Automobile safety belt guide
Patent Information
- Application Number
- CN202522191481.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-16
AI Technical Summary
然而，现有安全带导向结构的导向孔多为直孔，未结合后排乘员的自然坐姿（肩部至腰部的倾斜角度约15°-25°）设计引导路径，导致安全带拉出时需克服额外转向阻力，易出现卡顿；而且导向孔边沿多为直角边缘，安全带带体长期拉动时，纤维易被直角边沿磨损，导致带体强度下降，降低安全带的使用寿命
这种汽车安全带导架适合安装在汽车后排座椅的顶部，能够准确引导后排座椅安全带的走向，使安全带能够以正确的位置和角度贴合乘客身体，让后排乘客在佩戴安全带时更加方便，能够快速且顺利地将安全带拉出并佩戴好。另外，条形通孔的倾斜路径并配合后弧面、前弧面的导引，能够减少安全带与导架本体的摩擦，避免对安全带纤维的磨损，延长安全带使用寿命。
Smart Images
Figure CN224752444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, and in particular to an automotive seat belt guide. Background Technology
[0002] Car seat belts, also known as seat belts, are a type of passenger restraint device. A seat belt guide structure is typically installed at the top of the rear seats to guide the direction of the seat belt, ensuring that the belt conforms to the passenger's body at a proper angle (crossing diagonally from the shoulder to the waist), preventing discomfort or protective failure caused by belt misalignment. However, existing seat belt guide structures often have straight guide holes, failing to consider the natural sitting posture of rear passengers (the angle of inclination from the shoulder to the waist is approximately 15°-25°) in their guide path design. This results in the seat belt needing to overcome additional steering resistance when pulled out, making it prone to jamming. Furthermore, the edges of the guide holes are often right-angled, which can cause the belt fibers to wear down under prolonged pulling, reducing belt strength and shortening the seat belt's lifespan. Utility Model Content
[0003] The problem to be solved by this utility model is to provide a car seat belt guide that can accurately guide the direction of the rear seat belt, reduce friction, and extend the service life of the seat belt.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A car seat belt guide includes a guide body with a guide hole for the seat belt to pass through and a positioning hole for assembly with a seat. The guide body is characterized by having a concave front groove and a concave rear groove on its front and rear sides, respectively. The guide hole is a strip-shaped through-hole that gradually slopes downwards from right to left or from left to right, located within the front and rear grooves. The bottom of the front groove has a front arc surface that gradually slopes forwards from top to bottom along the lower side of the strip-shaped through-hole, and the bottom of the rear groove has a rear arc surface that gradually slopes backwards from top to bottom along the lower side of the strip-shaped through-hole.
[0005] Typically, the top of a car seat has screw holes corresponding to the positioning through holes. A screw is installed in the screw hole, with the shank passing through the positioning through hole and the head of the screw and the top of the car seat working together to lock the rear curved surface. This arrangement secures the guide bracket body to the top of the rear seat, ensuring it remains stable and does not loosen or shift during vehicle movement and seatbelt use. Since the rear of a car has multiple seats, depending on the seat's orientation, a guide bracket with strip-shaped through holes that gradually slope downwards from right to left, or a guide bracket with strip-shaped through holes that gradually slope downwards from left to right, can be selected for installation.
[0006] The design of the strip-shaped through-hole gradually slopes downward from right to left, based on the natural sitting posture of rear passengers (buttocks against the seat back, upper body slightly leaning forward), which is consistent with the natural protective angle of the seat belt as it crosses diagonally from the occupant's shoulder to the waist. When the seat belt is pulled, there is no need for forced turning, reducing friction resistance. Rear passengers can quickly and smoothly pull out and put on the seat belt. In addition, the front arc surface of the front groove and the rear arc surface of the rear groove form an arc-shaped wrap-around guide channel. When the seat belt passes through, it is limited by the edges of the front and rear grooves, and always moves along the preset path, making it difficult to come off.
[0007] In a preferred embodiment, the angle between the strip-shaped through-hole and the horizontal direction is 15°-30°. That is, the inclination angle of the strip-shaped through-hole is 15°-30°. The inclination angle of the strip-shaped through-hole ensures that the natural protective angle of the seat belt from the passenger's shoulder to the waist is consistent, eliminating the need for forced steering when the seat belt is pulled and reducing frictional resistance.
[0008] In a further preferred embodiment, the edges of the strip-shaped through holes are all curved surfaces. The curved edges of the strip-shaped through holes allow for a smooth transition with the rear and front curved surfaces, preventing the fibers from being cut or worn when the seatbelt is pulled, thus extending the service life of the seatbelt.
[0009] In a further preferred embodiment, the width of the strip-shaped through hole is 2.0mm-3.0mm. Designing the width of the strip-shaped through hole to be 2.0mm-3.0mm is compatible with the conventional thickness of the seat belt (1.5mm-2.5mm), which allows for a small amount of movement to prevent the seat belt from being too tight and causing jamming, while also preventing the seat belt from coming off or shifting due to excessive gaps.
