A driving device for a business seat on a vehicle

Abstract

An embodiment of the present invention discloses a driving device for a business seat on a vehicle, which includes a base, on which a rack plate is horizontally fixed; a slide rail arranged on the top surface of the base; a main board; a gear mechanism installed at the first end of the main board, and the gear mechanism meshes with the rack plate; a seat plate side plate, the first end of the seat plate side plate is movably connected to the gear mechanism, and the bottom of the second end of the seat plate side plate is movably connected to the main board through a support rod; a backrest plate, the bottom end of the backrest plate is connected to the seat plate side plate and the gear mechanism through a transmission rod; a force-bearing plate, the bottom end of the force-bearing plate is connected to the gear mechanism, and the middle part of the force-bearing plate is cross-hinged with the transmission rod. Through the cooperation of the gear mechanism, the rack plate, the force-bearing plate and the transmission rod, the backrest plate drives the seat plate side plate to move horizontally during the rotation process in the three-dimensional space, so that the backrest plate and the seat plate side plate move simultaneously, playing a role in stretching the human body, thereby improving the comfort of the seat.

Description

Technical Field

[0001] The present invention relates to the field of driving devices for transportation vehicles, and particularly to a driving device for a business seat on a transportation vehicle. Background Art

[0002] Currently, the seats on transportation vehicles are usually of traditional types, with a seat and a backrest. The seat is generally fixed, and its top surface is parallel to the horizontal plane or is an arc-shaped surface that is concave downward for greater comfort of the customer. For business seats on transportation vehicles such as those on airplanes and high-speed trains, the backrests can be rotated and adjusted so that the backrest can contact the back of the passenger and provide support to the back, improving the passenger's riding experience.

[0003] Currently, during the movement of high-speed train and aviation business seats, when the backrest rotates, the back of the passenger may come into contact with it. In this way, as the backrest pushes the back of the passenger to move, it will cause a feeling of pinching the back to the human body, easily causing discomfort to the rider. Whether in a sitting, lying, or reclining position, the long-term non-conformity between the seat and the human body is likely to cause discomfort to the human body. Summary of the Invention

[0004] The purpose of the present invention is to provide a driving device for a business seat on a transportation vehicle to solve the above technical problems.

[0005] The technical problems solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A driving device for a business seat on a transportation vehicle, comprising

[0007] a base, on which a rack plate is horizontally fixed;

[0008] a slide rail, arranged on the top surface of the base, and the slide rail is located on one side of the rack plate;

[0009] a main board, movably arranged on the slide rail;

[0010] a gear mechanism, installed at the first end of the main board, and the gear mechanism meshes with the rack plate;

[0011] a seat plate side plate, the first end of the seat plate side plate is movably connected to the gear mechanism, the second end bottom of the seat plate side plate is movably connected to the main board through a support rod, and the top of the support rod is connected to the gear mechanism through a fifth power rod;

[0012] a backrest plate, the bottom end of the backrest plate is connected to the seat plate side plate and the gear mechanism through a transmission rod;

[0013] a force-bearing plate, the bottom end of the force-bearing plate is connected to the gear mechanism, and the middle part of the force-bearing plate is cross-hinged with the transmission rod.

[0014] Preferably, the gear mechanism includes a first gear, a second gear, a third gear and a sector gear mounted on the first end of the main board through a gear shaft. The second gear meshes with the rack plate and the first gear. The first gear meshes with the third gear. The third gear meshes with the sector gear. The sector gear is connected to the transmission rod.

[0015] Preferably, the transmission rod includes a cross bar and a first power rod. The top end of the first power rod is hinged to the backrest plate. The bottom end of the first power rod is hinged to the top end of the cross bar. The cross bar is connected to the third gear through the gear shaft.

[0016] Preferably, the top end of the force-bearing plate is hinged to the top of the back side of the backrest plate through a second power rod. The bottom end of the force-bearing plate is fixedly connected to the sector gear.

[0017] Preferably, the sector gear is connected to the side plate of the seat pan through a fourth power rod and a transition plate. The sector gear is connected to the first end of the fourth power rod. The transition plate is connected to the second end of the fourth power rod. The transition plate is connected to the side plate of the seat pan.

