Massage device execution component safety collapse mechanism

Abstract

This invention discloses a safety collapse mechanism for the actuator of a massager, including a base, a swing arm rotatably mounted on the base, a massage component at the distal end of the swing arm, and a support component slidable relative to the base below the swing arm. A connecting rod is hinged to the support component, with its other end hinged to the middle of the swing arm. A thrust-stopping mechanism is provided on one side of the support component, including a limiting block abutting against the support component and a driving assembly driving the limiting block to move along the sliding direction of the support component. An elastic component is provided between the base and the support component, applying a force to cause the support component to abut against the limiting block. When the massage component is compressed by an external force, the support component can overcome the resistance of the elastic component and slide, causing the massage component to move towards the base. The beneficial effect of this invention is that in the event of a vehicle collision, the massage component can quickly retract from its ejected state, providing a high level of safety.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more specifically to a safety collapse mechanism for a massager actuator. Background Technology

[0002] For occupants who drive or ride for long periods, maintaining the same posture for extended periods can easily lead to physical fatigue and muscle stiffness. To address this fatigue issue, a car seat with a massage function has been developed.

[0003] Currently, most massage mechanisms for the lower back area in car seats use airbag massagers. However, airbag massagers have low intensity and poor massage effect, making it difficult to fully and deeply relax the user's body. To overcome these shortcomings, the applicant intends to develop a mechanical massage device that uses mechanical motion to massage the occupant's back for a better massage effect. However, when a mechanical massage device is in operation, a protruding massage component usually needs to be placed directly against the occupant's back or waist. In the event of a vehicle collision or other sudden accident, this protruding massage component could cause significant injury to the occupant, posing a certain safety hazard.

[0004] Therefore, improving the safety of using mechanical massage devices is a pressing technical challenge that needs to be addressed. Summary of the Invention

[0005] In view of this, the present invention provides a safety collapse mechanism for the massage actuator, which allows the massage actuator to quickly retract from the ejected state when a vehicle collision occurs, thereby improving massage safety.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A safety collapse mechanism for the actuator of a massager is characterized by comprising a base on which a swing arm is rotatably mounted. A massage component is provided at the distal end of the swing arm. A support component that can slide relative to the base is provided below the swing arm. A connecting rod is hinged to the support component. The other end of the connecting rod is hinged to the middle of the swing arm. The sliding of the support component can drive the swing arm to rotate via the connecting rod, so that the massage component moves away from or towards the base.

[0008] The support component is provided with a thrust-stopping mechanism on one side. The thrust-stopping mechanism includes a limiting block that abuts against the support component and a driving component that drives the limiting block to move along the sliding direction of the support component. An elastic component is provided between the base and the support component. The elastic component applies a force to make the support component abut against the limiting block. When the massage component is pressed by an external force, the support component can overcome the resistance of the elastic component and slide, so that the massage component moves toward the base.

[0009] With the above structure, when the massage component is not in use, the massage component and the swing arm are retracted into the backrest. When the user needs to use the massage component, the drive assembly drives the limiting block to move away from the support component. During this process, because the elastic component applies a force that keeps the support component against the limiting block, the support component can move synchronously with the limiting block. This allows the swing arm to rotate outward under the linkage of the connecting rod, enabling the massage component at the distal end of the swing arm to push forward towards the front of the backrest A and act on the occupant's lower back. After the massage ends, the drive assembly drives the limiting block to move closer to the support component. At this time, the limiting block pushes the support component to slide against the resistance of the elastic component, allowing the swing arm to rotate inward under the linkage of the connecting rod, causing the massage component to retract towards the base.

[0010] Preferably, the elastic component is a compression spring, which abuts against the support component and the end of the base. When the limiting block moves toward the compression spring, it can force the compression spring to store force through the support component. When the limiting block moves away from the support component, it can release the elastic potential energy of the compression spring. The thrust generated by the compression spring can make the support component move synchronously with the limiting block.

[0011] Preferably, the base is fixed with a slide rod extending along its height direction, and the elastic component, support component and limiting block are sequentially fitted onto the slide rod along the height direction, and the support component and limiting block can slide up and down relative to the slide rod.

[0012] Preferably, the slide bar is fixedly mounted on the base via a mounting bracket, one end of the elastic component is supported on the mounting bracket, and the other end abuts against the supporting component.

[0013] Preferably, the drive assembly includes a motor fixed on the base and a lead screw driven by the motor to rotate, with one end of the limiting block threaded onto the lead screw.

