Vehicle seat and vehicle

Abstract

The present disclosure relates to a vehicle seat including: a seat body including a backrest portion and a cushion portion; a vehicle seat includes a seat body, at least one rail portion, and at least one rail engagement portion, where one of the rail portion and the rail engagement portion is disposed on the seat body, and where the other of the rail portion and the rail engagement portion is disposed to support the seat body, where the rail portion and the rail engagement portion support the seat body. The seat body is movable by means of cooperation of a rail joint and a rail portion, in the present disclosure, a front portion of the rail portion extends forward and upward, in which the front portion of the seat body is raised as the seat body moves along the rail portion when an emergency stop occurs during a vehicle traveling process.

Description

Technical Field

[0001] The present disclosure relates to vehicle seats and vehicles having such seats. Background Art

[0002] In the field of automobile safety, forward collision is one of the most common types of accidents, posing a serious threat to the safety of passengers. In particular, the potential harm that vehicle seats may cause to passengers' necks in forward collisions has attracted widespread attention. In such collisions, the passenger's body will move forward rapidly, and the seat belt system strives to limit this movement to reduce the distance the passenger rushes forward. However, even with the restraint of the seat belt, the passenger's head will still rush forward due to inertia. This dynamic effect may cause the neck to be severely stretched and twisted, thereby increasing the risk of neck injury.

[0003] In a forward collision, the main injury to the neck is due to the inertia of the head causing the cervical spine to overextend, which is called "neck crush injury" in traffic accident injuries. Neck crush injury may not only cause soft tissue damage (such as muscle and ligament strain), but also cause cervical fracture or intervertebral disc damage, which may cause long-term pain and functional impairment. Therefore, improving the protection ability of vehicle seats in forward collisions is the key to reducing the risk of neck injuries.

[0004] Although existing seat designs have improved safety by introducing more efficient seat belt pretensioners, adjustable headrests, and seat structure optimization, there are still limitations in practical applications. Although these measures can reduce the impact of collisions on occupants to a certain extent, there is still room for improvement in neck protection. Therefore, there is an urgent need to develop a new vehicle seat design that can more effectively reduce the impact force on the neck in a forward collision, such as by dynamically adjusting the position of the seat and headrest to adapt to the collision force, thereby minimizing neck injuries. Such progress will have a significant impact on improving the overall safety of vehicle occupants. Utility Model Content

[0005] The present disclosure is intended to provide a vehicle seat, comprising: a seat body, which includes a backrest portion and a cushion portion; at least one track portion, and at least one track joint portion, wherein one of the track portion and the track joint portion is arranged on the seat body, and wherein the other of the track portion and the track joint portion is arranged to support the seat body, wherein the seat body is movable by means of the cooperation of the track joint portion and the track portion. In the present disclosure, the front portion of the track portion extends forward and upward, wherein when an emergency stop occurs during the travel of the vehicle, the front portion of the seat body tilts up when the seat body moves along the track portion.

[0006] The track portion can be arranged on the vehicle body to support the seat body, or it can be arranged on the seat body itself and support the seat body through the track joint portion arranged on the vehicle body. In the following description of this specification, the track portion arranged on the vehicle body and the track joint portion arranged on the seat body are mainly described as examples. It should be clear that the following description is also applicable to the case where the track joint portion is arranged on the vehicle body and the track portion is arranged on the seat body.

[0007] According to the present disclosure, the front tilting of the seat body can be achieved by the forward and upward extension of the track portion. Through the cooperation of the track joint and the track portion, the track joint or a part of the track joint located in front of the seat moves upward while moving forward. At the same time, since the middle and rear sections of the track portion do not have an upward extension or only have a relatively small upward extension, or even have a downward extension while extending forward, the track joint or a part of the track joint located behind the seat does not move upward under the action of the middle and rear sections of the track portion. Through the upward movement of the track joint or a part of the track joint in front of the seat and the non-upward movement or less upward movement of the track joint or a part of the track joint behind the seat, partial rotation of the seat, i.e., the front tilting of the seat body is achieved.