[0018] Preferably, the bottom end of the support rod is connected to the main board. The top end of the support rod is connected to the side plate of the seat pan through a third power rod. The third power rod is hinged to the fifth power rod.

[0019] Preferably, when the second gear rotates, the second gear rotates on the rack plate, and the main board slides horizontally on the slide rail.

[0020] Preferably, the included angle between the side surface of the backrest plate facing the side plate of the seat pan and the top surface of the side plate of the seat pan is 70-180°.

[0021] Beneficial effects: Through the cooperation of the gear mechanism, the rack plate, the force-bearing plate and the transmission rod, the backrest plate drives the lateral displacement of the side plate of the seat pan during the rotation in the three-dimensional space, so that the backrest plate and the side plate of the seat pan can move simultaneously, playing a role in stretching the human body, thus avoiding the pinching feeling on the human body caused by the rotation of the backrest. During and after the movement of the backrest plate and the side plate of the seat pan, the seat is more ergonomic, improving the comfort of the seat. The driving and linkage of the whole seat are good, the structure design is ingenious, easy to operate, improving the stability of the seat, and having multiple functions of adjusting the cushion angle, the front and rear position and the backrest angle of the business seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall front structural schematic diagram of the present invention;

[0023] Figure 2 Explosion structure schematic diagram of the present invention;

[0024] Figure 3 Three-dimensional structure schematic diagram of the present invention;

[0025] Figure 4 Side view structure schematic diagram of the present invention.

[0026] In the figure: 1 - first gear; 2 - second gear; 3 - rack plate; 4 - slide rail; 5 - main board; 6 - third gear; 7 - sector gear; 8 - fourth power rod; 9 - transition board; 10 - seat plate side plate; 11 - fifth power rod; 12 - support rod; 13 - third power rod; 14 - cross bar; 15 - first power rod; 16 - second power rod; 17 - backrest plate; 18 - base; 19 - stress plate. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0029] Next, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present invention.

[0030] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the present invention provides a driving device for a business seat on a vehicle, including

[0031] a base 18, on which a rack plate 3 is horizontally fixed;

[0032] a slide rail 4, arranged on the top surface of the base 18, and the slide rail 4 is located on one side of the rack plate 3;

[0033] a main board 5, movably arranged on the slide rail 4;

[0034] a gear mechanism, installed at the first end of the main board 5, and the gear mechanism meshes with the rack plate 3;

[0035] a seat plate side plate 10, that is, the seat end of the seat, the first end of the seat plate side plate 10 is movably connected to the gear mechanism, and the bottom of the second end of the seat plate side plate 10 is movably connected to the main board 5 through a support rod 12;

[0036] A backrest plate 17, namely the backrest end of the seat, the bottom end of the backrest plate 17 is connected to the seat plate side plate 10 and the gear mechanism through a transmission rod;

[0037] A force-bearing plate 19, the bottom end of the force-bearing plate 19 is connected to the gear mechanism, and the middle part of the force-bearing 19 is cross-hinged with the transmission rod.

[0038] The advantages of the present invention are as follows:

[0039] Through the cooperation of the gear mechanism, the rack plate, the force-bearing plate and the transmission rod, the backrest plate drives the lateral displacement of the seat plate side plate during the rotation process in the three-dimensional space, so that the backrest plate and the seat plate side plate move simultaneously, playing a role in stretching the human body, thus avoiding the pinching feeling on the human body when the backrest rotates. During and after the movement of the backrest plate and the seat plate side plate, the seat is more ergonomic, improving the comfort of the seat. The driving performance and linkage of the whole seat are good, the structure design is ingenious, easy to operate, improving the stability of the seat, and having multiple functions of adjusting the cushion angle, the front and rear position of the business seat and the angle of the backrest.

[0040] As a preferred embodiment of the present invention, the gear mechanism includes a first gear 1, a second gear 2, a third gear 6 and a sector gear 7 installed at the first end of the main board through a gear shaft, and the second gear 2 meshes with the rack plate 3 and the first gear 1.

[0041] The first gear 1 meshes with the third gear. Specifically, the first gear 1 is a coaxial double gear, divided into a large gear and a small gear. The large gear meshes with the second gear 2, and the small gear meshes with the third gear 3.

