WO2022109761A1 - 汽车后排座椅及汽车 - Google Patents

汽车后排座椅及汽车 Download PDF

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Publication number
WO2022109761A1
WO2022109761A1 PCT/CN2020/130976 CN2020130976W WO2022109761A1 WO 2022109761 A1 WO2022109761 A1 WO 2022109761A1 CN 2020130976 W CN2020130976 W CN 2020130976W WO 2022109761 A1 WO2022109761 A1 WO 2022109761A1
Authority
WO
WIPO (PCT)
Prior art keywords
stop point
point
slide rail
rear seat
rail body
Prior art date
Application number
PCT/CN2020/130976
Other languages
English (en)
French (fr)
Inventor
赵德强
张善国
许垚锦
邓清
Original Assignee
浙江吉利控股集团有限公司
舒茨曼座椅（宁波）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江吉利控股集团有限公司, 舒茨曼座椅（宁波）有限公司 filed Critical 浙江吉利控股集团有限公司
Priority to PCT/CN2020/130976 priority Critical patent/WO2022109761A1/zh
Priority to CN202080099568.7A priority patent/CN115697762A/zh
Publication of WO2022109761A1 publication Critical patent/WO2022109761A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/07—Slide construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/12—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable and tiltable

Definitions

  • the present application relates to the technical field of automobile seat structures, and in particular, to an automobile rear seat and an automobile having the automobile rear seat.
  • the maximum sliding travel of the rear seat design is generally 130mm (of course, the maximum sliding travel of the seat design of different models is slightly different).
  • the seat needs to be slid to the front end before the rear end mounting bolt can be installed in the rear space of the seat. Due to the short maximum sliding stroke of the seat of some short wheelbase models , the rear mounting bolts cannot be installed after the seat slides to the front end of the design.
  • the seat can slide forward at least 210mm when loading, that is, the maximum sliding stroke when loading is at least 210mm, and the maximum sliding stroke in normal use needs to be less than 210mm (for example, the above 130mm, the maximum sliding Excessive travel may cause injury to passengers), i.e. the seat has a double sliding travel.
  • the 210mm sliding stroke of the seat is only used when loading the car, and the function of easy access to the rear seat is redundant, and it is not used when the seat is in normal use.
  • the structure of the sliding rail travel switching mechanism of the seat is complicated.
  • the cost is high, the cost performance of using a similar structure is not high, and the cost exceeds the budget.
  • the purpose of this application is to provide a car rear seat, which aims to solve the deficiencies of the above-mentioned background technology, and can use the first upper gear point, the first lower gear point, the second upper gear point and the second lower gear point.
  • the double sliding stroke of the rear seat of the automobile is realized, and the structure is simple, which not only saves the installation time, but also reduces the space occupied by the parts, and at the same time reduces the production cost.
  • the present application provides an automobile rear seat, including a seat cushion, a sliding mechanism is arranged below the seat cushion, the sliding mechanism includes an upper sliding rail and a lowering rail, the upper sliding rail can slide along the lowering rail, so
  • the upper slide rail is provided with a first upper stop point and a second upper stop point
  • the lower rail is provided with a first lower stop point and a second lower stop point
  • the first lower stop point is connected with the first upper stop point.
  • the points correspond to front and rear and the first lower gear point is located in front of the first upper gear point, the second lower gear point corresponds to the front and rear of the second upper gear point and the second lower gear point is located at In front of the second upper stop point, the distance between the second upper stop point and the second lower stop point is smaller than the distance between the first upper stop point and the first lower stop point;
  • the upper slide rail drives the The first upper gear point moves toward the first lower gear point, and when the first upper gear point abuts against the first lower gear point, the vehicle rear seat has a first maximum sliding stroke
  • the upper slide rail drives the second upper stop point
  • the gear point moves toward the second lower gear point, and when the second upper gear point abuts against the second lower gear point, the vehicle rear seat has a second maximum sliding stroke
  • the second maximum sliding stroke is smaller than the first maximum sliding stroke.
  • the upper slide rail includes an upper slide rail body and an upper support, the upper support is fixedly connected with the upper slide rail body, and the upper support is located above the upper slide rail body;
  • the lower rail includes a lower rail body and a lower bracket, the lower bracket is fixedly connected with the lower rail body, and the lower bracket is located below the lower rail body.
  • the upper slide rail body includes a first top wall and two first side walls extending downward from opposite sides of the first top wall, respectively, and the bottoms of the first side walls are turned outwards Folded to form the first outer flange;
  • the slide rail body includes a first bottom wall and two first side plates extending upward from opposite sides of the first bottom wall, respectively, and the top of the first side plates is folded inward to form a first inner wall. flanging;
  • the upper bracket includes a second top wall and two second side walls extending downward from opposite sides of the second top wall, respectively, and the bottom of the second side walls is folded inward to form a second inner wall. flanging;
  • the lower bracket includes a second bottom wall and two second side plates extending upward from opposite sides of the second bottom wall respectively, and the top of the second side plates is folded outward to form a second eversion side.
  • first upper stop point is arranged on the upper bracket
  • second upper stop point is arranged on the upper slide rail body
  • first lower stop point is arranged on the lower bracket
  • first stop Two lower stop points are arranged on the lower rail body.
  • first upper stop point is formed by the front end of the second inner flange
  • first lower stop point is formed protruding from the front end of the second outer flange
  • second upper stop The point is mounted on the first top wall and the second lower stop point is mounted on the first bottom wall.
  • first upper stop point and the second upper stop point are both arranged on the upper bracket, and the first lower stop point and the second lower stop point are both arranged on the lower bracket.
  • first upper stop point and the second upper stop point are the same stop point and are formed by the front end of the second inner flange, and the first lower stop point is formed protruding from the first stop point.
  • the second lower stop point is mounted on the second side plate and is located behind the first lower stop point.
  • the second inner turning edge and the second outer turning edge are mutually engaged, and the second inner turning edge can slide along the second outer turning edge;
  • the first outer turning edge and the first inner turning edge are fastened to each other, and the first outer turning edge can slide along the first inner turning edge.
  • the upper slide rail includes an upper slide rail body
  • the lower slide rail includes a lower slide rail body
  • the upper slide rail body includes a first top wall and two first side walls extending downward from opposite sides of the first top wall, respectively, and the bottoms of the first side walls are folded outward to form a first side wall. a flanging;
  • the slide rail body includes a first bottom wall and two first side plates extending upward from opposite sides of the first bottom wall, respectively, and the top of the first side plates is folded inward to form a first inner wall. Flanging.
  • first upper stop point is formed protruding from the first side wall
  • second upper stop point is mounted on the first side wall and is located in front of the first upper stop point
  • the first lower stop point and the second lower stop point are the same stop point and are protruded from the top of the first side plate.
  • a step is formed on the first outer flange, the first upper stop point and the second upper stop point are the same stop point and are formed by the step, and the first lower stop point is formed from the step.
  • the inner side of the first side plate is formed to protrude, and the second lower stop point is installed on the first side plate and is located behind the first lower stop point.
  • first upper stop point and the second upper stop point are both set on the first top wall, and the second upper stop point is located in front of the first upper stop point, and the first lower stop point is located in front of the first upper stop point.
  • the stop point and the second lower stop point are the same stop point and are arranged on the first bottom wall.
  • the present application also provides an automobile, comprising the above-mentioned automobile rear seat.
  • the first upper gear point can be connected with the first gear when the upper slide rail slides.
  • the lower gear points are in contact with each other, and the first maximum sliding stroke is formed between the first upper gear point and the first lower gear point.
  • the rear space of the car seat can be easily entered Install the rear end mounting bolts inside; after the rear end mounting bolts are installed, by installing the second lower gear point, the second maximum sliding stroke can be formed between the second upper gear point and the second lower gear point.
  • the second maximum sliding stroke is smaller than the first maximum sliding stroke, which shortens the vehicle
  • the maximum sliding stroke of the seat is safer when using the car seat at ordinary times.
  • the second maximum sliding stroke can be changed by adjusting the installation position of the second lower gear point, so as to be suitable for different models.
  • the automobile rear seat provided by the present application has a simple structure and is easy to install, which not only saves the man-hours for installing parts, but also reduces the space occupied by the parts, and at the same time, the cost of the parts is low and the production cost is reduced.
  • FIG. 1 is a front view of the rear seat of the automobile in the first embodiment of the application.
  • FIG. 2 is a left side view of FIG. 1 .
  • FIG. 3 is an exploded schematic view of the sliding mechanism in FIG. 1 .
  • FIG. 4 is a schematic structural diagram of the sliding mechanism in FIG. 1 .
  • FIG. 5 is a partial cross-sectional view of the sliding mechanism in FIG. 1 .
  • FIG. 6 is an exploded schematic view of a sliding mechanism in another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of the sliding mechanism in FIG. 6 .
  • FIG. 8 is a partial cross-sectional view of the sliding mechanism of FIG. 6 .
  • FIG. 9 is a schematic structural diagram of the sliding mechanism in the second embodiment of the application.
  • FIG. 10 is another schematic structural diagram of the sliding mechanism in FIG. 9 .
  • FIG. 11 is a schematic structural diagram of the sliding mechanism in the third embodiment of the application.
  • FIG. 12 is another schematic structural diagram of the sliding mechanism in FIG. 11 .
  • FIG. 13 is an exploded schematic view of the sliding mechanism in the fourth embodiment of the application.
  • FIG. 14 is a schematic structural diagram of the sliding mechanism in FIG. 13 .
  • FIG. 15 is an exploded schematic view of the sliding mechanism in the fifth embodiment of the application.
  • FIG. 16 is a schematic cross-sectional view of the sliding mechanism in FIG. 15 .
