A massage chair

Abstract

The present invention discloses a massage chair, comprising a body, a massage mechanism, an isolation cover, and a sensor. The sensor generates a first change signal when the massage mechanism moves from bottom to top and swings from back to front by a first set amplitude, and generates a second change signal when the massage mechanism moves from top to bottom and swings from front to back by a second set amplitude. The massage chair is configured to: first control the massage mechanism to move from bottom to top, and after the sensor generates the first change signal, control the massage mechanism to move in the left and right directions, so as to reduce the resistance of the massage mechanism to the forward swing by loosening the isolation cover; then control the massage mechanism to move from top to bottom, and determine the user's shoulder position based on the position of the massage mechanism in the up and down directions when the second change signal is generated. The massage chair of the present application uses the massage mechanism to move in the left and right directions to loosen the isolation cover, thereby reducing the resistance of the massage mechanism to the forward swing. Compared with the existing technology, this helps to improve the accuracy of shoulder position detection.

Description

Technical Field

[0001] The present invention relates to massage equipment technology, in particular to a massage chair. Background Art

[0002] Massage chairs are a common type of massage equipment. To accommodate the needs of users of varying body types and precisely target acupuncture points, they typically detect the user's shoulder position after they are seated. For example, the massager disclosed in patent application CN1162138C describes a conventional shoulder detection method in its background technology. This method detects shoulder position by lowering a treatment element. However, due to the user's unstable seating position, this method cannot accurately detect shoulder position (see pages 2-3 of the specification of patent application CN1162138C for details). In order to solve the above problems, patent application CN1162138C provides a more accurate detection solution, which first obtains the first detection value of the shoulder position by lowering the massage mechanism, and then obtains the second detection value of the shoulder position by raising the massage mechanism. When the first and second detection values ​​meet the set conditions, the shoulder position is determined by the second detection value (see the description on pages 38 to 42 of patent application CN1162138C for details). In a modified embodiment, only the second detection value can be detected (see the description on lines 7 to 8 on page 50 of patent application CN1162138C for details). The core point of the technical solution of patent application CN1162138C is to obtain the second detection value of the shoulder position by raising the massage mechanism. The second detection value can more accurately reflect the user's shoulder position. The aforementioned first and second detection values ​​are determined by means of the signal changes of the shaking sensor during the lowering and rising process of the massage mechanism.

[0003] Combine Figure 1 Existing massage chairs usually include a body 1 and an isolation cover 2. A massage movement is set in the body 1. The massage mechanism of the massage movement massages the user through the isolation cover 2. The isolation cover 2 is usually made of leather and has a certain hardness. The detection method based on patent application CN1162138C detects the shoulder position, which will produce errors due to the presence of the isolation cover 2. Specifically, when the massage mechanism reaches the user's shoulder position, the massage mechanism is hindered by the isolation cover 2, and the amplitude of the forward swing is not enough to trigger the detection sensor. When the amplitude of the forward swing of the massage mechanism is enough to trigger the detection sensor, the position of the massage mechanism is already higher than the user's shoulder position. In view of this, this application is specially proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a massage chair that can more accurately detect the user's shoulder position.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: A massage chair, comprising: a body; a massage mechanism, which can move in the up and down, front and back, and left and right directions relative to the body; an isolation cover, which is installed on the body and located on the front side of the massage mechanism to support the user's back; a sensor, which generates a first change signal when the massage mechanism moves from bottom to top and swings from back to front by a first set amplitude, and generates a second change signal when the massage mechanism moves from top to bottom and swings from front to back by a second set amplitude; the massage chair is configured to: first control the massage mechanism to move from bottom to top, and after the sensor generates the first change signal, control the massage mechanism to move in the left and right directions to reduce the resistance of the massage mechanism to the forward swing by loosening the isolation cover; then control the massage mechanism to move from top to bottom, and determine the user's shoulder position based on the position of the massage mechanism in the up and down directions when the second change signal is generated.

[0006] Preferably, the massage chair is configured to: after the sensor generates the first change signal, first control the massage mechanism to stop moving from bottom to top, and then control the massage mechanism to move in the left and right directions.

[0007] Preferably, the massage chair is configured to: after the sensor generates the first change signal, control the massage mechanism to move in the left and right directions while controlling the massage mechanism to continue moving from bottom to top for a preset distance.

[0008] Preferably, the preset distance is 1 cm to 3 cm.

[0009] Preferably, the massage mechanism moves in the left and right directions in a yaw motion.

