A kind of Vehicular turnover type desk platform
Technical field
The present invention relates to a kind of automotive seat, particularly relate to a kind of Vehicular turnover type desk platform, can increase the use function of automotive seat.
Background technology
Automotive interior is less because of the space, generally all considers some multi-functional facilities are set, and when taking into full account occupant's traveling comfort, also improves as far as possible the convenience that the automotive interior facility brings to the occupant.I.e. wherein comparatively practical design of tables' setting in the automobile.In the prior art, the tables in the automobile arrange and usually are Jackstay type or collapsible.
Notification number is that the Chinese utility model patent of CN2618806Y discloses a kind of automotive seats with back table, comprise mounting, cushion and backrest, upper level in the backrest back is arranged with hinge page, hinge page is captiveed joint with backrest on one side, the hinge page another side is captiveed joint with the adjacent side of back table, and the travel(l)ing rest of a both sides symmetry is arranged in the bottom of backrest, and the hinge of support two ends and backrest both sides is hinged, bending is closed backward respectively near hinge, and does 180 ° of rotations in automotive seats backrest back around hinge.The technical scheme of this utility model can lie prostrate at back table long-distance passenger and has a rest owing to designed back table when tired and sleepy, also can utilize back table to place thing.In back table time spent not, can fold easily, do not account for usage space, can not affect passenger's activity yet.
Notification number is that the Chinese utility model patent of CN201376514Y discloses a kind of automobile seat-desk of sleeping of lying prone, constructional feature is to be provided with table at the back side of front-seat motor vehicle seat back, annular brace bar and the handrail bearing surface that can supply to support table, can be for the axle of automobile table rotation, the table back is provided with groove, the upper end of annular brace bar can rotate in groove, the lower end of annular brace bar can be in automobile back lower recess rotation, by annular brace bar and handrail bearing surface so that table can bear the weight that can lie prone and sleep and carry baggages for the people of back row seats.
Above-mentioned two kinds of technical schemes all can satisfy the interior occupant of automobile to a certain extent to tables' demand, but still have unsatisfactory part.Tables on the above-mentioned automotive seat all are arranged on the back of automotive seat, and only can offer the rear row occupant use that tables install seat, and front-row occupant is because the benefit that this facility brings to the occupant can for installing, can't be enjoyed without back of seat in the front row.
Summary of the invention
The technical problem to be solved in the present invention provides the reversible tables that use in a kind of automobile, it is installed on the motor vehicle seat back, not only can satisfy rear row occupant use but also can be by upset for front-row occupant, thereby front-row occupant can't use the interior tables' of car problem in the solution prior art.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: a kind of Vehicular turnover type desk platform, and it comprises two swing arms, curtain plate and curtain plate furling mechanism; One end of described two swing arms is articulated in respectively the both sides of motor vehicle seat back; Described two swing arms are located by the rotation positioning device on the both sides that are arranged on described motor vehicle seat back, and are provided with front level attitude, rear level attitude and reception position; Described curtain plate furling mechanism is connected across between two other ends of swing arm, is provided with chute and curtain plate detent mechanism in the inboard of described two swing arms, and described curtain plate is wound in the described curtain plate furling mechanism, and launches or contraction by described chute slip; After described curtain plate launches, by described curtain plate detent mechanism location.By this technical scheme, the tables that mainly are made of curtain plate can be equipped with in front level attitude, rear level attitude and reception position by swing arm and rotation positioning device, take in requirement when it realizes respectively that front-row occupant, rear row occupant use and do not use.When tables carried out the front and back upset, curtain plate can prevent from interfering because of stretching out with the motor vehicle seat back top of curtain plate by curtain plate furling mechanism income; In addition, because the income of curtain plate makes tables become a framework fully, when reception position, the curtain plate furling mechanism can be taken in the seat bottom space, thereby can not take rear row occupant's usage space.
