Automatic folding and unfolding table plate and vehicle seat

Abstract

The utility model relates to an automatic folding and unfolding table plate and a vehicle seat, and the automatic folding and unfolding table plate comprises a connecting frame which is detachably arranged at the rear part of the vehicle seat; the table plate shell is provided with an object placing surface; the pair of transmission rod components are respectively positioned on two sides of the table plate shell and are used for connecting the table plate shell with the connecting frame; the attitude sensor is arranged on the table plate shell and is used for detecting the levelness of the object placing surface; the driving device is arranged in the table plate shell, is in transmission connection with the transmission rod assembly and is used for driving the table plate shell to swing relative to the connecting frame and adjusting the levelness of the object placing surface; a controller of the automatic folding and unfolding table board receives a signal from a posture sensor and controls the swing angle of a table board shell relative to a connecting frame through a driving device, so that an object placing face is kept horizontal, and therefore the levelness of the object placing face can be automatically adjusted when the table board is used, and the table board is kept in a horizontal state all the time; and meanwhile, the device can be conveniently mounted on an existing seat.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, in particular to an automatically retractable table top and a vehicle seat. Background Art

[0002] To facilitate movement within the vehicle, some vehicles feature retractable tables behind the seatbacks. When in use, the tables can be manually or automatically released to a horizontal position, allowing users to place computers, cups, or other items on the storage surface. When not in use, the tables can be manually or automatically retracted to fit behind the seatbacks. Automatically retractable tables are increasingly being used in vehicles.

[0003] However, when the seat back angle is adjusted or the front and rear angle of the vehicle body changes while the vehicle is driving, the storage surface of the table is often not in a horizontal state, which causes items to slide and the user experience is poor.

[0004] In addition, when a seat that is not equipped with an automatically retractable table needs to be equipped with an automatically released table, the connecting parts between the table and the seat back take up a large space, which brings inconvenience to the installation.

[0005] Therefore, it is necessary to provide an automatically retractable table top, which can automatically adjust the level of the storage surface when in use, keep the table top in a horizontal state at all times, and is easy to install on existing seats. Utility Model Content

[0006] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides an automatically retractable table top and vehicle seat, so that the table top can automatically adjust the level of the storage surface when in use, keeping the table top in a horizontal state at all times, and is convenient for installation on existing seats.

[0007] The technical solutions adopted in this utility model are as follows:

[0008] An automatically retractable table top, comprising:

[0009] A connecting frame, the connecting frame being detachably mounted on the rear portion of the vehicle seat;

[0010] A table shell, wherein the table shell is provided with a storage surface;

[0011] A pair of transmission rod assemblies, respectively located on both sides of the table top shell, connecting the table top shell to the connecting frame;

[0012] A posture sensor is provided on the table shell and is used to detect the horizontality of the storage surface;

[0013] A driving device, the driving device is arranged inside the table top shell and is in driving connection with the transmission rod assembly, and is used to drive the table top shell to swing relative to the connecting frame to adjust the horizontality of the storage surface;

[0014] Among them, the controller of the automatic retractable table top receives a signal from a posture sensor, and controls the table top shell to change the swing angle relative to the connecting frame through a driving device, so that the storage surface remains horizontal, and the sum of the backrest state angle of the vehicle seat and the upper limit value of the swing angle is greater than or equal to 180°.

[0015] As a further improvement of the above technical solution:

[0016] The single-piece transmission rod assembly includes a first transmission rod and a second transmission rod;

[0017] One end of the first transmission rod is hinged to the connecting frame, and the other end of the first transmission rod is hinged to the table top shell and is in transmission connection with the driving device;

[0018] One end of the second transmission rod is hinged to the connecting frame, and the other end of the second transmission rod is hinged to the table top shell;

[0019] The connecting frame, the first transmission rod, the table top shell and the second transmission rod form a four-link structure.

[0020] The first transmission rod and the second transmission rod have the same structure.

[0021] The structure of the first transmission rod includes a first offset rod and a second offset rod, wherein the axes of the first offset rod and the second offset rod are coplanar and in the same direction.

