Folding seat with cushion folding function
By designing a folded seat with cushion folding, the seat is compounded by using the locking mechanism and hinge plate structure, the problem of poor comfort in existing seats when increasing the storage space in the car is solved, and the flexibility and comfort of the seat are improved.
Patent Information
- Application Number
- CN202420806709.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the way of increasing the storage space of the car, existing car seats mainly rely on the backrest to be placed flat, resulting in less weight being borne when the backrest is placed flat, and the weight being borne by the body floor in the folded cushion is increased, but the design space is limited, resulting in thinner cushion and backrest thickness and poorer comfort.
A folding seat with cushion folding is designed. By installing a bracket on the car, the locking mechanism and hinge plate structure are used to enable the cushion and backrest to be placed flat and folded separately, and the unlocking handle is used to achieve mutual conversion, increasing the seat's composite movement ability and improving comfort.
The seats are converted to each other in the folding state of the backrest and the folding cushion, avoiding the reduction of the thickness of the folding function of the seat and the backrest, improving the comfort of the seat, and increasing the efficiency of the space utilization in the car.
Smart Images
Figure CN222859271U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile seats, and in particular relates to a foldable seat with a foldable seat cushion. Background Art
[0002] Car functions are becoming more and more diverse, and more usage scenarios can be realized. For this reason, seats need to have more functions. The functions of folding seats and folding backrests can increase the space inside the car, store more items in the car, and realize the diversification of the space inside the car. At present, most seats increase the storage space in the car mainly by laying the backrest flat, so it is considered to increase the seat cushion to fold and increase the usage scenarios. Due to the structure of the seat, the weight that the seat can bear when the backrest is laid flat is less. However, when the seat cushion is folded, the weight that the body floor can bear is greatly increased, and the carpet is more resistant to dirt and lower in height, which is convenient for storing heavy objects. Due to the limited design space and the need for the rotation mechanism layout, the seat cushion and backrest of the folding seat are thinner, and their comfort is often poor. Utility Model Content
[0003] In view of this, the purpose of the utility model is to provide a folding seat with a foldable seat cushion, which can be used to store heavy objects and increase the space in the vehicle; at the same time, it can also take into account the folding function of the seat cushion and the flattening function of the backrest, so as to realize more usage forms; and increase the comfort of the seat on the basis of satisfying the folding function.
[0004] In order to achieve the above object, the utility model provides the following technical solutions:
[0005] The utility model provides a folding seat with a foldable seat cushion, which is installed on a vehicle body through a seat mounting bracket, the seat comprising a backrest assembly and a seat cushion assembly rotatably connected to the backrest assembly through a locking mechanism, the locking mechanism comprising a limiting tooth plate, the limiting tooth plate being provided with a first locking tooth and a second locking tooth, a locking plate being rotatably mounted on the seat cushion assembly, the locking plate being provided with a third locking tooth that can cooperate with both the first locking tooth and the second locking tooth, the seat cushion assembly being limited in position when being flattened when the seat cushion assembly is rotated so that the locking plate cooperates with the first locking tooth, and the seat cushion assembly being limited in position when being folded when the seat cushion assembly is rotated so that the locking plate cooperates with the second locking tooth.
[0006] Furthermore, a seat cushion hinge plate is fixedly installed on the seat cushion assembly, a first guide groove is provided on the seat cushion hinge plate, a backrest hinge plate is fixedly installed on the backrest assembly, a backrest rotation pin is provided on the backrest hinge plate, a second guide groove is provided on the seat mounting bracket, and the backrest rotation pin is limitedly slidably installed in the first guide groove and the second guide groove.
[0007] Furthermore, a locking plate pin is provided on the seat cushion hinge plate, and the locking plate is rotatably mounted on the locking plate pin.
[0008] Furthermore, a locking paddle is rotatably connected to the seat hinge plate, a locking groove cooperating with the locking paddle is provided on the locking paddle, and the locking paddle is installed between the locking paddle and the limiting tooth plate.
