Cushion for magnetic adsorption chair and chair

Abstract

Provide a cushion for a magnetic adsorption type chair and a chair. 【Solution means】The cushion for a magnetic adsorption type chair includes a cushion body 1 and a magnetic block 2. The cushion for a magnetic adsorption type chair further includes a magnetic block fixing member 3. The magnetic block is fixed to the magnetic block fixing member by an elastic tension mechanism. The magnetic block fixing member is fixed to the cushion body. The magnetic block fixing member includes a main body plate. The elastic tension mechanism includes a positioning column whose one end is connected to the main body plate.

Description

Technical Field

[0001] The present invention relates to the technical field of chair headrests, and more specifically, to a cushion for a magnetically adsorbed chair and a chair.

Background Art

[0002] Conventional chairs usually have a headrest against which the head and neck rest. The role of the headrest is to support the neck and relieve neck fatigue caused by a long sitting posture. If the sitting posture is incorrect or the same posture is maintained for a long time, the neck is prone to excessive pressure, but the headrest can effectively disperse these pressures and provide the necessary support for the neck.

[0003] Chinese Patent No. 201922232690.4 discloses an adsorption type headrest that adheres a metal piece to the side of a chair, fixes a magnet piece to the side of the headrest body with an adhesive, and then fixes the headrest to the chair body so that the magnet piece adsorbs the metal piece. However, in the form of fixing the magnet piece with an adhesive, first, the adhesive requires a curing period, so the production cycle becomes long. Second, there is a risk of the adhesive falling off, and there is a problem that the design is unreasonable.

[0004] Therefore, in order to solve the above problems, it is necessary to provide a novel headrest.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention provides a cushion for a magnetically adsorbed chair and a chair in order to solve the problems raised in the above background art.

Means for Solving the Problems

[0006] In order to achieve the object of the above invention, the present invention has taken the following technical means.

[0007] This invention includes a cushion body and a magnetic block, and the magnetic adsorption type chair cushion further includes a magnetic block fixing member. The magnetic block is fixed to the magnetic block fixing member by an elastic tension mechanism, and the magnetic block fixing member is fixed to the cushion body. The magnetic block fixing member includes a main body plate, and the elastic tension mechanism includes a positioning column with one end connected to the main body plate. The positioning column is provided with a split groove that divides at least a part of the positioning column into a plurality of elastic expansion arms. The elastic expansion arms are inserted into the magnetic block and, due to the released elastic force of the elastic expansion arms, provide a magnetic adsorption type chair cushion for fixing the magnetic block.

[0008] Furthermore, the magnetic block has an annular shape, and the elastic tension mechanism is an inner elastic tension mechanism that is inserted into the magnetic block and attached to the outside.

[0009] Furthermore, at the end of at least one of the elastic expansion arms away from the main body plate, there is provided a retaining projection for preventing the magnetic block from detaching from the elastic expansion arm.

[0010] Furthermore, the surface of the main body plate where the positioning column is provided further has a first annular cylinder for accommodating the magnetic block.

[0011] Furthermore, the cushion body is injection molded with a foaming material and fits the magnetic block fixing member.

[0012] Furthermore, a second annular cylinder is provided on the outer edge of the main body plate, and the outer wall of the first annular cylinder, the main body plate, and the inner wall of the second annular cylinder form an annular filling space for filling the foaming material.

[0013] Furthermore, the main body plate is provided with a plurality of reinforcing projections in the annular filling space, and at the connection location of each of the reinforcing projections and the main body plate, there is provided a through hole for communicating with the annular filling space and filling the foaming material.

[0014] Furthermore, a skirt extending radially outward is provided at one end of the second annular cylinder away from the main body plate, and a plurality of through holes for filling a foaming material are provided in the skirt.

[0015] The present invention provides a chair including a chair body with a magnetic member provided thereon, further including the magnetic adsorption type cushion for a chair according to any one of claims 1 to 8, and a chair in which the magnetic block of the magnetic adsorption type cushion for a chair and the magnetic member are magnetically adsorbed.

