Massage chair

Abstract

The application discloses a massage chair and relates to the technical field of massage chairs; the massage chair comprises a machine frame, a seat cushion, a chair back, an arm massage part and a machine core; the machine frame is used for supporting the seat cushion, the chair back and the arm massage part; the seat cushion is used for sitting; the chair back is arranged at the rear end of the seat cushion; the arm massage part is arranged at the left and right sides of the seat cushion; the machine core is arranged at the rear end of the chair back and has a machine core massage ball; the machine frame is assembled by a plurality of angle steel pipes or steel frames and has a first sliding rail, a second sliding rail and a third sliding rail; the seat cushion slides to an upper oblique corner through the first and second sliding rails and corresponding pulleys; the chair back slides downward at an oblique angle from top to bottom; and the third sliding rail is used for adjusting the extension and retraction of the machine core massage ball through an adjusting mechanism when the seat cushion moves forward and the chair back is tilted; thus, the massage area is maximized, and the massage quality is improved.

Description

TECHNICAL FIELD

[0001] The present invention relates to a massage chair. BACKGROUND

[0002] The various massage chair designs known at present generally have the following deficiencies to be improved:

[0003] 1. When the backrest of the massage chair is tilted forward or backward, the distance between the massage ball and the human hip will change due to the sitting angle or the lying angle, and if the distance is too far, the massage will not reach the position; on the contrary, if the distance is too close, the massage will cause a sharp pain. Therefore, it is necessary to adjust the protruding amount of the massage ball when the backrest is tilted and the human body is in a lying angle, in order to achieve good massage quality.

[0004] 2. The interface between the seat cushion and the backrest, i.e. the hip area of the human body, will produce a height difference when the backrest is tilted, and the hip of the human body will also be uneven, which not only does not conform to the comfortable curve of the human body in a lying position, but also makes the distance between the massage ball and the hip different, which cannot achieve good massage quality.

[0005] 3. The known massage chairs are generally divided into two types, one is "seat cushion connected with backrest" (also known as L type), which has a larger massage area (can massage the hips), but the body sitting position cannot be changed, i.e. the body cannot be stretched flat, which is not comfortable; the other type is "seat cushion separated from backrest", which can stretch the body flat, but the massage area of the massage core is smaller, which can only massage the waist and cannot reach below the hips.

[0006] 4. When the known massage chair is arranged, the distance from the back to the wall is at least 25-30 cm, which increases the occupied space. SUMMARY

[0007] The main purpose of the present invention is to provide a massage chair with maximized massage area to improve the use quality.

[0008] Another main purpose of the present invention is to provide a massage chair with adjustable massage ball extension amount to improve the massage quality.

[0009] Another main purpose of the present invention is to provide a massage chair with adjustable hip curve to conform to the ergonomics.

[0010] Still another main purpose of the present invention is to provide a massage chair with reduced distance from the back to the wall to reduce the occupied space.

[0011] To achieve the above object, the massage chair of the present application comprises a machine frame, a seat cushion, a backrest, an arm massage part and a machine core, etc. The machine frame is used to support the seat cushion, the backrest and the arm massage part. The seat cushion is used for a human body to sit. The backrest is arranged at the rear end of the seat cushion. The arm massage part is arranged at the left and right sides of the seat cushion. The machine core is arranged at the rear end of the backrest and has a machine core massage ball. The machine frame is assembled by a plurality of angle steel pipes or steel frames and has a first sliding rail, a second sliding rail and a third sliding rail. The seat cushion slides to an upper oblique corner by the first and second sliding rails and the corresponding sliding wheels. The backrest slides downward at an inclined angle from top to bottom. The third sliding rail adjusts the extension amount of the machine core massage ball by a adjusting mechanism when the seat cushion moves forward and the backrest is tilted. Thus, the massage area is maximized and the massage quality is improved.

