High-speed rail seat

Abstract

The utility model discloses a high-speed rail seat and aims to overcome the defect that the posture of an existing high-speed rail seat is adjusted by rotating a back of the seat backwards, and the back of the seat rotating backwards occupies the space in front of passengers in the back row. The chair comprises a fixed seat, a chair back frame and a cushion frame, the chair back frame is hinged to the cushion frame, a first guide rail is arranged at the top position, corresponding to a chair back, of the fixed seat, two second guide rails are arranged on the fixed seat, the second guide rails are inclined, the rear ends of the second guide rails are high, the front ends of the second guide rails are low, the chair back frame is connected with the first guide rail in a sliding mode, and the cushion frame is connected with the second guide rails in a sliding mode. A locking structure is further arranged between the fixed seat and the linkage structure, the locking structure has a locking state and an unlocking state, in the unlocking state, the seat cushion frame obliquely moves downwards, the chair back frame moves downwards along with the seat cushion frame, and the included angle between the chair back frame and the seat cushion frame is increased. The top of the chair back inclines downwards, and the bottom of the chair back extends forwards along with the cushion frame, so that the included angle between the chair back and the cushion is increased, and the front space of rear passengers is prevented from being invaded.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train seats, and more specifically, it relates to a high-speed train seat. Background Technology

[0002] High-speed rail seats differ from those on regular trains; they are typically more independent, providing passengers with a more comfortable experience. Since train seats are in contact with passengers for extended periods, their comfort is strongly correlated with the passenger experience.

[0003] To improve passenger comfort, existing high-speed rail seats can be adjusted in shape by rotating the backrest to meet passenger needs. However, this method intrudes on the space in front of rear passengers, potentially leading to conflicts between them.

[0004] Given the shortcomings of related technologies, this application aims to provide a high-speed rail seat with a linkage mechanism that can provide a more comfortable position within a limited space to meet passengers' needs for adjusting their seat posture. Summary of the Invention

[0005] This invention overcomes the shortcomings of existing high-speed rail seats, which adjust the seat posture by rotating the backrest backward, thus occupying the front space of rear passengers. It provides a high-speed rail seat that can adjust both the backrest and seat cushion without encroaching on the front space of rear passengers, providing a more comfortable riding experience for passengers in a limited space.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A high-speed rail seat includes a fixed seat and a linkage structure. The linkage structure includes a backrest frame and a seat cushion frame, which are hinged together. The fixed seat has a first guide rail at the top position corresponding to the backrest, which is arranged along the length of the backrest. The fixed seat has two second guide rails at the front-to-back positions of the seat cushion frame near both ends, which are inclined and have a higher rear end and a lower front end. The backrest frame and the first guide rail are slidably connected, and the seat cushion frame and the second guide rails are slidably connected. A locking structure is also provided between the fixed seat and the linkage structure. The locking structure has a locked state and an unlocked state. In the unlocked state, the seat cushion frame moves downwards at an angle, and the backrest frame moves downwards with the seat cushion frame, increasing the angle between them.

[0008] The fixing seat in this application is fixed. It is located on the outside of the backrest frame and seat cushion frame. The seat cushion and backrest are made of flexible material and are respectively mounted on the backrest frame and seat cushion frame. This application uses a different method than the existing rearward-rotating backrest to adjust the seat posture. Instead, it increases the angle between the backrest and seat cushion by tilting the top of the backrest downwards and extending the bottom of the backrest forward along with the seat cushion frame, thus adjusting the seat posture by sacrificing the space in front of the occupant.

[0009] This method effectively utilizes the space in front of the passenger's legs and maintains a distance between the head and the front seat, thus providing a better experience than existing technologies that involve rotating the seat back.

[0010] When in use, after unlocking the locking mechanism, the passenger slides forward using their hips while pushing the backrest backward. Once the desired position is reached, the locking mechanism is locked to complete the seat adjustment. Similarly, after unlocking the locking mechanism, the passenger can slide backward using their hips while leaning forward to adjust the seat.

[0011] Preferably, the two second guide rails are arranged in parallel. The seat cushion remains parallel as it moves forward.

[0012] Preferably, the locking structure includes a gas spring and a push-button switch. The gas spring is hinged to the seat frame, and the other end of the gas spring is hinged to a fixed base. The fixed base is also equipped with a push-button switch, which can switch the gas spring between locked and unlocked states. In the locked state, the gas spring remains elastic. When the seat frame applies force to the gas spring, the gas spring obeys Hooke's Law, producing a slight deformation and eventually reaching a balance between the elastic force and the external force, maintaining the current seat posture. In the unlocked state, it remains plastic, and its telescopic end moves with the seat frame.

