Magnetic headrest and seat comprising same

Abstract

A magnetic headrest and a seat comprising the same relate to the field of headrests for special positions of seats, the magnetic headrest is used for being matched with a chair back provided with magnetic materials at positions corresponding to the head and neck of a human body, the magnetic headrest comprises a pillow core and a pillow case, the pillow case can be sleeved and wrapped outside the pillow core, and the pillow core is provided with a magnetic material. A magnetic attraction piece is fixedly arranged on the back side of the pillowcase. According to the utility model, the permanent magnet is fixed without depending on a structure made of an additional hard material, the softness and comfort of the headrest can be ensured, the installation mode is simple, the headrest can be fixed at any position within a certain range to meet the requirements of different users, and the permanent magnet and the headrest can be linked to meet the magnetic attraction requirement on the premise of saving the cost.

Description

Technical Field

[0001] This utility model relates to the field of headrests for special positions in seats, and more particularly to a magnetic headrest and a seat including the headrest. Background Technology

[0002] Most existing headrests are secured by straps threaded through eyeglass clips on the back of the chair. However, this only fixes the headrest in a fixed position, i.e., where the eyeglass clips are, and cannot meet the needs of all users. Of course, magnetic and Velcro fastening methods have also emerged on the market. Compared to Velcro, magnetic fastening has no requirements on the surface covering materials of the headrest and backrest, whether it is cloth, leather, or other common and widely used materials. Therefore, magnetic headrests, as a structure that can be adjusted according to individual needs, have higher application value in the market.

[0003] In the prior art, Chinese utility model patent CN216627990U mentions an adsorption-type chair headrest. This headrest is positioned and assembled with the chair back via a magnetic assembly. The headrest includes a headrest body and a positioning plate located on the back of the headrest body. The magnetic assembly includes a magnet located on the positioning plate. The headrest body and the positioning plate with embedded magnets are integrally molded using a foaming process. This structure provides a secure assembly.

[0004] While existing technologies solve the problem of adjusting the fixed position and ensure a secure connection between the headrest and the seat, the installation of their magnetic structure relies on relatively rigid materials, such as the positioning plate mentioned above. The foam-molded manufacturing method not only increases the production cost of the product but also increases the weight of the headrest. The size of the permanent magnet may also need to be further increased to enhance the magnetic attraction. In addition, the positioning plate restricts the back contour of the headrest, preventing it from effectively conforming to the ferromagnetic material on the chair back. In other words, the seat to be used needs to be specially made. The relatively rigid structure of the positioning plate also increases the overall comfort of the headrest. The headrest should have a relatively soft overall structure, and the higher the degree of deformation, the better the support and comfort for the human head and neck. Utility Model Content

[0005] The technical problem this invention aims to solve is how to provide a magnetic headrest that meets the needs of more users while ensuring softness and comfort.

[0006] To achieve the above objectives, according to one aspect of the utility model, a magnetic headrest is provided for use with a chair back fitted with magnetic material at the corresponding head and neck position. The headrest includes a pillow core and a pillowcase. The pillowcase can be fitted and wrapped around the outside of the pillow core, and one or more magnetic elements are fixedly provided on the back side of the pillowcase.

[0007] The "back side" of a pillowcase refers to the side of the pillowcase facing the chair back when in use; "magnetic material" refers to materials such as iron, cobalt, and nickel that can be attracted by a magnet. Furthermore, magnetic materials are classified into two categories based on their properties: metallic and non-metallic. Metallic magnetic materials include electrical steel, nickel-based alloys, and rare-earth alloys; non-metallic magnetic materials are mainly ferrite materials.

[0008] As a preferred embodiment of the above technical solution, the pillowcase has a storage pocket on the back side, the magnetic component is disposed inside the storage pocket, and the magnetic component is sealed inside the storage pocket by sewing thread.

[0009] The reason why the storage pocket is sewn onto the pillowcase instead of directly onto the headrest is that the headrest is a one-piece structure with a relatively high thickness. Sewing it onto the headrest is much more difficult than sewing it onto a single piece of fabric. If the sewn storage pocket comes undone or the permanent magnet fails and needs to be replaced, the recovery process is relatively difficult.

[0010] As a preferred embodiment of the above technical solution, the normal of the spine line on the back side of the pillow core is inclined downwards towards the seat.

[0011] As a preferred embodiment of the above technical solution, the pillowcase has a keel structure on the back side.

