Car seats and their linkage unlocking mechanisms

Abstract

This utility model relates to the technical field of car seats, specifically to a car seat and its linkage unlocking mechanism, comprising: a rotating component rotatably mounted on the car seat; a pushing component disposed on the rotating object, the pushing component cooperating with the rotating component to push the rotating component to rotate during the rotation adjustment process of the rotating object from the initial position to the adjusted position, thereby driving the rotating component to unlock the locking mechanism; and an elastic reset component connected at one end to the rotating component, the other end of the elastic reset component being connected to the car seat. When the rotating component rotates, the elastic reset component generates a reset force. After the rotating component rotates to the point of disengagement from the pushing component, the reset force of the elastic reset component drives the rotating component to reset. As the rotating object rotates, the pushing component can push the rotating component to rotate, thereby driving the locking mechanism to unlock. The pushing component can also disengage from the rotating component, allowing the rotating component to reset and preventing the cable from being constantly stretched.

Description

Technical Field

[0001] This utility model relates to the technical field of car seats, and specifically to a car seat and its linkage unlocking mechanism. Background Technology

[0002] Car seats have many rotating components, such as the backrest and the center armrest (located in the middle of the rear seats, also known as the center armrest assembly). These components can be rotated and adjusted relative to a fixed object (such as the seat cushion or base). However, adjusting the backrest and armrest requires corresponding coordination from other components, such as the headrest. For example, when the rear seats are folded down, the headrest needs to fold to prevent it from colliding with the front seats. Similarly, when the armrest is folded up, the headrest needs to fold to support the armrest on the seat cushion. Currently, car seats lack a mechanism to automatically unlock and coordinate these components during adjustment. Users must manually fold these components, such as the headrest, before adjusting the seat, resulting in a poor user experience. Therefore, there is an urgent need for a mechanism to automatically unlock and coordinate these components to solve this problem. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a car seat and its linkage unlocking mechanism, which solves the problem that the existing car seats do not have a linkage unlocking mechanism and require manual adjustment of related components before the rotating object can be adjusted, resulting in a poor user experience.

[0004] The technical solution to achieve the above objectives is:

[0005] This utility model provides a linkage unlocking mechanism for a car seat, which cooperates with a rotating object to drive a locking mechanism to an unlocked state, thereby unlocking a linkage object. The linkage unlocking mechanism includes:

[0006] A rotating component that can be rotatably mounted on a fixed object;

[0007] A pusher is provided on the rotating object. The pusher can cooperate with the rotating member to push the rotating member to rotate during the process of the rotating object rotating relative to the fixed object from the initial position to the adjustment position, thereby driving the locking mechanism to unlock. During the process of the rotating object (11) rotating relative to the fixed object (13) from the adjustment position to the initial position, the rotating member (21) is pushed to rotate in the opposite direction, and the locking mechanism (121) remains locked.

[0008] An elastic reset member is connected at one end to the rotating member and at the other end to the fixed object. When the rotating member rotates, the elastic reset member generates a reset force. After the rotating member rotates to the point of disengaging from the pushing member, the reset force of the elastic reset member drives the rotating member to reset.

[0009] A further improvement of the linkage unlocking mechanism for the car seat of this utility model is that the rotating member is provided with a toggle part corresponding to the pushing member, and the toggle part is provided on the rotation path of the pushing member;

[0010] When the rotating object is in the initial position, there is a gap between the pushing member and the actuating part, so that the rotating object and the pushing member can come into contact with the actuating part after rotating through a certain movement stroke.

[0011] A further improvement of the linkage unlocking mechanism of the car seat of this utility model is that it also includes a cable, one end of which is connected to the locking mechanism, and the other end of which is movably connected to the rotating component;

[0012] When the rotating member is pushed to rotate by the pushing member, the rotating member pulls the cable to unlock the locking mechanism.

