CN214647726U

CN214647726U - Mechanism for forward overturning, forward sliding and retaining whole automobile seat after unlocking

Info

Publication number: CN214647726U
Application number: CN202121019031.3U
Authority: CN
Inventors: 杨英; 刘宇航
Original assignee: Chongqing Shuangying Automobile Seat Co ltd
Current assignee: Chongqing Shuangying Automobile Seat Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-09
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a mechanism for forwards overturning and forwards sliding and keeping a whole chair after unlocking an automobile seat, which comprises a backrest framework, a seat frame framework, a buckle assembly, a slide rail return spring, an upper slide rail assembly, a lower slide rail assembly, a slide rail unlocking handle assembly, seat frame lock assemblies, an unlocking harness, a lock hook, an upper rotating support and a lower rotating support, wherein two seat frame lock assemblies are arranged below the rear end of the seat frame framework, the lock hook is arranged on the rear end of the upper slide rail assembly, each seat frame lock assembly is correspondingly provided with one lock hook, the unlocking harness is arranged between the buckle assembly and the two seat frame lock assemblies, two upper rotating supports are arranged below the front end of the seat frame framework, the lower rotating support is fixedly arranged on the upper slide rail assembly, each upper rotating support is correspondingly provided with a lower rotating support, the inner side of each upper rotating support is fixedly provided with a slide rail shifting piece, the other end of the slide rail unlocking shifting piece is hooked on the slide rail unlocking handle component.

Description

Mechanism for forward overturning, forward sliding and retaining whole automobile seat after unlocking

Technical Field

The utility model belongs to the technical field of car seat spare part, concretely relates to whole chair overturns forward after car seat unblock and slides forward and keep mechanism.

Background

In a two-door four-seat automobile, in order to facilitate the entrance and exit of the second row of people, the co-pilot seat is often provided with a one-key avoidance mechanism. The one-key avoidance system generally behaves in the following manner: the seat automatically slides forwards after being unlocked; the seat automatically slides forwards after being unlocked, and the backrest is adjusted forwards; the seat integrally rotates forwards around the front rotating point after being unlocked; the seat automatically slides forwards after being unlocked and integrally rotates forwards around the front rotating point; after the seat is unlocked, the backrest is laid forwards and drives the whole body to rotate forwards around the front rotating point. However, the size of the vehicle door is limited because the vehicle type is two doors and four seats, and the space reserved by the existing avoidance mode is not large enough and is inconvenient for the back row of people to get in and out.

SUMMERY OF THE UTILITY MODEL

The utility model discloses plan to provide a whole chair overturns forward after car seat unblock and slides forward and the mechanism that keeps makes the front passenger seat not only slide forward, still overturns, makes it can reserve bigger space, makes things convenient for back row personnel's business turn over.

Therefore, the utility model discloses the technical scheme who adopts does: a mechanism for forwards overturning and forwards sliding and keeping a whole seat after an automobile seat is unlocked comprises a backrest framework, a seat frame framework, a handle buckling assembly, a sliding rail return spring, an upper sliding rail assembly, a lower sliding rail assembly, a sliding rail unlocking handle assembly, seat frame lock assemblies, an unlocking wire harness, a locking hook, an upper rotating support and a lower rotating support, wherein the lower part of the seat frame framework is fixedly arranged on the upper sliding rail assembly, the upper sliding rail assembly can slide back and forth on the lower sliding rail assembly, the sliding rail return spring is used for enabling the upper sliding rail assembly to slide forwards along the lower sliding rail assembly when unlocking is carried out, the handle buckling assembly is arranged at the position, close to the upper end, of the backrest framework, two seat frame lock assemblies are fixedly arranged at the left and right intervals below the rear end of the seat frame framework, the locking hook is arranged at the rear end of the upper sliding rail assembly, each seat frame lock assembly is correspondingly provided with one locking hook, and the seat frame lock assemblies are matched with the locking hooks to enable the rear end of the seat frame framework to be locked on the upper sliding rail assembly, an unlocking wire harness is arranged between the handle component and the two seat frame lock components; two upper rotating supports are fixedly arranged below the front end of the seat frame framework at the left and right sides at intervals, the lower rotating support is fixedly arranged on an upper sliding rail assembly, each upper rotating support is correspondingly provided with one lower rotating support, a seat overturning spring used for pulling a seat to overturn forwards is arranged between each upper rotating support and each lower rotating support, the rear end of the seat overturning spring is limited by a seat frame lock assembly, a sliding rail unlocking plectrum is fixedly arranged on the inner side of each upper rotating support, and the other end of the sliding rail unlocking plectrum is hooked on a sliding rail unlocking handle assembly; when the release attacker subassembly, make seat frame lock subassembly unblock through the unblock pencil for the rear end of seat frame skeleton can be lifted up, when the seat frame lock subassembly is by the unblock, the restriction of seat upset spring is cancelled, and under the effect of seat upset spring, the seat begins the upset, drives slide rail unblock handle assembly through last rotating support and slide rail unblock plectrum and rotates, makes the last slide rail subassembly by the unblock.

