A kind of seat easily enters automatic unlocking mechanism
Technical field
The present invention relates to seat automatic unlocking mechanism technical field, easily enter automatic unlocking mechanism in particular to a kind of seat.
Background technology
In the vehicle of current three row's seats, (such as MPV/ tri-arranges SUV) all needs have enough spaces to facilitate the turnover of the 3rd row passenger at second row, and more and more OEM has the function demand that E-entry unlocks automatically. Current seat easily enters automatic unlocking mechanism and mainly contains following several:
(1) see Fig. 1 and Fig. 2, seat shown in Fig. 1 and Fig. 2 easily enters automatic unlocking mechanism, adopting single handle to unlock, its principle of work is: the support 2 driven rotary plectrum 3 that is rotated through of backrest 1 rotates, and rotation plectrum 3 triggers unblock mechanism 4 in rotary course and unlocks. The advantage that this kind of seat easily enters automatic unlocking mechanism is that single handle achieves EZ-entry and backrest turns over flat function. Its shortcoming be to realize backrest turn over flat need first seat entirety to be turned over folding two times after manually make floor latch latch again, process is loaded down with trivial details.
(2) see Fig. 3, dual-handle shown in Fig. 3 unlocks EASYENTRY mechanism, its principle of work is: unlock recliner 20 by backrest release lever 10, backrest 30 rotates and unlocks slideway thus realize EZ-entry function, while unlocking recliner 20 by recliner release lever 40, recliner release lever 40 rotates and avoids backrest plectrum thus avoid slideway to unlock, thus realizes backrest 30 and turn over folding function. Its advantage is that this mechanism both can realize EZ-entry function, it is also possible to realizes backrest and turns over folding function. Its shortcoming is, it is necessary to realize this function by two handles both backrest release lever 10 and recliner release lever 40.
Summary of the invention
It is an object of the invention to that the not enough offer existing for above-mentioned prior art is a kind of realizes EZ-entry by single backrest solution lock box and seat that backrest turns over flat function easily enters automatic unlocking mechanism, this seat easily enters automatic unlocking mechanism and realizes two kinds of unlocking manners by unlocking the difference of backrest angle, that is: when keep unlock backrest flip angle be less than 20 ° time be EZ-entry function, when keep unlock backrest flip angle be greater than 20 ° time be that backrest turns over flat function.
In order to realize foregoing invention object, the technical solution adopted in the present invention is as follows:
A kind of seat easily enters automatic unlocking mechanism, on the backrest frames web plate being arranged on mutual hinge and seat cushion framework web plate, wherein said backrest frames web plate is in order to fixedly mount backrest frames, described seat cushion framework web plate is in order to fixedly mount seat cushion skeleton, and described seat easily enters automatic unlocking mechanism and specifically comprises:
One plectrum roughly triangular in shape, an angle of this plectrum roughly triangular in shape is formed stirs angle, and another angle forms angle of rotation, then an angle forms torsion spring fixed angles;It is described that to stir angle adjacent with described angle of rotation, described angular position of rotation be provided with run through described in the first shaft hole of plectrum roughly triangular in shape, described plectrum roughly triangular in shape cuts with scissors hinge position to the front below described backrest frames web plate by one through the first of described first shaft hole, and described plectrum roughly triangular in shape rotates around described first hinge bearing pin;
One plectrum reset torsion spring, the middle part of described plectrum reset torsion spring is wound on described first hinge bearing pin, and one end of this plectrum reset torsion spring is fixed in described torsion spring fixed angles, and the other end of plectrum reset torsion spring is fixed on described backrest frames web plate;
One unblock drag-line, one end of described unblock drag-line be connected to described in plectrum roughly triangular in shape stir Angle Position, the other end of described unblock drag-line is connected with the release lever that easily enters in single backrest solution lock box;