  • the vehicle rear seat 1 provided in the first embodiment of the present application aims to solve the problem that when the vehicle rear seat 1 is installed into the body of the vehicle, due to some short-wheelbase vehicles
  • the maximum sliding stroke of the rear seat 1 is designed to be short. After the rear seat 1 slides to the front end, it still cannot enter the rear space of the rear seat 1 to install the rear end loading bolts (not shown in the figure.
  • the vehicle rear seat 1 includes a backrest 11 and a seat cushion 12 that are connected to each other.
  • the number of backrests 11 is two, which are respectively 60% backrest 111 and 40% backrest 112 (wherein, 60% and 40% refer to the ratio of the backrest 111 and the backrest 112 to the widths of the rear seats respectively)
  • the number of seat cushions 12 is two, respectively 60% seat cushion 121 and 40% seat cushion 122 (wherein, 60% and 40% refer to the ratio of seat cushion 121 and seat cushion 122 to the width of the rear seat respectively).
  • the 60% backrest 111 is rotatably connected to the 60% seat cushion 121
  • the 40% backrest 112 is rotatably connected to the 40% seat cushion 122 .
  • a sliding mechanism 2 is provided below the seat cushion 12 .
  • the sliding mechanism 2 includes an upper sliding rail 21 and a lower sliding rail 22 .
  • the upper sliding rail 21 can slide along the lower sliding rail 22 , and the upper sliding rail 21
  • the bottom rail 22 is fixedly connected with the bottom of the seat cushion 12, and the lower rail 22 is fixedly connected with the body of the automobile.
  • the sliding mechanism 2 is controlled by the unlocking mechanism 9 to slide and lock, so as to realize the front and rear sliding and locking of the rear seat 1 of the automobile.
  • the direction S in which the rear seat 1 slides toward the steering wheel (not shown) is defined as the front.
  • a pair of sliding mechanisms 2 are respectively provided at the bottom of the left and right sides of the 60% seat cushion 121 and the bottom of the left and right sides of the 40% seat cushion 122 to ensure the stability of the rear seat 1 when sliding back and forth.
  • the upper slide rail 21 is provided with a first upper stop point 4 and a second upper stop point 6
  • the lower rail 22 is provided with a first lower stop point 5 and a second lower stop point 7
  • the first lower gear point 5 corresponds to the front and rear of the first upper gear point 4
  • the first lower gear point 5 is located in front of the first upper gear point 4
  • the second lower gear point 7 corresponds to the front and rear of the second upper gear point 6
  • the second lower stop point 7 is located in front of the second upper stop point 6
  • the distance between the second upper stop point 6 and the second lower stop point 7 is smaller than that between the first upper stop point 4 and the first lower stop point 5 the distance.
  • the upper slide rail 21 slides along the lower rail 22 and one of the second upper stop point 6 and the second lower stop point 7 has not been installed on the sliding mechanism 2, the upper slide rail 21 drives the first upper stop point 4 toward The first lower gear point 5 moves, and when the first upper gear point 4 abuts against the first lower gear point 5 , the vehicle rear seat 1 has a first maximum sliding stroke.
  • the upper slide rail 21 slides along the lower rail 22 and the second upper stop point 6 and the second lower stop point 7 are both installed on the sliding mechanism 2 , the upper slide rail 21 drives the second upper stop point 6 toward the second lower stop The point 7 moves, and when the second upper gear point 6 abuts against the second lower gear point 7 , the vehicle rear seat 1 has the second maximum sliding stroke.
  • the second maximum sliding stroke is smaller than the first maximum sliding stroke.
  • the first maximum sliding travel is the travel used by the rear seat 1 when loading the vehicle, and under this travel, the second upper gear point 6 and/or the second lower gear point 7 have not been installed on the sliding mechanism 2, the rear space of the rear seat 1 of the automobile is large, which is convenient for installing the rear end loading bolts; in this embodiment, the first maximum sliding stroke is 210mm.
  • the second maximum sliding stroke is the stroke used by the user when the user normally rides after the rear seat 1 is loaded into the vehicle.
  • the second upper gear point 6 and/or the second lower gear point 7 are installed on the sliding mechanism 2 to shorten the maximum sliding stroke of the vehicle rear seat 1, here Under the stroke, the maximum sliding distance of the rear seat 1 is relatively small, which can ensure the personal safety of the user; in this embodiment, the second maximum sliding stroke is 130 mm.
  • the upper slide rail 21 includes an upper slide rail body 23 and an upper bracket 24
  • the upper bracket 24 is fixedly connected with the upper slide rail body 23 and the upper bracket 24 is located on the upper Above the slide rail body 23
  • the lower rail 22 includes a lower rail body 25 and a lower bracket 26 .
  • the lower bracket 26 is fixedly connected with the lower rail body 25 and the lower bracket 26 is located below the lower rail body 25 .
  • the upper bracket 24 is fixedly connected to the top of the upper slide rail body 23
  • the bottom of the seat cushion 12 is fixedly connected to the upper bracket 24 and the upper slide rail body 23 at the same time;
  • the bottom is fixedly connected
  • the lower bracket 26 is fixedly connected with the body of the automobile.
  • the upper rail body 23 can slide along the lower rail body 25
  • the upper bracket 24 can slide along the lower bracket 26 .
  • the upper bracket 24 and the lower bracket 26 can improve the bearing strength of the sliding mechanism 2 and at the same time reduce the bearing load of the upper slide rail body 23 and the lower rail body 25 .
  • the upper bracket 24 and the lower bracket 26 can also be omitted, so that the upper rail body 23 is directly fixedly connected to the seat cushion 12 , and the lower rail body 25 is directly fixedly connected to the vehicle body.
  • the upper slide rail body 23 is an inverted "U” shape structure, and the upper slide rail body 23 includes a first top wall 231 and two first side walls extending downward from opposite sides of the first top wall 231 respectively. 232 , the bottom of the first side wall 232 is folded outward to form a first outer flange 233 .
  • the lower rail body 25 has a "U" shape structure, and the lower rail body 25 includes a first bottom wall 251 and two first side plates 252 extending upward from opposite sides of the first bottom wall 251 respectively. The first side plates 252 The top of the fuselage is folded inward to form the first inner folded edge 253 .
  • the bottom of the upper slide rail body 23 is in contact with the first bottom wall 251 of the lower slide rail body 25 .
  • An outer flange 233, the first outer flange 233 is in contact with the first bottom wall 251 of the lower rail body 25, and the first outer flange 233 can slide along the first bottom wall 251 of the lower rail body 25, so that the upper The slide rail body 23 can slide along the slide rail body 25 more smoothly.
  • first outer flange 233 and the first inner flange 253 are fastened to each other, and the first outer flange 233 can slide along the first inner flange 253 .
  • the first outer flange 233 and the first inner flange 253 are fastened to each other, which can prevent the upper slide rail body 23 and the lower rail body 25 from being separated, thereby avoiding the occurrence of the rear seat 1 during sliding or normal riding. In the case of tipping back and forth or side-to-side.
  • the upper bracket 24 includes a second top wall 241 and two second side walls 242 extending downward from opposite sides of the second top wall 241 respectively.
  • the bottom of 242 is folded inward to form a second inner flange 243 .
  • the lower bracket 26 includes a second bottom wall 261 and two second side plates 262 extending upwards from opposite sides of the second bottom wall 261 respectively.
  • the top of the second side plates 262 is folded outward to form a second outer flange 263.
  • the inner surface of the second side wall 242 is in contact with the top of the second side plate 262 .
  • the inner surface of the second side wall 242 is in contact with the second outer flange 263, and the inner surface of the second side wall 242 can slide along the second outer flange 263, so that the upper bracket 24 can slide along the lower side more smoothly The bracket 26 slides.
  • the second inner turning edge 243 and the second outer turning edge 263 are fastened to each other, and the second inner turning edge 243 can slide along the second outer turning edge 263 .
  • the second inner flange 243 and the second outer flange 263 are fastened to each other, which can prevent the upper bracket 24 and the lower bracket 26 from being detached, and further prevent the rear seat 1 from tipping back and forth during sliding or normal riding. Or roll left and right to ensure the user's personal safety.
  • the first upper stop point 4 is arranged on the upper bracket 24
  • the second upper stop point 6 is arranged on the upper slide rail body 23
  • the first lower stop point 5 is arranged on the lower bracket 26
  • the second lower stop point 7 Installed on the lower rail body 25 .
  • the first upper stop point 4 is formed by the front end of the second inner flange 243
  • the first lower stop point 5 is formed protruding from the front end of the second outer flange 263
  • the second upper stop The point 6 is mounted on the first top wall 231 and the second lower stop point 7 is mounted on the first bottom wall 251 .
  • the first lower stop point 5 is only disposed on the second outer flange 263 of one of the second side plates 262 .
  • the first lower stop point 5 may be disposed on the second outer flanges 263 of the two second side plates 262 at the same time, which is not limited herein.
  • the first lower stop point 5 is formed by the front end of the second outer flange 263 protruding downward.
  • the first lower stop point 5 may be formed by the front end of the second outer flange 263 protruding outward or upward, which is not limited herein.
  • the top of the upper slide rail body 23 is provided with a first through hole 234
  • the second upper stop point 6 is arranged in the first through hole 234
  • the second upper stop point 6 is formed by the top of the upper slide rail body 23 .
  • the wall extends downward.
  • the bottom of the lower rail body 25 is provided with a second through hole 254 , the second through hole 254 is located in front of the first through hole 234 , the second lower stop point 7 is arranged in the second through hole 254 , and the second lower stop point 7 slides down from The bottom wall of the rail body 25 extends upward.
  • the second lower stop point 7 can abut against the second upper stop point 6 , that is, the second lower stop point 7 is located on the moving path of the second upper stop point 6 .
  • both the first through hole 234 and the second through hole 254 are located on the same axis of the sliding direction of the upper slide rail body 23 .
  • the second lower stop point 7 is a bolt
  • the second upper stop point 6 is another rigid object.
