A back row seat for avoiding rear portion collision injury neck
阅读说明：本技术 一种用于避免后部碰撞伤害头颈的后排座椅 (A back row seat for avoiding rear portion collision injury neck ) 是由 邹利军 王建勋 于大川 刘彦博 沙磊 王赫 齐晓明 王聪 侯坤 赵文 于 2020-05-07 设计创作，主要内容包括：本发明涉及一种用于避免后部碰撞伤害头颈的后排座椅,包括座椅靠背和头枕,所述的头枕包括枕部和支撑枕部的杆部,所述的座椅靠背内部骨架上固定连接腔体的外壳,所述的腔体内有气体发生器和活塞,所述的气体发生器的上端与所述头枕的杆部的下端连接,所述的活塞位于气体发生器的下端的腔体内。本发明的后排座椅动作灵敏、具有能有效的使乘员免受挥鞭伤的防鞭打机构,解决了现有的防鞭打装置动作不灵敏,防护效果差的问题。(The invention relates to a back-row seat for preventing head and neck from being injured by rear collision, which comprises a seat backrest and a headrest, wherein the headrest comprises a pillow part and a rod part for supporting the pillow part, a shell of a cavity is fixedly connected to an internal framework of the seat backrest, a gas generator and a piston are arranged in the cavity, the upper end of the gas generator is connected with the lower end of the rod part of the headrest, and the piston is positioned in the cavity at the lower end of the gas generator. The rear-row seat of the invention has sensitive action, has the anti-whiplash mechanism which can effectively prevent passengers from being injured by whiplash, and solves the problems of insensitive action and poor protection effect of the existing anti-whiplash device.)
1. The utility model provides a back row seat for avoiding rear portion collision injury neck, includes seatback and headrest, its characterized in that: the headrest comprises a pillow part and a rod part for supporting the pillow part, a shell of a cavity is fixedly connected to the inner framework of the seat backrest, a gas generator and a piston are arranged in the cavity, the upper end of the gas generator is connected with the lower end of the rod part of the headrest, and the piston is located in the cavity at the lower end of the gas generator.
2. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the air bag control system further comprises an air bag control unit, and the air bag control unit is located in the middle channel.
3. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the safety airbag control system further comprises a headrest position sensor, and the headrest position sensor is in signal connection with the safety airbag control unit.
4. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the automobile safety airbag device is characterized by further comprising an acceleration sensor, wherein the acceleration sensor is located on the rear anti-collision cross beam and is in signal connection with the safety airbag control unit.
5. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the seat occupancy sensor device comprises a seat occupancy sensor and an air bag control unit, wherein the seat occupancy sensor is connected with the air bag control unit through signals.
6. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the safety belt lock device is characterized by further comprising a safety belt lock sensor, wherein the safety belt lock sensor is in signal connection with the safety air bag control unit.
7. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the bottom end of the rod part of the headrest is provided with an anti-falling clamping bamboo shoot structure.
8. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: the anti-falling snap bamboo shoot structure is a three-petal reed.
9. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: when the headrest is at the lowest position, the length of the rod part of the headrest entering the cavity is 90 mm.
10. A back row seat for avoiding injury to the head and neck from a rear impact, characterized in that: when the headrest is at the lowest position, the distance between the piston and the highest point of the backrest is 55 mm.
Technical Field
The invention relates to an automobile safety component, in particular to a rear seat for avoiding injury to a head and neck caused by rear collision.
Background
The headrest is used for relieving neck fatigue of drivers and passengers during travel, and the adjustable and detachable headrest is provided for some vehicle types.
The process of whiplash injury is that when the automobile is impacted from the back, the following typical first step of action can be rapidly and continuously carried out on passengers in the automobile, because the backrest moves forwards relative to the back of the human body, the arched spine in a normal state is pushed straight by the forward thrust from the backrest, and the bent and straight spine drives the head of the human body to vertically lift; secondly, when the seat pushes the torso of the occupant forward, the unrestrained head tends to fall down behind under inertia, which causes the neck to change shape, assume an S-shape for the first time and bend back. And thirdly, the trunk is bound by a safety belt, the head driven by the neck swings forwards after colliding with the headrest, the head and the neck move like the swinging of a whip, and the neck is severely changed to cause the damage to the neck and soft tissues thereof, namely the whiplash injury.