[0013] Preferably, the push-button switch switches the state of the gas spring via a pull spring. The pull spring allows the push-button switch to be positioned away from the gas spring, making it easier for passengers to access the switch.

[0014] Preferably, the push-button switch is rotatably connected to the fixed base, and the push-button switch is elastically connected to the fixed base via a spring. These features necessitate that the push-button switch overcome the elastic force to trigger, preventing accidental activation. Furthermore, the push-button switch automatically resets after being released from external force (operator's force), switching the gas spring back to the locked state.

[0015] Preferably, the backrest frame and seat cushion frame are each equipped with rotatable rollers, which are tactilely connected to the first and second guide rails. This sliding mechanism between the rollers and the guide rails (first and second guide rails) reduces resistance and extends the lifespan of the seat.

[0016] Preferably, the fixed base is provided with a first guide rail and a second guide rail on both the left and right sides; the backrest frame and the seat cushion frame are provided with rotatable rollers on both the left and right sides, and the rollers are rotatably connected to the first guide rail and the second guide rail. By providing the first guide rail and the second guide rail on both sides, the movement of the backrest frame and the seat cushion frame can be made smoother, reducing wear on related components.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The angle between the top of the backrest and the seat cushion is increased by tilting the top of the backrest downward and extending the bottom of the backrest forward along with the seat cushion frame. The seat posture is adjusted by sacrificing the space in front of the passenger.

[0019] (2) This method can effectively utilize the space in front of the passenger's legs and maintain the distance between the head and the front seat, thus providing a better experience than existing technologies that rotate the seat back.

[0020] (3) The backrest and seat cushion move synchronously, making adjustment more convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the removal of the chair back and seat cushion according to this utility model;

[0022] Figure 2 This is a schematic diagram of the relationship between the second guide rail and the seat cushion frame of this utility model;

[0023] Figure 3 This is a schematic diagram showing the connection between the seat frame, gas spring, and fixing base of this utility model;

[0024] Figure 4 This is a schematic diagram of the push button switch and gas spring of this utility model;

[0025] In the picture:

[0026] 1. Fixed base, 2. Backrest frame, 3. Seat cushion frame, 4. Hinge joint, 5. First guide rail, 6. Second guide rail, 7. Roller, 8. Gas spring, 9. Push button switch, 10. Zipper. Detailed Implementation

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

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationship of each component or element of the present disclosure, and do not specifically refer to any component or element in the present disclosure, and should not be construed as a limitation to the present disclosure.

[0031] In the present disclosure, terms such as "fixed connection", "connected", "connected to" should be understood in a broad sense, which may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For those related scientific research or technical personnel in the field, the specific meaning of the above terms in the present disclosure can be determined according to specific circumstances, and should not be construed as a limitation to the present disclosure.

[0032] Embodiment:

[0033] Refer Figure 1 As shown, a high-speed rail seat includes a fixed seat 1 and a linkage structure. The linkage structure includes a backrest frame 2 and a seat cushion frame 3. Among them, the backrest frame 2 and the seat cushion frame 3 are hinged, and there is a hinge joint 4 between them. A first guide rail 5 is provided at the top position of the fixed seat 1 corresponding to the backrest, and the first guide rail 5 is arranged along the length direction of the backrest.

[0034] Refer Figure 2 As shown, two second guide rails 6 are provided at the positions near both ends of the fixed seat 1 corresponding to the front and rear directions of the seat cushion frame 3. The second guide rails 6 are inclined with the rear end higher than the front end, the backrest frame 2 is slidably connected to the first guide rail 5, and the seat cushion frame 3 is slidably connected to the second guide rail 6. Among them, the two second guide rails 6 are arranged in parallel. During the forward movement of the seat cushion frame 3, the seat cushion frame 3 remains parallel.

[0035] Refer Figure 1 and Figure 2 As shown, the backrest frame 2 and the seat cushion frame 3 are respectively provided with rotatably arranged rollers 7, and the rollers 7 are in rolling connection with the first guide rail 5 and the second guide rail 6. By means of the sliding mode of the rollers 7 and the guide rails (the first guide rail ⑤ and the second guide rail ⑥), the resistance is reduced, and the service life of the seat is improved. In some embodiments, the first guide rail 5 and the second guide rail 6 are provided on both the left and right sides of the fixed seat 1; the rollers 7 rotatably arranged are provided on both the left and right sides of the backrest frame 2 and the seat cushion frame 3, and the rollers 7 are in rolling connection with the first guide rail Figure 1 and the second guide rail Figure 2 . By arranging the first guide rail 5 and the second guide rail 6 on both sides, the movement of the backrest frame 2 and the seat cushion frame 3 can be made smoother, and the wear of related components can be reduced.

