Headrest assembly and child safety seat

Abstract

The utility model discloses a headrest assembly and a child safety seat, and belongs to the technical field of child safety seats. The headrest assembly comprises a headrest body and a head protection mechanism, the headrest body is provided with a containing space suitable for containing the head of a child and a bearing face facing the containing space to bear the head of the child, and the head protection mechanism is arranged at the top of the headrest body and protrudes towards the side where the containing space is located relative to the bearing face. The head protection mechanism is arranged at the top of the headrest assembly, when an automobile encounters an emergency, such as collision, the head of a child is hindered, the degree that the head of the child moves upwards and even swings backwards can be reduced, and therefore the head and the neck of the child are protected.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to a headrest assembly and a child safety seat. Background Art

[0002] At present, among modern transportation, cars have become an important way for families to travel. However, cars may encounter emergency situations during driving, such as collisions or sudden braking, which pose a serious threat to the safety of passengers in the car, especially children. Children are more vulnerable to injury when the vehicle is impacted by external forces because their heads account for a large proportion and their neck muscles and ligaments are not fully developed. When the car collides or the speed suddenly changes, the child's head may slide upward relative to the headrest assembly, or even swing backward relative to the headrest assembly, which may cause concussion, neck strain and other injuries.

[0003] The child safety seats in the prior art have the defect of insufficient protection for the child's head. In an emergency, the child's head may slide upward and further swing backward, causing injury to the child's head and neck. Summary of the invention

[0004] An object of the present application is to provide a headrest assembly that can reduce the extent to which a child's head slides upward and falls backward.

[0005] Another object of the present application is to provide a child safety seat using the above-mentioned headrest assembly to improve the safety of children riding in the vehicle.

[0006] In order to achieve one of the objectives of the present application, the technical solution adopted in the present application is: a headrest assembly, which includes a headrest body and a head protection mechanism, the headrest body is provided with a accommodating space suitable for accommodating a child's head, and a supporting surface facing the accommodating space to support the child's head, the head protection mechanism is arranged on the top of the headrest body, and protrudes relative to the supporting surface toward the side where the accommodating space is located.

[0007] Preferably, the maximum height of the head protection mechanism protruding relative to the supporting surface is not less than 3 cm and not more than 5 cm.

[0008] Preferably, along the direction from the bottom to the top of the head guard mechanism, the distance that the head guard mechanism protrudes relative to the supporting surface first gradually increases and then gradually decreases, so that a smooth contact surface is formed on the side of the head guard mechanism facing the accommodating space.

[0009] As a preference, along the direction from the bottom to the top of the head protection mechanism, the increasing speed of the protruding distance of the head protection mechanism changes from fast to slow and then to fast.

[0010] Preferably, the contact surface includes a first curved surface, a first transition surface, a second curved surface, a second transition surface, a third curved surface, a third transition surface, and a fourth curved surface which are arranged in sequence from the bottom to the top of the head protection mechanism, the first curved surface is a concave surface, the second curved surface, the third curved surface, and the fourth curved surface are convex surfaces, and the first transition surface, the second transition surface, and the third transition surface are planes.

[0011] Preferably, the headrest body includes a main supporting portion, a first side wing and a second side wing, the first side wing being arranged on one side of the main supporting portion along the left-right direction, the second side wing being arranged on the other opposite side of the main supporting portion and relative to the first side wing, the main supporting portion, the first side wing and the second side wing cooperate to form the C-shaped supporting surface.

[0012] As a preference, along the left-right direction of the headrest assembly, the head protection mechanism is centrally arranged relative to the headrest body; and the protruding thickness of the head protection mechanism gradually becomes thinner from the middle to the left and right sides.

[0013] As a preference, the head protection mechanism is integrally formed with the headrest body.

[0014] Preferably, the head protection mechanism is made of foam material, and the foam material includes pearl cotton, foamed polypropylene, foamed polystyrene polyethylene mixture, polystyrene foam, and polyurethane material; a skin-friendly cushion layer is provided on the side of the head protection mechanism facing the accommodating space, and the skin-friendly cushion layer is soft glue or silicone.

