CN113954708A - Automobile seat backrest - Google Patents
Automobile seat backrest Download PDFInfo
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- CN113954708A CN113954708A CN202111435255.7A CN202111435255A CN113954708A CN 113954708 A CN113954708 A CN 113954708A CN 202111435255 A CN202111435255 A CN 202111435255A CN 113954708 A CN113954708 A CN 113954708A
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- backrest framework
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- framework
- backrest
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000009941 weaving Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
- B60N2/3029—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by composed movement
- B60N2/3031—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by composed movement in a longitudinal-vertical plane
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- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3081—Seats convertible into parts of the seat cushion or the back-rest or disapppearing therein, e.g. for children
- B60N2/3084—Disappearing in a recess of the back-rest
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- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3088—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link
- B60N2/309—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link rods
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- 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
- B60N2/68—Seat frames
- B60N2/682—Joining means
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- 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
- B60N2/68—Seat frames
- B60N2/688—Particular seat belt attachment and guiding
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- 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
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
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- 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
- B60N2/80—Head-rests
- B60N2/882—Head-rests detachable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to an automobile seat backrest, wherein a backrest framework comprises an adult backrest framework and a child backrest framework arranged on the inner side of the adult backrest framework, a group of connecting pieces are arranged between the left side and the right side of the child backrest framework and the adult backrest framework, each group of connecting pieces comprises two connecting rods which are parallel to each other, and two ends of each connecting rod are respectively in rotating connection with the adult backrest framework and the child backrest framework to form a four-bar mechanism; and a driving mechanism and a locking mechanism are arranged at the rotary connection position of any connecting rod and the adult backrest framework so as to drive the four-bar linkage mechanism to act and lock the posture of the four-bar linkage mechanism. In the invention, the four-bar mechanism is driven to drive the child backrest framework to move forwards to protrude out of the adult backrest framework or move backwards to overlap the adult backrest framework, so that the seat backrest has two forms to respectively meet the use requirements of children and adults.
Description
Technical Field
The invention belongs to the technical field of automobile seats, and particularly relates to an automobile seat backrest.
Background
At present, most seats in automobiles are ordinary automobile seats for adults. The size, shape and posture of the seat cushion and the backrest of the common automobile seat are designed for being suitable for adults, and the use requirements of children are difficult to meet; mainly because the backrest is wide, children are easy to move transversely, and especially when the vehicle is bent over, the children are in danger of sliding off the seat; the backrest is far away from the front edge of the cushion, the backrest has large backward leaning amplitude, children are difficult to lean against the cushion, and the comfort level is poor; in addition, the safety belt on the ordinary automobile seat is difficult to effectively restrain the body of the child, and the safety is poor.
Therefore, home cars or some cars often with children are equipped with child safety seats; the child safety seat also belongs to an automobile seat, at present, the child safety seat is mostly detachable, for example, the child safety seat in chinese patent No. cn202022306550.x needs to be additionally installed and stored; when the child safety seat is used, the child safety seat is installed on a common automobile seat, the installation is complicated, and potential safety hazards are brought to children when the child safety seat is installed by mistake; when the automobile seat is not used, the disassembly is troublesome and needs a certain storage space, and if the automobile seat is not disassembled, the automobile seat occupies the seat space in the automobile, so that part of seats cannot be effectively utilized. Therefore, the child safety seat is complicated to mount, use or dismount for storage, and has a high use cost, and therefore, it is required to design a car seat for both adults and children.
An integrated seat of Chinese patent CN202010084868.X and an electric integrated seat of Chinese patent CN202110251781.1 both disclose an integrated seat, the integrated seat is a foldable structure of the cushion part of the ordinary car seat, the upper layer of the cushion is unfolded backwards and used as the backrest of the child seat, the lower layer of the cushion can be lifted, and the unfolded lower layer of the cushion and the unfolded upper layer of the cushion are respectively used as the cushion and the backrest of the child seat; although the integrated seat can be used by adults and children together, the overall structure is complex, and the condition that fingers are injured by clamping is easy to occur when the integrated seat is used by children due to the fact that the cushion is of a layered folding structure, and the safety is poor; in addition, the original filler of cushion needs to all be divided into lower floor and upper strata, and the cushion texture is harder, no matter supply adult or children to use, its comfort level is all relatively poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the automobile seat backrest, solve the problem that the existing automobile seat backrest cannot meet the use requirements of adults and children at the same time, and achieve the effects of simple use and good comfort.
