Seat unlocking mechanism and vehicle seat with both easy entry and one-touch reclining functions

Abstract

The invention discloses a seat unlocking mechanism and a car seat with both easy entry and one-touch reclining functions, comprising a recliner assembly, an easy entry mechanism and a one-touch reclining mechanism, wherein the recliner assembly is connected to a backrest frame and a seat frame through an upper connecting plate and a lower connecting plate, respectively, and the easy entry mechanism comprises an unlocking switch and a slide rail unlocking limiting mechanism, wherein the unlocking switch is linked to an unlocking piece of the recliner assembly to unlock the recliner so that the backrest frame can rotate, and the slide rail unlocking limiting mechanism is arranged between the upper connecting plate and the lower connecting plate, so that when the backrest frame rotates to a certain angle, it can be linked to a locking device between the seat frame and the slide rail to unlock and limit the backrest frame to the angle at the same time; the one-touch reclining mechanism comprises a remote unlocking handle, and the remote unlocking handle is linked to an unlocking piece of the recliner assembly to unlock the recliner and can simultaneously cancel the limit on the backrest frame and recline the backrest frame. The invention has a simple structure, low cost, and small space occupation, and can simultaneously realize the easy entry and one-touch reclining functions.

Description

Technical Field

[0001] The invention relates to a seat unlocking mechanism with both easy entry and one-key reclining functions, and also relates to a car seat comprising the seat unlocking mechanism. Background Art

[0002] For SUV and MPV models with three rows of seats, when the third-row passengers enter the car, the middle-row seat backrests need to be rotated forward a certain angle and moved forward a certain distance to make sufficient entry space for the passengers to get on the car.

[0003] For seven-seater SUV and MPV models, in order to expand the trunk space, the middle row seats must also have a folding function, and the unlocking handle of the folded seats is usually set inside the trunk to facilitate users to unlock them.

[0004] At present, the seats on the market that have both easy-entry function and one-touch reclining function mostly have complex structures, a large number of parts, high costs, and occupy a large space. Summary of the invention

[0005] The first object of the present invention is to provide a seat unlocking mechanism with simple structure, low cost, small space occupation, easy entry and one-touch folding functions, which can realize the easy entry and one-touch folding functions at the same time.

[0006] A second object of the present invention is to provide a car seat comprising the above-mentioned seat unlocking mechanism with both easy entry and one-touch reclining functions.

[0007] The first object of the present invention can be achieved by the following technical measures: a seat unlocking mechanism with both easy entry and one-touch reclining functions, characterized in that it includes a recliner assembly, an easy entry mechanism and a one-touch reclining mechanism, the recliner assembly is connected to the backrest frame and the seat frame through an upper connecting plate and a lower connecting plate respectively, the easy entry mechanism includes an unlocking switch and a slide rail unlocking limit mechanism, the unlocking switch is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner so that the backrest frame can be rotated, the slide rail unlocking limit mechanism is arranged between the upper connecting plate and the lower connecting plate, so that when the backrest frame is rotated to a certain angle, it is linked to the locking device between the seat frame and the slide rail to unlock and limit the backrest frame to the angle; the one-touch reclining mechanism includes a remote unlocking handle, the remote unlocking handle is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner and can simultaneously cancel the limit on the backrest frame to recline the backrest frame.

[0008] The present invention has a simple structure, low cost, and small space occupation. It can realize the easy-entry function and the one-touch folding function of the seats at the same time. It is suitable for passenger cars with three rows of seats, and is usually arranged on the middle row or rear seats to facilitate the entry of rear passengers and increase the luggage compartment space. Moreover, the remote unlocking handle that realizes the one-touch folding function can be set at any position of the vehicle according to actual conditions, and is usually set in the luggage compartment, so as to realize the remote unlocking and folding of the middle row seats.

[0009] As a preferred embodiment of the present invention, the recliner assembly includes a recliner, a recliner unlocking piece, and an elastic return member for acting on the backrest frame to automatically fold down after the recliner is unlocked, and the unlocking switch is connected to the recliner unlocking piece via a first cable.

[0010] Preferably, the first cable of the present invention is divided into two branch cables by a first splitter, and the two branch cables are respectively connected to two angle adjuster unlocking pieces, and the two angle adjusters are unlocked simultaneously by operating the unlocking switch to pull the first cable.

