Adaptive Collapse Support Structure for Car Seat Shoulder Massage Module

Abstract

This invention discloses an adaptive collapsible support structure for a car seat shoulder massage module, including a seat back and a shoulder rest rotatably mounted at the shoulder position of the seat back. An elastic element is provided between the shoulder rest and the seat back, applying a thrust that causes the shoulder rest to flip forward relative to the seat back. A drive mechanism is provided between the shoulder rest and the seat back, actively controlling the shoulder rest to overcome the resistance of the elastic element and rotate backward. When the shoulder rest is in the forward-extended state, the thrust from the occupant's shoulder forces the shoulder rest to passively rotate backward over the resistance of the elastic element. The beneficial effects are: the thrust applied to the shoulder rest by the elastic element causes it to flip forward, thus adapting to the shoulder rest needs of occupants of different body types; the backward thrust from the occupant causes the shoulder rest to collapse backward, thereby reducing the impact force on the occupant during a car collision and ensuring occupant safety.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more specifically to an adaptive collapsible support structure for an automotive seat shoulder massage module. Background Technology

[0002] In today's society, cars are one of the most important means of transportation. As people's living standards improve, they have higher expectations for the comfort of car interiors. Passengers, in particular, are prone to fatigue and discomfort from maintaining the same posture for extended periods during long journeys.

[0003] Car seats with shoulder massage functions are one of the products designed to ensure passenger comfort. In the current technology, although the shoulder massage seats on the market can massage the passenger's shoulders, most of the shoulder massage devices are fixedly installed, which cannot meet the needs of passengers of different body types. Although a small number of shoulder massage devices are mounted on the seat back by a synchronizer and controlled by an electric adjuster to accommodate different body types, the entire adjustment component lacks a collapse function. When the car is subjected to a rearward impact, the entire shoulder massage device cannot collapse backward in time, thus putting a load on the passenger's shoulders and posing a great safety hazard. Summary of the Invention

[0004] In view of this, the present invention provides an adaptive collapsible support structure for a car seat shoulder massage module, which aims to improve the safety of the shoulder massage device.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An adaptive collapsible support structure for a car seat shoulder massage module includes a seat back and a shoulder rest rotatably mounted on the shoulder position of the seat back. The structure is characterized by: an elastic element between the shoulder rest and the seat back, the elastic element applying a thrust that causes the shoulder rest to rotate forward relative to the seat back; a drive mechanism between the shoulder rest and the seat back, the drive mechanism being used to actively control the shoulder rest to rotate and fold backward against the resistance of the elastic element; and when the shoulder rest is in the forward-extended state, the thrust from the occupant's shoulder can force the shoulder rest to passively rotate and fold backward against the resistance of the elastic element.

[0007] With the above structure, the drive mechanism allows the shoulder support to be in a folded state. When the drive mechanism is running, it can release the thrust applied to the shoulder support by the elastic element, so that the shoulder support can be flipped forward to adapt to the shoulder support needs of occupants of different body sizes. The occupant's backward thrust can also cause the shoulder support to collapse backward, thereby reducing the impact force on the occupant during a car collision and ensuring the safety of the occupant.

[0008] Preferably, the shoulder support is fixedly connected to a rearward-extending swing arm, the elastic element is supported between the swing arm and the seat back, and the drive mechanism can pull the shoulder support to rotate rearward via the swing arm. With this structure, the rotation of the shoulder support is more easily controlled through the connection between the drive mechanism and the swing arm.

[0009] Preferably, the distal end of the swing arm has an upward-facing groove, and the driving mechanism includes a first rotary motor fixedly mounted on the back of the seat. The output end of the first rotary motor is connected to a first lead screw, which is arranged along the height direction of the seat back. A first slider is threaded onto the first lead screw, and the first slider has a limiting post located within the groove. When the shoulder support is in the forward-opening state, the thrust from the occupant's shoulder can force the groove to move downward and separate from the limiting post. With the above structure, when the first slider moves upward along the first lead screw, it can release the pressure on the elastic element, thereby causing the elastic element to push the shoulder support to rotate forward. When the shoulder support is in the forward-opening state, the thrust from the occupant's shoulder can cause the groove to actively move downward and disengage from the limiting post, thus forming a collapse.

[0010] Preferably, the elastic element is a pneumatic spring, with its two ends hinged to the swing arm and the first rotary motor, respectively. This structure ensures that the elastic element can stably apply a forward rotational force to the shoulder rest, while also providing cushioning when the shoulder rest collapses, further ensuring occupant safety.

