CN106660470A

CN106660470A - Vehicle seat attachment structure

Info

Publication number: CN106660470A
Application number: CN201580035715.3A
Authority: CN
Inventors: 芳田元; 林和宽
Original assignee: TS Tech Co Ltd
Current assignee: TS Tech Co Ltd
Priority date: 2014-08-06
Filing date: 2015-08-06
Publication date: 2017-05-10
Anticipated expiration: 2035-08-06
Also published as: CN106660470B; WO2016021676A1

Abstract

A vehicle seat attachment structure for attaching a seat back (S20) in a vertically movable manner, and equipped with: a seatback frame (F2) having an upper frame (10) constituting the frame in the upper section of the seatback (S20), and a lower frame (20) constituting the frame in the lower section of the seatback (S20), and capable of rotating forward and rearward relative to the upper frame (10) with an axis (A2) extending in the left-right direction as the rotational center thereof; a back panel (60) positioned to the rear of the seatback (S20); and a movement mechanism (M) capable of vertically moving the seatback frame (F2) relative to the back panel (60). Furthermore, the back panel (60) has a concavity (63) in which the movement mechanism (M) is inserted and disposed.

Description

The mounting structure of vehicle seat

Technical field

The present invention relates to a kind of mounting structure of vehicle seat, in the mounting structure, in mode moving up and down To install backrest.

Background technology

As the vehicle seat with seat cushion and backrest, in patent document 1, after disclosing a kind of vehicle use Seat, the vehicle is configured to back seat：Backrest is divided into up and down two parts, when toppling over relative to seat cushion, is being divided Portion is cut in middle warpage recessed forwards.In the art, support, backrest are fixed with the front surface of vehicle body backboard Framework the support is supported in the way of it can slide up and down, accordingly, backrest relative to vehicle body can move up and down Mode be mounted.

In addition, in the vehicles such as electric automobile and hybrid vehicle, it is known that in order that the battery cooling carried, And there is the passage that cold wind is supplied to battery.There is such a vehicle seat disclosed in patent document 2：It has the seat of honour Chair back and side backrest, the side backrest is arranged on seat of honour chair back side, for collecting the logical of the air in compartment Road is provided in the backrest of side.

In addition, as vehicle seat, having such a vehicle seat used disclosed in patent document 3, lean in seat In the back seat freely rotated before and after carrying on the back with lower side as fulcrum, backrest or so is split, and the backrest split Independent rotation is able to, in the armrest that the splicing part for being arranged at partitioning portion is provided with rotating in front and back.

Prior art literature

Patent document

Patent document 1:Japanese invention Patent Publication No is flat No. 10-86720

Patent document 2:International Publication No. 2011/016284

Patent document 3:Japanese Utility Model Publication opens in fact clear No. 58-4428

The content of the invention

In addition, in the vehicle back seat disclosed in patent document 1, support is configured between backrest and backboard, Therefore, there is the problem that dead band is produced between backrest and backboard.Further, since needing to use between backrest and backboard In the space of configuration support, therefore, correspondingly, make backrest close forward, therefore, the space of the front side of backrest (is handed over The space of the seat people in logical instrument) may narrow.

In addition, in the vehicles of compact as kart etc., seat is also compact structure, therefore, it is difficult To arrange passage in seat.

In addition, in the structure that moves up and down in action of tumbling etc. of the backrest with rotatable armrest, if The receptacle portion of armrest is provided with the adjacent component being adjacent to backrest, then when backrest is being received equipped with armrest When moving up and down under state, there is the situation that armrest interferes adjacent component.

In addition, in the vehicle seat that backrest can be moved up and down, will preferably enable backrest relative The travel mechanism moved up and down in backboard is simply assembled in backboard.In addition, the traffic work that can be moved up and down in backrest In tool seat, preferred backrest can be moved up and down well.

Therefore, it is an object of the invention to provide a kind of mounting structure of vehicle seat, the mounting structure can press down System produces dead band between backrest and backboard, and is able to ensure that the space of the front side of backrest.

In addition, it is an object of the present invention to improving workability when backrest to be installed on backboard.

In addition, it is an object of the present invention to stably supporting backrest.

In addition, it is an object of the present invention to improving the assembling rigidity of travel mechanism.

In addition, it is an object of the present invention to angle of the upper frame relative to backboard can be adjusted.

In addition, it is an object of the present invention to suppress maximize, and vehicle seat inside arrange passage.

In addition, it is an object of the present invention to suppressing to passage imposed load.

In addition, it is an object of the present invention in adjacent component has the structure of armrest receptacle portion, when suppressing backrest to move Adjacent component is interferenceed with armrest.

In addition, it is an object of the present invention to being simply assembled backboard and travel mechanism.

In addition, it is an object of the present invention to making backrest move up and down well.

In addition, it is an object of the present invention to simplifying the structure of backrest frame.

For realizing that the present invention of above-mentioned purpose is a kind of mounting structure of vehicle seat, it is used to installing seat and leans on The back of the body, enables the backrest to move up and down, it is characterised in that to have：Backrest frame, it has upper frame and bottom Framework, the upper frame constitutes the framework of the upper portion of the backrest, and the lower frame constitutes the seat and leans on The framework of the lower portion of the back of the body, and can in front and back be turned centered on the axle for extending in left-right direction relative to the upper frame It is dynamic；Backboard, it is configured in the rear of the backrest；And travel mechanism, its enable the backrest frame relative to The backboard is moved up and down, and the backboard has recess, and the travel mechanism is recessed to be configured at this into the state in the recess Portion.

According to such structure, backrest is made near backboard, can be so that the close state of backrest and backboard be come Configuration.Hereby it is possible to suppress to form dead band between backrest and backboard, and guarantee the front space of backrest.

In the mounting structure of the vehicle seat, it is configured to：The travel mechanism has：Frame side Part, it is connected with the backrest frame；With plate sidepiece part, it is fixed on the backboard, engages with the frame side part And guide moving up and down for the frame side part, the recess to be arranged to：The frame side part is enable in the recess The plate sidepiece part is inside sticked in from below.

Accordingly, frame side part can be made to initially enter in recess, with plate sidepiece part engages assembling from below afterwards, because This, it is possible to increase the workability being installed on backrest during backboard.

In the mounting structure of the vehicle seat, it is configured to：The plate sidepiece part has holding section, the card Conjunction portion engages with the frame side part, and the backboard has engaging guide portion, leans on when the seat is installed on the backboard Unlucky, the engaging guide portion guides the frame side part to the holding section.

Accordingly, it is easy to engage frame side part with the holding section of plate sidepiece part, improve seat therefore, it is possible to further Backrest is installed on workability during backboard.

In the mounting structure of the vehicle seat, it is configured to：The backboard has mark, when in the back of the body When the backrest being installed on plate, the upper end of the backrest and the label alignment are made, thus, by the frame side Part and the plate sidepiece part are aligned in the position that can be engaged.

Accordingly, by by the upper end of backrest and label alignment, it is easy to which frame side part is engaged with plate sidepiece part, because This, can further improve workability when backrest to be installed on backboard.

In the mounting structure of the vehicle seat, it is configured to：The recess is arranged to：When in the back of the body When the backrest being installed on plate, the upper end of the backrest is set to align with the upper edge of the recess, thus, will be described Frame side part and the plate sidepiece part are aligned in the position that can be engaged.

Accordingly, by the way that the upper end of backrest is alignd with the upper edge of recess, it is easy to by frame side part and plate side Part engages, therefore, it is possible to the workability that backrest is installed on backboard for further raising.

In the mounting structure of the vehicle seat, it is configured to：The travel mechanism has：Frame side Part, it is connected with the backrest frame；Plate sidepiece part, it is connected with the backboard, and guides the frame side part Move up and down, the frame side part is fixed on the bottom of the upper frame.

Accordingly, near due to the central authorities of the backboard by travel mechanism's configuration in the vertical direction, therefore, it is possible to pass through movement Mechanism is by the central authorities of backboard nearby bearing the load from backrest.Hereby it is possible to stably support backrest.

In the mounting structure of the vehicle seat, it is configured to：With supporting member, its described top of supporting A side in framework and the lower frame enables to be rotated centered on the axle, and the travel mechanism has：Framework side Part, it connects with the opposing party in the upper frame and the lower frame；Plate sidepiece part, it is connected with the backboard, Moving up and down for the frame side part, the frame side part is guided to engage with the supporting member.

Hereby it is possible to the supporting member and frame side part of high rigidity is integrally formed, therefore, it is possible to improve frame side part The assembling rigidity of (travel mechanism), wherein, the supporting member of high rigidity is pivotally supporting upper frame and bottom A side in framework.

In the mounting structure of the vehicle seat, it is configured to：The travel mechanism has：Frame side Part, it is connected with the backrest frame；With plate sidepiece part, it is connected with the backboard, and guides the frame side part Move up and down, the upper frame has the vertical frame section that extends up and down, and the frame side part has the quilt for extending up and down Guide portion, guides the directed section to move up and down by the plate sidepiece part, and the directed section is always observed from right and left, By more upwards further away from the vertical frame section in the way of incline relative to the vertical frame section.

Accordingly, although have directed section relative to the big situation of the rearward prominent quantitative change of vertical frame section, but by making shifting Motivation structure to configure into the state of the recess of backboard, in such a configuration, can suppress backrest and backboard it Between form dead band, it is ensured that the front space of backrest.

In the mounting structure of the vehicle seat, it is configured to：The travel mechanism has：Frame side Part, it is connected with the upper frame；With plate sidepiece part, it is connected with the backboard, guides the upper and lower of the frame side part Mobile, the frame side part has the directed section for extending up and down, guides the directed section to carry out by the plate sidepiece part Lower movement, the directed section is observed from left and right directions, is bent in the mode that front side is recessed.

Hereby it is possible to when adjusting upper frame and moving up and down, angle of the upper frame relative to backboard.

In the mounting structure of the vehicle seat, it is configured to：The backrest is configured in, and at least exists The position being connected with the backboard during by leaning on load.

Hereby it is possible to further suppress to form dead band between backrest and backboard, further, it is possible to guarantee backrest Front space.In addition, backboard can bear the load from backrest with bigger area, therefore, it is possible to stably Supporting backrest.

In the mounting structure of the vehicle seat, it is configured to：The vehicle seat has：Seat Portion, its built-in seat frame, and it is opposite with seated person；Sidepiece, it is adjacent in the side of the seat portion；And passage, The opening portion of one side is configured at the sidepiece, and the seat frame has main frame and an extension, and the extension is from described Main frame to the lateral side extends, and the passage is configured to：Observe from the 3rd direction, it is Chong Die with the extension, its In, the 3rd direction is opposite perpendicular to the 1st direction and seated person of the seat portion and sidepiece arrangement and the seat portion The both sides in the 2nd direction are vertical.

Accordingly, from the 3rd direction observing, passage is configured to Chong Die with extension, accordingly, suppresses vehicle seat Maximize, and passage can be arranged in vehicle seat.

In the mounting structure of the vehicle seat, it is configured to：The vehicle seat have be installed on The load bearing part of the extension, at least a portion of the load bearing part is configured in compared with the passage more Near seated person side.

Hereby it is possible to the load from seated person is born by part by load, therefore, it is possible to suppress that passage is applied to carry Lotus.

