CN104149669B - Back seat for vehicle is rested the head on and has its vehicle - Google Patents

Abstract

The invention discloses the vehicle that a kind of back seat for vehicle is rested the head on and had it, back seat headrest includes: the first pillow and the second pillow, first pillow may move in the longitudinal direction, second pillow is located at the top of the first pillow, and second pillow rotatable between lock position and unlocked position, wherein first pillow move forward period, second pillow turn to unlocked position from lock position, first pillow be moved rearwards by period, second pillow turn to lock position from unlocked position.The back seat for vehicle according to the present invention is rested the head on, by arranging the first pillow and the second pillow, when accidents such as vehicle collide, first pillow and the second pillow can move forward jointly, and second pillow can from pivoted to vertical position, to overlay the surface of the first pillow, such that it is able to effectively suppress the head and neck of rear passenger to swing back, to ensure the cervical region safety of rear passenger, and the first pillow and the second pillow are absent from spacious dynamic abnormal sound problem in the process of motion.

Description

Back seat for vehicle is rested the head on and has its vehicle

Technical field

The present invention relates to vehicle arrangement field, especially relate to the vehicle that a kind of back seat for vehicle is rested the head on and had it.

Background technology

In correlation technique, the front-row seats of vehicle is standing safety headrest, but the safety of rear passenger is difficult to ensure that, and, the actuating mechanism of the safety headrest of front-row seats is often arranged on the backrest frames of front-row seats, can cause the spacious dynamic abnormal sound problem of safety headrest when actuating mechanism is moved.

Summary of the invention

It is contemplated that at least solve one of technical problem of existence in prior art.For this, the invention reside in proposition a kind of back seat for vehicle rest the head on, described back seat headrest can protect rear passenger safety and headrest protect passenger process in be absent from spacious dynamic abnormal sound problem.

The present invention also proposes a kind of vehicle with above-mentioned back seat headrest.

The back seat for vehicle of embodiment is rested the head on according to a first aspect of the present invention, including: the first pillow, described first pillow may move in the longitudinal direction；Rest the head on second, described second pillow is located at the top of described first pillow, and described second pillow is rotatable between lock position and unlocked position, wherein described first pillow move forward period, described second pillow turn to described unlocked position from described lock position, described first pillow be moved rearwards by period, described second pillow turn to described lock position from described unlocked position.

The back seat for vehicle according to embodiments of the present invention is rested the head on, by arranging the first pillow and the second pillow, when accidents such as vehicle collide, first pillow and the second pillow can move forward jointly, and second pillow can from pivoted to vertical position, to overlay the surface of the first pillow, such that it is able to effectively suppress the head and neck of rear passenger to swing back, to ensure the cervical region safety of rear passenger, and the first pillow and the second pillow are absent from spacious dynamic abnormal sound problem in the process of motion.

Specifically, described first pillow be may move in the longitudinal direction by moving structure, and wherein said moving structure includes: sleeve, and described sleeve extends along the longitudinal direction, and described sleeve is suitable to be fixed on the backrest of described back seat；With mobile bar, described mobile bar can be located in described sleeve movably forward and backward, and the front end of described mobile bar is fixing with described first pillow to drive described first pillow to may move in the longitudinal direction.

Alternatively, described mobile bar can be located in described sleeve movably forward and backward by spring.

Further, described moving structure farther includes: locking piece, and described locking piece is configured to the mobile bar described in locking when described second pillow is positioned at described lock position.

Specifically, the rear end of described mobile bar is formed with locking hole through in left-right direction, and described locking piece extends in left-right direction and may move in the lateral direction, and described locking piece coordinates with described locking hole and is locked in described sleeve with the rear end by described mobile bar.

Further, one end of described locking piece is provided with bracing wire, pulls locking piece described in described bracing wire to depart from described locking hole and coordinates.

Alternatively, described back seat headrest farther includes: the 3rd pillow, and described 3rd pillow is fixed with described sleeve, and described 3rd pillow is suitable to be fixed on the described backrest of described back seat.