  • the second upper gear point 6 is pre-installed on the upper rail body 23, and the second lower gear point 7 has not been installed on the lower rail body 25 at this time; 1.
  • the second lower stop 7 is installed on the lower rail body 25, and then the second lower stop 7 is fixed on the lower rail body 25 by nuts or welding.
  • the second upper stop point 6 may also be a bolt
  • the second lower stop point 7 may be other rigid objects.
  • the second lower gear point 7 is pre-installed on the lower rail body 25, and the second upper gear point 6 has not been installed on the upper rail body 23 at this time; 1 After the loading is completed, install the second upper stop point 6 on the upper slide rail body 23, and then fix the second upper stop point 6 on the upper slide rail body 23 by nuts or welding. It is easy to think that the second upper stop point 6 and the second lower stop point 7 may also be in other forms and structures, which are not limited here.
  • the second upper stop point 6 and the second lower stop point 7 are both bolts.
  • a bolt is pre-installed on the upper rail body 23 or the lower rail body 25; when the rear seat 1 is loaded, another bolt is installed and fixed .
  • the upper slide rail body 23 and the lower slide rail body 25 are not installed with bolts; when the rear seat 1 of the car is loaded, the two bolts are installed separately. It is fixed to the upper slide rail body 23 and the lower slide rail body 25, which is not limited here.
  • the installation sequence of the car rear seat 1 provided in this embodiment is as follows: put the car rear seat 1 into the vehicle body, and when installing the rear-end car bolts, the second through hole 254 has not yet been installed in the second through hole 254.
  • the lower gear point 7, the first upper gear point 4 can abut against the first lower gear point 5, that is, the rear seat 1 of the automobile has the first maximum sliding stroke.
  • the sliding stroke that is, when the second lower stop point 7 and the second upper stop point 6 abut, there is still a distance between the first upper stop point 4 and the first lower stop point 5, that is, the first upper stop point 4 has not yet Abut against the first lower stop point 5 .
  • the car rear seat 1 provided by the embodiment of the present application, through the first upper gear point 4 and the first lower gear point 5 abutting, so that the car rear seat 1 has the first maximum sliding stroke, when the car rear seat When the 1 is located at the most front end of the first maximum sliding stroke, it can easily enter the rear space of the rear seat 1 of the automobile to install the rear end mounting bolts.
  • the second lower gear point 7 After the rear end loading bolts are installed, by installing the second lower gear point 7, the second lower gear point 7 can abut against the second upper gear point 6, so that the rear seat 1 of the automobile has the second maximum sliding stroke,
  • the second maximum sliding stroke is smaller than the first maximum sliding stroke, that is, the maximum sliding stroke of the rear seat 1 of the automobile is shortened, and the personal safety of the user is ensured.
  • the second maximum sliding stroke can also be changed by adjusting the installation position of the second lower gear point 7, so as to be suitable for different vehicle models.
  • the Chinese patent application CN110466396A of the background technology in order to realize the double sliding stroke, the patent needs to add a stroke blocking member, a stroke adjusting member, a seat movable side plate and its activating structure on the car seat, and the embodiment of the present application only Two parts, the second lower stop point 7 and the second upper stop point 6 need to be added, which reduces the cost by about 85% compared with the prior art.
  • the embodiment of the present application only needs to add two additional parts, the second lower gear point 7 and the second upper gear point 6, to realize the double sliding stroke of the rear seat 1 of the automobile, which is not only simple in structure, reliable in function, convenient in installation, saves
  • the installation time of the parts is reduced, the space occupied by the parts is reduced, and the cost of the parts is low, which reduces the production cost.
  • the car rear seat 1 provided in the second embodiment of the present application is basically the same as the first embodiment, and the difference lies in the installation position of the second lower gear point 7 is different.
  • the second upper stop point 6 and the first upper stop point 4 are the same stop point.
  • first upper stop point 4 and the second upper stop point 6 are both arranged on the upper bracket 24
  • first lower stop point 5 and the second lower stop point 7 are both arranged on the lower bracket 26 .
  • the first upper stop point 4 and the second upper stop point 6 are the same stop point and are formed by the front end of the second inner flange 243 , and the first lower stop point 5 is formed protruding from the second eversion.
  • the second lower stop point 7 is mounted on the second side plate 262 and is located behind the first lower stop point 5 .
  • one of the second side plates 262 is provided with a third through hole 268 , the third through hole 268 is located behind the first lower stop point 5 , and the second lower stop point 7 is installed on the third through hole 268 .
  • the second lower stop point 7 extends and protrudes outward from the outer side wall of the second side plate 262 .
  • a third through hole 268 may be provided on each of the two second side plates 262 , and a second lower block is installed in the third through hole 268 of each second side plate 262 .
  • Point 7 is not limited here.
  • the installation sequence of the car rear seat 1 provided in this embodiment is as follows: put the car rear seat 1 into the vehicle body, and when installing the rear end car bolt, at this time, the second through hole 268 has not yet been installed.
  • the lower gear point 7, the first upper gear point 4 can abut against the first lower gear point 5, that is, the rear seat 1 of the automobile has the first maximum sliding stroke. At this time, slide the rear seat 1 of the automobile to the front end,
  • the rear end mounting bolts can be easily installed into the rear space of the rear seat 1 of the vehicle.
  • the second lower gear point 7 is installed in the third through hole 268, and the second lower gear point 7 can abut against the second upper gear point 6, that is, the rear seat 1 of the automobile has The second maximum sliding stroke, since the second maximum sliding stroke is smaller than the first maximum sliding stroke, the original first maximum sliding stroke can be restrained, that is, when the second lower stop point 7 and the second upper stop point 6 abut, the first maximum sliding stroke can be restrained. There is still a certain distance between the first upper stop point 4 and the first lower stop point 5 , that is, the first upper stop point 4 has not yet abutted against the first lower stop point 5 .
  • the car rear seat 1 provided by the third embodiment of the present application is substantially the same as the first embodiment, the difference is that the upper slide rail 21 in this embodiment does not include the upper bracket 24 , and the slide rail 22 does not include lower bracket 26 . Meanwhile, the forms and installation positions of the first upper stop point 4 , the first lower stop point 5 , the second upper stop point 6 and the second lower stop point 7 in this embodiment are different from those of the first embodiment.
  • the upper slide rail 21 includes an upper slide rail body 23
  • the lower slide rail 22 includes a lower slide rail body 25 .
  • the upper rail body 23 is directly and fixedly connected to the bottom of the seat cushion 12
  • the lower rail body 25 is directly and fixedly connected to the vehicle body
  • the upper rail body 23 can slide along the lower rail body 25 .
  • the upper slide rail body 23 is an inverted "U"-shaped structure, and the upper slide rail body 23 includes a first top wall 231 and two first side walls 232 extending downward from opposite sides of the first top wall 231 respectively. The bottom of one side wall 232 is folded outward to form a first outer flange 233 .
  • the lower rail body 25 has a "U" shape structure, and the lower rail body 25 includes a first bottom wall 251 and two first side plates 252 extending upward from opposite sides of the first bottom wall 251 respectively.
  • the first side plates 252 The top of the fuselage is folded inward to form the first inner folded edge 253 .
  • the first upper stop point 4 is formed protruding from the first side wall 232
  • the second upper stop point 6 is mounted on the first side wall 232 and is located in front of the first upper stop point 4
  • the first lower stop The point 5 and the second lower stop point 7 are the same stop point and are protruded from the top of the first side plate 252 .
  • the first upper stop point 4 extends and protrudes outward from the outer surface of the first side wall 232
  • the first lower stop point 5 and the second lower stop point 7 are formed by the top of the first side plate 252 . Protruding upwards.
  • the first upper stop point 4 is only arranged on one of the first side walls 232 , and the first lower stop point 5 and the second lower stop point 7 are only arranged on one corresponding first side plate 252 .
  • the first upper stop point 4 may be provided on the two first side walls 232 at the same time, and the first lower stop point 5 and the second lower stop point 7 may be simultaneously provided on the two first side plates 252, which is not limited here.
  • the first side wall 232 is provided with a fourth through hole 236, the fourth through hole 236 is located in front of the first upper stop point 4, the second upper stop point 6 is installed in the fourth through hole 236, the first The two upper stop points 6 extend and protrude outward from the outer surface of the first side wall 232 .
  • the fourth through hole 236 is only provided on the first side wall 232 on the side where the first upper stop point 4 is located.
  • a fourth through hole 236 may be provided on both of the first side walls 232 , and a second upper stop point 6 is installed in the fourth through hole 236 of each of the first side walls 232 . , which is not limited here.
  • the installation sequence of the car rear seat 1 provided in this embodiment is as follows: put the car rear seat 1 into the vehicle body, and when installing the rear end car bolt, at this time, the fourth through hole 236 has not yet installed the second The upper gear point 6 and the first upper gear point 4 can abut against the first lower gear point 5, that is, the rear seat 1 of the automobile has the first maximum sliding stroke. At this time, slide the rear seat 1 of the automobile to the front end, The rear end mounting bolts can be easily installed into the rear space of the rear seat 1 of the vehicle.
  • the second upper gear point 6 is installed in the fourth through hole 236, and the second upper gear point 6 can abut against the second lower gear point 7, that is, the rear seat 1 of the automobile has The second maximum sliding stroke, since the second maximum sliding stroke is smaller than the first maximum sliding stroke, the original first maximum sliding stroke can be restrained, that is, when the second lower stop point 7 and the second upper stop point 6 abut, the first maximum sliding stroke can be restrained. There is still a certain distance between the first upper stop point 4 and the first lower stop point 5 , that is, the first upper stop point 4 has not yet abutted against the first lower stop point 5 .
  • this embodiment has simpler structure, fewer parts, lower cost and easier installation.
  • the rear seat 1 provided by the fourth embodiment of the present application is substantially the same as the third embodiment, and the upper slide rail 21 does not include an upper bracket 24 , and the lower rail 22 does not include a lower bracket. 26.