In the mounting structure of the vehicle seat, it is configured to：The vehicle seat has：1st Chair, it has the 1st seat cushion and the 1st backrest；1st adjacent component, it is adjacent to by the 1st backrest；With the 1st Backrest travel mechanism, it enables the 1st backrest in initial position and the lower section positioned at the lower section of initial position Move between position, the 1st seat have the 1st armrest, the 1st armrest be arranged on the 1st backrest, be configured with The side of the 1st adjacent component, and can be rotated centered on the axle for extending in left-right direction, the 1st adjacent component tool There is the 1st armrest receptacle portion, the 1st armrest receptacle portion is used to receive the 1st armrest when dress is not used, and the 1st armrest receives dress Portion has the 1st downside forward surface, and the 1st downside forward surface is opposite with the lower end of the 1st armrest for being received dress, when the described 1st When backrest is in initial position, space is provided between the 1st armrest and the 1st downside forward surface, the space For allowing the 1st armrest as the 1st backrest is from the initial position movement that downwards position is moved and carried out.

Accordingly, by being provided with space between the 1st armrest and the 1st downside forward surface of the 1st armrest receptacle portion, can press down The 1st armrest is interferenceed with the 1st adjacent component when making the position movement downwards of the 1st backrest.

In the mounting structure of the vehicle seat, it is configured to：The vehicle seat has：2nd Chair, it has the 2nd seat cushion and the 2nd backrest, and the 2nd backrest is the 1st adjacent component and described 1st The contrary side of chair, is adjacent to the 1st adjacent component；With the 2nd backrest travel mechanism, it can make the described 2nd Backrest is moved in initial position and between the lower position of the lower section of initial position, and the 2nd seat has the 2nd elbow Lean on, the 2nd armrest be arranged at the 2nd backrest, be configured with the side of the 1st adjacent component, and can be with edge Rotate centered on the axle that left and right directions extends, the 1st adjacent component has the 2nd armrest receptacle portion, the 2nd armrest receptacle portion is used In the 2nd armrest when dress is not used is received, the 2nd armrest receptacle portion has the 2nd downside forward surface, and the 2nd downside is opposite Face is opposite with the lower end of the 2nd armrest for being received dress, when the 2nd backrest is in initial position, in the 2nd elbow By being provided with space and the 2nd downside forward surface between, the space is used to allow the 2nd armrest with the 2nd seat Backrest is from the initial position movement that downwards position is moved and carried out.

Accordingly, it is provided with the structure of the backrest for moving up and down in the both sides of the 1st adjacent component, can suppresses The 1st armrest is interferenceed with the 1st adjacent component during the position movement downwards of the 1st backrest, and can suppress the 2nd backrest The 2nd armrest is interferenceed with the 1st adjacent component when downwards position is moved.

In the mounting structure of the vehicle seat, it is configured to：In the backboard and the travel mechanism One side has hook portion, and the opposing party in the backboard and the travel mechanism has the hook portion holding section for hook portion engaging.

Accordingly, by the hook portion of the side being arranged in backboard and travel mechanism and the hook portion holding section card for being arranged at the opposing party Close, hereby it is possible to be simply assembled backboard and travel mechanism.

In the mounting structure of the vehicle seat, it is configured to：The travel mechanism has：Tabular Frame, it is fixed on the backboard by the engaging of the hook portion and the hook portion holding section；And reinforcing plate, it is fixed on described Support.

Hereby it is possible to suppress the plate-shaped carrier bending for being fixed on backboard by reinforcing plate.Accordingly, the deformation of travel mechanism It is suppressed, therefore, it is possible to make backrest move up and down well.

In the mounting structure of the vehicle seat, it is configured to：The backrest frame has connection Frame, the connecting bracket connects the upper frame and the lower frame, and the upper frame has the top body side frame of left and right, Interval configuration between the top body side frame of the left and right or so, the lower frame has the bottom body side frame of left and right, the left and right Bottom body side frame between or so interval configuration, the connecting bracket have tabular main part and left and right support extend Portion, the frame extensions of the left and right extend forwards from the left and right two ends of the main part, the bottom of the top body side frame The connecting bracket, the bottom of the top body side frame and institute are fixed on the side in the upper end of the bottom body side frame State the opposing party in the upper end of bottom body side frame and be supported on the frame extensions, and the bottom of the top body side frame Can be rotated centered on the axle for extending in left-right direction with the opposing party in the upper end of the bottom body side frame.

Accordingly, with so that what the bottom of top body side frame and the upper end of bottom body side frame can independently rotate to the left and right Mode compares come the bottom for connecting top body side frame with the structure of the upper end of bottom body side frame, and backrest frame is difficult to Deformation, therefore, it is possible to make backrest carry out warpage well in centre.Hereby it is possible to make backrest move down on well It is dynamic.

In the mounting structure of the vehicle seat, it is configured to：The top body side frame is by upper and lower straight line The pipe of extension is constituted.

Hereby it is possible to simplify the structure of backrest frame.

In the mounting structure of the vehicle seat, it is configured to：The hook portion or so interval and arrange Have multiple.

Hereby it is possible to travel mechanism is installed on by backboard with relatively steady state, therefore, it is possible to make backrest better Move up and down well.

In the mounting structure of the vehicle seat, it is configured to：Hook portion interval apart from top to bottom and arrange Have multiple.

Hereby it is possible to travel mechanism is installed on by backboard with stable state, therefore, it is possible to make backrest better Move up and down.

Description of the drawings

Fig. 1 is the vehicle seat used stereogram for being denoted as the vehicle seat involved by the 1st embodiment.

Fig. 2 is the cushion frame and backrest frame and the solid of travel mechanism of the left-side seat for being built in vehicle seat used Figure.

Fig. 3 (a) is the stereogram of exploded representation backrest frame and travel mechanism, and Fig. 3 (b) is enlarged representation supporting member Stereogram.

Tu4Shi enlarged representations travel mechanism and the stereogram of engaging guide portion.

Fig. 5 is disposed on the stereogram of the backboard at vehicle seat used rear.

Fig. 6 is vehicle seat used side view.

Fig. 7 (a), Fig. 7 (b) are to illustrate the figure that backrest is installed to backboard.

Fig. 8 (a), Fig. 8 (b) are the figures of (the angular adjustment, reclining) action of tumbling for illustrating vehicle seat used.

Fig. 9 is the vehicle seat used stereogram as the vehicle seat involved by the 2nd embodiment.

Figure 10 is the stereogram of the framework for being built in vehicle seat used.

Figure 11 (a) is the stereogram of exploded representation main frame, and Figure 11 (b) is the stereogram of the end of enlarged representation supporting member.

Figure 12 is the stereogram of the extension of enlarged representation backrest frame.

Figure 13 is the front view of backrest frame and passage.

Figure 14 is the front view of the backrest frame and passage that load bearing part is provided with extension.

Figure 15 is the top view of enlarged representation extension and passage.

Figure 16 (a), Figure 16 (b) are that explanation is tumbled the figure of action.

Figure 17 is the front view of the backrest frame after action and passage of tumbling.

Figure 18 is the vehicle seat used stereogram as the vehicle seat involved by the 3rd embodiment.

Figure 19 is the stereogram of the state for making the backrest of left-side seat and right-side seat rearward topple over relative to seat cushion.

Figure 20 is cushion frame and backrest frame and the stereogram of travel mechanism.

Figure 21 (a) is the stereogram of exploded representation backrest frame and travel mechanism, and Figure 21 (b) is enlarged representation supporting member Stereogram.

Figure 22 is the sectional view of the structure for representing the receptacle portion for receiving dress armrest (armrest).

Figure 23 is the top view of the structure for representing left side.

Figure 24 (a), Figure 24 (b) are that explanation is tumbled the figure of action.

Figure 25 (a), Figure 25 (b) are the armrests and receptacle portion when representing the backrest position movement downwards for being provided with armrest The figure of position relationship.

Figure 26 is the vehicle seat used stereogram as the vehicle seat involved by the 4th embodiment.

Figure 27 is the sectional view of the structure for representing the receptacle portion involved by the 4th embodiment.

Figure 28 (a), Figure 28 (b) are the armrests and receptacle portion when representing the backrest position movement downwards for being provided with receptacle portion Position relationship figure.

Figure 29 is the vehicle seat used stereogram as the vehicle seat involved by the 5th embodiment.

Figure 30 is in the built-in seat of the vehicle seat used left-side seat as the vehicle seat involved by the 6th embodiment The stereogram of pad framework and backrest frame.

Figure 31 is the stereogram of the attachment structure for representing the upper frame and lower frame that constitute backrest frame.

Figure 32 is the stereogram of travel mechanism.

Figure 33 is the stereogram of the mounting structure for representing the travel mechanism and backboard for being arranged at left-side seat.

Figure 34 is comparable to the left-side seat of the Section X-X of Figure 33 and the sectional view of backboard.

Figure 35 (a), Figure 35 (b) are the figures of the action of tumbling for illustrating vehicle seat used.

Figure 36 (a), Figure 36 (b) are the figures of the installation of the structure and backrest that represent the backboard involved by the 1st variation.

Figure 37 is the vehicle seat used side view involved by the 2nd variation.

Figure 38 is the vehicle seat used side view involved by the 3rd variation.

Figure 39 (a), Figure 39 (b) are the sectional views of the engaging guide portion involved by the 4th variation.

Figure 40 is the stereogram of the vehicle seat used framework for being built in the 5th variation.

Figure 41 (a), Figure 41 (b) are the figures for representing the cap assembly involved by the 6th variation.

Figure 42 is the stereogram of the mounting structure for representing travel mechanism and backboard involved by the 7th variation.

Figure 43 is the stereogram of the mounting structure for representing travel mechanism and backboard involved by the 8th variation.

Figure 44 is the figure of the structure for representing the hook portion involved by the 9th variation.

Figure 45 (a), Figure 45 (b) are the figures of the structure for representing the hook portion involved by the 10th variation.

Specific embodiment

Below, referring to the drawings, embodiment is illustrated.In addition, in the present invention, around, up and down being sitting in On the basis of people's (seated person) on vehicle seat.

The embodiment ＞ of ＜ the 1st

As shown in figure 1, the vehicle seat involved by the 1st embodiment is the vehicle used in the pillion of automobile using Seat S, is made up of left-side seat SL on the left of being configured at right-side seat SR on right side and being configured at.Below, to the application present invention The structure of left-side seat SL of mounting structure illustrate.

Left-side seat SL mainly has seat cushion S10, backrest S20 and headrest S30.Detailed action is said later Bright, left-side seat SL is configured to：When seat cushion S10 is moved forward, backrest S20 rearward topples over (structure relative to seat cushion S10 Becoming to tumble) (with reference to Fig. 8).

Seat cushion S10 has cushion frame F1 of the frame-shaped shown in Fig. 2, by covering by polyurethane foam in cushion frame F1 The bolster of the compositions such as foam and the epidermis that is made up of leather or fabric etc. and constitute.In addition, cushion frame F1 is configured to：With energy The movable mode of enough base plates relative to vehicle body (vehicles bodies) is arranged on the base plate of the vehicle body, when being tumbled Actuator (actuator) AC is driven during action by operation of seated person etc., accordingly making cushion frame F1 relative to car Body is moved forward or rearward.

Backrest S20 has backrest frame F2, by covering by polyurethane foam on backrest frame F2 The epidermis that constitutes etc. the bolster of composition and by leather or fabric etc. and constitute.Backrest frame F2 is mainly by upper frame 10 and lower frame 20 constitute, wherein, upper frame 10 constitute backrest S20 upper portion framework, lower frame 20 Constitute the framework of the lower portion of backrest S20.

Upper frame 10 is made up of metal tubing, the vertical frame section 11 with the left and right for extending up and down and crossing frame portion 12, the crossing frame portion 12 or so extends and connects the upper end of vertical frame section 11,11 each other.In crossing frame portion 12, it is fixed with For installing the supporting support 13 of headrest S30.