One swinging strut, the 2nd shaft hole that runs through described swinging strut is offered at the middle part of described swinging strut, top be provided with one outwardly and with the finger of described 2nd shaft hole axis being parallel; The mid-way, rear side of this swinging strut is provided with a torsion spring hangers; Described swinging strut cuts with scissors hinge in position, described seat cushion framework web plate lower middle by one through the 2nd of described 2nd shaft hole, and described swinging strut rotates around described 2nd hinge bearing pin; In releasing process, described finger can be touched by the angle of stirring of described plectrum roughly triangular in shape and drives described swinging strut to rotate;
One swinging strut reset torsion spring, the middle part of described swinging strut reset torsion spring is wound on described 2nd hinge bearing pin, one end of this swinging strut reset torsion spring hangs on described torsion spring hangers, and the other end of swinging strut reset torsion spring is fixed on described seat cushion framework web plate;
The swinging strut gear sheet that one is arranged on described seat cushion framework web plate mid-way, described swinging strut gear sheet is positioned at the front side on described swinging strut top, when described swinging strut is in reset position, contact with described swinging strut baffle plate on front side of described swinging strut top, the top forward rocking motion angle of described swinging strut is limited;
One floor latch unlocks drag-line, and one end that this floor panel unlocks drag-line is connected with the bottom of described swinging strut, and the other end is connected to floor latch and unlocks mechanism.
In a preferred embodiment of the invention, described swinging strut gear sheet is molded directly within described seat cushion framework web plate.
In a preferred embodiment of the invention, below described backrest frames web plate, position to the rear is provided with a unblock drag-line hangers, and the drag-line in described unblock drag-line is hitched on described unblock drag-line hangers.
In a preferred embodiment of the invention, behind the lower section of described seat cushion framework web plate, side is provided with a floor latch and unlocks drag-line hangers, and the drag-line that described floor latch unlocks in drag-line is hitched and unlocked on drag-line hangers on described floor.
In a preferred embodiment of the invention, stir in two limits at angle described in described plectrum roughly triangular in shape is formed, article one, limit is straight flange, another limit is arc-shaped side, during unblock, straight flange can be encountered described finger thus drive described swinging strut to rotate, and when described plectrum resets, described arc-shaped side was slided described finger and carried out go back to position.
Owing to have employed technique scheme, the seat that the present invention realizes EZ-entry by single backrest solution lock box and backrest turns over flat function easily enters automatic unlocking mechanism, this seat easily enters automatic unlocking mechanism and realizes two kinds of unlocking manners by unlocking the difference of backrest angle, both it had been EZ-entry function when keeping unblock backrest flip angle to be less than 20 °, it had been that backrest turns over flat function when keeping unlocking when backrest flip angle is greater than 20 °.
Accompanying drawing explanation
Fig. 1 is the existing seat framing structure schematic diagram being configured with the EASYENTRY mechanism that single handle unlocks.
Fig. 2 is the I place enlarged diagram of Fig. 1.
Fig. 3 be existing be configured with dual-handle unlock EASYENTRY mechanism seat framing structure schematic diagram.
Fig. 4 is configured with the seat framing structure schematic diagram that seat of the present invention easily enters automatic unlocking mechanism.
Fig. 4 a is the I place enlarged diagram of Fig. 4.
Fig. 5 is the decomposing schematic representation that seat of the present invention easily enters automatic unlocking mechanism.
Fig. 5 a is the assembling schematic diagram between backrest frames web plate and plectrum.
Fig. 5 b is the assembling schematic diagram between seat cushion framework web plate and swinging strut.
Fig. 6 is the assembling schematic diagram that seat of the present invention easily enters automatic unlocking mechanism.
Fig. 7 is the schematic diagram that seat of the present invention easily enters that automatic unlocking mechanism is in original state (backrest frames web plate is in vertical state).
Fig. 7 a is that seat of the present invention easily enters seat shape schematic diagram when automatic unlocking mechanism is in original state.
