A linkage unlocking and folding mechanism

Abstract

This invention relates to the field of automotive manufacturing, and more particularly to a linkage unlocking and folding mechanism. The linkage unlocking and folding mechanism includes a mechanism fixing lower plate and a backrest side plate, as well as a rotating mechanism and a locking adjustment mechanism. The rotating mechanism includes an adjuster, an upper connecting plate for the adjuster, a locking tooth return spring, and locking tooth fixing rivets. The adjuster is rotatably mounted on the top of the mechanism fixing lower plate via a rotating shaft, and the upper connecting plate for the adjuster is integrally fixed on the top of the adjuster. In use, the linkage unlocking and folding mechanism provided by this invention, by rotating the adjuster, and through the coordinated operation of the rotating mechanism and the locking adjustment mechanism, drives the seat back connected to the backrest side plate to rotate, thereby adjusting the seat angle. Due to gravity, the seat back will flatten to the desired position, achieving a significant backrest flattening while ensuring occupant comfort.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing, and more particularly to a linkage unlocking and folding mechanism. Background Technology

[0002] Due to the ever-increasing demands of users, cars need to meet more functional and spatial requirements in addition to transportation. Therefore, the flat-back design of car seats is becoming increasingly widespread in various car models, and it is not limited to the rear seats. If the seat back is laid flat to a large extent, it can greatly reduce the interior space. The advantage of traditionally folding down the rear seats is that it expands the trunk space, merging the rear space of the car with the trunk. However, such seats usually do not have seat back angle adjustment function and have a flat and monotonous shape, which makes the riding comfort of rear passengers poor.

[0003] Therefore, it is necessary to provide a new linkage unlocking and folding mechanism to solve the above-mentioned technical problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a linkage unlocking and folding mechanism that can simultaneously achieve a large-scale flattening of the backrest while ensuring passenger comfort.

[0005] The linkage unlocking and folding mechanism provided by this invention includes a mechanism fixing lower plate and a backrest side plate, as well as a rotation mechanism and a snap-fit ​​adjustment mechanism. The rotation mechanism includes an adjuster, an upper connecting plate for the adjuster, a snap-fit ​​return spring, and a snap-fit ​​fixing rivet. The adjuster is rotatably mounted on the top of the mechanism fixing lower plate via a rotating shaft. The upper connecting plate for the adjuster is integrally fixed on the top of the adjuster. A snap-fit ​​fixing rivet is installed in the middle of the upper connecting plate for the adjuster. A snap-fit ​​return spring is fixedly installed at one end of the snap-fit ​​fixing rivet. An installation cap is installed on the top of the upper connecting plate for the adjuster near the snap-fit ​​teeth. In use, the snap-fit ​​adjustment mechanism cancels the positioning of the seat back, and then the rotation mechanism adjusts the rotation angle of the seat back connected to the backrest side plate.

[0006] Preferably, the lower plate of the mechanism is a rigid component. This improves the overall rigidity and strength of the lower plate of the mechanism.

[0007] Preferably, the rotating mechanism further includes a tilting limit pin, a locking tooth limit plate, a backrest connecting rivet, an upper connecting plate of the adjuster, a plug connecting rivet, and a fixing rivet for the upper connecting plate of the angle adjuster. The middle part of the plug is riveted with a plug connecting rivet by a riveting process. The upper connecting plate of the adjuster is fixedly installed on the backrest side plate by the tilting limit pin and the plug connecting rivet. The tilting limit pin is riveted between the backrest side plate and the upper connecting plate of the adjuster by a riveting process. The locking tooth limit plate is rotatably installed on the backrest side plate by the plug connecting rivet. The upper connecting plate of the angle adjuster is fixedly installed on the middle part of the upper connecting plate of the adjuster. The locking tooth limit plate is installed between the backrest side plate and the backrest connecting rivet by a riveting process.

[0008] Preferably, the snap-fit ​​adjustment mechanism includes a snap-fit ​​rivet, snap-fit ​​teeth, and positioning teeth. The snap-fit ​​teeth are rotatably mounted on the upper connecting plate of the angle adjuster via the snap-fit ​​rivet on the upper connecting plate of the angle adjuster. The snap-fit ​​teeth are riveted to the snap-fit ​​rivet by a riveting process. The snap-fit ​​rivet passes through the upper connecting plate of the angle adjuster. The end of the snap-fit ​​tooth return spring away from the snap-fit ​​tooth fixing rivet is snapped with the outer side of the snap-fit ​​tooth rivet. The positioning teeth are fixedly installed on the lower fixing plate of the mechanism at the position corresponding to the snap-fit ​​teeth.