[0011] As a preferred embodiment of the present invention, the slide rail unlocking limit mechanism includes a limiting flange, a slide rail unlocking pin, a blocking piece and a slide rail unlocking link, the front end of the upper connecting plate has two protruding parts, the limiting flange is formed by turning outward of one of the protruding parts, the slide rail unlocking pin is arranged on the other protruding part, the blocking piece and the slide rail unlocking link respectively have a reset piece, and the blocking piece and the slide rail unlocking link are both long plate-shaped components, one end of which is coaxially rotatably mounted on the lower connecting plate, the other end of the slide rail unlocking link is connected to the locking device through a second cable, and the slide rail unlocking pin pushes the slide rail unlocking link when following the backrest frame to rotate to a certain angle, and the locking device is unlocked by pulling the second cable so that the seat frame can slide, and at the same time, the other end of the blocking piece abuts against the limiting flange to prevent the backrest frame from continuing to rotate, thereby limiting it at this angle.

[0012] Preferably, the reset member of the baffle of the present invention is a torsion spring, one end of which is fixed to the lower connecting plate and the other end is connected to the baffle, and its function is to restore the baffle to its initial position.

[0013] Preferably, the reset member of the slide rail unlocking link of the present invention is a torsion spring, one end of which is connected to the baffle, and the other end is connected to the slide rail unlocking link, and its function is to restore the slide rail unlocking link to its initial position.

[0014] As a preferred embodiment of the present invention, the remote unlocking handle of the one-touch reclining mechanism is respectively connected to the unlocking plate and the blocking plate of the angle adjuster through a third cable, and the third cable is divided into two branch cables by a second splitter, one of which controls the two branch cables of the first cable through the first splitter, and the other branch cable is connected to the blocking plate.

[0015] Preferably, the unlocking switch of the present invention is arranged on the top of the backrest frame.

[0016] Preferably, the remote unlocking handle of the present invention is arranged in the suitcase.

[0017] The second aspect of the present invention can be achieved through the following technical measures: a car seat comprising the above-mentioned seat unlocking mechanism with both easy entry and one-touch reclining functions, comprising a backrest frame, a seat frame and a slide rail slidably matched with the seat frame, a locking device is provided between the seat frame and the slide rail, and is characterized in that the car seat comprises a recliner assembly, an easy entry mechanism and a one-touch reclining mechanism, the recliner assembly is connected to the backrest frame and the seat frame through an upper connecting plate and a lower connecting plate, respectively, the easy entry mechanism comprises an unlocking switch and a slide rail unlocking limiting mechanism, the unlocking switch is linked to the unlocking piece of the recliner assembly to unlock the recliner so that the backrest frame can be rotated, the slide rail unlocking limiting mechanism is arranged between the upper connecting plate and the lower connecting plate, and can make the backrest frame rotate to a certain angle when the locking device is linked to unlock and limit the backrest frame at the angle; the one-touch reclining mechanism comprises a remote unlocking handle, the remote unlocking handle is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner and can simultaneously cancel the limit on the backrest frame and recline the backrest frame.

[0018] Compared with the prior art, the present invention has the following significant effects:

[0019] (1) The present invention can realize the easy-entry function and the one-button folding function of the seat at the same time, and is suitable for passenger cars with three rows of seats. It is usually arranged on the middle row or the rear row of seats to facilitate the entry of rear passengers and increase the luggage compartment space.

[0020] (2) The invention has a simple structure, a small number of parts, low cost and small space occupation.

[0021] ⑶ The remote unlocking handle for realizing the one-key folding function of the present invention can be set at any position of the vehicle according to actual conditions, usually set in the luggage compartment, and can realize the remote unlocking and folding of the middle row of seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1It is a schematic diagram of the overall structure of the seat unlocking mechanism of the present invention arranged on the seat frame;

[0024] Figure 2 is a schematic structural diagram of the first, second and third cables of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the angle adjuster assembly of the present invention;

[0026] Figure 4 It is a structural exploded diagram of the easy entry mechanism of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the present invention in which the angle adjuster is unlocked when the unlocking switch is pressed;

[0028] Figure 6 It is a structural schematic diagram of the easy entry mechanism movement when the unlocking switch of the present invention is pressed;

[0029] Figure 7 It is a structural schematic diagram of the movement of the easy entry mechanism and the locking device when the backrest frame rotates to a certain angle of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure in which the seat can slide forward after the locking device of the present invention is unlocked;