[0014] Preferably, the swing arm and the connecting rod are provided in two sets, the two sets of swing arms are symmetrically arranged along the width direction of the base, the number of sliding rods is two sets, the two ends of the support component and the two ends of the limiting block are respectively slidably sleeved with the two sets of sliding rods, and the lead screw is located between the two sets of sliding rods.

[0015] Preferably, the support member has a downwardly recessed relief groove in the middle, which is used to accommodate the lead screw.

[0016] Preferably, the support component has rollers on its lower side that slide in contact with the base.

[0017] Preferably, a synchronous shaft is rotatably connected to the support component. The synchronous shaft is arranged along the width direction of the base, and both ends of the synchronous shaft are provided with transition parts. One end of each of the two sets of connecting rods is respectively hinged to the two transition parts.

[0018] Preferably, the two sets of swing arms are rotatably mounted on the base at the ends away from the massage component via a pivot.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The massager actuator safety collapse mechanism provided by this invention uses a drive assembly to move a limiting block away from the supporting component. During this process, the elastic component applies a force that keeps the supporting component against the limiting block, allowing the supporting component to move synchronously with the limiting block. This, in turn, allows the swing arm to rotate outward under the linkage of the connecting rod, enabling the massage component at the distal end of the swing arm to push forward towards the backrest and act on the occupant's lower back. The drive assembly then moves the limiting block closer to the supporting component. At this time, the limiting block pushes the supporting component to overcome the resistance of the elastic component, allowing the swing arm to rotate inward under the linkage of the connecting rod, causing the massage component to retract towards the base. When the massage component is in operation, in the event of a vehicle collision or other sudden situation, if the massage component is subjected to external pressure, the supporting component can overcome the resistance of the elastic component, allowing the massage component to quickly retract towards the base, effectively preventing injury to the user and providing a high level of safety. When the external force disappears, the elastic component resets, automatically returning the swing arm and massage component to their original positions.

[0021] 2. The safety collapse mechanism of the massager's actuator provided by this invention not only allows the massage component to be retracted inside the backrest when not in use, preventing it from protruding and causing discomfort to the user's lower back, thus ensuring normal seating comfort, but also allows the massage component to be smoothly extended to protrude from the backrest when a massage is needed, through the coordinated action of the elastic component and the anti-push mechanism, to achieve the massage function. Furthermore, in the event of a collision, the massage component can be reversibly collapsed, improving massage safety. After collapse, the massage component is not damaged, saving costs and eliminating the hassle of replacing parts. Attached Figure Description

[0022] Figure 1 A schematic diagram of the safety collapse mechanism of the massager's actuator in the retracted state of the massager component 2a;

[0023] Figure 2 A schematic diagram of the safety collapse mechanism of the massager's actuator in the working state of the massager component 2a;

[0024] Figure 3Another structural schematic diagram of the safety collapse mechanism of the massager's actuator in the retracted state of the massager component 2a;

[0025] Figure 4 Another structural schematic diagram of the safety collapse mechanism of the massager's actuator in the working state of the massager component 2a;

[0026] Figure 5 A cross-sectional view of the safety collapse mechanism of the massager's actuator in the retracted state of the massager component 2a;

[0027] Figure 6 A cross-sectional view of the safety collapse mechanism of the massager actuator in the working state of the massager component 2a;

[0028] Figure 7 A schematic diagram illustrating the positional relationship between the support component 3, the thrust mechanism 5, and the elastic component 6;

[0029] Figure 8 A partially enlarged view showing the positional relationship between support component 3 and lead screw 52 (some components have been hidden);

[0030] Figure 9 This is a structural schematic diagram of the supporting component 3;

[0031] Figure 10 This is a schematic diagram of the structure of the limiting block 5a;

[0032] Figure 11 A reference diagram showing the usage state of a massager actuator safety collapse mechanism integrated into a car seat back A;

[0033] Figure 12 This is a sectional view of the rotating shaft 9. Detailed Implementation

[0034] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0035] like Figure 1 , 2As shown in Figure 6, a safety collapse mechanism for the actuator of a massager includes a base 1, a swing arm 2 rotatably mounted on the base 1, a massage component 2a at the distal end of the swing arm 2, and a support component 3 slidably relative to the base 1 below the swing arm 2. A connecting rod 4 is provided between the support component 3 and the swing arm 2, one end of the connecting rod 4 being hinged to the support component 3 and the other end hinged to the middle of the swing arm 2. Sliding of the support component 3 can drive the swing arm 2 to rotate via the connecting rod 4, causing the massage component 2a to move away from or towards the base 1. A thrust-stopping mechanism 5 is provided on one side of the support component 3, the thrust-stopping mechanism 5 including a limiting block 5a and a driving assembly 5b, wherein the limiting block 5a abuts against the support component 3, and the driving assembly 5b is used to drive the limiting block 5a to move along the sliding direction of the support component 3. An elastic component 6 is provided between the base 1 and the support component 3, the elastic component 6 applying a force that causes the support component 3 to continuously abut against the limiting block 5a. When the massage component 2a is pressed by an external force, under the coordinated transmission of the swing arm 2 and the connecting rod 4, the support component 3 can overcome the resistance of the elastic component 6 and slide, so that the massage component 2a moves toward the base 1.

