A four-bar electric table with actuators arranged on the back of a seat.

Abstract

This utility model relates to a four-bar linkage electric table with actuators arranged on the back of a seat, comprising: a clearance groove formed on the back of the front seat, a table support plate fixed to the seat frame by bolts within the clearance groove, a four-bar linkage mechanism, a small table assembly, and a linkage drive actuator. The four-bar linkage mechanism includes: an upper left linkage, an upper right linkage, a lower left linkage, and a lower right linkage. The small table assembly includes: a table frame, an inner table panel, and an outer table panel. One end of the upper left and upper right linkages is rotatably connected to the table support plate, and the other end is rotatably connected to the table frame. One end of the lower left and lower right linkages is fixed to the drive shaft extending from the linkage drive actuator, and the other end is rotatably connected to the table frame by stepped bolts. The inner table panel is fixed to the table frame by bolts, and the outer table panel is snapped onto the inner table panel by clips. The advantages of this utility model are that it makes the electric table lighter and thinner while allowing for the arrangement of more intelligent structures.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a four-link electric table with actuators arranged on the back of a seat. Background Technology

[0002] As end customers increasingly demand more from car seat functions, the seat back trays on the market have changed from the traditional manual opening and closing mechanism to an electric opening mechanism. Since most of the actuators for the current seat back trays are installed inside the tray, although this method is simpler to arrange, it results in a larger overall weight and thickness of the tray, which cannot meet the needs of intelligent and thinner end users. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide a four-link electric table with the actuator arranged in the back of the seat. This allows the actuator to be arranged inside the backrest, making the electric table thinner and lighter, while also allowing for the arrangement of more intelligent structures, thus fundamentally overcoming the shortcomings of the prior art.

[0004] This utility model provides a four-link electric table with actuators arranged on the back of a seat, comprising: a clearance groove formed on the back of the front seat, a table support plate disposed in the clearance groove and fixed to the seat frame by bolts, a four-link mechanism, a small table assembly, and a linkage drive actuator. The four-link mechanism includes: an upper left linkage, an upper right linkage, a lower left linkage, and a lower right linkage. The small table assembly includes: a table frame, an inner table panel, and an outer table panel. The upper left linkage and... One end of the upper right connecting rod is rotatably connected to the tabletop support plate, and the other end is rotatably connected to the tabletop frame. One end of the lower left and lower right connecting rods is fixed to the drive shaft extending from the connecting rod drive actuator, and the other end is rotatably connected to the tabletop frame through stepped bolts. The inner tabletop is fixed to the tabletop frame through bolts, and the outer tabletop is snapped onto the inner tabletop through buckles. The connecting rod drive actuator drives the lower left and lower right connecting rods to fold up or lower the small tabletop assembly.

[0005] As a preferred embodiment of this utility model, the upper left connecting rod and the upper right connecting rod are driven connecting rods. The ends of the upper left connecting rod and the upper right connecting rod that are connected to the tabletop support plate are fixedly connected with self-lubricating sleeves. The self-lubricating sleeves of the upper left connecting rod and the upper right connecting rod are riveted to the tabletop support plate by rivets and plastic pads. The upper left connecting rod and the upper right connecting rod rotate on the tabletop support plate through the self-lubricating sleeves.

[0006] As a preferred embodiment of this utility model, the lower left connecting rod and the lower right connecting rod are active connecting rods. The ends of the lower left connecting rod and the lower right connecting rod that are connected to the connecting rod drive actuator are provided with mounting holes, and the mounting holes are provided with teeth that mesh with the drive shaft of the connecting rod drive actuator.

[0007] As a preferred embodiment of this utility model, the linkage drive actuator includes: an actuator housing, a drive motor installed inside the actuator housing, a reducer connected to the drive motor, and a drive shaft extending from the reducer. The drive shaft of the reducer extends from both sides of the actuator housing, and the drive shaft is provided with teeth that mesh with mounting holes. The drive motor drives the drive shaft to rotate through the reducer, and the drive shaft drives the lower left link and the lower right link to rotate, thereby driving the small table assembly.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. By arranging the actuator on the front seatback frame, this utility model allows the small table to be made thinner, and the space freed up on the small table can be used to arrange more intelligent structures, such as wireless charging structures.

[0010] 2. The linkage drive actuator of this utility model drives the small table synchronously through two lower linkages, making the folding or unfolding of the small table smoother and more stable.

[0011] 3. This utility model arranges the linkage drive actuator on the tabletop support plate, and connects it to the seat frame through the tabletop support plate, making the overall installation and disassembly of the small tabletop more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the installation of the electric table and chair back in this embodiment.

[0013] Figure 2 This is a schematic diagram of the installation of the small table assembly and the four-bar linkage in this embodiment.

[0014] Figure 3 This is an exploded view of the small table assembly and the four-bar linkage in this embodiment.

[0015] Figure 4 This is a schematic diagram of the installation of the tabletop support plate and the linkage drive actuator in this embodiment.

[0016] Figure 5 This is a schematic diagram of the chair back in this embodiment.

[0017] Figure 6 This is a schematic diagram of the lower left connecting rod in this embodiment.