[0009] Furthermore, an unlocking handle pin is rotatably mounted on the cushion hinge plate, the locking paddle is fixedly mounted on the unlocking arm pin, an unlocking handle is fixedly connected to the unlocking handle pin, and pulling the unlocking handle can rotate the unlocking handle pin and the locking paddle.
[0010] Furthermore, a reinforcing plate is installed on the seat cushion hinge plate, a return spring is fixedly connected to the reinforcing plate, and one end of the return spring is fixed to the locking paddle.
[0011] Furthermore, a mounting plate is mounted on the seat mounting bracket, the locking mechanism is mounted on the mounting plate, and the locking mechanism is located between the reinforcing plate and the mounting plate.
[0012] Furthermore, a lock hook fixedly mounted on the vehicle body is provided at the rear side of the backrest assembly, and a backrest lock cooperating with the lock hook is provided on the backrest assembly. The backrest lock is connected or disconnected from the lock hook to lock or unlock the backrest assembly.
[0013] The beneficial effects of the utility model are:
[0014] The utility model can make the seat realize the state of the backrest being laid flat and the state of the seat cushion being folded upward, and the two states can be converted to each other by unlocking; when the seat cushion is folded, the backrest is driven to rotate around the backrest lock hook, thereby realizing the compound movement of the seat folding, and the upward rotating seat cushion can be avoided by rotating the backrest backward, and the thickness of the seat cushion and the backrest does not need to be reduced for the folding function, which can increase the comfort of the seat to a certain extent; at the same time, the backrest lock cooperates with the body in the form of a locking rod, so that the backrest can be rotated, and the locking rod has a simple structure and low cost.
[0015] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:
[0017] Figure 1 An exploded view of a seat according to an embodiment of the present utility model;
[0018] Figure 2 For the utility model embodiment Figure 1 A magnified view of the part A in the middle;
[0019] Figure 3 This is a schematic diagram of the locking mechanism structure of an embodiment of the utility model;
[0020] Figure 4 This is a schematic diagram of the seat structure when the backrest assembly of the embodiment of the utility model is laid flat;
[0021] Figure 5 This is a schematic diagram of the structure of a seat in a normal state according to an embodiment of the utility model;
[0022] Figure 6 This is a schematic diagram of the seat structure when the seat cushion assembly of an embodiment of the utility model is folded.
[0023] The markings in the accompanying drawings are as follows: backrest assembly 1, seat cushion assembly 2, backrest lock 3, lock hook 4, backrest hinge plate 5, backrest rotation pin 6, seat cushion hinge plate 7, first guide groove 7a, seat mounting bracket 8, second guide groove 8a, mounting plate 9, return spring 10, reinforcement plate 11, unlocking handle 12, unlocking handle pin 13, locking paddle 14, locking plate 15, locking groove 15a, third locking tooth 15b, locking plate pin 16, limiting tooth plate 17, first locking tooth 17a, second locking tooth 17b, seat cushion rotation pin 18. DETAILED DESCRIPTION
[0024] like Figures 1 to 6As shown, the utility model provides a folding seat with a foldable seat cushion, which is installed on a vehicle body through a seat mounting bracket 8. The seat includes a backrest assembly 1 and a seat cushion assembly 2 rotatably connected to the backrest assembly 1. The seat cushion assembly 2 is fixedly installed with a seat cushion hinge plate 7, and the seat cushion hinge plate 7 is provided with a first guide groove 7a. The backrest assembly 1 is fixedly installed with a backrest hinge plate 5, and the backrest hinge plate 5 is provided with a backrest rotation pin 6. The seat mounting bracket 8 is provided with a second guide groove 8a. The backrest rotation pin 6 is limitedly slidably installed in the first guide groove 7a and the second guide groove 8a. The seat mounting bracket 8 is fixedly installed with a locking mechanism, and the locking mechanism includes a limiting tooth plate 17, and the limiting tooth plate 17 is provided with a first lock The seat cushion assembly 2 is rotatably connected to the seat mounting bracket 8 through a seat cushion rotating pin shaft 18. A locking plate 15 is rotatably installed on the seat cushion hinge plate 7, wherein a locking plate pin shaft 16 is provided on the seat cushion hinge plate 7, and the locking plate 15 is rotatably installed on the locking plate pin shaft 16. The locking plate 15 is provided with a third locking tooth 15b that can cooperate with both the first locking tooth 17a and the second locking tooth 17b. When the third locking tooth 15b cooperates with the first locking tooth 17a, the seat cushion assembly 2 can be limited when it is laid flat; when the third locking tooth 15b cooperates with the second locking tooth 17b, the seat cushion assembly 2 can be limited when it is folded. Rotating the seat cushion assembly 2 can make the locking plate 15 cooperate with the first locking tooth 17a or the second locking tooth 17b.
