Massage chair with shoulder sensing and foreign matter rolling-in prevention functions
By using flexible fabric sensors on the massage chair to sense pressure in the shoulder blade area and control the position of the massage mechanism, the problem of traditional massage chairs being unable to adapt to different heights and body types is solved, achieving precise massage and safety protection, and improving user experience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOZHONGHAO HEALTH PROD
- Filing Date
- 2025-03-13
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional massage chairs cannot adapt to different heights and body types when massaging the shoulder blade area, and there is a risk of foreign objects getting caught in the backrest cushion after it wears down, which poses a safety hazard.
A flexible fabric sensor is used as the sensing cloth to sense pressure in the shoulder blade area and control the position of the massage mechanism. Combined with electrical signals, it can identify cracks and cut off the power supply to prevent foreign objects from being drawn in.
This technology enables massage chairs to accurately adapt to different heights and body types, while also providing safety protection, thus avoiding risks of user injury and motor overload, and improving massage comfort and safety.
Smart Images

Figure CN224207032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of massage instruments, specifically to a massage chair with shoulder blade sensing and anti-foreign object entrapment functions. Background Technology
[0002] Traditional massage chairs typically consist of a chair frame and guide rails mounted on the frame. Massage mechanisms run along these guide rails. To prevent direct contact between the massage mechanisms and the human body, a backrest pad is placed in front of the massage mechanism's movement path. The massage mechanism applies massage to the body through the backrest pad. During operation, the massage mechanism scrapes and abrades against the inside of the backrest pad, which is why the backrest pad is usually made of a wear-resistant material.
[0003] Traditional massage chairs achieve targeted massage of the shoulder blade area (including the deltoid and trapezius muscles) by controlling the massage motor to move to a specific position. This position is usually fixed and does not adjust automatically according to the user's height and body type. While some massage chairs allow users to customize the position of the massage motor, this is somewhat inconvenient. Furthermore, the constant friction between the inner side of the backrest cushion and the massage motor can easily cause damage. If the massage motor is still operating when the backrest cushion is damaged, objects such as hair or scarves could be caught in the tear and become trapped, potentially causing injury to the user or overloading and damaging the motor, posing a safety hazard.
[0004] Flexible fabric sensors (also known as sensing fabrics) are smart textiles that integrate sensing materials or elements. They can convert external stimuli such as pressure and tension into electrical signals, and possess soft, body-hugging properties as well as flexible and versatile structures. These sensors are mainly fabricated through coating, weaving, or encapsulation, and are widely used in fields such as medical and health monitoring, motion detection, and smart protection. Due to their excellent flexibility and wearability, they also have great potential in the field of massage devices. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a massage chair with shoulder blade sensing and anti-foreign object entrapment functions, which can accurately sense and identify the user's shoulder blade area and improve the fit of the shoulder blade area for people of different heights and body types.
[0006] This utility model discloses a massage chair with shoulder blade sensing and anti-foreign object entanglement functions, including a chair frame and a massage mechanism mounted on the chair frame. A backrest cushion covers the front side of the chair frame corresponding to the massage mechanism. The backrest cushion includes a wear-resistant cloth on the inner side that contacts the massage head of the massage mechanism, and a sensing cloth on the outer side that contacts the user and can sense pressure on the user's shoulder blade area. The sensing cloth uses a flexible fabric sensor. The sensing cloth and the movement control mechanism of the massage mechanism are linked and cooperate. The sensing cloth is located on the upper part of the backrest cushion, at least covering the user's shoulder blade area. When the user's shoulder blade area presses against the sensing cloth, the local pressure on the sensing cloth generates a corresponding electrical signal. By recognizing this electrical signal, the massage mechanism can be linked to move to the position corresponding to the user's shoulder blade area, thereby achieving precise massage of the user's shoulder blade area and adapting to users of different heights and body types.
[0007] The power supply mechanism of the sensing cloth and the massage mechanism works in conjunction. By working together with the power supply mechanism, the power supply to the massage mechanism can be cut off when an abnormal electrical signal is detected in the sensing cloth, thus stopping the massage operation. Since the sensor is located on the outer side of the wear-resistant cloth (located on the outer layer of the backrest cushion), when the wear-resistant cloth is torn by the mechanical arm and damaged, the resistance will suddenly increase, thus generating an abnormal electrical signal. By identifying the abnormal signal, it can be determined whether the sensing cloth is torn. When a tear is detected, the power supply can be cut off in time. This effectively prevents objects such as hair and scarves from being caught in the massage mechanism through the tear in the backrest cushion, avoiding risks such as injury, disability, and motor overload.