In order to solve the technical problems, the invention adopts the following technical scheme:
a car seat back comprises a back frame; the backrest framework comprises a child backrest framework and an adult backrest framework in a rectangular frame shape, the size of the child backrest framework is smaller than that of the adult backrest framework, and the child backrest framework is arranged on the inner side of the adult backrest framework;
a group of connecting pieces are arranged between the left side and the right side of the child backrest framework and the adult backrest framework, the two groups of connecting pieces are arranged right and left, each group of connecting pieces comprises two connecting rods which are vertically arranged at intervals and are parallel to each other, and two ends of each connecting rod are respectively and rotatably connected with the adult backrest framework and the child backrest framework through rotating shafts which are transversely arranged so that a four-bar mechanism is formed between the left side and the right side of the child backrest framework and the adult backrest framework;
and a driving mechanism and a locking mechanism are arranged at the rotary connection position of any connecting rod and the adult backrest framework so as to drive the four-bar linkage mechanism to act and lock the posture of the four-bar linkage mechanism.
Furthermore, the driving mechanism comprises a transmission gear arranged on the inner side of the adult backrest framework and an adjusting handle arranged on the outer side of the adult backrest framework, and a connecting shaft which transversely and movably penetrates through the adult backrest framework is connected between the transmission gear and the adjusting handle so as to enable the transmission gear and the adjusting handle to synchronously rotate;
the connecting rod corresponding to the driving mechanism is a sector plate, outer teeth are processed at one end of the sector plate, which is in an arc surface, and the sector plate faces the adult backrest framework, and the outer teeth on the sector plate are meshed with the transmission gear so as to drive the four-bar mechanism to act through rotating the adjusting handle.
Furthermore, the locking mechanism comprises an outer gear ring and an inner gear ring which are coaxial with the connecting shaft, the outer gear ring is fixedly arranged on the outer side of the adult backrest framework, the inner gear ring is fixedly arranged on one side of the adjusting handle facing the adult backrest framework, and the adjusting handle can move transversely to enable the inner gear ring to be meshed with the outer gear ring so as to lock the posture of the four-bar linkage mechanism.
Furthermore, the child backrest framework is also in a rectangular frame shape, and is bent by a steel pipe and connected end to form the rectangular frame shape; the adult backrest framework comprises an upper part, a lower part and a middle part, wherein the upper part and the lower part are both formed by bending steel pipes into a U shape, the U-shaped end parts of the upper part and the lower part are opposite, the middle part comprises two mounting plates which are right opposite to each other left, and the upper end and the lower end of each mounting plate are fixedly connected with the U-shaped end parts of the upper part and the lower part of the corresponding side respectively; the connecting shaft movably penetrates through the mounting plate.
Furthermore, one end of the connecting rod, which faces the child backrest framework, is rotatably connected with a fixed clamping seat through the rotating shaft, and the fixed clamping seat is connected with the child backrest framework in a buckling manner;
and a fixed rod is arranged between the two connecting rods in each group of connecting pieces, and two ends of the fixed rod are respectively and rotatably connected with the two corresponding connecting rods.
The headrest framework comprises two mounting rods which are transversely arranged at intervals and extend downwards to the outside of the headrest;
the upper ends of the adult backrest framework and the child backrest framework are fixedly connected with two mounting cylinders, and the two mounting rods can be inserted into the two mounting cylinders on the adult backrest framework or the child backrest framework one by one so as to adjust the position of the back cushion.
Furthermore, a backrest body is supported and fixed outside the adult backrest framework and the child backrest framework, and a child safety belt for fixing a child is further arranged on the backrest body.
Furthermore, a plurality of transverse supporting ribs are connected between the left side and the right side of the child backrest framework, and the supporting ribs are arranged at intervals along the vertical direction.
