Vehicle seat

Abstract

The present invention provides a vehicle seat, which includes a seat body, a base for supporting the seat body, a sliding mechanism and a rotating mechanism. The vehicle seat adopts a sliding mechanism and a rotating mechanism to cooperate to convert the orientation of the seat. During the conversion process, the sliding mechanism is used to move the seat body from a first position near the side wall of the vehicle along a direction perpendicular to the vehicle's travel direction to a second position for rotation. After the rotation is completed, the orientation of the seat body is switched from the same direction as the vehicle's travel direction to a direction perpendicular to the vehicle's travel direction, and then the sliding mechanism is used to push the seat body back to the first position near the side wall of the vehicle. The space in the aisle of the carriage can be fully utilized to rotate the seat body, avoiding the need to reserve a large spacing between two adjacent rows of seats for rotation. After the rotation, the seat body is reset along with the sliding mechanism and returns to the first position near the side wall of the vehicle, and does not occupy the space in the middle of the carriage.

Description

Technical Field

[0001] The invention belongs to the technical field of seats, and in particular relates to a vehicle seat. Background Art

[0002] In order to carry passengers, transportation vehicles are equipped with a certain number of seats for passengers to sit on. According to different passenger needs, the vehicle seats can be arranged in a horizontal or vertical direction: the seat direction is parallel to the length of the car, that is, the direction of the seat and the vehicle's travel, which is a horizontal arrangement; the seat direction is parallel to the width of the car, that is, the direction is perpendicular to the direction of the vehicle's travel, which is a vertical arrangement. The above two arrangements have their own advantages: the horizontal arrangement is suitable for less passenger flow and can make passengers more comfortable, and the vertical arrangement can leave more space in the middle of the vehicle for passengers to stand, so as to meet the passenger flow needs of the city during peak hours in the morning and evening. Usually, the seats are fixed in a horizontal or vertical arrangement before the vehicle leaves the factory, but the fixed-orientation seats are not adaptable enough and cannot be adjusted according to the actual needs of the operation, which has great limitations. The Chinese patent "A seat convertible in longitudinal and transverse directions" with application number CN202310185742.5 utilizes a parallel four-bar linkage mechanism between the armrest and the seat surface to fold the seat, then rotate it 90 degrees through the rotation center of the lower part, and then open the parallel four-bar linkage mechanism to unfold the seat from the folded state, thereby realizing the longitudinal and transverse conversion of the seat. The above scheme has restrictions on the seat structure, and the seat back and armrests need to be folded to complete the longitudinal and transverse steering of the seat. Soft-padded seats are often used in long-distance passenger vehicles. Soft-padded seats cannot be folded and the direction conversion scheme of the above patent cannot be used. The Chinese patent application number CN201410800661.2 provides a seat rotation mechanism, in which the seat is adjusted to rotate 180° using a disc bearing assembly, changing the seat orientation to be opposite to or in the same direction as the vehicle's travel direction. If the above patent solution is used to rotate the seat 90° to a longitudinal setting, due to the in-situ rotation method, sufficient rotation space must be ensured, and after the longitudinal setting, the seat back is far away from the side wall of the car, and the space in the middle of the car becomes smaller accordingly, which cannot achieve the purpose of reserving more space for passengers to stand after changing the seat orientation to the longitudinal direction. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a vehicle seat, which has no restrictions on the seat back and armrest structure, and can complete the lateral and longitudinal steering functions of the seat without folding the backrest and armrests, and the whole process is simple and fast.

[0004] A vehicle seat disclosed in the present invention comprises:

[0005] The seat body has a first state in the same direction as the vehicle's travel direction and a second state perpendicular to the vehicle's travel direction;

[0006] A base, used for supporting the seat body;

[0007] A sliding mechanism, arranged on the base and connected to the seat body, so that the seat body slides back and forth along the vertical direction of the vehicle, and has a first position and a second position;

[0008] The seat body is close to the vehicle side wall in the first position;

[0009] The rotating mechanism connects the seat body and the sliding mechanism so that the seat body rotates at the second position and is converted from the first state to the second state.