[0022] It also includes an intermediate connecting rod, the two ends of which are respectively connected to the tail end of the first offset rod and the head end of the second offset rod, and the angles between the axis of the intermediate connecting rod and the axes of the first offset rod and the second offset rod are all obtuse angles;

[0023] The head end of the first offset rod is hinged to the connecting frame, and the tail end of the second offset rod is hinged to the table top shell.

[0024] The second transmission rod is located below the first transmission rod.

[0025] The middle connecting rod of the first transmission rod is used to avoid the tail end of the second offset rod of the second transmission rod, so as to increase the upper limit value of the swing angle of the table top shell;

[0026] The middle connecting rod of the second transmission rod is used to avoid the tail end of the second offset rod of the first transmission rod, so as to reduce the distance between the table top shell in the storage state and the connecting frame.

[0027] The backrest angle range of the automatic retractable table top in the working state is 90° to 135°.

[0028] The swing angle ranges from 45° to 90°.

[0029] The table top shell includes an upper shell and a lower shell fixedly connected to the upper shell, the upper shell is provided with the storage surface, and a receiving cavity is formed between the upper shell and the lower shell;

[0030] It also includes an internal skeleton located in the accommodating cavity, the upper shell and / or the lower shell are fixedly connected to the internal skeleton, the internal skeleton is fixedly connected to the driving device, and the internal skeleton is connected to the transmission rod assembly.

[0031] The driving device includes a driving motor fixedly installed in the middle of the table shell, the output end of the driving motor is connected to a transmission shaft, and the driving motor is connected to a pair of transmission rod assemblies through the transmission shaft.

[0032] A vehicle seat comprises the above-mentioned automatically retractable table top.

[0033] As a further improvement of the above technical solution:

[0034] The controller is in communication with the control unit of the vehicle to obtain the pitch angle of the vehicle body or the backrest angle of the seat, which is used to control the driving device to adjust the horizontality of the storage surface.

[0035] The beneficial effects of the utility model are as follows:

[0036] The utility model has a compact and reasonable structure and is easy to operate. By arranging the driving device in the table top shell, the structure of the connecting components between the table top and the seat back is simplified, and the upper limit value of the swing angle of the table top shell is increased, so that the table top can automatically adjust the horizontality of the storage surface when in use, and the table top is always kept in a horizontal state. At the same time, it is convenient to install on existing seats.

[0037] The utility model also has the following advantages:

[0038] (1) The transmission rod assembly adopts a four-link structure design to reduce the overall structural size of the connecting frame and the transmission rod assembly. The first transmission rod and the second transmission rod are both bent to reduce the volume of the table top in the stored state and increase the upper limit of the swing angle.

[0039] (2) The drive motor is located in the middle of the table shell and is fixedly installed on the internal frame of the table shell. It is connected to a pair of drive rod assemblies through a drive shaft, and synchronously drives the two drive rod assemblies to ensure synchronization and avoid failures caused by the asynchronous transmission structures on both sides.

[0040] (3) In addition to connecting the controller to the internal attitude sensor of the table to adjust the horizontality of the storage surface, the controller can also communicate with the vehicle's control unit to monitor the vehicle's pitch angle / seat backrest angle, accurately and quickly control the drive device, and adjust the horizontal state of the table. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural diagram of the present utility model.

[0042] Figure 2 This is an exploded view of the present invention.

[0043] Figure 3 This is the main view of the present invention (excluding the table shell).

[0044] Figure 4 This is a schematic diagram of the utility model in working state.

[0045] Figure 5 This is a schematic diagram of the utility model in working state (a schematic diagram of a four-bar connecting rod structure).

[0046] Wherein: 1. Vehicle seat; 2. Connecting frame; 3. Second transmission rod;

[0047] 4. First transmission rod; 41. First offset rod; 42. Second offset rod; 43. Intermediate connecting rod;

[0048] 5. Table shell; 50. Storage surface; 51. Upper shell; 52. Lower shell; 53. Internal frame;

[0049] 6. Driving device; 61. Driving motor; 62. Gearbox; 63. Drive shaft;

[0050] 7. Attitude sensor;

[0051] α, backrest angle state angle;

[0052] β, swing angle. DETAILED DESCRIPTION

[0053] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0054] Example 1:

[0055] like Figure 1-Figure 5 As shown, the automatic retractable table top of this embodiment includes a connecting frame 2, a table top shell 5, a pair of transmission rod assemblies, a posture sensor 7 and a driving device 6.

