Seat device with magnetically fixed headrest

Abstract

The present invention provides a seating device equipped with a magnetically fixed headrest. [Solution] The seat device equipped with a magnetically fixed headrest includes a seat unit, a first magnetic attraction unit, a fixing unit 5, and a second magnetic attraction unit 6. The seat unit includes a seating body, a backrest body, and a headrest body 33. The first magnetic attraction unit includes a first magnetic attraction body having a first magnetic attraction surface. The fixing unit includes a fixing body 51 and a positioning structure 52. The positioning structure extends outward from the side of the fixing body. The second magnetic attraction unit includes a second magnetic attraction body 61 having a second magnetic attraction surface. The first magnetic attraction body and the second magnetic attraction body are magnetically attracted to each other, and the first magnetic attraction surface is larger than the second magnetic attraction surface so that the second magnetic attraction body can be attracted to any position on the first magnetic attraction surface by the second magnetic attraction surface.

Description

Technical Field

[0001] The present invention relates to a seat device, and particularly to a seat device provided with a magnetic fixed headrest.

Background Art

[0002] Since modern people use computers for a long time, the time spent sitting on a chair becomes longer. General office chairs (including gaming chairs) provide comfortable seat support for users, helping them maintain a correct posture when working for a long time and reducing fatigue and physical discomfort. Generally, office chairs are equipped with a headrest. The headrest can support the cervical vertebra, reduce muscle tension and pain, relieve the pressure on the shoulders and upper back, provide comfort, and maintain health, enabling users to maintain a correct posture and reduce fatigue even during long-term use.

[0003] Some seats have a headrest support frame installed on the backrest and use a locking structure to adjust the height of the headrest so that users can adjust the headrest to an appropriate position. However, since the entire support structure of the headrest is exposed, it affects the appearance. Some other seats are equipped with a hidden headrest adjustment structure, allowing users to adjust the position of the headrest.

[0004] In Patent Document 1, a head support assembly with a plurality of magnetic bodies installed and capable of adjusting the headrest to two positions is described. Here, the magnetic bodies are locked and fixed to the head support assembly and can be easily removed by users, but the overall structure is unstable. In addition, the plurality of magnetic bodies are installed at intervals left and right, restricting the adjustment position of the headrest, and it is particularly difficult to move the headrest left and right.

[0005] Therefore, how to design a seat that is structurally strong, not easily damaged, and allows users to adjust the position of the headrest over a wide range is an issue that those skilled in the art should urgently solve. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] U.S. Patent No. 12042059 [Overview of the project]

[0007] In view of these points, the object of the present invention is to provide a seating device equipped with a magnetically fixed headrest, the seating device equipped with the magnetically fixed headrest includes a seating unit, a first magnetic attraction unit, a fixing unit, and a second magnetic attraction unit.

[0008] The seat unit includes a seat body, a backrest body connected to the seat body, and a headrest body detachably connected to the backrest body.

[0009] The first magnetic attraction unit is installed on the backrest body and includes a first magnetic attraction body having a first magnetic attraction surface.

[0010] The fixing unit includes a fixing body installed on the headrest body and a positioning structure installed on the side of the fixing body, the positioning structure extending outward from the side of the fixing body.

[0011] The second magnetic attraction unit is installed on the fixed body and includes a second magnetic attraction body having a second magnetic attraction surface, wherein the first magnetic attraction body and the second magnetic attraction body are magnetically attracted to each other, and the first magnetic attraction surface is larger than the second magnetic attraction surface so that the second magnetic attraction body can be attracted to any position on the first magnetic attraction surface by the second magnetic attraction surface.

[0012] In one embodiment, the fixed body comprises a surrounding wall, a bottom wall connected to the bottom of the surrounding wall, and a side stop block connected to the top of the surrounding wall, and the second magnetic attractor is housed in the space defined by the surrounding wall, the bottom wall, and the side stop block.

