Massage chair's close-contact transmission mechanism

The close-contact transmission mechanism in massage chairs uses wire ropes and rotating wheels to stabilize and uniformly distribute massage force, addressing structural complexity and instability, enhancing comfort and durability.

JP2026057452APending Publication Date: 2026-04-02SHANGHAI RONGTAI HEALTH TECHNOLOGY CORPORATION LIMITED
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-04-02

AI Technical Summary

Technical Problem

Existing massage chairs face challenges in providing uniform and stable massage force over the back due to complex structures and instability of drive devices, which often result in discomfort and structural issues like belt distortion or loosening.

Method used

A close-contact transmission mechanism using wire ropes and rotating wheels with screw portions to reciprocate a massage mechanism, ensuring it adheres closely to the body and maintains consistent force, enhanced by a motor-driven shaft system.

Benefits of technology

The mechanism provides a stable, uniform massage experience by adhering to body contours, expanding massage range, and improving durability and safety through wire ropes, while simplifying the structure and reducing weight and cost.

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Abstract

To provide a suitable transmission mechanism for massage chairs. [Solution] The adapted transmission mechanism for a massage chair according to the present invention comprises a massage chair seat 10 and a massage machine 20. The massage chair seat 10 has a chair frame 11, with first ropes 12 installed on the left and right sides of the front of the chair frame 11, and second ropes 13 installed on the left and right sides of the rear of the chair frame 11. A first shaft 21 and a second shaft 22 are pivotally mounted on the front and rear of the massage machine 20, and a first rotating wheel 211 is installed on the left and right sides of the first shaft 21. A first screw portion 212 is provided on the first rotating wheel 211, and the first rope 12 is wound around the first screw portion 212. A second rotating wheel 221 is installed on the left and right sides of the second shaft 22, with a second screw portion 222 provided on the second rotating wheel 221, and the second rope 13 is wound around the second screw portion 222.
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Description

Technical Field

[0001] The present invention relates to a close transmission mechanism of a massage chair, and more particularly to a close transmission mechanism of a massage chair that can reciprocate and perform massage while closely adhering to the human body.

Background Art

[0002] There are major muscles, bones, and the spine on the back of the human body. Compared with the limbs, the spine is difficult to move, so it is common to purchase a massage device to massage the back. It is possible to arrange a large number of massage mechanisms to massage the entire back, but this will complicate the structure, increase the weight, and increase the cost. Therefore, if the entire back can be massaged by reciprocating a single massage mechanism, it can be simplified and the cost can be reduced.

[0003] Also, when reciprocating the massage mechanism, it is necessary to consider the shape of each user's back. If the massage mechanism cannot closely adhere to the human body, there will be a problem that the force becomes uneven and it is easy to feel uncomfortable.

[0004] In the conventional transmission massage machine, in the conventional patent documents, for example, in the following Patent Document 1, it is disclosed that “… the massage kit has a drive device composed of a speed reducer and a motor, and the drive device has a transmission shaft extending toward both sides …”. However, as described above, those having a drive device only use the central part as a fulcrum, so there is a problem that the drive device shakes up, down, left, and right and becomes unstable. Therefore, it cannot move over a long distance, and there are problems such as the first winding belt and the second winding belt being distorted or loosened, which affect the massage.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] Therefore, after diligent research, the inventors discovered that the above objective could be achieved by adopting the following configuration of the close-contact transmission mechanism of a massage chair, and thus completed the present invention.

[0007] This invention has been made in view of the above circumstances, and its purpose is to provide a close-contact transmission mechanism for a massage chair that is reciprocating, can perform massage in close contact with the human body, has a simplified structure, and provides uniform massage force. [Means for solving the problem]

[0008] To achieve the above objective, a close-contact transmission mechanism for a massage chair, according to one aspect of the present invention, comprises a massage chair seat and a massage machine. The massage chair seat has a chair frame, and first ropes are installed on the left and right sides of the front of the chair frame, and second ropes are installed on the left and right sides of the rear of the chair frame, and the first and second ropes are wire ropes. A first shaft and a second shaft are pivotally mounted on the front and rear of the massage machine, and first rotating wheels are installed on the left and right sides of the first shaft, respectively. The first rotating wheel is provided with a first screw portion, and the first rope is wound around the first screw portion. Second rotating wheels are installed on the left and right sides of the second shaft, respectively, and second rotating wheels are provided with a second screw portion, and the second rope is wound around the second screw portion. The massage machine is equipped with a motor for rotating the first shaft or the second shaft. The drive wheels engage with the first and second rotating wheels, causing both the first and second rotating wheels to rotate in the same direction. When the first rotating wheel winds up the first rope, the second rotating wheel releases the second rope, or when the first rotating wheel releases the first rope, the second wheel winds up the second rope, causing the massage machine to reciprocate back and forth along the inside of the chair frame. Massage components are installed on the surface of the massage machine to provide a massage to the user sitting in the massage chair seat.

