Chair-type massager
By installing a clamping detection mechanism between the armrests and the seat of the chair-type massager, the problem of clamping between the armrests and the ground is solved, and safety protection is achieved when the chair is tilted to release the pressure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DAITO ELECTRIC MACHINE INDUSTRY COMPANY LIMITED
- Filing Date
- 2022-04-18
- Publication Date
- 2026-08-04
AI Technical Summary
Existing chair-type massagers are prone to trapping obstacles between the armrests and the ground, causing damage to both the obstacles and the machine itself. Current technology has not been able to effectively solve this problem.
A clamping detection mechanism is installed between the armrests and the seat of the chair-type massager. When clamping is detected by a detection switch and control components, the tilting action is stopped to prevent the armrests from getting stuck between the armrests and the ground.
It effectively prevents the handrail from getting caught between itself and the ground when it is tilted and released, protecting obstacles and machinery and avoiding unnecessary damage.
Smart Images
Figure CN116456949B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a chair-type massager, and more particularly to a safety mechanism provided in a chair-type massager. Background Technology
[0002] For example, Patent Document 1 discloses a chair-type massager with the following structure: a push-out member is provided at a position below and on the side closer to the base of the treatment member, so that when the treatment mechanism descends undesirably in a strong state (the treatment arm is raised approximately vertically from the treatment mechanism), the push-out member pushes out the user's shoulder. This chair-type massager is designed to prevent the treatment member from trapping the user in a mechanical manner.
[0003] Patent Document 1: Japanese Patent Publication No. 2009-56019.
[0004] As mentioned above, Patent Document 1 discloses a technique for preventing the treatment device from being trapped in the user through a mechanism. However, various undesirable situations arising in chair-type massagers are not limited to the user. For example, many chair-type massagers have reclining backrests to provide a comfortable massage. Furthermore, a chair-type massager has been developed in which the backrest and seat are integrated and reclined, allowing it to recline or rise like a cradle.
[0005] like Figure 2A , Figure 2B As shown, when the seat and backrest are integrated and tilted, the armrests located on the sides of the seat also move backward and rise. When the tilt is released, the armrests move forward and lower downward. When the armrests move forward and downward, as... Figure 2B As shown, if there is an object (obstacle) below the armrest, the obstacle will be trapped. This trapping will affect the obstacle itself and also damage the chair-type massager.
[0006] There has long been a need in chair-type massagers to detect and prevent obstacles (objects other than the user) from getting caught between the armrests located on the side and the ground. However, in reality, no technology has been developed to address this need, and the technology in Patent Document 1 does not solve this undesirable situation. Summary of the Invention
[0007] Therefore, the object of the present invention is to provide a chair-type massager that is configured to tilt and has a safety mechanism to prevent the armrests from getting stuck on the ground when the tilt is released.
[0008] To achieve the aforementioned objectives, the present invention adopts the following technical solution.
[0009] The massager of the present invention has a seat, an armrest provided on the side of the seat, a backrest provided at the rear of the seat, and a massage mechanism provided in at least one of the seat, armrest and backrest. The armrest provided in the seat is configured to move from below to above when tilted and from above to below when tilted. The massager of the present invention is characterized by having a clamping detection mechanism, which detects the occurrence of clamping between the armrest and the ground when tilted.
[0010] Preferably, the aforementioned clamping detection mechanism may also be configured to detect the lifting of the aforementioned handrail when clamping occurs between the aforementioned handrail and the ground, and detect that the aforementioned clamping has occurred based on its detection result.
[0011] Preferably, the aforementioned clamping detection mechanism may include a detection switch disposed on the aforementioned seat or armrest, and a detection device disposed on the aforementioned armrest or seat and operating the aforementioned detection switch.
[0012] Preferably, a control unit may also be provided, which controls the tilting state of the seat and backrest. When the clamping detection mechanism detects the clamping state, the control unit controls the tilting action and the accompanying actions to stop.
[0013] Preferably, a control unit may also be provided, which controls the tilting state of the seat and backrest. When the clamping detection mechanism detects the clamping state, the control unit performs control that allows only a predetermined amount of tilting movement and accompanying movements, and stops after only the predetermined amount of movement has been performed.
[0014] [Invention Effects]
[0015] According to the technology of the present invention, in a chair-type massager that can tilt, it is possible to reliably prevent the armrests from getting stuck on the ground when the tilt is released. Attached Figure Description
[0016] Figure 1 This is a front perspective view of a chair-type massager equipped with the safety mechanism of the present invention.