Lower frame 20 is made up of the metal tubing for being bent into substantially U-shaped.The bottom peace of lower frame 20 Loaded on backrest mounting bracket B1 that the rearward end in cushion frame F1 is arranged, and the lower frame 20 can be with along right and left Rotate to centered on the axle A1 for extending.Thus, lower frame 20 can be rotated relative to before and after cushion frame F1.In addition, in detail Attachment structure illustrate later, the upper end of lower frame 20 is connected with upper frame 10, and the energy of lower frame 20 It is enough to be rotated centered on the axle A2 for extending in left-right direction.Accordingly, lower frame 20 can turn relative to before and after upper frame 10 Dynamic, backrest S20 can make upper portion and lower portion be in substantially V-like shape in middle warpage.

The backrest S20 for so constituting is arranged on backboard 60 using travel mechanism M in the way of it can move up and down, The backboard 60 is configured in the rear of backrest S20.

Travel mechanism M is the mechanism that backrest frame F2 can be made to move up and down relative to backboard 60, mainly by connecting Constitute with the plate sidepiece part 40 for being connected to backboard 60 in the frame side part 30 of backrest frame F2.

As shown in Fig. 3 (a), frame side part 30 has pair of right and left directed section 31 and framework mounting bracket 32, the frame Frame mounting bracket 32 is used to for frame side part 30 to be installed on backrest frame F2.

Framework mounting bracket 32 is formed by making metal sheet metal bending, is had：Fixed part 32A；A pair of connecting portion 32B, it extends forward from the left and right two ends of fixed part 32A；With pair of right and left frame mounting portion 32C, it is from each connecting portion 32B's In the lateral direction outside extends for front end.

Here, illustrating for the attachment structure of upper frame 10 and lower frame 20.

The bottom of each vertical frame section 11 is fixed on the front side of the frame mounting portion 32C of framework mounting bracket 32 by welding etc. Face, accordingly, upper frame 10 is connected with frame side part 30.On the other hand, the upper end of lower frame 20 is respectively by left and right A pair of support member 50 is supported, and the lower frame 20 can in front and back be rotated centered on axle A2.

Also, frame side part 30 is engaged with supporting member 50 and is integrally formed.Specifically, as amplified table in Fig. 3 (b) As showing, supporting member 50 has：1st base portion 51, its from the left and right two ends of each frame mounting portion 32C in the lateral direction outside It is continuous to extend；1st support 52, its end from the outside of the left and right directions of the 1st base portion 51 extends forward, and the one of bolt 56 End, the bolt 56 is pivotally connecting lower frame 20 and supporting member 50；2nd part 53, it passes through welding Deng and be fixed on the leading flank of the 1st base portion 51.2nd part 53 has：2nd base portion 54, it is fixed on the 1st base portion 51；2nd supporting Portion 55, its end from the inside of the left and right directions of the 2nd base portion 54 extends forward, the other end of bolt 56.

By such attachment structure, the side in upper frame 10 and lower frame 20 is connected with the opposing party, and this one Side can in front and back be rotated relative to the opposing party centered on axle A2.

Directed section 31 is the bar-like member for guiding it to move up and down by plate sidepiece part 40, and the lower side for extending above Formula is configured.More specifically, the left-right situs of each directed section 31 are configured, thereon fixed part of the end from framework mounting bracket 32 In the state of the upper edge of 32A is protruded upward, its bottom is fixed on the trailing flank of fixed part 32A by welding etc..

As shown in figure 4, plate sidepiece part 40 has pair of right and left holding section 41 and plate mounting bracket 42, the plate mounting bracket 42 For plate sidepiece part 40 to be arranged on into backboard 60.

Plate mounting bracket 42 is formed by making metal sheet metal bending, is had：Fixed part 42A；A pair of connecting portion 42B；It extends back from the left and right two ends of fixed part 42A；Pair of right and left plate installation portion 42C, it is from the rear end of each connecting portion 42B In the lateral direction outside extends.

Holding section 41 is the part of tubular, with the state of left-right situs, by welding etc. the front side of fixed part 42A is fixed on On face.Each holding section 41 engages respectively with frame side part 30 a, corresponding directed section 31, so that directed section 31 Mobile state can be slided up and down and keep the directed section 31.Accordingly, the guiding frame sidepiece part 30 of plate sidepiece part 40 on move down It is dynamic.

The plate installation portion 42C of plate mounting bracket 42 is fixed on into the bottom of the recess 63 being arranged on backboard 60 by bolt etc. Portion, is accordingly fixed on plate sidepiece part 40 on backboard 60.

As shown in figure 5, backboard 60 is the part by being formed to metal sheet material pressurization etc., it is configured in seat and leans on Carry on the back the rear of S20 (vehicle seat used S) and constitute a part for vehicle body.In the present embodiment, backboard 60 is right in substantially left and right Claim, mainly have：Seat forward surface 61, it is relative with backrest S20；In the through hole 62 of the upper shed of seat forward surface 61 and recessed Portion 63；Engaging guide portion 64, it is arranged on the bottom of recess 63.

Seat forward surface 61 is formed as the roughly planar extended along the moving direction of backrest S20.

Through hole 62 is formed in order to realize the lightweight etc. of backboard 60 in the central authorities of backboard 60.

Recess 63 is arranged on the left and right sides of through hole 62, and with relative to the rearward recessed mode of seat forward surface 61 Formed.In the present embodiment, plate sidepiece part 40 is fixed on the bottom of the recess 63 in left side.

Recess 63 is arranged to：Form that above-below direction is longer, main visual observation when rectangle substantially, in the recess 63, The directed section 31 that frame side part 30 can be made is engaged from below with the holding section 41 of plate sidepiece part 40.Specifically, Recess 63 is sized to：The entirety of frame side part 30 is entered and be installed in the recess 63, plate sidepiece part The lower position of 40 holding section 41, wherein, plate sidepiece part 40 is fixed on the part (reference by the top of the bottom of recess 63 Fig. 7 (b)).

In addition, recess 63 is arranged to：When backrest S20 is installed on backboard 60, by making backrest S20 Upper end ST (with reference to Fig. 7 (a)) align with upper edge 63A of the recess 63 such that it is able to frame side part 30 is drawn The holding section 41 for leading portion 31 and plate sidepiece part 40 is aligned in the position that can realize engaging.Specifically, as shown in fig. 6, recess 63 are arranged to：In the vertical direction, from it the interval D 1 of edge 63A to the lower end of the holding section 41 of plate sidepiece part 40 is little In the interval D 2 of the upper end of the directed section 31 from the upper end ST of backrest S20 to frame side part 30.

As shown in figure 4, engaging guide portion 64 is disposed on the bottom of recess 63 in the longer channel-shaped recess of above-below direction Point, it is each provided with an engaging guide portion in the lower section of each holding section 41 of the plate sidepiece part 40 of the bottom for being fixed on recess 63 64.More specifically, engage guide portion 64 to be formed as：Depth gradually becomes shallower as with the hole towards holding section 41.Accordingly, as general Backrest S20 to backboard 60 install when, draw along the engaging of channel-shaped in the upper end of the directed section 31 for making frame side part 30 Lead portion 64 configure while, move up frame side part 30 (backrest S20), hereby it is possible to by directed section 31 to The hole guiding of holding section 41.

As shown in fig. 6, in the state of backrest S20 to be installed on backboard 60, seat forward surface 61 is leaned on along seat Carry on the back the rear surface of S20 and configure.Furthermore, in the present embodiment, backrest S20 is configured in surface thereafter and the back of the body The position that the seat forward surface 61 of plate 60 connects.

In addition, in the state of backrest S20 to be installed on backboard 60, travel mechanism M is with into the shape in recess 63 State is configured.Furthermore, in the present embodiment, the part being connected with backboard 60 in travel mechanism M, i.e. plate sidepiece part 40 The state configuration in recess 63 is entered and is housed in its entirety.

Then, backrest S20 is illustrated to the installation of backboard 60.

Backrest S20 makes as follows, i.e. as shown in Fig. 2 upper frame 10 is fixed on into frame side part 30, Lower frame 20 is pivotally connected to the supporting member 50 being integrally formed with frame side part 30, accordingly assembling seat Back frame F2, also, in the state of directed section 31 is exposed, bolster and table are covered on backrest frame F2 Skin.In addition, as shown in figure 5, the bottom of the recess 63 in the backboard 60 for being fixed on vehicle body, fixed plate sidepiece part 40.

As shown in Fig. 7 (a), when in 60 upper mounting seat chair back S20 of backboard, first, the upper end ST of backrest S20 is made Height and position and upper edge 63A of the recess 63 for being arranged at backboard 60 aligned in position.Accordingly, in the vertical direction, frame The upper end of the directed section 31 of frame sidepiece part 30 is configured in the lower section of the lower end of the holding section 41 of plate sidepiece part 40.

Then, the height and position of backrest S20 is kept, and makes it near backboard 60, such as shown in Fig. 7 (b), will be from seat The frame side part 30 that the rear portion of chair back S20 projects is housed in the space of the lower section of the plate sidepiece part 40 in recess 63.

Afterwards, while adjusting left and right, the position in front and back of backrest S20, while making being directed for frame side part 30 Engaging guide portion 64 of the upper end in portion 31 with channel-shaped engages, also, makes the upper end of directed section 31 along engaging guide portion 64 Move up backrest S20 while configuration.Accordingly, the upper end of directed section 31 is in the same of the engaged guiding of guide portion 64 When engage with the holding section 41 of plate sidepiece part 40, thus by backrest S20 be arranged on backboard 60 on.

In the present embodiment, as shown in Fig. 7 (a), (b), frame side part 30 can be made to initially enter in recess 63, it It is sticked in plate sidepiece part 40 from below afterwards to be assembled, therefore, it is possible to improve when backrest S20 is installed on into backboard 60 Workability.

Further, since engaging guide portion 64 is provided with backboard 60, thus, it is easy to frame side part 30 is sticked in into plate The holding section 41 of sidepiece part 40.In addition, the upper end ST for making backrest S20 aligns with upper edge 63A of recess 63, thus, In the vertical direction, frame side part 30 and plate sidepiece part 40 can be aligned in the position that can be engaged, thus, it is easy to Frame side part 30 is sticked in into plate sidepiece part 40.Thus, in the present embodiment, can further improve backrest S20 is installed on workability during backboard 60.

Also, in the present embodiment, the upper portion and lower portion of backrest S20 can in middle warpage, therefore, When backrest S20 is installed on into backboard 60, even if the lower portion of backrest S20 contacts with underbody, by making The lower portion of backrest S20 bending forward, without hindering installation exercise.Hereby it is possible to further improve make framework side Part 30 engages from below with plate sidepiece part 40 and backrest S20 is installed on the workability of the operation of backboard 60.

After backrest S20 to be installed on backboard 60, as shown in fig. 6, seat cushion S10 is connected into backrest S20, And seat cushion S10 can be rotated centered on axle A1, also, seat cushion S10 is arranged on the base plate of vehicle body.Also, will headrest S30 is arranged on backrest S20, accordingly, vehicle seat used S (left-side seat SL) is arranged on vehicle body.Now, seat is leaned on The rear surface of back of the body S20 connects with the seat forward surface 61 of backboard 60.

Then, the action of tumbling to vehicle seat used S (left-side seat SL) is illustrated.