Preferably, a rotation limiting block is arranged on the outer side of the upper rotation support on the left side, a limiting support rod corresponding to the rotation limiting block is arranged on the lower rotation support on the left side, the limiting support rod is provided with a sliding block through a connecting assembly, a limiting guide support is fixedly arranged at the front end of the lower sliding rail assembly on the left side, and a sliding groove for the sliding block to slide upwards in an inclined mode is formed in the limiting guide support; when sitting frame skeleton when sliding forward, the sliding block is along with sliding forward together to the spacing guide bracket of cunning slides to the restriction point along the spout simultaneously, and spacing bracing piece rotates under the effect of sliding block through coupling assembling this moment, forms rotatory spacing with rotatory stopper.

Further preferably, coupling assembling includes spacing connecting rod, spacing trigger bar, the middle part of spacing bracing piece articulates there is spacing connecting rod, the other end of spacing connecting rod articulates at the middle part of spacing trigger bar, the one end of spacing trigger bar articulates there is the sliding block, the other end of spacing trigger bar articulates at the trigger bar installing support, the trigger bar installing support is fixed to be set up on last slide rail assembly.

More preferably, the sliding block is a roller.

The utility model has the advantages that: when the handle component is unlocked, the seat frame lock component and the lock hook are unlocked through the unlocking harness, so that the rear end of the seat frame framework can be lifted, the limitation of the seat turnover spring is cancelled when the seat frame lock component is unlocked, the seat turnover spring drives the seat to turn over, the seat frame framework rotates forwards to drive the upper rotating support to rotate forwards, the upper rotating support rotates forwards to drive the sliding rail unlocking poking piece to rotate, the sliding rail unlocking poking piece rotates to drive the sliding rail unlocking handle component to rotate, the upper sliding rail component is unlocked, and the seat is driven to slide forwards under the action of the sliding rail return spring; the whole seat can be turned and slid forwards after being unlocked by one key, so that a larger space is reserved, and the back row of people can conveniently get in and out.

Drawings

Fig. 1 is a schematic structural diagram of the present invention (the seat is in use).

Fig. 2 is the schematic view of the installation of the upper and lower rotating frames (the seat is in the use state, and the upper sliding rail assembly is in the locking state).

Fig. 3 is the schematic view of the middle seat frame and the upper slide rail assembly (the seat is in the use state, and the upper slide rail assembly is in the locking state).

Fig. 4 is a schematic view of the slide rail assembly of the structure of fig. 2 in an unlocked state.

Fig. 5 is a side view of fig. 3.

FIG. 6 is a schematic view of the seat of FIG. 5 in a rear row accessible state.

Fig. 7 is a second schematic structural diagram (the seat is in a rear row accessible state) of the present invention.

Fig. 8 is a schematic view of fig. 7 from another perspective.

Fig. 9 is a schematic view from another perspective of fig. 1.

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

as shown in fig. 1 to 9, a mechanism for enabling an entire unlocked car seat to be forwards turned and forwards slid and held mainly comprises a backrest framework 1, a seat frame framework 2, a handle component 3, a slide rail return spring 4, an upper slide rail component 5, a lower slide rail component 6, a slide rail unlocking handle component 7, a seat frame lock component 8, an unlocking wire harness 9, a lock hook 10, an upper rotating support 11, a lower rotating support 12, a seat turning spring 13 and a slide rail unlocking plectrum 14.

