A rocking massage chair frame

Abstract

The utility model relates to a rocking type massage chair frame, include: sitting and leaning frame, leg and foot frame, underframe and main electric push rod, sitting and leaning frame is positioned above underframe, under the drive of main electric push rod, sitting and leaning frame can change angle relative to underframe, wherein: main electric push rod one end is hinged in sitting and leaning frame, other end is hinged in a movement support point, this movement support point is by the power mechanism that sets up on underframe drive and support, power mechanism can drive movement support point reciprocating motion along front -back direction to and through main electric push rod drive sitting and leaning frame reciprocating swing. The structure supports main electric push rod through movement support point, makes main electric push rod still can follow movement support point to produce position change after adjusting sitting and leaning frame sitting and lying angle change, movement support point reciprocating motion along front -back direction under the drive of power mechanism, in turn through main electric push rod drive sitting and leaning frame swing back and forth, superimposed swing action.

Description

Technical Field

[0001] This utility model belongs to the field of massage chair technology, and specifically relates to a rocking massage chair frame, which, in addition to the sitting and reclining adjustment, has a back-and-forth rocking function. Background Technology

[0002] Current massage chairs all feature adjustable angles to allow for continuous changes between sitting and reclining positions. However, the adjustment movements are relatively simple, primarily focusing on providing massage to different areas based on the massage equipment. A massage chair, on the other hand, is a complete and comfortable unit formed by installing various massage devices on a chair frame, along with soft padding and a cover. A massage chair frame generally includes: a seat and backrest, a base frame, and an electric actuator, as well as a leg rest hinged to the front of the seat and backrest. Tracks can also be installed on the seat and backrest to allow the massage mechanisms to move up and down, achieving a wide range of massage movements. Driven by the electric actuator, the seat and backrest and leg rest can adjust their angle relative to the base frame, enabling continuous changes between sitting and reclining positions. The leg rest can also be controlled to adjust synchronously, gradually rising to be flush with the seat cushion when shifting to a reclining position. This is the general function of current massage chair frames; besides adjusting the seating position and supporting the massage equipment, they offer no other functions.

[0003] The object of this utility model research is to provide a more reasonable technical solution. Summary of the Invention

[0004] The purpose of this invention is to design a rocking massage chair frame with a seat and backrest that can move back and forth relative to the base frame.

[0005] The present invention is implemented as follows: A rocking massage chair frame includes a seat backrest, a leg support, a base frame, and a main electric push rod. The seat backrest is positioned above the base frame. Driven by the main electric push rod, the seat backrest can change its angle relative to the base frame, and complete the continuous change between sitting and lying positions. The leg support is suspended at the front edge of the seat backrest, and can follow the movement of the seat backrest and can be adjusted to be raised and lowered relative to the seat backrest. The main electric push rod is characterized in that one end is hinged to the seat backrest, and the other end is hinged to a motion fulcrum. The motion fulcrum is driven and supported by a power mechanism set on the base frame. The power mechanism can drive the motion fulcrum to reciprocate in the front-back direction, and drive the seat backrest to rock back and forth through the main electric push rod.

[0006] The base frame is equipped with a pair of linear guide rails facing back and forth. A sliding frame is fixed between the sliders of the two linear guide rails, and the sliding frame forms a motion fulcrum. The sliding frame has two long sides correspondingly locked to the two sliders and at least one short side connecting the two long sides. A lug for hinged main electric push rod is provided on the short side, as well as a long slot or pin for power mechanism access. The power mechanism has the following two structures: 1. The power mechanism includes a motor and a reduction gear fixed on the base frame, and an offset shaft output by the reduction gear. The offset shaft slides through the long slot or is connected to the pin via a connecting rod transmission; 2. The power mechanism is a reciprocating electric push rod, one end of which is hinged to the base frame and the other end is hinged to the short side of the sliding frame.

[0007] The power mechanism includes a motor, a reduction gear, and an offset shaft output by the reduction gear. The offset shaft is used as a fulcrum to support and drive the main electric push rod.

[0008] The offset shaft has the following three options: 1. It is set at the eccentric position of the last stage gear of the reduction gear; 2. It is set at the eccentric position of a turntable, which is locked on the shaft of the last stage gear of the reduction gear; 3. It is a crankshaft on the last stage gear of the reduction gear.

