Safety belt limiting system and safety seat
By setting a limiter on the seat belt, the problem of slipping of the insert is solved, which enables convenient access to the insert and simple locking of the seat belt, improving the user experience.
Patent Information
- Application Number
- CN202422640482.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The existing five-point seat belt insert of the child safety seat can easily slide down to the edge of the safety seat or drill into the cloth cover, making it difficult to lock the insert again, increasing the difficulty of use.
Set a limiter on the seat belt to limit the sliding of the insert and ensure that the insert remains close to the lock for easy access and use.
Through the design of the limiter, the probability of the insert slide is reduced, making the insert pick-up operation simpler and more convenient, and improving the user's locking experience of the seat belt.
Smart Images
Figure CN223173992U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of child safety seats, and specifically relates to a seat belt limiting system and a child safety seat. Background Art
[0002] The five-point seat belt is a safety device that is fixed to the buckle between the legs through the shoulders and hips on both sides. The seat belt can closely fit the pelvis (hip and buttock seat belts), shoulders and chest (shoulder straps). The most common child safety protection system for child safety seats is the use of a five-point seat belt. In the event of an accident, when a child moves forward in the seat, a properly tightened seat belt can "catch" them and immediately prevent their displacement, while dispersing the impact force to the strong bones of the body, with relatively high safety.
[0003] However, the existing child safety seats have the following defects: Since there are multiple seat belt inserts on the five-point seat belt, after the insert detaches from the buckle, the insert is likely to slide to the lowest point of the seat belt and even drill into the fabric cover of the child safety seat, thereby increasing the difficulty of using the insert for re-locking. Summary of the Invention
[0004] An object of this application is to provide a seat belt limiting system and a child safety seat that reduce the difficulty of buckling the seat belt.
[0005] To achieve the above object, the technical solution adopted in this application is: A seat belt limiting system includes a seat belt, an insert, a limiter, and a buckle. The insert and the limiter are provided on the seat belt. The insert is adapted to slide along the seat belt, the insert is adapted to be inserted into the buckle in cooperation, and the limiter is adapted to limit the insert from sliding towards one end of the seat belt so that the height of the insert adapts to the height where the buckle is located.
[0006] In some embodiments, a fixed end is provided on the seat belt. The insert is located on the side of the limiter away from the fixed end. When the seat belt is connected to the child safety seat through the fixed end, the distance between the fixed end and the buckle is not less than the length of the seat belt between the fixed end and the limiter.
[0007] In some embodiments, a telescopic end is provided on the seat belt. The insert is located between the limiter and the telescopic end, and the connection position of the telescopic end to the child safety seat is higher than the buckle.
[0008] In some embodiments, when the insert contacts the limiter, the distance from the connection position of the telescopic end on the child safety seat to the insert is less than the distance from the connection position of the telescopic end on the child safety seat to the seat cushion of the child safety seat.
[0009] In some embodiments, a through - hole for the seat belt to pass through is formed on the insert piece, and the sum of the thicknesses of the limiter and the seat belt is greater than the width of the through - hole.
[0010] In some embodiments, the limiter is a limit pin, and the limit pin is fixed to the seat belt.
[0011] In some embodiments, the seat belt bulges and thickens towards at least one side to form the limiter; the seat belt is bent and stitched to form a fixed end, and the stitched part of the seat belt is adapted to form the limiter.
[0012] In some embodiments, twice the thickness of the seat belt is greater than the width of the through - hole.
[0013] In some embodiments, there are two seat belts, including a first seat belt and a second seat belt, and the insert pieces on the first seat belt and the insert pieces on the second seat belt are adapted to be inserted into the buckle in cooperation with each other.
[0014] A safety seat includes the above - mentioned seat - belt limiting system. The first seat belt and the second seat belt are respectively arranged on both sides of the buckle, and the heights of the limiters on the first seat belt and the limiters on the second seat belt are the same.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows:
[0016] 1. The seat - belt limiting system and the safety seat of the present application can prevent the insert piece from sliding along the seat belt to the edge of the safety seat or even getting into the cloth cover through the limiter arranged on the seat belt, making the operation of taking and placing the insert piece simpler and more convenient without interference, and improving the user experience of locking the seat belt.
