Business seat movement framework capable of being unfolded and lying flat at large angle

Abstract

The utility model discloses a business seat movement framework capable of being unfolded and laid flat at a large angle, and relates to the technical field of high-speed rail seats. A business seat movement framework capable of being unfolded and laid flat at a large angle comprises a seat base, an upper supporting plate, a track plate, a seat frame movement plate, a backrest, a rocker arm and a horizontal movement mechanism. The upper supporting plate is fixed on the seat base; the horizontal moving mechanism is arranged on the upper supporting plate; the track plates are fixed on the upper supporting plate in pairs at intervals; track grooves are distributed in the outer side of the track plate in the length direction. The track groove comprises a straight-line-section track groove and an arc-section track groove which are connected with each other; and one side, far away from the linear section track groove, of the arc section track groove extends upwards. According to the business seat movement framework capable of being unfolded and lying flat at a large angle, through the matched design of all the structures, the unexpected situation that a passenger possibly slides down due to the fact that a seat cushion moves forwards is avoided, and meanwhile the comfort and safety of seat adjustment are improved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rail seat technology, specifically to a business seat motion frame that can be unfolded and reclined at a large angle. Background Technology

[0002] Currently, some high-speed rail business class seats can be tilted at a large angle to meet different passenger comfort requirements, such as sitting, semi-reclining and lying down.

[0003] Regarding the aforementioned seat adjustment method, the inventor believes that in the process of adjusting a normal seat from a sitting to a reclining position, the seat cushion moves forward and unfolds horizontally. If the passenger's sitting posture is incorrect, the passenger's buttock support point may shift forward during the forward movement and horizontal unfolding of the seat cushion, making it easy for the passenger to slip off the front of the seat cushion.

[0004] Therefore, the inventors believe that how to design a solution to the above problems is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a business chair motion frame that can unfold and recline at a large angle, thereby solving the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a business chair motion frame that can unfold and lie flat at a large angle, including: a seat base, an upper support plate, a track plate, a seat frame motion plate, a backrest, a rocker arm, and a horizontal movement mechanism.

[0008] The upper support plate is fixed to the seat base; the horizontal movement mechanism is set on the upper support plate;

[0009] Track plates are fixed in pairs at intervals on the upper support plate; track grooves are distributed along the length of the track plates on their outer side; the track grooves include connected straight track grooves and arc track grooves; the arc track grooves extend upward on the side away from the straight track grooves.

[0010] Each track plate has a seat frame motion plate on its outer side; the top of the two seat frame motion plates is used to mount the seat cushion.

[0011] The front side of the seat frame moving plate is connected to the drive end of the horizontal moving mechanism, and the rear side of the seat frame moving plate is slidably connected in the track groove through a limiting slide.

[0012] The lower end of the backrest is hinged to the seat frame moving plate; the upper end of the rocker arm is hinged to the backrest, and the lower end of the rocker arm is hinged to the rear side of the seat frame moving plate.

[0013] Preferably, the limiting slide includes a rolling element and a rotating shaft that mates with the rolling element; one end of the rotating shaft is fixed to the seat frame moving plate; the rolling element is one of a roller, a bearing, or a bushing.

[0014] Preferably, both ends of the track groove are fixed with blocks to limit the movement boundary of the sliding component.

[0015] Preferably, the horizontal moving mechanism includes a rack mounting plate, a rack, a gear, and a drive motor;

[0016] The rack mounting plate slides linearly inside the track plate; the rack is fixed to the bottom of the rack mounting plate;

[0017] The drive motor is fixed on the upper support plate, and the main shaft of the drive motor is fixed with gears; the gears and racks on the same side are meshed and connected for transmission.

[0018] Preferably, the front side of the seat frame moving plate is connected to the rack mounting plate in the horizontal moving mechanism via a rotating shaft.

[0019] Preferably, the rack mounting plate and the track plate slide together via a linear guide and a slider.