[0008] According to this, the sitting position of the occupant can be changed from a normal sitting position to a semi-reclining or fully-reclining sitting position. Therefore, when the occupant is impacted, the weight of the head will be transferred along the spine to the buttocks and further to the seat cushion. With this design, the following impact on the head during a forward collision can be avoided, which is usually caused by the body being restrained by the seat belt while the head continues to move forward.

[0009] Therefore, by tilting the front part of the seat body, an upward component of force can be generated when the occupant's sitting posture changes, that is, when the seat moves forward and upward, thereby achieving the purpose of changing and reducing the impact force on the person in the seat, especially the lateral impact force on the neck.

[0010] Preferably, the track portion is smoothly constructed in the extension direction. Additionally, the track portion is symmetrically constructed, that is, when only one track portion is provided, the track portion is laterally centered, and when two track portions are provided, the two track portions are substantially symmetrical about the center line of the seat, thereby providing stable lateral support for the seat.

[0011] Preferably, both the front rail portion and the rear rail portion of the rail portion extend upward.

[0012] Further preferably, at least two track joints may be provided for one track. In this case, the at least two track joints are positioned along the track. Therefore, relative to the seat body, at least one track joint is closer to the front of the seat, while at least one track joint is closer to the rear of the seat. In a normal state, i.e., in a state where no collision occurs, the track joint at the rear of the seat is positioned on the rear track portion, preferably close to the highest point at the rear end; while the track joint at the front of the seat is positioned near the front track portion. Thus, in the event of a collision, the track joint near the front of the seat moves forward and upward under the guidance of the front track portion, while the track joint near the rear of the seat moves forward and downward under the guidance of the rear track portion, thereby accelerating the rotation of the seat and helping to quickly allow the occupant to attain a lying or semi-lying position.

[0013] In an embodiment according to the present disclosure, the track portion can be constructed in one section, that is, the track portion is continuous and curved. Alternatively, the track portion can be in two sections, that is, the two track joints are respectively arranged on the corresponding sections of the track portion. Similarly, for other situations with more than two track joints, similar arrangements can also be made. Alternatively, when a two-section track portion is adopted, for example, the two track segments of the track portion can also be respectively linear, but the two track segments are arranged at an angle to each other. Preferably, the front track segment extends at an angle to the horizontal plane.

[0014] Alternatively, when two-segment or multi-segment track portions are provided, the segments of each track portion can be located at different positions in the vehicle transverse direction. Thus, for example, two or three track segments can be provided at the front portion, and one or two track segments can be provided at the rear portion.

[0015] Alternatively, only one rail joint may be provided for a rail portion, and the rail portion extends in an arc shape, wherein the rail joint extends along the rail portion for at least 20 percent, preferably at least 50 percent, of the length of the rail portion, thereby providing more stable support for the seat body.

[0016] Here, it is further preferred that, in the event of a collision, the portion of the only one track joint portion near the front of the seat moves forward and upward under the guidance of the front track portion, while the portion of the only one track joint portion near the rear of the seat moves forward and downward under the guidance of the rear track portion, thereby achieving the rotation of the seat and helping to quickly enable the occupant to attain a lying or semi-lying position.

[0017] Alternatively, in these embodiments, only the front locking piece may be used to lock the front track engaging portion of the seat in a normal state, because the rear track engaging portion of the seat is already close to the rear end of the track and is naturally limited by the rear end of the track portion.

[0018] The above structure of the track joint and track part makes the seat more ergonomic when adjusted, providing better support and comfort for the passengers. The upward design of the front track part helps to reduce the forward momentum by changing the sitting posture of the passengers in emergency braking or collision, thereby reducing the impact on the neck and head of the passengers and increasing the safety protection of the passengers.