[0015] In order to achieve one of the purposes of the present application, the technical solution adopted in the present application is: a child safety seat, which uses any of the above-mentioned headrest assemblies.

[0016] Compared with the prior art, the beneficial effect of the present application is that when a car encounters an emergency, such as a collision, a child may slide or jump upward along the seat back, and the protruding head protection mechanism can hinder the child's head, reduce the degree of upward movement or even backward swinging of the child's head, thereby protecting the child's head and neck, and improving the child's riding safety. In addition, the headrest assembly of the present application has a simple structure and low processing and manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the cross-sectional structure of a child safety seat in some embodiments of the present application.

[0018] Figure 2 This is a schematic diagram of the structure of the headrest assembly in some embodiments of the present application.

[0019] Figure 3 Schematic diagram of the cross-sectional structure of the headrest assembly in some embodiments of the present application.

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of the local structure A in the figure.

[0021] In the figure: 01, base assembly; 02, backrest assembly; 03, headrest assembly; 10, headrest body; 11, accommodating space; 12, supporting surface; 131, main supporting part; 132, first side wing; 133, second side wing; 20, head protection mechanism; 21, contact surface; 211, first curved surface; 212, first transition surface; 213, second curved surface; 214, second transition surface; 215, third curved surface; 216, third transition surface; 217, fourth curved surface. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply 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 scope of protection of the present application.

[0024] 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 are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] like Figure 1As shown, the present application provides a child safety seat, which includes a base component 01, a seat back component 02 and a headrest component 03. The base component 01 is suitable for connecting with a car seat so that the child safety seat can be fixed on the car seat. The seat back component 02 is suitable for a child to sit on and is movably connected relative to the base component 01 to adjust the child's sitting direction and posture. The headrest component 03 is arranged on the seat back component 02 to support the child's head.

[0027] In some embodiments, the backrest assembly 02 can be rotated relative to the base assembly 01 to adjust the orientation of the backrest assembly 02. Generally, the backrest assembly 02 can at least be installed in a forward direction relative to the base assembly 01, or Figure 1 The seat back assembly 02 is shown as being installed in reverse relative to the base assembly 01. Further, the seat back assembly 02 can adjust the pitch angle relative to the base assembly 01 to provide different riding postures for children.

[0028] In some embodiments, the headrest assembly 03 is slidably connected relative to the seat back assembly 02 so as to adjust the height of the headrest assembly 03 so as to make the headrest assembly 03 adapt to different body shapes of children.

[0029] In the prior art, when a car encounters an emergency, such as a collision or a sudden change in driving speed, a child may slide or jump up along the seat back, and the child's head may slide upward relative to the headrest assembly 03, which weakens the support of the child's head by the headrest assembly 03. At the same time, the child's head may swing backward, which poses a great safety hazard to children with incomplete development of bones and muscles. Based on this, the present application improves the structure of the headrest assembly 03.

[0030] The present application provides a headrest assembly 03, such as Figure 2-Figure 4 As shown, it includes a headrest body 10 and a head protection mechanism 20. The headrest body 10 is provided with a receiving space 11 suitable for receiving a child's head, and a supporting surface 12 facing the receiving space 11 to support the child's head. The head protection mechanism 20 is arranged on the top of the headrest body 10, and is convexly arranged relative to the supporting surface 12 to the side where the receiving space 11 is located. The additional head protection mechanism 20 can hinder the child's head, reduce the degree of the child's head moving upward or even swinging backward, thereby protecting the child's head and neck. The child safety seat using the headrest assembly 03 can improve the child's riding safety. In addition, the headrest assembly 03 of the present application has a simple structure and low processing and manufacturing costs.