[0025] The seat hinge plate 7 is rotatably connected with a locking paddle 14, and the locking piece 15 is provided with a locking groove 15a that cooperates with the locking paddle 14. The locking piece 15 is installed between the locking paddle 14 and the limiting tooth plate 17, wherein an unlocking handle pin shaft 13 is rotatably installed on the seat hinge plate 7, and the locking paddle 14 is fixedly installed on the unlocking handle pin shaft 13, and the unlocking handle pin shaft 13 is fixedly connected with the unlocking handle 12. Pulling the unlocking handle 12 can rotate the unlocking handle pin shaft 13 and the locking paddle 14. When the locking paddle 14 is rotated to disengage from the locking groove 15a, the locking piece 15 can be rotated to disengage from the limiting tooth plate 17. When the seat hinge plate 7 drives the locking piece 15 to rotate until the first locking tooth 17a or the second locking tooth 17b is engaged by rotating the seat cushion assembly 2, the rotating locking paddle 14 is clamped in the locking groove 15a, so that the locking piece 15 is fixed to ensure the stability of the locking.
[0026] A reinforcing plate 11 is installed on the seat hinge plate 7, and a return spring 10 is fixedly connected to the reinforcing plate 11. One end of the return spring 10 is fixed to a locking paddle 14. When the locking paddle 14 is rotated to disengage from the locking groove 15a, the return spring 10 can be deformed, so that when the locking paddle 14 locks the locking plate 15, the locking paddle 14 abuts against the locking groove 15a under the action of the return spring 10.
[0027] The seat mounting bracket 8 is provided with a mounting plate 9 , which serves as a mounting carrier of the locking mechanism and cooperates with the reinforcing plate 11 to enhance the stability of the locking mechanism installation.
[0028] The backrest assembly 1 is provided with a lock hook 4 fixedly mounted on the vehicle body at the rear side, and the backrest assembly 1 is provided with a backrest lock 3 that cooperates with the lock hook 4. The backrest lock 3 is connected or disconnected from the lock hook 4 to lock or unlock the backrest assembly 1.