[0008] Furthermore, the upper part of the backrest cushion is provided with a headrest portion, the upper end of the sensing cloth is positioned close to the lower end of the headrest portion, the lower end of the sensing cloth is positioned corresponding to the user's waist, and the two side edges of the sensing cloth are positioned close to the two side edges of the backrest cushion. The sensing cloth has a wide coverage area, which can improve the adaptability to users of different heights and body types.
[0009] Furthermore, the front side of the sensing cloth includes two concave areas and other convex areas. The convex areas surround the concave areas, and the two concave areas are symmetrically arranged with respect to the vertical center line of the sensing cloth. The two concave areas correspond to the user's shoulder blade area, making the user more comfortable and ergonomic when lying on the massage chair. This body-fitting structural design also makes the pressure on the sensing cloth more even and improves the sensing effect.
[0010] Furthermore, the convex and concave areas are smoothly connected by an arc surface, improving comfort when lying down.
[0011] Furthermore, the backrest cushion includes a filling material, which is disposed at a position corresponding to the convex area of the sensing cloth and located between the sensing cloth and the wear-resistant cloth. The filling material can improve the support effect on the convex area and also improve the elasticity of the convex area when it is under pressure. The filling material can also keep the thickness of the sensing cloth uniform, reduce its processing difficulty, and ensure its pressure sensing effect.
[0012] Furthermore, the filler is made of silicone.
[0013] Furthermore, the sensing cloth and the massage mechanism of the massage core work together in conjunction. This coordination with the massage mechanism enables more targeted massage movements based on the scapular region. Attached Figure Description
[0014] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0015] Figure 2 This is a front view of an embodiment of the present utility model;
[0016] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;
[0017] Figure 4 This is a schematic diagram illustrating the interaction between the massage mechanism and the backrest cushion in an embodiment of this utility model.
[0018] Figure 5 This is a cross-sectional view of the backrest cushion according to an embodiment of the present utility model. Detailed Implementation
[0019] The structure of a massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to an embodiment of this utility model is as follows: Figure 1-5As shown, the device includes a chair frame 1 and a massage mechanism 2 mounted on the chair frame 1. A backrest cushion 3 covers the front side of the chair frame 1 corresponding to the massage mechanism 2. The backrest cushion 3 includes a wear-resistant cloth 31 located on the inner side and in contact with the massage heads 21 of the massage mechanism 2, and a sensing cloth 32 located on the outer side and in contact with the user, capable of sensing pressure on the user's shoulder blades. The sensing cloth 32 uses a flexible fabric sensor, which is a relatively mature technology. The sensing cloth 32 and the movement control mechanism of the massage mechanism 2 work together in conjunction. The sensing cloth 32 is located on the upper part of the backrest cushion 3, covering at least the user's scapular area. The user's scapular area includes the deltoid and trapezius muscles. When the user's scapular area is pressed against the sensing cloth 32, the sensing cloth 32 will generate a corresponding electrical signal when it is locally pressed. By recognizing the electrical signal, the massage mechanism can be linked to control the massage mechanism to move to the position corresponding to the user's scapular area, thereby achieving precise massage of the user's scapular area and adapting to users of different heights and body types.
[0020] The upper part of the backrest cushion 3 is provided with a headrest portion 33. The upper end of the sensing cloth 32 is located close to the lower end of the headrest portion 33, and the lower end of the sensing cloth 32 is located at a position corresponding to the user's waist. The two side edges of the sensing cloth 32 are located close to the two side edges of the backrest cushion 3. The sensing cloth 32 has a wide coverage area, which can improve the coverage effect for users of different heights and body types.
[0021] The softness of the sensing cloth 32 material, combined with its conforming design to the human back, enhances the comfort of the massage chair, making users feel more relaxed and enjoyable during the massage.
[0022] The front side of the sensing cloth 32 includes two concave areas 321 and other convex areas 322. The convex areas 322 surround the concave areas 321, and the convex areas 322 and concave areas 321 are smoothly connected by an arc surface to improve comfort when lying down. The two concave areas 321 are symmetrically arranged with respect to the vertical center line of the sensing cloth 32. The two concave areas 321 correspond to the two shoulder blades of the user, making the user fit more snugly when lying on the massage chair, which is ergonomic. This body-fitting structural design also makes the pressure on the sensing cloth 32 more even and improves the pressure sensing effect.