[0019] In a preferred embodiment, the vehicle seat is constructed to cope with a collision or emergency braking situation. The definition of emergency stop includes not only the physical collision of the vehicle with other objects, but also the emergency braking operation performed to avoid the collision. In the event of a collision, this design is very meaningful for the driver and other passengers. And during the emergency braking operation, such a design is also particularly important for other passengers besides the driver. This design takes into account that the safety of the passengers is of paramount importance in these extreme situations. Preferably, the seat is equipped with a sensing system that can immediately initiate the aforementioned displacement of the seat at the moment of collision or emergency braking, and preferably may include a series of safety mechanisms, as specifically mentioned below, to maximize the protection of the passengers.

[0020] In a preferred embodiment, the track portion may be a common slide rail, which may have a C-shaped groove cross-section design, and the track joint portion matched therewith may be a roller or a slider, etc. The track portion may also be a rack track, and the track joint portion matched therewith may be a gear, etc. Further preferably, the track portion may be a double C-shaped groove design to further improve the structural rigidity of the track, and the track joint portion adopts a ball bearing instead of a traditional pulley or direct contact design, which significantly reduces friction and makes the movement of the seat easier.

[0021] In a preferred embodiment, a rear stopper is specially provided on the track portion of the vehicle seat. The main purpose of this design is to prevent the seat from accidentally moving backwards during the vehicle driving process or in the event of a collision, thereby increasing the safety of the passengers. The rear stopper can effectively limit the backward movement of the seat on the track, ensuring that the seat remains in a preset safe position, thereby ensuring the stability and safety of the passengers under various driving conditions.

[0022] In a preferred embodiment, the track portion of the vehicle seat is equipped with a front locking member and a sensing device (which may be part of the aforementioned sensing system), and wherein the front locking member is released in response to a sensor signal or a sensor signal processed by a control unit in the event of a collision detected by the sensing device. The front locking member is designed so that it can be quickly released upon receiving an emergency stop signal. This mechanism allows the seat to be adjusted to a safer position or posture in an emergency, such as a collision or emergency braking, by the quick release of the front locking member; while improving the stability of the seat in normal conditions.

[0023] In a preferred embodiment, the vehicle seat body includes an additional center of gravity counterweight and / or other components pre-installed to meet the functions of the seat. The additional center of gravity counterweight and / or other components pre-installed to meet the functions of the seat are provided for the purpose of adjusting the center of gravity of the seat. Here, "other components for meeting the functions of the seat" refers to components that are not usually provided or integrated in the seat, such as components that are usually provided in the center console or armrest, such as air-conditioning vents, etc. By integrating these components and / or additional center of gravity counterweight under the seat body. On the one hand, the stability of the seat is enhanced during normal driving, and on the other hand, in the event of a collision or emergency braking, the additional counterweight or component can control the speed or acceleration of the seat movement or rotation. That is, when the center of gravity of the seat is lower, the speed and acceleration of the seat movement or rotation along the track will be faster, so that the occupant is placed in a lying or semi-lying position as soon as possible, thereby reducing the pressure on the occupant's neck.

[0024] The present disclosure also relates to a vehicle comprising the vehicle seat. In addition, the above-mentioned configurations and advantages applicable to the seat are also applicable to the vehicle equipped with the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present disclosure are explained in detail with reference to the accompanying drawings.

[0026] Figure 1 A schematic diagram of a vehicle seat according to the present disclosure is shown.

[0027] Figure 2 A schematic diagram of a vehicle seat according to the present disclosure after a collision is shown.

[0028] Figure 3 A schematic diagram showing a variation of a vehicle seat according to the present disclosure is shown. DETAILED DESCRIPTION

[0029] The "forward" or "forward" referred to in this article is the direction the passenger faces when the seat is in normal use (the seat is installed facing the direction of travel), that is, the direction of travel of the vehicle; "upward" refers to the height direction of the seat when it is in normal use.