[0009] As a preferred embodiment, the seat and the base frame are provided with a matching arc-shaped guide groove and two pairs of pulleys at the front and rear. The pulleys roll in the arc-shaped guide groove to position the seat and the base frame above the base frame.

[0010] As a preferred embodiment, a pair of support columns are provided at the rear of the base frame, and the seat frame is hinged to the upper part of the support columns via a pivot, so that the seat frame is positioned above the base frame.

[0011] As a preferred embodiment, the base frame is hinged to a front swing arm and a rear swing arm on both sides, and the upper ends of the front swing arm and the rear swing arm are respectively hinged to the seat frame, forming a seat frame positioned above the base frame.

[0012] The seat frame includes two integrated L-shaped rails and a crossbeam connecting the two L-shaped rails. Two or more crossbeams are distributed and welded between the two L-shaped rails. The seat frame has a seat cushion and a backrest. A swing rod is hinged to the crossbeam at the front edge of the seat cushion. The lower end of the swing rod is provided with a contact wheel that can abut against the back of the leg frame. One end of a leg electric push rod is hinged to the middle of the swing rod, and the other end is hinged to the crossbeam at the rear of the seat cushion, driving the leg frame to rise.

[0013] The base frame is equipped with two ground-feeding rollers at the rear.

[0014] This invention uses a fulcrum to support the main electric push rod, so that after the main electric push rod adjusts the sitting and reclining angle of the seat frame, it can also follow the position change of the fulcrum. The fulcrum moves back and forth in the front and back direction under the drive of the power mechanism, and then drives the seat frame to swing back and forth through the main electric push rod, superimposing the swinging action. Attached Figure Description

[0015] The present invention will be further described below with reference to specific figures:

[0016] Figure 1 Front view diagram of a rocking massage chair frame

[0017] Figure 2 Rear view diagram of a rocking massage chair frame

[0018] Figure 3 Exploded view of a rocking massage chair frame

[0019] Figure 4 A side view diagram of a seated posture with the arms extended forward.

[0020] Figure 5 A side view diagram of a seated posture with the arms extended backward.

[0021] Figure 6 A side view illustration of a lying position with the arms extended forward.

[0022] Figure 7 A side view illustration of a lying position with the arms extended backward.

[0023] Figure 8 Schematic diagram of the second drive mechanism

[0024] Figure 9 A schematic diagram of the two-stage drive mechanism.

[0025] Figure 10 Schematic diagram of a flip-up massage chair frame

[0026] Figure 11 Side view diagram of a flip-up massage chair frame

[0027] Figure 12 Schematic diagram of a forward-moving massage chair frame

[0028] Figure 13 Side view diagram of a forward-moving massage chair frame

[0029] in

[0030] 1—Seat and backrest frame; 11—Arc-shaped guide groove; 12—L-shaped track; 13—Crossbeam; 14—Seat cushion; 15—Backrest;

[0031] 16—Swing lever; 17—Actuator wheel;

[0032] 2—Legged scaffold;

[0033] 3—Base frame; 31—Linear guide rail; 32—Slider; 33—Pulley; 34—Support column; 35—Front swing arm;

[0034] 36—Rear swing arm; 37—Ground roller;

[0035] 4—Main electric actuator; 41—Leg electric actuator;

[0036] 5—Power mechanism; 51—Motor; 52—Reduction gear; 53—Offset shaft; 54—Connecting rod;

[0037] 6—Sliding bracket; 61—Long side; 62—Short side; 621—Long groove; 622—Pin; Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings. It should be noted that, without conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form new embodiments. These constitute preferred embodiments and should not be used to limit the scope of protection of the present invention. Any non-substantial changes or substitutions are within the scope of protection claimed by the present invention.