[0009] Compared with related technologies, the linkage unlocking and folding mechanism provided by the present invention has the following beneficial effects:

[0010] This invention provides a linkage unlocking and folding mechanism. Compared with the prior art, when people use this mechanism to adjust the seat, by rotating the angle adjuster, the seat back connected to the backrest side panel is rotated through the cooperation of the rotating mechanism and the locking adjustment mechanism, thereby adjusting the seat angle. Due to gravity, the seat back will flatten to the desired position, so that the rotation of the seat back can achieve a large-scale flattening of the backrest while ensuring the comfort of the passenger. Attached Figure Description

[0011] Figure 1 This is one of the overall structural schematic diagrams provided by the present invention;

[0012] Figure 2 for Figure 1 The second schematic diagram of the overall structure shown;

[0013] Figure 3 for Figure 1 The diagram shows a partial side view of the structure.

[0014] Figure 4 for Figure 1 One of the structural schematic diagrams of the connecting plate on the angle adjuster shown;

[0015] Figure 5 for Figure 1 The second schematic diagram of the structure of the connecting plate on the angle adjuster is shown.

[0016] Figure 6 for Figure 1 The diagram shows the structure of the toothed limiting plate.

[0017] Figure 7 for Figure 1 One of the schematic diagrams of the partial structure shown;

[0018] Figure 8 for Figure 1 One of the structural schematic diagrams of the backrest side panel shown;

[0019] Figure 9 for Figure 1 The diagram shows the structure of the locking teeth;

[0020] Figure 10 for Figure 1 The second schematic diagram of the partial structure is shown.

[0021] The following are the labels in the diagram: 1. Mechanism fixing lower plate; 2. Angle adjuster; 3. Angle adjuster upper connecting plate; 4. Clamping tooth return spring; 5. Clamping tooth rivet; 6. Tilting limit pin; 7. Clamping tooth fixing rivet; 8. Clamping tooth; 9. Clamping tooth limit plate; 10. Installation plug; 11. Backrest connecting rivet; 12. Adjuster upper connecting plate; 13. Plug connecting rivet; 14. Angle adjuster upper connecting plate fixing rivet; 15. Backrest side plate; 16. Positioning tooth; 17. Rotation mechanism; 18. Clamping adjustment mechanism. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] Please see Figures 1 to 10 This invention provides a linkage unlocking and folding mechanism, which includes a mechanism fixing lower plate 1 and a backrest side plate 15, as well as a rotation mechanism 17 and a snap-fit ​​adjustment mechanism 18. The rotation mechanism 17 includes an adjuster 2, an upper connecting plate 3 for the adjuster, a snap-fit ​​return spring 4, and a snap-fit ​​fixing rivet 7. The adjuster 2 is rotatably mounted on the top of the mechanism fixing lower plate 1 via a rotating shaft. The upper connecting plate 3 for the adjuster is integrally fixed on the top of the adjuster 2. The snap-fit ​​fixing rivet 7 is installed in the middle of the upper connecting plate 3 for the adjuster. The snap-fit ​​return spring 4 is fixedly installed at one end of the snap-fit ​​fixing rivet 7. An installation plug 10 is installed on the top of the upper connecting plate 3 for the adjuster near the snap-fit ​​8.

[0025] It should be noted that when the device is in use, the positioning of the seat back is canceled by using the snap-fit ​​adjustment mechanism 18, and then the rotation angle of the seat back connected to the backrest side plate 15 is adjusted by the rotation mechanism 17.

[0026] Please see Figures 1 to 10 The lower plate 1 of the mechanism is a rigid part.

[0027] It should be noted that the overall strength of the fixed lower plate 1 of the mechanism has been improved.