When actuator AC (with reference to Fig. 2) from the state shown in Fig. 6, is driven by operation of seated person etc., cushion frame F1 is made When (seat cushion S10) is moved forward, shown in such as Fig. 8 (a), pulled by cushion frame F1, the lower frame 20 of backrest frame F2 Bottom move forward.Accordingly, the one side of lower frame 20 is rotated forward centered on axle A2 and is moved downwards on one side, accordingly and Upper frame 10 is pulled downwards, and upper frame 10 is moved down by travel mechanism M relative to backboard 60.As a result, such as Fig. 8 B shown in (), backrest S20 becomes the state rearward toppled over relative to seat cushion S10.

On the other hand, when from the state shown in Fig. 8 (b), driving actuator AC, when being moved rearwards by cushion frame F1, such as Shown in Fig. 8 (a), pushed by cushion frame F1, the bottom of the lower frame 20 of backrest frame F2 is moved rearwards by.Accordingly, The one side of lower frame 20 is rotated backward while be moved upward centered on axle A2, is thus pushed up upper frame 10, top Framework 10 is moved up by travel mechanism M relative to backboard 60.As a result, as shown in fig. 6, backrest S20 is relative to seat Pad S10 becomes raised state.

Present embodiment from the description above, as shown in fig. 6, travel mechanism M is with the recess 63 into backboard 60 State is configured, therefore, it is possible to so that the backrest S20 states that make backrest S20 and backboard 60 close near backboard 60 To configure.Hereby it is possible to suppress to form dead band (Dead between the seat forward surface 61 and backboard 60 of backrest S20 Space), and guarantee backrest S20 front side space.

Especially in the present embodiment, backrest S20 is configured in what is connected with the seat forward surface 61 of backboard 60 Position, therefore, it is possible to further suppress to form dead band between the seat forward surface 61 and backboard 60 of backrest S20, and And guarantee the front space of backrest S20.In addition, backrest S20 connects with backboard 60, accordingly, backboard 60 can with compared with Large area bearing the load from backrest S20, therefore, it is possible to stably support backrest S20.

In addition, the frame side part 30 of travel mechanism M is fixed on the bottom of upper frame 10, therefore, it is possible to move Near the central authorities of mechanism M configurations backboard 60 in the vertical direction.Hereby it is possible to pass through travel mechanism M in the central authorities of backboard 60 Nearby bearing the load from backrest S20, therefore, it is possible to stably support backrest S20.

In addition, frame side part 30 is engaged in rotatably support lower frame 20, high rigidity supporting Part 50 is engaged, and still further, the supporting member 50 of frame side part 30 and high rigidity is integrally formed, therefore, it is possible to carry The assembling rigidity of high frame side part 30, i.e. travel mechanism M.

The embodiment ＞ of ＜ the 2nd

As shown in figure 9, the vehicle seat involved by the 2nd embodiment is configured to the car used in the pillion of automobile Use seat S.In addition, below, pair structural element is constituted with the embodiment identical for illustrating before, the same mark of mark, and Suitably omit its description.

Vehicle seat used S mainly has：Center seat S1；Left-side seat S2, it is adjacent in the left side of center seat S1；It is right Side seat S3, it is adjacent in the right side of center seat S1；Left side S4, it is adjacent to be leaned in the seat of left-side seat S2 The left side of back of the body S20；Right side S5, it is adjacent to the right side of the backrest S20 in right-side seat S3；With passage (pipe section Part, duct) 80.In the present embodiment, vehicle seat used S is in substantially symmetrical structure, therefore, below, to left side seat The structure of chair S2 sides is illustrated.

Left-side seat S2 mainly has seat cushion S10, backrest S20 and headrest S30.Detailed action is said later Bright, left-side seat S2 is configured to：When seat cushion S10 is moved forward, backrest S20 rearward topples over (structure relative to seat cushion S10 Becoming to tumble) (with reference to Figure 16).

In the present embodiment, backrest S20 is an example of seat portion.Therefore, in the present embodiment, left and right " the 1st direction " that direction arranges equivalent to backrest S20 and as the left side S4 of an example of sidepiece, fore-and-aft direction phase When in seated person and backrest S20 opposite " the 2nd direction ", above-below direction is double equivalent to perpendicular to the 1st direction and the 2nd direction " the 3rd direction " of side.

Seat cushion S10 is built-in with cushion frame F1 of the frame-shaped as shown in Figure 10, by covering in cushion frame F1 The bolster being made up of polyurethane foam etc. and the epidermis being made up of leather or fabric etc. are constituted.In addition, cushion frame F1 is constituted For：Can be arranged in the way of movable on the base plate of vehicle body relative to the base plate of vehicle body (vehicles bodies), when entering Row tumble action when, actuator AC is driven by operation of seated person etc. so that cushion frame F1 relative to vehicle body forward Or be moved rearwards by.

The backrest frame F2 of the built-in example as seat frame of backrest S20, and by leaning in seat The bolster being made up of polyurethane foam etc. and the epidermis that is made up of leather or fabric etc. are covered on back frame frame F2 and is constituted.Seat Mainly there is back frame F2 main frame F21 and extension F22, extension F22 to be configured to from main frame F21 to the left and right Direction outside (left side S4 sides) extends.

Main frame F21 with lower component mainly by being constituted：Upper frame 10, it constitutes the upper portion of main frame F21；Under Portion's framework 20, it constitutes the lower portion of main frame F21；Supporting member 330, its connection upper frame 10 and lower frame 20； With the directed section 31 as pair of right and left guided member.

Upper frame 10 is made up of metal tubing, is had：The vertical frame section 11 of the left and right for extending up and down and crossing frame Portion 12, the crossing frame portion 12 or so extends, and connects the upper end of vertical frame section 11,11 each other.It is fixed in crossing frame portion 12 There is the supporting support 13 for resting the head on S30 for mounting head.

Lower frame 20 is made up of the metal tubing for being bent into substantially U-shaped.The bottom of lower frame 20 with The backrest mounting bracket B1 connection of the rearward end of cushion frame F1 is arranged at, and the lower frame 20 can be with along right and left Rotate to centered on the axle A1 for extending.Accordingly, lower frame 20 can be rotated relative to before and after cushion frame F1.

As shown in Figure 11 (a), supporting member 330 is formed by making metal sheet metal bending, with the 1st part 332 With the part 33 of pair of right and left the 2nd.1st part 332 has：Fixed part 32A；A pair of connecting portion 32B, it is from a left side of fixed part 32A Right two ends extend forward；Pair of right and left frame mounting portion 32C, from the front end of each connecting portion 32B, in the lateral direction outside extends for it； With the 1st support 32D, its end from the outside of the left and right directions of each frame mounting portion 32C extends forward.In addition, such as Figure 11 (b) Shown, the 2nd part 33 has base portion 33A and the 2nd support 33B, and the 2nd support 33B is from the left and right directions inner side of base portion 33A End extend forward.2nd part 33 is configured to：Base portion 33A is fixed on by welding etc. for the front side of frame mounting portion 32C End on the outside of the left and right directions in face, accordingly, the 2nd support 33B is opposite with the 1st support 32D in the lateral direction.

As shown in Figure 10 and Figure 11, the bottom of each vertical frame section 11 is fixed on by frame mounting portion 32C by welding etc. Leading flank left and right directions on the inside of end, accordingly, upper frame 10 is connected with supporting member 330.In addition, lower frame 20 It is positioned respectively between the 1st support 32D and the 2nd support 33B with each upper part, and can is with axle A2 in left-right direction The mode rotated before and after center, is connected via support 32D, 33B by bolt 56 with supporting member 330.Accordingly, upper box Frame 10 and lower frame 20 can in front and back be rotated relative to the opposing party by a side by supporting member 330 centered on axle A2 Mode is supported by, and backrest S20 is in the way of upper portion and lower portion are in substantially V-like shape in middle warpage (reference Figure 16 (b)).

Directed section 31 is the bar-like member that can be guided and be moved up and down by plate sidepiece part 40 described later.Such as Figure 11 Shown in (a), the configuration of the left-right situs of directed section 31, upper end from the upper edge of the fixed part 32A of supporting member 330 upwards In the state of stretching out, bottom is fixed on by welding etc. for the trailing flank of fixed part 32A, accordingly directed section 31 and support Part 330 is engaged.

The main frame F21 (backrest frame F2) for so constituting is configured to：Can be by plate sidepiece part 40, relative to car Body is moved up and down.

Plate sidepiece part 40 has pair of right and left holding section 41 and plate mounting bracket 42.Plate mounting bracket 42 is by making metal system Sheet metal bending and formed, and have：Fixed part 42A；A pair of connecting portion 42B, it prolongs backward from the left and right two ends of fixed part 42A Stretch；Pair of right and left plate installation portion 42C, from the rear end of each connecting portion 42B, in the lateral direction outside extends for it.Holding section 41 is to supply quilt The cartridge of the engaging of guide portion 31, the holding section 41 passes through welding in the leading flank of fixed part 42A with the state of left-right situs Deng being fixed.Each holding section 41 keeps directed section 31, and the directed section 31 is slidably.By bolt etc. by plate installation portion 42C is fixed on and is configured in the rear of vehicle seat used S, the backboard 60 shown in Figure 10, and accordingly, plate sidepiece part 40 is fixed on the back of the body On plate 60 (vehicle body).

Backrest frame F2 is arranged to：Slided relative to plate sidepiece part 40 (holding section 41) by directed section 31, And can be relative to vehicle body, in the initial position shown in Figure 16 (a) and positioned at shown in the lower section of initial position, Figure 16 (b) Move up and down between lower position.

As shown in figure 12, extension F22 is the part for supporting load bearing part M3 (Figure 14 references) described later, by conduct The structure of lower projection 210 of the upper extension 110 of one example of the 1st extension and an example as the 2nd extension Into.Upper extension 110 and lower projection 210 spread configuration in the vertical direction, and upper extension 110 is configured in The top of lower projection 210.

Upper extension 110 and lower projection 210 are formed respectively by making metal bar-like member bending.It is more detailed For thin, upper extension 110 has：Part 1 111, the diagonal extension on the top of the vertical frame section 11 in its edge is to the left and right Oblique upper on the outside of direction extends；Part 2 112, from the upper end of part 1 111, in the lateral direction outside extends for it；3rd Divide 113, its end from the outside of the left and right directions of part 2 112 extends forward；7th part 117, it is along vertical frame section 11 Bottom and extend up and down；6th part 116, from the upper end of the 7th part 117, in the lateral direction outside extends for it；5th part 115, Its end from the outside of the left and right directions of the 6th part 116 extends forward；With the 4th part 114, it is connecting third portion 113 The mode of the front end of front end and the 5th part 115 extends up and down.

In addition, lower projection 210 has：Part 1 211, it is along the lower extension upwards of lower frame 20；Part 2 212, from the upper end of part 1 211, in the lateral direction outside extends for it；Third portion 213, it is from the right and left of part 2 212 End laterally extends forward；7th part 217, it extends along lower frame in the downside of part 1 211 about 20；6th Part 216, from the lower end of the 7th part 217, in the lateral direction outside extends for it；5th part 215, its left side from the 6th part 216 End on the outside of right direction extends forward；With the 4th part 214, its front end and the 5th part 215 to connect third portion 213 The mode of front end extends up and down.

In addition, upper extension 110 and lower projection 210 have for constantly acting load bearing part M3 (with reference to Figure 14) Fixed plate 120,220.Top tie plate 120 has：1st fixed part 121, it is configured to be erected at part 1 111 and Between 6 parts 116, and fixed by welding；2nd fixed part 122, its end from the outside of the left and right directions of the 1st fixed part 121 Portion extends forward.In addition, lower tie plate 220 has：1st fixed part 221, it is by being fixedly welded on the 7th part 217；With 2nd fixed part 222, its end from the outside of the left and right directions of the 1st fixed part 221 extends forward.