[0010] The vehicle seat provided by the present invention adopts a sliding mechanism and a rotating mechanism to convert the orientation of the seat. During the conversion process, the sliding mechanism is used to move the seat body from a first position close to the side wall of the vehicle along a direction perpendicular to the vehicle's travel direction to a second position for rotation. After the rotation is completed, the orientation of the seat body is switched from the same direction as the vehicle's travel direction to a direction perpendicular to the vehicle's travel direction, and then the sliding mechanism is used to push the seat body back to the first position close to the side wall of the vehicle.

[0011] Furthermore, it also includes a locking device, which locks the sliding mechanism at the starting position.

[0012] Furthermore, it also includes a limiting mechanism, which limits the seat body to the first state and the second state.

[0013] Furthermore, it also includes a first power device, which drives the sliding mechanism to slide.

[0014] Furthermore, it also includes a second power device, which drives the rotating mechanism to rotate.

[0015] Furthermore, it also includes a buffer device, which is arranged between the sliding mechanism and the base and is used for shock absorption and buffering when the seat body moves.

[0016] Furthermore, the base is arranged close to a side wall of the vehicle, and the length of the base is not greater than the width of the seat body.

[0017] Furthermore, when the seat body is in the second position, the second position is located on the center line of the seat body.

[0018] Furthermore, the seat body also has a third state which is opposite to the traveling direction of the vehicle, and the seat body is rotated at the second position to be converted from the first state to the third state.

[0019] Furthermore, it also includes a limiting mechanism, which limits the seat body to the first state, the second state and the third state.

[0020] The present invention has the following beneficial effects: the vehicle seat uses a sliding mechanism to move the seat body to the space in the aisle of the carriage, and then cooperates with the rotating mechanism to change the direction of the seat, so that the space in the aisle of the carriage can be fully utilized to rotate the seat body, and there is no need to reserve a large spacing between two adjacent rows of seats for rotation, and the space utilization rate is high. Moreover, after the rotation, the seat body returns to the first position close to the side wall of the vehicle with the sliding mechanism, and does not occupy the space in the middle of the carriage, and can reserve more passenger space to cope with peak passenger flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall exploded schematic diagram of a vehicle seat provided by some embodiments of the present invention,

[0022] Figure 2 is a schematic diagram of a vehicle seat turning process provided by some embodiments of the present invention,

[0023] Figure 3 is an exploded schematic diagram of a vehicle seat base provided in an embodiment of the present invention,

[0024] Figure 4 is a schematic diagram of the interior of the base of a vehicle seat provided in an embodiment of the present invention,

[0025] Figure 5 is a schematic diagram of the exterior of a base of a vehicle seat provided in an embodiment of the present invention,

[0026] Figure 6 is a schematic diagram of a second bracket of a vehicle seat provided in an embodiment of the present invention,

[0027] Figure 7 is a top view of a second bracket of a vehicle seat provided in an embodiment of the present invention,

[0028] Figure 8 yes Figure 7 AA section view,

[0029] Fig. 9 yes Figure 7 Middle BB section view,

[0030] Fig.10 This is the first bracket installation diagram.

[0031] Fig.11 It is a bottom view of the first bracket.

[0032] Description of reference numerals:

[0033] 1 seat body, 2 base, 3 sliding mechanism, 4 rotating mechanism, 5 locking device, 6 limiting mechanism, 7 buffer device,