[0013] A further improvement of the linkage unlocking mechanism of the car seat of this utility model is that a connecting pin is provided on the end of the rotating part corresponding to the end of the cable;

[0014] The end of the cable is fitted onto the connecting pin.

[0015] A further improvement of the linkage unlocking mechanism for the car seat of this utility model is that a connecting hole is provided on the rotating part corresponding to the end of the cable;

[0016] The end of the cable passes through the connecting hole and is then connected to a limiting head to prevent the end of the cable from disengaging from the rotating component.

[0017] A further improvement of the linkage unlocking mechanism for the car seat of this utility model is that the rotation center of the rotating component is eccentrically set with respect to the rotation center of the rotating object.

[0018] A further improvement of the linkage unlocking mechanism of the car seat of this utility model is that a bracket is provided on the fixed object;

[0019] The rotating component is rotatably mounted on the bracket;

[0020] The other end of the elastic reset member is also connected to the bracket.

[0021] A further improvement of the linkage unlocking mechanism for the car seat of this utility model is that the pushing member is integrated with the rotating object; or the pushing member is fixedly connected to the rotating object.

[0022] This utility model also provides a car seat with the aforementioned linkage unlocking mechanism, including a backrest assembly as the object of rotation, and a headrest on the backrest assembly as the object of linkage.

[0023] This utility model also provides a rear seat with the aforementioned linkage unlocking mechanism for automobile seats, including a center armrest assembly as the object of rotation, and a headrest on the center armrest assembly as the object of linkage.

[0024] The beneficial effects of this utility model of a car seat and its linkage unlocking mechanism are as follows:

[0025] This utility model's linkage unlocking mechanism, through a rotating component, drives a pushing component to rotate along with the rotating object as it rotates from its initial position towards the adjusted position. The pushing component then cooperates with the rotating component to push it to rotate, which in turn unlocks a locking mechanism, allowing the linked object to complete its corresponding adjustment after unlocking. For example, it can be used to unlock a headrest by rotating the backrest or armrest of a car seat, enabling one-button folding and increasing convenience.

[0026] The linkage unlocking mechanism of this utility model allows the pushing component to disengage from the rotating component after contacting and pushing it to rotate a certain angle as the rotating object rotates from the initial position to the adjustment position. This avoids continuously pushing the rotating component. When linked with the locking mechanism via a cable, it prevents the cable from being constantly under tension, thus improving the cable's service life and eliminating the need for devices such as cable compensators.

[0027] The linkage unlocking mechanism of this utility model allows the rotating object and the pushing component to come into contact with the rotating component after the rotating object has traveled a certain distance. This provides the rotating object with a certain range of free adjustment, which in turn provides a comfortable adjustment range for the backrest. During non-reclining process, the linkage object will not be triggered to unlock or make corresponding adjustments.

[0028] The linkage unlocking mechanism of this utility model does not have a hard stop point, which can optimize the sound of metal-to-metal collision (i.e., optimize BSR). Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the linkage unlocking mechanism of the car seat of this utility model, which is located on the car seat frame.

[0030] Figure 2 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model, which is located on a rotating object and a fixed object.

[0031] Figure 3 This is an exploded disassembly diagram of the installation location of the linkage unlocking mechanism of the car seat according to this utility model.

[0032] Figure 4 This is an exploded exploded structural diagram of the first embodiment of the linkage unlocking mechanism for a car seat of this utility model, in which the end of the cable is connected to the rotating component.

[0033] Figure 5 This is a schematic diagram of the first embodiment of the linkage unlocking mechanism for a car seat of this utility model, in which the end of the zipper is connected to the rotating component.

[0034] Figure 6 This is a schematic diagram of the connection between the other end of the cable and the locking mechanism in the linkage unlocking mechanism of the car seat of this utility model.

[0035] Figure 7 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model when the rotating object is in its initial position.

[0036] Figure 8 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model, in which the pushing component contacts the rotating component after the rotating object rotates a certain angle toward the adjustment position.

