Hidden seat leg support and deformable seat

Abstract

The utility model discloses a hidden seat leg support and deformation seat, which comprises a seat cushion frame, a support plate is installed in the seat cushion frame in a front-back sliding mode, the support plate can move up and down relative to the seat cushion frame, and a first driving mechanism and a second driving mechanism are arranged on the seat cushion frame. The first driving mechanism is used for driving the supporting plate to slide back and forth along the seat cushion frame; the second driving mechanism is used for driving the supporting plate to move up and down along the seat cushion frame; when the first driving mechanism drives the supporting plate to slidably extend out of the front portion of the seat cushion frame, the second driving mechanism drives the supporting plate to move upwards, and the upper side of the supporting plate can be flush with the upper surface of the seat cushion frame. The leg support has the advantages that the leg support can be hidden and stored on the lower side of the seat cushion or unfolded and connected to the front end of the seat cushion, and therefore the function of expanding the supporting length of the seat cushion is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a hidden seat leg support and a deformable seat. Background Art

[0002] With the rapid development of new energy vehicles, the number of family cars is increasing, and people have higher and higher requirements for the comfort and functionality of car seats. In order to effectively improve the comfort of users in the car, the seats on the market are usually adjustable. For example, by adjusting the backrest angle to allow users to sit or lie down, etc., so that users can relax during long-distance travel or rest. However, due to the limited length of the seat, when the backrest is tilted back and the passenger lies down, the passenger's calves are not supported and cannot be laid flat, affecting the passenger's rest comfort. Therefore, some manufacturers use leg rests to support the legs to provide passengers with a more comfortable lying experience.

[0003] In the prior art, the leg rest is usually rotatably installed at the front end of the seat. When the seat is in a sitting position, the leg rest will occupy the foot space in front of the occupant, affecting the occupant's activity space. Therefore, such a structural design has certain requirements on the size of the interior space of the car, and has the defects of large structural space occupation and low space utilization. Utility Model Content

[0004] In view of this, one of the purposes of the present invention is to provide a hidden seat leg rest, which can be hidden and stored under the seat cushion, or unfolded and connected to the front end of the seat cushion, thereby extending the support length of the seat cushion.

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

[0006] A hidden seat leg support includes a seat cushion frame, the key features of which are: a support plate is mounted in the seat cushion frame so as to be slidable forward and backward, the support plate can move up and down relative to the seat cushion frame, and a first drive mechanism and a second drive mechanism are provided on the seat cushion frame, wherein the first drive mechanism is used to drive the support plate to slide forward and backward along the seat cushion frame, and the second drive mechanism is used to drive the support plate to move up and down along the seat cushion frame;

[0007] After the first driving mechanism drives the support plate to slide and extend to the front of the seat cushion frame, the second driving mechanism drives the support plate to move upward, so that the upper side of the support plate is flush with the upper surface of the seat cushion frame.

[0008] By adopting the above structure, when the seat is in a sitting state, the support plate can be hidden inside the seat cushion frame, reducing the overall space occupied by the seat and ensuring the user's sitting space. When the user needs to lie flat, the third drive mechanism drives the backrest to fall flat backward, and the first drive mechanism drives the support plate to move forward. At the same time, the second drive mechanism drives the support plate to move upward to ensure that when the support plate moves to the front end of the seat cushion frame, the upper surface of the support plate can be flush with the upper surface of the seat cushion frame, thereby extending the support length of the seat cushion frame and realizing the seat being flattened into a bed.

[0009] Preferably, the first driving mechanism includes a first motor, a first gear arranged on the output shaft of the first motor, and a first gear plate meshing with the first gear, and the first gear plate is fixed on the lower side of the support plate and extends along the length direction of the support plate.

[0010] Preferably, slide bars are provided on the inner side of the seat cushion frame at positions corresponding to both sides of the support plate, the support plate can be supported on the two sets of slide bars in a sliding manner forward and backward, and the second driving mechanism can drive the two sets of slide bars to move up and down relative to the seat cushion frame.