[0018] Reference numerals: 1. Front seat backrest; 2. Clearance groove; 3. Table support plate; 4. Four-bar linkage; 401. Upper left linkage; 402. Upper right linkage; 403. Lower left linkage; 404. Lower right linkage; 405. Self-lubricating sleeve; 406. Rivet; 407. Plastic pad; 408. Step bolt; 409. Mounting hole; 5. Small table assembly; 501. Table frame; 502. Inner table panel; 503. Outer table panel; 6. Linkage drive actuator; 601. Drive shaft. Detailed Implementation

[0019] See Figure 1-6 As shown, this embodiment provides a four-bar linkage electric table with actuators arranged on the seat back, including: a clearance groove 2 formed on the front seat back 1, a table support plate 3 disposed in the clearance groove 2 and fixed to the seat frame by bolts, a four-bar linkage 4, a small table assembly 5, and a linkage drive actuator 6. The four-bar linkage 4 includes: an upper left linkage 401, an upper right linkage 402, a lower left linkage 403, and a lower right linkage 404. The small table assembly 5 includes: a table frame 501, an inner table panel 502, and an outer table panel 503. The upper left linkage 401 and... One end of the upper right connecting rod 402 is rotatably connected to the tabletop support plate 3, and the other end is rotatably connected to the tabletop frame 501. The upper left connecting rod 401 and the upper right connecting rod 402 serve as driven connecting rods. The ends of the upper left connecting rod 401 and the upper right connecting rod 402 connected to the tabletop support plate 3 are fixedly connected with self-lubricating sleeves 405. The self-lubricating sleeves 405 of the upper left connecting rod 401 and the upper right connecting rod 402 are riveted to the tabletop support plate 3 by rivets 406 and plastic pads 407. The upper left connecting rod 401 and the upper right connecting rod 402 rotate on the tabletop support plate 3 through the self-lubricating sleeves 405. One end of the lower left connecting rod 403 and the lower right connecting rod 404 is fixedly connected to the drive shaft 601 extending from the connecting rod drive actuator 6, and the other end is rotatably connected to the table frame through a stepped bolt 408. The lower left connecting rod 403 and the lower right connecting rod 404 serve as active connecting rods. The end of the lower left connecting rod 403 and the lower right connecting rod 404 connected to the connecting rod drive actuator 6 is provided with a mounting hole 409. The mounting hole 409 is provided with teeth that mesh with the drive shaft 601 of the connecting rod drive actuator 6. The inner table panel 502 is fixedly connected to the table frame 501 by bolts, and the outer table panel 503 is snapped onto the inner table panel 502 by a buckle. The connecting rod drive actuator 6 drives the lower left connecting rod 403 and the lower right connecting rod 404 to fold up or lower the small table assembly 5.

[0020] Furthermore, the linkage drive actuator 6 in this embodiment includes: an actuator housing, a drive motor installed in the actuator housing, a reducer connected to the drive motor, and a drive shaft 601 extending from the reducer. The drive shaft 601 of the reducer extends from both sides of the actuator housing. The drive shaft 601 is provided with teeth that mesh with the mounting holes 409. The drive motor drives the drive shaft 601 to rotate through the reducer. The drive shaft 601 drives the lower left link 403 and the lower right link 404 to rotate, thereby driving the small table assembly 5.

[0021] Working principle: The modular table support plate 3 is bolted to the clearance groove 2 of the front seat back 1, and then the linkage drive actuator 6 of the small table assembly 5 is fixed to the table support plate 3. Finally, the small table assembly 5 is driven by a four-bar linkage to realize the automatic folding of the small table assembly 5.

[0022] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An actuator arrangement for a four-bar linkage motorized table plate of a seat backrest, characterized in that, It includes: The avoidance slot is opened on the back of the front seat, the desk plate bearing plate is arranged in the avoidance slot and is fixed to the seat framework by bolts, the four-bar linkage mechanism, the small desk plate assembly and the connecting rod driving actuator, the four-bar linkage mechanism includes: the upper left connecting rod, the upper right connecting rod, the lower left connecting rod and the lower right connecting rod, the small desk plate assembly includes: the desk plate framework, the desk plate inner plate and the desk plate outer plate, one end of the upper left connecting rod and the upper right connecting rod is rotatably connected to the desk plate bearing plate, the other end is rotatably connected to the desk plate framework, one end of the lower left connecting rod and the lower right connecting rod is fixed to the driving shaft of the connecting rod driving actuator, the other end is rotatably connected to the desk plate framework through the stepped bolt, the desk plate inner plate is fixed to the desk plate framework through the bolt, the desk plate outer plate is clamped to the desk plate inner plate through the buckle, the connecting rod driving actuator drives the lower left connecting rod and the lower right connecting rod to drive the small desk plate assembly to fold or put down.

2. The four-bar linkage electric table plate of claim 1, wherein, The upper left connecting rod and the upper right connecting rod are driven connecting rods, the upper left connecting rod and the upper right connecting rod are fixed with self-lubricating sleeves at one end connected with the desk plate bearing plate, the self-lubricating sleeves of the upper left connecting rod and the upper right connecting rod are riveted to the desk plate bearing plate through rivets and plastic pads, and the upper left connecting rod and the upper right connecting rod rotate on the desk plate bearing plate through the self-lubricating sleeves.

3. The four-bar linkage electric table plate of claim 1, wherein, The lower left connecting rod and the lower right connecting rod are driving connecting rods, one end of the lower left connecting rod and the lower right connecting rod connected with the connecting rod driving actuator is provided with a mounting hole, and the mounting hole is provided with gear teeth engaged with the driving shaft of the connecting rod driving actuator.

4. The four-bar linkage electric table plate of claim 1, wherein, The connecting rod driving actuator includes: an actuator shell, a driving motor mounted in the actuator shell, a speed reducer connected with the driving motor, and a driving shaft of the speed reducer, wherein the driving shaft of the speed reducer extends from both sides of the actuator shell, the driving shaft is provided with gear teeth engaged with the mounting hole, the driving motor drives the driving shaft to rotate through the speed reducer, the driving shaft drives the lower left connecting rod and the lower right connecting rod to rotate, and further drives the small desk plate assembly.

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