[0037] Figure 9 The linkage unlocking mechanism of this utility model for a car seat is used when the object is rotating. Figure 9 The diagram shows a structure in which the rotating component rotates as it continues to rotate toward the adjustment position in the state shown.

[0038] Figure 10 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model, where the locking mechanism is unlocked when the cable is stretched to its maximum stroke.

[0039] Figure 11 for Figure 10 The locking mechanism inside the headrest is unlocked in the shown state. This is a structural diagram of the car seat frame with the headrest folded down.

[0040] Figure 12 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model in the state where the pushing component and the rotating component are disengaged.

[0041] Figure 13 This is a schematic diagram of the linkage unlocking mechanism for the car seat of this utility model, showing the rotating object continuing to rotate towards the adjustment position while the rotating component resets.

[0042] Figure 14 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model when the rotating object is rotated to the adjustment position.

[0043] Figure 15 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model, showing the structure at the point where the pushing component and the rotating component come into contact when the rotating object rotates from the adjusted position to the initial position.

[0044] Figure 16 The linkage unlocking mechanism of the car seat of this utility model is in Figure 16 The diagram shown illustrates the structure in which the pushing component continues to rotate while the rotating component rotates.

[0045] Figure 17 The linkage unlocking mechanism of the car seat of this utility model is in Figure 17 A schematic diagram of the structure after which the pushing component separates from the rotating component.

[0046] Figure 18 This is a schematic diagram of the linkage unlocking mechanism of the car seat of this utility model, showing the rotating object rotating backward from its initial position.

[0047] Figure 19 This is a structural diagram of the backrest assembly of a car seat frame with the linkage unlocking mechanism of this utility model in its initial position.

[0048] Figure 20 This is a schematic diagram of the backrest assembly of a car seat frame with the linkage unlocking mechanism of this invention, when it rotates from the initial position to the adjustment position, causing the pushing member to contact the rotating member.

[0049] Figure 21 A schematic diagram showing the structure of a car seat frame with the linkage unlocking mechanism of this invention, whereby the backrest assembly continues to rotate toward the adjustment position, thereby unlocking the locking mechanism and causing the headrest to fold.

[0050] Figure 22 This is a structural diagram of the backrest assembly of a car seat frame with the linkage unlocking mechanism of this utility model in the adjustable position.

[0051] Figure 23 This is a structural diagram of a car seat frame backrest assembly with the linkage unlocking mechanism of this invention in one state during the self-adjusting position rotation towards the initial position.

[0052] Figure 24 This is a schematic diagram of the structure of a car seat frame with the linkage unlocking mechanism of this utility model, showing how the backrest assembly can be adjusted to a certain angle by rotating backward from its initial position.

[0053] Explanation of reference numerals in the attached figures:

[0054] Car seat - 10; Rotating object - 11; Rotation center of rotating object - A; Pushing component assembly hole - 111; Linked object - 12; Locking mechanism - 121; Fixed object - 13; Stop point assembly hole - 131; Adjuster - 14; Stop point - 15;

[0055] Rotating component - 21; Rotation center of rotating component - B; Actuating part - 211; Center hole - 212; Step rivet - 213; Bushing - 214; Connecting hole - 215; Connecting pin - 216; Outer baffle - 2161; Limiting plate - 2162, 2163; First hook hole - 217; Pushing component - 22; Elastic reset component - 23; Cable - 24; Socket joint - 241; Bracket - 25; Hinge hole - 251; Second hook hole - 252; Angle - C. Detailed Implementation

[0056] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0057] See Figure 1 This utility model provides a car seat and its linkage unlocking mechanism to solve the problem of poor user experience caused by the need for manual adjustment of related components during the rotation of the seat in existing technology. The linkage unlocking mechanism of this utility model unlocks the locking mechanism of the linked object through rotation, avoiding manual adjustment. During the rotation of the backrest or armrest, the linkage unlocking mechanism of this utility model can simultaneously unlock the locking mechanism on the headrest, allowing the headrest to fold after unlocking. This linkage unlocking mechanism does not require an additional drive source, reducing product costs. The following description, in conjunction with the accompanying drawings, describes this car seat and its linkage unlocking mechanism.