[0012] The massage chair has the adjusting device which comprises a fixed block arranged at one side of the third sliding rail, the surface of the third sliding rail has a light shielding strip, a seat cushion extension part which is connected with the seat cushion at one end and is fixed with the fixed block at the other end, a tilt light sensor arranged at the outside of the third sliding rail and an electric push rod arranged at the bottom of the machine frame to drive the third sliding rail to move. Thus, the extension amount of the machine core massage ball is adjusted to achieve the best massage quality.

[0013] The massage chair has the backrest rear end which is arranged with a plastic track. The inner side of the plastic track has a rack and the outer side is fixed with a reinforcing metal part. The plastic track is assembled by an upper track and a lower track. The connecting ends of the upper and lower tracks have a clamping part and a clamping groove and a flange and a groove respectively. Thus, the plastic track can be disassembled and packed to reduce the packing material.

[0014] The massage chair has the seat cushion rear end and the backrest front end which are arranged with a hip connecting assembly. Thus, the smoothness of the curve between the seat cushion and the backrest is automatically adjusted.

[0015] The massage chair has the arm massage part which has a side plate arm deviation mechanism. The mechanism comprises an adjusting swing arm which is fixed with the seat cushion at one end and is connected with an ear piece at the other end and a connecting rod group which is arranged at the outside of the backrest and is connected with the adjusting swing arm. Thus, the arms are ensured not to deviate from the massage area.

[0016] The massage chair has the connecting rod group which comprises a first connecting rod which is fixed with the backrest at one end and has an ear piece connected with the adjusting swing arm at the middle, a second connecting rod which is connected with the first connecting rod at one end, a third connecting rod which is connected with the second connecting rod at one end and is fixed with the seat cushion (the first connecting rod) at the other end and a fourth connecting rod which is connected between the first and third connecting rods. As known from the above description, the present application has at least the following advantages and effects which are much better than the prior art.

[0017] The beneficial effects of the present application are:

[0018] 1. The seat cushion 2 and the chair back 3 are operated in a separated state when the chair back is reclined, and the movable stroke design of the core 6 can complete the movable area from the shoulder and neck to the back of the thigh under the condition that the chair back 3 and the seat cushion 2 are separated, so as to maximize the massage area. That is, the body angle can be from a sitting position to a completely lying position, and is not limited to the massage area, so as to massage the range below the hips and the back of the thighs.

[0019] 2. When the chair back 3 is reclined, the seat cushion 2 is first moved forward, so that the massage chair can greatly reduce the distance from the wall when the chair back is against the wall. The test results show that the distance from the wall of the conventional massage chair without seat cushion forward movement is at least 25-30 cm, and the distance from the wall of the present application is only about 10 cm. Obviously, the zero wall function can be effectively achieved, and more use space can be released for other configurations.

[0020] 3. When the seat cushion 2 is moved forward and the chair back 3 is reclined, the light blocking strip 131 of the third slide rail can be sensed and judged by the light sensor 18 below, so as to adjust the extension amount of the core massage ball 64 during the reclining process according to the change of the angle of the chair back 3. The extension amount of the core massage ball 64 is consistent at any angle, so as to achieve the best massage quality.

[0021] 4. The hip connection assembly 7 is fixed to the end of the seat cushion 2 and the front end of the chair back 3 through the front and rear rotation center points. Therefore, during the reclining process of the chair back 3, the curve between the seat cushion 2 and the chair back can be automatically adjusted according to the change of the reclining angle, so as to conform to the hip curve of the human body in a sitting position or a lying position, and improve the bad high-low difference at the connection of the conventional massage chair.

[0022] 5. The side plate adjustment swing arm and the linkage design of the linkage assembly 40 of the side plate arm swing mechanism 4 can make the arm easily and smoothly placed without leaving the massage area, so as to achieve better arm massage effect.

[0023] 6. The plastic track 30 can be disassembled and packaged, which can effectively reduce the packaging material accumulation, improve the single trip transportation volume, and reduce the overall transportation cost. Moreover, the meshing transmission of the plastic rack 31 and the plastic gear 65 can effectively reduce the running noise and improve the use quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the present application.

[0025] Figure 2 is a perspective view of the internal structure of the present application.

[0026] Figure 3is a perspective view of the seat cushion portion of the present invention.