[0010] In the preferred embodiment, the positioning through hole is located on the rear arc surface and runs vertically. The vertically oriented positioning through hole aligns with the axial direction of the seat screw hole, allowing for quick alignment during installation without adjusting the guide bracket angle, thus improving assembly efficiency.
[0011] In a further preferred embodiment, the rear arc surface is provided with a guide groove running vertically, the bottom of which is a flat surface, and the positioning through hole is formed on the flat surface. The vertically running guide groove facilitates guiding the screw into the positioning through hole; in addition, the flat bottom of the groove ensures that the positioning through hole and the screw head are completely fitted, the force-bearing area is uniform, and it prevents local deformation of the guide frame when the screw is tightened, or loosening of the screw due to long-term bumps.
[0012] In a further preferred embodiment, the lower end face of the guide frame body is provided with two positioning pins for assembly with the seat. Typically, the top of a car seat has two holes corresponding to these positioning pins, and the two positioning pins are inserted into the corresponding holes. During assembly, the two positioning pins are first inserted into the corresponding holes on the seat to restrict the horizontal rotation and lateral movement of the guide frame. After the pins are pre-positioned, the guide frame position is fixed, facilitating the installation of screws by the operator.
[0013] In a preferred embodiment, the upper side of the guide frame body has a notch communicating with the strip-shaped through hole. The safety belt can be quickly inserted into the guide through hole directly through the notch on the top of the guide frame body, without needing to be inserted from the front and rear ends of the guide through hole.
[0014] In a further preferred embodiment, the upper side of the guide frame body is a sloping side that slopes downwards from right to left or from left to right, with both ends of the sloping side being arc-shaped. The notch is located in the lower middle section of the sloping side. The arc-shaped ends of the sloping side allow for a smooth transition of the upper side of the guide frame body, without any abrupt right angles or protrusions, which not only enhances the appearance but also prevents passengers from being bumped by the corners when getting on and off the vehicle.
[0015] Compared with the prior art, this utility model has the following advantages: This type of car seatbelt guide is suitable for installation on the top of the rear seats. It accurately guides the direction of the rear seatbelts, ensuring they fit the passenger's body at the correct position and angle. This makes it easier for rear passengers to put on their seatbelts, allowing them to pull them out and put them on quickly and smoothly. Furthermore, the inclined path of the strip-shaped through-holes, combined with the guiding rear and front curved surfaces, reduces friction between the seatbelt and the guide body, preventing wear on the seatbelt fibers and extending the seatbelt's lifespan. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 2 Cross-sectional view of AA. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0018] like Figure 1-3 As shown, the car seat belt guide in this embodiment includes a guide body 1. The guide body 1 is provided with a guide through hole 11 through which the seat belt can pass. The guide body 1 is also provided with a positioning through hole 12 for assembly and cooperation with the top of the seat. The front side and rear side of the guide body 1 are respectively provided with a concave front groove 13 and a rear groove 14. The guide through hole 11 is a strip-shaped through hole 111 that gradually slopes downward from right to left. The strip-shaped through hole 111 is located in the front groove 13 and the rear groove 14. The bottom of the front groove 13 is provided with a front arc surface 131 that gradually slopes forward from top to bottom along the lower side of the strip-shaped through hole 111. The bottom of the rear groove 14 is provided with a rear arc surface 141 that gradually slopes backward from top to bottom along the lower side of the strip-shaped through hole 111.
[0019] Typically, the top of a car seat has a screw hole corresponding to the positioning through hole 12. A screw is installed in the screw hole, with the shank of the screw passing through the positioning through hole 12. The head of the screw, together with the top of the car seat, locks the rear arc surface 141. This arrangement secures the guide frame body 1 to the top of the rear seat, ensuring it remains stable and does not loosen or shift during vehicle operation and seatbelt use.
[0020] The design of the strip-shaped through-hole 111, which slopes downwards from right to left, is based on the natural sitting posture of the rear passengers (buttocks against the seat back, upper body slightly leaning forward). This is consistent with the natural protective angle of the seat belt as it crosses from the occupant's shoulder to the waist. When the seat belt is pulled, there is no need for forced turning, reducing frictional resistance. Rear passengers can quickly and smoothly pull out and put on the seat belt. In addition, the front arc surface 131 of the front groove 13 and the rear arc surface 141 of the rear groove 14 form an arc-shaped wrap-around guide channel. When the seat belt passes through, it is limited by the edges of the front groove 13 and the rear groove 14, and always moves along the preset path, making it difficult to come off.
[0021] The angle between the strip-shaped through hole 111 and the horizontal direction is 15°-30°. That is, the tilt angle of the strip-shaped through hole 111 is 15°-30°. The tilt angle of the strip-shaped through hole 111 ensures that the natural protection angle of the seat belt from the passenger's shoulder to the waist is consistent, so that the seat belt does not need to be forcibly turned when pulled, reducing frictional resistance.
