Mechanical massaging device and car seat

Abstract

The application discloses a mechanical massage device and a car seat, and relates to the technical field of car seats, and comprises a mechanical massage device, a base body and a massage head assembly arranged on the base body; the massage head assembly comprises a driving shell, a massage head, a top disc, a rotating shaft and a first power unit; a plurality of guide holes are arranged on the driving shell in a circumferential direction; the massage head is arranged in the guide hole in an axial direction; the rotating shaft is arranged on the base body and is driven to rotate by the first power unit; an inclined disc is arranged on the rotating shaft; the top disc is arranged in the driving shell and is fixed in a circumferential direction; one side of the top disc is connected with the massage head through a ball head rod; and the other side of the top disc is abutted with the inclined disc. The car seat comprises the mechanical massage device, a seat body and a massage adjusting device; therefore, the problems existing in the massage of the traditional car seat are solved; the driving structure of the massager, the lifting mode of the massage head and the structural layout of the massager are optimized; the safety risk is reduced; and the riding body feeling is improved.

Description

Technical Field

[0001] This application relates to the field of automotive seat technology, and in particular to a mechanical massage device and an automotive seat. Background Technology

[0002] Most manufacturers of car seat massage products currently on the market use a rotating massage bump structure. Traditionally, mechanical massage typically uses air bags and tension springs to achieve the push-out or retraction function.

[0003] The traditional structure of existing mechanical massage has the following drawbacks:

[0004] 1. In the past, mechanical massage devices used an electric drive structure to move the massage points, generally in two types: rotary massage or kneading massage.

[0005] 2. Mechanical massage rotating structures or kneading massage mechanisms have certain problems, as the rotating action can cause damage to the car seat upholstery.

[0006] 3. Traditional mechanical massage products are rigid structures with rigid connections, posing certain safety risks during vehicle operation. For example, collision tests and related experiments may cause injury to passengers. In the event of a traffic accident, it may cause harm to the passenger. In addition, there is a foreign body sensation during the ride, which reduces the physical experience.

[0007] 4. Due to the limited design space of the seat back and the constraints of collision safety, how to integrate a massage device that can massage and knead the waist into the lumbar support structure to relieve the fatigue caused by prolonged sitting is also a question that the R&D designers have been thinking about.

[0008] 5. The function of pushing out or retracting is achieved through an air bag and a tension spring. This function has a slow lifting speed and a poor user experience.

[0009] Due to the limited space in the design of the seat back, the layout of massagers is very difficult, especially for massagers with adjustable massage head height. Therefore, how to optimize the drive structure of the massager, the lifting method of the massage head, and the structural layout of the massager are technical problems that relevant R&D companies urgently need to solve. Utility Model Content

[0010] To address the aforementioned problems, optimize the drive structure of the massager, the lifting method of the massage head, and the structural layout of the massager, reduce safety risks, and improve the riding experience, this application provides a mechanical massage device and a car seat.

[0011] The mechanical massage device and car seat provided in this application adopt the following technical solution.

[0012] A mechanical massage device includes: a base and a massage head assembly disposed on the base;

[0013] The massage head assembly includes a drive housing, a massage head, a top plate, a rotating shaft, and a first power unit. The drive housing has several guide holes distributed circumferentially. The massage head is slidably disposed in the guide holes along the axial direction of the holes. The rotating shaft is rotated on the base by the first power unit and has an inclined plate disposed on the rotating shaft. The top plate is disposed in the drive housing and is fixedly disposed circumferentially with the drive housing. One side of the top plate is connected to the massage head through a ball joint rod, and the other side of the top plate abuts against the inclined plate.

[0014] By adopting the above technical solution, the first power unit drives the rotating shaft to rotate. Utilizing the swashplate's structural design, the rotation of the swashplate drives the top plate to move, which in turn drives the massage head to move through the ball joint. This enables the massage head to move along the guide hole, and the massage head reciprocates back and forth, performing a reciprocating motion perpendicular to the human body, thus achieving the massage action.

[0015] Optionally, the base includes a driver cover consisting of a driver upper cover and a driver lower cover that are interlocked. The rotating shaft is rotatably mounted on the driver cover. The first power unit includes a first motor mounted inside the driver cover. The first motor drives the rotating shaft to rotate via gear transmission.

[0016] By adopting the above technical solution, the first motor is installed inside the driver cover, and the rotation of the rotating shaft is driven by gear transmission, which is a simple and reliable transmission method.

[0017] Optionally, the massage head assembly is provided with several spaced intervals.