[0034] 21 frame, 22 baffle, 31 guide rail groove, 32 guide rail, 33 second bracket, 331 outer bracket, 332 stabilizing block, 333 crossbeam, 41 first bracket, 42 shaft sleeve, 43 rotating shaft, 51 gear bar, 52 lock body, 61 limiting column, 62 pedal, 63 return spring, 64 first limiting plate, 65 second limiting plate. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings in combination with specific embodiments. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] like Figure 1 As shown, the present invention provides a vehicle seat, including a seat body 1, a base 2 for supporting the seat body 1, a sliding mechanism 3 and a rotating mechanism 4; wherein the seat body 1 has a first state in the same direction as the vehicle's travel direction and a second state perpendicular to the vehicle's travel direction; the sliding mechanism 3 is arranged on the base 2 and connected to the seat body 1, so that the seat body 1 slides back and forth in the vertical direction of the vehicle's travel, and has a first position and a second position; the seat body 1 is close to the vehicle side wall in the first position; the rotating mechanism 4 connects the seat body 1 and the sliding mechanism 3 so that the seat body 1 rotates at the second position from the first state to the second state. The specific steering process is as follows Figure 2As shown, the seat body 1 at the first position moves along the sliding mechanism 3 on the base 2 to the second position. During this movement process, the seat body 1 maintains a first state that is in the same direction as the vehicle's travel direction. After the seat body 2 reaches the second position, it is rotated and adjusted by the rotating mechanism 4 to be converted into a second state that is perpendicular to the vehicle's travel direction. Then, the seat body 2 maintains the second state and is moved back to the first position along the base 2 by the sliding mechanism 3, and the entire steering process is completed.

[0039] In a specific usage scenario, when the vehicle seat is a single seat, the first position and the second position overlap, and the vehicle seat rotates in situ to swap the orientation of the seat body 1. When the vehicle seat is a double seat, the second position is away from the side wall of the vehicle, and the seat body 1 is located in the aisle of the vehicle when it is in the second position. The sliding mechanism 3 is used to move the seat body 1 to the second position of the aisle of the vehicle, and then the rotation mechanism 4 is used to change the orientation of the seat. The space in the aisle of the vehicle can be fully utilized to rotate the seat body 1, and there is no need to reserve rotation space in the two adjacent rows of seats. Moreover, after the rotation, the seat body 1 is reset along with the sliding mechanism 3 and returns to the first position close to the side wall of the vehicle, which does not occupy the space in the middle of the vehicle. The space utilization rate is high, and more passenger space can be reserved to cope with peak passenger flow.

[0040] In the above embodiment, the vehicle seat uses a sliding mechanism 3 and a rotating mechanism 4 to cooperate to convert the orientation of the seat body 1. During the conversion process, the sliding mechanism 3 is used to move the seat body 1 from a first position near the side wall of the vehicle along a direction perpendicular to the vehicle's travel direction to a second position for rotation. After the rotation is completed, the orientation of the seat body 1 is switched from the same direction as the vehicle's travel direction to a direction perpendicular to the vehicle's travel direction, and then the sliding mechanism 3 is used to push the seat body back to the first position near the side wall of the vehicle. For example, the sliding mechanism 3 can use a linear guide rail, a ball guide rail, or other components that can perform linear reciprocating movement, and the rotating mechanism can use a small-sized rotating shaft or a more stable large-radius rotating disc bearing. Preferably, the vehicle seat also includes a first power device and a second power device, respectively, the first power device drives the sliding mechanism 3 to slide, and the second power device drives the rotating mechanism 4 to rotate. For example, a motor is used to drive the sliding member of the sliding mechanism 3 to perform reciprocating motion, which saves manpower during the seat steering process.

[0041] In some embodiments of the present invention, the vehicle seat further comprises a buffer device 7 , which is disposed between the sliding mechanism 3 and the base 2 and is used for shock absorption and buffering when the seat body 1 moves.

[0042] In some embodiments provided by the present invention, the seat body 1 also has a third state opposite to the direction of travel of the vehicle, and the seat body 1 rotates in the second position from the first state to the third state. In this embodiment, the direction of the seat body 1 can be turned 180 degrees, and the direction of the seat body 1 is consistent with the direction of travel of the vehicle to ensure a comfortable riding experience.

[0043] In some embodiments provided by the present invention, the vehicle seat further includes a locking device 5, which locks the seat body 1 in the starting position. When the seat body 1 needs to be moved, the sliding mechanism 3 is unlocked to prevent the seat body 1 from sliding relative to the base 2 at will.