As a kind of optimal technical scheme of the present invention, described curtain plate furling mechanism comprises a furling tube, furls axle, furls torsion spring and support; The cross-sectional plane of described furling tube is the C font, is provided with a longitudinally curtain plate notch; Described support is fixed on described furling tube both-side opening place, the described axle that furls is articulated on the described support, the described torsion spring that furls is arranged on the described two ends that furl axle, described curtain plate be connected to described furl on the axle and the application force being collected in winding manner by described torsion spring in described furling tube, and make the head of described curtain plate stretch out described curtain plate notch.This curtain plate furling mechanism adopts one and furls torsion spring as the income power of curtain plate, has characteristics simple in structure, easy to use.
As a kind of improved technical scheme of the present invention, described curtain plate also is provided with a radius stay, described radius stay is arranged on the head of described curtain plate, and length is greater than the width of described curtain plate, and described radius stay two ends fit in the described chute and with described chute and make sliding block joint.By increasing a radius stay as the location of curtain plate at the curtain plate head, has simple in structure, location failure-free advantage.
As a kind of optimal technical scheme of the present invention, described rotation positioning device comprises sliding pin seat, sliding pin, spring and a draw ring; Be provided with the sliding pin hole at described sliding pin seat, described sliding pin stretches out described sliding pin hole under described action of the spring, and described sliding pin rearward end is by described draw ring location; Be fixed on the pivot end of described swing arm at the pivot of described swing arm, described pivot is provided with dowel hole vertical and that radially connect; Described sliding pin and described dowel hole are adaptive.Cooperate with dowel hole in the described swing arm by the sliding pin on the rotation positioning device, make tables in use more firm, and convenient reliable during by draw ring pulling sliding pin conversion tables position.
As a kind of optimal technical scheme of the present invention, described curtain plate detent mechanism comprises a locating plate and a location torsion spring; Also be provided with a locating notch in described swing arm, described locating plate one end is provided with aduncate the first positioning groove, and the other end is articulated in the described locating notch; Described positioning groove position is corresponding with described chute.Be communicated with described chute by a locating notch is set at described swing arm, described radius stay is positioned by the positioning groove on the locating plate, easy to use, the location is reliable.
Technical scheme of the present invention breaks through the common method to set up of tables in the automobile, and the mentality of designing that adopts upset to combine with folding and unfolding, the use that tables on automotive seat is arranged taken into account simultaneously the front and rear row occupant and tables' accommodation method.This method technical scheme is skillfully constructed, and the tables that also solved front-row occupant simultaneously limit a difficult problem that is difficult to arrange owing to interior space.The present invention takes full advantage of finite space in the car, has greatly expanded the use function of car facilities.
Description of drawings
Fig. 1 is the mounting structure scheme drawing of the present invention on the backrest of automotive seat, it is articulated in the both sides of described backrest by two swing arms, and the folding and unfolding by curtain plate, realize that tables are arranged on the front and back of motor vehicle seat back, so as for front-row occupant or after arrange the occupant;
Fig. 2 is the structural representation of the present invention after removing a swing arm;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the structural representation of rotation positioning device among the present invention;
Fig. 5 is that curtain plate furls and locate the work scheme drawing among the present invention;
Fig. 6 is the structural representation of swing arm among the present invention;
Fig. 7 is the structural representation that furls detent mechanism among the present invention;
Fig. 8 is the position view that the present invention is arranged on the back of seat back;
Wherein, back of seat 1, seat cushion 2, swing arm 3, chute 301, locating notch 302, end cap 304, spring perch 305, curtain plate furling mechanism 4, furling tube 401, furl axle 402, support 403, furl torsion spring 404, curtain plate 5, radius stay 501, curtain plate body 502, furl detent mechanism 6, positioning cover plate 601, locating plate 602, positioning groove 603, leg 604, location torsion spring 605, alignment pin 606, cambered surface 607, rotation positioning device 7, sliding pin seat 701, sliding pin 702, draw ring 703, sliding pin hole 704, swing arm pivot 8, dowel hole 801.