[0042] The third gear 6 meshes with the sector gear 7. Specifically, the third gear 6 includes a coaxial double gear, including a main gear and a sub-gear. The outer diameter of the main gear is larger than the outer diameter of the sub-gear. The main gear meshes with the small gear, and the sub-gear is located on the back of the main gear (not shown in the figure), and the sub-gear meshes with the sector gear. The sector gear 7 is connected to the transmission rod.

[0043] As a preferred embodiment of the present invention, the transmission rod includes a cross bar 14 and a first power rod 15. The top end of the first power rod 15 is hinged to the backrest plate 17, the bottom end of the first power rod 15 is hinged to the top end of the cross bar 14, and the cross bar 14 is connected to the third gear 6 through a gear shaft. Manually controlling the rotation of the cross bar 14 can drive the rotation of the third gear 6.

[0044] As a preferred embodiment of the present invention, the top end of the force-bearing plate 19 is hinged to the top of the back side of the backrest plate 17 through a second power rod 19, and the bottom end of the force-bearing plate 19 is fixedly connected to the sector gear 7.

[0045] As a preferred embodiment of the present invention, the sector gear 7 is connected to the seat plate side plate 10 through a fourth power rod 8 and a transition plate 9. The sector gear 7 is connected to the first end of the fourth power rod 8, the transition plate 9 is connected to the second end of the fourth power rod 8, and the transition plate 9 is connected to the seat plate side plate 10.

[0046] As a preferred embodiment of the present invention, the bottom end of the support rod 12 is connected to the main board 5, and the top end of the support rod 12 is connected to the seat plate side plate 10 through the third power rod 13.

[0047] It can be supplemented that the transition plate 9 is L-shaped. The top end of the transition plate 9 is connected to the third power rod 13 through a fifth power rod 11 for transmitting the rotational force to improve the linkage between the power rods. The fifth power rod 11 is arranged at the bottom end of the seat plate side plate 10 and can transmit.

[0048] As a preferred embodiment of the present invention, the main board 5 can slide horizontally on the slide rail 4. Under the interaction of the second gear 2 and the rack plate 3, the main board 5 can slide on the slide rail 4, so that the seat plate side plate 10 moves left and right, which is equivalent to the front and back displacement of the seat.

[0049] Specifically, a slider is provided at the bottom end of the main board 5, and the slider can slide on the slide rail 4 to make the sliding of the main board and the seat plate side plate smoother.

[0050] As a preferred embodiment of the present invention, the included angle between the side surface of the backrest plate 17 facing the seat plate side plate 10 and the top surface of the seat plate side plate 10 is 70-180°.

[0051] The working principle of the driving device of the business seat of the present invention is as follows:

[0052] (1) The cross bar 14 is the manual control device of the backrest. Manually rotate the cross bar 14, the cross bar 14 drives the first power rod 15 through the main board 5 to drive the backrest plate 17 to rotate, and the cross bar 14 drives the third gear 6 to rotate, so that the sector gear 7 drives the force receiving plate 19 to rotate, and then transmits the rotational force to the backrest plate 17 through the second power rod 16, so that the backrest plate 17 obtains the rotational driving force to adjust the angle of the business seat backrest;

[0053] (2) The first gear 1 is the central device for adjusting the position and angle of the seat cushion of the business seat. By driving (manually rotating the extension of the rotating shaft of the first gear 1 or driving by a motor), the first gear 1 rotates, the first gear 1 drives the second gear 2 to rotate, so that the second gear 2 displaces on the rack plate 3, and the slider at the bottom end of the main board 5 displaces along the length direction of the rack plate or the slide rail on the slide rail 4, so as to achieve the purpose of adjusting the position of the seat cushion part of the business seat;

[0054] (3) The left end of the seat plate side plate 10 is hinged to the main board 5 by a hinge shaft. By driving the first gear 1 to rotate, the first gear drives the third gear to rotate, the third gear 6 drives the sector gear 7 to rotate, and the sector gear 7 transmits the rotational force to the fourth power rod 8, the transition plate 9, and the seat plate side plate 10 in sequence. The left end of the seat plate side plate 10 receives the rotational force, and through the transition plate 9 and the fifth power rod 11, the third power rod 13 and the support rod 12 are rotated, so that the seat plate side plate 10 rotates forward or backward with the hinge shaft as the rotation axis, completing the angle adjustment of the seat plate side plate 10, causing one side of the seat cushion of the seat to tilt up, so as to make the user's sitting posture more comfortable.

