Headrest mechanism capable of actively moving forwards before impending collision of vehicle
By designing a headrest mechanism that actively moves forward in the seat, using a screw motor to drive the forward movement of the connecting bracket and the headrest front shell, the problem that the existing seat headrest cannot fully fit the passenger's neck is solved. , significantly improves the safety of occupants during vehicle collisions.
Patent Information
- Application Number
- CN202411518881.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2024-12-13
AI Technical Summary
The existing seat headrest cannot fully fit the passenger's neck in the rear-end accident, resulting in a risk of whiplashing.
Design a headrest mechanism that actively moves forward before a vehicle is about to collide, including a headrest rod fixed to the skeleton, a headrest fixing seat, a slide rail guide groove, a slide rail, a connecting bracket, a headrest front shell and a wire After receiving the collision signal, the screw motor drives the connecting bracket and the headrest front shell to move forward to achieve contact with the passenger's neck.
Through the headrest mechanism that actively moves forward, the safety protection of the head and neck of the personnel in the car is improved, and is suitable for various types of headrests, which improves the safety factor of the occupants during collisions.
Smart Images
Figure CN119116802A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile seats, and in particular to a headrest mechanism which actively moves forward before a vehicle is about to collide. Background Art
[0002] The main function of the seat headrest is to prevent the cervical vertebrae of the passengers in the front car from being injured due to inertia in the event of a rear-end collision or other safety accidents. In the event of a rear-end collision, the head of the passenger will be thrown back instantly. Without a headrest, it will cause serious whiplash injuries. With a headrest, it can effectively alleviate the huge impact force caused by the safety accident and prevent the neck from being injured due to excessive backward tilt of the head. However, due to the passenger's sitting posture, it is impossible to achieve a complete fit between the headrest and the passenger's neck, and there is still a risk of whiplash injuries in the event of an accident. Summary of the invention
[0003] In view of the above problems, an object of the present invention is to provide a headrest mechanism that actively moves forward before a vehicle collision occurs, so as to better protect the head and neck safety of occupants in the vehicle when the vehicle collides, so as to overcome the deficiencies of the above-mentioned prior art.
[0004] The present invention provides a headrest mechanism that actively moves forward before a vehicle is about to collide, comprising: a headrest rod fixedly connected to a frame, a headrest fixing seat fixedly connected to the headrest rod, a slide rail guide groove opened on the headrest fixing seat in a horizontal direction, a slide rail that slides back and forth in the slide rail guide groove, a connecting bracket fixedly connected to the front end of the slide rail, a headrest front shell fixedly connected to the connecting bracket, and a screw motor fixedly connected to the headrest fixing seat, the screw of the screw motor passes through the headrest fixing seat and is threadedly connected to the screw hole opened on the connecting bracket, the screw of the screw motor drives the connecting bracket to move back and forth on the headrest fixing seat through the slide rail, and indirectly drives the headrest front shell to move back and forth on the headrest fixing seat, and when the screw motor receives a collision signal, it starts and drives the screw to rotate, and during the rotation of the screw, the headrest front shell on the connecting bracket is driven to move forward on the headrest fixing seat and contact the passenger's neck.
[0005] As a preferred embodiment of the present invention, two slide rail guide grooves are symmetrically provided on the headrest fixing seat, and the connecting bracket is slidably connected to the headrest fixing seat via two slide rails.
[0006] As a preferred embodiment of the present invention, a screw rod avoidance hole for the screw rod to pass through is provided on the headrest fixing seat.
[0007] The beneficial effects of the present invention are as follows: compared with traditional headrests, by adding a headrest mechanism that actively moves forward, active head and neck protection can be provided to occupants in the vehicle, and it is suitable for more types of headrests, thereby improving the safety factor of occupants in the event of a collision. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easy to understand. In the accompanying drawings:
[0009] Figure 1 It is a schematic diagram of the overall structure of this embodiment.
[0010] Figure 2 This is a schematic diagram of the installation of the connecting bracket of this embodiment through the slide rail and the headrest fixing seat.