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 8, a kind of Vehicular turnover type desk platform comprises two swing arms 3, rotation positioning device 7, curtain plate 5, curtain plate detent mechanism 6 and curtain plate furling mechanism 4.The both sides that row is articulated in motor vehicle seat back are held in one of described two swing arms 3 level with both hands, and carry out rotational positioning by the rotation positioning device 7 on the both sides that are arranged on described motor vehicle seat back 1, and sprocket bit is equipped with front level attitude, rear level attitude and reception position.Cross-over connection has described curtain plate furling mechanism 4 between described two swing arms, 3 other ends, and described curtain plate 5 is wound in described curtain plate body 502 furling mechanisms 4, and its head stretches out the curtain plate notch on described curtain plate furling mechanism 4 inboards.Referring to Fig. 3, be provided with a radius stay 501 at the head of described curtain plate body 502, be provided with chute 301 in the inboard of described two swing arms 3, described curtain plate 5 can be pulled out in the described curtain plate furling mechanism 4 and slide along described chute 301.Be provided with curtain plate detent mechanism 6 in described two swing arms 3, be used for described curtain plate 5 is positioned.
Referring to Fig. 4 and Fig. 6, described rotation positioning device 7 is a bolt-type detent mechanism, and it comprises a sliding pin seat 701, sliding pin 702, spring (not showing on the figure) and draw ring 703.Be provided with sliding pin hole 704 at described sliding pin seat 701,704 lower ends, described sliding pin hole be provided with an annular shoulder every; The upper end of described sliding pin 702 is provided with a shaft shoulder, described spring be arranged in the described sliding pin hole 704 and be arranged with described annular shoulder every and the shaft shoulder between, described sliding pin hole 704 is stretched out in described sliding pin 702 lower ends, and in the pin-and-hole of end, be plugged with described draw ring 703, make described sliding pin 702 can under described action of the spring, all not skid off described sliding pin hole 704.
Be fixed with a swing arm pivot 8 at described swing arm 3 pivot ends, swing arm pivot 8 is provided with dowel hole 801 vertical and that radially connect, and described sliding pin 702 and described dowel hole 801 are adaptive.Make it to insert or extract described dowel hole 801 by the sliding pin 702 on the draw ring 703 pulling rotation positioning devices 7, realize the location, position of two swing arms 3.
Referring to Fig. 6 and Fig. 3,3 one rod members of described swing arm are provided with upper plane, medial surface and the lateral surface of mutual approximate vertical; Be provided with the chute 301 of a T font at the medial surface of described swing arm 3, and opening is at the far-end of the relatively described swing arm pivot 8 of described swing arm 3, at this and be provided with end cap 304, described end cap 304 lateral surfaces flush with the lateral surface of described swing arm 3, and the medial surface of described end cap 304 flushes with the bottom surface of described chute 301.Be provided with 4 mounting holes and a spring perch 305 at described end cap 304; Described mounting hole is used for described curtain plate furling mechanism 4 is fixed on described swing arm 3.Be provided with a locating notch 302 on the upper plane of described swing arm 3, be communicated with described chute 301, described curtain plate detent mechanism is articulated in the described locating notch 302, realizes the location of described curtain plate 5 after expansion.
Referring to Fig. 6 and Fig. 7, described curtain plate detent mechanism 6 comprises a locating plate 602, positioning cover plate 601, leg 604, alignment pin 606 and a location torsion spring 605.Described locating plate 602 and leg 604 be connected to described positioning cover plate 601 below, the junction of described leg 604 makes described positioning cover plate 601 can make take described leg 604 as fulcrum lever and moves near the centre of described positioning cover plate 601.Described location torsion spring 605 is socketed in the axis hole that also is connected to together on the described alignment pin 606 on the described leg 604.The installation site of described location torsion spring 605 rotates described positioning cover plate 601 and locating plate 602, and described locating plate 602 is in the chute 301 of described swing arm 3.The head of described locating plate 602 is a cambered surface 607, and the rear portion is provided with a positioning groove 603.Referring to Fig. 5 and Fig. 7, radius stay 501 on the described curtain plate 5 promotes the torsion that cambered surface 607 makes described locating plate 602 overcome described location torsion spring 605 on the described locating plate 602 and upwards rotates, make described radius stay 501 slip over described locating plate 602, described locating plate 602 resets under the twisting force of described location torsion spring 605, make described radius stay 501 snap in the positioning groove 603 at described locating plate rear portion the location of finishing curtain plate 5.