[0020] The present invention provides a business seat frame that can be laid flat at a large angle, which has the following advantages: The present invention designs a business seat frame that can be laid flat at a large angle. Through the coordinated design of various structures, it solves the problem that the seat cushion may slip off the seat if it moves forward, and at the same time improves the comfort and safety of seat adjustment. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the present invention from the first angle;

[0022] Figure 2 This is a structural schematic diagram of the present invention from a second angle;

[0023] Figure 3 This is a structural schematic diagram of the present invention from a third angle;

[0024] Figure 4 This is a schematic diagram of the structure of the present invention after the leg support plate on the front side of the seat has been removed;

[0025] Figure 5 This utility model Figure 4 A magnified view of part A in the image;

[0026] Figure 6 This utility model Figure 3A magnified view of part B in the image. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] See Figures 1-6 To address the problems mentioned in the background section, this utility model provides a business chair frame that can be laid flat at a large angle to solve the aforementioned technical problems. The technical solution is as follows:

[0029] A business chair frame that can be laid flat at a large angle includes: a seat base 1, an upper support plate 2, a track plate 3, a seat frame motion plate 4, a backrest 5, a rocker arm 6, and a horizontal movement mechanism.

[0030] The upper support plate 2 is fixed to the seat base 1; the horizontal moving mechanism is set on the upper support plate 2;

[0031] Track plates 3 are fixed in pairs at intervals on the upper support plate 2; track grooves 3-1 are distributed on the outer side of track plates 3 along their length direction; track grooves 3-1 include connected straight segment track grooves 3-11 and arc segment track grooves 3-12; the arc segment track grooves 3-12 extend upward on the side away from the straight segment track grooves 3-11.

[0032] Each track plate 3 has an independent seat frame motion plate 4 on its outer side; the top of the two seat frame motion plates 4 is used to assemble the seat cushion; the structure of the seat cushion is not shown in the attached drawings.

[0033] The front side of the seat frame motion plate 4 is connected to the drive end of the horizontal moving mechanism, and the rear side of the seat frame motion plate 4 is slidably connected to the track groove 3-1 through the limiting slide 4-1;

[0034] The lower end of the backrest 5 is hinged to the seat frame moving plate 4; the upper end of the rocker arm 6 is hinged to the backrest 5, and its lower end is hinged to the rear side of the seat frame moving plate 4.

[0035] The present invention provides a method for adjusting the motion frame of a business chair that can be fully reclined at a large angle, as follows:

[0036] 1. Control the horizontal movement mechanism to drive the seat frame movement plate 4 (the seat cushion is fixed on the seat frame movement plate 4) to move forward. During the forward movement of the seat frame movement plate 4, its movement path is restricted by the track groove 3-1. That is, the seat frame movement plate 4 moves forward along the straight section track groove 3-11 first, and the seat cushion moves horizontally first.

[0037] 2. After entering the arc track groove 3-12, the limiting slide 4-1 slides along the upward arc track, causing the four sides of the seat frame to move forward and slightly rise, so that the front of the seat cushion will not extend too far forward when lying down. Instead, the upward movement raises the support point and prevents the passenger from slipping.

[0038] 3. Because the lower end of the backrest 5 is hinged to the seat frame moving plate 4, the upper end of the rocker arm 6 is hinged to the backrest 5, and the lower end of the rocker arm 6 is hinged to the rear side of the seat frame moving plate 4, the seat frame moving plate 4 and the backrest 5 form a linkage mechanism.

[0039] As the seat frame motion plate 4 moves forward, the rocker arm 6 drives the backrest 5 to tilt backward, forming a linkage operation of "slightly lifting the seat cushion + tilting the backrest back", which unfolds the backrest 5 and the seat cushion on the seat in sequence to form the requirements of semi-reclining and reclining sitting positions.

[0040] In this embodiment, the limiting slide 4-1 includes a rolling element and a rotating shaft that is connected to the rolling element; one end of the rotating shaft is fixed on the seat frame moving plate 4; the rolling element is one of a roller, a bearing or a bushing.

[0041] In this embodiment, both ends of the track groove 3-1 are fixed with blocks 8 to limit the moving boundary of the sliding member 4-1; the block 8 is made of polyurethane block.

