Ergonomic lumbar massager with automatic reset function

The lumbar massager with rotatable cases and a tension spring addresses the challenge of adapting to different waist sizes, providing both support and comfort while ensuring ease of use and durability.

JP3256387UActive Publication Date: 2026-06-26XIAMEN TANGKA INFO CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
XIAMEN TANGKA INFO CO LTD
Filing Date
2026-04-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Conventional lumbar massagers struggle to adapt to different waist sizes, offering either strong support or comfort but not both, and are difficult to reuse due to rigid structures that do not accommodate body torsion.

Method used

A lumbar massager with a rotatable first and second bottom case connected by an elastic member, allowing the cases to adjust to the user's waist and return to their initial state, featuring a tension spring for durability and ease of assembly.

Benefits of technology

The massager provides both support strength and comfort by adjusting to the user's waist, ensuring repeated usability and reduced wear-and-tear, with a tension spring enhancing durability and assembly efficiency.

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Abstract

We offer an ergonomically designed lumbar massager that balances support strength and comfort, and features an automatic return mechanism. [Solution] The self-returning ergonomic lumbar massager includes a massager body and a mounting belt, the mounting belt being attached to the massager body, the massager body being attached to the user's waist by the mounting belt, the massager body including a first bottom case and a second bottom case, the first bottom case being rotatably fitted into the second bottom case, an elastic member being provided between the first bottom case and the second bottom case, both ends of the elastic member being attached to the first bottom case and the second bottom case respectively, and the material of both the first bottom case and the second bottom case being hard plastic. This invention has the effect of achieving both support strength and comfort in a lumbar massager.
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Description

Technical Field

[0006] , ,

[0001] This application relates to the field of massagers, and particularly to a lumbar massager based on ergonomics that can automatically return.

Background Art

[0002] There are a very large number of lumbar massagers currently on the market, mainly including functional types such as electric massage, airbag compression, and heat. Problems such as long hours of sitting due to modern people's desk work and lack of exercise are becoming increasingly prominent day by day, lumbar health problems are gradually being taken seriously, and the demand for lumbar massagers is continuously increasing. Conventional lumbar massagers mainly include a rigid bracket, a massager body, and an elastic belt. The massager body is fixedly attached to the rigid bracket, the elastic belt is fixedly attached to the rigid bracket, and is worn on the waist through the elastic belt.

[0003] Regarding the above related technology, after the rigid bracket is worn on the waist, it is difficult to deform or shift in position due to body torsion, and has strong support strength. However, this massager is difficult to adapt to users with different waist sizes and is slightly lacking in comfort during wearing.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This application provides a lumbar massager based on ergonomics that can automatically return in order to achieve both support strength and comfort in the lumbar massager.

Means for Solving the Problems

[0005] The following technical solutions are adopted for the lumbar massager based on ergonomics that can automatically return provided in this application.

[0006] The lumbar massager based on ergonomics that can automatically return includes a massager body, The massager body includes a first bottom case and a second bottom case, the first bottom case being rotatably fitted into the second bottom case, an elastic member being provided between the first bottom case and the second bottom case, and both ends of the elastic member being attached to the first bottom case and the second bottom case, respectively.

[0007] By employing the above technical solution, when a user attaches the massager to their waist by wearing a belt, both the first and second bottom cases rotate according to the user's waist condition to fit the user's waist well, thereby achieving both support strength and comfort in the lumbar massager. Furthermore, after the user stops using it, the first and second bottom cases are returned to their initial state by an elastic member, making it easy for different users to reuse it repeatedly.

[0008] Selectively, the type of elastic member is a tension spring.

[0009] By employing the above technical solutions, the tension spring has higher durability compared to elastic members such as rubber columns or leaf springs, making it suitable for long-term use.

[0010] Selectively, the massager body is provided with several mounting posts, the first bottom case and the second bottom case are provided with corresponding mounting posts, the elastic member is provided with a mounting ring, the mounting ring is fitted onto the mounting post, and a position limiting bolt is screwed into the mounting post.

[0011] By employing the above technical solution, during the assembly of the massager body, the elastic member is fitted onto the mounting column using a mounting ring, and then fixed in place using a position-limiting bolt, which is certainly advantageous in terms of assembly efficiency.

[0012] The material of both the first bottom case and the second bottom case is optionally rigid plastic.

[0013] By adopting the above technical solutions, it is advantageous to achieve both structural strength and weight in the massager.

[0014] Selectively, the first bottom case and the second bottom case are symmetrical along the rotational connection between the first bottom case and the second bottom case.

[0015] By employing the above technical solution, the first and second bottom cases can be comfortably attached to the waist, reducing discomfort caused by differences in how they feel when worn on both sides of the waist. Selectively, the first bottom case is provided with a first projection, and the second bottom case is provided with a second projection. When the angle between the first and second bottom cases is at its maximum, the first projection abuts against and fits with the second projection.

[0016] By adopting the above technical solution, it is advantageous to reduce the occurrence of situations in which the first bottom case and the second bottom case are damaged due to an excessively large rotation angle.