[0056] A connecting frame 2 is detachably mounted on the rear portion of the vehicle seat 1;

[0057] The table shell 5 is provided with a storage surface 50;

[0058] A pair of transmission rod assemblies, located on both sides of the table shell 5, connect the table shell 5 to the connecting frame 2;

[0059] The posture sensor 7 is provided on the table shell 5 and is used to detect the horizontality of the storage surface 50;

[0060] The driving device 6 is disposed inside the table shell 5 and is in driving connection with the transmission rod assembly, and is used to drive the table shell 5 to swing relative to the connecting frame 2 to adjust the levelness of the storage surface 50;

[0061] Among them, the controller for automatically retracting and extending the table top receives a signal from the posture sensor 7, and controls the table top shell 5 through the drive device 6 to change the swing angle β relative to the connecting frame 2, so that the storage surface 50 remains horizontal, and the sum of the backrest state angle α of the vehicle seat 1 and the upper limit value of the swing angle β is greater than or equal to 180°.

[0062] The controller of the automatic retractable table top of this embodiment is connected to the drive device 6 by signal. When the table top is in use, the controller receives the horizontality signal from the attitude sensor 7, and the drive device 6 drives the table top shell 5 to swing relative to the connecting frame 2 so that the storage surface 50 is in a horizontal state.

[0063] In addition, the controller also includes a start switch, which controls the start of the drive device 6 and can be controlled by voice or button to store and release the table board. When the table board is not in use, the table board shell 5 is stored, such as Figure 4 As shown in FIG. 1 (a), when the table top is used, the table top shell 5 is released so that the storage surface 50 maintains a certain angle with the vehicle seat 1. The driving device 6 adjusts the storage surface 50 to a horizontal state according to the horizontality signal of the posture sensor 7, as shown in FIG. Figure 4 As shown in (c) and (d);

[0064] like Figure 5 As shown, the backrest state angle of the vehicle seat 1 is represented as α. The upper limit value of the swing angle β is increased so that the swing angle β includes the changes in the backrest of the vehicle seat 1 and the front and rear angles of the vehicle body during driving. The driving device 6 can adjust the swing of the table shell 5 to keep the horizontality of the storage surface 50 as horizontal as possible.

[0065] The driving device 6 is installed in the table shell 5, simplifying the structure of the adjustable table located at the connecting frame 2, making it easier to install the adjustable table on the existing vehicle seat 1;

[0066] The posture sensor 7 may be a level sensor or an inclination sensor, etc., for detecting the inclination angle of the storage surface 50 relative to the horizontal plane along the front-to-back direction of the vehicle body. Specifically, the posture sensor 7 is located inside the table shell 5;

[0067] Corresponding structures can be arranged inside the table shell 5 to achieve functional expansion such as wireless charging. Cup holders, brackets, etc. can be arranged on the upper shell of the storage surface 50. The controller can also be installed inside the table shell 5 and integrated with the posture sensor 7.

[0068] By setting the driving device 6 in the table shell 5, the structure of the connecting components between the table and the seat back is simplified, and the upper limit value of the swing angle of the table shell 5 is increased, the table can automatically adjust the horizontality of the storage surface 50 when in use, keeping the table in a horizontal state at all times, and at the same time facilitate installation on existing seats.

[0069] The automatic retractable table top of this embodiment solves the problem that the table top is placed at a single angle and cannot be adjusted in real time. It realizes real-time horizontal adjustment of the small seat table top and keeps the table top in a horizontal state at all times to ensure the user experience.

[0070] The horizontal status of the table top is monitored and adjusted in real time and is not affected by the seat back angle. The front row user can adjust the seat without affecting the user experience in the back row.