[0010] Preferably, the massage chair is configured to: after controlling the massage mechanism to perform a set number of yaw movements, control the massage mechanism to move from top to bottom; the set number of times is 1 to 3 times.

[0011] Preferably, the massage mechanism includes: a V-shaped massage arm, an upper massage piece and a lower massage piece, the middle part of the massage arm is configured to rotate around a set axis, and the upper massage piece and the lower massage piece are respectively arranged at the upper and lower ends of the massage arm; the sensor is configured to be triggered by the massage arm to generate a change signal.

[0012] Preferably, the sensor is a photoelectric sensor or a limit switch.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: the massage chair of the present application uses the massage mechanism to move in the left and right directions to loosen the isolation cover, thereby reducing the resistance of the massage mechanism to the forward swing, which helps to improve the accuracy of shoulder position detection compared with the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0015] Figure 1 A schematic diagram of a massage chair according to an embodiment is depicted;

[0016] Figure 2 A schematic diagram of a massage chair in an initial state according to an embodiment is depicted;

[0017] Figure 3 A schematic diagram of a massage chair according to an embodiment is shown, in which the massage mechanism moves from bottom to top and swings from back to front through a first set amplitude;

[0018] Figure 4 A schematic diagram of a massage chair according to an embodiment is shown, in which a massage mechanism moves from top to bottom and swings from front to back within a second set amplitude. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0020] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0021] Combine Figure 1 and Figure 2 In one embodiment, the massage chair of the present application includes a body 1, an isolation cover 2 and a massage movement 3. The body 1 includes a backrest, a seat, an armrest and a lower limb massage part. The backrest is provided with an opening (not shown) for the massage mechanism of the massage movement 3 to pass through. The isolation cover 2 is mounted on the body 1 and is located in front of the massage mechanism of the massage movement to support the user's back. The isolation cover 2 is usually made of leather. Its upper side is usually fixed to the body 1 and can be flipped to the back side of the backrest with the upper side as the fixed point. The massage movement 3 includes a movement frame 3A, a V-shaped massage arm, an upper massage part 3B, a lower massage part 3C and a sensor 3D. The middle part of the massage arm is configured to swing back and forth around a set axis 3E (the massage arm is pulled by a spring to maintain a tendency to move forward, which can be combined with the patent application CN00801803.0 Figure 1For your understanding, no further details are given), the upper massage piece 3B and the lower massage piece 3C are respectively arranged at the upper and lower ends of the massage arm. The V-shaped massage arm, the upper massage piece 3B and the lower massage piece 3C constitute the massage mechanism of the massage movement. The massage movement usually also includes a walking drive mechanism, a strong and weak drive mechanism and a width drive mechanism, so that the massage mechanism can move in the up and down, front and back and left and right directions relative to the body 1. The sensor 3D is, for example, a photoelectric sensor or a limit switch. In the electrical signal, 0 and 1 usually correspond to different states of the sensor 3D. The upper massage piece 3B of the massage mechanism moves up and down along the user's back, and swings back and forth guided by the curve of the back, combined with Figures 2 to 3 , the sensor 3D generates a first change signal when the massage mechanism moves from bottom to top and swings from back to front to a first set amplitude (in this embodiment, the sensor 3D is triggered by the massage mechanism and the signal value changes from 0 to 1), and in combination Figures 3 and 4 Sensor 3D generates a second change signal when the massage mechanism moves from top to bottom and swings from front to back by a second set amplitude (in this embodiment, sensor 3D is triggered by the massage mechanism and the signal value changes from 1 to 0). The specific structure of massage movement 3 can be, for example, the structure disclosed in patent application CN00801803.0, and will not be repeated here.

[0022] The following will be combined Figures 2 to 4 , detailing the specific steps for shoulder detection of the massage chair of this application.

[0023] Combine Figure 2 In the initial state, the massage mechanism of the massage movement is at the lower side of the user's shoulder position P. At this time, the sensor 3D is not triggered and the signal value is 0. Figure 3 The massage chair first controls the massage mechanism to move from bottom to top. Due to the obstruction of the isolation cover 2 (when the user leans on the isolation cover 2, the isolation cover 2 is in a taut state), the swing amplitude of the massage mechanism from back to front does not reach the first set amplitude when the massage mechanism passes the user's shoulder position P. When the massage mechanism swings from back to front to the first set amplitude, triggering sensor 3D to generate a first change signal, the position of the massage mechanism in the vertical direction is already higher than the user's shoulder position P (the position of the massage mechanism at this time can be defined as the first shoulder position value). The lower side wall of the massage arm of the massage mechanism triggers sensor 3D, causing the sensor 3D signal value to become 1. The first shoulder position value is the second detection value mentioned in patent application CN1162138C. As mentioned above, the position corresponding to this detection value is slightly higher than the user's shoulder position P.