[0011] Preferably, the swing arm has a slotted hole extending along the thickness direction of the seat back. The drive mechanism includes a second rotary motor rotatably mounted at the rear end of the seat back. The output end of the second rotary motor is connected to a second lead screw, which is arranged along the thickness direction of the seat back. A second slider is threaded onto the second lead screw, and the second slider has a pin disposed within the slotted hole. When the shoulder support is in the forward-opening state, the thrust from the occupant's shoulder forces the slotted hole to move backward relative to the pin. With this structure, when the second slider moves forward along the second lead screw, it releases the pressure applied to the elastic element, causing the elastic element to push the shoulder support forward. Simultaneously, the second rotary motor rotates backward around the pivot. When the shoulder support is in the forward-opening state, the thrust from the occupant's shoulder causes the slotted hole to move backward relative to the pin, i.e., the second slider is forced to move from the rightmost end of the slotted hole to the leftmost end, thus creating a collapse.

[0012] Preferably, the elastic element is a spring, the swing arm has a downwardly extending mounting protrusion, the lower end of the spring abuts against the seat back, and the upper end is always fitted onto the mounting protrusion. This structure allows the elastic element to continuously apply a forward rotational thrust to the shoulder support, while also providing cushioning when the shoulder support collapses, further ensuring occupant safety.

[0013] Preferably, the shoulder support integrates a massage component. This structure allows for shoulder massage, relieving shoulder fatigue in the occupant.

[0014] Preferably, the drive mechanism consists of two sets, symmetrically distributed on the left and right sides of the seat back, and connected by a connecting plate. The lower ends of the shoulder support are rotatably mounted on both ends of the connecting plate. This structure allows for more stable rotation of the shoulder support.

[0015] Preferably, a lifting assembly is provided between the seat back and the shoulder support. This lifting assembly drives the shoulder support to move up and down relative to the seat back. The lifting assembly includes a lifting motor located at the center of the seat back. A third lead screw is provided at the output end of the lifting motor, and the third lead screw is arranged along the length of the seat back. The connecting plate is threadedly fitted with the third lead screw at its center. This structure enables height adjustment of the shoulder support.

[0016] Preferably, the drive mechanism is mounted on the connecting plate. This structure ensures that the forward / backward rotation and up / down adjustment of the shoulder support do not interfere with each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The adaptive collapsible support structure of the car seat shoulder massage module provided by this invention, through the set drive mechanism, enables the shoulder support to be in a folded state. When the drive mechanism is running, it can release the thrust applied to the shoulder support by the elastic element, so that the shoulder support can be flipped forward to adapt to the shoulder support needs of passengers of different body sizes. The backward thrust of the passenger can cause the shoulder support to actively collapse backward, thereby reducing the impact force on the passenger during a car collision and ensuring the safety of the passenger.

[0019] 2. The lifting components allow the shoulder support to also have a height adjustment function, further ensuring the needs of passengers of different body types.

[0020] 3. Two crumple zones are designed, and each crumple zone is equipped with an elastic element, which can ensure that the shoulder support can slowly rotate backward when the car is in a collision, thereby providing a cushioning effect for the occupants, and also ensuring the service life of each lead screw. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the first type of car seat (front view).

[0022] Figure 2 for Figure 1 Cross-sectional view of shoulder support 2 in its folded state (headrest is hidden);

[0023] Figure 3 for Figure 1 Cross-sectional view of shoulder support 2 in forward rotation state (headrest is hidden);

[0024] Figure 4 for Figure 1 Cross-sectional view of shoulder support 2 in a collapsed state (headrest is hidden);

[0025] Figure 5 This is a structural schematic diagram of the second type of car seat (front view).

[0026] Figure 6 for Figure 5 Cross-sectional view of shoulder support 2 in its folded-down state;

[0027] Figure 7 for Figure 5 Cross-sectional view of shoulder support 2 in a forward-rotated state;

[0028] Figure 8 for Figure 7 Cross-sectional view of shoulder support 2 in the raised state;

[0029] Figure 9 for Figure 8 Cross-sectional view of shoulder support 2 in a collapsed state;

[0030] Figure 10 for Figure 6 A magnified view of a portion of the image;

[0031] Figure 11 This is a reference image showing the actual usage state of the shoulder support 2 when folded up;