Further, described second pillow by bar linkage structure between described lock position and described unlocked position rotatable, wherein said bar linkage structure includes: first connecting rod, one end of described first connecting rod is connected pivotly with the front end of described mobile bar, and described first connecting rod is fixing with described second pillow to drive described second pillow rotatable around described one end of described first connecting rod；Second connecting rod, one end of described second connecting rod is connected pivotly with sleeve；And third connecting rod, the two ends of described third connecting rod are connected pivotly with described first connecting rod and described second connecting rod respectively.

Specifically, the front end of described mobile bar is provided with fixed block, and described one end of described first connecting rod is pivotably coupled on described fixed block.

The vehicle of embodiment according to a second aspect of the present invention, rests the head on including the back seat for vehicle according to a first aspect of the present invention.

Vehicle according to embodiments of the present invention, rests the head on by arranging the back seat for vehicle of above-mentioned first aspect, thus improve the general safety performance of vehicle.

The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that the back seat for vehicle according to embodiments of the present invention is rested the head on, and wherein the second pillow is in lock position；

Fig. 2 is the profile of line A-A along Fig. 1；

Fig. 3 is the profile of line B-B along Fig. 1；

Fig. 4 is the rearview of the back seat headrest shown in Fig. 1；

Fig. 5 is the profile of line C-C along Fig. 4；

Fig. 6 is the axonometric chart of the moving structure shown in Fig. 1 and bar linkage structure；

Fig. 7 is another schematic diagram of the back seat headrest shown in Fig. 1, and wherein the second pillow is in the unlocked position；

Fig. 8 is the profile of line D-D along Fig. 7；

Fig. 9 is the profile of E-E line along Fig. 7；

Figure 10 is the rearview of the back seat headrest shown in Fig. 7；

Figure 11 is the profile of F-F line along Figure 10；

Figure 12 is the axonometric chart of the moving structure shown in Fig. 7 and bar linkage structure.

Accompanying drawing labelling:

100: back seat is rested the head on；

11: the first pillows；12: the second pillows；13: the three pillows；

2: moving structure；21: sleeve；

22: mobile bar；221: fixed block；222: locking hole；

23: spring；24: locking piece；

25: bracing wire；251: bracing wire sleeve；252: joint；253: control bracing wire；

3: bar linkage structure；311: first connecting rod；312: second connecting rod；313: third connecting rod；

321: the first pivotal axis；322: the second pivotal axis；

323: the three pivotal axis；324: the four pivotal axis.

Detailed description of the invention

Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.

Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.In order to simplify disclosure of the invention, hereinafter parts and setting to specific examples are described.Certainly, they are only merely illustrative, and are not intended to the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging.Additionally, the example of the various specific technique that the invention provides and material, but those of ordinary skill in the art are it can be appreciated that the use of the property of can be applicable to of other techniques and/or other materials.

The back seat for vehicle describing embodiment according to a first aspect of the present invention below with reference to Fig. 1-Figure 12 rests the head on 100.Wherein, can having back seat backrest (not shown go out) in vehicle (not shown go out), back seat headrest 100 can be generally positioned at the top of back seat backrest, in order to the head and neck of passenger leans on.

As it is shown in figure 1, the back seat for vehicle of embodiment rests the head on 100 according to a first aspect of the present invention, including: the first pillow 11 and the second pillow 12.

Specifically, with reference to Fig. 1 and Fig. 7, first pillow 11 can be arranged on the front side at back seat backrest top, first pillow 11 may move in the longitudinal direction, when being in normal driving or parked state when vehicle, first pillow 11 is vertically arranged and maintains resting state, the head and neck of rear passenger can lean on the first pillow 11 backward, when accidents such as vehicle collide, first pillow 11 is still vertically arranged but translates forward, to promote the head and neck of passenger to travel forward, preliminary suppression causes the head and neck layback problem of passenger due to collision.