The upper extension 110 for so constituting and lower projection 210 in the vertical direction, are arranged at and avoid support The position of part 330.Specifically, as shown in figure 13, upper extension 110 is set to：In the upside of supporting member 330, pass through Upper and lower carrier unit 300 is fixed on the vertical frame section 11 in the left side of upper frame 10, accordingly, prolongs to the left from upper frame 10 Stretch.In addition, lower projection 210 is set to：In the lower position of supporting member 330, fixed by upper and lower carrier unit 300 In lower frame 20, accordingly, extend to the left from lower frame 20.

As shown in figure 12, carrier unit 300 is made up of a pair of mounting brackets 310 before and after being symmetrically formed in front and back.It is each to install Support 310 is formed by metal sheet material, the stator of the framework holding section 311 with substantially semi-circular cylindrical and a pair of plates shape 312, the stator 312 of a pair of plates shape extends in left-right direction from the left and right two ends of framework holding section 311.

A pair of mounting brackets 310 are in the state of tubing (vertical frame section 11 or lower frame 20) is clipped before and after, making Framework holding section 311 is sticked in tubing, and the bolt of each stator 312 is anchored on into the mounting bracket 310 of the opposing party opposite with it Stator 312 on, accordingly a pair of mounting brackets 310 are fixed on tubing.Also, by welding upper extension 110 Part 1 111, the 7th part 117, the part 1 211 of lower projection 210, the 7th part 217 be held within right and left On the end of stator 312 laterally, main frame F21 and extension F22 are coupled together accordingly.

As shown in figure 14, load bearing part M3 is by upper load bearing part 130 and the structure of underlying load bearing part 230 Into.Upper load bearing part 130 is formed as the substantially box like of rear and opened downward by resin etc., and by bolt etc. by a left side Side wall on the inside of right direction is fixed on top tie plate 120, and accordingly, upper load bearing part 130 is installed in top extension In portion 110.In addition, underlying load bearing part 230 is formed as the unlimited substantially box like in rear and top by resin etc., and pass through Side wall on the inside of left and right directions is fixed on lower tie plate 220 by bolt etc., and accordingly underlying load bearing part 230 is installed in On lower projection 210.

Upper load bearing part 130 and underlying load bearing part 230 are respectively configured as：From forward observation, with passage 80 overlap, the wall 131,231 on front side of it be configured on the left and right directions of passage 80 with the Chong Die part of extension 110,120 Front side (seated person side).

As shown in figure 15, left side S4 is the portion of the back part that vehicle seat used S is constituted together with backrest S20 etc. Part, is adjacent in the side of backrest S20.Left side S4 has framework (not shown), and by covering on the frame Bolster and epidermis and constitute.In the present embodiment, left side S4 is fixed in the way of it will not move relative to vehicle body.

Passage 80 is tubular part, in order to be cooled in electric automobile and hybrid vehicle etc. in be configured in after backboard 60 The battery 66 of side, passage 80 supplies the air of cooling into housing 67 of the receipts equipped with battery 66 from compartment.Passage 80 The opening portion 80A of one side is provided in left side S4, connects in front space, the i.e. compartment with left side S4.In addition, passage 80 The opening portion 80B of the opposing party be configured in housing 67, connect with the space being configured with the housing 67 of battery 66.In addition, The epidermis for covering left side S4 has gas permeability, so that the air that can be taken into from opening portion 80A in compartment.In present embodiment In, passage 80 is fixed to move relative to vehicle body.

When observing from above-below direction, passage 80 is configured to：With from the rear position of the left part of main frame F21, Jing By between upper extension 110 and lower projection 210, the mode into the S4 of left side, outside in the lateral direction it is oblique before Fang Yanshen.Accordingly, passage 80 is configured to：Central portion on left and right directions from above-below direction observe, with upper extension 110 and Lower projection 210 is overlapped.In addition, the 4th part 214 of lower projection 210 is always observed from upper and lower, passage is configured in The front side of the central portion on 80 left and right directions.

As shown in figure 13, passage 80 is configured to：When observing from fore-and-aft direction, with from after the left part of lower frame 20 The position of side, the mode entered in the S4 of left side between upper extension 110 and lower projection 210, to the left right Oblique upper laterally extends.Passage 80 is configured to：Avoid as backrest frame F2 is from initial position position downwards Move and the moving range of the movement of upper extension 110.Specifically, passage 80 is in shown in Figure 13 in backrest frame F2 Initial position when, be configured under upper extension 110 with the state that interval D 5 is vacated between upper extension 110 Side, wherein, interval D 5 is than with backrest frame F2, from initial position position movement downwards, upper extension 110 is downward The displacement of Fang Yidong is big.

In addition, when backrest frame F2 is in initial position, passage 80 is with the interval between lower projection 210 D6 is less than its mode with the interval D 5 between upper extension 110, is configured in the state of close lower projection 210 The top of lower projection 210.

Then, the action of tumbling to vehicle seat used S is illustrated.

When actuator AC (with reference to Figure 10) from the state shown in Figure 16 (a), is driven by operation of seated person etc., cushion frame is made When frame F1 (seat cushion S10) is moved forward, pulled by cushion frame F1, the bottom of the lower frame 20 of backrest frame F2 to Front movement.Accordingly, lower frame 20 is rotated forward on one side centered on axle A2 and moved downwards on one side, is pulled accordingly and downwards Portion's framework 10, upper frame 10 is guided by plate sidepiece part 40, while relative to the movement of the slide downward of backboard 60.As a result, as schemed Shown in 16 (b), backrest S20 becomes the state rearward toppled over relative to seat cushion S10.

Now, as the lower position shown in backrest frame F2 from the initial position to Figure 17 shown in Figure 13 is moved, The slide downward of upper frame 10 move, accordingly, upper extension 110 to be close to passage 80 in the way of slide downward movement, with Backrest frame F2 is rotated forward on one side from initial position position movement downwards, the one side of lower frame 20 centered on axle A2 Move downwards, accordingly, lower projection 210 is moved in the way of away from passage 80 to oblique front lower place.In the present embodiment, Passage 80 is configured to, and avoids as backrest frame F2 is from the initial position top that downwards position is moved and moved The moving range of extension 110, therefore, as shown in figure 17, backrest frame F2 is prevented from from the downward orientation of initial position When putting mobile, upper extension 110 (backrest frame F2) and the interference of passage 80.

When from the state shown in Figure 16 (b), actuator AC being driven, when cushion frame F1 is rearward moved, by cushion frame Frame F1 is pushed, and the bottom of the lower frame 20 of backrest frame F2 is rearward moved.Accordingly, lower frame 20 is with axle A2 Center is rearward rotated on one side while be moved upward, and thus pushes up upper frame 10, and upper frame 10 is by plate sidepiece part 40 guide and move relative to the upward sliding of backboard 60.As a result, as shown in Figure 16 (a), backrest S20 is relative to seat cushion S10 becomes raised state.

Present embodiment from the description above, as shown in figure 15, passage 80 is configured to：Observe from above-below direction, with Upper extension 110 and lower projection 210 are overlapped, therefore, with the rear portion for being for example configured to passage and extending through portion, extend To the left and right directions outside of extension, the structure on the outside of the left and right directions in portion is extended through afterwards and is compared, before and after can suppressing The maximization of the vehicle seat used S on direction, left and right directions.Hereby it is possible to suppress the maximization of vehicle seat used S, and Passage 80 is arranged in vehicle seat used S.As a result, in kart etc., it is also possible to apply to be arranged in vehicle seat used S and lead to The structure in road 80.In addition, passage 80 is configured to, from above-below direction observation, with upper extension 110 and lower projection 210 Overlap, hereby it is possible to freely design the shape of passage 80 to a certain extent, in other words, can freely set to a certain extent Put matched tube structure.

In addition, in the present embodiment, the 4th part of load bearing part M3 (Figure 14 references) and lower projection 210 214 front sides for being configured in passage 80, therefore, it is possible to be prolonged by the bottom for constituting load bearing part M3 and backrest frame F2 Extending portion 210 bears the load from seated person.Also, in the present embodiment, passage 80 is configured in the He of upper extension 110 Between lower projection 210, therefore, it is possible to by the upper extension 110 and lower projection 210 for constituting backrest frame F2 To bear the load from above-below direction.Hereby it is possible to suppress to the hollow imposed load of passage 80.

In addition, in the present embodiment, as shown in figure 13, when backrest frame F2 is in initial position, passage 80 Become less than the interval D 5 of passage 80 and upper extension 110 with the interval D 6 of lower projection 210, on reducing The interval of lower section upper extension 110 upwards and lower projection 210.Hereby it is possible to make the backrest on above-below direction Framework F2 (backrest S20) densification.

In addition, in the present embodiment, upper extension 110 and lower projection 210 in the vertical direction, are arranged on and keep away The position of supporting member 330 is opened, therefore, extension is set with the moving part for being used to make backrest that middle warpage to occur Structure compares, and extension F22 can be arranged by simple structure.Hereby it is possible to overall simplification backrest frame F2 Structure.

In addition, in the present embodiment, directed section 31 engages with supporting member 330, therefore, it is possible to be integrally formed Gao Gang The supporting member 330 of property and directed section 31, wherein, the supporting member 330 of high rigidity pivotally supports upper box Frame 10 and lower frame 20.Hereby it is possible to the assembling rigidity of directed section 31 is improved, it is overall to improve the firm of backrest frame F2 Property.

The embodiment ＞ of ＜ the 3rd

As shown in figure 18, the vehicle seat involved by the 3rd embodiment is the vehicle used in the pillion of automobile Seat S is used, main center seat S1 with an example as the 1st adjacent component, as an example of the 1st seat Left-side seat S2, as the 2nd seat an example right-side seat S3, as the 2nd adjacent component an example left side Portion S4 and right side S5.

Left-side seat S2 mainly have as the 1st seat cushion an example seat cushion S21, as the one of the 1st backrest The backrest S22 of individual example, headrest S23, as the 1st armrest an example armrest S24 and as the one of the 3rd armrest The armrest S25 of individual example.Armrest S24 is arranged on backrest S22, the right side as the side for being configured with center seat S1 Side, armrest S25 is arranged on backrest S22, left side as the side for being configured with left side S4.

Detailed action is illustrated later, and as shown in figure 19, left-side seat S2 is configured to：When seat cushion S21 is to reach When dynamic, backrest S22 rearward topples over (be configured to tumble) relative to seat cushion S21.

Seat cushion S21 has cushion frame F1 of the frame-shaped shown in Figure 20, by covering by polyurethane in cushion frame F1 The bolster of the compositions such as foam and the epidermis that is made up of leather or fabric etc. and constitute.In addition, cushion frame F1 is configured to：With Can be arranged on the base plate of vehicle body, when being tumbled relative to the mode that the base plate of vehicle body (vehicles bodies) is moved forward and backward During action, drive actuator AC, accordingly, be moved forward or rearward relative to vehicle body by operation of seated person etc..

Backrest S22 has backrest frame F2, by covering by polyurethane foam on backrest frame F2 The epidermis that constitutes etc. the bolster of composition and by leather or fabric etc. and constitute.Backrest frame F2 mainly has：Upper box Frame 10, it constitutes the framework of the upper portion of backrest S22；With lower frame 20, it constitutes the following side of backrest S22 The framework for dividing.

Upper frame 10 is made up of metal tubing, the vertical frame section 11 with the left and right for extending up and down and crossing frame portion 12, the crossing frame portion 12 or so extends and connects the upper end of vertical frame section 11,11 each other.Use is fixed with crossing frame portion 12 In the supporting support 13 for installing headrest S23.

