Brand-new unlocking mechanism of seat backrest angle adjuster

Abstract

The brand-new unlocking mechanism of the seat backrest angle adjuster comprises the supporting assembly, the angle adjusting assembly, the synchronizing assembly, the limiting assembly, the switching assembly and the driving assembly, angle adjustment of a seat backrest is achieved through cooperative work of few parts, the production cost is effectively reduced, the production efficiency is improved, and the unlocking mechanism is suitable for popularization and application. Meanwhile, the maintenance frequency of the unlocking device is reduced through few parts, the maintenance cost is effectively reduced, the unlocking device of the seat backrest is more reliable, synchronous unlocking of the two framework angle adjusters is achieved by arranging a synchronous rod, the use feeling of the seat backrest is more comfortable, and the service life of the seat backrest is prolonged. And meanwhile, the synchronous rod is sleeved with the limiting screw and the limiting clamping piece, the synchronous rod is limited, and the limiting rod is effectively prevented from moving.

Description

Technical Field

[0001] The utility model relates to the field of unlocking mechanisms for functional items of commercial vehicle seat assemblies, and in particular to a new unlocking mechanism for a seat back recliner. Background Art

[0002] Seat backrest angle adjustment is a key feature in a seat assembly, allowing the driver to adjust to different sitting positions for a more comfortable driving experience. However, backrest angle adjustment is achieved by unlocking and locking the recliners in the backrest frame. The unlocking mechanism for these recliners is often complex, and the unlocking of the recliners on both sides of the frame is not always synchronized, impacting the vehicle's performance.

[0003] Patent document CN218172052U discloses an unlocking mechanism for an easy-entry seat, comprising an upper connecting plate, a lower connecting plate, and a recliner core. A mounting base is fixedly mounted on the lower connecting plate on a side facing away from the upper connecting plate. A first pin, a second pin, and a stop pin are mounted on the mounting base. The first pin carries a paddle return spring and a rotating paddle, with the paddle return spring hooking onto the mounting base and the rotating paddle, respectively. The second pin carries a bracket return spring and a rotating bracket, with the bracket return spring hooking onto the mounting base and the rotating bracket, respectively. A stop block is mounted on the upper portion of the upper connecting plate. A cable head jack is provided at the rear end of the rotating paddle, and a labyrinth-style cable trough is provided at the rear end of the rotating bracket. The head of the rotating bracket abuts against the head of the rotating paddle or the stop block. Advantageously, the mechanism has a simple structure, a reduced number of components, improved assembly efficiency, and improved overall strength. This solves the problems of the rotating bracket being easily deformed by collisions, and the vehicle cable being easily dislodged and stuck.

[0004] Yet the unlocking mechanism of this seat is still too complicated, has increased production cost and also has maintenance cost. Therefore, we are necessary to improve such a structure, to overcome above-mentioned defect. Utility Model Content

[0005] The purpose of the utility model is to provide a new unlocking mechanism for a seat back recliner to solve the problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A new unlocking mechanism for the seat back recliner, including:

[0008] A supporting assembly, wherein a connection space is provided on a surface of the supporting assembly;

[0009] An angle adjustment component is provided in the support component, and the angle adjustment component drives the support component to adjust the angle;

[0010] Synchronization component, which is arranged in the angle adjustment component and drives each angle adjustment component to unlock synchronously by the synchronization component;

[0011] Limit component, which is arranged on the synchronization component and limits the synchronization component by the limit component;

[0012] Adapter component, which is arranged between the limit component and the support component, and a connection space is arranged on the adapter component;

[0013] Drive component, which is sleeved on the adapter component, and drives the angle adjustment component to unlock through the adapter component by the drive component.

[0014] The present utility model is further configured such that the support component includes:

[0015] Upper skeleton connecting plate, there are a pair of the upper skeleton connecting plates, mounting holes are arranged at the bottom of the upper skeleton connecting plate, and a connection space is arranged at the bottom of the upper skeleton connecting plate;

[0016] Lower skeleton connecting plate, there are a pair of the lower skeleton connecting plates, the lower skeleton connecting plate is arranged below the upper skeleton connecting plate, and a connection space is arranged at the top of the lower skeleton connecting plate.

[0017] The present utility model is further configured such that the angle adjustment component includes:

[0018] Skeleton angle adjuster, there are a pair of the skeleton angle adjusters, one end of the skeleton angle adjuster is arranged in the mounting hole of the upper skeleton connecting plate, the other end of the skeleton angle adjuster is connected to the lower skeleton connecting plate, and the angle between the upper skeleton connecting plate and the lower skeleton connecting plate is adjusted by the skeleton angle adjuster.

[0019] The present utility model is further configured such that the synchronization component includes:

[0020] Synchronization rod, both ends of the synchronization rod are respectively arranged in each skeleton angle adjuster, the cross-section of the synchronization rod is square, a threaded hole is arranged at one end of the synchronization rod, a clamping portion is arranged at the other end of the synchronization rod, the cross-section of the clamping portion is circular, and a connection space is arranged on the surface of the synchronization rod.