[0018] By adopting the above technical solution, the massage head assembly has multiple components, which can increase the massage area and improve the massage effect.

[0019] Optionally, the head of the massage head is round and made of rubber.

[0020] By adopting the above technical solution, the head of the massage head is round and made of rubber, which helps to reduce the feeling of foreign objects and improves massage comfort.

[0021] Optionally, a bearing is provided between the swashplate and the top plate.

[0022] By adopting the above technical solution and by setting the bearings, the friction between the swashplate and the top plate can be reduced, thereby improving mechanical efficiency.

[0023] A car seat includes the mechanical massage device described above, and further includes: a seat body and a massage adjustment device;

[0024] The massage adjustment device includes a back base and a pull cable assembly disposed on the back base. The mechanical massage device is connected to the seat body through the back base and is moved along the direction of approaching or moving away from the seat body by the pull cable assembly.

[0025] By adopting the above technical solution, a mechanical massage device can be installed on the seat body to obtain a seat with massage function. Through the setting of the massage adjustment device, the mechanical massage device can be moved along the direction close to or away from the seat body, realizing the extension and retraction of the mechanical massage device. When in use, the mechanical massage device can extend to perform massage, and when not in use, the mechanical massage device can retract behind the seat surface to prevent people from feeling foreign objects and improve the comfort of sitting.

[0026] Optionally, the backrest base includes a supporting back panel and supporting steel wires, wherein the supporting back panel is connected to the seat body via the supporting steel wires.

[0027] By adopting the above technical solution, the support back panel is connected to the seat body through the support steel wire. The torsional deformation of the support steel wire can be used to achieve a flexible connection between the support back panel and the seat body. In other words, the mechanical massage device and the seat body are flexibly connected, which allows the mechanical installation device to move. This is beneficial for controlling the position of the mechanical massage device, reducing the feeling of foreign objects when sitting, and improving the riding experience.

[0028] Optionally, the backrest base includes a suspension frame, the suspension frame having several longitudinal bars and several transverse bars, and the transverse bars having several bends, the several longitudinal bars being spaced apart, the transverse bars being connected between the several longitudinal bars, and the longitudinal bars being connected to the seat body via connecting rods.

[0029] By adopting the above technical solution, the setting of the bending part on the crossbar is conducive to improving the bending toughness of the crossbar, allowing the suspension frame to undergo elastic deformation, realizing a flexible connection between the support back panel and the seat body. That is, the mechanical massage device and the seat body are flexibly connected, allowing the mechanical installation device to move, which is conducive to controlling the position of the mechanical massage device, reducing the feeling of foreign objects when sitting, and improving the riding experience.

[0030] Optionally, the cable assembly includes a cable housing, a cable, a cable sheath, and a second power unit. The cable housing contains a lead screw and a slider that cooperates with the lead screw. The lead screw is driven to rotate by the second power unit mounted on the cable housing. One end of the cable passes through the cable housing and is connected to the slider. Both ends of the cable sheath are connected to the cable housing and the backrest base, respectively. The other end of the cable passes through the cable sheath and is connected to the seat body, with the connection point located in front of the connection point between the cable sheath and the backrest base.

[0031] By adopting the above technical solution, through the screw-slider and lead screw screw cooperation, and through the second power unit driving the lead screw to rotate, the slider can slide and move inside the cable housing, thereby pulling one end of the cable, causing the other end of the cable to retract, increasing the distance between the connection point between the cable and the seat body, and the connection point between the cable sheath and the backrest base, causing the backrest base and the mechanical massage device to move relative to the seat body, moving towards the front of the seat body, thus pushing out the mechanical massage device and improving the massage experience for passengers.

[0032] Optionally, the pull wire shell is connected to the back base via a support rod, the support rod is bent and connected to the pull wire shell, and the end of the support rod is hinged to the back base.

[0033] By adopting the above technical solution, the cable housing and the back base are connected by a support rod, and the support rod and the back base are hinged. Therefore, relative movement between the cable housing and the back base is allowed, which reduces the impact of the cable housing on the seat body and reduces the foreign body sensation of passengers.

[0034] In summary, this application includes at least the following beneficial effects:

[0035] 1. The massage head of the mechanical massage device of this application moves back and forth, replacing the traditional rotary massage form. The massage form of this application can reduce damage to the seat cover, and each massage head can be replaced with a rubber head to reduce the feeling of foreign objects and improve the comfort of passengers.