[0017] 2. The seat - belt limiting system and the safety seat of the present application optimize the position of the limiter arranged on the seat belt, so that the limiter can keep the insert piece close to the buckle after sliding on the seat belt, thereby reducing the matching difficulty between the insert piece and the buckle. In addition, by optimizing the positional relationship of the limiters on different seat belts of the five - point seat - belt system, the tactile sensation of taking and placing the insert pieces on different seat belts is kept consistent, thereby improving the user experience of locking the seat belt. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is an overall structural view according to a preferred embodiment of the present application.
[0019] Figure 2 is a schematic structural view when the seat belt is locked according to a preferred embodiment of the present application.
[0020] Figure 3It is a schematic structural diagram when the seat belt is unlocked according to a preferred embodiment of the present application.
[0021] Figure 4 It is a schematic exploded structural diagram according to a preferred embodiment of the present application.
[0022] Figure 5 It is a schematic structural diagram when the limiter is convex and thickened according to a preferred embodiment of the present application.
[0023] Figure 6 It is a schematic structural diagram when the limiter is formed by stitching according to a preferred embodiment of the present application.
[0024] In the figure: 1. First seat belt; 11. First fixed end; 12. First telescopic end; 2. Second seat belt; 21. Second fixed end; 22. Second telescopic end; 3. Insert piece; 31. Through hole; 4. Limiter; 41. Limiting nail; 42. Suture area; 43. Stitching area; 5. Buckle; 6. Safety seat. Detailed implementation manners
[0025] Next, in combination with the detailed implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.
[0026] In the description of the present application, it should be noted that for orientation terms, such as terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present application.
[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence.
[0028] The terms "comprising" and "having" in the description and claims of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0029] The present application will be further described below with reference to the accompanying drawings:
[0030] As Figures 1 to 6 shown, the present application provides a seat belt limiting system, including a first seat belt 1, a second seat belt 2, a plug 3, a limiter 4 and a buckle 5. Plugs 3 and limiters 4 are provided on both the first seat belt 1 and the second seat belt 2. The plug 3 on the first seat belt 1 is adapted to slide along the first seat belt 1, and the plug 3 on the second seat belt 2 is adapted to slide along the second seat belt 2. The plug 3 can change its position on the seat belt by sliding to adapt to children of different heights and body types. The plug 3 on the first seat belt 1 and the plug 3 on the second seat belt 2 are adapted to be inserted into the buckle 5 in cooperation to form a five-point seat belt limiting structure, which can better limit the child on the seat and has a better protection effect.
[0031] In some embodiments, the plug 3 on the first seat belt 1 and the plug 3 on the second seat belt 2 can be individually connected and locked to the buckle 5, which is more free in unlocking and locking operations.
[0032] As Figure 2 shown in the embodiment, the plug 3 on the first seat belt 1 and the plug 3 on the second seat belt 2 can be connected and locked to the buckle 5 in a combined manner, which can increase the stability and safety of the locking operation of the first seat belt 1 and the second seat belt 2 and reduce the probability that the plug 3 is not fully inserted into the buckle 5.
[0033] The limiter 4 on the first seat belt 1 is adapted to limit the plug 3 from sliding towards one end of the first seat belt 1, and the limiter 4 on the second seat belt 2 is adapted to limit the plug 3 from sliding towards one end of the second seat belt 2. Since after the plug 3 is disengaged from the buckle 5, the plug 3 will slide downwards to the seat cushion of the child safety seat 6 and even get into the seat cushion cloth cover of the child safety seat 6, resulting in difficulty in taking and removing the plug 3 when the seat belt needs to be locked. Especially when the plug 3 is used in the above situation, the child is generally sitting on the child safety seat 6. Therefore, under the double interference of the child and the child safety seat 6, it will further block the taking and removing of the plug 3, resulting in an increase in the difficulty of using the plug 3. Therefore, in the present application, by setting the limiter 4, the sliding process of the plug 3 can be restricted, so that the plug 3 is exposed at a position where it is easy to take and use, reducing the user's difficulty of use and improving the user's convenience and experience of use.