[0017] A mounting cover is optionally attached to the massager body, and a bottom case panel is fitted and attached to the mounting cover.

[0018] By adopting the above technical solution, it is easy to replace and assemble different styles of bottom case panels according to product demand, thereby allowing the massager to satisfy the preferences of different users.

[0019] Selectively, the mounting cover includes a first mounting case, a second mounting case, and an intermediate bottom case, the first and second mounting cases being mounted on a first bottom case and a second bottom case, respectively, the first and second mounting cases both covering the intermediate bottom case, the intermediate bottom case being located between the first and second mounting cases, and the first and second bottom cases both being rotatably fitted into the intermediate bottom case.

[0020] By adopting the above technical solution, when the first bottom case and the second bottom case are bent, the rotating part is shielded by the middle bottom case, which is advantageous for ensuring the visual integrity of the massager. Also, dust and dirt are less likely to enter the inside of the first bottom case and the second bottom case.

[0021] Optionally, the materials of the first mounting case, the second mounting case, the middle bottom case and the bottom case panel are all hard plastics.

[0022] By adopting the above technical solution, the plastic material is light, and the temperature difference from the user's body temperature during wearing is small, which is advantageous for further ensuring comfort.

[0023] Optionally, a flexible contact pad is attached to the massager body, and the massager body abuts against the waist through the flexible contact pad.

[0024] By adopting the above technical solution, the flexible contact pad further increases the contact area between the massager and the waist, which is advantageous for further ensuring comfort.

Effects of the Invention

[0025] As described above, the present application includes at least one of the following beneficial technical effects. 1. When the user wears the massager on the waist by wearing the belt, the first bottom case and the second bottom case both rotate according to the user's waist condition so as to fit well with the user's waist, whereby it is possible to achieve both support strength and comfort in the waist massager. Also, after the user stops using, the first bottom case and the second bottom case are restored to their initial states by the elastic member, facilitating repeated use by different users. 2. The tension spring has higher durability compared to elastic members such as rubber columns or leaf springs and is suitable for long-term use.

Brief Description of the Drawings

[0026] [Figure 1] This is a schematic diagram of the entire massager according to an embodiment of the present application. [Figure 2] This is an exploded schematic diagram of the attachment cover and the bottom case panel according to an embodiment of the present application. [Figure 3] This is a schematic diagram of the interior of the first bottom case and the second bottom case according to an embodiment of the present application. [Figure 4] This is an enlarged schematic diagram of part A in FIG. 3. [Figure 5] This is a schematic diagram of a cross-section of the massager body according to an embodiment of the present application.

Mode for Carrying Out the Invention

[0027] Hereinafter, the present application will be described in more detail with reference to FIGS. 1 to 5.

[0028] The embodiment of the present application discloses a lumbar massager based on ergonomics that can automatically return. Referring to FIG. 1, the lumbar massager based on ergonomics that can automatically return includes a massager body 1 and a wearing belt 2. The wearing belt 2 is fixedly attached to the massager body 1, and both ends of the head and tail of the wearing belt 2 can be repeatedly connected and separated, thereby facilitating the attachment of the massager body 1 to the user's waist by the wearing belt 2. For example, the repeated connection and separation of both ends of the head and tail of the wearing belt 2 can be realized by a magic tape or a snap button.

[0029] Referring to Figures 2 and 3, the massager body 1 includes a first bottom case 11 and a second bottom case 12. The two connecting ends of the mounting belt 2 are fixedly attached to the first bottom case 11 and the second bottom case 12, respectively. Massage elements, such as a vibration element and a heating element, are fixedly attached to the first bottom case 11 and the second bottom case 12. The material of the first bottom case 11 and the second bottom case 12 is hard plastic to ensure the support strength of the first bottom case 11 and the second bottom case 12. In the embodiment of the present application, the hard plastic may be a plastic that is less prone to localized indentation when pressed, such as acrylonitrile-butadiene-styrene copolymer (ABS) and / or polycarbonate (PC). An intermediate rotating shaft 13 is provided between the first bottom case 11 and the second bottom case 12, and both the first bottom case 11 and the second bottom case 12 are rotatably fitted onto the intermediate rotating shaft 13, thereby allowing the first bottom case 11 to rotatably fit onto the second bottom case 12. The first bottom case 11 and the second bottom case 12 are provided symmetrically along the intermediate rotating shaft 13, thereby allowing the first bottom case 11 and the second bottom case 12 to be symmetrical along the rotatable connection between them. In this application, the symmetrical arrangement of the first bottom case 11 and the second bottom case 12 means that the specifications of the first bottom case 11 and the second bottom case 12 are substantially the same, with no obvious differences in shape, size, or length, making it easy for the user to symmetrically attach the first bottom case 11 and the second bottom case 12 to both sides of the waist.