[0009] The present invention aims to enable the massage machine to reciprocate in order to achieve a massage effect by transmitting power between the first and second rotating wheels via the transmission wheel, and by allowing the first and second screw portions to wind up and release the first and second ropes, thereby enabling the massage machine to reciprocate in order to achieve a massage effect, and by making the massage machine more closely fitted to the human body through tension of the first and second ropes, the width and force of the massage are matched, making it more comfortable, and because the first and second ropes are made of wire rope, safety is further enhanced, they are less likely to break, they are more robust, and their durability is increased.

[0010] Other objects, structures, and effects of the present invention will become apparent from the following section on embodiments of the invention. [Brief explanation of the drawing]

[0011] [Figure 1] This is a perspective view showing the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Figure 2] This is an exploded view showing the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Figure 3] This is a front view showing a massage machine according to one embodiment of the present invention. [Figure 4] This is a side cross-sectional view showing the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Figure 5] This is a schematic diagram of a transmission wheel according to one embodiment of the present invention in a meshed state. [Figure 6] This is a schematic diagram of a transmission wheel according to one embodiment of the present invention in a transmission state. [Figure 7] This is a schematic diagram showing a massage machine according to one embodiment of the present invention, viewed from the front. [Figure 8] This is a schematic diagram showing a massage machine according to one embodiment of the present invention, viewed from the side. [Figure 9] This is a schematic diagram showing a massage machine according to one embodiment of the present invention moving from another direction. [Figure 10]This is a schematic diagram showing a massage machine according to another embodiment of the present invention. [Figure 11] This is a schematic diagram showing the actual usage state of the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Figure 12] This is a schematic diagram showing the installation of a protective cover on the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Figure 13] This is a magnified view of the part where a protective cover is installed in the close-contact transmission mechanism of a massage chair according to one embodiment of the present invention. [Modes for carrying out the invention]

[0012] The present invention will be described below through embodiments of the invention, but these embodiments are not intended to limit the invention as defined in the claims. Furthermore, not all combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0013] First, observing Figures 1 to 4, the close-contact transmission mechanism of the massage chair according to the present invention comprises a massage chair seat (10) and a massage machine (20). The massage chair seat (10) has a chair frame (11), and first ropes (12) are installed on the left and right sides of the front of the chair frame (11), and second ropes (13) are installed on the left and right sides of the rear of the chair frame (10). The first ropes (12) and second ropes (13) are wire ropes.

[0014] Before and after the massage machine (20), a first shaft (21) and a second shaft (22) are respectively pivotally installed. On the left and right sides of the first shaft (21), first rotating wheels (211) are respectively installed. On the first rotating wheels (211), first screw portions (212) are provided, and the first rope (12) is wound around the first screw portions (212). On the left and right sides of the second shaft (22), second rotating wheels (221) are respectively installed. On the second rotating wheels (221), second screw portions (222) are provided, and the second rope (13) is wound around the second screw portions (222). In the massage machine (20), a motor (23) for rotating the first shaft (21) or the second shaft (22) is installed. When observed from FIGS. 5 and 6, the transmission wheel (24) meshes with the first rotating wheel (211) and the second rotating wheel (221), so that both the first rotating wheel (211) and the second rotating wheel (221) rotate in the same direction. When observed from FIGS. 7 to 9, when the first rotating wheel (211) winds up the first rope (12), the second rotating wheel (221) releases the second rope (13), or when the first rotating wheel (211) releases the first rope (12), the second rotating wheel (221) winds up the second rope (13), so that the massage machine (20) reciprocates back and forth along the inside of the chair frame (11). On the surface of the massage machine (20), a massage member (25) for massaging the user sitting on the massage chair seat (10) is installed.

[0015] Observing from Fig. 6 to Fig. 8, due to the above-mentioned structure, the transmission wheel (24) drives the first rotating wheel (211) and the second rotating wheel (221), and the first screw portion (212) and the second screw portion (222) can wind up and release the first rope (12) and the second rope (13), enabling the massager (20) to reciprocate so as to achieve a massage effect. Also, the first rope (12) and the second rope (13) further adhere the massager (20) to the human body by tension, making the width and force of the massage consistent and more comfortable. Note that since the first rope (12) and the second rope (13) are made of wire ropes, they have higher safety, are difficult to break, are more solid, and have high durability.