Lower frame 20 is made up of the metal tubing for being bent into substantially U-shaped.The bottom of lower frame 20 with The backrest mounting bracket B1 connection of the rearward end of cushion frame F1 is arranged at, and the lower frame 20 can be with along right and left Rotate to centered on the axle A1 for extending.Accordingly, lower frame 20 can be rotated relative to before and after cushion frame F1.In addition, in detail Attachment structure illustrate later, the upper end of lower frame 20 is connected with upper frame 10, and the energy of lower frame 20 It is enough to be rotated centered on the axle A2 for extending in left-right direction.Accordingly, lower frame 20 can turn relative to before and after upper frame 10 Dynamic, backrest S22 is in the way of upper portion and lower portion are in substantially V-like shape in middle warpage.

So constitute backrest S22 by way of travel mechanism M is moving up and down, installed in backboard 60 On, the backboard 60 is configured in the rear portion of backrest S22.

Armrest S24, S25 have respectively armrest framework F4, are constituted by covering epidermis etc..One end of each armrest framework F4 Portion is connected by being fixed on the support B2 of lower frame 20 with lower frame 20, and each armrest framework F4 can be with along left and right Rotate centered on the axle A3 that direction extends.Accordingly, armrest S24, S25 can be relative to backrest S22, as when using The use state of state and the receipts as state when not using are filled and rotated between state (with reference to Figure 18).

Travel mechanism M is such a mechanism：Backrest frame F2 (backrest S22) can be made relative to backboard 60, move up and down in initial position (with reference to Figure 18) and between the lower position (with reference to Figure 19) of the lower section of initial position. Travel mechanism M mainly has：Frame side part 30, it is connected with backrest frame F2；With plate sidepiece part 40, itself and backboard 60 Connection.

As shown in Figure 21 (a), frame side part 30 has pair of right and left directed section 31 and framework mounting bracket 32, the frame Frame mounting bracket 32 is used to for frame side part 30 to be arranged on backrest frame F2.

Framework mounting bracket 32 is formed by making metal sheet metal bending, is had：Fixed part 32A；A pair of connecting portion 32B, It extends forward from the left and right two ends of fixed part 32A；With pair of right and left frame mounting portion 32C, it is from the front end of each connecting portion 32B In the lateral direction outside extends.

The bottom of each vertical frame section 11 is fixed on the front side of the frame mounting portion 32C of framework mounting bracket 32 by welding etc. Face, accordingly, upper frame 10 is connected with frame side part 30.On the other hand, the upper end of lower frame 20 is respectively by left and right A pair of support member 50 is supported by, and the lower frame 20 can in front and back be rotated centered on axle A2.

Also, frame side part 30 is engaged with supporting member 50 and is integrally formed.Specifically, as Figure 21 (b) amplifies table As showing, supporting member 50 has：1st base portion 51, its from the left and right two ends of each frame mounting portion 32C in the lateral direction outside It is continuous to extend；1st support 52, its end from the outside of the left and right directions of the 1st base portion 51 extends forward, supports with rotatable Mode is connecting the one end of the bolt 56 of lower frame 20 and supporting member 50；With the 2nd part 53, and its by welding etc. consolidate Due to the leading flank of the 1st base portion 51.2nd part 53 has：2nd base portion 54, it is fixed on the 1st base portion 51；With the 2nd support 55, its end from the inside of the left and right directions of the 2nd base portion 54 extends forward, the other end of bolt 56.

Directed section 31 is the bar-like member for guiding it to move up and down by plate sidepiece part 40, and is set extending up and down Put.More specifically, the left-right situs of each directed section 31 configuration, in upper end from the fixed part 32A's of framework mounting bracket 32 In the state of upper edge is protruded upward, its bottom is fixed on the trailing flank of fixed part 32A by welding etc..

Plate sidepiece part 40 has pair of right and left holding section 41 and plate mounting bracket 42, and the plate mounting bracket 42 is used for plate side Part 40 is arranged on backboard 60 (with reference to Figure 20).

Plate mounting bracket 42 is formed by making metal sheet metal bending, and is had：Fixed part 42A；A pair of connecting portion 42B, It posteriorly extends from the left and right two ends of fixed part 42A；With pair of right and left plate installation portion 42C, it is from the rear end of each connecting portion 42B In the lateral direction outside extends.

Holding section 41 is the part of tubular, and passes through welding with the state of left-right situs on the leading flank of fixed part 42A Deng fixation.Each holding section 41 engages respectively with frame side part 30 a, corresponding directed section 31, so that directed section 31 can slide up and down mobile state keeps the directed section 31.Accordingly, the guiding frame sidepiece part 30 of plate sidepiece part 40 is upper and lower It is mobile.The plate installation portion 42C of plate mounting bracket 42 is fixed on backboard 60 by bolt etc., accordingly fixes plate sidepiece part 40 On backboard 60.

As shown in figure 18, right-side seat S3 has the seat cushion S31 of an example as the 2nd seat cushion, leans on as the 2nd seat The back of the body an example backrest S32, headrest S33, as the 2nd armrest an example armrest S34 and armrest S35.Seat The seat cushion S11 that S31 is padded relative to center seat S1 is adjacent to, seat in the side contrary with left-side seat S2 with seat cushion S11 Backrest S32 relative to center seat S1 backrest S12, in the side contrary with left-side seat S2 and backrest S12 phases Neighbour's configuration.In addition, armrest S34 is arranged at the left side of the side as center seat S1 for being configured with backrest S32, armrest S35 is arranged at the right side of backrest S32.

Right-side seat S3 is identical with left-side seat S2, is also constituted (with reference to Figure 19) in tipping mode.In addition, armrest S34, S35 are identical with armrest S24, S25, can be relative to backrest S32, shown in the receipts dress state and Figure 19 shown in Figure 18 Use state between rotate.In the present embodiment, right-side seat S3 and left-side seat S2 are symmetrical and constitute, therefore, Omit specific description.In addition, in the present embodiment, backrest S22 can be made between initial position and lower position Mobile travel mechanism M can make backrest S32 in initial position and lower section equivalent to " the 1st backrest travel mechanism " The travel mechanism M moved between position is equivalent to " the 2nd backrest travel mechanism ".

As shown in figure 18, center seat S1 mainly has seat cushion S11, backrest S12 and headrest S13.Seat cushion S11 is on a left side Between the seat cushion S21 of side and the seat cushion S31 on right side, it is adjacent to by seat cushion S21, S31, seats of the backrest S12 in left side Between chair back S22 and the backrest S32 on right side, it is adjacent to by backrest S22, S32.

Seat cushion S11 has cushion frame (not shown), and the structure by the covering bolster in the cushion frame and epidermis Into.In addition, backrest S12 has backrest frame (not shown), and by covering buffering on the backrest frame Part C1 and epidermis C2 and constitute (with reference to Figure 22).In the present embodiment, center seat S1 with cannot relative to vehicle body movement Mode is fixed.

Backrest S12 has receptacle portion H1 of an example as the 1st armrest receptacle portion and receives dress as the 2nd armrest Receptacle portion H2 of one example in portion.

Receptacle portion H1 is the part of the armrest S24 for receiving dress in dress state is received, by the left part for being formed in backrest S12 The unlimited recess in front and left constitute.As shown in figure 22, receptacle portion H1 has opposite with the lower end of the armrest S24 for being received dress Downside forward surface G1 (the 1st downside forward surface).Before left-side seat S2 carries out tumbling action, backrest S22 is in During initial position, space S P1 (gap) of regulation is provided between the lower end of armrest S24 and downside forward surface G1.The space SP1 is that with backrest S22, from initial position, downwards position (with reference to Figure 19) is mobile for allowing armrest S24, and from figure The space that position shown in 22 is moved downwards.In the present embodiment, forward surface G1 in downside is with more then more downward forward side Formula, inclines to oblique front lower place.

Receptacle portion H2 is the part of the armrest S34 for receiving dress in dress state is received, by the right part for being formed in backrest S12 The unlimited recess in front and right constitute.Receptacle portion H2 has the downside opposite with the lower end of the armrest S34 for being received dress opposite Face G1 (the 2nd downside forward surface).In the present embodiment, receptacle portion H2 is substantially symmetrical with receptacle portion H1, therefore, it is right to omit The explanation of its concrete structure.

As shown in figure 18, left side S4 is the backrest that vehicle seat used S is constituted together with backrest S12, S22, S32 etc. Partial part, is adjacent in the side contrary with center seat S1 relative to backrest S22 with backrest S22.It is left Sidepiece S4 has framework (not shown), and is constituted by covering bolster and epidermis on the frame.In the present embodiment, Left side S4 is fixed in the way of it cannot move relative to vehicle body.Left side S4 has as the 3rd armrest receptacle portion Receptacle portion H3 and passage 80 (with reference to Figure 23) of example.

Receptacle portion H3 is the part of the armrest S25 for receiving dress in dress state is received, by the right part for being formed in left side S4 The recess that front and right are opened wide.As shown in figure 22, receptacle portion H3 has the downside opposite with the lower end of the armrest S25 for being received dress Forward surface G1 (the 3rd downside forward surface).In the present embodiment, receptacle portion H3 is symmetrical with receptacle portion H1, therefore, it is right to omit Its specific description.

As shown in figure 23, passage 80 is tubular part, in order to be cooled in the middle configuration such as electric automobile and hybrid vehicle In the battery 66 at the rear of backboard 60, passage 80 supplies the air of cooling into housing 67 of the receipts equipped with battery 66 from compartment Give.Passage 80 is configured to：The front and back of left side S4 is connected in the S4 of left side.

More specifically, passage 80 has：Transverse tube portion 81, it extends in left-right direction；Front tube portion 82, it is from transverse tube portion 81 Left and right directions on the outside of end extend forwards；With rear pipe portion 83, its end from the inside of the left and right directions in transverse tube portion 81 to Rear extends.Also, passage 80 is configured to：The inside in the compartment of the opening of the front side of front tube portion 82 and the front side of left side S4 Connection, the opening of the rear side of rear pipe portion 83 is connected with the inside of housing 67.In addition, the epidermis for covering left side S4 has breathing freely Property.

In the present embodiment, receptacle portion H3 of dress armrest S25 is received in the longitudinal direction, before being arranged on transverse tube portion 81 Side, and on left and right directions (horizontal), be arranged between backrest S22 and the front tube portion 82 of passage 80.Hereby it is possible to have Effect ground is using the space in the S4 of left side.In addition, when armrest S25 is installed in receptacle portion H3, can be born by armrest S25 From the load in front, therefore, it is possible to suppress the imposed load of transverse tube portion 81 to passage 80.Hereby it is possible in protecting well Empty passage 80 is protected from loading effect.

As shown in figure 18, right side S5 is together with backrest S12, S22, S32 and left side S4, to constitute automobile seat The part of the back part of chair S, relative to backrest S32 in the side contrary with center seat S1 and backrest S32 phases Neighbour's configuration.In the present embodiment, right side S5 is symmetrical with left side S4, and in the way of cannot be relative to vehicle body movement Fixed.

Right side S5 has receptacle portion H4.Receptacle portion H4 is the part of the armrest S35 for receiving dress in dress state is received, by being formed In right side, the unlimited recess in the front and left of the left part of S5 is constituted.As shown in figure 22, receptacle portion H4 has and is received dress Armrest S35 the opposite downside forward surface G1 in lower end.In the present embodiment, the structure of receptacle portion H4 and receptacle portion H1 phase Together, therefore, omit to its specific description.