Wherein sit fixed the setting in frame skeleton 2 below on last slide rail set 5, go up slide rail set 5 and can slide around on slide rail set 6 down, slide rail return spring 4 is used for going up slide rail set 5 when the unblock and slides along slide rail set 6 down forward, and attacker's subassembly 3 sets up and is close to upper end position department at back skeleton 1, and slide rail unblock handle assembly 7 is used for the locking of last slide rail set 5, above being prior art, no longer gives unnecessary detail here.

Fixed two seat frame lock subassemblies 8 that are provided with at the interval about sitting frame skeleton 2 rear end below, latch hook 10 sets up on last sliding rail set 5 rear end, and every seat frame lock subassembly 8 all corresponds and is provided with a latch hook 10, the cooperation of seat frame lock subassembly 8 and latch hook 10 makes sitting frame skeleton 2 rear end lock on last sliding rail set 5, be provided with unblock pencil 9 between attacker's subassembly 3 and two seat frame lock subassemblies 8, when unblock attacker's subassembly 3, make seat frame lock subassembly 8 unblock through unblock pencil 9, make the rear end of sitting frame skeleton 2 can be lifted, make it can two seat frame lock subassemblies 8 of unblock through an unblock pencil 9, realize a key unblock.

Two upper rotating supports 11 are fixedly arranged on the lower portion of the front end of the seat frame framework 2 at the left side and the right side at intervals, a lower rotating support 12 is fixedly arranged on the upper sliding rail assembly 5, each upper rotating support 11 is correspondingly provided with one lower rotating support 12, the upper rotating supports 11 and the lower rotating supports 12 are connected through bolts and bushings, a seat overturning spring 13 used for pulling a seat to overturn forwards is arranged between the upper rotating supports 11 and the lower rotating supports 12, the rear end of the seat overturning spring 13 is limited by a seat frame lock assembly 8, a sliding rail unlocking shifting piece 14 is fixedly arranged on the inner side of each upper rotating support 11, and the other end of the sliding rail unlocking shifting piece 14 is hooked on the sliding rail unlocking handle assembly 7. When the seat frame lock assembly 8 is unlocked, the limitation of the seat overturning spring 13 is cancelled, and the upper sliding rail assembly 5 is unlocked by driving the sliding rail unlocking handle assembly 7 to rotate through the upper rotating bracket 11 and the sliding rail unlocking plectrum 14, so that the seat can slide forwards when being overturned.

A rotary limiting block 16 is arranged on the outer side of the upper left rotary support 11, a limiting support rod 17 corresponding to the rotary limiting block 16 is arranged on the lower left rotary support 12, a sliding block 15 is arranged on the limiting support rod 17 through a connecting assembly, a limiting guide support 18 is fixedly arranged at the front end of the lower left sliding rail assembly 6, and a sliding groove 18a for the sliding block 15 to slide upwards in an inclined mode is arranged on the limiting guide support 18. When the seat frame framework 2 slides forwards, the sliding block 15 slides forwards along with the seat frame framework and slides to the limiting guide support 18, and simultaneously slides to a limiting point along the sliding groove 18a, the upper sliding rail assembly 5 also reaches the foremost end, at the moment, the limiting support rod 17 rotates under the action of the sliding block 15 through the connecting assembly to form a rotating limiting position with the rotating limiting block 16, so that the seat is prevented from being overturned backwards continuously, the seat can be kept in a rear-row accessible state, and the rear-row personnel are prevented from being accidentally injured when entering and exiting.

The concrete structure of coupling assembling includes limit connecting rod 19, limit trigger bar 20, it has limit connecting rod 19 to articulate in limit supporting rod 17's middle part, limit connecting rod 19's the other end articulates at limit trigger bar 20's middle part, limit trigger bar 20's one end articulates there is sliding block 15, limit trigger bar 20's the other end articulates at trigger bar installing support 21, trigger bar installing support 21 is fixed to be set up on last sliding rail set 5, through limit connecting rod 19 and limit trigger bar 20's double-link, limit supporting rod 17 rotates when realizing sliding block 15 upwards-inclined slip.