[0011] Preferably, the slide bar is provided with a slide groove extending along its length direction, and a pin is fixedly provided on one side of the support plate corresponding to the slide bar, and the pin is slidably supported in the slide groove.

[0012] Preferably, the second driving mechanism includes a first linkage piece rotatably mounted at the front end of the seat cushion frame, a second linkage piece rotatably mounted at the rear end of the seat cushion frame, and a driving component that drives the first linkage piece or the second linkage piece to rotate, the lower end of the first linkage piece is rotatably connected to the front end of the slide bar, and the lower end of the second linkage piece is rotatably connected to the rear end of the slide bar.

[0013] Preferably: the front end of the seat cushion frame is rotatably assembled with a front cross tube, and the rear end is rotatably assembled with a rear cross tube, the upper end of the first linkage piece is fixed on the front cross tube, and the upper end of the second linkage piece is fixed on the rear cross tube, the number of the first linkage pieces and the second linkage pieces are both two groups, the two groups of the first linkage pieces are respectively arranged at the two ends of the front cross tube, and the two groups of the second linkage pieces are respectively arranged at the two ends of the rear cross tube.

[0014] Preferably, the drive assembly includes a second motor, a second gear fixedly sleeved on the output shaft of the second motor, and a second gear plate fixedly sleeved on the front cross tube, and the second gear plate is provided with an arc-shaped tooth portion meshing with the second gear.

[0015] Preferably, an arc-shaped through hole is provided on the second tooth plate, the arc-shaped tooth portion is arranged on the inner side wall of the arc-shaped through hole, and the output shaft of the second motor is passed through the arc-shaped through hole.

[0016] Preferably, the mounting base of the first motor is fixedly assembled on the outer side of the seat cushion frame, the output shaft of the first motor extends inwardly to the inner side of the seat cushion frame, and is arranged vertically with the first gear plate in space.

[0017] The second object of the present utility model is to provide a deformable seat, the key of which is: comprising the above-mentioned hidden seat leg support, the rear end of the seat cushion frame is rotatably equipped with a backrest;

[0018] After the first driving mechanism and the second driving mechanism drive the support plate to be flush with the upper side of the seat cushion frame, the backrest tilts backward, so that the seat can be transformed into a bed.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] By adopting the hidden seat leg rest provided by the present invention, the support plate can be hidden inside the seat cushion frame when the seat is in a sitting state, reducing the overall space occupied by the seat and ensuring the user's sitting space. When the user needs to lie flat, the third drive mechanism drives the backrest to fall flat backward, and the first drive mechanism drives the support plate to move forward. At the same time, the second drive mechanism drives the support plate to move upward to ensure that when the support plate moves to the front end of the seat cushion frame, the upper surface of the support plate can be flush with the upper surface of the seat cushion frame, avoiding the discomfort caused by the height difference between the support plate and the seat cushion frame, extending the supporting length of the seat cushion frame, and realizing the seat being flattened into a bed within a limited space. While saving space, it ensures the comfort of the user lying flat. It has the advantages of compact structure, high space utilization and good comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the hidden seat leg support;

[0022] Figure 2 A schematic diagram showing the structure of the underside of the hidden seat leg support;

[0023] Figure 3 It is a cross-sectional view of the hidden seat leg support;

[0024] Figure 4 A structural diagram showing the connection between the support plate 2 and the slide bar 11 (the seat cushion frame 1 and the backrest 9 are hidden);

[0025] Figure 5 A schematic diagram showing the structure of the support plate 2 sliding along the slide bar 11 (the seat cushion frame 1 and the backrest 9 are hidden);