[0071] like Figure 3 、 Figure 5 As shown, the single-piece transmission rod assembly includes a first transmission rod 4 and a second transmission rod 3;

[0072] One end of the first transmission rod 4 is hinged to the connecting frame 2, and the other end of the first transmission rod 4 is hinged to the table shell 5 and is in transmission connection with the driving device 6;

[0073] One end of the second transmission rod 3 is hinged to the connecting frame 2, and the other end of the second transmission rod 3 is hinged to the table shell 5;

[0074] The connecting frame 2, the first transmission rod 4, the table top shell 5 and the second transmission rod 3 form a four-bar structure.

[0075] The first transmission rod 4 is the active arm, and there are two of them located on the left and right sides of the table shell 5 respectively. They are driven by the driving device 6 to change the relative position relationship between the first transmission rod 4 and the table shell 5. At the same time, the second transmission rod 3 acts as a driven arm and generates relative movement with the first transmission rod 4, maintaining the angle change between the table shell 5 and the first transmission rod 4 while maintaining the connection between the table shell 5 and the connecting frame 2 and the change of the relative angle.

[0076] Further, if Figure 3 、 Figure 5 As shown, the first transmission rod 4 and the second transmission rod 3 have the same structure.

[0077] The structure of the first transmission rod 4 includes a first offset rod 41 and a second offset rod 42. The axes of the first offset rod 41 and the second offset rod 42 are coplanar and in the same direction.

[0078] The intermediate connecting rod 43 is further included. The two ends of the intermediate connecting rod 43 are respectively connected to the tail end of the first offset rod 41 and the head end of the second offset rod 42. The axis of the intermediate connecting rod 43 and the axis of the first offset rod 41 and the second offset rod 42 are both obtuse angles.

[0079] The head end of the first offset rod 41 is hinged to the connecting frame 2 , and the tail end of the second offset rod 42 is hinged to the table top shell 5 .

[0080] The coplanar and consistent directions of the axes of the first offset rod 41 and the second offset rod 42 mean that the first offset rod 41 and the second offset rod 42 have the same orientation or trend. The first offset rod 41 and the second offset rod 42 may be parallel to each other or not.

[0081] like Figure 3 、 Figure 5 As shown, the second transmission rod 3 is located below the first transmission rod 4. The structural relationship between the second transmission rod 3 and the first transmission rod 4 is as follows:

[0082] like Figure 5 As shown in (h), the middle connecting rod 43 of the first transmission rod 4 is used to avoid the tail end of the second offset rod 42 of the second transmission rod 3, so as to increase the upper limit value of the swing angle β of the table shell 5;

[0083] like Figure 5 As shown in (e), the middle connecting rod 43 of the second transmission rod 3 is used to avoid the tail end of the second offset rod 42 of the first transmission rod 4, so as to reduce the distance between the table top shell 5 in the storage state and the connecting frame 2.

[0084] The transmission rod assembly adopts a four-link structure design to reduce the overall structural dimensions of the connecting frame 2 and the transmission rod assembly. The first transmission rod 4 and the second transmission rod 3 are both designed to be bent to reduce the volume of the table top in the stored state, while increasing the upper limit value of the swing angle β.

[0085] The range of the backrest state angle α in the working state of the automatic retractable table plate is 90° to 135°. When it exceeds this range, the automatic retractable table plate does not have the automatic adjustment function.

[0086] The swing angle β ranges from 45° to 90°. In order to adapt to the backrest state angle α, the table shell 5 has an adaptive adjustment range.

[0087] For example, when the backrest state angle α is 110°, the swing angle β is adjusted according to the horizontality signal detected in the working state, which can be 70° and a maximum of 90°, that is, a reserve angle range of 20° is added for real-time adjustment.

[0088] like Figure 2As shown, the table shell 5 includes an upper shell 51 and a lower shell 52 fixedly connected to the upper shell 51. The upper shell 51 is provided with a storage surface 50, and a receiving cavity is formed between the upper shell 51 and the lower shell 52.

[0089] It also includes an internal skeleton 53 located in the accommodating cavity, the upper shell 51 and / or the lower shell 52 are fixedly connected to the internal skeleton 53, the internal skeleton 53 is fixedly connected to the driving device 6, and the internal skeleton 53 is connected to the transmission rod assembly.