  • the difference is that the structure of the upper slide rail body 23 and the lower rail body 25 is different, while the first upper stop point 4, the first lower stop point 5, the second upper stop point 6 and the second lower stop point 7 are in the form and The installation location is different.
  • the upper slide rail 21 includes an upper slide rail body 23
  • the lower slide rail 22 includes a lower slide rail body 25 .
  • the upper rail body 23 is directly and fixedly connected to the bottom of the seat cushion 12
  • the lower rail body 25 is directly and fixedly connected to the vehicle body
  • the upper rail body 23 can slide along the lower rail body 25 .
  • the upper slide rail body 23 is an inverted "U"-shaped structure, and the upper slide rail body 23 includes a first top wall 231 and two first side walls 232 extending downward from opposite sides of the first top wall 231 respectively. The bottom of one side wall 232 is folded outward to form a first outer flange 233 .
  • the lower rail body 25 has a "U" shape structure, and the lower rail body 25 includes a first bottom wall 251 and two first side plates 252 extending upward from opposite sides of the first bottom wall 251 respectively.
  • the first side plates 252 The top of the fuselage is folded inward to form the first inner folded edge 253 .
  • a step 235 is formed on the first outer flange 233, the first upper stop point 4 and the second upper stop point 6 are the same stop point and are formed by the step 235, and the first lower stop point 5 starts from the first stop point 5.
  • the inner side of the side plate 252 is formed to protrude, and the second lower stop point 7 is installed on the first side plate 252 and is located behind the first lower stop point 5 .
  • the height of the front half of the first outer flange 233 is smaller than the height of the back half to form the step 235 .
  • the first lower stop point 5 is a cutting piece integral with the first side plate 252 formed by stamping on the first side plate 252 , and the first lower stop point 5 is inclined and bent toward the inner side of the first side plate 252 .
  • the first lower stop point 5 is only provided on one of the first side plates 252 .
  • the two first side plates 252 may both be provided with the first lower stop point 5 , which is not limited here.
  • one of the first side plates 252 is provided with a fifth through hole 257
  • the fifth through hole 257 is located behind the first lower stop point 5
  • the second lower stop point 7 is installed in the fifth through hole 257
  • the second lower stop point 7 extends and protrudes inward from the inner side wall of the first side plate 252 .
  • the fifth through holes 257 may be provided on the two first side plates 252
  • a second lower stop point 7 is installed in the fifth through holes 257 of each of the first side plates 252 . , which is not limited here.
  • the installation sequence of the car rear seat 1 provided in this embodiment is as follows: put the car rear seat 1 into the vehicle body, and when installing the rear end car bolt, at this time, the second through hole 257 has not yet been installed.
  • the lower gear point 7, the step 235 can abut against the first lower gear point 5, that is, the rear seat 1 of the automobile has the first maximum sliding stroke.
  • the second lower stop point 7 is installed in the fifth through hole 257, and the second lower stop point 7 can abut against the step 235, that is, the rear seat 1 of the automobile has the second maximum sliding Since the second maximum sliding stroke is smaller than the first maximum sliding stroke, the original first maximum sliding stroke can be suppressed, that is, when the second lower stop point 7 and the second upper stop point 6 abut, the first upper stop There is still a distance between 4 and the first lower stop point 5 , that is, the first upper stop point 4 has not yet abutted against the first lower stop point 5 .
  • the rear seat 1 provided by the fifth embodiment of the present application is substantially the same as the third embodiment, and the upper slide rail 21 does not include the upper bracket 24 , and the lower rail 22 does not include the lower bracket. 26.
  • the difference is that the installation positions of the first upper stop point 4, the first lower stop point 5, the second upper stop point 6 and the second lower stop point 7 are different.
  • the upper slide rail 21 includes an upper slide rail body 23
  • the lower slide rail 22 includes a lower slide rail body 25 .
  • the upper rail body 23 is directly and fixedly connected to the bottom of the seat cushion 12
  • the lower rail body 25 is directly and fixedly connected to the vehicle body
  • the upper rail body 23 can slide along the lower rail body 25 .
  • the upper slide rail body 23 is an inverted "U"-shaped structure, and the upper slide rail body 23 includes a first top wall 231 and two first side walls 232 extending downward from opposite sides of the first top wall 231 respectively. The bottom of one side wall 232 is folded outward to form a first outer flange 233 .
  • the lower rail body 25 has a "U" shape structure, and the lower rail body 25 includes a first bottom wall 251 and two first side plates 252 extending upward from opposite sides of the first bottom wall 251 respectively.
  • the first side plates 252 The top of the fuselage is folded inward to form the first inner folded edge 253 .
  • first upper stop point 4 and the second upper stop point 6 are both disposed on the first top wall 231 , the second upper stop point 6 is located in front of the first upper stop point 4 , the first lower stop point 5 and The second lower stop point 7 is the same stop point and is disposed on the first bottom wall 251 .
  • a sixth through hole 237 and a seventh through hole 238 are arranged on the first top wall 231 in sequence from rear to front, the first upper stop point 4 is arranged in the sixth through hole 237, and the second upper The stop point 6 is installed in the seventh through hole 238 , and the first upper stop point 4 and the second upper stop point 6 both extend and protrude downward from the first top wall 231 .
  • the first bottom wall 251 is provided with an eighth through hole 258.
  • the eighth through hole 258 is located in front of the sixth through hole 237 and the seventh through hole 238.
  • the first lower stop point 5 is arranged in the eighth through hole 258.
  • the lower stop point 5 extends upwardly and protrudes from the first bottom wall 251 .
  • the sixth through hole 237 , the seventh through hole 238 and the eighth through hole 258 are all located on the same axis of the sliding direction of the upper slide rail body 23 .
  • the installation sequence of the car rear seat 1 provided in this embodiment is as follows: put the car rear seat 1 into the vehicle body, and when installing the rear-end car bolts, at this time, the second through hole 238 has not been installed yet.
  • the upper gear point 6 and the first upper gear point 4 can abut against the first lower gear point 5, that is, the rear seat 1 of the automobile has the first maximum sliding stroke. At this time, slide the rear seat 1 of the automobile to the front end,
  • the rear end mounting bolts can be easily installed into the rear space of the rear seat 1 of the vehicle.
  • the second upper gear point 6 is installed in the seventh through hole 238, and the second lower gear point 7 can abut against the second upper gear point 6, that is, the rear seat 1 of the automobile has The second maximum sliding stroke, since the second maximum sliding stroke is smaller than the first maximum sliding stroke, the original first maximum sliding stroke can be restrained, that is, when the second lower stop point 7 and the second upper stop point 6 abut, the first maximum sliding stroke can be restrained. There is still a certain distance between the first upper stop point 4 and the first lower stop point 5 , that is, the first upper stop point 4 has not yet abutted against the first lower stop point 5 .
  • the first upper gear point can be connected with the first gear when the upper slide rail slides.
  • the lower gear points are in contact with each other, and the first maximum sliding stroke is formed between the first upper gear point and the first lower gear point.
  • the rear space of the car seat can be easily entered Install the rear end mounting bolts inside; after the rear end mounting bolts are installed, by installing the second lower gear point, the second maximum sliding stroke can be formed between the second upper gear point and the second lower gear point.
  • the second maximum sliding stroke is smaller than the first maximum sliding stroke, which shortens the vehicle
  • the maximum sliding stroke of the seat is safer when using the car seat at ordinary times.
  • the second maximum sliding stroke can be changed by adjusting the installation position of the second lower gear point, so as to be suitable for different models.