Fig. 8 be seat of the present invention easily enter automatic unlocking mechanism be in start released state schematic diagram. Now unlocking fold mechanism to unclamp subsequently and easily enter release lever in single backrest solution lock box, backrest is translated into, and plectrum roughly triangular in shape returns to the original state of Fig. 7 under plectrum reset torsion spring effect simultaneously.
Fig. 9 be seat of the present invention easily enter automatic unlocking mechanism be in floor latch unlock original state schematic diagram. Plectrum roughly triangular in shape is translated into driven rotary support with backrest and is rotated through floor latch unblock drag-line unblock floor latch around the 2nd hinge bearing pin.
Fig. 9 a is that seat of the present invention easily enters seat shape schematic diagram when automatic unlocking mechanism is in floor latch unblock original state.
Figure 10 is that seat of the present invention easily enters fold mechanism and floor latch in automatic unlocking mechanism and unlocks after completely, and seat folds the view turning over folding.
Figure 10 a is that seat of the present invention easily enters fold mechanism and floor latch in automatic unlocking mechanism and unlocks after completely, and seat folds appearance schematic diagram when turning over folding.
Figure 11 is that seat of the present invention easily enters automatic unlocking mechanism and unlocks fold mechanism and plectrum simultaneously and keep unlocking the original state schematic diagram that backrest overturns more than 20 °.
Figure 12 to Figure 14 follows back movement schematic diagram for unlocking fold mechanism and plectrum rear backrest umklapp process and plectrum simultaneously.
Figure 14 a is that backrest puts seat schematic diagram at ordinary times completely.
Figure 15 to Figure 18 is the process schematic diagram that backrest of the present invention turn to separately vertical state.
Embodiment
See Fig. 4, Fig. 4 a, Fig. 5, Fig. 5 a, Fig. 5 b and Fig. 6, a kind of seat provided in figure easily enters automatic unlocking mechanism, it is arranged on the backrest frames web plate 100 and seat cushion framework web plate 200 that are hinged, wherein backrest frames web plate 100 is in order to fixedly mount backrest frames 300, seat cushion framework web plate 200 is in order to fixedly mount seat cushion skeleton 400, and the front end of seat cushion framework 400 is hinged on seat cushion framework and supports on leg 500. Being locked by fold mechanism 600 between backrest frames web plate 100 and seat cushion framework web plate 200, after fold mechanism 600 is unlocked, backrest frames web plate 100 can drive backrest frames 300 to translate into. The rear side of seat cushion framework 400 is by floor latch 700 and the locking of vehicle body floor (not shown), and after floor latch 700 unlocks, seat cushion framework 400 can carry out turning over folding by seat cushion framework support leg 500 relatively.
In order to realize, EZ-entry and backrest turn over flat function to single backrest solution lock box 800, and it is arranged on side, backrest frames 300 top, and particular location is limited for convenience of operation.The release lever 810 that easily enters in single backrest solution lock box 800 separates two unblock drag-lines 820 and 830, wherein unlocking drag-line 820 and be connected to fold mechanism 600, what unlock that drag-line 830 is connected to plectrum 910 roughly triangular in shape that the seat of the present invention easily enters in automatic unlocking mechanism 900 stirs position, angle 911. Operation easily enters release lever 810, can realize the unblock of fold mechanism 600 and drive plectrum 910 to rotate.
The unblock of floor latch 700 is undertaken by pulling floor latch to unlock drag-line 710, and one end that floor latch unlocks drag-line 710 is connected to the bottom of the swinging strut 920 that the seat of the present invention easily enters in automatic unlocking mechanism 900, drives motion by swinging strut 920.
The seat of the present invention easily enters automatic unlocking mechanism 900 and specifically comprises a plectrum 910 roughly triangular in shape, plectrum reset torsion spring 930, swinging strut 920 and swinging strut reset torsion spring 940.