[0016] The massager (20) reciprocates back and forth along the inside of the chair frame (11) and may have different massage ranges based on the length and angle of the chair frame (11). The length of the chair frame (11) may be such that the massager (20) can massage from the user's back to the buttocks and even to the calves. The massage member (25) is supported by the tension of the first rope (12) and the second rope (13), can adhere to the body shapes of various users, and does not cause pain or discomfort.

[0017] And the first shaft (21) and the second shaft (22) balance the two sides of the front and back of the massager (20), prevent the massager (20) from swaying and make the movement more stable, and can greatly expand the range of the movement distance of the massager (20).

[0018] Observing from Fig. 2 and Fig. 3, in the close transmission mechanism of the massage chair according to the present invention, the transmission wheel (24), the first rotating wheel (211), the second rotating wheel (221), and their meshing parts are located on the left side of the massager (20).

[0019] Figure 10 shows another embodiment of the massage machine (20), in which the close-contact transmission mechanism of the massage chair according to the present invention has the transmission wheel (24), the first rotating wheel (211), the second rotating wheel (221), and the parts that engage with them located on the right side of the massage machine (20).

[0020] As can be seen from Figure 11, in the close-contact transmission mechanism of the massage chair according to the present invention, the massage chair seat (10) and the massage machine (20) are installed inside the massage chair (30).

[0021] In the close-contact transmission mechanism of the massage chair according to the present invention, the massage chair seat (10) and the massage machine (20) are installed inside a massage bed (not shown).

[0022] Observing from Figures 12 and 13, the close-contact transmission mechanism of the massage chair according to the present invention has protective covers (26), such as sleeves, installed on the outer housings of the first screw portion (212) and the second screw portion (222) to shield the first screw portion (212) and the second screw portion (222). Position limit grooves (261) are drilled on the side surface of the protective cover (26) to restrict the position of the first rope (12) or the second rope (13) by allowing them to pass through, and ensuring that the first rope (12) and the second rope (13) can be reliably wound up and released along the first screw portion (212) and the second screw portion (222).

[0023] The present invention is not limited to the embodiments described above, and can be implemented in various forms without departing from the spirit of the invention. [Explanation of Symbols]

[0024] 10 Massage Chair Seats 11 Chair Frame 12. First Rope 13. Second rope 20 Massage machines 21. First shaft 211 First Rotating Wheel 212 First Screw Section 22. Second shaft 221 Second Rotating Wheel 222 Second Screw Section 23 Motor 24 transmission wheels 25 Massage components 26 Protective Covers 261 Position limit groove 30 Massage Chairs

Claims

1. A close-contact transmission mechanism for a massage chair equipped with a massage chair seat and a massage machine, The massage chair seat has a chair frame, and first ropes are installed on the left and right sides of the front of the chair frame, and second ropes are installed on the left and right sides of the rear of the chair frame, and the first and second ropes are wire ropes. A first shaft and a second shaft are pivotally mounted at the front and rear of the massage machine, respectively, and a first rotating wheel is installed on the left and right sides of the first shaft, with a first screw portion provided on the first rotating wheel. The first rope is wrapped around the first screw portion, Second rotating wheels are installed on the left and right sides of the second shaft, and a second screw portion is provided on the second rotating wheel. The second rope is wrapped around the second screw portion, The massage machine is equipped with a motor for rotating the first shaft or the second shaft, and a drive wheel engages with the first and second rotating wheels so that both the first and second rotating wheels rotate in the same direction. When the first rotating wheel winds up the first rope, the second rotating wheel releases the second rope, or when the first rotating wheel releases the first rope, the second rotating wheel winds up the second rope, causing the massage machine to reciprocate back and forth along the inside of the chair frame. A close-contact transmission mechanism for a massage chair, characterized in that a massage component for providing a massage to a user sitting in the massage chair seat is installed on the surface of the massage machine.

2. The close-contact transmission mechanism for a massage chair according to claim 1, characterized in that the transmission wheel, the first rotating wheel, the second rotating wheel, and the portion that engages with them are located on the left side of the massage machine.

3. The close-contact transmission mechanism for a massage chair according to claim 1, characterized in that the transmission wheel, the first rotating wheel, the second rotating wheel, and the portion that engages with them are located on the right side of the massage machine.

4. The close-contact transmission mechanism for a massage chair according to claim 1, characterized in that the massage chair seat and the massage machine are installed inside the massage chair.

5. The close-contact transmission mechanism for a massage chair according to claim 1, characterized in that the massage chair seat and the massage machine are installed inside a massage bed.

6. The close-contact transmission mechanism for a massage chair according to claim 1, characterized in that the first screw portion and the second screw portion are each shielded by a protective cover, the protective cover has a position limit groove, and the positions of the first rope and the second rope are each limited.

Citation Information

Patent Citations

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