[0031] Fig. 9 yes Figure 8 Middle A is a partial enlarged schematic diagram;

[0032] Fig.10 It is a schematic diagram of the seat structure after one-button folding of the seat according to the present invention. DETAILED DESCRIPTION

[0033] like Figures 1 to 10 As shown, a seat unlocking mechanism with both easy entry and one-touch reclining functions is provided in the present invention, which is installed on a seat frame. The seat frame includes a backrest frame 1, a seat frame 2 and a slide rail 3. The seat frame 2 and the slide rail 3 are slidably matched. The seat frame 2 can slide on the slide rail 3 by unlocking through a locking device. Conversely, the seat frame 2 cannot slide by locking through a locking device. The locking device is a prior art and will not be described in detail here.

[0034] The seat unlocking mechanism includes a recliner assembly 6, an easy entry mechanism 4 and a one-touch reclining mechanism. The recliner assembly 6 is connected to the backrest frame 1 and the seat frame 2 through an upper connecting plate 6-1 and a lower connecting plate 6-3, respectively. The recliner assembly includes a recliner 6-2, a recliner unlocking piece 6-4 and an elastic return member for acting on the backrest frame 1 to automatically recline after the recliner 6-2 is unlocked. In this embodiment, the elastic return member is a spiral spring 5, which is installed between the backrest frame 1 and the seat frame 2. After the recliner 6-2 is unlocked, the backrest frame 1 can be automatically reclined under the force of the spiral spring 5. The recliner unlocking piece 6-4 is located on one side of the recliner 6-2, and the recliner 6-2 is unlocked or locked by the recliner unlocking piece 6-4. It is a prior art and will not be described in detail here. The upper connecting plate 6-1 and the lower connecting plate 6-3 are respectively connected to the recliner 6-2, wherein the upper connecting plate 6-1 can rotate with the backrest frame 1.

[0035] The easy entry mechanism 4 includes an unlocking switch 7 and a slide rail unlocking limit mechanism. The unlocking switch 7 is arranged on the top of the backrest frame 1 and is operated by pressing upward. The unlocking switch 7 is connected to the recliner unlocking piece 6-4 through a first cable. The first cable is divided into two branch cables 8-2-c and 8-2-d through a first splitter 8-2-b. The section before the first splitter 8-2-b is a cable 8-2-a. The two branch cables 8-2-c and 8-2-d are respectively connected to the two recliner unlocking pieces 6-4. By pressing the unlocking switch 7, the first cable is pulled to unlock the two recliners 6-2 at the same time. The slide rail unlocking limit mechanism includes a limit flange 4-1, a slide rail unlocking pin 4-2, a baffle 4-5, a slide rail unlocking connecting rod 4-8, a bushing 4-6, a limit nut 4-9, and a reset member of the baffle 4-5 and the slide rail unlocking connecting rod 4-8. The front end of the upper connecting plate 6-1 has two extensions, the limit flange 4-1 is formed by turning outwards of one of the extensions, and the slide rail unlocking pin 4-2 is riveted to the other extension. The limit flange 4-1 and the slide rail unlocking pin 4-2 can rotate with the backrest frame 1 The baffle 4-5 and the slide rail unlocking link 4-8 ​​are both long plate-shaped components, one end of which is coaxially rotatably mounted on the rotating shaft 4-3 of the lower connecting plate 6-3. Specifically, this end of the baffle 4-5 is mounted on the bushing 4-6 of the rotating shaft 4-3, and the baffle 4-5 and the slide rail unlocking link 4-8 ​​are separated by the bushing 4-6. The baffle 4-5 and the slide rail unlocking link 4-8 ​​can both rotate around the rotating shaft 4-3, and a limiting nut 4-9 is installed at the outer end of the rotating shaft 4-3 to prevent the slide rail unlocking link 4-8 ​​from falling off. The other end of the blocking piece 4-5 interferes with the limiting flange 4-1. This end of the slide rail unlocking link 4-8 ​​has a protrusion 4-10 that cooperates with the slide rail unlocking pin 4-2. The other end is connected to the locking device through the second cable 8-1. When the slide rail unlocking pin 4-2 follows the backrest frame 1 to rotate to a certain angle, it pushes the protrusion 4-10 of the slide rail unlocking link 4-8, so that the slide rail unlocking link 4-8 ​​rotates to a certain angle, and the locking device is pulled by the second cable 8-1 to unlock. At this time, the seat frame 1 can slide forward on the slide rail 3, and at the same time, the other end of the blocking piece 4-5 contacts the limiting flange 4-1 to prevent the backrest frame 1 from continuing to rotate, thereby limiting it at this angle.