[0021] The present utility model is further configured such that the limit component includes:

[0022] Limit screw, which is arranged in the threaded hole of the synchronization rod, and the diameter of the limit screw is larger than the cross-section of the synchronization rod;

[0023] Limit card, which is arranged in the skeleton angle adjuster, the limit card is sleeved on the clamping portion of the synchronization rod, and the synchronization rod is limited by the limit card.

[0024] The utility model is further configured such that the adapter assembly includes:

[0025] The unlocking handle connecting sleeve is arranged at one end away from the clamping part of the synchronization rod. One end of the unlocking handle connecting sleeve abuts against the limit screw, and the other end of the unlocking handle connecting sleeve abuts against the skeleton angle adjuster. A connection space is provided on the surface of the unlocking handle connecting sleeve.

[0026] The utility model is further configured such that the drive assembly includes:

[0027] The unlocking handle is sleeved on the unlocking handle connecting sleeve, and the unlocking handle drives the frame angle adjuster to unlock synchronously.

[0028] The advantages of the present invention are:

[0029] 1. The present invention realizes the angle adjustment of the seat back by means of the cooperation between fewer parts, which effectively reduces the production cost. At the same time, fewer parts reduce the maintenance frequency of the unlocking device, effectively reducing the maintenance cost, making the unlocking device of the seat back more reliable.

[0030] 2. The utility model realizes the synchronous unlocking of the two frame recliners by setting a synchronization rod, making the use of the seat back more comfortable. At the same time, by setting a limit screw and a limit card on the synchronization rod, the synchronization rod is limited, effectively preventing the limit rod from moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of the unlocking mechanism of the new seat back recliner proposed in this utility model.

[0032] Figure 2 This is one of the structural diagrams of the unlocking mechanism of the new seat back recliner proposed in the present invention.

[0033] Figure 3 It is a left side view of the unlocking mechanism of the new seat back recliner proposed by the present invention.

[0034] Figure 4 It is a right side view of the unlocking mechanism of the new seat back recliner proposed by the present invention.

[0035] Figure 5 This is a front view of the unlocking mechanism of the new seat back recliner proposed in the utility model.

[0036] Figure 6 It is a structural schematic diagram of the synchronization rod proposed by the utility model.

[0037] Figure 7 The utility model proposes Figure 2Partial enlarged view at position A in [the figure].

[0038] Figure 8 is proposed by the present utility model Figure 3 Partial enlarged view at position B in [the figure].

[0039] Numerical reference signs: upper connecting plate 110 of the frame, lower connecting plate 120 of the frame, frame angle adjuster 210, synchronizing rod 310, clamping portion 311, limit screw 410, limit card 420, unlocking handle connecting sleeve 510, unlocking handle 610 Specific embodiments

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0041] As Figure 1-8 shown, an unlocking mechanism for a seat back angle adjuster proposed by the present utility model includes a support assembly, an angle adjustment assembly, a synchronization assembly, a limit assembly, a transfer assembly, and a drive assembly. A connection space is provided on the surface of the support assembly. The angle adjustment assembly is disposed in the support assembly, and the support assembly is driven by the angle adjustment assembly to perform angle adjustment. The synchronization assembly is disposed in the angle adjustment assembly, and each angle adjustment assembly is driven by the synchronization assembly to be synchronously unlocked. The limit assembly is disposed on the synchronization assembly, and the synchronization assembly is limited by the limit assembly. The transfer assembly is disposed between the limit assembly and the support assembly, and a connection space is provided on the transfer assembly. The drive assembly is sleeved on the transfer assembly, and the angle adjustment assembly is driven by the drive assembly through the transfer assembly to be unlocked.

[0042] In this embodiment, the support assembly includes an upper connecting plate 110 of the frame and a lower connecting plate 120 of the frame. There are a pair of the upper connecting plates of the frame. An installation hole is provided at the bottom of the upper connecting plate of the frame. A connection space is provided at the bottom of the upper connecting plate of the frame. There are a pair of the lower connecting plates of the frame. The lower connecting plate of the frame is disposed below the upper connecting plate of the frame. A connection space is provided at the top of the lower connecting plate of the frame.

[0043] In this embodiment, the angle adjustment assembly includes a skeleton angle adjuster 210, which is provided with a pair. One end of the skeleton angle adjuster is set in the mounting hole of the upper connecting plate of the skeleton, and the other end of the skeleton angle adjuster is connected to the lower connecting plate of the skeleton. The skeleton angle adjuster is used to adjust the angle between the upper connecting plate of the skeleton and the lower connecting plate of the skeleton. The skeleton angle adjuster is an existing technology and will not be described here.

[0044] In this embodiment, the synchronization assembly includes a synchronization rod 310, the two ends of which are respectively arranged in each skeleton angle adjuster. The cross-section of the synchronization rod is square, one end of the synchronization rod is provided with a threaded hole, and the other end of the synchronization rod is provided with a clamping portion 311. The cross-section of the clamping portion is circular, and a connection space is provided on the surface of the synchronization rod.