[0017] Figure 2A This is a diagram showing the operation of the safety mechanism of the present invention, showing the tilted state of the chair-type massager.
[0018] Figure 2B This diagram shows the operation of the safety mechanism of the present invention, showing the chair-type massager transitioning from a tilted state to a tilt-off state.
[0019] Figure 3 It is a frontal 3D view showing only the seat and armrests of the chair-type massager.
[0020] Figure 4 It is a frontal perspective view showing the armrests detached from the seat of the chair-type massager.
[0021] Figure 5 This is a front perspective view showing the armrests detached from the seat of the chair-type massager (the top plate that makes up the seat is omitted).
[0022] Figure 6 This is a 3D side view of the seat of a chair-type massager (the left armrest is omitted).
[0023] Figure 7 It is an exploded 3D view of the clamping testing mechanism.
[0024] Figure 8 It is an exploded 3D view of the clamping testing mechanism. Detailed Implementation
[0025] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, as an example of a massage machine, a chair-type massage machine 1 is illustrated.
[0026] Figure 1 The chair-type massager 1 shown has a seat 2 that supports the user's buttocks from below, a backrest 3 provided at the rear of the seat 2, and armrests 7 provided on the sides of the seat 2. The massager 1 of this embodiment also has a footrest 4 provided at the front of the seat 2.
[0027] like Figure 1 , Figure 2A , Figure 2B , Figure 3 As shown, at the lower part of the seat 2, there is a foot 5 for positioning the massager 1 toward the ground F, and the seat 2 is supported at a predetermined height by means of the foot 5.
[0028] The lower end of the backrest 3 is mounted relative to the rear of the seat 2 or the rear of the footrest 5. Therefore, the chair-type massager 1 of this embodiment is configured such that the seat 2 and the backrest 3 are integrated and tilted, and tilted like a cradle. The tilting of the seat 2 and the backrest 3 is achieved by means of a posture-changing mechanism such as a linear actuator mechanism provided in the footrest 5.
[0029] In addition, the back massage mechanism (not shown) that performs massage actions such as kneading, tapping or vibrating inside the backrest 3 is designed to move freely up and down.
[0030] In addition, side massage mechanisms are also provided on both sides of the backrest 3. These side massage mechanisms are configured to repeatedly inflate and contract airbags at a predetermined rhythm, thereby massaging the sides of the user's arms and shoulders from the left and right.
[0031] like Figure 1 , Figure 3 As shown, armrests 7 are fixed on both sides of the seat 2, and the upper part of the armrests 7 forms a space large enough to support the user's arm. An airbag (not shown) that can expand by air pressure is provided in this space, which is configured to push and massage the user's arm placed in the space.
[0032] The footrest 4 is designed to support or massage the lower limbs of a user seated on the seat 2. A pair of retaining grooves 6 are formed in the footrest 4, each allowing an individual lower limb to be inserted. A foot massage mechanism (not shown) is built into the facing surfaces inside these retaining grooves 6. This foot massage mechanism consists of a pair of kneading pads that repeatedly move closer and further apart at a predetermined rhythm, thereby massaging the user's lower limbs inserted between the kneading pads by pushing them from the left and right.
[0033] Moreover, such as Figure 1 , Figure 2A , Figure 2B As shown, the armrest 7 in this embodiment has a teardrop shape in the side view, and the lowest part of the armrest 7 is shaped like a shape close to the ground F. That is, because the armrest 7 is a relatively wide teardrop shape and is arranged to cover the seat 2 and the backrest 3 from the left and right, the left and right views of the user sitting on the seat 2 are blocked by the armrest 7, so that the user can have a massage in a relaxed mood in a private space.
[0034] The armrest 7 is fixed to both sides of the seat 2 (detailed structural description follows), so that when tilted, it moves backward and from bottom to top as part of the seat 2, and moves forward and from top to bottom when the tilt is released.
[0035] Furthermore, the chair-type massager 1 of the present invention differs from the conventional chair-type massager 1 in the following aspects.
[0036] like Figure 2A , Figure 2B As shown, the seat 2 and the backrest 3 are at a certain angle. When tilted, this certain angle is maintained, the seat 2 and the backrest 3 move in tandem, and the backrest 3 tilts backward. Figure 2B → Figure 2A Conversely, when the tilt is released, maintaining a certain angle, the seat 2 and the backrest 3 move in tandem and the backrest 3 rises forward. Figure 2A → Figure 2BWhen tilted, the armrest 7 becomes integrated with the seat 2 and moves backward and upward. Figure 2B → Figure 2A When the tilt is released, the armrest 7 moves forward and downward. Figure 2A → Figure 2B At this time, if there is an object (obstacle) under the armrest 7, the obstacle will be trapped. Such trapping will affect the obstacle itself and also damage the chair-type massager 1.