[0034] As Figure 1 and 2In the illustrated embodiment, a first fixed end 11 is provided on the first safety belt 1, and the insert piece 3 is located on the side of the limiter 4 away from the first fixed end 11. When the first safety belt 1 is connected to the safety seat 6 through the first fixed end 11, the distance between the first fixed end 11 and the buckle 5 is not less than the length of the first safety belt 1 between the first fixed end 11 and the limiter 4. It can be understood that when the distance between the first fixed end 11 and the buckle 5 is less than the length of the first safety belt 1 between the first fixed end 11 and the limiter 4, when the insert piece 3 of the first safety belt 1 cooperates with the buckle 5, it may cause the first safety belt 1 between the first fixed end 11 and the limiter 4 to bend, resulting in the first safety belt 1 between the first fixed end 11 and the limiter 4 being unable to fit and fasten the limbs and torso of the child, affecting safety. In this application, it is more appropriate to set the distance between the first fixed end 11 and the buckle 5 to be slightly greater than the length of the first safety belt 1 between the first fixed end 11 and the limiter 4.
[0035] In some embodiments, a first telescopic end 12 is provided on the first safety belt 1, and the insert piece 3 is located between the limiter 4 and the first telescopic end 12. The connection position of the first telescopic end 12 to the safety seat 6 is higher than the buckle 5. The first safety belt 1 can extend and contract from the connection position of the first telescopic end 12 to the safety seat 6, and the connection position is higher than the buckle 5. Combining the restriction of the limiter 4 on the insert piece 3, it can not only set the lowest drop point of the insert piece 3, but also use the telescoping of the first telescopic end 12 to ensure the smoothness of the combination between the insert piece 3 and the buckle 5.
[0036] As Figure 3 In the illustrated embodiment, when the insert piece 3 contacts the limiter 4, the distance from the connection position of the first telescopic end 12 on the safety seat 6 to the insert piece 3 is less than the distance from the connection position of the first telescopic end 12 on the safety seat 6 to the seat cushion of the safety seat 6. It can be understood that due to the existence of the first telescopic end 12, when the insert piece 3 contacts and approaches the buckle 5, it will move away from the limiter 4. When the insert piece 3 is separated from the buckle 5, it will slide and contact the insert piece 3. At this time, the distance from the connection position of the first telescopic end 12 on the safety seat 6 to the insert piece 3 is the maximum distance of the insert piece 3 sliding. By setting the maximum value of this distance, the insert piece 3 can be kept away from the seat cushion of the safety seat 6 and exposed on the safety seat 6 in a hanging form, which is convenient for users to pick up and use.
[0037] In some embodiments, by setting the distance from the connection position of the first telescopic end 12 on the safety seat 6 to the insert piece 3 to be close to the distance from the connection position of the first telescopic end 12 on the safety seat 6 to the buckle 5, the user experience can be further improved, and the user can easily move the insert piece 3 close to and align with the buckle 5 and lock it.
[0038] As Figure 1 and 2In the illustrated embodiment, a second fixed end 21 is provided on the second safety belt 2, and the insert 3 is located on the side of the limiter 4 away from the second fixed end 21. When the second safety belt 2 is connected to the safety seat 6 through the second fixed end 21, the distance between the second fixed end 21 and the buckle 5 is not less than the length of the second safety belt 2 between the second fixed end 21 and the limiter 4. It can be understood that when the distance between the second fixed end 21 and the buckle 5 is less than the length of the second safety belt 2 between the second fixed end 21 and the limiter 4, when the insert 3 of the second safety belt 2 cooperates with the buckle 5, it may cause the second safety belt 2 between the second fixed end 21 and the limiter 4 to bend, resulting in the second safety belt 2 between the second fixed end 21 and the limiter 4 being unable to fit and fasten the limbs and torso of the child, affecting safety. In the present application, it is more appropriate to set the distance between the second fixed end 21 and the buckle 5 to be slightly greater than the length of the second safety belt 2 between the second fixed end 21 and the limiter 4.