[0042] In this embodiment, the horizontal movement mechanism includes a rack mounting plate 7, a rack 7-1, a gear 8, and a drive motor; the drive motor is not labeled in the accompanying drawings.

[0043] The rack mounting plate 7 slides linearly inside the track plate 3; the rack 7-1 is fixed to the bottom of the rack mounting plate 7.

[0044] The drive motor is fixed on the upper support plate 2, and the main shaft 9-1 of the drive motor is fixed with a gear 8; the gear 8 and rack 7-1 on the same side are meshed and connected for transmission.

[0045] The horizontal moving mechanism drives the gear 8 to mesh with the rack 7-1 via the drive motor, and combined with the guide rail slider, causes the seat frame moving plate 4 to complete the forward movement operation.

[0046] In this embodiment, the front side of the seat frame moving plate 4 is connected to the rack mounting plate 7 in the horizontal moving mechanism via a rotating shaft 9.

[0047] In this embodiment, the rack mounting plate 7 and the track plate 3 slide together via a linear guide and a slider.

[0048] The present invention provides a business seat frame that can be laid flat at a large angle, which has the following advantages: The present invention designs a business seat frame that can be laid flat at a large angle. Through the coordinated design of various structures, it solves the problem that the seat cushion may slip off the seat if it moves forward, and at the same time improves the comfort and safety of seat adjustment.

[0049] The device embodiments described above are merely illustrative. The components described as separate parts may or may not be physically separate. The components shown as components may or may not be physical components; they may be located in one place or distributed across multiple network components. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A large angle deployment flat bed business class seat movement skeleton, characterized in that, The utility model relates to a seat frame motion plate, a backrest, a rocker arm, a horizontal moving mechanism, a track plate, a seat base and an upper support plate. The upper support plate is fixed on the seat base, and the horizontal moving mechanism is arranged on the upper support plate. The track plates are fixed on the upper support plate in pairs and at intervals, and track grooves are distributed on the outer sides of the track plates along the length direction of the track plates. The track grooves comprise connected straight-line segment track grooves and circular-arc segment track grooves, and the circular-arc segment track grooves extend upwards away from the side of the straight-line segment track grooves. The seat frame motion plates are arranged on the outer sides of the track plates, and the top portions of the two seat frame motion plates are used for assembling seat cushions. The front side position of the seat frame motion plate is connected with the driving end of the horizontal moving mechanism, and the rear side position of the seat frame motion plate is slidably connected in the track groove through a limiting sliding piece. The lower end of the backrest is hingedly connected to the seat frame motion plate, the upper end of the rocker arm is hingedly connected to the backrest, and the lower end of the rocker arm is hingedly connected to the rear side position of the seat frame motion plate.

2. The large-deployment flat business class seat motion skeleton according to claim 1, characterized in that, The limiting sliding piece comprises a rolling piece and a rotating shaft connected with the rolling piece.

3. The large-deployment flat business class seat motion skeleton according to claim 1, characterized in that, One end of the rotating shaft is fixed on the seat frame motion plate, and the rolling piece is one of a roller, a bearing or a bushing.

4. The large-deployment flat-lay business class seat motion skeleton of claim 1, wherein, The two ends of the track groove are fixed with stop blocks to limit the movement of the limiting sliding piece. The horizontal moving mechanism comprises a rack mounting plate, a rack, a gear and a driving motor. The rack mounting plate linearly slides in the inner side of the track plate, and the rack is fixed on the bottom of the rack mounting plate.

5. The large-deployment flat business class seat motion skeleton according to claim 4, characterized in that, The driving motor is fixed on the upper support plate, the main shaft of the driving motor is fixed with the gear, and the gears and the racks at the same side are in meshing transmission connection.

6. The large-deployment flat business class seat motion skeleton according to claim 4, characterized in that, The front side position of the seat frame motion plate is connected with the rack mounting plate of the horizontal moving mechanism through the rotating shaft. The rack mounting plate and the track plate are slidably connected through a wire rail and a sliding block.

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