[0037] The chair-type massager 1 of this embodiment includes a safety mechanism that detects any obstructions (objects other than the user) caught between the armrest 7 and the ground F, and stops the tilting motion when detected. The safety mechanism includes an obstruction detection mechanism 20 for detecting the aforementioned obstruction, and a control unit (not shown) for controlling the tilting motion based on the detection result of the obstruction detection mechanism 20.
[0038] The following is a detailed explanation of security agencies.
[0039] First, before providing a detailed explanation of the safety mechanism, it is necessary to describe the structure in which the armrest 7 is mounted on the seat 2.
[0040] Figure 4 , Figure 5 Displays the installation status. Figure 4 The illustration shows the top plate 15, which is attached to the upper surface of the base 2. Figure 5 The illustration is shown with the top plate 15 omitted. Furthermore, in... Figure 6 The engaging part of the armrest 7 and the clamping detection mechanism 20 are shown on the side of the frame of the seat 2.
[0041] like Figure 6 As shown, the armrest 7 engages with the outer wall of the frame above the seat 2 and with two portions of the frame, namely the front and rear portions, thereby forming an engaging portion for integrally fixing the armrest 7 and the seat 2. This engaging portion has a bracket-shaped protrusion 16 conventionally arranged to extend from the side, and a through hole 17 extending vertically is formed in the center of this protrusion 16. Furthermore, an elongated hole 18 extending in the front-rear direction is formed at the base end of this protrusion 16 (the portion adjacent to the frame) for the claw member 19, described later, to engage (hook).
[0042] Between the two protrusions 16 in the front-rear direction, in other words, at the center of the frame in the front-rear direction, a clamping detection mechanism 20 is provided. The detailed structure of the clamping detection mechanism 20 is described below.
[0043] The protrusion 16 and the clamping detection mechanism 20 are located not only on the upper left side of the frame but also on the upper right side of the frame. The left protrusion 16 fixes the left armrest 7 to the seat 2, and the right protrusion 16 fixes the right armrest 7 to the seat 2. The left clamping detection mechanism 20 detects clamping that occurs at the lower end of the left armrest 7 where it is clamped to the ground F, and the right clamping detection mechanism 20 detects clamping that occurs at the lower end of the right armrest 7 where it is clamped to the ground F.
[0044] On the other hand, such as Figure 4 , Figure 5 As shown, on the inner side of the armrest 7 (the side facing the user), there is a hook-on portion (hook 21) that engages with the aforementioned protrusion 16. The hook 21 is provided at a position corresponding to the protrusion 16, that is, at predetermined intervals in the front-back direction on the inner side of the armrest 7. The hook 21 has a protrusion 22 that protrudes from the inner side of the armrest 7, and a pin-shaped engaging rod 23 that extends downward from the protrusion 22. The engaging rod 23 passes through a through hole 17 provided in the center of the protrusion 16 from above, thereby mounting the armrest 7 to the seat 2. Furthermore, there is a sheet-like member (mounting piece 24) extending downward from the protrusion 22. The middle part of the mounting piece 24 in the vertical direction is pivotally supported and can rotate freely about the front-back axis, and the lower end of the mounting piece 24 is formed in a way that folds back outward in the width direction (claw member 19). The lower end of the mounting plate 24 is inserted from above into the elongated hole 18 formed on the base end side of the protrusion 16, and the claw member 19 of the mounting plate 24 is inserted into the protrusion 16 (inside the elongated hole 18), thereby securely fixing the armrest 7 to the seat 2. By pressing the upper end of the mounting plate 24 outward in the width direction, the lower end of the mounting plate 24 disengages from the protrusion 16, and the engagement between the armrest 7 and the seat 2 is released.
[0045] Despite this, a slight clearance is provided when the hook portion 21 is engaged with the protrusion portion 16, allowing the armrest portion 7 to move a few millimeters vertically relative to the seat portion 2. This clearance is an important structural feature for detecting the engagement state.