Further, with reference to Fig. 1 and Fig. 7, second pillow 12 is located at the top of the first pillow 11, and second pillow 12 rotatable between lock position and unlocked position, wherein move forward period at the first pillow 11, the second pillow 12 turns to unlocked position from lock position, be moved rearwards by period at the first pillow 11, the second pillow 12 turns to lock position from unlocked position, and certain first pillow 11 can not be moved rearwards by, and namely the second pillow 12 is without locking again.Wherein, the second pillow 12 can be rested the head on 11 with first and be connected, and the second pillow 12 rests the head on 11 pivotably relative to first, and it is translatable that the first pillow 11 followed by the second pillow 12.

Specifically, with reference to Fig. 1, when being in normal driving or parked state when vehicle, second pillow 12 is in lockup state, now the second pillow 12 is horizontally disposed at the top of the first pillow 11, and second pillow 12 front end with first pillow 11 upper end antetheca align, when accidents such as vehicle collide, the locking device (locking piece 24 such as described below) resting the head on 12 for locking second is untied, second pillow 12 moves from lock position to unlocked position, now, the second pillow 12 starts to pivot to vertical position from horizontal level, and follows the first pillow 11 simultaneously and translate forward.

As shown in Figure 7, when the second pillow 12 is switched to unlocked position, the second pillow 12 can be vertically arranged, and the front end face of the front end face of the second pillow 12 and the first pillow 11 can be concordant, to promote the head and neck of passenger to travel forward further, suppress further owing to collision causes the layback problem of passenger's head and neck.Thus, by arranging the first pillow 11 and the second pillow 12, it is possible to effectively protect the head and neck safety of rear passenger.

The back seat headrest 100 for vehicle according to embodiments of the present invention, by arranging the first pillow 11 and the second pillow 12, when accidents such as vehicle collide, first pillow 11 and the second pillow 12 can move forward jointly, and second pillow 12 can from pivoted to vertical position, to overlay the surface of the first pillow 11, such that it is able to effectively suppress the head and neck of rear passenger to swing back, to ensure the cervical region safety of rear passenger, and the first pillow 11 and the second pillow 12 are absent from spacious dynamic abnormal sound problem in the process of motion.

In one embodiment of the invention, as shown in Figure 1 and Figure 7, the first pillow 11 be may move in the longitudinal direction by moving structure 2, and wherein moving structure 2 may include that sleeve 21 and mobile bar 22.Wherein, sleeve 21 can be directly anchored on the backrest of back seat, can also be indirectly fixed on the backrest of back seat, when sleeve 21 is indirectly fixed on the backrest of back seat, back seat headrest 100 may further include the 3rd pillow 13, 3rd pillow 13 can be fixed on the backrest of back seat, and sleeve 21 is fixed on the 3rd pillow 13, thus sleeve 21 can be fixed on the backrest of back seat indirectly, only indirectly it is fixed on the backrest of back seat for sleeve 21 below and illustrates, certainly, those skilled in the art are after having read the techniques below scheme, it is appreciated that the technical scheme that sleeve 21 is directly anchored on back seat backrest.It addition, sleeve 21 can also be fixed on the backrest of back seat by other means indirectly.

Specifically, as shown in Figure 1 and Figure 7, 3rd pillow 13 can be generally horizontally disposed in the top of back seat backrest, first pillow 11 is vertically arranged at the front side of the 3rd pillow 13, and first pillow 11 upper end with the 3rd pillow 13 upper surface substantially concordant, when second pillow 12 is positioned at lockup state, second pillow 12 flatly overlays the top of the 3rd pillow 13, and second pillow 12 front end with the 3rd pillow 13 front end substantially concordant, when the second pillow 12 moves to unlocked position, second pillow 12 is vertically arranged at the front side of the 3rd pillow 13, now, the lower end of the second pillow 12 and the upper end docking of the 3rd pillow 13, and the upper surface of butted line and the 3rd pillow 13 is substantially concordant.