In the present embodiment, vehicle seat used S also has cap assembly 91.

Cap assembly 91 is such a part：Observe from front, under covering armrest S24, S34, S25, S35 for receiving dress state Space S P1 between end and the downside forward surface G1 of corresponding receptacle portion H1～H4.Cap assembly 91 is by by leather or fabric Constitute etc. the cloth-like part of the substantially rectangular shape of composition, to be fixed on armrest S24, S34, S25, S35 in dress state is received The state of the front part of bottom is arranging.By with such cap assembly 91 come concealed space SP1, therefore, be in The lower section for receiving armrest S24, S25, S34, S35 of dress state has in the structure of space S P1, can improve outward appearance.

Then, for vehicle seat used S tumble action and vehicle seat used S tumble action when armrest S24 movement Illustrate.In addition, here, used as representative example, the movement to left-side seat S2 and armrest S24 is said Bright, right-side seat S3 and armrest S25, S34, S35 are also carried out identical movement.

When actuator AC (with reference to Figure 20) from the state shown in Figure 24 (a), is driven by operation of seated person etc., seat is made When pad framework F1 (seat cushion S21) is moved forward, pulled by cushion frame F1, the lower end of the lower frame 20 of backrest frame F2 Portion moves forward.Accordingly, the one side of lower frame 20 is rotated forward centered on axle A2 and is moved downwards on one side, is pulled down accordingly Draw upper frame 10, upper frame 10 is moved down by travel mechanism M relative to backboard 60.As a result, such as Figure 24 (b) institutes Show, backrest S22 becomes the state rearward toppled over relative to seat cushion S21.Now, as backrest S22 is from Figure 24 (a) Lower position movement shown in shown from initial position to Figure 24 (b), lower frame 20 is rotated forward on one side centered on axle A2 Move downwards on one side, accordingly, armrest S24 is moved as Figure 22, Figure 25 (a) and Figure 25 (b) are shown successively to oblique front lower place It is dynamic.

On the other hand, when from the state shown in Figure 24 (b), driving actuator AC, when cushion frame F1 is rearward moved, Pushed by cushion frame F1, the bottom of the lower frame 20 of backrest frame F2 is rearward moved.Accordingly, lower frame 20 While rearward rotated centered on axle A2 being moved upward on one side, thus upper frame 10 is pushed up, upper frame 10 is logical Cross travel mechanism M to move up relative to backboard 60.As a result, as shown in Figure 24 (a), backrest S22 is relative to seat cushion S21 Become raised state.Now, with the initial bit shown in backrest S22 from the lower position to Figure 24 (a) shown in Figure 24 (b) Put movement, the one side of lower frame 20 is rotated backward while be moved upward centered on axle A2, accordingly, armrest S24 such as Figure 25 B (), Figure 25 (a) and Figure 22 are shown successively as, to the movement of oblique back upper place.

Present embodiment from the description above, as shown in figure 22, in the lower end of the armrest S24 for receiving dress state and receptacle portion Space S P1 is provided between the downside forward surface G1 of H1, therefore.Such as Figure 25 (a), shown in (b), as backrest S22 is from first The position movement downwards of beginning position, even if armrest S24 is moved to oblique front lower place, armrest S24 also will not be touched with downside forward surface G1 Hit.Hereby it is possible to when suppressing backrest S22 downwards position being moved, armrest S24 and the backrest of receptacle portion H1 is formed with S12 interferences.

In addition, in the present embodiment, as backrest S22 is from initial position position movement downwards, with along to The mode of the motion track of the lower end of the armrest S24 of oblique front lower place movement, downside forward surface G1 is inclined to oblique front lower place, therefore, Downside forward surface G1 can be suppressed to interference with armrest S24, while space S P1 can be reduced.Accordingly, in armrest S24 and downside Between forward surface G1 in the vehicle seat used S with space S P1, outward appearance can be improved.

In addition, in the present embodiment, as shown in figure 18, backrest S22, the S32 that can be moved up and down with cannot phase Both sides for the backrest S12 of vehicle body movement are disposed adjacent, and receptacle portion H2 has and receptacle portion H1 identical structure, because This, armrest S34 when can suppress backrest S32 downwards position being moved and is formed with the backrest S12 of receptacle portion H2 Interference.

In addition, in the present embodiment, in the both sides of the backrest S22 that can be moved up and down, it is impossible to relative to vehicle body Mobile backrest S12 and left side S4 is disposed adjacent, but because receptacle portion H3 has and receptacle portion H1 identical structure, because This, armrest S25 when can the suppress backrest S22 position movements downwards and left side S4 for being formed with receptacle portion H3 is concerned with Relate to.Right side S5 sides are also identical.

The embodiment ＞ of ＜ the 4th

As shown in figure 26, the vehicle seat involved by the 4th embodiment is the vehicle used in the pillion of automobile Seat S is used, it is main with left-side seat S2, right-side seat S6 of another example as the 1st adjacent component, left side S4 and the right side Sidepiece S5.

Right-side seat S6 have center seat S1 and right-side seat S3 of the 3rd embodiment are constituted as a seat Structure.Specifically, right-side seat S6 mainly have as the 4th seat cushion an example seat cushion S61, as the 4th seat Backrest S62, headrest S13, S33 of one example of backrest and armrest S34, S35.Seat cushion S61 the right side of seat cushion S21 with Seat cushion S21 is adjacent to, and backrest S62 is adjacent on the right side of backrest S22 with backrest S22.

Right-side seat S6 has and left-side seat S2 same structure, that is, be configured to：When seat cushion S61 is moved forward When, backrest S62 rearward topples over (with reference to Figure 24) relative to seat cushion S61.In addition, in the present embodiment, seat can be made The travel mechanism M that chair back S62 is moved between initial position and lower position is equivalent to " the 4th backrest travel mechanism ".

On backrest S62, receptacle portion H5 and receptacle portion of another example as the 1st armrest receptacle portion are provided with H6。

As shown in figure 27, receptacle portion H5 is the part of the armrest S24 for receiving dress in dress state is received, by being formed in backrest The unlimited recess in before and after the left part of S62 and left is constituted.Receptacle portion H5 has opposite with the lower end of the armrest S24 for being received dress Downside forward surface G1 and the opposite upside forward surface G2 (the 1st upside forward surface) in upper end with the armrest S24 for being received dress. Left-side seat S2 and right-side seat S6 carry out tumbling before action, i.e., when backrest S22, S62 is in initial position, in elbow Space S P2 (gap) of regulation is provided between upper end and upside forward surface G2 by S24.Space S P2 is in seat Backrest S22 is in the state of initial position, it is allowed to which backrest S62 is from the space of initial position position movement downwards. In present embodiment, upside forward surface G2 becomes the face almost parallel with the upper end of the armrest S24 for being received dress.

In the present embodiment, vehicle seat used S is in addition to cap assembly 91, also with cap assembly 92.Cap assembly 92 is Such a part：From forward observation, the upside forward surface for being in the upper end with receptacle portion H1 of the armrest S24 for receiving dress state is covered Space S P2 between G2.Cap assembly 92 by constituting with the identical part of cap assembly 91 for covering space S P1, and to be fixed on seat The state of the part above the leading flank of chair back S62, receptacle portion H1 is arranging.By with such cap assembly 92, energy Enough concealed space SP2, therefore, in the top of the armrest S24 of receipts dress state has the structure of space S P2, outward appearance can be improved.

Figure 26 is returned to, receptacle portion H6 is the part of the armrest S34 for receiving dress in dress state is received, by being formed in receptacle portion H5 The unlimited recess in front on right side constitute.In the present embodiment, receptacle portion H6 together with backrest S62, armrest S34 Move between initial position and lower position, therefore, in the lower end of the armrest S34 for being received dress and the receptacle portion opposite with the lower end Between the downside of H6, gap big as space S P1 will not be formed.Equally, by receive dress armrest S34 upper end and with Between the upper surface of opposite receptacle portion H6 in the upper end, gap big as space S P2 will not be also formed.

When from the state shown in Figure 26 only make right-side seat S6 carry out tumbling action when, backrest S62 is from shown in Figure 27 Initial position, through the position of Figure 28 (a), move to the lower position shown in Figure 28 (b), the upper lateral part of backrest S62 Divide the slide downward movement by travel mechanism M (with reference to Figure 20).Now, in the present embodiment, in receipts dress state Space S P2 is provided between the upper end of armrest S24 and the upside forward surface G2 of receptacle portion H5, therefore, it is possible to suppress backrest S62 when downwards position is moved, with armrest S24 interference, and wherein armrest S24 relative to seat cannot lean on by backrest S62 The mode of back of the body S62 movements is arranged on backrest S22.

On the other hand, with reference to Figure 25 (a), (b) illustrating, when only entering left-side seat S2 from the state shown in Figure 26 Row tumble action when, backrest S22 is moved from the lower position shown in initial position to Figure 25 (b), and makes armrest S24 to oblique Move front lower place.Now, in the present embodiment, as shown in figure 27, in the lower end of the armrest S24 in dress state is received and receipts dress Be provided with space S P1 between the downside forward surface G1 of portion H5, therefore, it is possible to suppress armrest S24 to oblique front lower place move when, armrest S24 is interferenceed with backrest S62, wherein, backrest S62 relative to the irremovable modes of backrest S22 arranging.

The embodiment ＞ of ＜ the 5th

As shown in figure 29, the vehicle seat involved by the 5th embodiment is the vehicle used in the pillion of automobile Use seat S, it is same with the vehicle seat used S-phase of the 3rd embodiment, mainly have left-side seat S2, left side S4, it is (not shown) in Centre seat, right-side seat and right side.

In the left and right sides of vehicle seat used S, the car door D10 that opening and closing Vehicular side body comes for boarding is provided with.In car door Auxiliary armrest R26 is provided with the door lining D11 of D10, auxiliary armrest R26 is formed as, and in the lateral direction inner side is prominent, and edge Fore-and-aft direction extends.

Armrest S25 is arranged to：When it is rollover conditions to make left-side seat S2, as backrest S22 is from initial position Position movement downwards, armrest S25 to oblique front lower place is moved.In the present embodiment, armrest S25 is arranged to：When making seat Backrest S22 downwards position movement, and from receive dress state turn to use state when, armrest S25 be adjacent to auxiliary elbow By the side of R26.Also, armrest S25 is disposed of：In the state of making backrest S22 position movements downwards carry out use, The position of upper surface 251 and the aligned in position (substantially flush) of the upper surface 261 of auxiliary armrest R26, also, rearward end 252 The aligned in position of the rearward end 262 of position and auxiliary armrest R26.

It is rollover conditions by making left-side seat S2 according to such structure, and makes armrest S25 for use state, makes Armrest S25 and auxiliary armrest R26 are constituted as the armrest of one, are used therefore, it is possible to armrest is widened.Especially at this In embodiment, due to armrest S25 rearward end 252 position and auxiliary armrest R26 rearward end 262 aligned in position, because This, can widen the rear portion of armrest, the i.e. part of placement ancon to use.

In addition, in the present embodiment, auxiliary armrest R26 is arranged at car door D10, but is not limited to this, for example, aids in elbow By vehicle body can also be arranged at.

The embodiment ＞ of ＜ the 6th

As shown in figure 1, the vehicle seat involved by the 6th embodiment is the vehicle used in the pillion of automobile using Seat S, and with left-side seat SL on the left of being configured in right-side seat SR on right side and being configured in.Below, to the application present invention The structure of left-side seat SL of mounting structure illustrate.