[0039] Reference Figures 1 to 7 The rocking massage chair frame includes: a seat and backrest 1, a leg support 2, a base frame 3, and a main electric push rod 4. The seat and backrest 1 is positioned above the base frame 3. Driven by the main electric push rod 4, the seat and backrest 1 can change its angle relative to the base frame 3, completing continuous changes between sitting and reclining postures. One end of the main electric push rod 4 is hinged to the seat and backrest 1, and the other end is hinged to a motion fulcrum. This motion fulcrum is driven and supported by a power mechanism 5 mounted on the base frame 3. The power mechanism 5 can drive the motion fulcrum to reciprocate in the front-back direction, and drive the seat and backrest 1 to rock back and forth through the main electric push rod 4. In other words, in the prior art, one end of the main electric push rod is hinged to the base frame 3, and its position is relatively fixed, only used to adjust the angle of the seat and backrest 1; while in this structure, the fulcrum on the base frame 3 used to hinge the main electric push rod 4 is changed to a motion fulcrum driven by the power mechanism 5, so that the seat and backrest 1 can also produce reciprocating rocking at any angle. This motion fulcrum has the following design scheme:

[0040] 1) A pair of linear guide rails 31 facing forward and backward are provided on the base frame 3. A sliding frame 6 is fixed between the sliders 32 of the two linear guide rails 31, and the sliding frame 6 constitutes the motion fulcrum. The sliding frame 6 has two long sides 61 correspondingly locked to the two sliders and at least one short side 62 connecting the two long sides. The short side 62 is provided with a lug for hinged main electric push rod 4, and a long slot 621 for providing access to the power mechanism, or as follows: Figure 8 and Figure 9The pin 622 in the middle; the matching power mechanism 5 has the following two structures: 1. The power mechanism 5 includes a motor 51 and a reduction gear 52 fixed on the base frame, and an offset shaft 53 output by the reduction gear 52, which slides through the long groove 621, such as... Figure 3 Or such as Figure 8 and Figure 9 The first part of the mechanism is connected to the pin 622 via a connecting rod 54. The second part is a reciprocating electric push rod, one end of which is hinged to the base frame 3, and the other end is hinged to the short side 62 of the sliding frame. The electric push rod is a standard finished product and can be directly used as the motion mechanism 5. In this example, the motion fulcrum uses a pair of linear guide rails 31, resulting in smoother reciprocating motion. However, a single linear track solution is not excluded. Figure 8 and Figure 9 In this design, the structure of the pin 622 is more suitable for a single linear guide, while the long slot 621 is better suited for a double linear guide 31 scheme, and can be flexibly selected according to different designs.

[0041] (ii) The power mechanism 5 includes a motor 51, a reduction gear 52, and an offset shaft 53 output from the reduction gear. The offset shaft 53 serves as a fulcrum for supporting and driving the main electric push rod 4. In other words, one end of the main electric push rod 4 is directly hinged to the offset shaft 53 and is directly driven by the offset shaft 53 to reciprocate. This design has the simplest structure.

[0042] The offset shaft 53, as its name suggests, is an eccentric shaft, and it has the following three options: First, it is positioned eccentrically on the final gear of the reduction gear 52, such as... Figure 8 and Figure 9 2. To be positioned eccentrically on a turntable, which is locked to the shaft of the final gear of the reduction gear 52, such as... Figure 1 and Figure 3 ; 3. The crankshaft on the last stage gear of the reduction gear 52, that is, the reduction gear outputs the crankshaft.

[0043] like Figures 1 to 7 In a preferred embodiment, a cooperating arc-shaped guide groove 11 and two pairs of pulleys 33 are provided between the seat frame 1 and the base frame 3. The pulleys 33 roll within the arc-shaped guide groove 11, positioning the seat frame 1 above the base frame 3. In this example, the arc-shaped guide groove 11 is located on one side of the seat frame 1, and the pulleys 33 are located on one side of the base frame 3; their positions can be interchanged. Driven by the main electric push rod 4, the seat frame 1 can move along the arc-shaped guide groove 11, allowing for continuous adjustment of the sitting / reclining angle. Especially when adjusting to a flat position, the seat frame 1 moves forward as a whole, without occupying rear space. The superimposed motion fulcrum reciprocates to drive the main electric push rod 44, producing a swaying motion and increasing the angle adjustment range of the seat frame 1.