Further, with reference to Fig. 1 and Fig. 7, sleeve 21 extends along the longitudinal direction, and it is horizontally fixed in the 3rd pillow 13, mobile bar 22 can be located in sleeve 21 movably forward and backward, and the front end of mobile bar 22 can pass freely through the front end face of the 3rd pillow 13, and the front end of mobile bar 22 is fixed with the first pillow 11, when mobile bar 22 moves forward and backward relative to the sleeve 21 being fixed in the 3rd pillow 13, mobile bar 22 can drive the first pillow 11 to move in the longitudinal direction.Thus, when a vehicle is in a collision, mobile bar 22 can move forward by relative sleeve 21, so that the first pillow 11 reach, thus protecting the head and neck safety of rear passenger.

Specifically, as shown in Figure 1 and Figure 7, the front end of mobile bar 22 can be provided with fixed block 221, fixed block 221 can be fixed on the front end of mobile bar 22 with being vertically arranged, and fixed block 221 can extend straight up from the front end of mobile bar 22, thus mobile bar 22 side projection can be constructed generally as L-shaped, at least some of (such as the bottom) of fixed block 221 can be fixed in the first pillow 11, thus mobile bar 22, fixed block 221 and the first pillow 11 can be an entirety of geo-stationary, when mobile bar 22 moves forward and backward, fixed block 221 and the first pillow 11 can move forward and backward in the lump.Thus, by arrange fixed block 221 can so that the first pillow 11 and mobile bar 22 fixing, and by adopting the fixed block 221 being vertically arranged to fix with the first pillow 11 so that first rest the head on 11 can constantly be vertically arranged, to complete anterior-posterior translation.

Further, with reference to Fig. 6 and Figure 12, mobile bar 22 can pass through spring 23 and can be located at movably forward and backward in sleeve 21.Specifically, the rear portion of sleeve 21 is provided with spring 23, the rear end of spring 23 is only against on the rear end diapire of sleeve 21, the front end of spring 23 is only against the rear end of mobile bar 22, when the second pillow 12 is positioned at lock position (as shown in Figure 6), mobile bar 22 can all be accommodated in sleeve 21, now spring 23 is in compressive state, with stored energy, after the second pillow 12 is released, spring 23 resiles, thus promoting forward mobile bar 22, the at least anterior of mobile bar 22 is made to stretch out (as shown in figure 12) from the front end of sleeve 21, thus mobile bar 22 realizes reach.

Here, it should be noted that, with reference to Fig. 6, the former length of spring 23 is less than the length of sleeve 21, the former length of such as spring 23 can be substantially equivalent to the 3/4 of sleeve 21 length, thus after spring 23 resiles, the rear end of mobile bar 22 can rest in sleeve 21, so that the first pillow 11 can continue to be vertically situated at the front side of the 3rd pillow 13, it is to avoid the problem that comes off of the first pillow 11.

Further, moving structure 2 farther includes: locking piece 24, and locking piece 24 is configured to the locking when the second pillow 12 is positioned at lock position and moves bar 22, and when locking piece 24 discharges the second pillow 12, the second pillow 12 can move from lock position to unlocked position.Wherein, with reference to Fig. 6, the middle part of sleeve 21 is formed with the perforation running through sleeve 21 barrel in left-right direction, the rear end of mobile bar 22 is formed with locking hole 222 through in left-right direction, locking piece 24 extends in left-right direction and may move in the lateral direction, when locking piece 24 is through when boring a hole and coordinate with locking hole 222, the rear end of mobile bar 22 is locked in sleeve 21 by locking piece 24, when locking piece 24 leaves locking hole 222, movement bar 22 is discharged by locking piece 24, now under the thrust of spring 23, mobile bar 22 can front shifting movement.