  • the automobile rear seat provided by the present application has a simple structure and is easy to install, which not only saves the man-hours for installing parts, but also reduces the space occupied by the parts, and at the same time, the cost of the parts is low and the production cost is reduced.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

一种汽车及汽车后排座椅（1），包括坐垫（12），坐垫（12）下方设有滑动机构（2），滑动机构（2）包括上滑轨（21）和下滑轨（22），上滑轨（21）可沿着下滑轨（22）滑动，上滑轨（21）设有第一上挡点（4）和第二上挡点（6），下滑轨（22）设有第一下挡点（5）和第二下挡点（7），第一下挡点（5）与第一上挡点（4）前后相对应且第一下挡点（5）位于第一上挡点（4）的前方，第二下挡点（7）与第二上挡点（6）前后相对应且第二下挡点（7）位于第二上挡点（6）的前方，第二上挡点（6）与第二下挡点（7）之间的距离小于第一上挡点（4）与第一下挡点（5）之间的距离。实现了汽车后排座椅的双滑动行程，结构简单，减小了零件占用空间，降低了成本。

Description

汽车后排座椅及汽车 技术领域
本申请涉及汽车座椅结构技术领域，尤其是涉及一种汽车后排座椅及具有该汽车后排座椅的汽车。
 背景技术
市场上部分车型的轴距较小，汽车后排座椅设计的最大滑动行程一般为130mm（当然，不同车型座椅设计的最大滑动行程略有不同）。在安装汽车后排座椅时，需要将座椅滑动至最前端后，才能进入座椅的后部空间内安装后端装车螺栓，由于部分短轴距车型的座椅的最大滑动行程较短，导致座椅滑动至设计最前端后仍不能安装后端装车螺栓。为了解决此问题，座椅在装车时至少能向前滑动210mm，即装车时的最大滑动行程至少为210mm，而在平时使用时最大滑动行程需要小于210mm（例如为上述的130mm，最大滑动行程过长可能会对乘客造成伤害），即座椅具有双滑动行程。
 技术问题
目前市场上具有双滑动行程的汽车座椅如中国申请专利CN110466396A所公开的“易进入座椅的滑轨行程切换机构及包含其的汽车座椅”，该结构为实现双滑动行程，下滑轨上连接有行程阻挡件，上滑轨上铰接座椅活动边板，座椅活动边板上连接有行程调节件。当座椅处于乘坐状态时，行程调节件能抵靠于阻挡件使得座椅具有第一滑动行程；当座椅处于易进入状态时，座椅活动边板向上翻起，行程调节件脱离于阻挡件使得座椅具有第二滑动行程。该座椅的210mm滑动行程仅在装车时使用，其易进入后排座椅的功能有冗余，在座椅平时使用时不会用到，同时该座椅的滑轨行程切换机构结构复杂、成本较高，采用类似的结构性价比不高，成本超出预算。
 技术解决方案
本申请的目的是提供一种汽车后排座椅，旨在解决上述背景技术存在的不足，利用第一上挡点、第一下挡点、第二上挡点和第二下挡点即可实现汽车后排座椅的双滑动行程，结构简单，既节省了安装工时，又减小了零件占用空间，同时降低了生产成本。
本申请提供一种汽车后排座椅，包括坐垫，所述坐垫下方设有滑动机构，所述滑动机构包括上滑轨和下滑轨，所述上滑轨可沿着所述下滑轨滑动，所述上滑轨设有第一上挡点和第二上挡点，所述下滑轨设有第一下挡点和第二下挡点，所述第一下挡点与所述第一上挡点前后相对应且所述第一下挡点位于所述第一上挡点的前方，所述第二下挡点与所述第二上挡点前后相对应且所述第二下挡点位于所述第二上挡点的前方，所述第二上挡点与所述第二下挡点之间的距离小于所述第一上挡点与所述第一下挡点之间的距离；
当所述上滑轨沿着所述下滑轨滑动且所述第二上挡点和所述第二下挡点其中之一还未安装到所述滑动机构上时，所述上滑轨带动所述第一上挡点朝向所述第一下挡点移动，当所述第一上挡点与所述第一下挡点相抵靠时，所述汽车后排座椅具有第一最大滑动行程；
当所述上滑轨沿着所述下滑轨滑动且所述第二上挡点和所述第二下挡点均安装到所述滑动机构上时，所述上滑轨带动所述第二上挡点朝向所述第二下挡点移动，当所述第二上挡点与所述第二下挡点相抵靠时，所述汽车后排座椅具有第二最大滑动行程；
其中，所述第二最大滑动行程小于所述第一最大滑动行程。
进一步地，所述上滑轨包括上滑轨本体和上支架，所述上支架与所述上滑轨本体固定连接且所述上支架位于所述上滑轨本体上方；
所述下滑轨包括下滑轨本体和下支架，所述下支架与所述下滑轨本体固定连接且所述下支架位于所述下滑轨本体下方。
进一步地，所述上滑轨本体包括第一顶壁和从所述第一顶壁的相对两侧分别向下延伸形成的两个第一侧壁，所述第一侧壁的底部向外翻折形成第一外翻边；
所述下滑轨本体包括第一底壁和从所述第一底壁的相对两侧分别向上延伸形成的两个第一侧板，所述第一侧板的顶部向内翻折形成第一内翻边；
所述上支架包括第二顶壁和从所述第二顶壁的相对两侧分别向下延伸形成的两个第二侧壁，所述第二侧壁的底部向内翻折形成第二内翻边；
所述下支架包括第二底壁和从所述第二底壁的相对两侧分别向上延伸形成的两个第二侧板，所述第二侧板的顶部向外翻折形成第二外翻边。
进一步地，所述第一上挡点设于所述上支架，所述第二上挡点设于所述上滑轨本体，所述第一下挡点设于所述下支架，所述第二下挡点设于所述下滑轨本体。
进一步地，所述第一上挡点由所述第二内翻边的前端部形成，所述第一下挡点凸出形成于所述第二外翻边的前端，所述第二上挡点安装在所述第一顶壁上，所述第二下挡点安装在所述第一底壁上。
进一步地，所述第一上挡点和所述第二上挡点均设于所述上支架，所述第一下挡点和所述第二下挡点均设于所述下支架。
进一步地，所述第一上挡点和所述第二上挡点为同一挡点且由所述第二内翻边的前端部形成，所述第一下挡点凸出形成于所述第二外翻边的前端，所述第二下挡点安装在所述第二侧板上且位于所述第一下挡点的后方。
进一步地，所述第二内翻边与所述第二外翻边相互扣合且所述第二内翻边可沿着所述第二外翻边滑动；
所述第一外翻边与所述第一内翻边相互扣合且所述第一外翻边可沿着所述第一内翻边滑动。
进一步地，所述上滑轨包括上滑轨本体，所述下滑轨包括下滑轨本体；
所述上滑轨本体包括第一顶壁和从所述第一顶壁的相对两侧分别向下延伸形成的两个第一侧壁，所述第一侧壁的底部向外翻折形成第一外翻边；
所述下滑轨本体包括第一底壁和从所述第一底壁的相对两侧分别向上延伸形成的两个第一侧板，所述第一侧板的顶部向内翻折形成第一内翻边。
进一步地，所述第一上挡点凸出形成于所述第一侧壁，所述第二上挡点安装在所述第一侧壁上且位于所述第一上挡点前方，所述第一下挡点和所述第二下挡点为同一挡点且凸出形成于所述第一侧板的顶部。
进一步地，所述第一外翻边上形成有台阶，所述第一上挡点和所述第二上挡点为同一挡点且由所述台阶形成，所述第一下挡点从所述第一侧板的内侧凸出形成，所述第二下挡点安装在所述第一侧板上且位于所述第一下挡点后方。
进一步地，所述第一上挡点和所述第二上挡点均设于所述第一顶壁且所述第二上挡点位于所述第一上挡点前方，所述第一下挡点和所述第二下挡点为同一挡点且设于所述第一底壁。
本申请还提供一种汽车，包括以上所述的汽车后排座椅。
 有益效果
本申请提供的汽车后排座椅，通过在上滑轨上设置第一上挡点，在下滑轨上设置第一下挡点，使得第一上挡点在上滑轨滑动时能与第一下挡点相抵靠，第一上挡点与第一下挡点之间形成第一最大滑动行程，在汽车座椅位于该第一最大滑动行程时，能够轻易地进入汽车座椅的后部空间内安装后端装车螺栓；在后端装车螺栓安装完成后，通过安装第二下挡点，即可在第二上挡点与第二下挡点之间形成第二最大滑动行程。由于第一下挡点与第一上挡点之间的距离大于第二下挡点与第二上挡点之间的距离，故第二最大滑动行程小于第一最大滑动行程，即缩短了汽车座椅的最大滑动行程，在平时使用汽车座椅时更安全，同时还可以通过调整第二下挡点的安装位置来改变第二最大滑动行程，以适用于不同的车型。
本申请提供的汽车后排座椅结构简单，安装方便，既节省了零件的安装工时，又减小了零件占用空间，同时零件成本低，降低了生产成本。
 附图说明
图1为本申请第一实施例中汽车后排座椅的主视图。
图2为图1的左视图。
图3为图1中滑动机构的分解示意图。
图4为图1中滑动机构的结构示意图。
图5为图1中滑动机构的局部剖视图。
图6为本申请另一实施例中滑动机构的分解示意图。
图7为图6中滑动机构的结构示意图。
图8为图6中滑动机构的局部剖视图。
图9为本申请第二实施例中滑动机构的结构示意图。
图10为图9中滑动机构的另一结构示意图。
图11为本申请第三实施例中滑动机构的结构示意图。
图12为图11中滑动机构的另一结构示意图。
图13为本申请第四实施例中滑动机构的分解示意图。
图14为图13中滑动机构的结构示意图。
图15为本申请第五实施例中滑动机构的分解示意图。
图16为图15中滑动机构的截面示意图。
 本发明的实施方式
下面结合附图和实施例，对本申请的具体实施方式作进一步详细描述。以下实施例用于说明本申请，但不用来限制本申请的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”、“第三”、“第四”等（如果存在）是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请的说明书和权利要求书中所涉及的上、下、左、右、前、后、顶、底等（如果存在）方位词是以附图中的结构位于图中的位置以及结构相互之间的位置来定义的，只是为了表达技术方案的清楚及方便。应当理解，所述方位词的使用不应限制本申请请求保护的范围。