Compared with the prior art, the invention has the following beneficial effects:
1. in the four-bar linkage mechanism, the adult backrest framework serves as a fixed part, the child backrest framework serves as a movable part, and the two connecting bars can swing in a rotating mode so as to drive the child backrest framework to move forwards to protrude out of the adult backrest framework or move backwards to be overlapped and collected inside the adult backrest framework; as shown in fig. 4, the leaning requirements of the adult passengers are met under normal conditions; as shown in fig. 5, the adjusting handle is rotated to make the backrest frame of the child forwards protrude out of the backrest frame of the adult, and the backrest frame of the child makes the backrest body forwards protrude for the child to lean against; can meet the use requirements of children and adults respectively.
2. The four-bar mechanism is driven by the driving mechanism, and the posture is fixed by the locking mechanism, so that the distance between the child backrest framework and the adult backrest framework which protrudes forwards is adjustable, the use requirements of children of different ages can be met, and the four-bar mechanism has the advantages of simplicity in use, flexibility in adjustment and good comfort.
3. According to the invention, the mounting position of the back cushion can be adjusted according to the use requirement, and when a child uses the back cushion, the back cushion can be mounted on the child backrest framework to meet the requirements of the child for sitting posture and head protection; the automobile seat backrest is also provided with a four-point safety belt, so that the automobile seat backrest is convenient for children to use when in riding, and the riding safety of the children is improved.
Drawings
FIG. 1 is a perspective view A of a seat frame according to an embodiment;
FIG. 2 is a perspective view B of the seat frame according to the embodiment;
FIG. 3 is an enlarged schematic view at C of FIG. 2;
FIG. 4 is a schematic view illustrating an adult use state of a seat back for a vehicle according to an embodiment;
FIG. 5 is a schematic view illustrating a state in which a seat back of a car seat according to an embodiment is used by a child;
the child backrest comprises a child backrest framework 1, an adult backrest framework 2, an upper portion 21, a middle portion 22, a lower portion 23, a connecting rod 31, a sector plate 32, a rotating shaft 33, a fixing clamping seat 35, a fixing rod 36, a transmission gear 41, an adjusting handle 42, a headrest 5, an installation rod 51, an installation cylinder 52, a child safety belt 6, a textile belt 61, a buckle 62, a clamping seat 63, a safety belt connecting plate 64 and a backrest body 7.
Detailed Description
The following description of the embodiments of the present invention will be made in further detail with reference to the accompanying drawings, and for the sake of understanding, fig. 1, 2, 4 and 5 are shown in a complete form of a car seat.
Example (b):
referring to fig. 1 and 2, a car seat back comprises a back frame, the back frame comprises a child back frame 1 and an adult back frame 2 in a rectangular frame shape, the size of the child back frame 1 is smaller than that of the adult back frame 2, and the child back frame 1 is arranged on the inner side of the adult back frame 2;
a group of connecting pieces are arranged between the left side and the right side of the child backrest framework 1 and the adult backrest framework 2, the two groups of connecting pieces are arranged right and left, each group of connecting pieces comprises two connecting rods 31 which are vertically arranged at intervals and are parallel to each other, and two ends of each connecting rod 31 are respectively and rotatably connected with the adult backrest framework 2 and the child backrest framework 1 through rotating shafts 33 which are transversely arranged so that a four-link mechanism is formed between the left side and the right side of the child backrest framework 1 and the adult backrest framework 2;
and a driving mechanism and a locking mechanism are arranged at the rotary connection part of any connecting rod 31 and the adult backrest framework 2 so as to drive the four-bar linkage mechanism to act and lock the posture of the four-bar linkage mechanism.