Alternatively, one end of locking piece 24 is provided with bracing wire 25, pulls bracing wire 25 locking piece 24 to depart from locking hole 222 and coordinates.Such as in the example of fig. 6, locking piece 24 is it is so structured that the straight pin that extends in left-right direction, bracing wire 25 is fixed on the one end on locking piece 24 length direction, when dragging bracing wire 25 to a lateral movement of the contiguous bracing wire 25 of locking piece 24, locking piece 24 can be deviate from locking hole 222, now move bar 22 to be released, to start reach.Wherein, bracing wire 25 can pass and coordinate in bracing wire sleeve 251.

nullSuch as at Fig. 2、Fig. 5、In the example of Fig. 8 and Figure 11，It is provided with two sleeves being symmetrically arranged 21 in 3rd pillow 13，Two sleeves 21 are parallel to each other and extend along the longitudinal direction，And in two sleeves 21, it is respectively equipped with a spring 23 and a mobile bar 22，Mobile bar 22 can be located in sleeve 21 movably forward and backward by spring 23，Two mobile bars 22 are parallel to each other and symmetrical，Further，With reference to Fig. 6 and Figure 12，The front end of two mobile bars 22 is fixed with fixed block 221 simultaneously，For fixing the first pillow 11，Each mobile bar 22 is respectively formed with a locking hole run through in left-right direction 222，And on two mobile bars 22 locking hole 222 to offer position identical，Each sleeve 21 is respectively formed with a perforation run through in left-right direction，And on two sleeves 21 perforation to offer position identical.

Further, with reference to Fig. 6 and Figure 12, perforation place of each sleeve 21 is equipped with a locking piece 24 respectively, the left end of the left side locking piece 24 being positioned on left hand sleeves 21 is provided with left side bracing wire 25, when left side bracing wire 25 pulls the locking piece 24 in left side to the left, the mobile bar 22 in left side discharges in the sleeve 21 in left side, can move forward, the right-hand member of the right side locking piece 24 being positioned in right hand sleeves 21 is provided with right side bracing wire 25, when right side bracing wire 25 pulls to the right the locking piece 24 on right side, the mobile bar 22 on right side discharges in the sleeve 21 on right side, it is possible to move forward.

Specifically, with reference to Fig. 6 and Figure 12, the bracing wire 25 in left side can be connected with a joint 252 with the bracing wire 25 on right side simultaneously, the other end of joint 252 and trigger mechanism, such as control bracing wire 253 to be connected, wherein control bracing wire 253 can be embedded in the backrest of back seat, when a vehicle is in a collision, the passenger of heel row is likely to impact at full tilt backward the backrest of back seat, the control bracing wire 253 being now embedded in the backrest of back seat becomes curved, so that moving after joint 252, thus bracing wire 25 and right side bracing wire 25 are moved on the left of dragging, make the mobile bar 22 in the locking piece 24 release left side in left side, the locking piece 24 on right side discharges the mobile bar 22 on right side simultaneously.Thus, the first pillow 11 and the second pillow 12 move from lock position to unlocked position respectively, to protect the safety of passenger.Wherein, trigger mechanism can also be arranged according to actual requirement, to meet actual requirement better.

Specifically, with reference to Fig. 1, Fig. 6, shown in Fig. 7 and Figure 12, it is rotatable between lock position and unlocked position that second pillow 12 passes through bar linkage structure 3, wherein bar linkage structure 3 includes: first connecting rod 311, second connecting rod 312 and third connecting rod 313, one end of first connecting rod 311 is connected pivotly with the front end of mobile bar 22, such as one end of first connecting rod 311 can be pivotably coupled on fixed block 221, one end of second connecting rod 312 is connected pivotly with sleeve 21, the two ends of third connecting rod 313 are connected pivotly with first connecting rod 311 and second connecting rod 312 respectively, first connecting rod 311 and the second pillow 12 are fixing to drive the second pillow 12 rotatable around one end of first connecting rod 311.Wherein, the operating principle of multi-connecting-rod mechanism is well known to those skilled in the art, no longer describes in detail here.