[0013] In one embodiment, the second magnetic attractor comprises a lower magnetic structure and an upper magnetic structure connected to the lower magnetic structure, the upper magnetic structure being housed in an opening defined by the side stop block.

[0014] In one embodiment, the fixed body further comprises a fixed surface installed on the side stop block, the second magnetic attraction surface is the surface of the upper magnetic structure, and the fixed surface is connected to the second magnetic attraction surface and located on the same plane.

[0015] In one embodiment, the headrest body comprises a headrest surface and a headrest opening provided on the headrest surface, the fixing body is installed in the headrest opening, and the fixing surface is connected to the headrest surface and located on the same plane.

[0016] In one embodiment, the distance between the two sides of the lower magnetic structure is greater than the distance between the two sides of the upper magnetic structure, such that the sides of the second magnetic attractor exhibit a stepped structure.

[0017] In one embodiment, the upper magnetic structure and the lower magnetic structure are circular sheets.

[0018] In one embodiment, the seat unit further includes a cover that is placed over the backrest body, and the cover covers the first magnetic attractor.

[0019] In one embodiment, the positioning structure is installed inside the headrest body, and the positioning structure is provided with a plurality of through holes.

[0020] In one embodiment, the positioning structure further includes a plurality of positioning sheets, the plurality of positioning sheets are dispersedly installed on the side of the fixed main body, and the plurality of through holes are provided on the plurality of positioning sheets.

[0021] Based on the common knowledge in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain each embodiment of the present invention. Specifically, the features within the scope of the utility model registration application of the present invention can be combined with each other in any manner.

[0022] The beneficial effects of the present invention are as follows. Since the first magnetic attraction surface is larger than the second magnetic attraction surface so that the second magnetic attractor can be adsorbed at any position on the first magnetic attraction surface by the second magnetic attraction surface, the user can directly adjust the position of the headrest main body. The fixing surface is connected to the second magnetic attraction surface and is located on the same plane. Since the fixing surface is connected to the headrest surface and is located on the same plane, not only can the entire back surface of the headrest main body be flattened, but the second magnetic attractor can be installed as far outward as possible so that the first magnetic attractor can be adsorbed with the maximum magnetic attraction force. Foaming material can flow in through the through holes provided in the plurality of positioning sheets of the positioning structure. After the foaming material is cured, the fixing unit is firmly fixed to the headrest main body and is not easily damaged.

Brief Description of the Drawings

[0023] [Figure 1] It is a front view of the first embodiment of the seat device provided with the magnetic fixed headrest according to the present invention. [Figure 2] It is an exploded perspective view of the headrest main body according to the first embodiment. [Figure 3] It is a plan view of the fixing unit according to the first embodiment. [Figure 4] It is a side cross-sectional view of the fixing unit according to the first embodiment. [Figure 5] [[ID=2,8]]It is a perspective view of the first magnetic attractor and the headrest main body according to the first embodiment. [Figure 6] It is a partial perspective view of a second embodiment of a seat device provided with a magnetic fixed headrest according to the present invention. [Figure 7] It is a perspective view of a headrest body according to the second embodiment.

Embodiments for Carrying Out the Invention

[0024] The features and technical contents of the related patent applications of the present invention are clearly shown in the following detailed description regarding two embodiments with reference to the drawings. Before proceeding to the detailed description, it should be noted that the same components are denoted by the same reference numerals.

[0025] Referring to FIGS. 1, 2, and 3 showing a first embodiment of a seat device provided with a magnetic fixed headrest according to the present invention, the seat device provided with the magnetic fixed headrest includes a seat unit 3, a first magnetic attraction unit 4, a fixing unit 5, and a second magnetic attraction unit 6.

[0026] The seat unit 3 includes a seating body 31, a backrest body 32 connected to the seating body 31, a headrest body 33 detachably connected to the backrest body 32, and a cover 34 installed to cover the backrest body 32.