[0090] Specifically, avoidance grooves are provided on both sides of the upper shell 51 of the table top shell 5 for avoiding the transmission rod assembly. After the upper shell 51 is fixed to the internal skeleton 53, the lower shell 52 is fixedly connected to the upper shell 51. Conversely, the lower shell 52 can be fixed to the internal skeleton 53, and then the upper shell 51 and the lower shell 52 are fixedly connected.

[0091] The internal skeleton 53 serves as a main structural component, and can not only fix the driving device 6 but also fix the posture sensor 7 .

[0092] like Figure 3 、 Figure 5 As shown, the internal skeleton 53 is hinged to the tail end of the second offset rod 42 of the first transmission rod 4, and the hinge points are arranged at intervals on the side of the internal skeleton 53 to form a "rod" of the four-bar structure; the head end of the first offset rod 41 of the first transmission rod 4 is hinged to the connecting frame 2, and the head end of the first offset rod 41 of the second transmission rod 3 is hinged to the connecting frame 2, and the two hinge points are arranged at intervals on the side of the connecting frame 2 to form another "rod" of the four-bar structure. The above two "rods" are connected end to end with the first transmission rod 4 and the second transmission rod 3 to form a four-bar structure.

[0093] Example 2:

[0094] like Figure 2 As shown, based on the first embodiment, this embodiment adopts electric drive, and the driving device 6 includes a driving motor 61 fixedly installed in the middle of the table shell 5. The output end of the driving motor 61 is connected to the transmission shaft 63, and the driving motor 61 is connected to a pair of transmission rod assemblies through the transmission shaft 63.

[0095] The end of the first transmission rod 4 is fixedly connected to a hinge shaft (the hinge shaft is located at the tail end of the second offset rod 42 of the first transmission rod 4), and the first transmission rod 4 is hinged to the internal skeleton 53 of the table shell 5 through the hinge shaft, and the hinge shaft is fixedly connected to the end of the transmission shaft 63. When the transmission shaft 63 rotates, the hinge shaft is driven to rotate, thereby driving the first transmission rod 4 to swing relative to the drive motor 61 and the internal skeleton 53 and the table shell 5 fixedly connected to the drive motor 61.

[0096] The drive motor 61 is located in the middle of the table top shell 5 and is fixedly mounted on the internal skeleton 53 in the table top shell 5. It is connected to a pair of transmission rod assemblies through a transmission shaft 63, and synchronously drives the two transmission rod assemblies to ensure synchronization and avoid failures caused by the asynchronous transmission structures on both sides.

[0097] The driving motor 61 is a brushless DC motor.

[0098] The driving device 6 further includes a gearbox 62 . The gearbox 62 is connected to the output end of the driving motor 61 . The output shaft of the gearbox 62 is in driving connection with the transmission shaft 63 .

[0099] The automatic retractable table top of this embodiment is driven by a motor to move the table top. After it is in place, the motor stops and self-locks. When the motor is connected to the transmission rod assembly through the gearbox 62, the gearbox 62 is a worm gear transmission, which can achieve self-locking and avoid load-bearing damage to the motor after the movement is completed.

[0100] Example 3:

[0101] The vehicle seat of this embodiment includes the automatically retractable table top in the above embodiment. The controller is communicated with the vehicle control unit to obtain the pitch angle of the vehicle body or the backrest angle α of the seat, which is used to control the drive device 6 to adjust the horizontality of the storage surface 50.

[0102] The table top of the vehicle seat in this embodiment, in addition to the controller being connected to the internal posture sensor 7 of the table top to achieve horizontal adjustment of the storage surface 50, the controller can also communicate with the vehicle's control unit to monitor the vehicle body pitch angle / seat backrest state angle α, accurately and quickly control the drive device 6, and adjust the horizontal state of the table top.