[0011] Figure 3 It is an exploded view of this embodiment.
[0012] The reference numerals therein include: headrest rod 1, headrest fixing seat 2, slide rail guide groove 3, slide rail 4, connecting bracket 5, headrest front shell 6, screw motor 7, screw avoidance hole 8, screw hole 9, and wiring harness 10. DETAILED DESCRIPTION
[0013] See also Figure 1-3 As shown, the headrest mechanism provided in this embodiment actively moves forward before a vehicle is about to collide, comprising: two headrest rods 1 fixedly connected to a frame, a headrest fixing seat 2 fixedly connected to the two headrest rods 1, two slide rail guide grooves 3 provided on the headrest fixing seat 2 in a horizontal direction, a slide rail 4 sliding forward and backward in the slide rail guide groove 3, a connecting bracket 5 fixedly connected to the front end of the slide rail 4, a headrest front shell 6 fixedly connected to the connecting bracket 5, and a screw motor 7 fixedly connected to the headrest fixing seat 2, the screw of the screw motor 7 passes through the screw avoidance hole 8 of the headrest fixing seat 2 and is threadedly connected to the screw hole 9 provided on the connecting bracket 5, the screw of the screw motor 7 drives the connecting bracket 5 to move forward and backward on the headrest fixing seat 2 through the slide rail 4, and indirectly drives the headrest front shell 6 to move forward and backward on the headrest fixing seat 2. Among them, the screw motor 7 is located at the back of the headrest fixing seat 2, the headrest front shell 6 is located at the front of the headrest fixing seat 2, and the soft bag on the headrest front shell 6 contacts the neck of the passenger. The wire harness 10 of the screw motor 7 passes through the headrest rod 1 and is connected to the vehicle control system.
[0014] Working process: During the driving process, the vehicle sensor identifies the distance and speed from the front and rear vehicles. After judging and predicting that a collision will occur within 1 to 2 seconds, the driving computer will transmit a start signal to the screw motor 7 through the wiring harness 10. The screw motor 7 immediately starts working, and the screw on the screw motor 7 starts to rotate, driving the connecting bracket 5 to move forward relative to the headrest fixing seat 2 through the slide rail 4. The connecting bracket 5 and the front shell 6 of the headrest are fixed together, so that the headrest can move forward to protect the head and neck safety of the occupants. One minute after the signal is sent, the driving computer sends a reverse signal to the screw motor 7 again so that the front shell 6 of the headrest can be restored to the initial position under the drive of the screw motor 7.
[0015] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A headrest mechanism that actively moves forward before a vehicle is about to collide. It is characterized in that include: A headrest rod fixedly connected to the frame, a headrest fixing seat fixedly connected to the headrest rod, a slide rail guide groove opened on the headrest fixing seat in the horizontal direction, a slide rail sliding back and forth in the slide rail guide groove, a connecting bracket fixedly connected to the front end of the slide rail, a headrest front shell fixedly connected to the connecting bracket, and a screw motor fixedly connected to the headrest fixing seat, the screw of the screw motor passes through the headrest fixing seat and is threadedly connected to the screw hole opened on the connecting bracket, the screw of the screw motor drives the connecting bracket to move back and forth on the headrest fixing seat through the slide rail, and indirectly drives the headrest front shell to move back and forth on the headrest fixing seat, and when the screw motor receives a collision signal, it starts and drives the screw to rotate, and during the rotation of the screw, the headrest front shell on the connecting bracket is driven to move forward on the headrest fixing seat and contact the passenger's neck.
2. A headrest mechanism that actively moves forward before a vehicle collision occurs according to claim 1, It is characterized in that The headrest fixing seat is symmetrically provided with two slide rail guide grooves, and the connecting bracket is slidably connected to the headrest fixing seat via the two slide rails.
3. A headrest mechanism that actively moves forward before a vehicle collision occurs according to claim 1, It is characterized in that The headrest fixing seat is provided with a screw rod avoidance hole for the screw rod to pass through.