[0055] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving device for a business seat on a vehicle, characterized in that, it includes a base, on which a rack plate is horizontally fixed; a slide rail, arranged on the top surface of the base, and the slide rail is located on one side of the rack plate; a main board, movably arranged on the slide rail; a gear mechanism, installed at the first end of the main board, and the gear mechanism meshes with the rack plate; a seat plate side plate, the first end of the seat plate side plate is movably connected to the gear mechanism, the bottom of the second end of the seat plate side plate is movably connected to the main board through a support rod, and the top of the support rod is connected to the gear mechanism through a fifth power rod; a backrest plate, the bottom end of the backrest plate is connected to the seat plate side plate and the gear mechanism through a transmission rod; a force-bearing plate, the bottom end of the force-bearing plate is connected to the gear mechanism, and the middle of the force-bearing plate is cross-hinged with the transmission rod; the gear mechanism includes a first gear, a second gear, a third gear and a sector gear installed at the first end of the main board through a gear shaft, the second gear meshes with the rack plate and the first gear, the first gear meshes with the third gear, the third gear meshes with the sector gear, and the sector gear is connected to the transmission rod; the transmission rod includes a cross bar and a first power rod, the top end of the first power rod is hinged to the backrest plate, the bottom end of the first power rod is hinged to the top end of the cross bar, and the cross bar is connected to the third gear through the gear shaft; the cross bar is a manual control device for the backrest of the chair; when the cross bar is manually rotated, the cross bar drives the first power rod to drive the backrest plate to rotate through the main board, and the cross bar drives the third gear to rotate, so that the sector gear drives the force-bearing plate to rotate, and then the rotational force is transmitted to the backrest plate through the second power rod, so that the backrest plate obtains a rotational driving force to adjust the angle of the backrest of the business seat; the first gear is the central device for adjusting the position and angle of the seat cushion of the business seat; when the first gear rotates, the first gear drives the second gear to rotate, so that the second gear displaces on the rack plate, and the slider at the bottom end of the main board displaces on the slide rail along the length direction of the rack plate or the slide rail, so as to achieve the purpose of adjusting the position of the seat cushion part of the business seat; the left end of the seat plate side plate is hinged to the main board through a hinge shaft. By driving the first gear to rotate, the first gear drives the third gear to rotate, the third gear drives the sector gear to rotate, and the sector gear sequentially transmits the rotational force to the fourth power rod, the transition plate and the seat plate side plate. The left end of the seat plate side plate receives the rotational force, and through the transition plate and the fifth power rod, the third power rod and the support rod rotate, so that the seat plate side plate rotates forward or backward with the hinge shaft as the rotation axis, completing the angle adjustment of the seat plate side plate.

2. The driving device for a business seat on a vehicle according to claim 1, characterized in that, The top end of the force-bearing plate is hinged to the top of the back side of the backrest plate through the second power rod, and the bottom end of the force-bearing plate is fixedly connected to the sector gear.

3. The driving device of a business seat on a vehicle according to claim 1, wherein, the sector gear is connected to the side plate of the seat pan through a fourth power rod and the transition plate. The sector gear is connected to the first end of the fourth power rod, the transition plate is connected to the second end of the fourth power rod, and the transition plate is connected to the side plate of the seat pan.

4. The driving device of a business seat on a vehicle according to claim 1, wherein, the bottom end of the support rod is connected to the main board, the top end of the support rod is connected to the side plate of the seat pan through a third power rod, and the third power rod is hinged to the fifth power rod.

5. The driving device of a business seat on a vehicle according to claim 1, wherein, when the second gear rotates, the second gear rotates on the rack plate, and the main board slides horizontally on the slide rail.

6. The driving device of a business seat on a vehicle according to claim 1, wherein, the included angle between the side surface of the backrest plate facing the side plate of the seat pan and the top surface of the side plate of the seat pan is 70-180°.

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