With reference to Fig. 7 and Figure 12, when the second pillow 12 is positioned at unlocked position, first connecting rod 311 is vertically situated at the top of fixed block 221, second connecting rod 312 and third connecting rod 313 are substantially linked to be an oblique line tilting upward extension from back to front, now, the upper end of the lower end of first connecting rod 311 and fixed block 221 is pivotably connected by the first pivotal axis 321, the lower end of the lower end of second connecting rod 312 and two sleeves 21 is pivotably connected by the second pivotal axis 322, the upper end of the upper end of third connecting rod 313 and first connecting rod 311 is pivotably connected by the 3rd pivotal axis 323, the upper end of the lower end of third connecting rod 313 and second connecting rod 312 is pivotably connected by the 4th pivotal axis 324.

Thus; as shown in Figure 1 and Figure 7; rest the head on 12 by second to be fixed together with first connecting rod 311; and the bearing of trend of the second pillow 12 is overlapped with the bearing of trend of first connecting rod 311, thus when first connecting rod 311 is vertically arranged, first connecting rod 311 can drive the second pillow 12 to be vertically arranged; so that the second pillow 12 can protect the safety of rear passenger; when first connecting rod 311 general horizontal is arranged, the second pillow 12 can be arranged by general horizontal, and now the second pillow 12 may be located at lock position.

Specifically, first pillow the 11, second pillow 12 and the 3rd pillow 13 can be foam element, and by foam process molding, specifically, in the process of processing, sleeve 21 and locking piece 24 can be embedded in the mould of the 3rd pillow 13, and it is foaming-formed with the 3rd pillow 13, the fixed block 221 of mobile bar 22 is embedded in the mould of the first pillow 11 simultaneously, and it is foaming-formed with the first pillow 11, first connecting rod 311 is embedded in the mould of the second pillow 12 simultaneously, and foaming-formed with the second pillow 12.Here, it is necessary to explanation, first pillow the 11, second pillow 12 and the 3rd pillow 13 need reserved assembly space in the process of molding, in order to further assemble.Certainly, the invention is not restricted to this, back seat headrest 100 can also pass-through mode molding and assembling.

Thus, by moving structure 2 and bar linkage structure 3 being respectively provided on back seat headrest 100, thus improve the Reliability of Microprocessor of back seat headrest 100, such that it is able to improve security performance further, and reduce the spacious dynamic abnormal sound problem of back seat headrest 100.

Referring to Fig. 1-Figure 12 be briefly described according to embodiments of the present invention back seat headrest 100 work process.

When being in normal driving or parked state when vehicle, locking piece 24 coordinates in locking hole 222, mobile bar 22 is accommodated in completely in sleeve 21 and is limited at lock position, spring 23 is in compressive state, now the first pillow 11 is vertically situated at the 3rd pillow 13 fronts, and the second pillow 12 is horizontally disposed at the top of the 3rd pillow 13.

When accidents such as vehicle collide, shake-up control bracing wire 253 makes bracing wire 25 drag locking piece 24 and leaves locking hole 222, mobile bar 22 is released, spring 23 resiles and promotes forward mobile bar 22, thus mobile bar 22 moves forward to promote the first pillow 11 to translate forward, fixed block 221 drives first connecting rod 311 to travel forward simultaneously, first connecting rod 311 drives third connecting rod 313 and second connecting rod 312 to pivot, but when mobile bar 22 moves forward to extreme position, first connecting rod 311 can be vertically arranged at the surface of fixed block 221, thus second pillow 12 fixing with first connecting rod 311 can be vertically arranged at the surface of first pillow 11 fixing with fixed block 221, thus protecting the head and neck safety of user.

nullThus，Under the premise not sacrificing comfortableness，By arranging by fixed block 221 in back seat headrest 100、First connecting rod 311、The quadric chain of second connecting rod 312 and third connecting rod 313 composition，And adopt spring 23 accumulation of energy as power，Adopt bracing wire 25 to control locking piece 24 to be unlocked，And the trigger mechanism (such as controlling bracing wire 253) of bracing wire 25 is arranged in the backrest of back seat，I.e. just lower back to passenger，So，When colliding，Trigger mechanism (such as controlling bracing wire 253) in backrest can be applied active force backward by rear passenger，Thus realizing the triggering of back seat headrest 100，And then promote the second pillow 12 flip up and travel forward，Quickly to suppress the layback campaign of rear passenger head，Realize the protection to rear passenger，Especially the effective protection to rear passenger cervical region，And avoid the spacious dynamic abnormal sound problem of back seat headrest 100.