[0032] Figure 12 This is a reference diagram showing the actual usage state of the shoulder support 2 when it is raised upwards and rotated forward. Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0034] like Figures 1 to 9As shown, an adaptive collapsible support structure for a car seat shoulder massage module includes a seat back 1 and a shoulder rest 2 rotatably mounted on the shoulder position of the seat back 1. In this embodiment, the shoulder rest 2 integrates a massage component to relieve shoulder fatigue of the occupant. An elastic element 3 is installed between the shoulder rest 2 and the seat back 1. The elastic element 3 applies a thrust that causes the shoulder rest 2 to flip forward relative to the seat back 1. A drive mechanism A is also provided between the shoulder rest 2 and the seat back 1. The drive mechanism A is used to actively control the shoulder rest 2 to rotate and fold backward against the resistance of the elastic element 3. When the shoulder rest 2 is in the forward-extended state, the thrust from the occupant's shoulder can force the shoulder rest 2 to passively rotate and fold backward against the resistance of the elastic element 3.

[0035] Drive mechanism A keeps shoulder support 2 in the folded state. At this time, elastic element 3 is compressed and stores energy. When drive mechanism A is running, it can release the thrust of elastic element 3 on shoulder support 2, so that shoulder support 2 can rotate forward to meet the needs of passengers of different body sizes. When shoulder support 2 is in the forward-extended state, the thrust of the passenger's shoulder can make shoulder support 2 overcome the resistance of elastic element 3 and rotate backward to fold. It can be passively collapsed by external force. When the car is in a collision, it can reduce the impact force on the passenger and thus ensure the safety of the passenger.

[0036] In this embodiment, the shoulder support 2 is fixedly connected to a rearward-extending swing arm 4, and the elastic element 3 is supported between the swing arm 4 and the seat back 1. The drive mechanism A can pull the shoulder support 2 to move backward through the swing arm 4.

[0037] Specifically, the present invention provides the following two different connection methods for the rotating component A and the swing arm 4.

[0038] Example 1:

[0039] like Figures 2 to 4 As shown, the end of the swing arm 4 away from the shoulder support has a groove 4a formed, with the groove 4a facing upwards. The drive mechanism A includes a first rotary motor 5 fixedly installed at the rear end of the seat back 1. The output end of the first rotary motor 5 is connected to a first lead screw 6, which is arranged along the fixed direction of the seat back 1. A first slider 7 is threaded onto the first lead screw 6, and the first slider 7 has a limiting post 7a located within the groove 4a. Figure 2 and Figure 3When the shoulder support 2 is in the folded state, the first slider 7 is located at the bottom end of the first lead screw 6, and the limiting post 7a is supported in the groove 4a. When the first rotary motor 5 runs and drives the first slider 7 to move upward along the first lead screw 6, it can release the pushing force of the elastic element 3 on the shoulder support 2, allowing the shoulder support 2 to rotate forward to meet the needs of different body types. During the upward movement of the first slider 7, the limiting post 7a remains in the groove 4a. When the shoulder support 2 needs to rotate backward to fold, the first slider 7 moves downward and presses the swing arm 4 to overcome the pushing force of the elastic element 3 and move downward. Figure 4 When the shoulder support 2 is in the forward-extended state, the thrust from the occupant's shoulder can force the groove 4a to move downward and separate from the limiting post 7a, so that the shoulder support 2 collapses and folds backward. At the same time, during the collapse process, the first lead screw 6 is not affected by the downward collapse force, thereby ensuring the service life of the first lead screw 6.

[0040] In this embodiment, the elastic element 3 is a pneumatic spring, with its two ends rotatably connected to the middle position of the swing arm 4 and the base of the first rotary motor 5, respectively. This ensures that the elastic element 3 stably applies an upward thrust to the swing arm 4, allowing the shoulder support 2 to rotate forward. At the same time, the elastic element 3 also acts as a buffer when the shoulder support 2 collapses backward, further reducing the impact force on the occupant's shoulder and ensuring the occupant's safety.

[0041] In this embodiment, two sets of drive mechanisms A are provided, symmetrically distributed on the left and right sides of the seat back 1, and connected to each other by a connecting plate 11. The lower ends of the shoulder support 2 are rotatably mounted on both ends of the connecting plate 11. The design of two sets of drive mechanisms A makes the rotation of the shoulder support 2 more stable.

[0042] like Figure 1 , Figure 11 and Figure 12 As shown, a lifting assembly B is also installed between the seat back 1 and the shoulder support 2. The lifting assembly B is used to drive the shoulder support 2 to move up and down relative to the seat back 1. The lifting assembly B includes a lifting motor 12. In this embodiment, the lifting motor 12 is fixedly installed in the middle of the seat back 1. The output end of the lifting motor 12 is connected to a third lead screw 13. The third lead screw 13 is arranged along the length of the seat back 1, and the middle of the connecting plate 11 is threadedly assembled with the third lead screw 13. This design enables the height adjustment of the shoulder support 2, further adapting to the needs of passengers of different body types.