[0036] 2. The car seat of this application uses a cable device to tighten or loosen to achieve the ejection or collapse of the mechanical massage device. The control action is simple and quick. When massage is not needed, it can collapse to reduce the feeling of foreign objects, improve the comfort of passengers, and enhance the riding experience.

[0037] 3. The backrest base itself is not a rigid structure. It has a stable connection function and a certain degree of toughness and deformation. Furthermore, the backrest base and the seat body (car seat) are not rigidly connected. This can reduce the harm to passengers in the event of a traffic accident during vehicle operation, reduce the feeling of foreign objects, and improve the riding experience. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1This is a schematic diagram of a mechanical massage device in Embodiment 1.

[0040] Figure 2 This is a schematic diagram of an explosion of a mechanical massage device in Embodiment 1.

[0041] Figure 3 This is a schematic diagram of the structure of a car seat (excluding the seat body) in Embodiment 2.

[0042] Figure 4 This is a schematic diagram of another view of the structure of a car seat (excluding the seat body) in Embodiment 2.

[0043] Figure 5 This is another perspective structural diagram of a car seat (excluding the seat body) in Embodiment 2.

[0044] Figure 6 This is a schematic diagram of the pull wire assembly structure in Embodiment 2.

[0045] Figure 7 This is a schematic diagram of the pull wire assembly in Embodiment 2.

[0046] Figure 8 This is a schematic diagram of the structure of a car seat (excluding the seat body) in Embodiment 3.

[0047] Figure 9 This is a schematic diagram of another view of the structure of a car seat (excluding the seat body) in Embodiment 3.

[0048] Figure 10 This is another perspective structural diagram of a car seat (excluding the seat body) in Embodiment 3.

[0049] Figure 11 This is a schematic diagram of the backrest structure (with some foam removed).

[0050] Figure 12 This is a structural diagram of the backrest (with some foam removed) from another perspective.

[0051] Figure 13 This is a schematic diagram of the structure of a car seat (excluding the seat cushion).

[0052] Explanation of reference numerals in the attached drawings: 1. Drive housing; 2. Massage head; 3. Top plate; 4. Rotating shaft; 5. First power unit; 6. Guide hole; 7. Swashplate; 8. Ball joint rod; 9. Bearing; 10. Upper cover of the drive unit; 11. Lower cover of the drive unit; 12. Seat body; 13. Support back panel; 14. Support wire; 15. Pull cable housing; 16. Pull cable; 17. Pull cable sheath; 18. Second power unit; 19. Lead screw; 20. Slider; 21. Support link; 22. Suspension frame; 23. Connecting rod. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] The following is in conjunction with the appendix Figures 1 to 13 This application will be described in further detail.

[0055] This application discloses a mechanical massage device and a car seat.

[0056] Example 1

[0057] Reference Figures 1 to 2 A mechanical massage device includes: a base and a massage head assembly.

[0058] The massage head assembly includes a drive housing 1, a massage head 2, a top plate 3, a rotating shaft 4, and a first power unit 5. The drive housing 1 has several guide holes 6 distributed circumferentially. The massage head 2 is slidably disposed within the guide holes 6 along the axial direction of the holes. The rotating shaft 4 is driven to rotate on the base by the first power unit 5, and a swashplate 7 is disposed on the rotating shaft 4. The top plate 3 is disposed within the drive housing 1 and is circumferentially fixed to the drive housing 1. One side of the top plate 3 is connected to the massage head 2 via a ball joint 8, or a universal joint can be used. The other side of the top plate 3 abuts against the swashplate 7. A bearing 9 is disposed between the swashplate 7 and the top plate 3; a thrust bearing can be used. The bearing 9 reduces friction between the swashplate 7 and the top plate 3, improving mechanical efficiency.

[0059] The first power unit 5 drives the rotating shaft 4 to rotate. Utilizing the structural design of the swashplate 7, the rotation of the swashplate 7 drives the top plate 3 to move, which in turn drives the massage head 2 to move through the ball joint rod 8. This enables the massage head 2 to move along the guide hole 6. The massage head 2 reciprocates back and forth, performing reciprocating motion perpendicular to the human body, thus achieving the massage action.

[0060] The head of massage head 2 is round and made of rubber, but it can also be made of plastic. The round head of massage head 2 and the use of rubber head help to reduce the feeling of foreign objects and improve massage comfort.

[0061] The base includes a driver cover consisting of a driver upper cover 10 and a driver lower cover 11 that are interlocked. The driver housing 1 is fastened to the driver upper cover 10 and connected by bolts. The rotating shaft 4 is rotatably mounted on the driver cover. The first power unit 5 includes a first motor mounted inside the driver cover. The first motor drives the rotating shaft 4 to rotate through gear transmission.