[0027] The first magnetic attraction unit 4 includes a first magnetic attractor 41 installed on the backrest body 32 and having a first magnetic attraction surface 411.

[0028] The fixing unit 5 includes a fixing body 51 installed on the headrest body 33 and a positioning structure 52 installed on a side of the fixing body 51, and the positioning structure 52 extends outward from the side of the fixing body 51.

[0029] The second magnetic attraction unit 6 includes a second magnetic attractor 61 installed on the fixing body 51 and having a second magnetic attraction surface 611.

[0030] The first magnetic attractor 41 and the second magnetic attractor 61 are magnetically attracted to each other, and in the first embodiment, both the first magnetic attractor 41 and the second magnetic attractor 61 are magnets, and in actual implementation, the first magnetic attractor 41 or the second magnetic attractor 61 may be, but is not limited to, a magnetically attracted metal (e.g., iron).

[0031] Referring to Figure 1, the seat unit 3 belongs to the category of a general office chair or gaming chair, and in actual implementation, other seats with headrests may be used, but are not limited to these. The cover 34 is of a woven fabric structure, and in actual implementation, the cover 34 may be made of leather, a plastic cover, or the like, but are not limited to these.

[0032] The first magnetic attractor 41 is installed on the backrest body 32 and is positioned at approximately the same height as the seated person's head. Here, the height of the backrest body 32 can be increased, and the height spacing of the first magnetic attractor 41 can be increased. The cover 34 not only covers the backrest body 32 but also covers the first magnetic attractor 41, providing a comfortable seating experience, and the second magnetic attractor 61 can magnetically attract the first magnetic attractor 41 through the cover 34.

[0033] Referring to Figure 2, the headrest body 33 comprises a headrest surface 331 and a headrest opening 332 provided on the headrest surface 331, and the fixing body 51 is installed in the headrest opening 332. The headrest surface 331 of the headrest body 33 is flat, but is not limited to this, and the headrest opening 332 is located in the middle of the headrest surface 331.

[0034] Referring also to Figure 3, the positioning structure 52 comprises a plurality of positioning sheets 521 and a plurality of through holes 522 provided in the plurality of positioning sheets 521, the positioning structure 52 is provided with a plurality of through holes 522, the plurality of positioning sheets 521 are distributed and installed on the sides of the fixed body 51, in the first embodiment described above, the positioning sheets 521 on the upper and lower sides of the fixed body 51 are rectangular sheets, each rectangular sheet is provided with two through holes 522, the positioning sheets 521 on the left and right sides of the fixed body 51 are arc-shaped sheets, each arc-shaped sheet is provided with four through holes 522, in actual implementation the positioning structure 52 may use other structures and is not limited to this preferred embodiment.

[0035] The positioning structure 52 is installed inside the headrest body 33, and the headrest body 33 may be filled with a curable foam material. When manufacturing the headrest body 33, the positioning structure 52 is placed in a mold, then the mold is filled with the foam material, and when the foam material in the mold hardens, it is molded into the headrest body 33. When filling with the foam material, the foam material flows into the through hole 522 of the positioning structure 52, and when the foam material hardens, it firmly clamps the positioning structure 52 and fixes the fixing unit 5 to the headrest body 33. Here, the positioning structure 52 can also provide structural rigidity to the hardened foam material. In actual implementation, the headrest body 33 may be made of other materials, but is not limited thereto. In some embodiments, the back surface of the headrest body 33 may be molded from a curable foam material, and the front and sides of the headrest body 33 may be made from additional elastic cushioning material.

[0036] Referring to Figures 2, 3, and 4, the fixed body 51 comprises a surrounding wall 511, a bottom wall 512 connected to the bottom of the surrounding wall 511, and a side stop block 513 connected to the top of the surrounding wall 511. The second magnetic attractor 61 is housed in the space defined by the surrounding wall 511, the bottom wall 512, and the side stop block 513, and the positioning structure 52 extends laterally from the side of the surrounding wall 511. In some embodiments, the second magnetic attractor 61 is bonded to the fixed body 51 with an adhesive. In some embodiments, the fixed body 51 is made of elastic rubber so that the second magnetic attractor 61 can be pressed into the space defined by the surrounding wall 511, the bottom wall 512, and the side stop block 513.