[0016] Compared with the prior art, the magnetic adsorption type cushion for a chair has the following beneficial effects.

[0017] While ensuring the firmness of the attachment of the headrest body, the risk of detachment due to unstable fixation is avoided. The magnetic block fixing member has an elastic tension mechanism, which fixes the magnetic block to the magnetic block fixing member by the elastic tension mechanism. The magnetic block fixing member is provided in the cushion body so as to be built-in, and the cushion body realizes a magnetic adsorption type fixation with the chair by the magnetic block.

[0018] The drawings constituting a part of the present invention are for providing a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are for explaining the present invention and do not unduly limit the present invention.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Explanation of Reference Numerals

[0020] Cushion body (1), magnetic block (2), mounting hole (21), magnetic block fixing member (3), main body plate (31), positioning column (32), elastic expansion arm (33), retaining projection (4), first annular cylinder (5), second annular cylinder (6), reinforcing projection (7), through hole (8), skirt (9), through hole (91), chair body (a), magnetic member (b).

Embodiments for Carrying Out the Invention

[0021] Hereinafter, the configuration of the embodiments of the present invention will be clearly and completely described with reference to the drawings of the embodiments of the present invention. It is obvious that the described embodiments are only a part, not all, of the present invention. Hereinafter, the description of at least one exemplary embodiment is actually exemplary and does not limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the present invention.

[0022] It should be noted that the terms used here are only for explaining the embodiments for carrying out the invention according to the present invention, and do not limit the exemplary embodiments according to the present invention. As used here, the singular expression also includes the concept of its plural form unless otherwise specified in the context. Also, when the terms "comprising" and / or "including" are used in this specification, it should be understood that features, steps, operations, devices, components and / or combinations thereof exist.

[0023] Unless otherwise specified, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present invention. Note that the dimensions of each part shown in the drawings are not drawn in accordance with the actual proportional relationship for convenience of explanation. Technologies, methods, and devices known to those skilled in the art are omitted from detailed description, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification. In all examples shown and considered herein, any specific value is illustrative and not restrictive. Therefore, other examples of the embodiments may have different values. Note that in the following drawings, the same reference numerals indicate the same characteristics, so if a certain characteristic is defined in one drawing, there is no need to further explain it in the following drawings.

[0024] Example 1: As shown in FIGS. 1 to 4, the cushion for a magnetically adsorbed chair includes a cushion body 1 and a magnetic block 2, and further includes a magnetic block fixing member 3. The magnetic block 2 is fixed to the magnetic block fixing member 3 by an elastic tension mechanism, and the magnetic block fixing member 3 is fixed to the cushion body 1.

[0025] Specifically, the magnetic block 2 is a ferromagnetic block. The cushion for a magnetically adsorbed chair may be a headrest or a lumbar cushion. More specifically, the magnetic block fixing member 3 is made of a plastic material, and the cushion body 1 is injection-molded with a foaming material. The magnetic block fixing member 3 is fitted to ensure connection stability and achieve a good magnetic attraction effect.

[0026] To fix the magnetic block 2 well, as shown in FIGS. 1 and 2, the magnetic block 2 has an annular shape, and the elastic tension mechanism is an inner elastic tension mechanism that is inserted into the magnetic block 2 and attached to the outside. This ensures the fixing stability of the magnetic block 2 and avoids displacement of the magnetic block 2 attached to the magnetic block fixing member 3.

[0027] In order to achieve that the magnetic block fixing member 3 fixes the magnetic block 2 by elastic expansion, as shown in FIGS. 1 to 3, the magnetic block fixing member 3 includes a main body plate 31. The elastic tension mechanism includes a positioning column 32 whose one end is connected to the main body plate 31. The positioning column 32 is provided with a split groove that splits at least a part of the positioning column 32 into a plurality of elastic expansion arms 33. The elastic expansion arms 33 are inserted into the magnetic block 2, and the magnetic block 2 is fixed by the released elastic force of the elastic expansion arms 33.