To reduce the friction of the slider when sliding on the upper track assembly 5, the slider 15 is a roller.

Because the upper sliding rail assembly 5 only slides back and forth, the sliding rail return spring 4 is a tension spring. Because the seat overturns under the drive of seat upset spring 13, consequently seat upset spring 13 adopts the torsional spring, and the both ends of torsional spring are restricted by last rotating bracket 11 and lower rotating bracket 12 respectively, and last rotating bracket 11 is restricted by seat frame lock subassembly 8 for the torsional spring is indirectly restricted by seat frame lock subassembly 8, and after seat frame lock subassembly 8 unblock, the restriction cancellation of torsional spring makes it can drive whole seat and realize the upset.

The working process of the whole mechanism is as follows:

when the seat is in a rear row accessible state from a use state, the buckle handle assembly 3 is unlocked, then the seat frame lock assembly 8 is unlocked (namely, the seat frame lock assembly 8 is separated from the lock hook 10) under the driving of the unlocking wire harness 9, the rear end of the seat frame framework 2 can be lifted in the state, the seat frame lock assembly 8 is unlocked, and the limitation to the seat turnover spring 13 is removed, the seat is turned forwards under the action of the seat turning spring 13, the seat turns and simultaneously drives the seat frame framework 2 to rotate forwards, so that the upper rotating bracket 11 rotates to drive the sliding rail unlocking shifting piece 14 and the rotating limiting block 16 to rotate, the sliding rail unlocking shifting piece 14 rotates to drive the sliding rail unlocking handle component 7 to rotate, the unlocking of the upper sliding rail component 5 is realized, then under the action of the slide rail return spring 4, the upper slide rail assembly 5 is driven to slide forwards along the lower slide rail assembly 6, so that the seat can slide forwards while turning forwards; when the seat slides forwards, the roller 15 is driven to slide forwards and slide onto the limiting guide bracket 18, and slide upwards along the sliding groove 18a to the end point of the sliding groove 18a, at the moment, the upper sliding rail assembly 5 reaches the foremost end and cannot slide forwards continuously, when the roller 15 slides upwards in an inclined manner, the limiting trigger rod 20 is driven to rotate, the limiting trigger rod 20 rotates to drive the limiting support rod 17 to rotate through the limiting connecting rod 19, so that the limiting support rod 17 and the rotating limiting block 16 rotating forwards form a rotating limiting position together, the seat cannot rotate backwards, and the back row can enter and exit state is maintained;

the seat is in a use state from a rear row in-out state, the seat is pulled to slide backwards to a use position, at the moment, the upper slide rail assembly 5 slides backwards to drive the roller 15 to withdraw from the limit guide bracket 18 along the sliding groove 18a to drive the limit trigger rod 20 to rotate back, the limit trigger rod 20 rotates back to drive the limit support rod 17 to rotate back through the limit connecting rod 19, the limit support rod 17 is led to withdraw from the limit of the rotation limit block 16, the seat is pulled to turn backwards to the use state, the backrest framework 1 is pressed downwards to drive the seat frame framework 2 to press downwards, the seat frame lock assembly 8 is locked on the lock hook 9, when the seat turns backwards, the upper rotary bracket 11 also rotates along with the seat frame framework 2, the slide rail unlocking plectrum 14 and the rotation limit block 16 rotate simultaneously, the slide rail unlocking plectrum 14 rotates to enable the slide rail unlocking handle 7 to rotate, and the upper slide rail assembly 5 is in a locking state, when the sliding rail return spring 4 is in a limited state and the seat frame lock assembly 8 is in a locked state, the seat overturning spring 13 and the rotary limiting block 16 rotate, the clamping point on the rotary limiting block 16 and the limiting support rod 17 after returning form limiting, and the roller is guaranteed to return to the initial position, so that the roller can correctly enter the sliding groove 18a when unlocking next time.