[0030] Referring to Figure 4, the massager body 1 is integrally provided with two mounting posts 14, and the first bottom case 11 and the second bottom case 12 each have one corresponding mounting post 14. An elastic member 15 is provided between the first bottom case 11 and the second bottom case 12, and in this embodiment of the present invention, the type of elastic member 15 is preferably a tension spring. The elastic member 15 is provided with two mounting rings 151, and the two mounting rings 151 are integrally provided at both ends of the elastic member 15. When the mounting rings 151 are fitted onto the mounting posts 14, the elastic member 15 can return to its original position in a timely manner when the angle between the first bottom case 11 and the second bottom case 12 changes due to rotation. A position limiting bolt 141 is screwed into the mounting post 14, and since the diameter of the head of the position limiting bolt 141 is larger than the diameter of the mounting post 14, the elastic member 15 is less likely to fall off.

[0031] The first bottom case 11 is integrally provided with a first projection 111, and the second bottom case 12 is integrally provided with a second projection 121. When the angle between the first bottom case 11 and the second bottom case 12 is at its maximum value, the elastic member 15 is normally in a tensile state, and the first projection 111 abuts and fits into the second projection 121, thereby reducing the occurrence of damage to the first bottom case 11 and the second bottom case 12 due to an excessively large rotation angle.

[0032] A mounting cover is attached to the massager body 1, and the mounting cover is provided with a bottom case panel. The mounting cover includes a first mounting case 3, a second mounting case 4, and an intermediate bottom case 5, and the materials of the first mounting case 3, the second mounting case 4, the intermediate bottom case 5, and the bottom case panel are all made of hard plastic. The first mounting case 3 and the second mounting case 4 are fixedly attached to the first bottom case 11 and the second bottom case 12, respectively, by bolts. Both the first mounting case 3 and the second mounting case 4 are covered by the intermediate bottom case 5, which is located between the first mounting case 3 and the second mounting case 4, and the intermediate bottom case 5 is rotatably fitted onto the intermediate rotating shaft 13, and both the first bottom case 11 and the second bottom case 12 can be rotatably fitted onto the intermediate bottom case 5.

[0033] The first mounting case 3 and the second mounting case 4 each have several engagement openings 101. The bottom case panel is elastic and includes a first panel 31 and a second panel 41. The first panel 31 and the second panel 41 are engaged and fitted into the first mounting case 3 and the second mounting case 4, respectively, by buckles (not shown) that fit into the engagement openings 101, making it easy for the assembler to quickly assemble the first panel 31 and the second panel 41 by pressing them.

[0034] Referring to Figure 5, a flexible contact pad 6 is fixedly attached to the massager body 1, and the inside of the flexible contact pad 6 is filled with sponge. The massager body 1 comes into contact with the lower back via the flexible contact pad 6, which increases the contact area between the massager and the lower back, thus ensuring comfort.

[0035] The implementation principle of the automatically returnable ergonomic lumbar massager of the embodiment of the present invention is as follows: When the user attaches the massager to their waist by putting on the attachment belt 2, both the first bottom case 11 and the second bottom case 12 rotate according to the user's waist condition to change the clamping angle so as to fit the user's waist well, thereby achieving both support strength and comfort in the lumbar massager. Furthermore, after the user stops using it, the first bottom case 11 and the second bottom case 12 are returned to their initial state by the elastic member 15, making it easy for different users to use it repeatedly.

[0036] The above are all preferred embodiments of the present application and do not limit the scope of protection thereunder. Therefore, equivalent modifications made based on the structure, shape, and principle of the present application should all be included within the scope of protection. [Explanation of Symbols]

[0037] 1…Massage device body, 101... Depot, 11…First bottom case, 111...first protrusion, 12...Second bottom case, 121…Second protrusion, 13…Intermediate rotation axis, 14…Mounting posts, 141... Position limiting bolt, 15...Elastic member, 151... Mounting ring, 2...Attachment belt, 3…First mounting case, 31…Panel 1, 4…Second mounting case, 41…Panel 2, 5…Mid-bottom case, 6… Flexible contact pad.

Claims

1. An ergonomically designed lumbar massager with automatic return capability, comprising a massager body (1), the massager body (1) comprising a first bottom case (11) and a second bottom case (12), the first bottom case (11) being rotatably fitted into the second bottom case (12), an elastic member (15) being provided between the first bottom case (11) and the second bottom case (12), and both ends of the elastic member (15) being attached to the first bottom case (11) and the second bottom case (12), respectively.

2. The self-returning ergonomic lumbar massager according to claim 1, characterized in that the first bottom case (11) and the second bottom case (12) are symmetrical along the rotational connection portion between the first bottom case (11) and the second bottom case (12).

3. The self-returning ergonomic lumbar massager according to claim 1, characterized in that the type of elastic member (15) is a tension spring.

4. The self-returning ergonomic lumbar massager according to claim 3, characterized in that the massager body (1) is provided with several mounting posts (14), the first bottom case (11) and the second bottom case (12) are provided with corresponding mounting posts (14), the elastic member (15) is provided with mounting hanging rings (151), the mounting hanging rings (151) are fitted onto the mounting posts (14), and position limiting bolts (141) are screwed into the mounting posts (14).

5. The self-returning ergonomic lumbar massager according to claim 1, characterized in that the material of both the first bottom case (11) and the second bottom case (12) is hard plastic.