[0045] In this embodiment, the limit assembly includes a limit screw 410 and a limit card 420. The limit screw is set in the threaded hole of the synchronization rod. The diameter of the limit screw is larger than the cross-section of the synchronization rod, so that the unlocking handle connecting sleeve on the synchronization rod can be limited. The limit card is set in the skeleton adjuster. The limit card is sleeved on the clamping part of the synchronization rod, and the synchronization rod is limited by the limit card.

[0046] In this embodiment, the adapter assembly includes an unlocking handle connecting sleeve 510, which is arranged at one end away from the locking portion of the synchronization rod. One end of the unlocking handle connecting sleeve abuts against the limit screw, and the other end of the unlocking handle connecting sleeve abuts against the skeleton angle adjuster. A connection space is provided on the surface of the unlocking handle connecting sleeve.

[0047] In this embodiment, the driving assembly includes an unlocking handle 610, which is sleeved on the unlocking handle connecting sleeve, and the unlocking handle drives the frame angle adjuster to be unlocked synchronously.

[0048] The usage process and principle of the present utility model are as follows: the two frame recliners are respectively installed in the frame upper connecting plate and the frame lower connecting plate, the end of the synchronization rod with the threaded hole is assembled with the upper limit screw, the unlocking handle connecting sleeve is passed through the synchronization rod and abutted against one side of the limit screw, the synchronization rod is passed through the center of the recliners on both sides, so that the unlocking handle connecting sleeve abuts against the frame recliner, and then the synchronization rod is clamped through the clamping part by the limit card to ensure that the synchronization rod does not move, and then the unlocking handle is clamped to the unlocking handle connecting sleeve. When the unlocking handle is rotated and pulled, the synchronization rod will be driven to rotate together, and the frame recliners on both sides of the backrest frame are unlocked at the same time.

[0049] In the description of the present utility model, it should be noted that when terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", etc. appear, they should be understood as based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", etc. appear, they are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A brand-new unlocking mechanism for a seat back angle adjuster, characterized in that, Comprising: A support assembly, on the surface of which a connection space is provided; An angle adjustment assembly, which is arranged in the support assembly, and drives the support assembly to adjust the angle; A synchronization assembly, which is arranged in the angle adjustment assembly, and drives each angle adjustment assembly to unlock synchronously; A limit assembly, which is arranged on the synchronization assembly, and limits the synchronization assembly; An adapter assembly, which is arranged between the limit assembly and the support assembly, and a connection space is provided on the adapter assembly; A drive assembly, which is sleeved on the adapter assembly, and drives the angle adjustment assembly to unlock through the adapter assembly.

2. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 1, characterized in that, The support assembly includes: An upper connecting plate of the framework, there are a pair of the upper connecting plates of the framework, mounting holes are provided at the bottom of the upper connecting plates of the framework, and a connection space is provided at the bottom of the upper connecting plates of the framework; A lower connecting plate of the framework, there are a pair of the lower connecting plates of the framework, the lower connecting plates of the framework are arranged below the upper connecting plates of the framework, and a connection space is provided at the top of the lower connecting plates of the framework.

3. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 2, characterized in that, The angle adjustment assembly includes: A framework angle adjuster, there are a pair of the framework angle adjusters, one end of the framework angle adjuster is arranged in the mounting hole of the upper connecting plate of the framework, and the other end of the framework angle adjuster is connected to the lower connecting plate of the framework, and the framework angle adjuster adjusts the angle between the upper connecting plate of the framework and the lower connecting plate of the framework.

4. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 3, characterized in that The synchronization assembly includes: A synchronization rod, both ends of the synchronization rod are respectively arranged in each framework angle adjuster, the cross section of the synchronization rod is square, a threaded hole is provided at one end of the synchronization rod, a clamping portion is provided at the other end of the synchronization rod, the cross section of the clamping portion is circular, and a connection space is provided on the surface of the synchronization rod.

5. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 4, characterized in that The limit assembly includes: A limit screw, which is arranged in the threaded hole of the synchronization rod, and the diameter of the limit screw is larger than the cross section of the synchronization rod; A limit card, which is arranged in the framework angle adjuster, the limit card is sleeved on the clamping portion of the synchronization rod, and the synchronization rod is limited by the limit card.

6. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 5, characterized in that, The adapter assembly includes: An unlocking handle connecting sleeve, which is sleeved on the end far from the clamping portion of the synchronization rod, one end of the unlocking handle connecting sleeve abuts against the limit screw, the other end of the unlocking handle connecting sleeve abuts against the framework angle adjuster, and a connection space is provided on the surface of the unlocking handle connecting sleeve.

7. The unlocking mechanism of a brand-new seat back angle adjuster according to claim 6, characterized in that, The drive assembly includes: An unlocking handle, which is sleeved on the unlocking handle connecting sleeve, and drives the framework angle adjuster to unlock synchronously.

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