[0062] The first motor is installed inside the driver cover and drives the rotating shaft 4 to rotate through gear transmission. The transmission method is simple and reliable.

[0063] The massage head assemblies are spaced apart, and having multiple massage head assemblies can increase the massage area and improve the massage effect. This embodiment discloses two massage head assemblies, spaced apart on both sides of the driver cover, sharing a first power unit 5. The first motor can be a dual-head motor, meaning it has output shafts at both ends, and the two output shafts drive the rotating shaft 4 to rotate via gear transmission.

[0064] Example 2

[0065] Reference Figures 1 to 7 A car seat includes the mechanical massage device in Embodiment 1, and further includes: seat body 12 and massage adjustment device.

[0066] The seat body 12 is a typical car seat, including a seat cushion and a backrest, both of which contain soft padding, such as foam.

[0067] The massage adjustment device includes a back base and a pull cord assembly.

[0068] The mechanical massage device is connected to the backrest of the seat body 12 via a backrest base. The backrest base includes a supporting back panel 13 and supporting steel wires 14. The supporting back panel 13 is connected to the backrest of the seat body 12 via the supporting steel wires 14. The connection between the supporting back panel 13 and the backrest of the seat body 12 via the supporting steel wires 14 allows for a flexible connection between the supporting back panel 13 and the backrest of the seat body 12 through the torsional deformation of the supporting steel wires 14. This flexible connection allows the mechanical massage device to move, facilitating control over the position of the mechanical massage device, reducing the feeling of foreign objects in the seat, and improving the passenger experience.

[0069] The mechanical massage device in this embodiment differs from the mechanical massage device in Embodiment 1 in that this embodiment may not include a base, i.e., it does not include the driver cover consisting of the interlocking upper driver cover 10 and lower driver cover 11. The driver housings 1 in the two massage head assemblies are spaced apart and connected to the support back plate 13 by bolts. The two massage head assemblies share a first power unit 5. The first motor is located on one side of the support back plate 13 and drives the two rotating shafts 4 to rotate through gears and gear shaft transmission.

[0070] The cable assembly includes a cable housing 15, a cable 16, a cable sheath 17, and a second power unit 18. The cable housing 15 is equipped with a lead screw 19 and a slider 20 that cooperates with the lead screw 19. The lead screw 19 is driven to rotate by the second power unit 18, which is mounted on the cable housing 15. One end of the cable 16 passes through the cable housing 15 and is connected to the slider 20. Both ends of the cable sheath 17 are connected to the cable housing 15 and the backrest base, respectively. The other end of the cable 16 passes through the cable sheath 17 and is connected to the backrest of the seat body 12. The connection point is located in front of the connection point between the cable sheath 17 and the backrest base. By engaging the slider 20 with the lead screw 19, and rotating the lead screw 19 via the second power unit 18, the slider 20 can slide within the cable housing 15. This allows one end of the cable 16 to be pulled, causing the other end of the cable 16 to retract. This increases the distance between the cable 16 and the backrest connection point of the seat body 12, and between the cable sheath 17 and the backrest base. The cable assembly acts as a drive system, causing the backrest base and the mechanical massage device to move relative to the backrest (i.e., the backrest surface) of the seat body 12, towards the front of the backrest of the seat body 12. This causes the mechanical massage device to extend, improving the massage experience for passengers.

[0071] This embodiment discloses a lead screw drive, but a planetary gear drive can also be used. Its function is the same as that of the lead screw drive, which is used to tighten or loosen the cable 16. Further details will not be provided here.

[0072] There are two sets of pull cables 16 and pull cable sheaths 17. The two sets of pull cables 16 are connected to the two sides of the backrest of the seat body 12 respectively. Both sides of the backrest base can be pulled by the pull cable assembly and move towards the front of the backrest of the seat body 12 to avoid uneven front and back positions on both sides, which would affect the massage experience.

[0073] The pull-wire housing 15 is connected to the back base via a support rod 21. The support rod 21 is bent and connected to the pull-wire housing 15. The end of the support rod 21 is hinged to the back base.

[0074] The cable housing 15 is connected to the back base via a support rod 21, and the support rod 21 is hinged to the back base. Therefore, relative movement is allowed between the cable housing 15 and the back base, reducing the impact of the cable housing 15 on the seat body 12 and reducing the feeling of foreign objects for passengers.