[0023] The backrest cushion 3 includes a filling material 34, which is disposed at a position corresponding to the protruding area 322 of the sensing cloth 32 and located between the sensing cloth 32 and the wear-resistant cloth 31. The filling material 34 can improve the support effect on the protruding area 322 and also improve the elasticity of the protruding area 322 when it is compressed. The filling material 34 can also keep the thickness of the sensing cloth 32 uniform, reduce its processing difficulty, and ensure its pressure sensing effect. The filling material 34 is made of silicone.
[0024] The sensing cloth 32 and the power supply mechanism of the massage core 2 work together in a coordinated manner. By working together with the power supply mechanism, the power supply to the massage core 2 can be cut off in time when an abnormal electrical signal is detected, thus stopping the massage operation. Since the sensing cloth 32 is located on the outside of the wear-resistant cloth 31 (located on the outer layer of the backrest cushion 3), when the sensing cloth 32 is broken, the resistance will suddenly increase, thereby generating an abnormal electrical signal. By identifying the abnormal signal, it can be determined whether the sensing cloth 32 is broken. When the sensing cloth 32 is identified as broken, the power supply can be cut off in time. This can effectively prevent objects such as hair and scarves from being caught in the massage core 2 through the tear in the backrest cushion 3, thus avoiding the risks of injury, disability, and motor overload.
[0025] The sensing cloth 32 and the massage mechanism of the massage core 2 work together in conjunction. The sensing cloth 32 can sense the pressure distribution in different areas of the user's back in real time. By working in conjunction with the massage mechanism of the massage core 2, it can perform more targeted massage movements based on the scapular region. It can perform targeted massage on more specific locations in the user's scapular region. For example, the massage core 2 can autonomously adjust the massage intensity and massage technique according to the pressure. With the recognition of acupoints, it helps the massage chair to more accurately locate and massage key acupoints on the user's back, improve the massage effect, and achieve the purpose of traditional Chinese medicine physiotherapy and conditioning. In particular, it can better adapt to different users' heights and body types.
[0026] In addition to sensing the pressure when the human body presses against it, the sensing cloth 32 can also sense the massage force of the massage mechanism 2 when it is pressed against it. It can work with the massage mechanism of the massage mechanism 2 to accurately control the massage force, which helps to reduce the noise and vibration generated by the massage chair during the massage process and create a quieter massage environment for the user.
[0027] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.
Claims
1. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions, comprising a chair frame, a massage mechanism mounted on the chair frame, and a backrest cushion covering the front side of the chair frame corresponding to the massage mechanism, characterized in that: The backrest cushion includes an inner layer of abrasion-resistant fabric that contacts the massage head of the massage mechanism, and an outer layer of a sensor fabric that contacts the user and can sense pressure on the user's shoulder blades. The sensor fabric uses a flexible fabric sensor. The sensor fabric and the travel control mechanism of the massage mechanism work together. The sensor fabric is located on the upper part of the backrest cushion and at least covers the user's shoulder blade area. The sensor fabric and the power supply mechanism of the massage mechanism work together to cut off the power supply to the massage mechanism when the abrasion-resistant fabric tears and damages the sensor fabric.
2. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 1, characterized in that: The upper part of the backrest cushion is provided with a headrest portion. The upper end of the sensing cloth is located close to the lower end of the headrest portion, the lower end of the sensing cloth is located at a position corresponding to the user's waist, and the two side edges of the sensing cloth are located close to the two side edges of the backrest cushion.
3. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 1 or 2, characterized in that: The front side of the sensing cloth includes two concave areas and other convex areas. The convex areas surround the concave areas, and the two concave areas are symmetrically arranged with respect to the vertical center line of the sensing cloth.
4. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 3, characterized in that: The convex and concave areas are smoothly connected by an arc surface.
5. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 3, characterized in that: The backrest cushion includes a filling material disposed at a position corresponding to the convex area of the sensing fabric and located between the sensing fabric and the abrasion-resistant fabric, for supporting the convex area.
6. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 5, characterized in that: The filler is made of silicone.
7. A massage chair with shoulder blade sensing and anti-foreign object entrapment functions according to claim 1, characterized in that: The sensing cloth and the massage mechanism of the massage core work together in conjunction.