In the invention, two sides of a child backrest framework 1 and an adult backrest framework 2 form a four-bar linkage mechanism through a group of connecting pieces respectively, in the four-bar linkage mechanism, the adult backrest framework 2 serves as a fixed piece, the child backrest framework 1 serves as a movable piece, and two connecting rods 31 can swing in a rotating way, so that the child backrest framework 1 is driven to move forwards to protrude out of the adult backrest framework 2 or move backwards to be overlapped and collected inside the adult backrest framework 2; after the backrest frame is provided with the backrest body 7, please refer to fig. 4, when the child backrest frame 1 is folded inside the adult backrest frame 2, the shape of the backrest body 7 is the same as that of a common car seat for an adult to lean against; referring to fig. 5, when the child backrest frame 1 protrudes forward from the adult backrest frame 2, the child backrest frame 1 protrudes forward from the backrest surface of the backrest body 7 for the child to lean against, and the protruding distance of the child backrest frame 1 can be adjusted by the four-bar mechanism to meet the leaning requirements of children with different sizes; according to the invention, the child backrest framework 1 capable of moving back and forth is arranged in the adult backrest framework 2, so that the leaning surface of the automobile seat backrest can change the shape aiming at adults and children, thereby solving the problem that the existing automobile seat backrest can not meet the use requirements of adults and children at the same time, and having the effects of simple use, flexible adjustment and good comfort.
Referring to fig. 1-3, in the present embodiment, in order to conveniently drive the four-bar linkage mechanism to drive the child backrest frame 1 to move back and forth, the driving mechanism is as follows: the driving mechanism comprises a transmission gear 41 arranged on the inner side of the adult backrest framework 2 and an adjusting handle 42 arranged on the outer side of the adult backrest framework 2, and a connecting shaft (not shown in the figure) transversely and movably penetrating through the adult backrest framework 2 is connected between the transmission gear 41 and the adjusting handle 42 so as to enable the transmission gear 41 and the adjusting handle 42 to synchronously rotate;
the connecting rod 31 corresponding to the driving mechanism is a sector plate 32, one end of the sector plate 32 in an arc surface is processed with external teeth and faces the adult backrest framework 2, and the external teeth on the sector plate 32 are meshed with the transmission gear 41; for easy understanding, please refer to fig. 3, that is, the connecting rod 31 corresponding to the driving mechanism is replaced by a sector plate 32, and both ends of the sector plate 32 are still respectively connected with the child backrest framework 1 and the adult backrest framework 2 through a rotating shaft 33 in a rotating manner, so as to ensure the effectiveness of the four-bar linkage;
therefore, when the shape of the leaning surface of the backrest of the automobile seat needs to be changed so as to be suitable for adults or children, the four-bar mechanism can be driven to act by rotating the adjusting handle 42, and the backrest framework 1 of the children is driven to move forwards and backwards.
Further, for locking four-bar linkage's state, make children's back skeleton 1 can bear the backward power when the passenger leans on, especially when children's back skeleton 1 is forward protrusion in adult back skeleton 2, the backward power that children's back skeleton 1 receives is great, and the locking mechanism that this embodiment adopted is as follows: the locking mechanism comprises an outer gear ring (not shown in the figure) and an inner gear ring (not shown in the figure) which are coaxial with the connecting shaft, the outer gear ring is fixedly arranged on the outer side of the adult backrest framework 2, the inner gear ring is fixedly arranged on one side, facing the adult backrest framework 2, of the adjusting handle 42, and the adjusting handle 42 can move transversely to enable the inner gear ring to be meshed with the outer gear ring so as to lock the posture of the four-bar mechanism.
Thus, when the position of the child backrest frame 1 needs to be adjusted by rotating the adjusting handle 42 through the four-bar linkage, the adjusting handle 42 can be pulled for a distance in the direction away from the backrest frame, so that the inner gear ring on the adjusting handle 42 is separated from the outer gear ring on the adult backrest frame 2, and the adjusting handle 42 is smoothly rotated; after the adjustment is finished, the adjusting handle 42 is pulled for a certain distance towards the direction close to the backrest framework, so that the inner gear ring on the adjusting handle 42 is meshed and connected with the outer gear ring on the adult backrest framework 2, the adjusting handle 42 is limited to rotate freely, and the position of the child backrest framework 1 is fixed; other locking mechanisms, such as a ratchet mechanism, may also be used, and are not limited in this regard.