[0046] like Figure 6 As shown, a clamping detection mechanism 20 is provided at the center of the frame on the upper side of the seat 2 in the front-rear direction. The upper surface of the clamping detection mechanism 20 is flush with the top plate 15 constituting the seat 2, and a detection hole 25 in the shape of an elongated hole 18 in the front-rear direction is formed on the upper surface. A detection piece 26 (see reference) is inserted into the inner wall of the armrest 7 in a downward-hanging shape through the detection hole 25. Figure 3 , Figure 4 This causes the detection switch 27 located in the clamping detection mechanism 20 to be pressed in and become conductive, detecting that the armrest 7 is normally inserted relative to the seat 2.
[0047] exist Figure 7 , Figure 8 An exploded perspective view of the detection switch 27 is displayed.
[0048] As shown in the figure, the detection switch 27 has a plate-shaped electrode 28 arranged in pairs at the front and back, and another electrode 29 positioned above the first electrode 28, which is bent into a convex shape in the side view. A rectangular cover 30 with an open lower surface is configured to cover the other electrode 29 from above, and a spring member 31 is provided between the cover 30 and the surface where the first electrode 28 is located. Furthermore, a spring member 31 is also provided between the first electrode 28 and the other electrode 29. With the aid of this spring member 31, when the armrest 7 is not installed on the seat 2, the other electrode 29 is lifted from the first electrode 28, and the two electrodes are not in contact. Then, a detection plate 26 is inserted through the detection hole 25 located on the upper surface of the clamping detection mechanism 20, and the cover 30 is pressed downwards, thereby forming a state where the first electrode 28 descends downwards and contacts the other electrode 29. Therefore, when the armrest 7 is installed on the seat 2, the detection switch 27 is always in the on state.
[0049] like Figure 2B As shown, when the tilt is released, if the lower end of the handrail 7 is caught between itself and the ground F, the handrail 7 will lift slightly, causing the detection plate 26 to separate upwards from the detection switch, and the other electrode 29 to lift from the first electrode 28, resulting in a situation where the two electrodes are not in contact (cut-off state). By observing this cut-off state, the catching caused by the handrail 7 can be detected.
[0050] In this way, the detection switch is set to be in the on state as normal and in the off state as clamped (abnormal state). Thus, even if normal detection cannot be performed due to the detection switch being disconnected, the worst-case scenario such as clamping will not be missed.
[0051] The following explains the operation mode of the clamping detection mechanism 20 described above and the clamping detection action that accompanies this operation.
[0052] First, when the chair-type massager 1 of this embodiment is assembled, the right armrest 7 and the left armrest 7 are respectively installed on the left and right sides of the seat 2. Specifically, the seat 2 and the armrest 7 are integrated by inserting a locking rod 23 provided on the inner side wall of the armrest 7 into the through hole 17 provided in the protrusion 16 of the seat 2 from above. In order to prevent this integrated structure from being easily disengaged, the lower end of the mounting piece 24 provided in the protrusion 16 is inserted into the elongated hole 18 formed on the base end side of the protrusion 16 from above, and the folded-back part of the mounting piece 24 hangs on the protrusion 16 (inside the elongated hole 18). By pressing the upper end of the mounting piece 24 outward in the width direction, the lower end of the mounting piece 24 falls off the protrusion 16. Although the engagement between the armrest 7 and the seat 2 will be released, in many cases, once the armrest 7 is installed in the seat 2, there is generally no need to release the engagement between the two.
[0053] When the armrest 7 is installed on the seat 2, a downward-hanging detection plate 26 (detection instrument, see reference) is formed on the inner wall of the armrest 7. Figure 3 , Figure 4 Insert it into the detection hole 25, thereby pressing in the detection switch 27 located in the clamping detection mechanism 20 and making it in the conducting state.
[0054] And, as Figure 2A , Figure 2B As shown, regarding the chair-type massager 1, the seat 2 and the backrest 3 have a certain angle. When tilted, this certain angle is maintained, the seat 2 and the backrest 3 are linked together, and the backrest 3 tilts backward. Figure 2B → Figure 2A Conversely, when the tilt is released, maintaining a certain angle, the seat 2 and the backrest 3 move in tandem and the backrest 3 rises forward. Figure 2A → Figure 2B When tilted, the armrest 7 becomes integrated with the seat 2 and moves backward, and also moves from bottom to top. Figure 2B → Figure 2A When the tilt is released, the armrest 7 moves forward and downward. Figure 2A → Figure 2B At this time, if there is an object (obstacle) under the armrest 7, the obstacle will be trapped. When this trapping occurs, the armrest 7 moves slightly upward relative to the seat 2. Because of this upward movement, the detection plate 26 moves upward, resulting in a cutoff state where the two electrodes (one electrode 28, the other electrode 29) of the detection sensor are not in contact. By observing this cutoff state, the trapping caused by the armrest 7 can be detected.