[0028] Please see Figures 1 to 10 The rotating mechanism 17 also includes a tilting limit pin 6, a toothed limit plate 9, a backrest connecting rivet 11, an upper connecting plate 12 of the adjuster, a plug connecting rivet 13, and an upper connecting plate fixing rivet 14 of the angle adjuster. The middle part of the plug 10 is riveted with the plug connecting rivet 13 by a riveting process. The upper connecting plate 12 of the adjuster is fixedly installed on the backrest side plate 15 by the tilting limit pin 6 and the plug connecting rivet 13. The tilting limit pin 6 is riveted between the backrest side plate 15 and the upper connecting plate 12 of the adjuster by a riveting process. The toothed limit plate 9 is rotatably installed on the backrest side plate 15 by the plug connecting rivet 13. The upper connecting plate 12 of the adjuster is installed with the upper connecting plate fixing rivet 14 in the middle part. The toothed limit plate 9 and the backrest side plate 15 are riveted with the backrest connecting rivet 11 by a riveting process.

[0029] It should be noted that when the seat back connected to the backrest side panel 15 is rotated, the operation of the locking adjustment mechanism 18 during the use of the mechanism by the end user will drive the backrest side panel 15 to rotate around the pivot between the mechanism fixing lower plate 1 and the adjuster 2, and the seat back connected to the backrest side panel 15 will be adjusted by unlocking the adjuster 2.

[0030] Please see Figures 1 to 10 The snap-fit ​​adjustment mechanism 18 includes snap-fit ​​rivets 5, snap-fit ​​teeth 8, and positioning teeth 16. The snap-fit ​​teeth 8 are rotatably mounted on the upper connecting plate 3 of the angle adjuster by snap-fit ​​rivets 14. The snap-fit ​​teeth 8 are riveted to the snap-fit ​​rivets 5 by a riveting process. The snap-fit ​​rivets 5 are set through the upper connecting plate 3 of the angle adjuster. The snap-fit ​​return spring 4 is snapped with the outer side of the snap-fit ​​rivet 7 away from the snap-fit ​​teeth rivet 7. The positioning teeth 16 are fixedly installed on the lower fixing plate 1 of the mechanism corresponding to the position of the snap-fit ​​teeth 8.

[0031] It should be noted that: by rotating the angle adjuster 2, the positioning teeth 16 on the angle adjuster 2 will press against the locking teeth 8, thereby causing the locking teeth 8 to rotate around the locking teeth fixing rivet 7. After the locking teeth 8 is rotated to a certain angle, the contact between the locking teeth 8 and the limiting plate 9 will disengage. At this time, the locking teeth 8 can no longer restrict the movement of the locking teeth limiting plate 9. The connection between the backrest connecting rivet 11 and the plug connecting rivet 13 will cause the seat back connected to the backrest side plate 15 to rotate, thereby adjusting the seat angle. Due to gravity, the seat back will flatten to the desired position. Conversely, by rotating the angle adjuster 2 in the opposite direction, the positioning teeth 16 will no longer press against the locking teeth 8. The locking teeth return spring 4 will lift the locking teeth rivet 5, causing the locking teeth 8 to rotate. The locking teeth 8 will press against the limiting plate 9. The connection between the backrest connecting rivet 11 and the plug connecting rivet 13 will cause the seat back connected to the backrest side plate 15 to rotate, thereby achieving the rotation of the seat back.

[0032] When the seat back needs to be adjusted to its maximum position, rotating the adjuster 2 causes the positioning teeth 16 on the adjuster 2 to press against the retaining teeth 8, thereby causing the retaining teeth 8 to rotate around the retaining tooth fixing rivet 7. After the retaining teeth 8 rotates to a certain angle, the contact point between the retaining teeth 8 and the limiting plate 9 will disengage. At this time, the retaining teeth 8 can no longer restrict the movement of the retaining tooth limiting plate 9, and the seat back connected to the backrest side panel 15 will rotate through the connection between the backrest connecting rivet 11 and the plug connecting rivet 13. To achieve seat angle adjustment, the seat backrest will flatten to the desired position due to gravity. Conversely, by rotating the angle adjuster 2 in the opposite direction, the positioning tooth 16 will release the pressure on the locking tooth 8. The locking tooth return spring 4 will lift the locking tooth rivet 5, causing the locking tooth 8 to rotate. The locking tooth 8 will be pressed against the limiting plate 9. The connection between the backrest connecting rivet 11 and the plug connecting rivet 13 will cause the seat backrest connected to the backrest side plate 15 to rotate, thus achieving the rotation of the seat backrest.