Further, referring to fig. 1 and 2, the child backrest frame 1 is also rectangular frame-shaped, and the child backrest frame 1 is bent by a steel pipe and connected end to form a rectangular frame-shape; the adult backrest framework 2 comprises an upper part 21, a lower part 23 and a middle part 22, wherein the upper part 21 and the lower part 23 are both formed by bending steel pipes into a U shape, the U-shaped end parts of the upper part 21 and the lower part 23 are opposite, the middle part 22 comprises two mounting plates which are right opposite to each other left, and the upper end and the lower end of each mounting plate are respectively fixedly connected with the U-shaped end parts of the upper part 21 and the lower part 23 on the corresponding side; the connecting shaft movably penetrates through the mounting plate.
Therefore, the child backrest framework 1 is more convenient to process and manufacture and has better structural strength; adult's back skeleton 2 comprises triplex, and the components of a whole that can function independently is made simpler, and accessible welding links to each other during the combination, and two relative mounting panels can provide better installation basis for connecting rod 31, actuating mechanism and locking mechanism.
Further, referring to fig. 1 and fig. 2, one end of the connecting rod 31 facing the child backrest frame 1 is rotatably connected with a fixed clamping seat 35 through a rotating shaft 33, and the fixed clamping seat 35 is connected with the child backrest frame 1 in a buckling manner;
a fixed rod 36 is arranged between the two connecting rods 31 in each group of connecting pieces, and two ends of the fixed rod 36 are respectively and rotatably connected with the two corresponding connecting rods 31. During implementation, two ends of the fixing rod 36 are respectively rotatably connected with the ends of the two corresponding connecting rods 31, that is, the end of the fixing rod 36, the end of the connecting rod 31 and the fixing clamping seat 35 are rotatably connected at one point, and the rotating connection is realized through the rotating shaft 33, so that the number of connecting points is reduced, and the assembly is facilitated.
Therefore, during assembly, the fixing rod 36 is connected between the two connecting rods 31 to form a four-bar mechanism, the effectiveness of the four-bar mechanism can be ensured only by controlling the length of the fixing rod 36, and then the child backrest framework 1 is fixedly connected through the fixing clamping seat 35; the holes for rotating connection or the rotating shafts are not required to be formed in the child backrest framework 1, the manufacturing is simpler, the connection points of the child backrest framework 1 and the fixed clamping seat 35 can be adjusted up and down according to design requirements, and the assembly is more flexible.
Further, referring to fig. 1, the headrest further includes a headrest 5, a headrest framework (not shown in the figure) is provided in the headrest 5, and the headrest framework includes two mounting rods 51 which are transversely spaced and extend downward to the outside of the headrest 5;
the upper ends of the adult backrest framework 2 and the child backrest framework 1 are fixedly connected with two mounting cylinders 52, and the two mounting rods 51 can be downwards inserted into the two mounting cylinders 52 on the adult backrest framework 2 or the child backrest framework 1 one by one.
Thus, the position of the headrest 5 can be changed according to the shape of the automobile seat back, and referring to fig. 4, when the automobile seat back is used by an adult, two mounting rods 51 of the headrest 5 are inserted into two mounting tubes 52 of the adult back frame 2, so that the height of the headrest 5 is suitable for the adult; referring to fig. 5, when the car seat back is used by a child, two mounting rods 51 of the headrest 5 are inserted into two mounting tubes 52 of the child back frame 1, so that the height of the headrest 5 is suitable for the child; thereby the automobile seat backrest has better use comfort.
In the present embodiment, please refer to fig. 1, 4 and 5, the upper end of the child backrest frame 1 is bent and inclined backwards; like this, can make back cushion 5 install when children back skeleton 1 with back cushion 5 install the state when adult back skeleton 2 unanimous, when avoiding back cushion 5 to install on children back skeleton 1, the position of back cushion 5 is too before leaning on, influences the comfort level of using.
Further, referring to fig. 5, a backrest body 7 is supported and fixed outside the adult backrest frame 2 and the child backrest frame 1, and a child safety belt 6 for fixing a child is further disposed on the backrest body 7.