[0044] In some embodiments provided by the present invention, the vehicle seat further includes a limiting mechanism 6, which limits the seat body 1 to a first state and a second state. Exemplarily, the limiting mechanism includes a first limiting groove, a second limiting groove and a limiting column; the first limiting groove and the second limiting groove are respectively arranged on the rotating mechanism 4, and the limiting column is arranged on the sliding mechanism 3; in the first state, the limiting column corresponds to the first limiting groove, and the seat body 1 is limited to the first state and no longer rotates; in the second state, the limiting column corresponds to the second limiting groove, and the seat body 1 is limited to the second state and no longer rotates. In other embodiments, when the seat body 1 of the vehicle seat has a third state that is opposite to the direction of travel of the vehicle, the limiting mechanism 6 limits the seat body 1 to the first state, the second state and the third state. Exemplarily, the limiting mechanism further includes a third limiting groove; the third limiting groove is also arranged on the rotating mechanism 4, and the limiting column corresponds to the third limiting groove, and the seat body 1 is limited to the third state and no longer rotates.

[0045] In some embodiments provided by the present invention, the base 2 is disposed close to the side wall of the vehicle, and the length of the base 2 is not greater than the width of the seat body 1. In this embodiment, when the vehicle seat is rotated 90° to be perpendicular to the length direction of the vehicle compartment and returned to the first position, it is avoided that the length of the base 2 exceeds the width of the seat body after rotation, which makes it impossible to sit.

[0046] In some embodiments provided by the present invention, when the seat body 1 is in the second position, the second position is located on the center line of the seat body 1. In this embodiment, when the vehicle seat rotates 90° perpendicular to the length direction of the vehicle and returns to the first position, the center of gravity of the seat body can fall on the center line of the base 2, so that the seat body can maintain a balanced state without the aid of other counterweights or support structures.

[0047] The conversion process of the vehicle seat is described in detail below with reference to the accompanying drawings.

[0048] like Figure 1As shown, a handle is provided on the top of the seat body 1 near the aisle of the vehicle for passengers to hold when standing and to pull horizontally when switching. A seat side armrest is provided on the side of the seat seat, and the seat surface is a double seat. Figure 3 , Fig.10 , Fig.11 As shown, the base 2 supporting the seat body 1 includes an internal frame 21 and a plurality of detachable baffles 22 arranged on the outer periphery of the frame. The frame 21 can be an aluminum profile welded frame or a stainless steel welded frame, which is used to provide stable support for the seat body 1. The sliding mechanism 3 adopts a linear guide rail. Two guide rail grooves 31 are respectively arranged on the long sides of the frame 21 perpendicular to the driving direction of the vehicle. The guide rail 32 corresponding to the guide rail groove 31 is connected to the first bracket 41 at the lower part of the seat body 1. The guide rail 32 slides along the guide rail groove 31. The sliding starting point of the guide rail 32 close to the side wall of the car is the first position of the seat body 1. The end point of the guide rail 32 sliding in the guide rail groove 31 is the second position of the seat body 1. The guide rail 32 drives the seat body 1 thereon to slide along the base 2 between the first position and the second position. Figure 3-5 As shown, a locking device 5 is provided on the base 2, which is a stop bar 51 on the upper side of the end baffle 22 and a lock body 52 thereon. When the lock body 52 is locked, the stop bar 51 blocks the movement of the guide rail 32 on the guide rail groove 31, so that the seat body 1 is stabilized at the first position. When the lock body 52 is unlocked, the guide rail 32 can move on the guide rail groove 31, so that the seat body 1 moves to the second position. A second bracket 33 is provided between the two guide rails 32. The second bracket 33 translates together with the two guide rails 32. The second bracket 33 includes an outer bracket 331 that serves as a supporting connection and a Japanese-shaped frame that is provided inside the outer bracket 331 and is surrounded by four stabilizing blocks 332 and a cross beam 333 to support and balance the seat body 1 thereon. The above structure serves as a counterweight balancing function. The shaft sleeve 42 of the rotating mechanism 4 is provided on the cross beam 333. As shown Figure 6 As shown, a buffer rubber is provided on one side of the outer bracket 331 close to the side wall of the carriage as a buffer device 7, as shown in FIG. Figure 7-11As shown, a limiting column 61 of a limiting mechanism 6 is provided on the side of the outer bracket 331 away from the side wall of the carriage, the limiting column 61 is connected to the upper end of a pedal 62, the pedal 62 is rotatably connected to the outer bracket 331, and a return spring 63 is also provided between the pedal 62 and the outer bracket 331. When the pedal 62 is stepped on, the return spring 63 is stretched, and the limiting column 61 connected to the upper end of the pedal 62 moves downward and disengages from the first limiting plate 64 on the first bracket 41, so that the first bracket 41 is released from the limiting state, and the first bracket 41 can rotate together with the rotating shaft 43 provided on the first bracket 41. The first bracket 41, the shaft sleeve 42, and the rotating shaft 43 constitute a rotating mechanism 4. There is also a second limiting plate 65 on the first bracket 41, and the angle between the second limiting plate 65 and the first limiting plate 64 is 90°. When the first bracket 41 drives the seat body 1 thereon to rotate to the second state, the second limiting plate 65 corresponds to the limiting column 61, and the pedal 62 is released, and the limiting column 61 abuts against the second limiting plate 65, so that the seat body 1 on the first bracket 41 remains motionless in the second state. The limiting column 61, the pedal 62, the return spring 63, the first limiting plate 64, and the second limiting plate 65 constitute a limiting mechanism 6 to limit the first state and the second state of the seat body 1.