[0036] refer to Figure 11 When the safety collapse mechanism of the massager's actuator is applied to a car seat, the base 1 is a plate-like structure, which is installed inside the seat back A, or is directly part of the backrest frame. In this embodiment, the orientation of the mechanism is described with reference to the car seat, that is, the height direction of the base 1 corresponds to the height direction of the car seat, and the width direction of the base 1 corresponds to the width direction of the car seat.

[0037] Based on the above structural design, the safety collapse mechanism of the massager's actuator is integrated into the seat back, and then... Figure 3 and 5 As shown, when the massage component 2a is not in use, the massage component 2a and the swing arm 2 are retracted into the backrest, meaning the massage component 2a is closer to the base 1. When the user needs to use the massage component 2a for massage, please refer to the attached diagram. Figure 4 and 6 As shown, the drive assembly 5b drives the limiting block 5a to move away from the support member 3. During this process, because the elastic member 6 applies a force that causes the support member 3 to continuously abut against the limiting block 5a, the support member 3 can move synchronously with the limiting block 5a. Thus, under the linkage of the connecting rod 4, it can drive the swing arm 2 to rotate outward, so that the massage member 2a at the distal end of the swing arm 2 can push forward towards the front of the backrest A (see reference). Figure 11The massage is applied to the occupant's lower back. After the massage ends, the drive component 5b drives the limiting block 5a to move closer to the support component 3. At this time, the limiting block 5a pushes the support component 3 to slide against the resistance of the elastic component 6, thereby enabling the swing arm 2 to rotate inward under the linkage of the linkage 4, causing the massage component 2a to retract towards the base 1. Therefore, through this structural design, not only is the massage component 2a retracted into the backrest when not in use, avoiding its protrusion from the backrest and causing discomfort to the user's lower back, ensuring normal seating comfort, but it also allows the massage component 2a to be smoothly unfolded to protrude from the backrest when a massage is needed, through the coordinated action of the elastic component 6 and the anti-push mechanism 5, to achieve the massage function.

[0038] In addition, based on this assembly method, the massage component 2a also has a passive collapse function in the working state. Specifically, when the massage component 2a is in operation, and a vehicle collision or other unexpected situation occurs, causing it to be compressed by external force, the support component 3 can overcome the resistance of the elastic component 6 and slide. Under the linkage of the connecting rod 4, it can quickly retract the massage component 2a towards the base 1, effectively preventing injury to the user and improving massage safety. When the external force disappears, the elastic component 6 resets, pushing the support component 3 to slide, thereby automatically returning the swing arm 2 and the massage component 2a to their working positions. This design protects the massage component 2a from damage, saves costs, eliminates the hassle of replacing parts, and has the advantage of good practicality.

[0039] Furthermore, the elastic component 6 can be a compression spring, tension spring, torsion spring, leaf spring, or sheet spring, etc. In this embodiment, the elastic component 6 is a compression spring. Please refer to... Figure 6 The compression spring rests between the support member 3 and the lower end of the base 1. The limiting block 5a moves downward along the height direction of the base 1, that is, moves towards the compression spring, which can push the support member 3 downward to compress the compression spring, so as to force the compression spring to store force. The downward movement of the support member 3 can drive the swing arm 2 to rotate towards the base 1 via the connecting rod 4 (see reference). Figure 5 When the limiting block 5a moves away from the supporting component 3, that is, moves upward, it releases the elastic potential energy of the compression spring. The thrust generated by the compression spring causes the supporting component 3 to move synchronously with the limiting block 5a, thereby driving the swing arm 2 to rotate outward via the connecting rod 4. In this state, when the massage component 2a is compressed by an external force, the supporting component 3 can squeeze the compression spring downward, thereby driving the swing arm 2 to quickly retract towards the base 1 via the connecting rod 4; when the external force disappears, the compression spring can release energy, pushing the supporting component 3 to move upward until the supporting component 3 abuts against the limiting block 5a. At this time, the swing arm 2 returns to the working position, and the massage component 2a is not damaged by the external force.