[0026] Figure 6 Schematic diagram of the process of a seat transforming from a sitting mode to a bed. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0028] like Figure 1 As shown, a deformed seat includes a hidden seat leg rest, which includes a seat cushion frame 1 and a backrest 9 rotatably mounted on the rear end of the seat cushion frame 1. Both sides of the rear end of the seat cushion frame 1 are provided with upwardly extending adapters 12, and the lower end of the backrest 9 is rotatably connected to the two adapters 12. A third drive mechanism is provided on the backrest 9, which is used to drive the backrest 9 to rotate back and forth around the adapter 12. A support plate 2 is provided inside the seat cushion frame 1, that is, on the lower side of the seat cushion. The support plate 2 can slide back and forth relative to the seat cushion frame 1, and can also move up and down relative to the seat cushion frame 1. A first drive mechanism 3 and a second drive mechanism 4 are provided on the seat cushion frame 1, wherein the first drive mechanism 3 is used to drive the support plate 2 to slide back and forth along the seat cushion frame 1 so that the support plate 2 can be stored inside the seat cushion frame 1 or unfolded to the front end of the seat cushion frame 1, and the second drive mechanism 4 is used to drive the support plate 2 to move up and down along the seat cushion frame 1. When the first drive mechanism 3 drives the support plate 2 to slide out to the front of the seat cushion frame 1, the second drive mechanism 4 drives the support plate 2 to move upward, so that the upper side of the support plate 2 is flush with the upper surface of the seat cushion frame 1. Thereafter, the third drive mechanism drives the backrest 9 to tilt backward, so that the seat can be transformed into a bed.

[0029] Based on the above structural design, the working principle of the seat transformation into a bed is as follows: in the seat sitting state, the support plate 2 is hidden inside the seat cushion frame 1, that is, the lower side of the seat cushion, at this time, it can ensure that the user has enough space for his feet to move when sitting. When the user needs to lie flat, please refer to Figure 6 The third driving mechanism drives the backrest 9 to fall flat backward, the first driving mechanism 3 drives the support plate 2 to slide and extend to the front of the seat cushion frame 1, and the second driving mechanism 4 drives the support plate 2 to move upward to ensure that when the support plate 2 moves to the front end of the seat cushion frame 1, the upper side of the support plate 2 can be flush with the upper side of the seat cushion frame 1, avoiding the discomfort caused by the height difference between the support plate 2 and the seat cushion frame 1, extending the supporting length of the seat cushion frame 1, and realizing the seat being flattened into a bed within a limited space, saving space while ensuring the comfort of the user lying flat.

[0030] Combine Figure 1 and 2As shown, the first drive mechanism 3 includes a first motor 31, a first gear 32 fixedly mounted on the output shaft of the first motor 31, and a first toothed plate 33 meshing with the first gear 32. The first toothed plate 33 is fixedly mounted on the underside of the support plate 2 and extends along the length of the support plate 2. The first motor 31 drives the first gear 32 to rotate, thereby driving the first toothed plate 33 forward, thereby driving the support plate 2 forward. In this embodiment, the mounting base of the first motor 31 is fixedly assembled to the outside of the side of the seat cushion frame 1. The output shaft of the first motor 31 extends inward to the inside of the side of the seat cushion frame 1 and is spatially perpendicular to the first toothed plate 33.

[0031] Please refer to Figure 1 and 4 Slide bars 11 are provided on the inner side of the seat cushion frame 1 at positions corresponding to both sides of the support plate 2. Both ends of the support plate 2 in the width direction are supported on the two sets of slide bars 11 for forward and backward sliding. The second drive mechanism 4 can drive the two sets of slide bars 11 to move up and down relative to the seat cushion frame 1. The second drive mechanism 4 drives the two sets of slide bars 11 to move upward, which can drive the support plate 2 to move upward.

[0032] Re-attend Figure 5 The slide bar 11 is provided with a slide groove 111 extending along its length. A pin a is fixedly provided on one side of the support plate 2 corresponding to the slide bar 11. The pin a is slidably supported in the slide groove 111. To ensure the reliability of the connection between the support plate 2 and the slide bar 11, in this embodiment, at least two pins a are provided on the same side of the support plate 2.