[0058] See Figure 1 This diagram shows a three-dimensional structural schematic of the linkage unlocking mechanism of the car seat of this utility model, which is located on the car seat frame. (See attached diagram.) Figure 2 This diagram shows the structural schematic of the linkage unlocking mechanism of the car seat of this utility model, which is located on a rotating object and a fixed object. (See also...) Figure 3 The image shows an exploded structural diagram of the installation location of the linkage unlocking mechanism for the car seat of this utility model. The following is in conjunction with... Figures 1 to 3 The linkage unlocking mechanism of the car seat of this utility model will be described.

[0059] like Figures 1 to 3As shown, the linkage unlocking mechanism of the car seat of this utility model cooperates with a rotating object 11 to drive a locking mechanism to move to the unlocked state, thereby unlocking a linkage object 12. The linkage unlocking mechanism includes a rotating component 21, a pushing component 22, and an elastic reset component 23. The rotating component 21 is rotatably mounted on a fixed object 13. The pushing component 22 is disposed on the rotating object 11, and the pushing component 22 cooperates with the rotating component 21 to push the rotating component 21 to rotate during the process of the rotating object 11 rotating relative to the fixed object 13 from the initial position to the adjustment position. The rotating component 21 drives the locking mechanism to unlock, and during the process of the rotating object 11 rotating relative to the fixed object 13 from the adjustment position to the initial position, it pushes the rotating component 21 to rotate in the opposite direction, while the locking mechanism 121 remains locked. One end of the elastic reset component 23 is connected to the rotating component 21, and the other end of the elastic reset component 23 is connected to the fixed object 13. When the rotating component 21 rotates, the elastic reset component 23 generates a reset force. After the rotating component 21 rotates until it is disengaged from the pushing component 22, the reset force of the elastic reset component 23 drives the rotating component 21 to reset.

[0060] The linkage unlocking mechanism of this utility model for car seats is applicable to any rotating object 11 on the car seat 10. It can unlock a locking mechanism driven by the rotation of the rotating object 11, thereby unlocking the corresponding linkage object 12 and allowing the linkage object 12 to be adjusted accordingly.

[0061] In a preferred embodiment of this utility model, the rotating object 11 is the backrest assembly 11 of the car seat 10, and the linkage object 12 is the headrest on the backrest assembly 11. Thus, the backrest assembly has a one-button folding function. When the backrest is folded down, the headrest is automatically folded by unlocking it, preventing interference between the headrest and the front seat. In another preferred embodiment, the rotating object 11 is the center armrest assembly (also called the large armrest) of the rear seat, and the linkage object 12 is the headrest mounted on the center armrest assembly. Thus, when the center armrest assembly is folded down, the headrest is automatically folded by unlocking it, allowing the headrest to support the seat after the center armrest assembly is folded down. Figure 6 As shown, a locking mechanism 121 is provided inside the headrest. When locked, the locking mechanism 121 can lock the position of the headrest, for example... Figure 19 As shown in the diagram, with the locking mechanism 121 in the unlocked state, the position of the headrest can be adjusted accordingly, for example... Figure 21 The headrest shown folds forward and can be automatically folded up when the headrest is unlocked, thanks to a torsion spring and other mechanisms.

[0062] When rotating the center armrest assembly of the rear seats, the initial position is the folded-down position, and the adjustment position is the folded-down position. For the center armrest assembly, folding down can only be done forward. When rotating the backrest assembly, the initial position is the designed position, and the adjustment position is the folded-down position.