[0037] In the fixed body 51, the surrounding wall 511 is configured in an annular shape, the bottom wall 512 is connected to the bottom end of the surrounding wall 511 and closes the bottom end of the surrounding wall 511, the side stop block 513 is connected to the top end of the surrounding wall 511 and extends inward to form a circular opening structure, and the opening shape of the headrest opening 332 matches the outer ring shape of the side stop block 513, so that the side stop block 513 can be installed so as to be in close contact with the headrest opening 332.

[0038] In the first embodiment described above, the second magnetic attractor 61 comprises a lower magnetic structure 612 and an upper magnetic structure 613 connected to the lower magnetic structure 612, wherein the upper magnetic structure 613 and the lower magnetic structure 612 are circular sheets, and the centers of the upper magnetic structure 613 and the lower magnetic structure 612 lie on the same axis. In actual implementation, the second magnetic attractor 61 may use a structure of a different shape, but is not limited thereto.

[0039] The distance between the two sides of the lower magnetic structure 612 is greater than the distance between the two sides of the upper magnetic structure 613, such that the sides of the second magnetic attractor 61 exhibit a stepped structure, where the lower magnetic structure 612 is a large circular sheet and the upper magnetic structure 613 is a small circular sheet, the upper magnetic structure 613 is housed in an opening defined by the side stop block 513, the lower magnetic structure 612 is housed in the internal space of the surrounding wall 511, the second magnetic attractor 61 is firmly fitted into the space defined by the surrounding wall 511, the bottom wall 512 and the side stop block 513, the fixing body 51 securely encloses the sides and bottom of the second magnetic attractor 61, the top surface of the upper magnetic structure 613 is the second magnetic attracting surface 611, the second magnetic attracting surface 611 is exposed to the outside and not covered by the fixing body 51.

[0040] Referring to Figures 1, 4, and 5, the fixed body 51 further comprises a fixed surface 514 installed on the side stop block 513, the second magnetic attraction surface 611 is the surface of the upper magnetic structure 613, the fixed surface 514 is connected to the second magnetic attraction surface 611 and is located on the same plane, and the fixed surface 514 is connected to the headrest surface 331 and is located on the same plane, so the fixed surface 514, the second magnetic attraction surface 611 and the headrest surface 331 are located on the same plane, the first magnetic attraction body 41 is a rectangular plate, and the second magnetic attraction surface 611 is a plane. When the headrest body 33 is positioned on the cover 34 outside the first magnetic attraction body 41 by the headrest surface 331, the second magnetic attraction surface 611 is attached to the cover 34 and can generate the maximum magnetic attraction force with the first magnetic attraction body 41.

[0041] In some embodiments, the first magnetic attraction surface 411 may be a curved surface, and the plane consisting of the fixed surface 514, the second magnetic attraction surface 611, and the headrest surface 331 may also be a curved surface. Thus, the two curved surfaces can be matched to each other, and the maximum magnetic attraction force can be obtained between the first magnetic attraction body 41 and the first magnetic attraction body 41.

[0042] Here, the first magnetic attraction surface 411 is larger than the second magnetic attraction surface 611 so that the second magnetic attraction body 61 can be attracted to any position on the first magnetic attraction surface 411 by the second magnetic attraction surface 611. As a result, the user can adjust the vertical and horizontal positions of the headrest body 33 using the backrest body 32. After the position adjustment is complete, the first magnetic attraction body 41 and the second magnetic attraction body 61 magnetically attract each other to fix the position of the headrest body 33.