[0027] Figure 4 is a perspective view of the chair back rail of the present invention.

[0028] Figure 5 is a partial enlarged view of the chair back rail of the present invention.

[0029] Figure 6 is an assembled sectional view of the chair back rail of the present invention.

[0030] Figure 7 is a schematic view of the transmission of the chair back rail and plastic gear of the present invention.

[0031] Figure 8 is a side view of the arm swing mechanism of the side plate of the present invention.

[0032] Figure 9 is a schematic view of the present invention in use (one).

[0033] Figure 10 is a schematic view of the present invention in use (two).

[0034] Figure 11 is a schematic view of the present invention in the backrest reversed state (one).

[0035] Figure 12 is a schematic view of the present invention in the backrest reversed state (two).

[0036] Figure 13 is a schematic view of the present invention in the backrest reversed state (three).

[0037] Figure 14 is a schematic view of the present invention in the backrest reversed state of the movement of the movement core (one).

[0038] Figure 15 is a schematic view of the present invention in the backrest reversed state of the movement of the movement core (two).

[0039] Figure 16 is a schematic view of the present invention in the backrest reversed state of the telescopic state of the movement core (one).

[0040] Figure 17 is a schematic view of the present invention in the backrest reversed state of the telescopic state of the movement core (two).

[0041] Figure 18 is a schematic view of the present invention in the backrest reversed state of the telescopic state of the movement core (three).

[0042] Figure 19 is a schematic view of the present invention in the backrest reversed state of the telescopic state of the movement core (four).

[0043] The reference numerals and names in the figure are as follows: 100, massage chair; 1, machine frame; 11, 12, 13 slide rails; 131, shading strip; 141, 142, 143 pulleys; 15, adjustment mechanism; 16, fixing block; 17, seat extension; 18, tilting light sensor; 19, 51 electric push rod; 2, seat cushion; 3, chair back; 30, plastic track; 30a, upper track; 30b, lower track; 31, Rack; 32. Sheet metal part; 33. Clamping part; 34. Clamping slot; 35. Flange; 36. Groove; 4. Arm massage part (side panel arm swing mechanism); 40. Connecting rod group; 41. Side panel adjustment swing arm; 42, 43, 44, 45 connecting rods; 421. Ear piece; 5. Foot massage device; 6. Movement; 62. Gear; 63. Gear row; 64. Massage ball; 65. Plastic gear; 7. Hip connection component. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the accompanying drawings and examples.

[0045] Reference Figures 1-8 The massage chair 100 of the present invention comprises a machine frame 1, a seat cushion 2, a backrest 3, an arm massage unit 4, a foot massage device 5, and a movement 6 (i.e., a driving mechanism). The machine frame 1 is used to support the seat cushion 2, backrest 3, and arm massage unit 4. The seat cushion 2 is for seating, the backrest 3 is located at the rear end of the seat cushion 2 and can be tilted backward, the arm massage units 4 are located on both sides of the seat cushion 2 for massaging the arms, the foot massage device 5 is located at the front end of the seat cushion 2 and can be lifted upward, and the movement 6 is located at the rear end of the backrest 3.

[0046] The machine frame 1 is assembled from a plurality of angle steel pipes or steel frames. Please also refer to Figure 10 、 12, including: a first slide rail 11, a second slide rail 12 and a third slide rail 13; wherein the first slide rail 11 is arranged on both sides of the seat cushion 2 in a fixed state of being inclined upward from back to front, and is internally provided with front and rear pulleys 141, 142 which are fixedly connected with the seat cushion 2 and can drive the seat cushion 2 to slide to an inclined upper corner; the second slide rail 12 is arranged on both sides of the chair back 3 in a fixed state of being inclined downward from back to front, and is internally provided with a pulley 143 which is fixedly connected with the chair back 3 and can drive the chair back 3 to slide downward at an inclined angle from top to bottom; the third slide rail 13 is arranged below the seat cushion 2 (i.e. the machine table frame 1), can push the seat cushion 2 to move forward through an adjusting mechanism 15, and can adjust the extension protrusion amount of the massage ball of the machine core 6 when the chair back 3 is tilted back, the adjusting mechanism 15 comprises: a fixed block 16 arranged on one side of the third slide rail 13; a seat cushion extension piece 17 which is movably connected with the seat cushion 2 at one end and fixedly connected with the fixed block 16 at the other end; a tilt light sensor 18 arranged on the outside of the third slide rail 13; and a motorized push rod 19 arranged at the bottom of the machine table frame 1 and capable of driving the third slide rail 13 to displace; wherein the surface of the third slide rail 13 is provided with a light-shielding strip 131.