[0055] If the clamping detection mechanism 20 detects clamping caused by the armrest 7, the control unit that controls the tilting state of the seat 2 and the backrest 3 sends a signal (the detection sensor sends a cut-off signal) notifying that clamping has occurred. Upon receiving this signal, the control unit learns that an unexpected clamping situation has occurred and controls the tilting action to stop the tilting action and the accompanying actions (such as the operation of the massage mechanism).
[0056] Furthermore, when the backrest 3 is not fully upright—in other words, when a clamping signal is received during tilting and the movement of the backrest 3 stops—a new unforeseen situation arises where the user remains in a reclining position and is unable to get up. To avoid such a situation, it is preferable that when the clamping detection mechanism detects a clamping state, the control unit only allows a predetermined amount of tilting movement and accompanying movements. For example, it is highly preferable that after clamping is detected, tilting and other movements can be controlled within a few seconds, and that after clamping is detected, tilt release and other movements can be performed at only a certain angle.
[0057] As described above, the chair-type massager 1 of this embodiment is configured such that the armrest 7 moves from below to above when tilted and moves from above to below when tilted off. It has a clamping detection mechanism that detects the occurrence of clamping between the armrest 7 and the ground F when tilted off, thereby reliably preventing clamping caused by the armrest 7 and the ground F when tilted off.
[0058] The embodiments disclosed herein should be understood as illustrative and not restrictive. In particular, matters not explicitly disclosed in the embodiments herein, such as operating conditions, various parameters, structural dimensions, weight, and volume, are not outside the scope of what is commonly practiced by those skilled in the art, and any value readily conceived by those skilled in the art would be appropriate.
[0059] Explanation of reference numerals in the attached figures
[0060] 1: Chair-type massage machine
[0061] 2: Seat
[0062] 3: Backrest
[0063] 4: Footrest
[0064] 5: Feet
[0065] 6: Retaining groove
[0066] 7: Armrest
[0067] 15: Top Slab
[0068] 16: Protruding part
[0069] 17: Through hole
[0070] 18: Long hole
[0071] 19: Claw component
[0072] 20: Clamping into the testing agency
[0073] 21: Hook and Hang Section
[0074] 22: Protrusion
[0075] 23: Card-connecting stick
[0076] 24: Installation Piece
[0077] 25: Inspection Hole
[0078] 26: Detection strip (detection equipment)
[0079] 27: Detection switch
[0080] 28: One electrode
[0081] 29: The other electrode
[0082] 30: Cover
[0083] 31: Spring component
[0084] F: Ground.
Claims
1. A chair-type massager, comprising a seat, armrests, a backrest, and a massage mechanism, wherein the armrests are disposed on the sides of the seat, the backrest is disposed on the rear of the seat, and the massage mechanism is disposed on at least one of the seat, armrests, and backrest; the armrests disposed on the seat are configured to move from bottom to top when tilted and from top to bottom when the tilt is released; the chair-type massager is characterized in that... It has a clamping detection mechanism that detects the occurrence of clamping between the aforementioned handrail and the ground when the tilt is released. The aforementioned clamping detection mechanism is configured to detect when the aforementioned handrail is clamped between the handrail and the ground, and to detect that the aforementioned clamping has occurred based on the detection result.
2. The chair-type massager as described in claim 1, characterized in that, The aforementioned clamping detection mechanism includes a detection switch and a detection device. The aforementioned detection switch is located on the aforementioned seat or armrest, and the aforementioned detection device is located on the aforementioned armrest or seat and operates the aforementioned detection switch.
3. The chair-type massager as described in claim 1 or 2, characterized in that, It is equipped with a control unit that controls the tilting state of the seat and backrest. When the aforementioned clamping detection mechanism detects a clamping state, the aforementioned control unit controls the tilting action and the accompanying actions that accompany the tilting action to stop.
4. The chair-type massager as described in claim 1 or 2, characterized in that, It is equipped with a control unit that controls the tilting state of the seat and backrest. When the aforementioned clamping detection mechanism detects a clamping state, the aforementioned control unit performs the following control: only a predetermined amount of tilting motion and accompanying motions are allowed, and the operation stops after only the predetermined amount of motion has been performed.