[0043] Referring to Figures 6 and 7, which show a second embodiment of a seat device equipped with a magnetically fixed headrest according to the present invention, the second embodiment is substantially the same as the first embodiment, so the similarities will not be described in detail here, and the differences are as follows. In the second embodiment, the fixing body 51 in the solution has a rectangular structure as a whole, the distance between the left and right sides of the fixing body 51 is greater than the distance between the top and bottom sides, and the distance between the left and right sides of the headrest body 33 is greater than the distance between the top and bottom sides.

[0044] The surrounding wall 511 is rectangular in shape, the side stop block 513 is installed at the top of the surrounding wall 511 and is configured to form a rectangular opening, the positioning structure 52 surrounds the outside of the surrounding wall 511 and protrudes outward, positioning sheets 521 and multiple through holes 522 are provided on the left and right sides of the surrounding wall 511, and the structure of the second magnetic attractor 61 installed in the fixing unit 5 is rectangular and is firmly covered by the fixing body 51. In actual implementation, the fixing body 51 may have other shapes, but is not limited thereto.

[0045] Since the headrest surface 331, the fixed surface 514, and the second magnetic attraction surface 611 are located on the same plane, the second magnetic attraction surface 611 is positioned closest to the surface of the headrest body 33 without protruding, and the maximum magnetic attraction force can be generated between the first magnetic attraction body 41 and the second magnetic attraction body 61.

[0046] From the above explanation, it can be seen that the seating device equipped with a magnetically fixed headrest according to the present invention has the following effects.

[0047] 1. Concealed design: The cover 34 not only covers the backrest body 32 but also the first magnetic attraction body 41, thereby providing a comfortable seating experience. Since there is no need to install a separate headrest support structure and headrest height adjustment structure in the seat unit 3, this invention has a concealed headrest adjustment design.

[0048] 2. Less prone to damage: The back surface of the headrest body 33 is molded from a curable foam material. During the manufacturing process of the headrest body 33, the foam material flows into the through-hole 522 of the positioning structure 52. Once the foam material hardens, it firmly clamps the positioning structure 52, fixing the fixing unit 5 to the headrest body 33. The fixing unit 5 is not fixed with clamps or screws and is difficult to separate by conventional means. Therefore, it can be considered either inseparable or a permanently installed component, thus the present invention has the advantage of being resistant to damage.

[0049] 3. Expanded range of headrest position adjustment: Since the first magnetic attraction surface 411 is a large rectangular surface and the second magnetic attraction surface 611 is a small circular surface, the left-right distance and the up-down distance of the first magnetic attraction surface 411 are both greater than the structural width of the second magnetic attraction surface 611. In this invention, there is only one second magnetic attraction body 61, so the second magnetic attraction body 61 can be attracted to any position on the first magnetic attraction surface 411 by the second magnetic attraction surface 611. The user can freely adjust the position of the headrest body 33, and this invention can expand the range of headrest position adjustment.

[0050] In summary, since the first magnetic attraction surface 411 is larger than the second magnetic attraction surface 611, the second magnetic attraction body 61 can be attracted to any position on the first magnetic attraction surface 411, allowing the user to freely adjust the position of the headrest body 33. Since the fixing surface 514, the second magnetic attraction surface 611, and the headrest surface 331 are located on the same plane, the second magnetic attraction surface 611 can be positioned outward without protruding, allowing the first magnetic attraction body 41 and the second magnetic attraction body 61 to be in closer contact and generate the maximum magnetic attraction force. The foam material used in the manufacturing process of the headrest body 33 can cover the positioning sheet 521 and pass through the through hole 522. Once the foam material hardens, it securely fixes the fixing unit 5 and is difficult to separate by conventional methods, thus ensuring that the objective of the present invention is achieved.

[0051] The above describes only two embodiments of the present invention, and the scope of implementation of the present invention is not limited thereto. That is, simple and equivalent changes and modifications made based on the scope of the utility model registration application of the present invention and the content of the present invention still fall within the scope of protection of the present invention.