Claims

1. The utility model provides a whole chair overturns forward mechanism that slides and keep behind car seat unblock, includes back skeleton (1), sits frame skeleton (2), attacker subassembly (3), slide rail return spring (4), goes up slide rail subassembly (5), slide rail subassembly (6), slide rail unblock handle components (7) and unblock pencil (9) down, sit fixed the setting in frame skeleton (2) below on last slide rail subassembly (5), it can slide around sliding on slide rail subassembly (6) down to go up slide rail subassembly (5), slide rail return spring (4) are used for going up slide rail subassembly (5) and slide forward along lower slide rail subassembly (6) when the unblock, attacker subassembly (3) set up and are close to upper end position department in back skeleton (1), its characterized in that: the seat frame locking device comprises a seat frame locking assembly (8) and locking hooks (10), wherein two seat frame locking assemblies (8) are fixedly arranged below the rear end of a seat frame framework (2) at the left and right sides at intervals, the locking hooks (10) are arranged at the rear end of an upper sliding rail assembly (5), each seat frame locking assembly (8) is correspondingly provided with one locking hook (10), the rear end of the seat frame framework (2) is locked on the upper sliding rail assembly (5) through the matching of the seat frame locking assemblies (8) and the locking hooks (10), an unlocking harness (9) is arranged between each locking handle assembly (3) and each seat frame locking assembly (8), and when each locking handle assembly (3) is unlocked, the seat frame locking assemblies (8) are unlocked through the unlocking harness (9), so that the rear end of the seat frame framework (2) can be lifted;

the seat frame is characterized by further comprising an upper rotating support (11) and a lower rotating support (12), two upper rotating supports (11) are fixedly arranged below the front end of the seat frame framework (2) at the left side and the right side at intervals, the lower rotating supports (12) are fixedly arranged on the upper sliding rail assembly (5), each upper rotating support (11) is correspondingly provided with one lower rotating support (12), a seat overturning spring (13) used for pulling a seat to overturn forwards is arranged between each upper rotating support (11) and each lower rotating support (12), the rear end of each seat overturning spring (13) is limited by a seat frame lock assembly (8), a sliding rail unlocking shifting piece (14) is fixedly arranged on the inner side of each upper rotating support (11), and the other end of each sliding rail unlocking shifting piece (14) is hooked on a sliding rail unlocking handle assembly (7); when the seat frame lock assembly (8) is unlocked, the limitation of the seat overturning spring (13) is cancelled, the seat starts to overturn under the action of the seat overturning spring (13), and the upper sliding rail assembly (5) is unlocked by driving the sliding rail unlocking handle assembly (7) to rotate through the upper rotating bracket (11) and the sliding rail unlocking plectrum (14).

2. The mechanism for the whole seat to slide forward and hold after unlocking the car seat according to claim 1, wherein: a rotary limiting block (16) is arranged on the outer side of the upper rotary support (11) on the left side, a limiting support rod (17) corresponding to the rotary limiting block (16) is arranged on the lower rotary support (12) on the left side, a sliding block (15) is arranged on the limiting support rod (17) through a connecting assembly, a limiting guide support (18) is fixedly arranged at the front end of the lower sliding rail assembly (6) on the left side, and a sliding groove (18a) for the sliding block (15) to slide upwards in an inclined mode is arranged on the limiting guide support (18); when the seat frame framework (2) slides forwards, the sliding block (15) slides forwards along with the seat frame framework and slides to the limiting guide support (18) and slides to a limiting point along the sliding groove (18a), and at the moment, the limiting support rod (17) rotates under the action of the sliding block (15) through the connecting component to form a rotating limiting position with the rotating limiting block (16).

3. The mechanism for the whole seat to slide forward and hold after unlocking the car seat according to claim 2, wherein: coupling assembling includes spacing connecting rod (19), spacing trigger bar (20), the middle part of spacing bracing piece (17) articulates there is spacing connecting rod (19), the other end of spacing connecting rod (19) articulates at the middle part of spacing trigger bar (20), the one end of spacing trigger bar (20) articulates there is sliding block (15), the other end of spacing trigger bar (20) articulates at trigger bar installing support (21), trigger bar installing support (21) are fixed to be set up on last sliding rail set spare (5).

4. The mechanism for the whole seat to slide forward and hold after unlocking the car seat according to claim 2 or 3, wherein: the sliding block (15) adopts a roller.