[0047] The chair back 3 is provided with a plastic track 30 on both sides of the rear end, the inner bottom end of the plastic track 30 is provided with a rack 31, and the outer side is fixedly connected with a reinforcing sheet metal part 32, the plastic track 30 is made of plastic steel and is assembled by an upper track 30a and a lower track 30b, the connecting ends of the upper and lower tracks 30a, 30b are respectively provided with a clamping part 33 and a clamping groove 34, and at the connecting end profile and correspondingly provided with a flange 35 and a groove 36, so that the chair back 3 can be disassembled and packaged to reduce the packaging material.

[0048] The arm massage part 4 is a side plate arm tilting mechanism, which comprises: an adjusting tilting arm 41, one end (bottom end) of which is fixedly connected to the frame of the seat cushion 2 and is sleeved with a silent sleeve (not shown in the figure), and the other end (top end) is movably pivoted to an ear piece 421; and a connecting rod set 40 arranged on the outside of the chair back 3 and pivoted to the adjusting tilting arm 41, which can be connected and moved with the seat cushion 2, comprising: a first connecting rod 42, one end of which is fixedly connected to the chair back 3, and the middle part is provided with an ear piece 421 which is pivoted to the adjusting tilting arm 41; a second connecting rod 43, one end of which is movably pivoted to the first connecting rod 42; a third connecting rod 44, one end of which is fixedly connected to the chair back 3 at the same time as the first connecting rod 42, and the other end is movably pivoted to the second connecting rod 43; and a fourth connecting rod 45, movably pivoted between the first and third connecting rods 42, 44.

[0049] The core 6 is composed of a motor and a gear set. The gear 62 and the gear rack 63 can drive the core massage ball 64 to rotate and move. A plastic gear 65 is used to engage with the rack 31 of the chair back plastic track, so that the core massage ball 64 can move up and down in the middle of the chair back 3 to perform massage action.

[0050] The seat cushion 2 and the chair back 3 are pivotally connected by a hip connection assembly 7. Please refer to Figures 17-19 ; the foot massage device 5 can be lifted or lowered by another electric push rod 51. Please refer to Figure 13 .

[0051] According to the above structure, when started, the core 6 can drive the massage ball 64 to move up and down on the chair back plastic track 30, as shown in Figure 1 、 2 , 14-19, to massage the human body from the shoulder and neck to the back of the thigh. Then the chair back 3 can be set to a tilted state (hereinafter referred to as back tilt). At this time, the seat cushion 2 is first driven by the electric push rod 19, and the front and rear pulleys 141, 142 of the first slide rail 11 are used to drive the seat cushion 2 to slide to the upper corner, that is, the seat cushion 2 moves forward while the chair back 3 moves forward by a certain distance. Then, the chair back 3 is rotated and centered through the front pulley 141 of the first slide rail with the seat cushion 2, and then slides downward at an inclined angle through the second slide rail 12 through the rear pulley 142, completing the action of tilting the chair back 3, so that the human body changes from a sitting position to a flat (supine) lying position. The third slide rail 13 is also driven forward at the same time. During the back tilt process, the tilt light sensor 18 adjusts the extension of the core massage ball 64 at any time, as shown in Figure 3 、 14 -19, to achieve the best massage quality.