[0063] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the rotating member 21 has a toggle part 211 corresponding to the pushing member 22, and the toggle part 211 is located on the rotation path of the pushing member 22; therefore, when the pushing member 22 rotates along the rotation path, it can contact the toggle part 211 and thus push the toggle part 211; as Figure 7 and Figure 19 As shown, when the rotating object 11 is in the initial position, there is a gap 26 between the pusher 22 and the actuating part 211 so that the rotating object 11 and the pusher 22 can come into contact with the actuating part 211 after rotating through a certain travel distance.

[0064] Combination Figure 7 and Figure 8 As shown, rotating object 11 is in Figure 7 Rotate to the initial position shown Figure 8 When in the position shown, the pushing member 22 contacts the actuating part 211 of the rotating member 21, that is, the rotating object 11 moves from... Figure 7 The initial position was rotated to Figure 8 The movement distance at the indicated position is a blank travel distance and will not trigger the locking mechanism 121 of the linkage object 12 to unlock. This movement distance setting can provide a comfortable adjustment space for the rotating object 11. When the rotating object 11 is a backrest assembly, the occupant can adjust the setting angle of the backrest assembly according to their own preferences so that the backrest assembly can provide a comfortable support effect for the occupant.

[0065] Furthermore, by adjusting the setting size of the gap 26, the size of the travel stroke can be adjusted, combined with... Figure 11 As shown, the rotation angle C when the rotating object 11 triggers the locking mechanism to unlock can be defined. When the rotating object 11 rotates from the initial position to the adjusted position by angle C, the locking mechanism unlocks, and the linked object 12 automatically folds.

[0066] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the linkage unlocking mechanism of this utility model also includes a cable 24, combined with... Figure 6As shown, one end of the cable 24 is connected to the locking mechanism 121, and the other end of the cable 24 is movably connected to the rotating member 21. When the rotating member 21 is pushed to rotate by the pusher 22, the rotating member 21 pulls the cable 24 to unlock the locking mechanism 121.

[0067] like Figures 8 to 10 As shown, the rotating object 11 rotates towards the adjustment position, causing the pusher 22 to rotate as well. The pusher 22, through rotation, can contact the actuating part 211 on the rotating part 21, thereby pushing the actuating part 211 to rotate together. The rotation of the actuating part 211 pulls the cable 24, which in turn pulls the locking mechanism 121 to unlock, thus realizing the unlocking of the linkage object 12.

[0068] like Figure 6 As shown, one end of the cable 24 passes through the linkage object 12 and is fixedly connected to the corresponding unlocking component on the locking mechanism 121. This connection can be achieved by welding or by using fasteners such as bolts. By pulling the corresponding unlocking component on the locking mechanism 121, the cable 24 drives the locking mechanism 121 to the unlocked state, thereby unlocking the linkage object 12.

[0069] In a preferred embodiment, such as Figure 4 and Figure 5 As shown, the rotating part 21 is provided with a connecting pin 216 corresponding to the end of the cable 24. The end of the cable 24 is sleeved on the connecting pin 216, so that the end of the cable 24 sleeved on the connecting pin 216 can be rotated and adjusted relative to the connecting pin 216.

[0070] Furthermore, an outer baffle 2161 is connected to the outer side of the connecting pin 216. The outer baffle 2161 is preferably elongated and arranged laterally. The corresponding end of the cable 24 is provided with a sleeve 241. An elongated hole matching the shape of the outer baffle 2161 is formed on the inner side of the sleeve 241. The sleeve 241 can be fitted onto the outer baffle 2161 through the elongated hole, and then onto the connecting pin 216 through the outer baffle 2161. The elongated hole on the sleeve 241 is staggered with the outer baffle 2161, thereby preventing the sleeve 241 from detaching from the connecting pin 216.

[0071] The end of the connecting pin 216 away from the outer baffle 2161 is fixedly connected to the rotating part 21, preferably by welding.

[0072] Alternatively, a connecting hole 215 is provided on the rotating part 21 corresponding to the connecting pin 216, and the end of the connecting pin 216 passes through the connecting hole 215. Then, limiting plates 2162 and 2163 are provided on both sides of the connecting hole 215. Furthermore, the limiting plates 2162 and 2163 can be welded and fixed to the rotating part 21.