[0043] Meanwhile, the first rotary motor 5 is fixedly mounted on the connecting plate 13 to ensure that the forward and backward rotation and height adjustment of the shoulder support 2 do not interfere with each other.

[0044] Example 2:

[0045] like Figures 6 to 10 As shown, the swing arm 4 has a strip-shaped hole 4b formed on it, which extends along the thickness direction of the seat back 1. The drive mechanism A includes a second rotary motor 8 rotatably disposed at the rear end of the seat back 1. The output end of the second rotary motor 8 is connected to a second lead screw 9, which is arranged along the thickness direction of the seat back 1. A second slider 10 is threaded onto the second lead screw 9, and the second slider 10 has a pin 10a disposed within the strip-shaped hole 4b. Figure 6 and Figure 7 When the shoulder support 2 is in the folded state, the second slider 10 is located at the rear end of the strip hole 4b, that is... Figure 6 At the rightmost end, when the second rotary motor 8 operates and drives the second slider 10 to move forward along the second lead screw 9, the drive mechanism A releases the thrust of the elastic element 3 on the shoulder support 2, thereby pushing the shoulder support 2 to rotate forward to accommodate the needs of passengers of different body types. At the same time, the second rotary motor 8 rotates towards the rear of the seat back 1 to ensure that no motion interference occurs. Throughout the process, the second slider 10 is always located at the rear end of the strip hole 4b, i.e. Figure 7 Locked state. Combined with... Figure 9 When the shoulder support 2 is in the forward-extended state, the thrust from the occupant's shoulder can force the strip hole 4b to move toward the second slider 10, that is... Figure 9 As shown, the shoulder support 2 is in a fully collapsed and folded state, the second slider 10 is located at the front end of the strip hole 4b, and the position of the second slider 10 on the second lead screw 9 remains unchanged. This ensures that the drive mechanism A is not affected during the entire collapse process, thereby ensuring the service life of the second lead screw 9.

[0046] In this embodiment, the elastic element 3 is a spring and is arranged along the length of the seat back 1. The swing arm 4 has a downwardly extending mounting protrusion 4c. The lower end of the spring is fixed against the car seat, and the upper end is always fitted onto the mounting protrusion 4c. This design can stably apply an upward thrust to the swing arm 4, thereby allowing the shoulder support 2 to rotate forward. At the same time, when the shoulder support 2 collapses backward, the elastic element 3 can further buffer the impact force on the occupant's shoulder, thereby ensuring the occupant's riding safety.

[0047] like Figure 5 As shown, in this embodiment, there are also two sets of drive mechanisms A, which are symmetrically distributed on the left and right sides of the seat back 1. The two sets of drive mechanisms A are also connected by a connecting plate 11. The middle part of the connecting plate 11 is threadedly assembled with the third lead screw 13, so as to ensure that the shoulder support 2 has both forward and backward rotation and height adjustment functions.

[0048] Meanwhile, the second rotary motor 8 and the elastic element 3 are both fixedly installed on the connecting plate 13 to ensure that there is no motion interference between the drive mechanism A and the lifting assembly B.

[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. An adaptive collapsible support structure for a car seat shoulder massage module, comprising a seat back (1) and a shoulder rest (2) rotatably mounted at the shoulder position of the seat back (1), characterized in that: An elastic element (3) is provided between the shoulder support (2) and the seat back (1). The elastic element (3) applies a thrust that causes the shoulder support (2) to flip forward relative to the seat back (1). A drive mechanism (A) is provided between the shoulder support (2) and the seat back (1). The drive mechanism (A) is used to actively control the shoulder support (2) to rotate and fold backward against the resistance of the elastic element (3). When the shoulder support (2) is in the forward-extended state, the thrust from the occupant's shoulder can force the shoulder support (2) to overcome the resistance of the elastic element (3) and passively rotate and fold backward; The shoulder support (2) is fixedly connected to a rearward-extending swing arm (4), the elastic element (3) is supported between the swing arm (4) and the seat back (1), and the drive mechanism (A) can pull the shoulder support (2) to rotate backward through the swing arm (4); The swing arm (4) has an upward-facing groove (4a) at its far end. The drive mechanism (A) includes a first rotary motor (5) fixedly installed at the rear end of the seat back (1). The output end of the first rotary motor (5) is connected to a first lead screw (6). The first lead screw (6) is arranged along the height direction of the seat back (1). A first slider (7) is threaded onto the first lead screw (6). The first slider (7) has a limiting post (7a) located in the groove (4a).

2. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 1, characterized in that: When the shoulder support (2) is in the forward-extended state, the thrust from the occupant's shoulder can force the groove (4a) to move downward and separate from the limiting post (7a).

3. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 1, characterized in that: The elastic element (3) is a pneumatic spring, with its two ends hinged to the swing arm (4) and the first rotary motor (5), respectively.

4. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 1, characterized in that: The shoulder support (2) has an integrated massage component inside.

5. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 1, characterized in that: The drive mechanism (A) is provided in two sets. The two sets of drive mechanisms (A) are symmetrically distributed on the left and right sides of the seat back (1) and are connected to each other by a connecting plate (11). The lower ends of the shoulder support (2) are rotatably disposed at both ends of the connecting plate (11).

6. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 5, characterized in that: A lifting assembly (B) is provided between the seat back (1) and the shoulder support (2). The lifting assembly (B) is used to drive the shoulder support (2) to move up and down relative to the seat back (1). The lifting assembly (B) includes a lifting motor (12). The lifting motor (12) is located in the middle of the seat back (1). A third lead screw (13) is provided at the output end of the lifting motor (12). The third lead screw (13) is arranged along the length direction of the seat back (1). The middle part of the connecting plate (11) is threadedly assembled with the third lead screw (13).

7. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 6, characterized in that: The drive mechanism (A) is mounted on the connecting plate (11).

8. An adaptive collapsible support structure for a car seat shoulder massage module, comprising a seat back (1) and a shoulder rest (2) rotatably mounted at the shoulder position of the seat back (1), characterized in that: An elastic element (3) is provided between the shoulder support (2) and the seat back (1). The elastic element (3) applies a thrust that causes the shoulder support (2) to flip forward relative to the seat back (1). A drive mechanism (A) is provided between the shoulder support (2) and the seat back (1). The drive mechanism (A) is used to actively control the shoulder support (2) to rotate and fold backward against the resistance of the elastic element (3). When the shoulder support (2) is in the forward-extended state, the thrust from the occupant's shoulder can force the shoulder support (2) to overcome the resistance of the elastic element (3) and passively rotate and fold backward; The shoulder support (2) is fixedly connected to a rearward-extending swing arm (4), the elastic element (3) is supported between the swing arm (4) and the seat back (1), and the drive mechanism (A) can pull the shoulder support (2) to rotate backward through the swing arm (4); The swing arm (4) is provided with a strip hole (4b) extending along the thickness direction of the seat back (1). The drive mechanism (A) includes a second rotary motor (8) rotatably disposed at the rear end of the seat back (1). The output end of the second rotary motor (8) is connected to a second lead screw (9). The second lead screw (9) is arranged along the thickness direction of the seat back (1). A second slider (10) is threaded onto the second lead screw (9). The second slider (10) has a pin (10a) movably disposed in the strip hole (4b).

9. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 8, characterized in that: When the shoulder support (2) is in the forward-facing extended state, the thrust from the occupant's shoulder can force the strip hole (4b) to move backward relative to the pin (10a).

10. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 8, characterized in that: The shoulder support (2) has an integrated massage component inside.

11. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 8, characterized in that: The elastic element (3) is a spring, and the swing arm (4) has a downwardly extending mounting protrusion (4c). The lower end of the spring abuts against the seat back (1), and the upper end is always fitted onto the mounting protrusion (4c).

12. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 8, characterized in that: The drive mechanism (A) is provided in two sets. The two sets of drive mechanisms (A) are symmetrically distributed on the left and right sides of the seat back (1) and are connected to each other by a connecting plate (11). The lower ends of the shoulder support (2) are rotatably disposed at both ends of the connecting plate (11).

13. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 12, characterized in that: A lifting assembly (B) is provided between the seat back (1) and the shoulder support (2). The lifting assembly (B) is used to drive the shoulder support (2) to move up and down relative to the seat back (1). The lifting assembly (B) includes a lifting motor (12). The lifting motor (12) is located in the middle of the seat back (1). A third lead screw (13) is provided at the output end of the lifting motor (12). The third lead screw (13) is arranged along the length direction of the seat back (1). The middle part of the connecting plate (11) is threadedly assembled with the third lead screw (13).

14. The adaptive collapsible support structure for the shoulder massage module of a car seat according to claim 13, characterized in that: The drive mechanism (A) is mounted on the connecting plate (11).

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