[0029] The seat movement process of the utility model includes:
[0030] Backrest flattening process:
[0031] Pull the backrest lock 3 to disengage the lock hook 4, and the backrest assembly 1 rotates around the backrest rotation pin 6 through the backrest hinge plate 5, and finally the backrest is in a flat state;
[0032] Seat cushion folding process:
[0033] Pull the unlocking handle 12 to drive the locking paddle 14 to rotate through the unlocking handle pin 13, and the locking paddle 14 rotates to exit the locking groove 15a, so that the locking piece 15 can rotate around the locking piece pin 16, and at the same time, the locking piece 15 exits the first locking tooth 17a to achieve unlocking; at the same time, pull the seat cushion assembly 2 upward to drive the seat cushion hinge plate 7 to rotate around the seat cushion rotation pin 18, so that the backrest rotation pin 6 and the backrest hinge plate 5 move along the first guide groove 7a of the seat cushion hinge plate 7, and at the same time, under the guidance of the second guide groove 8a on the seat mounting bracket 8, the backrest assembly 1 is rotated around the middle lock rod of the lock hook 4; the seat cushion assembly 2 continues to rotate upward, driving the locking piece 15 and the locking piece pin 16 to rotate around the seat cushion rotation pin 18 and finally enter the second locking tooth 17b, and at the same time, the locking paddle 14 enters the locking groove 15a under the action of the return spring 10 to achieve locking; from then on, the seat cushion has reached the folded state;
[0034] Backrest returns to normal state process:
[0035] Pull up the backrest assembly 1 to rotate it around the backrest rotation pin 6, and finally make the backrest lock 3 lock the lock hook 4, and complete the restoration to the normal use state;
[0036] The process of the seat cushion returning to normal state:
[0037] Pull the unlocking handle 12 to drive the locking paddle 14 to rotate through the unlocking handle pin 13, and the locking paddle 14 rotates to exit the locking groove 15a, so that the locking piece 15 can rotate around the locking piece pin 16, and at the same time, the locking piece 15 exits the second locking tooth 17b to achieve unlocking; at the same time, the seat cushion assembly 2 moves downward under the action of gravity, driving the seat cushion hinge plate 7 to rotate around the seat cushion rotation pin 18, so that the backrest rotation pin 6 and the backrest hinge plate 5 move along the first guide groove 7a of the seat cushion hinge plate 7, and at the same time, under the guidance of the second guide groove 8a on the seat mounting bracket 8, the backrest assembly 1 is rotated around the middle locking rod of the lock hook 4; the seat cushion assembly 2 continues to rotate downward, driving the locking piece 15 and the locking piece pin 16 to rotate around the seat cushion rotation pin 18 and finally enter the first locking tooth 17a, and at the same time, the locking paddle 14 enters the locking groove 15a under the action of the return spring 10 to achieve locking; the normal use state is restored;
[0038] The process of converting between the seat cushion folded state and the backrest flat state:
[0039] When the seat back is in the flat state, the unlocking handle 12 is pulled to drive the locking paddle 14 to rotate through the unlocking handle pin 13, and the locking paddle 14 rotates out of the locking groove 15a, so that the locking piece 15 can rotate around the locking piece pin 16, and at the same time, the locking piece 15 exits the first locking tooth 17a to achieve unlocking; at the same time, the cushion assembly 2 is pulled upward to drive the cushion hinge plate 7 to rotate around the cushion rotation pin 18, so that the backrest rotation pin 6 and the backrest hinge plate 5 move along the first guide groove 7a, and at the same time, under the guidance of the second guide groove 8a, the backrest is realized. The backrest assembly 1 rotates relative to the seat cushion assembly 2; the seat cushion assembly 2 continues to rotate upward, driving the locking plate 15 and the locking plate pin 16 to rotate around the seat cushion rotation pin 18 and finally enter the second locking tooth 17b, and at the same time, the locking paddle 14 enters the locking groove 15a under the action of the return spring 10 to achieve locking; at the same time, due to the continuous rotation of the backrest assembly 1 relative to the seat cushion assembly 2, the backrest lock 3 can finally approach the lock hook 4, pressing the backrest assembly 1 backward, so that the backrest lock 3 locks the lock hook 4; from then on, the seat cushion has reached the folded state;
[0040] When the seat is in the seat cushion folded state, the backrest lock 3 is pulled to disengage the backrest lock 3 from the lock hook 4, and the backrest assembly 1 can rotate around the backrest rotation pin 6 through the backrest hinge plate 5. At the same time, the unlocking handle 12 is pulled to drive the locking paddle 14 to rotate through the unlocking handle pin 13. The locking paddle 14 rotates out of the locking groove 15a, so that the locking plate 15 can rotate around the locking plate pin 16, and at the same time, the locking plate 15 exits the second locking tooth 17b to achieve unlocking; at the same time, the backrest assembly 1 and the seat cushion assembly 2 move downward under the action of gravity, driving the seat cushion hinge plate 7 to rotate around the seat cushion The rotating pin 18 rotates, so that the backrest rotating pin 6 and the backrest hinge plate 5 move along the first guide groove 7a. At the same time, under the guiding action of the second guide groove 8a, the backrest assembly 1 is rotated relative to the seat cushion assembly 2; the backrest assembly 1 and the seat cushion assembly 2 continue to rotate downward, driving the locking plate 15 and the locking plate pin 16 to rotate and finally enter the first locking tooth 17a. At the same time, the locking paddle 14 enters the locking groove 15a under the action of the return spring 10 to achieve locking; the backrest assembly 1 is also laid flat; from then on, the backrest has reached the flat state.