[0073] In another preferred embodiment, the rotating member 21 is provided with a connecting hole 215 corresponding to the end of the cable 24; a limiting head is connected to the end of the cable 24, and the limiting head passes through the connecting hole 215 to prevent the end of the cable 24 from disengaging from the rotating member 21.

[0074] The limiting head is preferably Z-shaped.

[0075] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the rotation center B of the rotating component 21 is offset from the rotation center A of the rotating object 11. That is, the rotation center B is offset from the rotation center A. Therefore, in conjunction with... Figure 10 and Figure 12 As shown, when the pushing member 22 rotates to a certain angle, it can disengage from the rotating member 21.

[0076] In a preferred embodiment, the rotating object 11 is connected to a fixed object 13 via an angle adjuster 14, which can drive the rotating object 11 to rotate relative to the fixed object 13.

[0077] Both the rotating object 11 and the fixed object 13 are part of the car seat 10. Figure 2 and Figure 3 In this configuration, the rotating object 11 is the upper connecting plate, and the fixed object 13 is the lower connecting plate. The upper connecting plate is connected to the backrest assembly or is part of the backrest assembly, while the lower connecting plate is connected to the seat cushion assembly or is part of the seat cushion assembly. The backrest assembly and the seat cushion assembly together constitute the car seat 10, and the backrest assembly can rotate relative to the seat cushion assembly. In another preferred embodiment, the upper connecting plate is part of the backrest assembly, and the lower connecting plate is the base of the backrest assembly, which can rotate relative to the base. In yet another preferred embodiment, the rotating object 11 is the center armrest assembly, and the fixed object 13 is the backrest assembly, which can rotate relative to the backrest assembly.

[0078] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the car seat 10 of this utility model includes a fixed object 13, on which a bracket 25 is provided, and a rotating member 21 is rotatably mounted on the bracket 25; the other end of the elastic reset member 23 is also connected to the bracket 25. Figure 2 and Figure 3 In this configuration, the fixed object 13 is a lower connecting plate, and the bracket 25 is fixedly connected to the lower connecting plate. Preferably, the bracket 25 can be welded to the lower connecting plate, or the bracket 25 can be integrated with the fixed object 13.

[0079] Furthermore, the bracket 25 has a hinge hole 251 corresponding to the rotating component 21, and the rotating component 21 has a central hole 212. A rotating shaft passes through the central hole 212 and the hinge hole 251, allowing the rotating component 21 to be rotatably mounted on the bracket 25. This rotating shaft can be a pin, a bushing 214, or a stepped rivet 213. The bushing 214 and the stepped rivet 213 pass through the central hole 212 of the rotating component 21 and the hinge hole 251 of the bracket 25, thus achieving a rotatable connection between the rotating component 21 and the bracket 25.

[0080] Furthermore, a second mounting hole 252 is provided on the bracket 25 corresponding to the end of the elastic reset member 23, and a first mounting hole 217 is provided on the rotating member 21 corresponding to the end of the elastic reset member 23. The two ends of the elastic reset member 23 are mounted on the corresponding first mounting hole 217 and second mounting hole 252. The elastic reset member 23 is preferably a reset spring.

[0081] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the pusher 22 is integrated with the rotating object 11, or the pusher 22 is fixedly connected to the rotating object 11.

[0082] The pusher 22 is preferably a push rod, which can be integrally formed with the rotating object 11, or the rotating object 11 can be provided with a pusher assembly hole 111, the pusher 22 is inserted into the pusher assembly hole 111, and then the pusher 22 is welded and fixed to the rotating object 11.

[0083] like Figure 3 As shown, a stop point assembly hole 131 is provided on the fixed object 13, and a stop point 15 is fitted and connected at the stop point assembly hole 131. The stop point 15 is welded and fixed to the fixed object 13, and the rotation angle of the rotating object 11 can be limited by setting the stop point 15.