[0039] In some embodiments, a second telescopic end 22 is provided on the second safety belt 2, and the insert 3 is located between the limiter 4 and the second telescopic end 22. The connection position of the second telescopic end 22 to the safety seat 6 is higher than the buckle 5. The second safety belt 2 can be extended and retracted from the connection position of the second telescopic end 22 to the safety seat 6, and the connection position is higher than the buckle 5. Combining the restriction of the limiter 4 on the insert 3, it is possible to set the lowest drop point of the insert 3 and ensure the smoothness of the combination between the insert 3 and the buckle 5 by using the telescoping of the second telescopic end 22.
[0040] As Figure 3 In the illustrated embodiment, when the insert 3 contacts the limiter 4, the distance from the connection position of the second telescopic end 22 on the safety seat 6 to the insert 3 is less than the distance from the connection position of the second telescopic end 22 on the safety seat 6 to the seat cushion of the safety seat 6. It can be understood that due to the presence of the second telescopic end 22, the insert 3 will move away from the limiter 4 when it approaches the buckle 5. When the insert 3 is separated from the buckle 5, it will slide and contact the insert 3. At this time, the distance from the connection position of the second telescopic end 22 on the safety seat 6 to the insert 3 is the maximum distance of the insert 3's sliding. By setting the maximum value of this distance, the insert 3 can be kept away from the seat cushion of the safety seat 6 and exposed on the safety seat 6 in a hanging form, facilitating the user to pick up and use.
[0041] In some embodiments, by setting the distance from the connection position of the second telescopic end 22 on the safety seat 6 to the insert 3 to be close to the distance from the connection position of the second telescopic end 22 on the safety seat 6 to the buckle 5, the user experience can be further improved, and the user can easily move the insert 3 closer to and align it with the buckle 5 and lock it.
[0042] In some embodiments, a through - opening 31 for the first seat belt 1 or the second seat belt 2 to pass through is formed on the insert piece 3. The sum of the thicknesses of the limiter 4 and the first seat belt 1 is greater than the width of the through - opening 31, and the sum of the thicknesses of the limiter 4 and the second seat belt 2 is greater than the width of the through - opening 31.
[0043] As Figure 4 In the embodiment shown, the limiter 4 is a limiting nail 41. The limiting nail 41 is fixed on the first seat belt 1 and / or the second seat belt 2. The sum of the thicknesses of the limiting nail 41 and the first seat belt 1 is greater than the width of the through - opening 31, and the sum of the thicknesses of the limiting nail 41 and the second seat belt 2 is greater than the width of the through - opening 31. The structural form of the limiting nail 41 is convenient for installation and can be installed at various positions on the seat belt.
[0044] In some embodiments, the limiting nail 41 can be fixed on the first seat belt 1 and / or the second seat belt 2 in a single - sided buckle or double - sided buckle manner.
[0045] In some embodiments, the main body structure of the limiting nail 41 is circular, and an arc - shaped chamfer is provided at the edge of the limiting nail 41 to reduce the contact wear between the limiting nail 41 and the insert piece 3.
[0046] In some embodiments, the first seat belt 1 and / or the second seat belt 2 bulge and thicken towards at least one side to form the limiter 4. The thickness of the first seat belt 1 and / or the second seat belt 2 at the bulging and thickening part is greater than the width of the through - opening 31.
[0047] As Figure 5 In the embodiment shown, the first seat belt 1 and / or the second seat belt 2 bulge and thicken towards at least one side by using a separately - set sewing area 42 to form the limiter 4, which can make the seat belt have higher integrity, does not affect the flexibility of the seat belt, reduces the hard - object feeling when children contact the seat belt, and improves the comfort.