[0036] Refer Figure 3As shown, a locking structure is further provided between the fixed seat 1 and the linkage structure. The locking structure has a locked state and an unlocked state. In the unlocked state, the seat cushion frame 3 moves obliquely downward, and the backrest frame 2 follows the seat cushion frame 3 downward and the included angle with the seat cushion frame 3 increases.

[0037] Among them, the locking structure includes a gas spring 8 and a button switch 9. The seat cushion frame 3 is hinged with the gas spring 8, and the other end of the gas spring 8 is hinged with the fixed seat 1. A button switch 9 is also provided on the fixed seat 1, and the button switch 9 can switch the locked state and the unlocked state of the gas spring 8. The gas spring 8 remains elastic in the locked state. When the seat cushion frame 3 applies force to the gas spring 8, the gas spring 8 satisfies Hooke's law, produces a small deformation, and finally reaches the balance of elastic force and external force, maintaining the current seat posture; it remains plastic in the unlocked state, and its telescopic end moves with the seat cushion frame 3.

[0038] See Figure 4 As shown, specifically, the button switch 9 switches the state of the gas spring 8 through a pull cord 10. The pull spring can set the button switch 9 at a position far from the gas spring 8, so that it is easier for the rider to touch the button switch 9. The button switch 9 is rotatably connected to the fixed seat 1, and the button switch 9 is elastically connected to the fixed seat 1 through a spring. The above features enable the button switch 9 to be triggered by overcoming the elastic force to avoid accidental touch, and the button switch 9 will automatically reset after leaving the external force (the force applied by the operator), switching the state of the gas spring 8 back to the locked state.

[0039] The fixed seat 1 in this application is fixed. The fixed seat 1 is arranged outside the backrest frame 2 and the seat cushion frame 3. The seat cushion and the backrest are made of flexible materials and are respectively arranged on the backrest frame 2 and the seat cushion frame 3. This application adopts a different way from the existing way of rotating the backrest backward to adjust the seat posture. It adopts the way that the top of the backrest inclines downward and the bottom of the backrest extends forward following the seat cushion frame 3 to increase the included angle with the seat cushion, and adjusts the seat posture by sacrificing the space in front of the rider.

[0040] [[ID=(14)]]This method can effectively utilize the space in front of the passenger's legs and maintain the distance from the front row seat at the head position, so it is superior to the existing technology of rotating the backrest backward in terms of experience.

[0041] When in use, after unlocking the locking structure, the rider slides forward through the hip position, and at the same time pushes backward with the backrest. After reaching the ideal position, lock the locking structure to complete the adjustment of the seat; similarly, it is also possible to slide backward through the hip position after unlocking the locking structure, and at the same time lean forward with the body to complete the adjustment of the seat.

[0042] The above-described embodiments are only preferred solutions of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A high-iron seat, characterized by, The linkage structure comprises a backrest frame and a cushion frame, the backrest frame and the cushion frame are hingedly connected, the fixed seat is provided with a first guide rail corresponding to the top position of the backrest, the first guide rail is arranged along the length direction of the backrest, the fixed seat is provided with two second guide rails corresponding to the front and rear direction close to the two end positions of the cushion frame, the second guide rails are inclined and the rear end is higher than the front end, the backrest frame and the first guide rail are slidingly connected, the cushion frame and the second guide rail are slidingly connected, the fixed seat and the linkage structure are further provided with a locking structure, the locking structure has a locking state and an unlocking state, in the unlocking state, the cushion frame is inclined and moves downward, the backrest frame moves downward along with the cushion frame and the included angle with the cushion frame increases.

2. A high-iron seat as claimed in claim 1, characterized in that The two second guide rails are arranged in parallel.

3. The high-iron seat of claim 1, wherein, The locking structure comprises a gas spring and a button switch, the cushion frame is hingedly provided with the gas spring, the other end of the gas spring is hingedly connected with the fixed seat, the fixed seat is further provided with the button switch, and the button switch can switch the locking state and the unlocking state of the gas spring.

4. A high train seat according to claim 3, wherein The state of the gas spring is switched by the zipper of the button switch.

5. A high train seat according to claim 4, wherein The button switch is rotationally connected to the fixed seat, and the button switch is elastically connected to the fixed seat by a spring.

6. The high-iron seat of claim 1, wherein, The backrest frame and the cushion frame are respectively provided with a rotationally arranged roller, and the roller is rollingly connected with the first guide rail and the second guide rail.

7. The high-iron seat of claim 1, wherein, The left and right sides of the fixed seat are respectively provided with the first guide rail and the second guide rail; the left and right sides of the backrest frame and the cushion frame are respectively provided with a rotationally arranged roller, and the roller is rollingly connected with the first guide rail and the second guide rail.

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