[0022] The edges of the strip-shaped through-hole 111 are all curved. The curved edge design of the strip-shaped through-hole 111 allows for a smooth transition with the rear curved surface 141 and the front curved surface 131, preventing the fibers from being cut or worn when the seat belt is pulled, thus extending the service life of the seat belt.
[0023] The width of the strip-shaped through hole 111 is 2.0mm-3.0mm. Designing the width of the strip-shaped through hole 111 to be 2.0mm-3.0mm is compatible with the conventional thickness of the seat belt (1.5mm-2.5mm). This allows for a small amount of movement to prevent the seat belt from being too tight and causing jamming, while also preventing the seat belt from coming off or shifting due to excessive gaps.
[0024] A positioning through hole 12 is provided on the rear arc surface 141, and the positioning through hole 12 runs vertically. The vertically running positioning through hole 12 is aligned with the axial direction of the seat screw hole, so that it can be quickly aligned without adjusting the guide bracket angle during installation, thus improving assembly efficiency.
[0025] The rear arc surface 141 is provided with a vertically oriented guide groove 142, the bottom of which is a flat surface 143. The positioning through hole 12 is formed on the flat surface 143. The vertically oriented guide groove 142 facilitates the guidance of the screw into the positioning through hole 12; in addition, the flat surface 143 at the bottom of the groove ensures that the positioning through hole 12 and the screw head are completely fitted, the force-bearing area is uniform, and it prevents local deformation of the guide frame when the screw is tightened, or loosening of the screw due to long-term bumps.
[0026] The lower end face of the guide body 1 is provided with two positioning pins 15 for assembly with the seat. Typically, the top of the car seat has two holes corresponding to the positioning pins 15, and the two positioning pins 15 are inserted into the corresponding holes. During assembly, the two positioning pins 15 are first inserted into the corresponding holes of the seat to restrict the horizontal rotation and lateral displacement of the guide. After the pins are pre-positioned, the guide position is fixed, facilitating the installation of screws by the operator.
[0027] The upper side of the guide frame body 1 is provided with a notch 16 that communicates with the strip-shaped through hole 111. The safety belt can be quickly inserted into the guide through hole 11 directly through the notch 16 on the top of the guide frame body 1, without having to be inserted from the front and rear ends of the guide through hole 11.
[0028] The upper side of the guide frame body 1 is a sloping edge 17 that slopes downward from right to left. Both ends of the sloping edge 17 are arc-shaped portions 18, and the notch 16 is located in the lower middle section of the sloping edge 17. The sloping edge 17 with arc-shaped portions 18 at both ends makes the upper side of the guide frame body 1 smoothly transition without any abrupt right angles or protrusions, which not only improves the appearance and texture but also prevents passengers from being bumped by the corners when getting on and off the vehicle.
[0029] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.
Claims
1. A car seat belt guide, comprising a guide body, a guide hole for the seat belt to pass through, and a positioning hole for assembly with a seat; characterized in that: The front and rear sides of the guide frame body are respectively provided with a concave front groove and a rear groove. The guide through hole is a strip-shaped through hole that gradually slopes downward from right to left or from left to right. The strip-shaped through hole is located in the front groove and the rear groove. The bottom of the front groove is provided with a front arc surface that gradually slopes forward from top to bottom along the lower side of the strip-shaped through hole. The bottom of the rear groove is provided with a rear arc surface that gradually slopes backward from top to bottom along the lower side of the strip-shaped through hole.
2. The automotive seatbelt guide as described in claim 1, characterized in that: The angle between the strip-shaped through hole and the horizontal direction is 15°-30°.
3. The automotive seatbelt guide as described in claim 1 or 2, characterized in that: The edges of the strip-shaped through holes are all curved surfaces.
4. The automotive seatbelt guide as described in claim 3, characterized in that: The width of the strip-shaped through hole is 2.0mm-3.0mm.
5. The automotive seatbelt guide as described in claim 1, characterized in that: The positioning through hole is disposed on the rear arc surface, and the positioning through hole runs vertically.
6. The automotive seatbelt guide as described in claim 5, characterized in that: The rear arc surface is provided with a guide groove running vertically, the bottom of the guide groove is a plane, and the positioning through hole is opened on the plane.
7. The automotive seatbelt guide as described in claim 1 or 5, characterized in that: The lower end face of the guide frame body is provided with two positioning pins for assembly and cooperation with the seat.
8. The automotive seatbelt guide as described in claim 1, characterized in that: The upper side of the guide frame body is provided with a notch that communicates with the strip-shaped through hole.
9. The automotive seatbelt guide as described in claim 8, characterized in that: The upper side of the guide frame body is a sloping side that slopes downward from right to left or from left to right, and both ends of the sloping side are arc-shaped. The notch is located in the lower middle section of the sloping side.