[0084] The following is combined Figures 7 to 24 As shown, taking the rotating object 11 as the backrest assembly, the linkage object 12 as the headrest on the backrest assembly, and the fixed object 13 as the lower connecting plate on the seat cushion assembly as an example, the movement process of the linkage unlocking mechanism of this utility model will be explained.

[0085] like Figure 7 and Figure 19 As shown, the backrest assembly is positioned at the designed location (i.e., the initial position), with a gap 26 between the pushing member 22 and the actuating part 211 of the rotating member 21. Furthermore... Figure 8 and Figure 20 As shown, after the backrest assembly rotates forward one stroke, the pushing member 22 engages with the actuating part 211 of the rotating member 21, at which point the headrest 12 remains in a supported state. Figure 9, Figure 10 and Figure 21 As shown, the backrest assembly continues to rotate forward, and the pusher 22 pushes the rotating member 21 to rotate. Figure 9 and Figure 10 In the example shown, the rotating component 21 rotates counterclockwise (of course, the direction of rotation of the rotating component 21 is not limited to this; it can also rotate clockwise, for example, by placing the rotating component 21 on the other side of the backrest assembly). The rotation of the rotating component 21 pulls the cable 24, which in turn unlocks the locking mechanism 121. After the locking mechanism 121 is unlocked, the headrest can automatically fold under the drive of a driving component, such as a torsion spring. The rotation of the rotating component 21 also stretches the elastic reset component 23, causing it to generate a restoring force. Combined with... Figures 12 to 14 as well as Figure 22 As shown, the backrest assembly continues to rotate forward, causing the pusher 22 to disengage from the rotating member 21. The rotating member 21 is reset under the action of the elastic reset member 23. After the rotating member 21 is reset, the tension on the cable 24 is released, thus preventing the cable 24 from being in a state of tension. Figure 22 The display shows the backrest assembly in its adjusted position, at which point the backrest assembly has been folded down.

[0086] The following describes the process of rotating the backrest assembly from the adjustment position to the design position.

[0087] like Figure 22 and Figure 14 As shown, the backrest assembly is in the adjustment position. Move the backrest assembly upwards by hand to rotate it backwards. Figure 23 and Figure 13 As shown, the backrest assembly rotates backward, causing the pusher 22 to rotate towards the rotating member 21. After rotating to a certain angle, it engages... Figure 15 As shown, at the junction of the pushing member 22 and the rotating member 21, as the backrest assembly continues to rotate backward, the contact... Figure 16 As shown, the pushing member 22 can push the rotating member 21 to rotate clockwise (of course, the rotation direction of the rotating member 21 is not limited to this; the rotating member 21 can also rotate counterclockwise, for example, by placing the rotating member 21 on the other side of the backrest assembly). The clockwise rotation of the rotating member 21 can pull the elastic reset member 23 to generate a restoring force, combined with... Figure 17 As shown, as the backrest assembly continues to rotate backward, the pushing member 22 disengages from the rotating member 21. The rotating member 21 then resets under the action of the elastic reset member 23. Figure 7 and Figure 19 As shown, the backrest assembly can continue to rotate backward to the designed position, combined with Figure 21 and Figure 19 As shown, the headrest does not automatically return to its original position during the rearward rotation of the backrest assembly; manual reset is required during this process. Furthermore, in conjunction with... Figure 18 and Figure 24 As shown, the backrest assembly can also be rotated backward in the designed position. During this rotation, the pusher 22 moves away from the rotating member 21 and will not unlock the locking mechanism inside the headrest.

[0088] The present invention also provides a car seat having the above-mentioned linkage unlocking mechanism, and the car seat further includes a backrest assembly as a rotating object 11 and a headrest on the backrest assembly as a linkage object 12.

[0089] This utility model also provides a rear seat, namely a car rear seat, which includes the above-mentioned linkage unlocking mechanism. The rear seat also includes a center armrest assembly as a rotating object 11 and a headrest on the center armrest assembly as a linkage object 12.