[0041] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.
Claims
1. A foldable seat with a foldable seat cushion, mounted on a vehicle body through a seat mounting bracket, the seat comprising a backrest assembly and a seat cushion assembly rotatably connected to the backrest assembly through a locking mechanism, characterized in that: The locking mechanism includes a limiting tooth plate, on which a first locking tooth and a second locking tooth are provided, a locking plate is rotatably mounted on the seat cushion assembly, and the locking plate is provided with a third locking tooth that can cooperate with both the first locking tooth and the second locking tooth. When the seat cushion assembly is rotated so that the locking plate cooperates with the first locking tooth, the seat cushion assembly can be limited in position when it is laid flat, and when the seat cushion assembly is rotated so that the locking plate cooperates with the second locking tooth, the seat cushion assembly can be limited in position when it is folded.
2. The foldable seat with foldable seat cushion according to claim 1, characterized in that: A seat cushion hinge plate is fixedly installed on the seat cushion assembly, and a first guide groove is provided on the seat cushion hinge plate. A backrest hinge plate is fixedly installed on the backrest assembly, and a backrest rotation pin is provided on the backrest hinge plate. A second guide groove is provided on the seat mounting bracket, and the backrest rotation pin is limitedly slidably installed in the first guide groove and the second guide groove.
3. The foldable seat with foldable seat cushion according to claim 2, characterized in that: A locking plate pin shaft is arranged on the seat cushion hinge plate, and the locking plate is rotatably mounted on the locking plate pin shaft.
4. The foldable seat with foldable seat cushion according to claim 3, characterized in that: The seat cushion hinge plate is rotatably connected with a locking paddle, the locking plate is provided with a locking groove matched with the locking paddle, and the locking plate is installed between the locking paddle and the limiting tooth plate.
5. The foldable seat with foldable seat cushion according to claim 4, characterized in that: An unlocking handle pin is rotatably mounted on the cushion hinge plate, and the locking paddle is fixedly mounted on the unlocking arm pin. An unlocking handle is fixedly connected to the unlocking handle pin, and pulling the unlocking handle can rotate the unlocking handle pin and the locking paddle.
6. The foldable seat with foldable seat cushion according to claim 5, characterized in that: A reinforcing plate is installed on the cushion hinge plate, a return spring is fixedly connected to the reinforcing plate, and one end of the return spring is fixed to the locking paddle.
7. The foldable seat with foldable seat cushion according to claim 6, characterized in that: A mounting plate is mounted on the seat mounting bracket, the locking mechanism is mounted on the mounting plate, and the locking mechanism is located between the reinforcing plate and the mounting plate.
8. The foldable seat with foldable seat cushion according to claim 7, characterized in that: A lock hook fixedly mounted on the vehicle body is provided at the rear side of the backrest assembly, and a backrest lock cooperating with the lock hook is provided on the backrest assembly. The backrest lock is connected or disconnected from the lock hook to lock or unlock the backrest assembly.