[0030] Figure 1A vehicle seat 100 is shown in a structural diagram, comprising: a seat body 1, which includes a backrest portion 11 and a cushion portion 12, wherein a track joint portion 13 is provided on the seat body. In addition, the vehicle seat 100 further includes a track portion 2 paired with the track joint portion 13 of the seat body 1, which is configured to support the seat body 1. In the illustrated embodiment, the seat body 1 is movably arranged on the track portion 2 by means of the track joint portion 13. In the illustration, only one track portion 2 is shown, and it can be understood by those skilled in the art that more than one track portion 2 is provided in the seat. At the same time, two track joints 13 are shown for one track portion in the illustration. It can also be understood by those skilled in the art that more than two track joints, or only one track joint 13, can be provided.

[0031] In the illustrated embodiment, the track portion 2 is exemplarily constructed in a curved shape. Alternatively, the track portion may be in other curved shapes, such as arc shapes, or in a combined straight line shape, as long as the front portion of the seat body 1 can tilt upward relative to the rear portion in the vertical height direction when the seat body 1 moves forward. Of course, when considering the direction of the curve, it is also necessary to ensure that the track joint portion 13 can move smoothly on the track portion without getting stuck.

[0032] exist Figure 1 In the illustrated embodiment, the vehicle seat may have or be associated with a sensing device 3. The sensing device 3 is generally referred to as a collision sensor or an impact sensor, which may be an acceleration sensor or a pressure sensor. The sensing device 3 is preferably arranged at the front end of the vehicle, including behind the bumper and in the engine compartment, which are ideal locations for detecting frontal collisions. The sensing device 3 is connected to a control unit 4, which is responsible for receiving the sensor's signal and determining whether the front locking member 5 needs to be released. In this way, the vehicle seat can react quickly at the moment of a collision, providing critical moment protection for the occupants.

[0033] Combination Figure 2 It can be seen that when a collision occurs, the sensing device 3 recognizes the occurrence of the collision and transmits a signal to the control unit 4. After the control unit determines that the collision has occurred, it controls the front locking member 5 to be released. At this time, the seat body 1 continues to move forward under the action of inertia. Due to the forward and upward extension of the track part 2, the seat body 1 is also tilted and rotated upward. In this way, the posture of the seat body 1 is maintained in a semi-lying or nearly lying position, thereby protecting the neck of the occupant.

[0034] In the illustrated embodiment, a rear stopper 6 is provided on the track portion 2. The rear stopper can stop the rearward movement of the track joint portion 13. Figure 3 In the example shown, this is due to the positioning of the rail joint 13 at the rear end of the rail portion 2 .

[0035] In a further preferred embodiment, the front locking member 5 and the rear stop member 6 are both movably and adjustably arranged on the track portion 2. Thus, the front locking member 5 and the rear stop member 6 can also be used as components for seat adjustment in daily use.

[0036] In the illustrated embodiment, the track portion 2 is configured as a slide rail with a C-shaped groove cross section, and the paired track joint portion 13 is configured as a slider, which achieves a relatively simple design. Alternatively, other forms of cooperation between the track and the joint portion are also feasible.

[0037] In the illustrated embodiment, an additional center of gravity counterweight 7 is arranged in the cushion portion 12 of the seat body 1. Of course, alternatively, other components other than those used to meet the seat function can also be used as counterweights. In this way, the center of gravity of the seat can be lowered. The center of gravity position of the seat will greatly affect the dynamic response of the seat movement or rotation during a collision. Therefore, in the preferred embodiment, on the one hand, the importance of weight reduction to vehicle design is taken into account, and on the other hand, a reasonable center of gravity distribution is also taken into account to achieve the seat's response according to demand.