[0033] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A linkage unlocking and folding mechanism, comprising a mechanism fixing lower plate (1) and a backrest side plate (15), characterized in that, It also includes a rotating mechanism (17) and a snap-fit ​​adjustment mechanism (18). The rotating mechanism (17) includes an angle adjuster (2), an upper connecting plate (3) of the angle adjuster, a snap-tooth return spring (4) and a snap-tooth fixing rivet (7). The angle adjuster (2) is rotatably mounted on the top of the mechanism fixing lower plate (1) via a rotating shaft. The upper connecting plate (3) of the angle adjuster is integrally fixed on the top of the angle adjuster (2). The snap-tooth fixing rivet (7) is installed in the middle of the upper connecting plate (3). The snap-tooth return spring (4) is fixedly installed at one end of the snap-tooth fixing rivet (7). An installation plug (10) is installed on the top of the upper connecting plate (3) near the snap-tooth (8). The rotating mechanism (17) further includes a tilting limit pin (6), a toothed limit plate (9), a backrest connecting rivet (11), an upper connecting plate (12) of the adjuster, a plug connecting rivet (13), and an upper connecting plate fixing rivet (14) of the angle adjuster. The middle part of the plug (10) is riveted with the plug connecting rivet (13) by a riveting process. The upper connecting plate (12) of the adjuster is fixedly installed on the backrest side plate (15) by the tilting limit pin (6) and the plug connecting rivet (13). A tilting limit pin (6) is riveted between the backrest side panel (15) and the upper connecting plate (12) of the adjuster. A retaining tooth limit plate (9) is rotatably installed on the backrest side panel (15) through a plug connecting rivet (13). A fixing rivet (14) for the upper connecting plate of the adjuster is installed in the middle of the upper connecting plate (12). A backrest connecting rivet (11) is installed between the retaining tooth limit plate (9) and the backrest side panel (15) through a riveting process. By rotating the adjuster (2), the adjuster... (2) The positioning tooth (16) on the upper part will squeeze the locking tooth (8), thereby driving the locking tooth (8) to rotate around the locking tooth fixing rivet (7). After the locking tooth (8) is rotated at a certain angle, the contact between the locking tooth (8) and the limiting plate (9) will be disengaged. At this time, the locking tooth (8) can no longer restrict the movement of the locking tooth limiting plate (9). The seat back connected to the backrest side plate (15) will be rotated through the connection between the backrest connecting rivet (11) and the plug connecting rivet (13), thereby realizing the adjustment of the seat angle. Due to the weight When force is applied, the seat backrest will be flattened to the desired position. Conversely, by rotating the angle adjuster (2) in the opposite direction, the positioning tooth (16) will release the pressure on the locking tooth (8). The locking tooth return spring (4) will lift the locking tooth rivet (5), which will drive the locking tooth (8) to rotate. The locking tooth (8) will be pressed against the limiting plate (9). The connection between the backrest connecting rivet (11) and the plug connecting rivet (13) will drive the seat backrest connected to the backrest side plate (15) to rotate, thus realizing the rotation of the seat backrest.

2. The linkage unlocking and folding mechanism according to claim 1, characterized in that, The fixed lower plate (1) of the mechanism is a rigid part.

3. The linkage unlocking and folding mechanism according to claim 1, characterized in that, The snap-fit ​​adjustment mechanism (18) includes a snap-fit ​​rivet (5), a snap-fit ​​tooth (8), and a positioning tooth (16). The snap-fit ​​tooth (8) is rotatably installed on the upper connecting plate (3) of the angle adjuster by the snap-fit ​​rivet (14) of the upper connecting plate of the angle adjuster. The snap-fit ​​tooth (8) is riveted to the snap-fit ​​rivet (5) by the riveting process. The snap-fit ​​rivet (5) passes through the upper connecting plate (3) of the angle adjuster. The snap-fit ​​tooth return spring (4) is snapped to the outside of the snap-fit ​​tooth rivet (5) at one end away from the snap-fit ​​tooth fixing rivet (7). The positioning tooth (16) is fixedly installed on the lower fixing plate (1) of the mechanism corresponding to the position of the snap-fit ​​tooth (8).

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