[0040] Revisit Figure 4A sliding rod 7 extending along its height is fixed on the base 1. The elastic component 6, the support component 3, and the limiting block 5a are sequentially fitted onto the sliding rod 7 from bottom to top, and the support component 3 and the limiting block 5a can slide up and down relative to the sliding rod 7. This design ensures the reliability of the installation and movement of the elastic component 6, the support component 3, and the limiting block 5a.

[0041] Depend on Figure 7 As can be seen, the slide bar 7 is fixedly mounted on the base 1 via the mounting seat 8, and one end of the elastic component 6 is supported on the mounting seat 8, while the other end abuts against the support component 3. This design facilitates installation.

[0042] like Figure 7 As shown, the drive assembly 5b includes a motor 51 fixed on the base 1 and a lead screw 52 driven by the motor 51 to rotate. The lead screw 52 extends along the height direction of the base 1, and one end of the limiting block 5a is threaded onto the lead screw 52. When the motor 51 drives the lead screw 52 to rotate, it can cause the limiting block 5a to move up and down along the lead screw 52.

[0043] Furthermore, for example Figure 1 and 3 As shown, in order to simultaneously massage the meridians on both sides of the spine, the massage component 2a has two sets, and the corresponding swing arms 2 and connecting rods 4 also have two sets. The two sets of swing arms 2 are symmetrically arranged along the width direction of the base 1. In this embodiment, the ends of the two sets of swing arms 2 away from the massage component 2a are rotatably mounted on the base 1 via the rotating shaft 9. The number of slide rods 7 and elastic components 6 are two sets, corresponding one-to-one with the two sets of swing arms 2. The two ends of the support component 3 and the two ends of the limiting block 5a are respectively slidably connected to the two sets of slide rods 7. The two connecting rods 4 are symmetrically arranged on the sides of the two sets of swing arms 2, and the lead screw 52 is arranged between the two sets of slide rods 7. The motor 51 drives the limiting block 5a to move downward, which can drive the support component 3 to simultaneously squeeze the two sets of elastic components 6, thereby simultaneously driving the two sets of swing arms 2 to retract inward, ensuring the synchronicity of the movement of the two sets of swing arms 2. At the same time, this layout can improve the compactness of the overall structure, allowing the mechanism to be better integrated and installed on the back of the car seat.

[0044] Combination Figure 7 and Figure 10 As shown, both ends of the limiting block 5a have first connecting holes 5a1, and the two first connecting holes 5a1 are slidably fitted onto the two sets of sliding rods 7 respectively. The limiting block 5a has a second connecting hole 5a2 in the middle, and the second connecting hole 5a2 is threaded onto the lead screw 52.

[0045] Please refer to Figure 8 and 9The support component 3 has sleeves 3c at both ends that are slidably fitted onto two sets of slide rods 7, and one end of the compression spring abuts against the corresponding sleeve 3c. The support component 3 has a downwardly recessed relief groove 3b in the middle, and the lead screw 52 is located above the relief groove 3b, which further improves the compactness of the structure.

[0046] Revisit Figure 8 The lower side of the support component 3 is provided with a roller 3a that slides in contact with the base 1. The roller 3a increases the smoothness of the support component 3 sliding on the base 1. On the other hand, in the event of a collision, the support component 3 can also smoothly compress the spring downward to ensure that the swing arm 2 can retract quickly.

[0047] like Figure 2 and Figure 4 As shown, a synchronous shaft 3c is rotatably connected to the support component 3. The synchronous shaft 3c is arranged along the width direction of the base 1. Both ends of the synchronous shaft 3c are provided with transition parts 3d. One end of each of the two sets of connecting rods 4 is hinged to the two transition parts 3d, and the other end is hinged to the middle of the corresponding swing arm 2. This design facilitates installation.