[0048] As Figure 6 In the embodiment shown, the first seat belt 1 is bent and sewn to form a first fixed end 11. The sewing part of the first seat belt 1 is suitable for forming the limiter 4, that is, one end of the first seat belt 1 is bent towards the insert piece 3 to form the first fixed end 11, and the sewing area 43 is enlarged and approaches the insert piece 3 by further extending and sewing towards the insert piece 3 to reduce the moving space of the insert piece 3, thereby realizing the anti - sliding of the insert piece 3.
[0049] In some embodiments, twice the thickness of the first seat belt 1 is greater than the width of the through - opening 31, so that the sewing area 43 of the first seat belt 1 can have a structural interference with the through - opening 31 to ensure that the insert piece 3 does not slide into the sewing area 43.
[0050] As Figure 6In the illustrated embodiment, the second seat belt 2 is bent and stitched to form a second fixed end 21. The stitched portion of the second seat belt 2 is adapted to form a stopper 4. That is, one end of the second seat belt 2 is bent toward the insert 3 to form the second fixed end 21, and the stitched area 43 is enlarged and approaches the insert 3 by further extending and stitching in the direction of the insert 3 to reduce the movement space of the insert 3, thereby preventing the insert 3 from sliding down.
[0051] In some embodiments, twice the thickness of the second seat belt 2 is greater than the width of the through-opening 31, so that the stitched area 43 of the second seat belt 2 can have a structural interference with the through-opening 31 to ensure that the insert 3 does not slide into the stitched area 43.
[0052] The present application also provides a child safety seat 6, including the seat belt limiting system of any of the above embodiments. The first seat belt 1 and the second seat belt 2 are respectively arranged on both sides of the buckle 5. The height of the stopper 4 on the first seat belt 1 is the same as the height of the stopper 4 on the second seat belt 2. The purpose of this is to further facilitate the user's access and connection with the buckle 5.
[0053] The foregoing describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A seat belt limiting system, characterized in that: It includes a seat belt, a plug, a stopper and a buckle. The plug and the stopper are arranged on the seat belt. The plug is adapted to slide along the seat belt and is adapted to be inserted into the buckle in cooperation. The stopper is adapted to limit the plug from sliding towards one end of the seat belt so that the height of the plug adapts to the height where the buckle is located.
2. The seat belt limiting system according to claim 1, wherein: A fixed end is arranged on the seat belt. The plug is located on the side of the stopper away from the fixed end. When the seat belt is connected to a child safety seat through the fixed end, the distance between the fixed end and the buckle is not less than the length of the seat belt between the fixed end and the stopper.
3. The seat belt limiting system according to claim 1, characterized in that: A telescopic end is arranged on the seat belt. The plug is located between the stopper and the telescopic end. The connection position of the telescopic end to the child safety seat is higher than the buckle.
4. The seat belt position limiting system according to claim 3, characterized in that: When the plug contacts the stopper, the distance from the connection position of the telescopic end on the child safety seat to the plug is less than the distance from the connection position of the telescopic end on the child safety seat to the seat cushion of the child safety seat.
5. The seat belt limiting system according to claim 1, characterized in that: A through hole for the seat belt to pass through is formed on the plug. The sum of the thicknesses of the stopper and the seat belt is greater than the width of the through hole.
6. The seat belt limiting system according to claim 5, characterized in that: The stopper is a limit pin which is fixed on the seat belt.
7. The seat belt limiting system according to claim 5, wherein: The seat belt bulges and thickens towards at least one side to form the stopper; the seat belt is bent and sewn to form the fixed end, and the sewing part of the seat belt is adapted to form the stopper.
8. The seat belt limiting system according to claim 7, wherein: Twice the thickness of the seat belt is greater than the width of the through hole.
9. A seat belt limiting system according to any one of claims 1 to 8, characterized in that: There are two seat belts, including a first seat belt and a second seat belt. The plugs on the first seat belt and the plugs on the second seat belt are adapted to be inserted into the buckle in mutual cooperation.
10. A safety seat, characterized in that: It includes the seat belt limiting system according to claim 9. The first seat belt and the second seat belt are respectively arranged on both sides of the buckle, and the heights of the stoppers on the first seat belt and the second seat belt are the same.