In this embodiment, child safety belt 6 is four point type safety belts, including two weaving bands 61, two weaving bands 61 are parallel to each other and vertically locate outside backrest body 7, two weaving bands 61 are located between child backrest skeleton 1's both sides, be equipped with buckle 62 on weaving band 61, be equipped with cassette 63 on another weaving band 61, during the use, two weaving bands 61 and the space between the backrest are passed respectively to child's both hands, then be connected buckle 62 and cassette 63, can form effectual constraint to children, improve the security that children took.
Referring to fig. 1 and 5, in order to conveniently arrange the child seat belt 6, two seat belt connecting plates 64 are welded to the upper end of the adult back frame 2 and are spaced left and right, when the child seat belt 6 is installed, one end of each of the two textile belts 61 is fixedly connected with the two seat belt connecting plates 64 one by one, and the other end of each of the two textile belts 61 is connected with a seat belt retractor (not shown) and is fixedly arranged at the lower end of the adult back frame 2.
Furthermore, a plurality of transverse support ribs (not shown in the figure) are connected between the left side and the right side of the child backrest framework 1, and the plurality of support ribs are arranged at intervals along the vertical direction.
Thus, the support rib provides a support force for the backrest body 7, so that the backrest body 7 is prevented from collapsing backwards to influence the leaning comfort when leaning; meanwhile, the structural strength of the child backrest framework 1 is better.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. A car seat back comprises a back frame; the method is characterized in that: the backrest framework comprises a child backrest framework and an adult backrest framework in a rectangular frame shape, the size of the child backrest framework is smaller than that of the adult backrest framework, and the child backrest framework is arranged on the inner side of the adult backrest framework;
a group of connecting pieces are arranged between the left side and the right side of the child backrest framework and the adult backrest framework, the two groups of connecting pieces are arranged right and left, each group of connecting pieces comprises two connecting rods which are vertically arranged at intervals and are parallel to each other, and two ends of each connecting rod are respectively and rotatably connected with the adult backrest framework and the child backrest framework through rotating shafts which are transversely arranged so that a four-bar mechanism is formed between the left side and the right side of the child backrest framework and the adult backrest framework;
and a driving mechanism and a locking mechanism are arranged at the rotary connection position of any connecting rod and the adult backrest framework so as to drive the four-bar linkage mechanism to act and lock the posture of the four-bar linkage mechanism.
2. A seat back for a vehicle as defined in claim 1, wherein: the driving mechanism comprises a transmission gear arranged on the inner side of the adult backrest framework and an adjusting handle arranged on the outer side of the adult backrest framework, and a connecting shaft which transversely and movably penetrates through the adult backrest framework is connected between the transmission gear and the adjusting handle so as to enable the transmission gear and the adjusting handle to synchronously rotate;
the connecting rod corresponding to the driving mechanism is a sector plate, outer teeth are processed at one end of the sector plate, which is in an arc surface, and the sector plate faces the adult backrest framework, and the outer teeth on the sector plate are meshed with the transmission gear so as to drive the four-bar mechanism to act through rotating the adjusting handle.
3. A seat back for a vehicle as defined in claim 2, wherein: the locking mechanism comprises an outer gear ring and an inner gear ring which are coaxial with the connecting shaft, the outer gear ring is fixedly arranged on the outer side of the adult backrest framework, the inner gear ring is fixedly arranged on one side of the adjusting handle facing the adult backrest framework, and the adjusting handle can move transversely to enable the inner gear ring to be meshed with the outer gear ring so as to lock the posture of the four-bar mechanism.
4. A seat back for a vehicle as defined in claim 3, wherein: the child backrest framework is also in a rectangular frame shape, and is bent by a steel pipe and connected end to form the rectangular frame shape; the adult backrest framework comprises an upper part, a lower part and a middle part, wherein the upper part and the lower part are both formed by bending steel pipes into a U shape, the U-shaped end parts of the upper part and the lower part are opposite, the middle part comprises two mounting plates which are right opposite to each other left, and the upper end and the lower end of each mounting plate are fixedly connected with the U-shaped end parts of the upper part and the lower part of the corresponding side respectively; the connecting shaft movably penetrates through the mounting plate.