[0052] Since the seat cushion 2 and the chair back 3 are operated in a separated state during back tilt, in the case where the angle of the seat cushion 2 does not change and the angle of the chair back 3 changes, the hip area becomes a connection point. At this time, the hip connection assembly 7 can be fixed to the end of the seat cushion 2 and the front end of the chair back 3 through the front and rear rotation center points, so that it can change with the tilt angle of the chair back 3 during back tilt, and automatically adjust the smoothness of the curve between the seat cushion 2 and the chair back 3, to achieve the best comfort level, while meeting the hip curve of the human body in a sitting or supine position, to improve the abnormal height difference at the connection point of the known connection point, as shown in Figures 17-19 .

[0053] When the arm massage part 4 is set to start, the lower end of the side plate adjustment swing arm 41 is set as the A point pivot, and the upper end is set as the B point pivot. The pivot connection between the first and third connecting rods 42, 44 and the chair back 3 is the C point pivot, as shown in Figures 8-13As shown. Therefore, when the seat cushion 2 moves forward, the point A will be moved forward, and the points B and C will be fixed with the linkage group, and then the backrest 3 will be reclined. Since the rotation centers of the points B and C are not the same point, but the distance between the points B and C is constant, when the backrest 3 is reclined, the distance between the points A and C will be pulled apart due to the forward movement of the point A, so that the point C drives the point B to swing downward to the right, and the point C slides downward, so that the position of the arm is kept in the moving track driven by the three points A, B and C, so as to ensure that the arm will not be out of the massage area.

[0054] The above description is only the preferred embodiment of the present application, and the above specific embodiment is not a limitation on the present application. Various modifications and changes can occur within the technical concept of the present application, and any modification, change or equivalent replacement made by those skilled in the art according to the above description shall fall within the scope of the present application.

Claims

1. A massage chair comprising: a machine frame, a seat cushion, a backrest, an arm massage part, and a movement; the machine frame is used to support the seat cushion, the backrest, and the arm massage part; the seat cushion is for a person to sit on; the backrest is located at the rear end of the seat cushion; the arm massage part is located on the left and right sides of the seat cushion; the movement is located at the rear end of the backrest and has a movement massage ball; wherein, The machine frame is assembled from a plurality of angled steel pipes or steel frames and has a first slide rail, a second slide rail, and a third slide rail. The first and second slide rails cooperate with corresponding pulleys to allow the seat cushion to slide upward at an angle, and the chair back to slide downward at an inclined angle from top to bottom. The third slide rail then has an adjustment mechanism that adjusts the extension and extension of the massage ball when the seat cushion moves forward and the chair back is reclined. The adjustment mechanism includes a fixed block provided on one side of the third slide rail, the surface of which has a light-shielding strip; a seat cushion extension piece, one end of which is flexibly connected to the seat cushion and the other end of which is fixed to the fixed block; a tilting light sensor provided on the outer side of the third slide rail; and an electric push rod provided on the bottom of the machine frame, which can drive the third slide rail to move.

2. A massage chair according to claim 1, wherein: A plastic track is provided on both sides of the chair back end. The inner bottom of the plastic track has a rack, and the outer side is fixed with a reinforcing sheet metal. The plastic track is assembled by an upper track and a lower track. The connecting ends of the upper track and the lower track respectively have a snap-fitting part and a snap-fitting groove, and a flange and a groove.

3. A massage chair according to claim 1, wherein: A buttocks connecting component is pivotally arranged between the rear end of the seat cushion and the front end of the chair back.

4. The massage chair according to claim 1, wherein: The arm massage part has a side plate arm swing mechanism, which includes: An adjusting swing arm has one end fixedly connected to the seat cushion and the other end movably connected to an ear piece; and a connecting rod assembly, consisting of a plurality of connecting rods, is arranged on the outer side of the chair back and is pivotally connected to the adjusting swing arm.

5. A massage chair according to claim 4, wherein: The connecting rod assembly includes: a first connecting rod, one end of which is fixedly connected to the chair back and has an ear piece in the middle pivotally connected to the adjustment swing arm; a second connecting rod, one end of which is pivotally connected to the first connecting rod; a third connecting rod, one end of which is pivotally connected to the second connecting rod and the other end is fixedly connected to the first connecting rod; and a fourth connecting rod pivotally connected between the first and third connecting rods.

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