[0090] The linkage unlocking mechanism of this utility model has the advantages of simple structure and low cost. It can be realized by three parts: a rotating part, a pushing part, and an elastic reset part. The linkage unlocking mechanism is installed on the side of the fixed object corresponding to the rotating object, and occupies less space in the Y direction.

[0091] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A linkage unlocking mechanism for a car seat, which cooperates with a rotating object (11) to drive a locking mechanism (121) to move to an unlocked state, thereby unlocking a linkage object (12), characterized in that, The linkage unlocking mechanism includes: A rotating component (21) rotatably mounted on a fixed object (13); A pusher (22) is provided on the rotating object (11). The pusher (22) can cooperate with the rotating member (21) to push the rotating member (21) to rotate during the process of the rotating object (11) rotating relative to the fixed object (13) from the initial position to the adjustment position. Then the rotating member (21) drives the locking mechanism (121) to unlock. During the process of the rotating object (11) rotating relative to the fixed object (13) from the adjustment position to the initial position, the rotating member (21) is pushed to rotate in the opposite direction. The locking mechanism (121) remains locked. An elastic reset member (23) is connected at one end to the rotating member (21), and the other end of the elastic reset member (23) is connected to the fixed object (13). When the rotating member (21) rotates, the elastic reset member (23) generates a reset force. After the rotating member (21) rotates to the point of disengaging from the pusher (22), the reset force of the elastic reset member (23) drives the rotating member (21) to reset.

2. The linkage release mechanism for an automotive seat according to claim 1, wherein The rotating member (21) is provided with a toggle part (211) corresponding to the pushing member (22), and the toggle part (211) is provided on the rotation path of the pushing member (22); When the rotating object (11) is in the initial position, there is a gap (26) between the pusher (22) and the actuating part (211) so that the rotating object (11) and the pusher (22) can come into contact with the actuating part (211) after rotating through a certain travel distance.

3. The linkage release mechanism for an automotive seat according to claim 1, wherein It also includes a cable (24), one end of which is connected to the locking mechanism (121), and the other end of which is movably connected to the rotating member (21); When the rotating member (21) is pushed to rotate by the pushing member (22), the rotating member (21) pulls the cable (24) to unlock the locking mechanism (121).

4. The linkage release mechanism for an automotive seat according to claim 3, wherein The rotating part (21) is provided with a connecting pin (216) at the end corresponding to the cable (24); The end of the cable (24) is fitted onto the connecting pin (216).

5. The linkage release mechanism for an automotive seat according to claim 3, wherein The rotating component (21) is provided with a connecting hole (215) at the end corresponding to the cable (24); The end of the cable (24) passes through the connecting hole (215) and is connected to a limiting head to prevent the end of the cable (24) from disengaging from the rotating member (21).

6. The linkage release mechanism for an automotive seat according to claim 1, wherein The rotation center (B) of the rotating component (21) is eccentrically set with respect to the rotation center (A) of the rotating object (11).

7. The linkage release mechanism for an automotive seat according to claim 1, wherein The fixed object (13) is provided with a bracket (25); The rotating component (21) is rotatably mounted on the bracket (25); The other end of the elastic reset member (23) is also connected to the bracket (25).

8. The linkage release mechanism for an automotive seat according to claim 1, wherein The pusher (22) is integrated with the rotating object (11); or the pusher (22) is fixedly connected to the rotating object (11).

9. A vehicle seat having a linkage unlocking mechanism of the vehicle seat according to any one of claims 1 to 8, characterized by This includes the backrest assembly as the rotating object (11) and the headrest on the backrest assembly as the linkage object (12).

10. A rear seat having a linkage unlocking mechanism of the vehicle seat according to any one of claims 1 to 8, characterized by, This includes the center armrest assembly as the rotating object (11) and the headrest on the center armrest assembly as the linkage object (12).

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