[0012] As a preferred embodiment of the above technical solution, the keel structure includes at least two transverse reinforcing ribs and at least two longitudinal reinforcing ribs; the transverse reinforcing ribs are arranged transversely along the back contour of the pillowcase, and the longitudinal reinforcing ribs are arranged longitudinally along the back contour of the pillowcase.

[0013] As a preferred embodiment of the above technical solution, the keel structure is a support structure made of rubber and plastic material.

[0014] As a preferred embodiment of the above technical solution, the pillow core is a core structure filled with a lightweight filling material.

[0015] As a preferred embodiment of the above technical solution, the keel structure is disposed inside the pillowcase.

[0016] As a preferred embodiment of the above technical solution, the accommodating bag is disposed on the inner side of the pillowcase.

[0017] A chair includes a backrest and a magnetic headrest as described in any of the above technical solutions. A connecting layer made of ferromagnetic material is provided on the backrest corresponding to the head and neck of the human body. The magnetic headrest and the backrest are detachably connected to the magnetic component through the connecting layer.

[0018] In summary, this utility model has the following advantages:

[0019] 1. This utility model does not rely on the structure of the fixed permanent magnet made of external hard material, which can ensure the softness and comfort of the headrest and the installation method is simple. It can fix the headrest in any position within a certain range to meet the needs of different users, and can connect the permanent magnet with the headrest to meet the magnetic attraction requirement while saving costs.

[0020] 2. Furthermore, fabric-made storage bags are inexpensive and relatively simple to sew, and the replacement cost is relatively low should the permanent magnet fail.

[0021] 3. Considering the support performance of the pillowcase, this application constructs a contour line with the pillow core facing the chair back to make the pillow core fit the chair back more closely, thereby shifting the center of gravity of the headrest to the chair back, reducing the burden on the pillowcase, and preventing the entire headrest from tilting forward away from the chair back, thus affecting the overall comfort of the headrest; in another aspect of this utility model, the added keel structure enhances the support performance of the pillowcase, preventing the pillowcase from tilting away from the chair back due to the pulling of the pillow core, thus affecting the comfort of the headrest; either of the above two aspects, or their combination, can effectively solve the problem of pillowcase support for the pillow core, thereby improving comfort.

[0022] Further or other beneficial effects will be discussed in the embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a force analysis diagram of the pillow core and pillowcase of this utility model under one condition;

[0025] Figure 3 Diagram of the spine on the back of the headrest;

[0026] Figure 4 This is a schematic diagram of the internal structure of the back side of the pillowcase of this utility model;

[0027] Among them, 1-pillow core, 2-pillowcase, 3-magnetic component, 4-storage bag, 5-keel structure, 51-transverse reinforcing rib, 52-longitudinal reinforcing rib, 6-chair back, 7-connecting layer. Detailed Implementation

[0028] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0029] The present invention will be further explained below with reference to the embodiments: Example

[0030] A magnetic headrest for use with a chair back that has magnetic materials attached to the corresponding head and neck area. Please refer to [reference needed]. Figure 1 The headrest includes a pillow core 1 and a pillowcase 2. The pillowcase 2 can be fitted over and wrapped around the pillow core 1. One or more magnetic attachments 3 are fixedly installed on the side of the pillowcase 2 away from the user's lying position. A storage pocket 4 is provided on the side of the pillowcase 2 away from the user's lying position. The magnetic attachments 3 are permanent magnets, which are placed inside the storage pocket 4 and sealed within the storage pocket 4 by sewing thread. The reason for sewing the storage pocket 4 onto the pillowcase 2 instead of directly onto the headrest is that the headrest is a one-piece structure with a relatively high thickness. Sewing onto it is much more difficult than sewing onto a single piece of fabric. In reality, there are no cases of directly sewing onto a block of material. Moreover, most headrests on the market currently use leather, technical fabric, or breathable fabric for outer support, making sewing on the surface of these materials even more difficult. Therefore, if the sewn storage pocket comes undone or the permanent magnet fails and needs replacement, restoration is relatively difficult. For this reason, the headrest may be discarded. It should be noted that the headrest involved in this utility model is a detachable structure. However, not everyone who sits in an office chair or car seat prefers to use a headrest. Therefore, there is a possibility that the permanent magnet may become damaged due to accidental discarding. In addition, the permanent magnet on the headrest with the added positioning plate is generally embedded, or the positioning plate is easy to install and remove, making it much easier to replace the permanent magnet. Therefore, the design of the positioning plate structure does not need to consider the difficulty of reinstalling the permanent magnet (the disadvantages of the positioning plate have been explained in the background art and will not be elaborated further).