Referring to Fig. 2, Fig. 3 and Fig. 5, described curtain plate furling mechanism 4 comprises a furling tube 401, furls axle 402, furls torsion spring 404 and support 403.The cross-sectional plane of described furling tube 401 is the C font, is provided with a longitudinally curtain plate notch; Described support 403 is fixed on described furling tube 401 both-side opening places, the described axle 402 that furls is articulated on the described support 403, the described torsion spring 404 that furls is arranged on the described two ends that furl axle 402, and the described application force that furls torsion spring 404 is wound on described curtain plate body 502 and describedly furls on the axle 402 and be accommodated in the described furling tube 401.Head at described curtain plate body 502 is provided with a radius stay 501, its length is greater than the width of described curtain plate body 502, described radius stay 501 stretches out described curtain plate notch, and the two ends of described radius stay 501 fit in the described chute 301 and with described chute 301 and make sliding block joint.
Referring to Fig. 1-Fig. 8, tables of the present invention are when virgin state, in the furling tube 401 of the described curtain plate furling mechanism 4 of described curtain plate body 502 incomes, described two swing arms 3 form a framed structure with described curtain plate furling mechanism 4, it is by the described sliding pin 702 of described draw ring 703 pullings, described sliding pin 702 and the dowel hole 801 on described swing arm 3 pivots 8 are thrown off, tables turn to motor vehicle seat back 1 rear portion by the swing arm pivot 8 in the described swing arm 3, make described curtain plate furling mechanism 4 downwards and snap in the lower space of automotive seat seat cushion 2.When rear row occupant need to use tables, by spurring described draw ring 703, and promote simultaneously described curtain plate furling mechanism 4 and upwards rotate, near level attitude the time, discharge described draw ring 703, described sliding pin 702 is inserted in the described dowel hole 801; After finishing after the arranging of level attitude, spur the radius stay 501 on the described curtain plate 5, make it to sliding to described motor vehicle seat back 1 direction along described chute 301, and make it to snap in the positioning groove 603 in the described curtain plate detent mechanism 6, thereby the tables that finish back occupant arrange.
Main innovation of the present invention is that it can also be used for the tables of front-row occupant.When need are used as the front-row occupant tables, when being in rear level attitude such as former tables, first-selection should be by the rear portion 608 of pressing described positioning cover plate 601, the application force that makes described locating plate 602 overcome location torsion spring 605 upwards rotates, the radius stay 501 of described curtain plate 5 is deviate from from described positioning groove 603, described curtain plate body 502 in the described furling tube of income, makes tables become a framework under the described effect that furls torsion spring 404.At this moment, spur again draw ring 703, described lock pin 702 is deviate from from described dowel hole 801, rotate again tables, make it to stride across motor vehicle seat back 1 top, forward the front of described motor vehicle seat back 1 to.After this control step is with to set up rear row occupant the same with tables, thereby the tables that finish front-row occupant set up.
Above-described embodiment is in order more clearly to understand the present invention, as a kind of restriction to right of the present invention, under the prerequisite that does not break away from aim of the present invention, various variations can not to be arranged.As, the curtain plate detent mechanism can just be arranged on a draw-in groove at described chute, and structure is simpler; Or described rotation positioning device can be arranged on elastic locating mechanism and lockable mechanism on swing arm 3 pivots, and can there be many variations in these mechanisms, and all these will be included within the scope of this claim the apparent modification of described those skilled in the art.