第一实施例
如图1至图5所示，本申请第一实施例提供的汽车后排座椅1，旨在解决将汽车后排座椅1安装到汽车的车身内时，由于部分短轴距车型的汽车后排座椅1设计的最大滑动行程较短，汽车后排座椅1滑动至最前端后，仍不能进入汽车后排座椅1的后部空间内安装后端装车螺栓（图未示，即将汽车后排座椅1的后端固定到汽车的车身上的螺栓）的问题。
具体地，如图1及图2所示，汽车后排座椅1包括相互连接的靠背11和坐垫12。在本实施例中，靠背11的数量为两个，分别为60%靠背111和40%靠背112（其中，60%和40%指靠背111和靠背112分别占后排座椅的宽度之比），坐垫12的数量为两个，分别为60%坐垫121和40%坐垫122（其中，60%和40%指坐垫121和坐垫122分别占后排座椅的宽度之比）。60%靠背111可转动地与60%坐垫121相连，40%靠背112可转动地与40%坐垫122相连，靠背11与坐垫12之间通过角度调节机构8实现可转动连接和角度调节。
进一步地，如图1及图2所示，坐垫12下方设有滑动机构2，滑动机构2包括上滑轨21和下滑轨22，上滑轨21可沿着下滑轨22滑动，上滑轨21与坐垫12的底部固定连接，下滑轨22与汽车的车身固定连接。滑动机构2通过解锁机构9控制其滑动和锁止，以实现汽车后排座椅1的前后滑动和锁止。需要说明的是，如图1及图2所示，本实施例中将汽车后排座椅1朝向方向盘（图未示）滑动的方向S定义为前方。
在本实施例中，60%坐垫121左右两侧的底部和40%坐垫122左右两侧的底部均各设一对滑动机构2，以保证汽车后排座椅1前后滑动时的稳定性。
进一步地，如图3至图5所示，上滑轨21设有第一上挡点4和第二上挡点6，下滑轨22设有第一下挡点5和第二下挡点7，第一下挡点5与第一上挡点4前后相对应且第一下挡点5位于第一上挡点4的前方，第二下挡点7与第二上挡点6前后相对应且第二下挡点7位于第二上挡点6的前方，第二上挡点6与第二下挡点7之间的距离小于第一上挡点4与第一下挡点5之间的距离。
当上滑轨21沿着下滑轨22滑动且第二上挡点6和第二下挡点7其中之一还未安装到滑动机构2上时，上滑轨21带动第一上挡点4朝向第一下挡点5移动，当第一上挡点4与第一下挡点5相抵靠时，汽车后排座椅1具有第一最大滑动行程。
当上滑轨21沿着下滑轨22滑动且第二上挡点6和第二下挡点7均安装到滑动机构2上时，上滑轨21带动第二上挡点6朝向第二下挡点7移动，当第二上挡点6与第二下挡点7相抵靠时，汽车后排座椅1具有第二最大滑动行程。其中，第二最大滑动行程小于第一最大滑动行程。
具体地，第一最大滑动行程为汽车后排座椅1在装车时所使用的行程，在此行程下，第二上挡点6和/或第二下挡点7还未安装到滑动机构2上，汽车后排座椅1的后部空间较大，便于安装后端装车螺栓；本实施例中，第一最大滑动行程为210mm。
第二最大滑动行程为汽车后排座椅1在装车完成后，用户正常乘坐时所使用的行程。当汽车后排座椅1在装车完成后，将第二上挡点6和/或第二下挡点7安装到滑动机构2上以缩短汽车后排座椅1的最大滑动行程，在此行程下，汽车后排座椅1可滑动的最大距离相对较小，可保证用户的人身安全；本实施例中，第二最大滑动行程为130mm。
进一步地，如图3至图5所示，在本实施例中，上滑轨21包括上滑轨本体23和上支架24，上支架24与上滑轨本体23固定连接且上支架24位于上滑轨本体23上方。下滑轨22包括下滑轨本体25和下支架26，下支架26与下滑轨本体25固定连接且下支架26位于下滑轨本体25下方。
具体地，在本实施例中，上支架24与上滑轨本体23的顶部固定连接，坐垫12的底部同时与上支架24和上滑轨本体23固定连接；下支架26与下滑轨本体25的底部固定连接，下支架26与汽车的车身固定连接。上滑轨本体23可沿着下滑轨本体25滑动，上支架24可沿着下支架26滑动。上支架24和下支架26可提升滑动机构2的承载强度，同时减轻上滑轨本体23和下滑轨本体25的承载负荷。
当然，在其它实施例中，也可以省略上支架24和下支架26，使上滑轨本体23直接与坐垫12固定连接，下滑轨本体25直接与汽车的车身固定连接。
进一步地，上滑轨本体23为倒“U”形结构，上滑轨本体23包括第一顶壁231和从第一顶壁231的相对两侧分别向下延伸形成的两个第一侧壁232，第一侧壁232的底部向外翻折形成第一外翻边233。下滑轨本体25为“U”形结构，下滑轨本体25包括第一底壁251和从第一底壁251的相对两侧分别向上延伸形成的两个第一侧板252，第一侧板252的顶部向内翻折形成第一内翻边253。
具体地，当上滑轨本体23沿着下滑轨本体25滑动时，上滑轨本体23的底部与下滑轨本体25的第一底壁251相接触，通过在上滑轨本体23的底部设置第一外翻边233，第一外翻边233与下滑轨本体25的第一底壁251相接触，且第一外翻边233可沿着下滑轨本体25的第一底壁251滑动，使上滑轨本体23能够更流畅地沿着下滑轨本体25滑动。
进一步地，第一外翻边233与第一内翻边253相互扣合且第一外翻边233可沿着第一内翻边253滑动。第一外翻边233与第一内翻边253相互扣合，可以防止上滑轨本体23与下滑轨本体25之间脱离，从而避免汽车后排座椅1在滑动过程中或正常乘坐中发生前后倾倒或左右侧翻的情况。
进一步地，如图3至图5所示，上支架24包括第二顶壁241和从第二顶壁241的相对两侧分别向下延伸形成的两个第二侧壁242，第二侧壁242的底部向内翻折形成第二内翻边243。下支架26包括第二底壁261和从第二底壁261的相对两侧分别向上延伸形成的两个第二侧板262，第二侧板262的顶部向外翻折形成第二外翻边263。
具体地，当上支架24沿着下支架26滑动时，第二侧壁242的内表面与第二侧板262的顶部相接触，通过在第二侧板262的顶部设置第二外翻边263，第二侧壁242的内表面与第二外翻边263相接触，且第二侧壁242的内表面可沿着第二外翻边263滑动，使上支架24能够更流畅地沿着下支架26滑动。
进一步地，第二内翻边243与第二外翻边263相互扣合且第二内翻边243可沿着第二外翻边263滑动。第二内翻边243与第二外翻边263相互扣合，可以防止上支架24和下支架26之间脱离，进一步地避免汽车后排座椅1在滑动过程中或正常乘坐中发生前后倾倒或左右侧翻的情况，以保证用户的人身安全。
在本实施例中，第一上挡点4设于上支架24，第二上挡点6设于上滑轨本体23，第一下挡点5设于下支架26，第二下挡点7设于下滑轨本体25。
进一步地，在本实施例中，第一上挡点4由第二内翻边243的前端部形成，第一下挡点5凸出形成于第二外翻边263的前端，第二上挡点6安装在第一顶壁231上，第二下挡点7安装在第一底壁251上。
在本实施例中，第一下挡点5只设置在其中一个第二侧板262的第二外翻边263上。当然，在其它实施例中，第一下挡点5可以同时设置在两个第二侧板262的第二外翻边263上，在此不作限定。
在本实施例中，第一下挡点5由第二外翻边263的前端向下凸出形成。当然，在其它实施例中，第一下挡点5可以由第二外翻边263的前端向外或向上凸出形成，在此不作限定。
在本实施例中，上滑轨本体23的顶部设有第一通孔234，第二上挡点6设置在第一通孔234内，第二上挡点6由上滑轨本体23的顶壁向下延伸。下滑轨本体25的底部设有第二通孔254，第二通孔254位于第一通孔234前方，第二下挡点7设置在第二通孔254内，第二下挡点7由下滑轨本体25的底壁向上延伸。第二下挡点7能与第二上挡点6相抵靠，即第二下挡点7位于第二上挡点6的移动路径上。
优选地，第一通孔234和第二通孔254均位于上滑轨本体23滑动方向的同一轴线上。
优选地，在本实施例中，第二下挡点7为螺栓，第二上挡点6为其它刚性物件。汽车后排座椅1在装车之前，第二上挡点6预先安装在上滑轨本体23上，此时下滑轨本体25上还未安装第二下挡点7；当汽车后排座椅1在装车完成后，第二下挡点7再安装到下滑轨本体25上，然后通过螺母或者焊接将第二下挡点7固定在下滑轨本体25上。当然，在其它实施例中，也可以是第二上挡点6为螺栓，第二下挡点7为其它刚性物件。汽车后排座椅1在装车之前，第二下挡点7预先安装在下滑轨本体25上，此时上滑轨本体23上还未安装第二上挡点6；当汽车后排座椅1在装车完成后，再将第二上挡点6安装到上滑轨本体23上，然后通过螺母或者焊接将第二上挡点6固定在上滑轨本体23上。容易想到，第二上挡点6和第二下挡点7还可以为其它的形式和结构，在此不作限定。
如图6至图8所示，在另一实施例中，第二上挡点6和第二下挡点7均为螺栓。汽车后排座椅1在装车之前，先在上滑轨本体23上或下滑轨本体25上预先安装固定一个螺栓；当汽车后排座椅1在装车完成后，再安装固定另一个螺栓。或者是汽车后排座椅1在装车之前，上滑轨本体23上和下滑轨本体25上均不安装螺栓；当汽车后排座椅1在装车完成后，再将两个螺栓分别安装固定到上滑轨本体23上和下滑轨本体25上，在此不作限定。
本实施例提供的汽车后排座椅1的安装顺序为：将汽车后排座椅1放入车身内，在安装后端装车螺栓时，此时第二通孔254内还未安装第二下挡点7，第一上挡点4能与第一下挡点5相抵靠，即汽车后排座椅1具有第一最大滑动行程，此时将汽车后排座椅1滑动至最前端，可方便地进入汽车后排座椅1的后部空间内安装后端装车螺栓；当后端装车螺栓安装完成后，在第二通孔254内安装第二下挡点7，第二下挡点7能与第二上挡点6相抵靠，即汽车后排座椅1具有第二最大滑动行程，由于第二最大滑动行程小于第一最大滑动行程，因此可以抑制住原来的第一最大滑动行程，即第二下挡点7与第二上挡点6相抵靠时，第一上挡点4与第一下挡点5之间还有一段距离，即第一上挡点4还未与第一下挡点5相抵靠。