[0036] The baffle 4-5 and the slide rail unlocking link 4-8 ​​use torsion springs 4-4 and 4-7 as reset members, respectively. One end of the reset member of the baffle 4-5 is fixed on the lower connecting plate 6-3, and the other end is connected to the baffle 4-5, and its function is to restore the baffle to its initial position. One end of the reset member of the slide rail unlocking link 4-8 ​​is connected to the baffle 4-5, and the other end is connected to the slide rail unlocking link 4-8, and its function is to restore the slide rail unlocking link to its initial position.

[0037] The one-touch folding mechanism includes a remote unlocking handle 9, which is linked to the recliner unlocking piece 6-4 of the recliner assembly 6 to unlock the recliner 6-2 and simultaneously cancel the limit on the backrest frame 1 to fold the backrest frame 1. Specifically, the remote unlocking handle 9 is connected to the recliner unlocking piece 6-4 and the baffle 4-5 respectively through the third cable 8-3, and the third cable 8-3 is divided into two branch cables 8-3-c and 8-3-d through the second splitter 8-3-b. The section before the second splitter 8-2-b is the cable 8-3-a, one of which controls the two branch cables 8-2-c and 8-2-d of the first cable through the first splitter 8-2-b, and the other branch cable 8-3-d is connected to the baffle 4-5. When the remote unlocking handle 9 is pulled, the third cable 8-3 can simultaneously unlock the recliner 6-2 and rotate the baffle 4-5, so that the limit flange 4-1 that rotates with the backrest frame 1 will not be blocked by the baffle 4-5. The remote unlocking handle 9 can be set at any position of the vehicle according to actual conditions, usually in the trunk, and can realize the remote unlocking and folding of the middle row seats.

[0038] A car seat comprises a seat frame, which is mainly composed of a backrest frame 1, a seat frame 2 and a slide rail 3 slidably matched with the seat frame 2. A locking device is provided between the seat frame 2 and the slide rail 3. The seat unlocking mechanism with the above-mentioned easy-entry and one-touch reclining functions is provided on the seat frame.

[0039] The working process of the present invention is as follows:

[0040] (1) When the unlocking switch 7 on the backrest frame 1 is pressed, the first cable 8-2 pulls the left and right recliner unlocking pieces 6-4, so that the two recliners 6-2 are unlocked at the same time; see Figure 7 After the recliner 6-2 is unlocked, the backrest frame 1 is laid down under the spring force of the spiral spring 5. When it is laid down to a certain angle, the slide rail unlocking link 4-8 ​​is pushed and rotated by the slide rail unlocking pin 4-2. When the slide rail unlocking link 4-8 ​​rotates to a certain angle, the locking device on the slide rail is pulled by the second cable 8-1 to unlock; see Figure 8 and 9 After the locking device is unlocked, the limit flange 4-1 is limited by the blocking piece 4-5, the seat back cannot continue to rotate, and the passenger can push the seat to slide forward a certain distance to achieve the easy entry function.

[0041] (2) See also Figure 1 , Figure 2 , Figure 4 and Fig.10, pull the remote unlocking handle 9, unlock the angle adjuster and rotate the baffle 4-5 through the third cable 8-3, the baffle 4-5 will no longer block the limit flange 4-1, and the backrest frame 1 will be directly laid down under the spring force of the spiral spring 5, realizing the one-key laying down function.

[0042] The embodiments of the present invention are not limited thereto. According to the above contents of the present invention, in accordance with the common technical knowledge and conventional means in the art, without departing from the above basic technical concept of the present invention, the specific structures of the slide rail unlocking limit mechanism, the unlocking switch linkage recliner unlocking piece, and the remote unlocking handle linkage recliner unlocking piece of the present invention have other embodiments. Therefore, the present invention also has various forms of modification, replacement or change, all of which fall within the scope of protection of the present invention.