The vehicle of embodiment according to a second aspect of the present invention, rests the head on 100 including the back seat for vehicle according to the above-mentioned first aspect embodiment of the present invention.Should be understood that, other of vehicle according to embodiments of the present invention constitutes such as electromotor (not shown go out), variator (not shown go out), differential mechanism (not shown go out), brakes (not shown go out) etc. all for prior art and be well known for ordinary skill in the art, and is therefore no longer described in detail one by one here.

Vehicle according to embodiments of the present invention, rests the head on 100 by arranging the back seat for vehicle of above-mentioned first aspect embodiment, thus improve the general safety performance of vehicle.

In describing the invention, it will be appreciated that, term " length ", " width ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.

Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner.Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.

Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. the back seat for vehicle is rested the head on, including: the first pillow, described first pillow may move in the longitudinal direction；It is characterized in that, described back seat headrest also includes:

Second pillow, described second pillow is located at the top of described first pillow, and described second pillow is rotatable between lock position and unlocked position, wherein described first pillow move forward period, described second pillow turn to described unlocked position from described lock position, described first pillow be moved rearwards by period, described second pillow turn to described lock position from described unlocked position.

2. the back seat for vehicle according to claim 1 is rested the head on, it is characterised in that described first pillow be may move in the longitudinal direction by moving structure, and wherein said moving structure includes:

Sleeve, described sleeve extends along the longitudinal direction, and described sleeve is suitable to be fixed on the backrest of described back seat；With

Mobile bar, described mobile bar can be located in described sleeve movably forward and backward, and the front end of described mobile bar is fixing with described first pillow to drive described first pillow to may move in the longitudinal direction.

3. the back seat for vehicle according to claim 2 is rested the head on, it is characterised in that described mobile bar can be located in described sleeve movably forward and backward by spring.

4. the back seat for vehicle according to claim 2 is rested the head on, it is characterised in that described moving structure farther includes:

Locking piece, described locking piece is configured to the mobile bar described in locking when described second pillow is positioned at described lock position.

5. the back seat for vehicle according to claim 4 is rested the head on, it is characterised in that the rear end of described mobile bar is formed with locking hole through in left-right direction,

Described locking piece extends in left-right direction and may move in the lateral direction, and described locking piece coordinates with described locking hole and is locked in described sleeve with the rear end by described mobile bar.

6. the back seat for vehicle according to claim 5 is rested the head on, it is characterised in that one end of described locking piece is provided with bracing wire, pulls locking piece described in described bracing wire to depart from described locking hole and coordinates.

7. the back seat for vehicle according to claim 2 is rested the head on, it is characterised in that farther include:

3rd pillow, described 3rd pillow is fixed with described sleeve, and described 3rd pillow is suitable to be fixed on the described backrest of described back seat.

8. the back seat for vehicle according to any one of claim 2-7 is rested the head on, it is characterised in that described second pillow by bar linkage structure between described lock position and described unlocked position rotatable, wherein said bar linkage structure includes:

First connecting rod, one end of described first connecting rod is connected pivotly with the front end of described mobile bar, and described first connecting rod is fixing with described second pillow to drive described second pillow rotatable around described one end of described first connecting rod；

Second connecting rod, one end of described second connecting rod is connected pivotly with sleeve；And

Third connecting rod, the two ends of described third connecting rod are connected pivotly with described first connecting rod and described second connecting rod respectively.

9. the back seat for vehicle according to claim 8 is rested the head on, it is characterised in that the front end of described mobile bar is provided with fixed block, and described one end of described first connecting rod is pivotably coupled on described fixed block.

10. a vehicle, it is characterised in that include the back seat for vehicle according to any one of claim 1-9 and rest the head on.