Especially see Fig. 5 and Fig. 5 a, Fig. 5 b, an angle of plectrum 910 roughly triangular in shape is formed stirs angle 911, and another angle forms angle of rotation 912, and another angle forms torsion spring fixed angles 913; Stirring angle 911 adjacent with angle of rotation 912, formed in two limits stirring angle 911, a limit is straight flange 914, and another limit is arc-shaped side 915. The shaft hole 916 of the plectrum 910 running through roughly triangular in shape it is provided with in angle of rotation 912 position.
During assembling, plectrum 910 roughly triangular in shape is hinged on position to the front below backrest frames web plate 100 by the hinge bearing pin 950 that passes shaft hole 916, and hinge bearing pin 950 is axially limited on backrest frames web plate 100 by jump ring 951. Plectrum 910 roughly triangular in shape rotates around hinge bearing pin 950. The middle part of plectrum reset torsion spring 930 is wound on hinge bearing pin 950, and one end of this plectrum reset torsion spring 930 is fixed in torsion spring fixed angles 913, and the other end is fixed on backrest frames web plate 100.
The shaft hole 921 that one runs through swinging strut 920 is offered at the middle part of swinging strut 920, top be provided with one outwardly and with the finger 922 of shaft hole 921 axis being parallel; The mid-way, rear side of this swinging strut 920 is provided with a torsion spring hangers 923.
During assembling, swinging strut 920 is hinged on position, seat cushion framework web plate 200 lower middle by the hinge bearing pin 960 that passes shaft hole 921, and hinge bearing pin 960 is axially limited on seat cushion framework web plate 200 by jump ring 961. Swinging strut 920 rotates around hinge bearing pin 960.
The middle part of swinging strut reset torsion spring 940 is wound on hinge bearing pin 960, and one end of this swinging strut reset torsion spring 940 hangs on torsion spring hangers 923, and the other end is fixed on seat cushion framework web plate 200.
In order to limit the reset angle of swinging strut 920, a swinging strut gear sheet 210 is had at seat cushion framework web plate 200 mid-way straight forming, swinging strut gear sheet 210 is positioned at the front side on swinging strut 920 top, when swinging strut 920 is in reset position, swinging strut 920 contacts with swinging strut baffle plate 210 on front side of top, and the top forward rocking motion angle of swinging strut 920 is limited.
Unlocking drag-line 830 for the ease of installing, below backrest frames web plate 100, position to the rear is provided with a unblock drag-line hangers 110, unlocks the cover of the drag-line in drag-line 830 831 extension and is unlocking on drag-line hangers 110. Also for ease of convenient floor latch of installing and unlock drag-line 710, behind the lower section of seat cushion framework web plate 200, side is provided with a floor latch and unlocks drag-line hangers 220, and floor latch unlocks the cover of the drag-line in drag-line 710 711 extension and unlocked on drag-line hangers 220 on floor.
The present invention unlocks recliner by the release lever 810 that easily enters in single backrest solution lock box 800, backrest upset under volume spring force effect, in backrest umklapp process, plectrum 910 driven rotary support 920 rotates and unlocks floor latch 700, back rest cushion upset under volume spring effect, thus realize two times and turn over folding, concrete working process is as follows:
1, to turn over the process of folding for two times as follows for backrest and seat cushion:
See Fig. 7, Fig. 7 a, Fig. 8, Fig. 9, Fig. 9 a, Figure 10, Figure 10 a and composition graphs 4, pull and single backrest solution lock box 800 easily enters release lever 810, drag-line 820 pulls fold mechanism 600 by unlocking easily to enter release lever 810 1 aspect, fold mechanism 600 is unlocked, on the other hand stir angle 911 by what unlock that drag-line 830 pulls plectrum 910 backward, force plectrum 910 to turn clockwise. After fold mechanism 600 unlocks, driven forward backrest is less than 20 ° of positions, unclamps and easily enters release lever 810 in single backrest solution lock box 800, now plectrum 910 spinning reduction counterclockwise under plectrum reset torsion spring 930 acts on. Then laid forwards backrest, backrest drives backrest frames web plate 100 also to overturn clockwise by backrest frames 300. In the clockwise umklapp process of backrest frames web plate 100, the plectrum 910 of reset is followed backrest frames web plate 100 and is carried out turning clockwise in process, and the straight flange 914 in plectrum 910 can encounter the finger 922 on swinging strut 920 top. After the straight flange 914 in plectrum 910 encounters the finger 922 on swinging strut 920 top, swinging strut 920 is driven to be rotated counterclockwise by finger 922, the bottom of swinging strut 920 can pull floor latch to unlock drag-line 710, and floor latch unlocks drag-line 710 and floor latch 700 unlocked. After floor latch 700 is unlocked, back rest cushion entirety can be made to carry out the state shown in Figure 10 that turn to, it is achieved to turn over folding two times.