[0031] In some embodiments, the maximum height D of the head protection mechanism 20 protruding from the supporting surface 12 is not less than 3 cm and not more than 5 cm, and can be specifically 3.0 cm, 3.5 cm, 4.0 cm, 4.5 cm, or 5.0 cm. Assuming that the maximum height D of the head protection mechanism 20 protruding from the supporting surface 12 is less than 3 cm, the obstruction to the child's head is small, and the effect of reducing the degree of the child's head sliding up and swinging back is not obvious, and the child's head and neck are still at a great risk of injury. Assuming that the maximum height D of the head protection mechanism 20 protruding from the supporting surface 12 exceeds 5 cm, the entire head protection mechanism 20 occupies a large space, and if the head protection mechanism 20 is too convex, it itself may also hit the child or collide with the top of the child's head, causing injury to the child. After testing, when the maximum protrusion height D of the head protection mechanism 20 is set between 3cm-5cm, the head protection mechanism 20 can play a good blocking role on the child's head, effectively reducing the speed and distance of the child's head moving up and swinging back. At this time, the head protection mechanism 20 can just use the curvature of the child's head to be set in the space between the back of the child's head and the headrest assembly 03, and there is no need to increase the size of the entire headrest assembly 03 in order to add the head protection mechanism 20.

[0032] In some embodiments, along the direction from the bottom to the top of the head protection mechanism 20, the distance of the head protection mechanism 20 protruding relative to the supporting surface 12 first gradually increases and then gradually decreases, so that the side of the head protection mechanism 20 facing the accommodating space 11 forms a smooth contact surface 21. After the child's head is blocked by the head protection mechanism 20, its tendency to slide up and swing backward can be mostly blocked by the head protection mechanism 20. Under the obstruction and guidance of the head protection mechanism 20, the child's head slows down and slides forward and upward along the smooth contact surface 21 of the head protection mechanism 20, thereby reducing the impact damage to the head and neck.

[0033] In some embodiments, along the direction from the bottom to the top of the head guard mechanism 20, the speed of increase of the protruding distance of the head guard mechanism 20 changes from fast to slow, and then to fast. In a specific embodiment, along the direction from the bottom to the top of the head guard mechanism 20, the extension length x of the part of the head guard mechanism 20 whose protruding height is not less than 2 / 3 of the maximum protruding height D in this direction accounts for 3 / 7 to 4 / 7 of the total extension length X of the head guard mechanism 20 in this direction. The part of the head guard mechanism 20 with a relatively large protruding thickness occupies a certain extension length in this direction, and the support and blocking effect of the head guard mechanism 20 is better.

[0034] In a specific embodiment, the contact surface 21 includes a first curved surface 211, a first transition surface 212, a second curved surface 213, a second transition surface 214, a third curved surface 215, a third transition surface 216, and a fourth curved surface 217, which are arranged in sequence from the bottom to the top of the head protection mechanism 20. The first curved surface 211 is a concave surface to better fit the shape of the back of the child's head. The second curved surface 213, the third curved surface 215, and the fourth curved surface 217 are convex surfaces. The first transition surface 212, the second transition surface 214, and the third transition surface 216 are planes, and the entire contact surface 21 is a smooth curved surface.

[0035] In some embodiments, the headrest body 10 includes a main support portion 131, a first side wing 132, and a second side wing 133. The first side wing 132 is disposed on one side of the main support portion 131 along the left-right direction, and the second side wing 133 is disposed on the other opposite side of the main support portion 131 and is disposed relative to the first side wing 132. The main support portion 131, the first side wing 132, and the second side wing 133 cooperate to form a C-shaped supporting surface 12. In other words, the headrest body 10 includes two side wings that surround the left and right sides of the child's head to provide a better fit and better coverage support for the child's head.

[0036] In some embodiments, considering that a child generally sits in the center of the child safety seat in the left-right direction, such as Figure 2 As shown, along the left and right direction of the headrest assembly 03, the head protection mechanism 20 is centrally arranged relative to the headrest body 10. Specifically, the head protection mechanism 20 is at least arranged on the main support portion 131, and further, the left and right sides of the head protection mechanism 20 can extend to the side wings.