[0038] Figure 3 A preferred variant of the present disclosure is shown. Most of the scheme still refers to Figure 1 and Figure 2 The difference here is that Figure 1 and 2 The rear end of the track section 2 in the horizontal extension is different, Figure 3 The rear end of the rail portion 2 in the vehicle body extends horizontally backward and also extends upward. Figure 3The figure further shows the positioning relationship between the track joint 13 and the track part 2 of the seat in the normal use state of the seat (i.e., the state without collision). The track joint 13 at the rear of the seat is positioned on the rear track part of the track part 2, preferably close to the highest point at the rear end; while the track joint 13 at the front of the seat is positioned behind the front track part, i.e., not yet at the track part extending upward or at the track part not extending significantly upward (in the embodiment, the track joint 13 at the front of the seat may also be already at the track part extending significantly upward, as long as there is enough track section to continue to extend significantly upward). Thus, when a collision occurs, the front end of the seat moves forward and upward under the guidance of the front track part, while the rear end of the seat moves forward and downward under the guidance of the rear track part, thereby realizing the tilting of the front part of the seat more quickly, i.e., realizing the rapid adjustment of the seat posture. It should be noted here that although the front locking member 5 and the rear stopper 6 are still used in this embodiment to position the seat in the normal position, only the front locking member 5 may be used for positioning. The rearward positioning of the seat can be performed by means of the rear end point of the track portion 2 itself.

[0039] In the embodiment shown above, the track portion 2 is arranged on the vehicle body or vehicle frame, and the track joint portion 13 is arranged on the seat body. In the embodiment not shown, the above statement is also applicable in the case where the track joint portion is arranged on the vehicle body and the track portion is arranged on the seat body.

[0040] As can be seen from the above, the present disclosure improves the prior art, provides a seat that can be relatively movably installed on a vehicle, and protects the neck of the occupant with the above concept. Although advantageous embodiments have been selected to illustrate the present disclosure, those skilled in the art will understand that various changes and modifications can be made therein without departing from the scope of the present disclosure defined in the claims.

Claims

1. A vehicle seat, comprising: A seat body, comprising a backrest portion and a seat cushion portion; at least one track portion, and at least one rail joint, wherein one of the track portion and the track engaging portion is disposed on the seat body, and wherein the other of the track portion and the track engaging portion is configured to support the seat body, The seat body is movable by means of the cooperation between the track joint part and the track part. The invention is characterized in that the front part of the track part extends forward and upward, wherein when an emergency stop occurs during the travel of the vehicle, the front part of the seat body tilts up when the seat body moves along the track part.

2. The vehicle seat according to claim 1, wherein: For one rail portion, at least two rail joints are provided.

3. The vehicle seat according to claim 2, wherein the front track portion and the rear track portion of the track portion both extend upward, and in the event of a collision, the track joint portion near the front of the seat moves forward and upward under the guidance of the front track portion, while the track joint portion near the rear of the seat moves forward and downward under the guidance of the rear track portion.

4. The vehicle seat according to claim 1, wherein: For one rail portion, only one rail joint is provided, and the rail portion extends in an arc shape, wherein the rail joint extends along the rail portion for at least 20 percent of the length of the rail portion.

5. The vehicle seat according to claim 4, wherein the front track portion and the rear track portion of the track portion both extend upward, whereby in the event of a collision, a portion of the track joint portion near the front of the seat moves forward and upward under the guidance of the front track portion, while a portion of the track joint portion near the rear of the seat moves forward and downward under the guidance of the rear track portion.

6. The vehicle seat according to claim 1, wherein the track portion is configured as a one-stage continuous curve; or the track portion is configured as a two-stage or multi-stage track portion, and the stages in the track portion are each straight or curved.

7. The vehicle seat of claim 1, wherein a rear stop is provided on the track portion.

8. The vehicle seat according to claim 1, wherein a front locking member and a sensing device are provided on the track portion, and wherein in the event that the sensing device detects a collision, the front locking member is released in response to a sensor signal or a sensor signal processed via a control unit.

9. The vehicle seat of claim 1, wherein the seat body comprises an additional center-of-gravity weight and / or pre-installed components for satisfying functions other than those of the seat.

10. A means of transport, characterized in that: The vehicle comprises a vehicle seat according to any one of claims 1 to 9.

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