[0033] Furthermore, both sides of the support plate 2 in the width direction have upwardly extending bent edges 21 , and the pins a are fixed on the bent edges 21 , and the bent edges 21 are slidably connected to the corresponding slide bars 11 through the pins a.

[0034] like Figure 1 and 4 As shown, the second drive mechanism 4 includes a first linkage piece 7 rotatably mounted on the front end of the seat cushion frame 1, a second linkage piece 8 rotatably mounted on the rear end of the seat cushion frame 1, and a drive assembly that drives the first linkage piece 7 or the second linkage piece 8 to rotate. The lower end of the first linkage piece 7 is rotatably connected to the front end of the slide bar 11, and the lower end of the second linkage piece 8 is rotatably connected to the rear end of the slide bar 11. In this embodiment, the drive assembly drives the first linkage piece 7 to rotate, driving the slide bar 11 connected to the lower end of the first linkage piece 7 to move forward and upward, thereby driving the support plate 2 on the slide bar 11 to move forward and upward.

[0035] Furthermore, Figure 1 and 4As shown, to ensure the stability of the overall structure and the synchronization of the linkage movement, the front end of the seat cushion frame 1 is rotatably mounted with a front cross tube 5, and the rear end is rotatably mounted with a rear cross tube 6. The upper end of the first linkage piece 7 is fixedly mounted on the front cross tube 5, and the lower end is hinged to the front end of the corresponding slide 11 via a first pin shaft b. The upper end of the second linkage piece 8 is fixedly mounted on the rear cross tube 6, and the lower end is hinged to the rear end of the corresponding slide 11 via a second pin shaft c. There are two sets of first linkage pieces 7 and second linkage pieces 8. The two sets of first linkage pieces 7 are respectively arranged at both ends of the front cross tube 5, and the two sets of second linkage pieces 8 are respectively arranged at both ends of the rear cross tube 6. The drive assembly drives the front cross tube 5 to rotate, which can drive the two sets of first linkage pieces 7 to rotate, thereby driving the second linkage pieces 8 to rotate synchronously.

[0036] Please refer to Figure 1 and 4 The drive assembly includes a second motor 42, a second gear 43 fixedly mounted on the output shaft of the second motor 42, and a second toothed plate 41 fixedly mounted on the front cross tube 5. The second toothed plate 41 is provided with an arcuate tooth portion 412 that meshes with the second gear 43. The second motor 42 drives the second gear 43 to rotate, thereby driving the second toothed plate 41 and the front cross tube 5 to rotate, thereby driving the lower end of the first linkage piece 7 to rotate forward and upward. Since the upper end of the second linkage piece 8 is fixedly connected to the rear cross tube 6, the rotation of the first linkage piece 7 can also drive the rear cross tube 6 to rotate, thereby driving the lower end of the second linkage piece 8 to rotate forward and upward synchronously. The synchronous movement of the first linkage piece 7 and the second linkage piece 8 can drive the two sets of slide bars 11 to move forward and upward, and thus drive the support plate 2 to move forward and upward. With this structural design, by controlling the support plate 2 to move forward and then upward, it can ensure that the support plate 2 is perfectly connected to the front end of the seat cushion when it is deployed.

[0037] Combine Figure 3 and 4 As shown, in this embodiment, an arc-shaped through hole 411 is opened on the second tooth plate 41, the arc-shaped tooth portion 412 is arranged on the inner wall of the arc-shaped through hole 411, the base of the second motor 42 is arranged on the inner side of the side of the seat cushion frame 1, and the output shaft of the second motor 42 is passed through the arc-shaped through hole 411.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A hidden seat leg support, comprising a seat cushion frame (1), characterized in that: A support plate (2) is installed in the seat cushion frame (1) so as to be slidable forward and backward, and the support plate (2) can move up and down relative to the seat cushion frame (1). A first driving mechanism (3) and a second driving mechanism (4) are provided on the seat cushion frame (1), wherein the first driving mechanism (3) is used to drive the support plate (2) to slide forward and backward along the seat cushion frame (1), and the second driving mechanism (4) is used to drive the support plate (2) to move up and down along the seat cushion frame (1); When the first driving mechanism (3) drives the support plate (2) to slide out to the front of the seat cushion frame (1), the second driving mechanism (4) drives the support plate (2) to move upward, so that the upper side of the support plate (2) is flush with the upper surface of the seat cushion frame (1).