Claims

1. A seat unlocking mechanism with both easy entry and one-touch reclining functions, characterized in that: It includes a recliner assembly, an easy-entry mechanism and a one-touch reclining mechanism, wherein the recliner assembly is connected to the backrest frame and the seat frame through an upper connecting plate and a lower connecting plate respectively, and the easy-entry mechanism includes an unlocking switch and a slide rail unlocking limit mechanism, wherein the unlocking switch is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner so that the backrest frame can be rotated, and the slide rail unlocking limit mechanism is arranged between the upper connecting plate and the lower connecting plate, so that when the backrest frame is rotated to a certain angle, it can be linked to the locking device between the seat frame and the slide rail to unlock and limit the backrest frame to the angle; the one-touch reclining mechanism includes a remote unlocking handle, which is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner and can simultaneously cancel the limit on the backrest frame to recline the backrest frame; the slide rail unlocking limit mechanism The structure includes a limiting flange, a slide rail unlocking pin, a blocking piece and a slide rail unlocking link, the front end of the upper connecting plate is provided with two protruding parts, the limiting flange is formed by turning outward of one of the protruding parts, the slide rail unlocking pin is arranged on the other protruding part, the blocking piece and the slide rail unlocking link respectively have a reset piece, and the blocking piece and the slide rail unlocking link are both long plate-shaped components, one end of which is coaxially rotatably mounted on the lower connecting plate, and the other end of the slide rail unlocking link is connected to the locking device through a second cable, and the slide rail unlocking pin pushes the slide rail unlocking link when following the backrest frame to rotate to a certain angle, and the locking device is pulled by the second cable to unlock the seat frame so that the seat frame can slide, and at the same time, the other end of the blocking piece abuts against the limiting flange to prevent the backrest frame from continuing to rotate, thereby limiting it to this angle.

2. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 1, characterized in that: The recliner assembly includes a recliner, a recliner unlocking piece, and an elastic restoring member for acting on the backrest frame to automatically fall down after the recliner is unlocked. The unlocking switch is connected to the recliner unlocking piece via a first cable.

3. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 2, characterized in that: The first cable is divided into two branch cables by a first splitter, and the two branch cables are respectively connected to two angle adjuster unlocking pieces. By operating the unlocking switch to pull the first cable, the two angle adjusters are unlocked at the same time.

4. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 3, characterized in that: The reset member of the baffle is a torsion spring, one end of which is fixed on the lower connecting plate, and the other end is connected to the baffle.

5. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 4, characterized in that: The reset member of the slide rail unlocking connecting rod is a torsion spring, one end of the reset member of the slide rail unlocking connecting rod is connected to the blocking piece, and the other end is connected to the slide rail unlocking connecting rod.

6. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 5, characterized in that: The remote unlocking handle of the one-touch reclining mechanism is respectively connected to the angle adjuster unlocking plate and the blocking plate through a third cable. The third cable is divided into two branch cables through a second splitter, one of which controls the two branch cables of the first cable through the first splitter, and the other branch cable is connected to the blocking plate.

7. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 6, characterized in that: The unlocking switch is arranged on the top of the backrest frame.

8. The seat unlocking mechanism with both easy entry and one-touch reclining functions according to claim 7, characterized in that: The remote unlocking handle is arranged in the luggage box.

9. A car seat comprising the seat unlocking mechanism with both easy entry and one-touch reclining functions as claimed in claim 1, comprising a backrest frame, a seat frame and a slide rail slidably matched with the seat frame, a locking device is provided between the seat frame and the slide rail, characterized in that: The car seat includes a recliner assembly, an easy-entry mechanism and a one-touch reclining mechanism. The recliner assembly is connected to a backrest frame and a seat frame via an upper connecting plate and a lower connecting plate, respectively. The easy-entry mechanism includes an unlocking switch and a slide rail unlocking and limiting mechanism. The unlocking switch is linked to an unlocking piece of the recliner assembly to unlock the recliner so that the backrest frame can rotate. The slide rail unlocking and limiting mechanism is arranged between the upper connecting plate and the lower connecting plate so that when the backrest frame is rotated to a certain angle, it is linked to a locking device to unlock and limit the backrest frame to the angle. The one-touch reclining mechanism includes a remote unlocking handle, and the remote unlocking handle is linked to the recliner unlocking piece of the recliner assembly to unlock the recliner and simultaneously cancel the limit on the backrest frame to recline the backrest frame.

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