[0028] In order to prevent the detachment of the magnetic block 2 attached to the elastic expansion arm 33, etc., as shown in FIGS. 1 to 4, a retaining projection 4 for preventing the magnetic block 2 from detaching from the elastic expansion arm 33 is provided at one end of at least one elastic expansion arm 33 away from the main body plate 31. Specifically, in this embodiment, the retaining projection 4 is a conical block in which the end of the elastic expansion arm 33 protrudes outward. A mounting hole 21 is drilled at the center of the magnetic block 2. The magnetic block 2 is inserted into the elastic expansion arm 33 through one end of the mounting hole 21 and placed in the positioning column 32. At this time, the elastic expansion arm 33 protrudes from the other end of the mounting hole 21 and releases the elastic force, so as to expand the retaining projection 4 outward to avoid the detachment of the magnetic block 2, etc.

[0029] In order to facilitate the accommodation of the magnetic block 2, specifically, in this embodiment, the surface of the main body plate 31 where the positioning column 32 is provided further has a first annular cylinder 5 for accommodating the magnetic block 2. The first annular cylinder 5 is any one of an annular cylinder, a triangular cylinder, and a rectangular cylinder. More specifically, a second annular cylinder 6 is provided on the outer edge of the main body plate 31, and the outer wall of the first annular cylinder 5, the main body plate 31, and the inner wall of the second annular cylinder 6 form an annular filling space.

[0030] Achieve a good connection of the magnetic block fixing member 3. As shown in FIGS. 1 to 4, a plurality of reinforcing protrusions 7 are provided in the annular filling space on the main body plate 31, and through holes 8 communicating with the annular filling space are provided at the connection positions between each of the reinforcing protrusions 7 and the main body plate 31. Further, in this embodiment, a skirt 9 extending radially outward is provided at one end of the second annular cylinder 6 away from the main body plate 31, and a plurality of through holes 91 are provided in the skirt 9.

[0031] By providing the reinforcing protrusions 7, the through holes 8, and the through holes 91 in the magnetic block fixing member 3, when the cushion body 1 is injection-molded, the liquid foaming material flows into the reinforcing protrusions 7, the through holes 91, and the annular filling space. Thereby, after the cushion body 1 is cured, the magnetic block fixing member 3 can be stably attached by the cushion body 1.

[0032] In other embodiments (not shown), in order to improve the connection stability between the magnetic block fixing member 3 and the cushion body 1, an uneven pattern may be provided on the surface of the magnetic block fixing member 3. When the cushion body 1 is injection-molded, the contact area with the magnetic block fixing member 3 can be improved, and the connection stability can be further improved.

[0033] Embodiment 2: As shown in FIGS. 1 to 4, the present invention is a chair including a chair body a and a magnetic member b provided on the chair body a, further including the magnetic adsorption type cushion for a chair of the above Embodiment 1, and providing a chair in which the magnetic block 2 of the magnetic adsorption type cushion for a chair and the magnetic member b are magnetically adsorbed. Thereby, the magnetic adsorption type cushion for a chair may be adsorbed to the chair body a.

[0034] To sum up, as is clear from the above description, the present invention has the following technical effects.

[0035] The present invention can ensure the firmness of the attachment of the headrest and avoid the risk of detachment due to unstable fixation. The magnetic block fixing member 3 has an elastic tension mechanism, and the magnetic block 2 is fixed to the magnetic block fixing member 3 by the elastic tension mechanism. The magnetic block fixing member 3 is provided in the cushion body 1 so as to be incorporated therein, and the cushion body 1 realizes magnetic adsorption type fixation with the chair by the magnetic block 2.

[0036] In the description of the present invention, the directional terms or positional relationships such as "front, rear, upper, lower, left, right", "lateral direction, longitudinal direction, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of explanation of the present invention and for simplifying the explanation. Unless there is a contrary explanation, these directional terms do not indicate or imply that the device or element they refer to must have a specific orientation or be configured and operated in a specific orientation, and thus are not intended to limit the scope of the present invention. The directional term "inside, outside" refers to the inside and outside with respect to the contour of each part itself.