[0048] In practical applications, the massage component 2a can be an independent massage device or a massage actuator driven by the swing arm 2. (See reference...) Figure 1 , 11 Taking the massage component 2a as an example, two sets of annular grooves 91 are symmetrically arranged along the rotating shaft 9. The ends of the two swing arms 2 away from the massage component 2a are respectively rotatably fitted onto the two annular grooves 91. The side walls of each annular groove 91 are inclined relative to the center line of the rotating shaft 9. The base 1 is also provided with a drive mechanism for driving the rotating shaft 9 to rotate. When using the massage function, the drive component 5b drives the limiting block 5a to move away from the support component 3. The support component 3 can move synchronously with the limiting block 5a, so that under the linkage of the connecting rod 4, it can drive the two sets of swing arms 2 to rotate outward, so that the massage component 2a at the far end of the swing arm 2 can be pushed outward to the front of the backrest A and act on the user's back. Afterward, the drive mechanism drives the rotating shaft 9 to rotate, and under the transmission of the inclined side wall of the annular groove 91 and the constraint of the connecting rod 4, it forces the swing arm 2 to swing back and forth along the axis of the rotating shaft 9, so that the massage component 2a at the far end forms a reciprocating swinging kneading massage on the user's back.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A safety collapse mechanism for the actuator of a massager, characterized in that, Includes a base (1), on which a swing arm (2) is rotatably mounted. A massage component (2a) is provided at the distal end of the swing arm (2). A support component (3) that can slide relative to the base (1) is provided below the swing arm (2). A connecting rod (4) is hinged to the support component (3). The other end of the connecting rod (4) is hinged to the middle of the swing arm (2). The support component (3) slides and can drive the swing arm (2) to rotate via the connecting rod (4) so ​​that the massage component (2a) moves away from or closer to the base (1). The support member (3) is provided with a thrust-stopping mechanism (5) on one side. The thrust-stopping mechanism (5) includes a limiting block (5a) that abuts against the support member (3) and a driving component (5b) that drives the limiting block (5a) to move along the sliding direction of the support member (3). An elastic member (6) is provided between the base (1) and the support member (3). The elastic member (6) applies a force to make the support member (3) abut against the limiting block (5a). When the massage component (2a) is pressed by an external force, the support component (3) can overcome the resistance of the elastic component (6) to slide, so that the massage component (2a) moves toward the base (1).

2. The safety collapse mechanism for the actuating component of the massager according to claim 1, characterized in that: The elastic component (6) is a compression spring. The compression spring abuts against the end of the support component (3) and the base (1). The limiting block (5a) moves toward the compression spring, which can force the compression spring to store force through the support component (3). The limiting block (5a) moves away from the support component (3), which can release the elastic potential energy of the compression spring. The thrust generated by the compression spring can make the support component (3) move synchronously with the limiting block (5a).

3. The safety collapse mechanism for the actuating component of the massager according to claim 2, characterized in that: The base (1) is fixed with a slide rod (7) extending along its height direction. The elastic component (6), the support component (3) and the limiting block (5a) are sequentially fitted onto the slide rod (7) along the height direction, and the support component (3) and the limiting block (5a) can slide up and down relative to the slide rod (7).

4. The safety collapse mechanism for the actuating component of the massager according to claim 3, characterized in that: The slide bar (7) is fixedly mounted on the base (1) by the mounting seat (8), and one end of the elastic component (6) is supported on the mounting seat (8), while the other end abuts against the support component (3).

5. The safety collapse mechanism for the actuating component of the massager according to claim 3, characterized in that: The drive assembly (5b) includes a motor (51) fixed on the base (1) and a lead screw (52) driven to rotate by the motor (51), and one end of the limiting block (5a) is threaded onto the lead screw (52).

6. The safety collapse mechanism for the actuating component of the massager according to claim 5, characterized in that: The swing arm (2) and the connecting rod (4) are provided in two sets. The two sets of swing arms (2) are symmetrically arranged along the width direction of the base (1). The number of sliding rods (7) is two sets. The two ends of the support component (3) and the two ends of the limiting block (5a) are respectively slidably connected to the two sets of sliding rods (7). The lead screw (52) is located between the two sets of sliding rods (7).

7. The safety collapse mechanism for the actuating component of the massager according to claim 6, characterized in that: The support member (3) has a downwardly recessed relief groove (3b) in the middle, which is used to accommodate the lead screw (52).

8. The safety collapse mechanism for the actuating component of the massager according to claim 6, characterized in that: The support component (3) has a roller (3a) on its lower side that slides in contact with the base (1).

9. The safety collapse mechanism for the actuating component of the massager according to claim 6, characterized in that: A synchronous shaft (3c) is rotatably connected to the support component (3). The synchronous shaft (3c) is arranged along the width direction of the base (1). Both ends of the synchronous shaft (3c) are provided with adapters (3d). One end of each of the two sets of connecting rods (4) is hinged to the two adapters (3d).

10. The safety collapse mechanism for the actuating component of the massager according to claim 6, characterized in that: The two sets of swing arms (2) are rotatably mounted on the base (1) at the ends away from the massage component (2a) via a pivot (9).

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