[0044] Reference Figure 10 and Figure 11 In a preferred embodiment, a pair of support columns 34 are provided at the rear of the base frame 3. The seat and backrest frame 1 is hinged to the upper part of the support columns 34 via a pivot, thus positioning the seat and backrest frame 1 above the base frame 3. The seat and backrest frame 1 is positioned on the support columns 34 via a pivot at the junction of the seated part and the backrest, and forms a three-point support with the main electric push rod 4. This allows for relatively flexible rotation and rocking around the axis, which is an advantage of this structure. However, when adjusting to a flat position, it occupies space at the rear, requiring sufficient space to be reserved at the rear of the massage chair.

[0045] Reference Figure 12 and Figure 13 In a preferred embodiment, a front swing arm 35 and a rear swing arm 36 are hinged to the front and rear sides of the base frame 3, respectively. The upper ends of the front swing arm 35 and the rear swing arm 36 are hinged to the seat frame 1, forming the seat frame 1 positioned above the base frame 3. The seat frame 1 is supported by four swing arms and is kept stable by the main electric push rod 4. Driven by the main electric push rod 4, it can also adjust the angle and has the characteristic of forward movement, similar to the movement mode of the arc-shaped guide groove 11.

[0046] Furthermore, the seat frame 1 includes two integrated L-shaped tracks 12 and crossbeams 13 connecting the two L-shaped tracks 12. Two or more crossbeams 13 are distributed and welded between the two L-shaped tracks 12 to form a whole. The L-shaped tracks 12 can meet the dynamic massage of the walking massage mechanism from top to bottom. It must be noted here that the two tracks can also be L-shaped by welding two straight rails to meet the needs of a fixed massage mechanism or a massage mechanism that only moves the back. The L-shaped seat frame 1 has a seat cushion 14 and a backrest 15.

[0047] like Figures 10 to 13 The configured leg support 2 is suspended at the front edge of the seat frame 1, and can move with the seat frame 1 and be adjusted to be raised and lowered relative to the seat frame 1. More specifically, a swing rod 16 is hinged to the crossbeam 13 at the front edge of the seat cushion 14. The lower end of the swing rod 16 is provided with a contact wheel 17 that can abut against the back of the leg support 2. One end of a leg electric push rod 41 is hinged to the middle of the swing rod 16 and the other end is hinged to the crossbeam 13 at the rear of the seat cushion 14, driving the leg support 2 to rise.

[0048] Furthermore, the base frame 3 is equipped with two ground-feeding rollers 37 at the rear, which facilitates the adjustment of the massage chair frame position. Simply lift the seat cushion so that the front of the base frame 3 is off the ground and only the rear ground-feeding rollers 37 are supported, and it can be easily dragged, moved or adjusted.

[0049] In summary, Figures 1 to 7As a preferred embodiment, a seat frame 1 is positioned via an arc-shaped guide groove 11, and a turntable with an offset shaft 53 is locked onto the output shaft of the reduction gear of the power mechanism 5. This ensures that the eccentric diameter is not limited by the diameter of the final gear in the reduction gear 52. The configured sliding frame 6 has two short sides 62, one short side having a long groove 621, and the other short side having a lug for hinged main electric push rod 4, forming a staggered arrangement to provide more space during assembly. Additionally, the linear guide rail 31 has standard and non-standard parts; the illustrations are for illustrative purposes only. Figure 3 The slider 32 is long and narrow, and it can be integrated with the long side 61 of the sliding frame. Moreover, the orientation of the linear guide rail can be adjusted to face upward or to the side as needed.

[0050] Figure 8 and Figure 9 This is a preferred example of a change in the power mechanism. Its basic structure is similar to the previous example, except that the driving method of the power mechanism 5 is changed. Depending on the space at the bottom of the massage chair frame, the power mechanism 5 can be set at the front of the base frame 1, or it can be set in the middle as in the previous example. The offset shaft 53 and the pin 622 are connected by a connecting rod 54.

[0051] Figure 10 and Figure 11 Another preferred example differs in the positioning method of the seat and backrest 1, which is rotatably hinged to the support column 34 at the rear of the base frame. The seat and backrest 1 can rotate around the hinge axis to adjust the angle, resulting in relatively high stability.

[0052] Figure 12 and Figure 13 This is also a preferred solution for positioning the seat frame 1. It uses a front swing arm 35 and a rear swing arm 36 for dynamic support, which not only satisfies the need for angle adjustment but also achieves the effect of synchronous forward movement.