Neck injuries resulting from a rear-end collision accident are commonly referred to as Whiplash injuries (Whiplash) or injuries associated with Whiplash movements. Various automobile collision forms can cause whiplash injury, and the tail collision is easier to cause neck injury of passengers. According to the analysis of a German rear-end collision database, the low-speed rear-end collision with the vehicle speed change between 10km/h and 20km/h before and after the collision is most likely to cause neck whiplash injury. When the automobile is subjected to rear-end collision, the automobile body generates forward acceleration, the seat back generates acting force on the trunk of a passenger to enable the passenger to move obliquely upwards, and the head of the passenger is not in contact with the seat, so that the passenger temporarily does not receive the forward acting force applied by the restraint system and can move backwards relative to the trunk until the neck of the passenger reaches the movement limit when the head of the passenger is in contact with the headrest. The movement of the head and neck is similar to the whiplash action, and the resulting injury is called whiplash injury. Subsequently, the head bounces, moving forward relative to the torso. Many rear-end collisions are relatively slow in collision speed and relatively low in strength, do not cause the vehicle body to be damaged to a great extent, and are easily misunderstood that passengers do not have much serious injury, and actually a low-speed rear-end collision very easily causes serious passenger neck injury, wherein most of the serious passenger neck injury is whiplash injury.
The design height of the second row seat headrest of the current mainstream passenger vehicle is lower than that of the front row headrest; meanwhile, in order to not block the rear view, a driver usually places the rear headrest at the lowest position, and if a rear collision occurs, the head of a rear passenger is lack of support, so that serious injury can be caused.
Disclosure of Invention
The invention aims to provide a whiplash preventing mechanism which is used for preventing a back collision from injuring the head and the neck, has sensitive action and can effectively prevent a passenger from being stricken by whiplash, and solves the problems of insensitive action and poor protection effect of the existing whiplash preventing device.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a back row seat for avoiding rear impact injury neck, includes
As a better technical scheme, the invention also comprises an air bag control unit, and the air bag control unit is positioned in the middle channel.
The invention further comprises a headrest position sensor, and the headrest position sensor is in signal connection with the airbag control unit.
As a better technical scheme, the automobile rear collision avoidance system further comprises an acceleration sensor, wherein the acceleration sensor is positioned on the rear collision avoidance cross beam and is in signal connection with the air bag control unit.
As a better technical scheme, the seat occupancy sensor device further comprises a rear-row seat occupancy sensor, and the rear-row seat occupancy sensor is in signal connection with the airbag control unit.
The safety belt locking device is characterized by further comprising a safety belt locking sensor, wherein the safety belt locking sensor is in signal connection with the safety air bag control unit.
As a better technical scheme of the invention, the bottom end of the
As a better technical scheme of the invention, the anti-falling snap
As a more preferable technical scheme of the invention, when the
As a more preferable technical solution of the present invention, when the
The beneficial effects are as follows:
the invention provides a back row seat which is mainly an anti-whiplash structure which utilizes the thrust generated by gunpowder combustion to push a second row headrest to rise to the highest design position, and solves the problem that the head of a back row passenger is lack of support due to the back collision of the back row seat in the prior art.
Drawings
Fig. 1 is a cross-sectional view of a rear row seat for avoiding injury to the neck from a rear impact in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a back row seat for preventing head and neck from being injured by a back collision, which comprises a
In some embodiments, the vehicle further comprises an airbag control unit, wherein the airbag control unit is positioned in the middle channel.
In some embodiments, the safety airbag device further comprises a headrest position sensor, and the headrest position sensor is in signal connection with the safety airbag control unit.
In some embodiments, the vehicle further comprises an acceleration sensor, wherein the acceleration sensor is positioned on the rear anti-collision cross beam and is in signal connection with the air bag control unit.
In some embodiments, the seat occupancy sensor system further comprises a rear seat occupancy sensor in signal communication with the airbag control unit.
In some embodiments, the safety belt lock device further comprises a safety belt lock sensor, and the safety belt lock sensor is in signal connection with the safety air bag control unit.
In some embodiments, the bottom end of the
In some embodiments, the anti-falling snap-off
In some embodiments, the
In some embodiments, the
The working process of the invention is as follows:
when the airbag control unit detects a rear collision signal, whether a passenger is in the rear row or not and whether the headrest is at the highest point or not are judged according to signals of the occupancy sensor and the headrest position sensor, when the passenger is detected and the headrest is not at the highest point and the collision strength is enough to cause the damage of the passenger, an ignition signal is immediately sent to the gas generator, and the gunpowder gas pushes the piston to further push the headrest rod to rise to the maximum design height.
The gas generator is communicated with a cavity provided with a piston and is fixed on a seat framework right below a headrest by a connecting bracket; when the headrest is at the lowest position, the length of the headrest rod entering the piston cavity is about 90mm, gunpowder gas can be discharged from the air leakage hole after the piston moves upwards for 55mm, the anti-falling clamping bamboo shoots are arranged at the bottom end of the headrest rod, and the end heads of the anti-falling clamping bamboo shoots can extend out of the precutting holes of the headrest rod under the pushing of the piston to prevent the headrest rod from falling out of the piston cavity.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
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