[0024] After the massage mechanism trigger sensor 3D generates a first change signal, the massage chair can first control the massage mechanism to stop its upward movement and then control the massage mechanism to move in the left-right direction (the left-right movement of the massage mechanism can be achieved through yaw motion, which is achieved through an eccentric structure and is a common driving method, and will not be described in detail here). When the massage mechanism moves in the left-right direction, it pulls on the isolation cover 2, loosening the isolation cover 2, thereby reducing the resistance to the massage mechanism's forward swing. In another embodiment, after the massage mechanism trigger sensor 3D generates a first change signal, the massage chair can control the massage mechanism to continue moving in the left-right direction by a preset distance (e.g., 1 cm to 3 cm) from the bottom up, while controlling the massage mechanism to move in the left-right direction, to increase the area of ​​the isolation cover pulled.

[0025] Further integration Figure 3 and Figure 4 After the massage mechanism is controlled to perform a set number of swing activities (the set number of times can be 1 to 3 times, for example, 1 time), the isolation cover 2 is relaxed, and the massage chair further controls the massage mechanism to move from top to bottom, such as Figure 4 When the massage mechanism swings from front to back by the second set amplitude, the massage mechanism reaches the user's shoulder position P. At this time, the sensor 3D is triggered to generate a second change signal (the signal value changes from 1 to 0). The massage chair determines the user's shoulder position based on the vertical position of the massage mechanism when the second change signal is generated (the position of the massage mechanism at this time can be defined as the second shoulder position value).

[0026] The above is the first embodiment of the present application. It should be understood that the present application may also have other variations. For example, the position of sensor 3D may be adjusted so that the upper arm portion of the V-shaped massage arm triggers sensor 3D, causing the first change signal to change from 1 to 0 and the second change signal to change from 0 to 1. It should also be understood that the shape of the massage arm is not limited to a V-shape and may also be adjusted to a strip shape with only one massage element, which is pulled by a tension spring to maintain a forward swinging tendency.

[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A massage chair comprising: Body (1); The massage mechanism can move relative to the body (1) in up and down, front and back, and left and right directions; An isolation cover (2) is mounted on the body (1) and located on the front side of the massage mechanism to support the user's back; a sensor (3D) that generates a first change signal when the massage mechanism moves from bottom to top and swings from back to front by a first set amplitude, and generates a second change signal when the massage mechanism moves from top to bottom and swings from front to back by a second set amplitude; It is characterized in that The massage chair is configured to: The massage mechanism is first controlled to move from bottom to top, and after the sensor (3D) generates the first change signal, the massage mechanism is controlled to move in the left and right directions, so as to reduce the resistance of the massage mechanism to the forward swing by loosening the isolation cover (2): The massage mechanism is then controlled to move from top to bottom, and the position of the user's shoulder is determined based on the position of the massage mechanism in the up and down directions when the second change signal is generated.

2. The massage chair according to claim 1, wherein: The massage chair is configured to: after the sensor (3D) generates the first change signal, first control the massage mechanism to stop moving from bottom to top, and then control the massage mechanism to move in the left and right directions.

3. The massage chair according to claim 1, wherein: The massage chair is configured to: after the sensor (3D) generates the first change signal, control the massage mechanism to move in the left and right directions, and control the massage mechanism to continue to move from bottom to top for a preset distance.

4. The massage chair according to claim 3, wherein: The preset distance is 1 cm to 3 cm.

5. The massage chair according to claim 1, wherein: The massage mechanism moves in the left and right directions in the form of a yaw motion.

6. The massage chair according to claim 2, wherein: The massage chair is configured to: after controlling the massage mechanism to perform a set number of yaw movements, control the massage mechanism to move from top to bottom; the set number of times is 1 to 3 times.

7. The massage chair according to claim 1, wherein: The massage mechanism comprises: a V-shaped massage arm, an upper massage piece (3B) and a lower massage piece (3C); the middle portion of the massage arm is configured to rotate around a set axis; the upper massage piece (3B) and the lower massage piece (3C) are respectively arranged at the upper and lower ends of the massage arm; and the sensor (3D) is configured to be triggered by the massage arm to generate a change signal.

8. The massage chair according to claim 5, wherein: The sensor (3D) is a photoelectric sensor or a limit switch.

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