Claims

1. A rocking massage chair frame, comprising: The set includes a seat and backrest (1), a leg support (2), a base frame (3), and a main electric push rod (4). The seat and backrest (1) is positioned above the base frame (3). Driven by the main electric push rod (4), the seat and backrest (1) can change its angle relative to the base frame (3) and complete the continuous change between sitting and lying postures. The leg support (2) is suspended at the front edge of the seat and backrest (1) and can move with the seat and backrest (1) and can be raised and lowered relative to the seat and backrest (1). The main electric push rod (4) is hinged at one end to the seat and backrest (1) and at the other end to a motion fulcrum. The motion fulcrum is driven and supported by a power mechanism (5) set on the base frame (3). The power mechanism (5) can drive the motion fulcrum to move back and forth in the front and back direction and drive the seat and backrest (1) to swing back and forth through the main electric push rod (4).

2. The rocking massage chair frame according to claim 1, characterized in that: A pair of linear guide rails (31) facing forward and backward are provided on the base frame (3). A sliding frame (6) is fixed between the sliders (32) of the two linear guide rails (31), and the sliding frame (6) constitutes the motion fulcrum. The sliding frame (6) has two long sides (61) correspondingly locked to the two sliders and at least one short side (62) connecting the two long sides. A lug for hinged main electric push rod (4) is provided on the short side (62), as well as a long slot (621) or pin (622) for power mechanism access. The mechanism (5) has the following two structures: First, the power mechanism (5) includes a motor (51) and a reduction gear (52) fixed on the base frame, as well as an offset shaft (53) output by the reduction gear (52). The offset shaft (53) slides through the long slot (621) or is connected to the pin (622) by a connecting rod (54); Second, the power mechanism (5) is a reciprocating electric push rod. One end of the reciprocating electric push rod is hinged to the base frame (3), and the other end is hinged to the short side (62) of the sliding frame.

3. The rocking massage chair frame according to claim 1, characterized in that: The power mechanism (5) includes a motor (51), a reduction gear (52) and a bias shaft (53) output by the reduction gear. The bias shaft (53) is used as a fulcrum to support and drive the main electric push rod (4).

4. A rocking massage chair frame according to claim 2 or 3, characterized in that: The offset shaft (53) has the following three options:

1. It is set at the eccentric position of the last gear of the reduction device (52); 2. It is set at the eccentric position of a turntable, which is locked on the shaft of the last gear of the reduction device (52); 3. It is a crank shaft on the last gear of the reduction device (52).

5. A rocking massage chair frame according to claim 1, 2 or 3, characterized in that: An arc-shaped guide groove (11) and two pairs of pulleys (33) are provided between the seat frame (1) and the base frame (3). The pulleys (33) roll in the arc-shaped guide groove (11) to form the seat frame (1) positioned above the base frame (3).

6. A rocking massage chair frame according to claim 1, 2 or 3, characterized in that: A pair of support columns (34) are provided at the rear of the base frame (3). The seat frame (1) is hinged to the upper part of the support columns (34) through a pivot, so that the seat frame (1) is positioned above the base frame (3).

7. A rocking massage chair frame according to claim 1, 2 or 3, characterized in that: The base frame (3) has a front swing rod (35) and a rear swing rod (36) hinged to the front and rear sides respectively. The upper ends of the front swing rod (35) and the rear swing rod (36) are respectively hinged to the seat frame (1), forming the seat frame (1) positioned above the base frame (3).

8. A rocking massage chair frame according to claim 1, characterized in that: The seat frame (1) includes two integrated L-shaped rails (12) and a crossbeam (13) connecting the two L-shaped rails (12). Two or more crossbeams (13) are distributed and welded between the two L-shaped rails (12). The seat frame (1) has a seat cushion (14) and a backrest (15). A swing rod (16) is hinged to the crossbeam (13) at the front edge of the seat cushion (14). The lower end of the swing rod (16) is provided with a contact wheel (17) that can abut against the back of the leg frame (2). One end of a leg electric push rod (41) is hinged to the middle of the swing rod (16) and the other end is hinged to the crossbeam (13) at the rear of the seat cushion (14), driving the leg frame (2) to rise.

9. A rocking massage chair frame according to claim 1, characterized in that: The base frame (3) is equipped with two ground-touching rollers (37) at the rear.

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