Kneading massage device and car seat with kneading massage device

Abstract

We provide a kneading massage device and an automobile seat equipped with a kneading massage device. [Solution] A kneading massage device and a car seat equipped with a kneading massage device are provided, comprising a massager base, a rotating shaft B1 and a first drive mechanism that drives the rotating shaft to rotate the massager base rotatably installed, a kneading rod B2 connected to the rotating shaft, a massage head B3 attached to one end of the kneading rod away from the rotating shaft, an annular groove provided on the rotating shaft, one end of the kneading rod rotatably fitted into this annular groove, and when the massage head receives resistance from the seat cover or the user's back, the first drive mechanism drives the rotating shaft to rotate, thereby forcibly causing the kneading rod to reciprocate along the axial direction of the rotating shaft under the transmission of motion by the inclined side walls of the annular groove, so that the massage head at the far end can knead and massage the user's back.

Claims

1. The device comprises a massager base (B), a rotating shaft (B1) and a first drive mechanism (C) that drives the rotating shaft (B1) to rotate are rotatably mounted on the massager base (B), a kneading rod (B2) is connected to the rotating shaft (B1), a massage head (B3) is attached to one end of the kneading rod (B2) that is separated from the rotating shaft (B1), and an annular groove (B11) is provided on the rotating shaft (B1). One end of the kneading rod (B2) is rotatably fitted into the annular groove (B11), both side walls of the annular groove (B11) are arranged to be inclined with respect to the centerline of the rotation axis (B1), and both sides of the end of the kneading rod (B2) that is close to the rotation axis (B1) are slidably in contact with the side walls of the annular groove (B11). When the massage head (B3) receives resistance from the seat cover or the user's back, the first drive mechanism (C) drives the rotating shaft (B1) to rotate, and under the transmission of motion by the inclined side walls of the annular groove (B11), the kneading rod (B2) is forcibly reciprocated along the axial direction of the rotating shaft (B1), so that the massage head (B3) at the far end can knead and massage the user's back. A kneading massage device characterized in that two sets of kneading rods (B2) are connected to the rotating shaft (B1).

2. The kneading massage device according to claim 1, characterized in that the rotating shaft (B1) comprises a central shaft (B12) and a sleeve (B13) fixedly fitted to the central shaft (B12), the annular groove (B11) is formed in the sleeve (B13), one end of the kneading rod (B2) has an annular sleeve hole (B21) that fits into the annular groove (B11), and the annular sleeve hole (B21) is rotatably fitted into the annular groove (B11).

3. The kneading massage device according to claim 1, characterized in that the massager base (B) is provided with a second drive mechanism (D), which is used to drive the kneading rod (B2) to rotate relative to the annular groove (B11), thereby allowing the massage head (B3) to move away from or approach the massager base (B).

4. The kneading massage device according to claim 3, characterized in that the second drive mechanism (D) comprises a slider (D4) slidably mounted on the massager base (B), and a thrust assembly for controlling the sliding of the slider (D4), the kneading rod (B2) and the slider (D4) are connected via a retaining rod (D5), both ends of the retaining rod (D5) are hinged to the kneading rod (B2) and the slider (D4), the retaining rod (D5) and the kneading rod (B2) are connected by a ball joint, and the sliding of the slider (D4) causes the kneading rod (B2) to be rotated in conjunction with the annular groove (B11) via the retaining rod (D5).

5. The kneading massage device according to claim 4, wherein the thrust assembly comprises a position limiting block (D2) that abuts against the slider (D4), and a drive member (D3) that drives the position limiting block (D2) to move along the sliding direction of the slider (D4), an elastic member (D1) is provided between the massager base (B) and the slider (D4), a force is applied to the elastic member (D1) that causes the slider (D4) to abut against the position limiting block (D2), and when the massage head (B3) is subjected to an external force and compressed, the slider (D4) overcomes the resistance of the elastic member (D1) and slides, thereby causing the massage head (B3) to move toward the massager base (B).

6. The kneading massage device according to claim 5, characterized in that the elastic member (D1) is a compression spring, the compression spring is abutted between the slider (D4) and the end of the massager base (B), the position limiting block (D2) moves toward the compression spring so that energy can be forcibly stored in the compression spring via the slider (D4), the position limiting block (D2) moves toward the slider (D4) so ​​that the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can move the slider (D4) in synchronous motion with the position limiting block (D2).

7. The kneading massage device according to claim 5, wherein a guide rod (D6) extending along its height direction is fixed to the massage device base (B), the elastic member (D1), the slider (D4), and the position limiting block (D2) are fitted sequentially onto the guide rod (D6) along the height direction, and the slider (D4) and the position limiting block (D2) can slide up and down relative to the guide rod (D6).

8. The kneading massage device according to claim 1, characterized in that the massage device base (B) comprises a mounting base plate (1) for assembly inside the backrest of a seat, and a sliding base (2) slidably connected to the mounting base plate (1), the sliding base (2) slides along the height direction of the mounting base plate (1), the rotating shaft (B1) and the first drive mechanism (C) are installed on the sliding base (2), and a third drive mechanism (E) is provided on the mounting base plate (1), the third drive mechanism (E) is used to drive the sliding base (2) to slide along the height direction of the mounting base plate (1).

9. The kneading massage device according to claim 8, wherein the third drive mechanism (E) comprises a linear drive unit (E1) installed at one end in the width direction of the mounting base plate (1) and a guide assembly (E2) installed at the other end, the linear drive unit (E1) is used to drive the slide base (2) to move up and down, and the guide assembly (E2) is used to guide and support the up and down movement of the slide base (2).

10. An automobile seat equipped with a backrest (A), characterized in that a kneading massage device according to any one of claims 1 to 9 is integrally mounted inside the backrest (A).

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