2. The hidden seat leg support according to claim 1, characterized in that: The first driving mechanism (3) comprises a first motor (31), a first gear (32) arranged on the output shaft of the first motor (31), and a first toothed plate (33) meshing with the first gear (32); the first toothed plate (33) is fixed to the lower side of the support plate (2) and extends along the length direction of the support plate (2).

3. The hidden seat leg support according to claim 2, characterized in that: Slide bars (11) are provided at positions on both sides of the support plate (2) on the inner side of the seat cushion frame (1); the support plate (2) can be supported on the two sets of slide bars (11) in a sliding manner forward and backward; and the second driving mechanism (4) can drive the two sets of slide bars (11) to move up and down relative to the seat cushion frame (1).

4. The hidden seat leg support according to claim 3, characterized in that: The slide bar (11) is provided with a slide groove (111) extending along its length direction, and a pin (a) is fixedly provided on one side of the support plate (2) corresponding to the slide bar (11), and the pin (a) is slidably supported in the slide groove (111).

5. The hidden seat leg support according to claim 3, characterized in that: The second driving mechanism (4) comprises a first linkage piece (7) rotatably mounted on the front end of the seat cushion frame (1), a second linkage piece (8) rotatably mounted on the rear end of the seat cushion frame (1), and a driving assembly for driving the first linkage piece (7) or the second linkage piece (8) to rotate, wherein the lower end of the first linkage piece (7) is rotatably connected to the front end of the slide bar (11), and the lower end of the second linkage piece (8) is rotatably connected to the rear end of the slide bar (11).

6. The hidden seat leg support according to claim 5, characterized in that: The front end of the seat cushion frame (1) is rotatably mounted with a front transverse tube (5), and the rear end is rotatably mounted with a rear transverse tube (6). The upper end of the first linkage piece (7) is fixed on the front transverse tube (5), and the upper end of the second linkage piece (8) is fixed on the rear transverse tube (6). The number of the first linkage piece (7) and the second linkage piece (8) is two groups. The two groups of the first linkage pieces (7) are respectively arranged at the two ends of the front transverse tube (5), and the two groups of the second linkage pieces (8) are respectively arranged at the two ends of the rear transverse tube (6).

7. The hidden seat leg support according to claim 6, characterized in that: The drive assembly comprises a second motor (42), a second gear (43) fixedly sleeved on an output shaft of the second motor (42), and a second tooth plate (41) fixedly sleeved on a front transverse tube (5), wherein the second tooth plate (41) is provided with an arc-shaped tooth portion (412) meshing with the second gear (43).

8. The hidden seat leg support according to claim 7, characterized in that: An arc-shaped through hole (411) is provided on the second tooth plate (41), the arc-shaped tooth portion (412) is arranged on the inner wall of the arc-shaped through hole (411), and the output shaft of the second motor (42) is passed through the arc-shaped through hole (411).

9. The hidden seat leg support according to claim 2, characterized in that: The mounting seat of the first motor (31) is fixedly assembled on the outside of the side of the seat cushion frame (1), and the output shaft of the first motor (31) extends inward to the inside of the side of the seat cushion frame (1) and is arranged vertically in space with the first tooth plate (33).

10. A deformable seat, characterized in that: A hidden seat leg support comprising any one of claims 1 to 9, wherein the rear end of the seat cushion frame (1) is rotatably mounted with a backrest (9); After the first drive mechanism (3) and the second drive mechanism (4) drive the support plate (2) to be flush with the upper side of the seat cushion frame (1), the backrest (9) tilts backwards, enabling the seat to be transformed into a bed.

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