[0031] The way the pillowcase 2 is placed on top of the pillow core 1 also has a problem. Because the pillowcase 2 itself is relatively lightweight, it usually doesn't have a corresponding support structure inside. If the pillow core 1 is relatively heavy and its center of gravity shifts away from the backrest 6, then the following will occur: Figure 2 In this situation, pillow core 1 pulls pillowcase 2 towards the direction of j1 in the diagram, while the back of pillowcase 2 is magnetically attracted, making the headrest very uncomfortable.

[0032] This utility model solves the above problems in the following ways, which can be one of the three methods, a combination of two methods, or even a combination of the three methods:

[0033] In one embodiment of this utility model, considering that the structural design of the back side of the pillow core 1 is more in line with the chair back 6, ensuring that the center of gravity of the headrest is closer to the chair back 6, the normal j3 of the ridge line j2 on the back side of the pillow core 1 is inclined downward towards the chair back 6, referring to... Figure 3 As shown.

[0034] In another embodiment of this utility model, the pillow core 1 is filled with a lightweight filling material, such as foam plastic, air gel, down, polyester cotton, etc., to reduce the weight of the pillow core 1 as much as possible.

[0035] In another embodiment of this utility model, referring to Figure 4 The pillowcase 2 has a keel structure 5 on the side facing the seat. The keel structure 5 enhances the support performance of the pillowcase 2, preventing it from tilting away from the backrest 6 due to the pull of the pillow core 1, thus affecting the comfort of the headrest. It should be noted that the keel structure 5 in this application is different from the positioning plate mentioned above. The positioning plate mainly provides a frame for the permanent magnet to be installed, while the keel structure 5 in this application is mainly for support performance. In addition, considering the comfort of lying down, the keel structure 5 in this application includes at least two transverse reinforcing ribs 51 and at least two longitudinal reinforcing ribs 52. The transverse reinforcing ribs 51 are arranged transversely along the back contour of the pillowcase 2, and the longitudinal reinforcing ribs 52 are arranged longitudinally along the back contour of the pillowcase 2. The overall arrangement of the keel is suitable for the contour of the human head and neck, so there is no feeling of hard object resistance when lying on the headrest. The keel structure 5 is a support structure made of rubber and plastic material, which reduces the weight of the keel structure 5 and the entire headrest, and also reduces the magnetic load on the magnetic components 3, avoiding the use of large permanent magnets. To protect the keel from impact damage, the keel structure 5 is located inside the pillowcase 2.

[0036] Similarly, as a form of protection, the containment bag 4 is located on the inside of the pillowcase 2.

[0037] A chair includes a backrest 6 and a magnetic headrest as described in the above embodiment. A connecting layer 7 made of magnetic material is provided on the backrest 6 corresponding to the head and neck of the human body. The magnetic headrest and the backrest 6 are detachably connected to the magnetic component 3 through the connecting layer 7.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A magnetic headrest for use with a chair back fitted with magnetic material at the corresponding head and neck positions, characterized in that, The pillowcase includes a pillow core and a pillow cover. The pillow cover can be fitted and wrapped around the outside of the pillow core. One or more magnetic attachments are fixedly provided on the back side of the pillow cover. The normal of the ridge line on the back side of the pillow core is inclined downwards towards the seat.

2. The magnetic headrest according to claim 1, characterized in that, The pillowcase has a storage pocket on the back side, and the magnetic component is disposed inside the storage pocket. The magnetic component is also sealed inside the storage pocket by sewing thread.

3. A magnetic headrest according to claim 1, characterized in that, The pillowcase has a keel structure on the back.

4. A magnetic headrest according to claim 3, characterized in that, The keel structure includes at least two transverse reinforcing ribs and at least two longitudinal reinforcing ribs; the transverse reinforcing ribs are arranged transversely along the back contour of the pillowcase, and the longitudinal reinforcing ribs are arranged longitudinally along the back contour of the pillowcase.

5. A magnetic headrest according to claim 3 or 4, characterized in that, The keel structure is a support structure made of rubber and plastic materials.

6. A magnetic headrest according to claim 1, characterized in that, The pillow core is a core structure filled with a lightweight filling material.

7. A magnetic headrest according to claim 3 or 4, characterized in that, The keel structure is located inside the pillowcase.

8. A magnetic headrest according to claim 2, characterized in that, The accommodating bag is located inside the pillowcase.

9. A type of seat, characterized in that, The device includes a chair back and a magnetic headrest as described in any one of claims 1-8. A connecting layer made of magnetic material is provided on the chair back corresponding to the head and neck of the human body. The magnetic headrest and the chair back are detachably connected to the magnetic component through the connecting layer.

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