[0052] The scope of protection of this invention is not limited to the specific embodiments described above, but also includes embodiments that are created by arbitrarily combining the technical features of each of the specific embodiments described above. [Explanation of symbols]

[0053] 3-seat unit 31. Seat body 32 Backrest Body 33 Headrest body 331 Headrest surface 332 Headrest opening 34 Cover 4. First Magnetic Attraction Unit 41. First magnetic attractor 411 First magnetic attraction surface 5 Fixed Unit 51 Fixed main unit 511 Encircling wall 512 Bottom wall 513 Side stop block 514 Fixed surface 52 Positioning structure 521 Positioning Sheet 522 Through hole 6. Second Magnetic Attraction Unit 61. Second Magnetic Attractor 611 Second magnetic attraction surface 612 Lower Magnetic Structure 613 Upper magnetic structure

Claims

1. A seating device equipped with a magnetically fixed headrest, It includes a seat unit, a first magnetic attraction unit, a fixing unit, and a second magnetic attraction unit. The seat unit includes a seat body, a backrest body connected to the seat body, and a headrest body detachably connected to the backrest body; The first magnetic attraction unit includes a first magnetic attraction body installed on the backrest body and having a first magnetic attraction surface; The fixing unit includes a fixing body installed on the headrest body, and a positioning structure installed on the side of the fixing body, the positioning structure extending outward from the side of the fixing body; The seating device includes a magnetic fixed headrest, wherein the second magnetic attraction unit is installed on the fixed body and includes a second magnetic attraction body having a second magnetic attraction surface, the first magnetic attraction body and the second magnetic attraction body are magnetically attracted to each other, and the first magnetic attraction surface is larger than the second magnetic attraction surface so that the second magnetic attraction body can be attracted to any position on the first magnetic attraction surface by the second magnetic attraction surface.

2. The seating device comprising a magnetically fixed headrest according to claim 1, wherein the fixed body comprises an enclosing wall, a bottom wall connected to the bottom of the enclosing wall, and a side stop block connected to the top of the enclosing wall, and the second magnetic attractor is housed in the space defined by the enclosing wall, the bottom wall, and the side stop block.

3. The seating device comprising a magnetically fixed headrest according to claim 2, wherein the second magnetic attractor comprises a lower magnetic structure and an upper magnetic structure connected to the lower magnetic structure, the upper magnetic structure being housed in an opening defined by the side stop block.

4. The seating device comprising a magnetic fixed headrest according to claim 3, wherein the fixed body further comprises a fixed surface installed on the side stop block, the second magnetic attraction surface is the surface of the upper magnetic structure, and the fixed surface is connected to the second magnetic attraction surface and located on the same plane.

5. The seating device comprising a magnetically fixed headrest according to claim 4, wherein the headrest body comprises a headrest surface and a headrest opening provided on the headrest surface, the fixing body is installed in the headrest opening, and the fixing surface is connected to the headrest surface and located on the same plane.

6. A seating device comprising a magnetically fixed headrest according to claim 3, wherein the distance between the two sides of the lower magnetic structure is greater than the distance between the two sides of the upper magnetic structure, such that the side of the second magnetic attractor exhibits a stepped structure.

7. The seating device comprising a magnetically fixed headrest according to claim 3, wherein the upper magnetic structure and the lower magnetic structure are circular sheets.

8. The seating device comprising a magnetically fixed headrest according to claim 1, wherein the seating unit further includes a cover placed over the backrest body, and the cover covers the first magnetic attractor.

9. The seat device comprising a magnetically fixed headrest according to claim 1, wherein the positioning structure is installed inside the headrest body, and the positioning structure is provided with a plurality of through holes.

10. The seating device comprising a magnetic fixed headrest according to claim 9, wherein the positioning structure further comprises a plurality of positioning sheets, the plurality of positioning sheets are distributed and installed on the side of the fixed body, and the plurality of through holes are provided in the plurality of positioning sheets.

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