[0037] For the convenience of explanation, here, for example, spatially relative terms such as "above...", "above...", "on the upper surface of...", "upper" are used to explain the spatial positional relationship between one device or feature and another device or feature as shown in the figure. Note that the spatially relative terms are intended to include different orientations in use or operation other than the orientation described in the figure of the device. For example, when the device in the drawing is inverted, after being described as "above another device or structure" or "on another device or structure", it will be positioned as "below another device or structure" or "under another device or structure". Therefore, the exemplary term "above..." may include two types of orientations, "above..." and "below...". The device may be in other different forms of positioning (rotated 90 degrees or in other orientations), and the spatially relative explanations used here are correspondingly interpreted.

[0038] Note that the use of terms such as "first" and "second" to limit components is solely for the purpose of easily distinguishing the corresponding components. Unless otherwise specified, these terms have no special meaning and should not be understood as limiting the scope of the present invention.

[0039] The above are only preferred embodiments of the present invention and do not limit the present invention. For those skilled in the art, various modifications and changes are possible to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should all fall within the scope of the present invention.

Claims

1. A cushion for a magnetic adsorption chair, comprising a cushion body (1) and a magnetic block (2), further comprising a magnetic block fixing member (3), wherein the magnetic block (2) is fixed to the magnetic block fixing member (3) by an elastic tension mechanism, and the magnetic block fixing member (3) is fixed to the cushion body (1), the magnetic block fixing member (3) includes a main body plate (31), the elastic tension mechanism includes a positioning column (32) with one end connected to the main body plate (31), and the positioning column (32) is provided with a split groove for splitting at least a part of the positioning column (32) into a plurality of elastic expansion arms (33), and the elastic expansion arms (33) are inserted into the magnetic block (2) and fix the magnetic block (2) by the released elastic force of the elastic expansion arms (33). A cushion for a magnetic adsorption chair characterized by this.

2. The magnetic block (2) has an annular shape, and the elastic tension mechanism is an inner elastic tension mechanism that is inserted into the magnetic block (2) and attached to the outside. The cushion for a magnetic adsorption chair according to claim 1, characterized by this.

3. A retaining projection (4) for preventing the magnetic block (2) from detaching from the elastic expansion arm (33) is provided at one end of at least one of the elastic expansion arms (33) away from the main body plate (31). The cushion for a magnetic adsorption chair according to claim 1, characterized by this.

4. The surface of the main body plate (31) where the positioning column (32) is provided further has a first annular cylinder (5) for accommodating the magnetic block (2). The cushion for a magnetic adsorption chair according to claim 1, characterized by this.

5. The cushion body (1) is injection-molded with a foaming material, and is characterized by fitting the magnetic block fixing member (3). The cushion for a magnetic adsorption chair according to claim 4, characterized by this.

6. A second annular cylinder (6) is provided on the outer edge of the main body plate (31), and the outer wall of the first annular cylinder (5), the main body plate (31), and the inner wall of the second annular cylinder (6) form an annular filling space for filling a foaming material. The cushion for a magnetic adsorption chair according to claim 5, characterized by this.

7. On the main body plate (31), a plurality of reinforcing protrusions (7) are provided in the annular filling space, and at each connection location between each of the reinforcing protrusions (7) and the main body plate (31), a through hole (8) for filling a foaming material is provided in communication with the annular filling space. The cushion for a magnetically adsorbing chair according to claim 6, characterized in that.

8. At one end of the second annular cylinder (6) away from the main body plate (31), a skirt (9) extending radially outward is provided, and the skirt (9) is provided with a plurality of through holes (91) for filling a foaming material. The cushion for a magnetically adsorbing chair according to claim 6, characterized in that.

9. A chair including a chair body (a), wherein a magnetic member (b) is provided on the chair body (a). Further including the cushion for a magnetically adsorbing chair according to any one of claims 1 to 8, characterized in that the magnetic block (2) of the cushion for a magnetically adsorbing chair and the magnetic member (b) are magnetically adsorbed.

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