[0049] The entire rotation process is as follows: unlock the lock body 52, remove the gear bar 51, and the second bracket 33 connected to the guide rail 32 drives the first bracket 41 and the seat body 1 thereon to move along the guide rail groove 31 to the second position, step on the pedal 62, so that the limit column 61 disengages from the first limit plate 65, and the first bracket 41 and the seat body 1 rotate around the rotation axis 43 to the second state, release the pedal 62, the limit column 61 abuts against the second limit plate 66, and then the seat body 1 and the first bracket 41 in the second state are moved together with the guide rails 32 on both sides of the second bracket 33 back to the first position close to the lateral side wall, finally, install the gear bar 51, lock the lock body 52, and the seat body 1 in the first position is switched from the first state to the second state.

[0050] The above is a detailed introduction to a vehicle seat provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vehicle seat, characterized in that: include: The seat body (1) has a first state in the same direction as the vehicle's travel direction and a second state perpendicular to the vehicle's travel direction; A base (2) for supporting the seat body (1); A sliding mechanism (3) is arranged on the base (2) and connected to the seat body (1), so that the seat body (1) slides back and forth along the vertical direction of the vehicle, and has a first position and a second position; The seat body (1) is close to the vehicle side wall in the first position; A rotating mechanism (4) connects the seat body (1) and the sliding mechanism (3), so that the seat body (1) rotates at the second position and is converted from the first state to the second state.

2. The vehicle seat according to claim 1, characterized in that It also comprises a locking device (5), wherein the locking device (5) locks the sliding mechanism (3) at the starting position.

3. The vehicle seat according to claim 1, characterized in that It also includes a limiting mechanism (6), which limits (6) the seat body (1) to the first state and the second state.

4. The vehicle seat according to claim 1, characterized in that It also comprises a first power device, which drives the sliding mechanism (3) to slide.

5. The vehicle seat according to claim 1, characterized in that It also includes a second power device, which drives the rotating mechanism to rotate.

6. The vehicle seat according to claim 1, characterized in that It also comprises a buffer device (7), which is arranged between the sliding mechanism (3) and the base (2) and is used for shock absorption and buffering when the seat body (1) moves.

7. The vehicle seat according to claim 1, characterized in that The base (2) is arranged close to the side wall of the vehicle, and the length of the base (2) is not greater than the width of the seat body (1).

8. The vehicle seat according to claim 1, characterized in that When the seat body (1) is in the second position, the second position is located on the center line of the seat body (1).

9. The vehicle seat according to any one of claims 1 to 8, characterized in that: The seat body (1) also has a third state which is opposite to the direction of travel of the vehicle, and the seat body (1) is rotated at the second position to be converted from the first state to the third state.

10. The vehicle seat according to claim 9, characterized in that It also comprises a limiting mechanism (6), wherein the limiting mechanism (6) limits the seat body (1) to the first state, the second state and the third state.

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