本申请实施例提供的汽车后排座椅1，通过第一上挡点4与第一下挡点5相抵靠，使汽车后排座椅1具有第一最大滑动行程，当汽车后排座椅1位于第一最大滑动行程的最前端时，能够轻易地进入汽车后排座椅1的后部空间内安装后端装车螺栓。在后端装车螺栓安装完成后，通过安装第二下挡点7，第二下挡点7能与第二上挡点6相抵靠，使汽车后排座椅1具有第二最大滑动行程，而第二最大滑动行程小于第一最大滑动行程，即缩短了汽车后排座椅1的最大滑动行程，保证了用户的人身安全。同时还可以通过调整第二下挡点7的安装位置来改变第二最大滑动行程，以适用于不同的车型。
如背景技术的中国申请专利CN110466396A，为实现双滑动行程，该专利需要在汽车座椅上额外增加行程阻挡件、行程调节件、座椅活动边板及其促发结构，而本申请实施例仅需增加第二下挡点7和第二上挡点6两个零件，相较于现有技术成本降低约85%。
本申请实施例仅需额外增加第二下挡点7和第二上挡点6两个零件即可实现汽车后排座椅1的双滑动行程，不仅结构简单，功能可靠，安装方便，节省了零件的安装工时，又减小了零件占用空间，同时零件成本低，降低了生产成本。
第二实施例
如图9及图10所示，本申请第二实施例提供的汽车后排座椅1与第一实施例基本相同，不同点在于第二下挡点7安装的位置不同，同时本实施例中第二上挡点6与第一上挡点4为同一挡点。
具体地，在本实施例中，第一上挡点4和第二上挡点6均设于上支架24，第一下挡点5和第二下挡点7均设于下支架26。
在本实施例中，第一上挡点4和第二上挡点6为同一挡点且由第二内翻边243的前端部形成，第一下挡点5凸出形成于第二外翻边263的前端，第二下挡点7安装在第二侧板262上且位于第一下挡点5的后方。
具体地，在本实施例中，其中一个第二侧板262上设有第三通孔268，第三通孔268位于第一下挡点5后方，第二下挡点7安装在第三通孔268内，第二下挡点7由第二侧板262的外侧壁向外延伸凸出。当然，在其它实施例中，也可以是两个第二侧板262上各设有一个第三通孔268，每个第二侧板262的第三通孔268内安装有一个第二下挡点7，在此不作限定。
本实施例提供的汽车后排座椅1的安装顺序为：将汽车后排座椅1放入车身内，在安装后端装车螺栓时，此时第三通孔268内还未安装第二下挡点7，第一上挡点4能与第一下挡点5相抵靠，即汽车后排座椅1具有第一最大滑动行程，此时将汽车后排座椅1滑动至最前端，可方便地进入汽车后排座椅1的后部空间内安装后端装车螺栓。当后端装车螺栓安装完成后，在第三通孔268内安装第二下挡点7，第二下挡点7能与第二上挡点6相抵靠，即汽车后排座椅1具有第二最大滑动行程，由于第二最大滑动行程小于第一最大滑动行程，因此可以抑制住原来的第一最大滑动行程，即第二下挡点7与第二上挡点6相抵靠时，第一上挡点4与第一下挡点5之间还有一段距离，即第一上挡点4还未与第一下挡点5相抵靠。
本实施例的其它设置与第一实施例相同，在此不赘述。
第三实施例
如图11及图12所示，本申请第三实施例提供的汽车后排座椅1与第一实施例大致相同，不同点在于本实施例中上滑轨21不包括上支架24，下滑轨22不包括下支架26。同时本实施例中第一上挡点4、第一下挡点5、第二上挡点6和第二下挡点7的形式及安装位置与第一实施例不同。
具体地，在本实施例中，上滑轨21包括上滑轨本体23，下滑轨22包括下滑轨本体25。上滑轨本体23直接与坐垫12的底部固定连接，下滑轨本体25直接与汽车的车身固定连接，上滑轨本体23可沿着下滑轨本体25滑动。
上滑轨本体23为倒“U”形结构，上滑轨本体23包括第一顶壁231和从第一顶壁231的相对两侧分别向下延伸形成的两个第一侧壁232，第一侧壁232的底部向外翻折形成第一外翻边233。
下滑轨本体25为“U”形结构，下滑轨本体25包括第一底壁251和从第一底壁251的相对两侧分别向上延伸形成的两个第一侧板252，第一侧板252的顶部向内翻折形成第一内翻边253。
在本实施例中，第一上挡点4凸出形成于第一侧壁232，第二上挡点6安装在第一侧壁232上且位于第一上挡点4前方，第一下挡点5和第二下挡点7为同一挡点且凸出形成于第一侧板252的顶部。
具体地，在本实施例中，第一上挡点4由第一侧壁232的外表面向外延伸凸出，第一下挡点5和第二下挡点7由第一侧板252的顶部向上延伸凸出。
在本实施例中，第一上挡点4只设置在其中一个第一侧壁232上，第一下挡点5和第二下挡点7只设置在对应的一个第一侧板252上。当然，在其它实施例中，第一上挡点4可以同时设置在两个第一侧壁232上，第一下挡点5和第二下挡点7可以同时设置在两个第一侧板252上，在此不作限定。
在本实施例中，第一侧壁232上设有第四通孔236，第四通孔236位于第一上挡点4前方，第二上挡点6安装在第四通孔236内，第二上挡点6由第一侧壁232的外表面向外延伸凸出。
在本实施例中，只在第一上挡点4所在一侧的第一侧壁232上设置第四通孔236。当然，在其它实施例中，也可以是两个第一侧壁232上均设有第四通孔236，每个第一侧壁232的第四通孔236内安装一个第二上挡点6，在此不作限定。
本实施例提供的汽车后排座椅1的安装顺序为：将汽车后排座椅1放入车身内，在安装后端装车螺栓时，此时第四通孔236内还未安装第二上挡点6，第一上挡点4能与第一下挡点5相抵靠，即汽车后排座椅1具有第一最大滑动行程，此时将汽车后排座椅1滑动至最前端，可方便地进入汽车后排座椅1的后部空间内安装后端装车螺栓。当后端装车螺栓安装完成后，在第四通孔236内安装第二上挡点6，第二上挡点6能与第二下挡点7相抵靠，即汽车后排座椅1具有第二最大滑动行程，由于第二最大滑动行程小于第一最大滑动行程，因此可以抑制住原来的第一最大滑动行程，即第二下挡点7与第二上挡点6相抵靠时，第一上挡点4与第一下挡点5之间还有一段距离，即第一上挡点4还未与第一下挡点5相抵靠。
本实施例相较于第一实施例结构更简单，零件更少，成本更低，安装更简便。
本实施例的其它设置与第一实施例相同，在此不赘述。
第四实施例
如图13及图14所示，本申请第四实施例提供的汽车后排座椅1与第三实施例大致相同，上滑轨21也不包括上支架24，下滑轨22也不包括下支架26，不同点在于上滑轨本体23及下滑轨本体25的结构不同，同时第一上挡点4、第一下挡点5、第二上挡点6和第二下挡点7的形式及安装位置不同。
具体地，在本实施例中，上滑轨21包括上滑轨本体23，下滑轨22包括下滑轨本体25。上滑轨本体23直接与坐垫12的底部固定连接，下滑轨本体25直接与汽车的车身固定连接，上滑轨本体23可沿着下滑轨本体25滑动。
上滑轨本体23为倒“U”形结构，上滑轨本体23包括第一顶壁231和从第一顶壁231的相对两侧分别向下延伸形成的两个第一侧壁232，第一侧壁232的底部向外翻折形成第一外翻边233。
下滑轨本体25为“U”形结构，下滑轨本体25包括第一底壁251和从第一底壁251的相对两侧分别向上延伸形成的两个第一侧板252，第一侧板252的顶部向内翻折形成第一内翻边253。
在本实施例中，第一外翻边233上形成有台阶235，第一上挡点4和第二上挡点6为同一挡点且由台阶235形成，第一下挡点5从第一侧板252的内侧凸出形成，第二下挡点7安装在第一侧板252上且位于第一下挡点5后方。
具体地，在本实施例中，第一外翻边233的前半部分的高度小于后半部分的高度形成台阶235。第一下挡点5为第一侧板252上冲压形成的与第一侧板252一体的切割片，第一下挡点5朝向第一侧板252的内侧倾斜弯折。
在本实施例中，第一下挡点5只设置在其中一个第一侧板252上。当然，在其它实施例中，也可以是两个第一侧板252上均设有第一下挡点5，在此不作限定。
在本实施例中，其中一个第一侧板252上设有第五通孔257，第五通孔257位于第一下挡点5后方，第二下挡点7安装在第五通孔257内，第二下挡点7由第一侧板252的内侧壁向内延伸凸出。当然，在其它实施例中，也可以是两个第一侧板252上均设有第五通孔257，每个第一侧板252的第五通孔257内安装一个第二下挡点7，在此不作限定。
本实施例提供的汽车后排座椅1的安装顺序为：将汽车后排座椅1放入车身内，在安装后端装车螺栓时，此时第五通孔257内还未安装第二下挡点7，台阶235能与第一下挡点5相抵靠，即汽车后排座椅1具有第一最大滑动行程，此时将汽车后排座椅1滑动至最前端，可方便地进入汽车后排座椅1的后部空间内安装后端装车螺栓。当后端装车螺栓安装完成后，在第五通孔257内安装第二下挡点7，第二下挡点7能与台阶235相抵靠，即汽车后排座椅1具有第二最大滑动行程，由于第二最大滑动行程小于第一最大滑动行程，因此可以抑制住原来的第一最大滑动行程，即第二下挡点7与第二上挡点6相抵靠时，第一上挡点4与第一下挡点5之间还有一段距离，即第一上挡点4还未与第一下挡点5相抵靠。
本实施例的其它设置与第三实施例相同，在此不赘述。
第五实施例
如图15及图16所示，本申请第五实施例提供的汽车后排座椅1与第三实施例大致相同，上滑轨21也不包括上支架24，下滑轨22也不包括下支架26，不同点在于第一上挡点4、第一下挡点5、第二上挡点6和第二下挡点7的安装位置不同。
具体地，在本实施例中，上滑轨21包括上滑轨本体23，下滑轨22包括下滑轨本体25。上滑轨本体23直接与坐垫12的底部固定连接，下滑轨本体25直接与汽车的车身固定连接，上滑轨本体23可沿着下滑轨本体25滑动。