[0103] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. An automatically retractable table top, characterized by: include: A connecting frame (2), the connecting frame (2) being detachably mounted on the rear portion of the vehicle seat (1); A table shell (5), wherein a storage surface (50) is provided on the table shell (5); A pair of transmission rod assemblies, respectively located on both sides of the table top shell (5), connecting the table top shell (5) with the connecting frame (2); A posture sensor (7), the posture sensor (7) being arranged on the table shell (5) and being used to detect the horizontality of the storage surface (50); A driving device (6), the driving device (6) is arranged inside the table shell (5) and is in transmission connection with the transmission rod assembly, and is used to drive the table shell (5) to swing relative to the connecting frame (2) to adjust the horizontality of the storage surface (50); The controller for automatically retracting and extending the table top receives a signal from a posture sensor (7) and controls the table top shell (5) to change a swing angle (β) relative to the connecting frame (2) through a driving device (6), so that the storage surface (50) remains horizontal, and the sum of the upper limit values ​​of the backrest state angle (α) and the swing angle (β) of the vehicle seat (1) is greater than or equal to 180°.

2. The automatically retractable table top according to claim 1, wherein: The single-piece transmission rod assembly comprises a first transmission rod (4) and a second transmission rod (3); One end of the first transmission rod (4) is hinged to the connecting frame (2), and the other end of the first transmission rod (4) is hinged to the table shell (5) and is in transmission connection with the driving device (6); One end of the second transmission rod (3) is hinged to the connecting frame (2), and the other end of the second transmission rod (3) is hinged to the table top shell (5); The connecting frame (2), the first transmission rod (4), the table top shell (5) and the second transmission rod (3) form a four-link structure.

3. The automatically retractable table top according to claim 2, wherein: The first transmission rod (4) and the second transmission rod (3) have the same structure. The structure of the first transmission rod (4) comprises a first offset rod (41) and a second offset rod (42), wherein the axes of the first offset rod (41) and the second offset rod (42) are coplanar and in the same direction. It also includes an intermediate connecting rod (43), the two ends of which are respectively connected to the tail end of the first offset rod (41) and the head end of the second offset rod (42), and the axis of the intermediate connecting rod (43) forms an obtuse angle with the axes of the first offset rod (41) and the second offset rod (42); The head end of the first offset rod (41) is hinged to the connecting frame (2), and the tail end of the second offset rod (42) is hinged to the table top shell (5).

4. The automatically retractable table top according to claim 3, wherein: The second transmission rod (3) is located below the first transmission rod (4). The middle connecting rod (43) of the first transmission rod (4) is used to avoid the tail end of the second offset rod (42) of the second transmission rod (3), and is used to increase the upper limit value of the swing angle (β) of the table shell (5); The middle connecting rod (43) of the second transmission rod (3) is used to avoid the tail end of the second offset rod (42) of the first transmission rod (4), and is used to reduce the distance between the table top shell (5) in the storage state and the connecting frame (2).

5. The automatically retractable table top according to claim 1, wherein: The backrest state angle (α) in the working state of the automatically retractable table top ranges from 90° to 135°.

6. The automatically retractable table top according to claim 1, wherein: The swing angle (β) ranges from 45° to 90°.

7. The automatically retractable table top according to claim 1, wherein: The table shell (5) comprises an upper shell (51) and a lower shell (52) fixedly connected to the upper shell (51); the storage surface (50) is provided on the upper shell (51); and a receiving cavity is formed between the upper shell (51) and the lower shell (52); It also includes an internal skeleton (53) located in the accommodating cavity, the upper shell (51) and / or the lower shell (52) are fixedly connected to the internal skeleton (53), the internal skeleton (53) is fixedly connected to the driving device (6), and the internal skeleton (53) is connected to the transmission rod assembly.

8. The automatically retractable table top according to claim 1, wherein: The driving device (6) comprises a driving motor (61) fixedly mounted in the middle of the table shell (5); the output end of the driving motor (61) is connected to a transmission shaft (63); and the driving motor (61) is connected to a pair of transmission rod assemblies via the transmission shaft (63).

9. A vehicle seat, characterized in that: It comprises the automatically retractable table top as described in any one of claims 1-8.

10. The vehicle seat according to claim 9, wherein: The controller is in communication with the control unit of the vehicle to obtain the pitch angle of the vehicle body or the backrest state angle (α) of the seat, and is used to control the driving device (6) to adjust the horizontality of the storage surface (50).

Images