5. A seat back for a vehicle as defined in claim 1, wherein: one end of the connecting rod, which faces the child backrest framework, is rotatably connected with a fixed clamping seat through the rotating shaft, and the fixed clamping seat is connected with the child backrest framework in a buckling manner;
and a fixed rod is arranged between the two connecting rods in each group of connecting pieces, and two ends of the fixed rod are respectively and rotatably connected with the two corresponding connecting rods.
6. A seat back for a vehicle as defined in claim 1, wherein: the headrest framework comprises two mounting rods which are transversely arranged at intervals and extend downwards to the outside of the headrest;
the upper ends of the adult backrest framework and the child backrest framework are fixedly connected with two mounting cylinders, and the two mounting rods can be inserted into the two mounting cylinders on the adult backrest framework or the child backrest framework one by one so as to adjust the position of the back cushion.
7. A seat back for a vehicle as defined in claim 1, wherein: the adult backrest framework and the child backrest framework are supported and fixed with a backrest body, and a child safety belt for fixing a child is further arranged on the backrest body.
8. A seat back for a vehicle as defined in claim 1, wherein: still be connected with a plurality of horizontal brace rods between the left and right sides of children's back skeleton, a plurality of brace rods set up along vertical interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435255.7A CN113954708A (en) | 2021-11-29 | 2021-11-29 | Automobile seat backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435255.7A CN113954708A (en) | 2021-11-29 | 2021-11-29 | Automobile seat backrest |
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| Publication Number | Publication Date |
|---|---|
| CN113954708A true CN113954708A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111435255.7A Pending CN113954708A (en) | 2021-11-29 | 2021-11-29 | Automobile seat backrest |
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| CN (1) | CN113954708A (en) |
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|---|---|---|---|---|
| JPS5887632U (en) * | 1981-12-09 | 1983-06-14 | マツダ株式会社 | Vehicle seat with child seat |
| US5803543A (en) * | 1996-05-17 | 1998-09-08 | Ekkehard Grimm | Child's seat for mounting on a standard seat for adults |
| GB2468647A (en) * | 2009-03-16 | 2010-09-22 | Nissan Motor Mfg | Integrated child restraint system for vehicles |
| CN102512013A (en) * | 2011-12-13 | 2012-06-27 | 上海理工大学 | Angle adjuster |
| CN104709125A (en) * | 2015-01-22 | 2015-06-17 | 上海延锋江森座椅有限公司 | Integrated child automobile seat with side protection and lifting seat cushion |
| CN210881748U (en) * | 2019-08-07 | 2020-06-30 | 上海艾缔亚汽车技术有限公司 | Connecting rod type storage seat for vehicle |
| CN213228395U (en) * | 2020-09-27 | 2021-05-18 | 安徽安凯汽车股份有限公司 | Adjustable safety door seat assembly |
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2021
- 2021-11-29 CN CN202111435255.7A patent/CN113954708A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5887632U (en) * | 1981-12-09 | 1983-06-14 | マツダ株式会社 | Vehicle seat with child seat |
| US5803543A (en) * | 1996-05-17 | 1998-09-08 | Ekkehard Grimm | Child's seat for mounting on a standard seat for adults |
| GB2468647A (en) * | 2009-03-16 | 2010-09-22 | Nissan Motor Mfg | Integrated child restraint system for vehicles |
| CN102512013A (en) * | 2011-12-13 | 2012-06-27 | 上海理工大学 | Angle adjuster |
| CN104709125A (en) * | 2015-01-22 | 2015-06-17 | 上海延锋江森座椅有限公司 | Integrated child automobile seat with side protection and lifting seat cushion |
| CN210881748U (en) * | 2019-08-07 | 2020-06-30 | 上海艾缔亚汽车技术有限公司 | Connecting rod type storage seat for vehicle |
| CN213228395U (en) * | 2020-09-27 | 2021-05-18 | 安徽安凯汽车股份有限公司 | Adjustable safety door seat assembly |
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Application publication date: 20220121 |