[0037] In a specific embodiment, the protruding thickness of the head protection mechanism 20 gradually becomes thinner from the middle to the left and right sides so as to form a smooth transition connection with the supporting surface 12 .

[0038] In some embodiments, the head protection mechanism 20 and the headrest body 10 are integrally formed to reduce the assembly process, and the connection strength and force stability between the head protection mechanism 20 and the headrest body 10 are better.

[0039] In some embodiments, the head protection mechanism 20 is made of foam material, and the foam material includes pearl cotton, foamed polypropylene, foamed polystyrene polyethylene mixture, polystyrene foam, and polyurethane material. The head protection mechanism 20 can be set to be moderately soft and hard, and the foam material has low cost and is easy to process and shape.

[0040] In a specific embodiment, a skin-friendly cushion layer is further provided on the side of the head protection mechanism 20 facing the accommodating space 11. The skin-friendly cushion layer is soft rubber or silicone. Compared with the foam material, the skin-friendly cushion layer can improve the contact comfort of the contact surface 21 of the head protection mechanism 20.

[0041] The above 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, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A headrest assembly, characterized in that: The invention comprises a headrest body and a head protection mechanism, wherein the headrest body is provided with a storage space suitable for accommodating a child's head and a supporting surface facing the storage space for supporting the child's head, and the head protection mechanism is arranged on the top of the headrest body and protrudes relative to the supporting surface toward the side where the storage space is located.

2. The headrest assembly according to claim 1, characterized in that: The maximum height of the head protection mechanism protruding relative to the supporting surface is not less than 3 cm and not more than 5 cm.

3. The headrest assembly according to claim 1 or 2, characterized in that: Along the direction from the bottom to the top of the head guard mechanism, the distance that the head guard mechanism protrudes relative to the supporting surface gradually increases first and then gradually decreases, so that a smooth contact surface is formed on the side of the head guard mechanism facing the accommodating space.

4. The headrest assembly according to claim 3, characterized in that: Along the direction from the bottom to the top of the head protection mechanism, the increasing speed of the protruding distance of the head protection mechanism changes from fast to slow and then to fast.

5. The headrest assembly according to claim 3, characterized in that: The contact surface includes a first curved surface, a first transition surface, a second curved surface, a second transition surface, a third curved surface, a third transition surface, and a fourth curved surface which are sequentially connected from the bottom to the top of the head protection mechanism. The first curved surface is a concave surface, the second curved surface, the third curved surface, and the fourth curved surface are convex surfaces, and the first transition surface, the second transition surface, and the third transition surface are planes.

6. The headrest assembly according to claim 1, characterized in that: The headrest body includes a main support portion, a first side wing and a second side wing, the first side wing is arranged on one side of the main support portion along the left-right direction, the second side wing is arranged on the other opposite side of the main support portion and relative to the first side wing, the main support portion, the first side wing and the second side wing cooperate to form the C-shaped supporting surface.

7. The headrest assembly according to claim 1 or 6, characterized in that: Along the left-right direction of the headrest assembly, the head protection mechanism is centrally arranged relative to the headrest body; the protruding thickness of the head protection mechanism gradually becomes thinner from the middle to the left and right sides.

8. The headrest assembly according to claim 1, wherein: The head protection mechanism is integrally formed with the headrest body.

9. The headrest assembly according to claim 1 or 8, characterized in that: The head protection mechanism is made of foam material, which includes pearl cotton, foamed polypropylene, a foamed polystyrene polyethylene mixture, polystyrene foam, and polyurethane material; a skin-friendly cushion layer is arranged on the side of the head protection mechanism facing the accommodating space, and the skin-friendly cushion layer is soft glue or silicone.

10. A child safety seat, characterized in that: A headrest assembly according to any one of claims 1 to 9 is used.

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