上滑轨本体23为倒“U”形结构，上滑轨本体23包括第一顶壁231和从第一顶壁231的相对两侧分别向下延伸形成的两个第一侧壁232，第一侧壁232的底部向外翻折形成第一外翻边233。
下滑轨本体25为“U”形结构，下滑轨本体25包括第一底壁251和从第一底壁251的相对两侧分别向上延伸形成的两个第一侧板252，第一侧板252的顶部向内翻折形成第一内翻边253。
在本实施例中，第一上挡点4和第二上挡点6均设于第一顶壁231且第二上挡点6位于第一上挡点4前方，第一下挡点5和第二下挡点7为同一挡点且设于第一底壁251。
在本实施例中，第一顶壁231上从后至前依次排列设有第六通孔237和第七通孔238，第一上挡点4设置在第六通孔237内，第二上挡点6安装在第七通孔238内，第一上挡点4和第二上挡点6均由第一顶壁231向下延伸凸出。第一底壁251上设有第八通孔258，第八通孔258位于第六通孔237和第七通孔238前方，第一下挡点5设置在第八通孔258内，第一下挡点5由第一底壁251向上延伸凸出。
优选地，第六通孔237、第七通孔238和第八通孔258均位于上滑轨本体23滑动方向的同一轴线上。
本实施例提供的汽车后排座椅1的安装顺序为：将汽车后排座椅1放入车身内，在安装后端装车螺栓时，此时第七通孔238内还未安装第二上挡点6，第一上挡点4能与第一下挡点5相抵靠，即汽车后排座椅1具有第一最大滑动行程，此时将汽车后排座椅1滑动至最前端，可方便地进入汽车后排座椅1的后部空间内安装后端装车螺栓。当后端装车螺栓安装完成后，在第七通孔238内安装第二上挡点6，第二下挡点7能与第二上挡点6相抵靠，即汽车后排座椅1具有第二最大滑动行程，由于第二最大滑动行程小于第一最大滑动行程，因此可以抑制住原来的第一最大滑动行程，即第二下挡点7与第二上挡点6相抵靠时，第一上挡点4与第一下挡点5之间还有一段距离，即第一上挡点4还未与第一下挡点5相抵靠。
本实施例的其它设置与第三实施例相同，在此不赘述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
 工业实用性
本申请提供的汽车后排座椅，通过在上滑轨上设置第一上挡点，在下滑轨上设置第一下挡点，使得第一上挡点在上滑轨滑动时能与第一下挡点相抵靠，第一上挡点与第一下挡点之间形成第一最大滑动行程，在汽车座椅位于该第一最大滑动行程时，能够轻易地进入汽车座椅的后部空间内安装后端装车螺栓；在后端装车螺栓安装完成后，通过安装第二下挡点，即可在第二上挡点与第二下挡点之间形成第二最大滑动行程。由于第一下挡点与第一上挡点之间的距离大于第二下挡点与第二上挡点之间的距离，故第二最大滑动行程小于第一最大滑动行程，即缩短了汽车座椅的最大滑动行程，在平时使用汽车座椅时更安全，同时还可以通过调整第二下挡点的安装位置来改变第二最大滑动行程，以适用于不同的车型。
本申请提供的汽车后排座椅结构简单，安装方便，既节省了零件的安装工时，又减小了零件占用空间，同时零件成本低，降低了生产成本。

Claims (13)

  1. 一种汽车后排座椅，包括坐垫（12），所述坐垫（12）下方设有滑动机构（2），所述滑动机构（2）包括上滑轨（21）和下滑轨（22），所述上滑轨（21）可沿着所述下滑轨（22）滑动，其特征在于：
    所述上滑轨（21）设有第一上挡点（4）和第二上挡点（6），所述下滑轨（22）设有第一下挡点（5）和第二下挡点（7），所述第一下挡点（5）与所述第一上挡点（4）前后相对应且所述第一下挡点（5）位于所述第一上挡点（4）的前方，所述第二下挡点（7）与所述第二上挡点（6）前后相对应且所述第二下挡点（7）位于所述第二上挡点（6）的前方，所述第二上挡点（6）与所述第二下挡点（7）之间的距离小于所述第一上挡点（4）与所述第一下挡点（5）之间的距离；
    当所述上滑轨（21）沿着所述下滑轨（22）滑动且所述第二上挡点（6）和所述第二下挡点（7）其中之一还未安装到所述滑动机构（2）上时，所述上滑轨（21）带动所述第一上挡点（4）朝向所述第一下挡点（5）移动，当所述第一上挡点（4）与所述第一下挡点（5）相抵靠时，所述汽车后排座椅（1）具有第一最大滑动行程；
    当所述上滑轨（21）沿着所述下滑轨（22）滑动且所述第二上挡点（6）和所述第二下挡点（7）均安装到所述滑动机构（2）上时，所述上滑轨（21）带动所述第二上挡点（6）朝向所述第二下挡点（7）移动，当所述第二上挡点（6）与所述第二下挡点（7）相抵靠时，所述汽车后排座椅（1）具有第二最大滑动行程；
    其中，所述第二最大滑动行程小于所述第一最大滑动行程。
  2. 如权利要求1所述的汽车后排座椅，其特征在于，所述上滑轨（21）包括上滑轨本体（23）和上支架（24），所述上支架（24）与所述上滑轨本体（23）固定连接且所述上支架（24）位于所述上滑轨本体（23）上方；
    所述下滑轨（22）包括下滑轨本体（25）和下支架（26），所述下支架（26）与所述下滑轨本体（25）固定连接且所述下支架（26）位于所述下滑轨本体（25）下方。
  3. 如权利要求2所述的汽车后排座椅，其特征在于，所述上滑轨本体（23）包括第一顶壁（231）和从所述第一顶壁（231）的相对两侧分别向下延伸形成的两个第一侧壁（232），所述第一侧壁（232）的底部向外翻折形成第一外翻边（233）；
    所述下滑轨本体（25）包括第一底壁（251）和从所述第一底壁（251）的相对两侧分别向上延伸形成的两个第一侧板（252），所述第一侧板（252）的顶部向内翻折形成第一内翻边（253）；
    所述上支架（24）包括第二顶壁（241）和从所述第二顶壁（241）的相对两侧分别向下延伸形成的两个第二侧壁（242），所述第二侧壁（242）的底部向内翻折形成第二内翻边（243）；
    所述下支架（26）包括第二底壁（261）和从所述第二底壁（261）的相对两侧分别向上延伸形成的两个第二侧板（262），所述第二侧板（262）的顶部向外翻折形成第二外翻边（263）。
  4. 如权利要求2所述的汽车后排座椅，其特征在于，所述第一上挡点（4）设于所述上支架（24），所述第二上挡点（6）设于所述上滑轨本体（23），所述第一下挡点（5）设于所述下支架（26），所述第二下挡点（7）设于所述下滑轨本体（25）。
  5. 如权利要求3所述的汽车后排座椅，其特征在于，所述第一上挡点（4）由所述第二内翻边（243）的前端部形成，所述第一下挡点（5）凸出形成于所述第二外翻边（263）的前端，所述第二上挡点（6）安装在所述第一顶壁（231）上，所述第二下挡点（7）安装在所述第一底壁（251）上。
  6. 如权利要求2所述的汽车后排座椅，其特征在于，所述第一上挡点（4）和所述第二上挡点（6）均设于所述上支架（24），所述第一下挡点（5）和所述第二下挡点（7）均设于所述下支架（26）。
  7. 如权利要求3所述的汽车后排座椅，其特征在于，所述第一上挡点（4）和所述第二上挡点（6）为同一挡点且由所述第二内翻边（243）的前端部形成，所述第一下挡点（5）凸出形成于所述第二外翻边（263）的前端，所述第二下挡点（7）安装在所述第二侧板（262）上且位于所述第一下挡点（5）的后方。
  8. 如权利要求3所述的汽车后排座椅，其特征在于，所述第二内翻边（243）与所述第二外翻边（263）相互扣合且所述第二内翻边（243）可沿着所述第二外翻边（263）滑动；
    所述第一外翻边（233）与所述第一内翻边（253）相互扣合且所述第一外翻边（233）可沿着所述第一内翻边（253）滑动。
  9. 如权利要求1所述的汽车后排座椅，其特征在于，所述上滑轨（21）包括上滑轨本体（23），所述下滑轨（22）包括下滑轨本体（25）；
    所述上滑轨本体（23）包括第一顶壁（231）和从所述第一顶壁（231）的相对两侧分别向下延伸形成的两个第一侧壁（232），所述第一侧壁（232）的底部向外翻折形成第一外翻边（233）；
    所述下滑轨本体（25）包括第一底壁（251）和从所述第一底壁（251）的相对两侧分别向上延伸形成的两个第一侧板（252），所述第一侧板（252）的顶部向内翻折形成第一内翻边（253）。
  10. 如权利要求9所述的汽车后排座椅，其特征在于，所述第一上挡点（4）凸出形成于所述第一侧壁（232），所述第二上挡点（6）安装在所述第一侧壁（232）上且位于所述第一上挡点（4）前方，所述第一下挡点（5）和所述第二下挡点（7）为同一挡点且凸出形成于所述第一侧板（252）的顶部。
  11. 如权利要求9所述的汽车后排座椅，其特征在于，所述第一外翻边（233）上形成有台阶（235），所述第一上挡点（4）和所述第二上挡点（6）为同一挡点且由所述台阶（235）形成，所述第一下挡点（5）从所述第一侧板（252）的内侧凸出形成，所述第二下挡点（7）安装在所述第一侧板（252）上且位于所述第一下挡点（5）后方。
  12. 如权利要求9所述的汽车后排座椅，其特征在于，所述第一上挡点（4）和所述第二上挡点（6）均设于所述第一顶壁（231）且所述第二上挡点（6）位于所述第一上挡点（4）前方，所述第一下挡点（5）和所述第二下挡点（7）为同一挡点且设于所述第一底壁（251）。
  13. 一种汽车，其特征在于，包括如权利要求1-12任一项所述的汽车后排座椅。
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