[0075] By installing the mechanical massage device on the seat body 12, a seat with massage function can be obtained. Through the setting of the massage adjustment device, the mechanical massage device can be moved along the direction of approaching or moving away from the seat body 12 (i.e., the backrest and seat surface), realizing the extension and retraction of the mechanical massage device. When in use, the mechanical massage device can squeeze the foam to extend and massage. When not in use, the mechanical massage device can retract behind the seat surface to prevent people from feeling foreign objects and improve the comfort of sitting.

[0076] Example 3

[0077] Reference Figures 8 to 13 A car seat, including all the contents of Embodiment 2, except that the supporting back panel 13 is smaller in size and can only install massage head assembly. The back base also includes a suspension frame 22, which has three longitudinal bars and several transverse bars. The transverse bars are provided with several bends. The three longitudinal bars are spaced apart. The middle longitudinal bar is shorter. The transverse bars are connected laterally between the three longitudinal bars. The longitudinal bars are connected to the seat body 12 through connecting rods 23. The end of the connecting rods 23 is hook-shaped and can be connected to the backrest of the seat body 12.

[0078] The bend in the crossbar improves its bending toughness, allowing the suspension frame 22 to undergo elastic deformation and achieve a flexible connection between the backrest 13 and the seat body 12. This means that the mechanical massage device and the seat body 12 are flexibly connected, allowing the mechanical installation device to move. This facilitates control over the position of the mechanical massage device, reduces the feeling of foreign objects in the seat, and improves the passenger experience.

[0079] In the description of this utility model, it should be understood that the terms "one side," "the other side," "front," "rear," "one end," "the other end," and "end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the term "connection" should be interpreted broadly. For example, it can refer to a mechanical connection or an electrical connection, or the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0080] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A mechanical massage device, characterized in that, include: The substrate and the massage head assembly mounted on the substrate; The massage head assembly includes a drive housing, a massage head, a top plate, a rotating shaft, and a first power unit. The drive housing has several guide holes distributed circumferentially. The massage head is slidably disposed in the guide holes along the axial direction of the holes. The rotating shaft is rotated on the base by the first power unit and has an inclined plate disposed on the rotating shaft. The top plate is disposed in the drive housing and is fixedly disposed circumferentially with the drive housing. One side of the top plate is connected to the massage head through a ball joint rod, and the other side of the top plate abuts against the inclined plate.

2. The mechanical massage device according to claim 1, characterized in that, The base includes a driver cover consisting of a driver upper cover and a driver lower cover that are interlocked. The rotating shaft is rotatably mounted on the driver cover. The first power unit includes a first motor disposed inside the driver cover. The first motor drives the rotating shaft to rotate through gear transmission.

3. The mechanical massage device according to claim 1, characterized in that, The massage head assembly is spaced out in several portions.

4. A mechanical massage device according to claim 1, characterized in that, The massage head has a rounded tip and is made of rubber.

5. A mechanical massage device according to claim 1, characterized in that, A bearing is provided between the swash plate and the top plate.

6. A car seat, characterized in that, The mechanical massage device as described in any one of claims 1-5 further includes: a seat body and a massage adjustment device; The massage adjustment device includes a back base and a pull cable assembly disposed on the back base. The mechanical massage device is connected to the seat body through the back base and is moved along the direction of approaching or moving away from the seat body by the pull cable assembly.

7. A car seat according to claim 6, characterized in that, The backrest base includes a support back panel and support wires, and the support back panel is connected to the seat body through the support wires.

8. A car seat according to claim 6, characterized in that, The backrest base includes a suspension frame, which has several longitudinal bars and several transverse bars. The transverse bars are provided with several bends. The longitudinal bars are spaced apart, and the transverse bars are connected between the longitudinal bars. The longitudinal bars are connected to the seat body through connecting rods.

9. A car seat according to claim 6, characterized in that, The cable assembly includes a cable housing, a cable, a cable sheath, and a second power unit. The cable housing contains a lead screw and a slider that cooperates with the lead screw. The lead screw is driven to rotate by the second power unit mounted on the cable housing. One end of the cable passes through the cable housing and connects to the slider. Both ends of the cable sheath are connected to the cable housing and the backrest base, respectively. The other end of the cable passes through the cable sheath and connects to the seat body, with the connection point located in front of the connection point between the cable sheath and the backrest base.

10. A car seat according to claim 9, characterized in that, The pull wire shell is connected to the back base via a support rod. The support rod is bent and connected to the pull wire shell. The end of the support rod is hinged to the back base.

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