2, the process that backrest fell separately is as follows:
See Figure 11, Figure 12, Figure 13, Figure 14 and Figure 14 a and composition graphs 4, pull and single backrest solution lock box 800 easily enters release lever 810, drag-line 820 pulls fold mechanism 600 by unlocking easily to enter release lever 810 1 aspect, fold mechanism 600 is unlocked, on the other hand stir angle 911 by what unlock that drag-line 830 pulls plectrum 910 backward, force plectrum 910 to turn clockwise. after fold mechanism 600 unlocks, driven forward backrest is greater than 20 ° of positions, does not unclamp simultaneously and easily enters release lever 810 in single backrest solution lock box 800, and now plectrum 910 can not reset under torsion spring 930 acts at plectrum and be rotated counterclockwise and reset. then laid forwards backrest, backrest drives backrest frames web plate 100 also to overturn clockwise by backrest frames 300, and backrest frames web plate 100 overturns clockwise until falling in state shown in Figure 14. backrest frames web plate 100 overturns until falling in state procedure shown in Figure 14 clockwise, hand does not unclamp and easily enters release lever 810 in single backrest solution lock box 800, now plectrum 910 can not reset, do not have the plectrum 910 resetted to follow backrest frames web plate 100 to carry out turning clockwise in process, the top of the horn stirring angle 911 in plectrum 910 can not be encountered the finger 922 on swinging strut 920 top and cross finger 922, now the straight flange 914 in plectrum 910 can not encounter the finger 922 on swinging strut 920 top, swinging strut 920 can not be driven to be rotated counterclockwise, the bottom of swinging strut 920 can not pull floor latch to unlock drag-line 710, floor latch unlocks drag-line 710 and can not floor latch 700 be unlocked.Floor latch 700 does not unlock, and seat cushion can not carry out turning over folding two times. Backrest rotates forward and is greater than 20 °, unclamps and easily enters release lever 810 in backrest solution lock box 800.
3, backrest reseting procedure is as follows:
See Figure 15 to Figure 18, and composition graphs 4, upwards lifting backrest and invertible back support backward, backrest drives backrest frames web plate 100 to overturn counterclockwise by backrest frames 300. Backrest frames web plate 100 carries out in counterclockwise umklapp process, arc-shaped side 915 on plectrum 910 can encounter the finger 922 on swinging strut 920 top, owing to being arc-shaped side, arc-shaped side 915 on plectrum 910 can not be rotated counterclockwise by finger 922 driven rotary support 920, only sliding finger 922, plectrum 910 can turn clockwise. Owing to swinging strut 920 can not rotate counterclockwise, therefore the bottom of swinging strut 920 can not pull floor latch to unlock drag-line 710, and floor latch unlocks drag-line 710 and can not floor latch 700 be unlocked. After the arc-shaped side 915 on plectrum 910 slided finger 922, now plectrum 910 counterclockwise spinning reduction under plectrum reset torsion spring 930 acts on. Then backward invertible back support until in vertical state.
4, the process turning to original state of seat cushion and prior art do not have any difference, as space is limited, repeat no more.