Left-side seat SL has seat cushion S10, backrest S20 and headrest S30.Detailed action is illustrated later, Left-side seat SL is configured to：When seat cushion S10 is moved forward, backrest S20 rearward topples over (composition relative to seat cushion S10 To tumble) (with reference to Figure 35 (b)).

As shown in figure 30, seat cushion S10 has cushion frame F1 of the framework for constituting seat cushion S10, and by cushion frame The bolster being made up of polyurethane foam etc. and the epidermis that is made up of leather or fabric etc. are covered on frame F1 and is constituted.Cushion frame Frame F1 is configured to：Base plate so that vehicle body can be arranged in the way of movable relative to the base plate of vehicle body (vehicles bodies) On, when carry out tumbling action when, by operation of seated person etc. drive actuator AC, accordingly, relative to vehicle body forward or backward It is mobile.

Backrest S20 has the backrest frame F2 of the framework for constituting backrest S20, and by leaning in seat The bolster being made up of polyurethane foam etc. and the epidermis that is made up of leather or fabric etc. are covered on back frame frame F2 and is constituted.Seat Back frame F2 has：Upper frame 10, it constitutes the upper portion of backrest frame F2；With lower frame 20, its structure Into the lower portion of backrest frame F2.

Upper frame 10 mainly has：Used as the vertical frame section 11,11 of the top body side frame of left and right, its left and right separates matches somebody with somebody Put；With the crossing frame portion 12 as top connection framework, the upper end of the vertical frame section 11,11 of its connection is each other.Vertical frame section 11 It is made up of metal pipe, this is metal tubular to become：Lower end is arrived from its upper end, is extended straight along roughly vertical direction. In other words, indulge frame section 11 to be configured to：Do not have with recessed to the inner or outer side on the left and right directions of backrest frame F2 The part that the mode of (avoiding) bends.Crossing frame portion 12 is made up of metal pipe, by welding etc. by left and right two ends and vertical frame The upper end connection in frame portion 11.In crossing frame portion 12, the supporting support 13 for installing headrest S30 is fixed with.

Lower frame 20 is mainly made up of the metal pipe for bending to substantially U-shaped, and with it is forming as one, The bottom body side frame 21,21 of left and right and lower connecting frame 22, wherein, the bottom body side frame 21 of left and right, 21 or so configured separates, The bottom of the connection bottom body side frame 21,21 of lower connecting frame 22 is each other.As shown in figure 31, the 2nd connecting bracket 640 is by weldering The upper end for being fixed on bottom body side frame 21 such as connect.The sheet metal component that 2nd connecting bracket 640 is shaped by pressure processing is constituted, and The both ends of its fore-and-aft direction are formed as, in the lateral direction interior lateral bend, when section view is observed in the shape of substantially U-shaped. 2nd connecting bracket 640 in the state of its bottom keeps the upper end of bottom body side frame 21 from the outside of left and right directions with bottom Body side frame 21 connects, and its upper end is connected with connecting bracket described later 630.

Upper frame 10 and lower frame 20 are connected with each other by connecting bracket 630.Connecting bracket 630 is by pressure processing And the sheet metal component for shaping is constituted, and have：The main part 631 of tabular, it is configured between vertical frame section 11,11；With left and right Frame extensions 632, it extends forwards from the left and right two ends of main part 631.By welding etc. by the lower end of vertical frame section 11 Portion is fixed on the left and right directions lateral surface of the frame extensions 632 of connecting bracket 630, and accordingly, upper frame 10 is propped up with being connected Frame 630 connects.On the other hand, the 2nd connecting bracket 640 of upper end of bottom body side frame 21 is fixed on by bolt 38 and nut 39 fastening is connected with the left and right directions medial surface of frame extensions 632, and the 2nd connecting bracket 640 can be with along right and left Rotate to centered on the axle A2 for extending, accordingly, lower frame 20 is supported on frame extensions 632, and the lower frame 20 Can be rotated centered on axle A2.Accordingly, the side in upper frame 10 and lower frame 20 can be relative to the opposing party with axle Rotate centered on A2, backrest S20 is in the way of the part of the part of upside and downside is in substantially V-like shape in middle warpage (with reference to Figure 35 (b)).

In addition, as shown in figure 30, the lower connecting frame 22 of lower frame 20 is by backrest mounting bracket 23 and seat The rearward end of pad framework F1 connects, and lower frame 20 can be rotated centered on the axle A1 for extending in left-right direction.Accordingly, under Portion's framework 20 can in front and back be rotated relative to cushion frame F1 centered on axle A1.

The backrest S20 for so constituting by the travel mechanism 100 shown in Figure 32, with can be relative to backboard about 60 Mobile mode, on the back side with backrest S20 in opposite directions backboard 60 (with reference to Fig. 1) of configuration.

Travel mechanism 100 is the structure that backrest frame F2 can be made to move up and down relative to backboard 60, and it mainly has There are guide post 101, guide cylinder 102, plate-shaped carrier 103 and reinforcing plate 104.

Guide post 101 is the bar-like member being made up of metal, and guide cylinder 102 is the cartridge engaged with guide post 101. Guide post 101 and guide cylinder 102 are with the engaging of slidable state.Guide post 101 is configured to, and the direction that rod is extended is towards upper Lower direction, and the state of left-right situs is provided with 2.In addition, guide cylinder 102 is corresponding with each guide post 101 and it is provided with 2 It is individual.

Support 103 is to be fixed on the part of backboard 60 by the engaging of hook portion described later 170 and hook portion holding section 71, and With the 1st support 150 and the 2nd support 160.

1st support 150 is bent into the sheet metal component of L-shaped shape and constitutes when being observed by side-looking, and mainly has the 1st installation portion 151 and bar fixed part 152, the bar fixed part 152 extends forwards from the lower end of the 1st installation portion 151.In the 1st installation portion 151 On, it is provided with 3 through holes (not shown) for passing through for bolt 108.Also, on the leading flank of the 1st installation portion 151, lead to Cross and be welded with 3 nuts 109 corresponding with each through hole.2 are formed with bar fixed part 152 under guide post 101 The interspersed through hole 152A in end, 2 through hole 152A are provided spaced apart in the lateral direction.In bottom insertion through hole 152A In the state of, guide post 101 is fixed on bar fixed part 152 by welding etc..

The sheet metal component that 2nd support 160 is shaped by pressure processing is constituted, and is had：2nd installation portion 161；Connecting portion 162, It extends forwards from the upper end of the 2nd installation portion 161；Reinforcing plate fixed part 163, it prolongs upward from the front end of connecting portion 162 Stretch.3 through holes (not shown) for passing through for bolt 108 are provided with the 2nd installation portion 161.In addition, as shown in figure 33, On the 2nd installation portion 161, its back side is provided with hook portion 170.In addition, in fig. 33, (the backrest frame of travel mechanism 100 F2) illustrated with the state observed from rear side, backboard 60 from front side as the state of part thereof of left part to illustrate.

Hook portion 170 is arranged to, and rearward projects from the back side of the 2nd installation portion 161 and the reclinate shape of top ends Shape, is each provided with a hook portion 170 near the corner at the back side of the 2nd installation portion 161.In other words, respectively in the 2nd support 160 The back side upper and lower end, be each provided with detached 2 hook portions 170 in left and right.Further in other words, respectively at the 2nd The left part and right part of frame 160, is each provided with upper and lower detached 2 hook portions 170.Such hook portion 170 for example can pass through The hook portion 170 that welding etc. will be independent of the 2nd support 160 and be formed is fixed on the 2nd support 160 to arrange, and hook portion 170 can also It is wholely set with the 2nd support 160 by the part incision and bending of the 2nd support 160 for making to be made up of sheet metal component.

Figure 32 is returned to, the 1st support 150 and the 2nd support 160 are being located at front side, the 2nd installation portion with the 1st installation portion 151 161 modes for being located at rear side, in the state of overlapping the 1st installation portion 151 and the 2nd installation portion 161, make bolt 108 from rear side Fasten with the nut 109 being fixed on the 1st installation portion 151 through through hole (not shown) and be integrally formed, thus constitute support 103。

Sheet metal component in L-shaped shape bending when reinforcing plate 104 is observed by side-looking is constituted, and with by fixed part 141 and plus Strong portion 142, the rib 142 by the lower end of fixed part 141 from being extended forwards.Reinforcing plate 104 is configured in 2 guide posts Between 101, it is fixed on support 103 by welding etc. by fixed part 141, specifically, is fixed on reinforcing plate fixed part 163 Leading flank on.Reinforcing plate 104 is arranged to：When the upper end right to the left of the guide post 101 to the imposed load of guide post 101 Inwardly during lateral bend etc., the upper end of guide post 101 abuts with the side of rib 142.

In the present embodiment, as shown in figure 33, such travel mechanism 100 is installed in the seat of backrest frame F2 On chair frame plate 650, a part for left-side seat SL is arranged to accordingly.Seat frame frame plate 650 is shaped by pressure processing Sheet metal component is constituted, and in the top of connecting bracket 630, is configured in the way of being set up on vertical frame section 11,11.Mainly passing through will Left and right two ends are fixed on vertical frame section 11 by welding etc., and seat frame frame plate 650 is connected with backrest frame F2.

Here, illustrating to the installation of backrest frame F2 to travel mechanism 100.

As shown in figure 34, when travel mechanism 100 is installed on backrest frame F2, first, 2 are oriented to by welding etc. 102 (only illustrating a side) of cylinder are fixed on the back side of seat frame frame plate 650 with the state of left-right situs.Then, will be in solid Guide post 101 in the state of being scheduled on the 1st support 150 is through the guide cylinder 102 for being fixed on seat frame frame plate 650.Also, The support 160 of 1st support, 150 over-assemble the 2nd, wherein, reinforcing plate 104 is installed on the 2nd support 160, by 3 bolts 108 with The nut 109 for being fixed on the 1st support 150 is fastened, and thus couples together on the 1st support 150 and the 2nd support 160.Accordingly, it is mobile Mechanism 100 is installed on backrest frame F2.

In the state of being fixed with the 1st support 150 of guide post 101 and the 2nd support 160 be connected, guide post 101 it is upper End abuts with the leading flank of the reinforcing plate fixed part 163 of the 2nd support 160.Hereby it is possible to be propped up from rear by support 103 Hold the upper end of guide post 101, also, cylinder 102 is directed to by reinforcing plate fixed part 163 and block and guide post can be suppressed 101 come off together with support 103 from guide cylinder 102.In addition, in the state that travel mechanism 100 is installed on backrest frame F2 Under, the front end of the rib 142 of reinforcing plate 104 abuts with the back side of seat frame frame plate 650.

As shown in figs. 33 and 34, the sheet metal component that backboard 60 is shaped by pressure processing is constituted, (right with vehicle seat used S Side seat SR and left-side seat SL) rear portion configure in opposite directions (referring concurrently to Fig. 1).In the present embodiment, backboard 60 is fixed on Vehicle body, constitutes a part for vehicle body.On backboard 60, pre-and post perforative opening 63C is formed with, seat mounting bracket 70 is with entrance The state of opening 63C is configured in opening 63C.

The sheet metal component that seat mounting bracket 70 is shaped by pressure processing is constituted, and is fastened on by bolt (not shown) etc. Around opening 63C, accordingly, seat mounting bracket 70 is fixed on backboard 60, is installed in the seat for being installed on backboard 60 and is propped up Hook portion holding section 71 is provided with the leading flank of frame 70.

Hook portion holding section 71 is the part that hook portion 170 is engaged, and is made up of metal bar-like member.In more detail and Speech, hook portion holding section 71 is to make metal bar-like member bend to substantially U-shaped, and its two ends is fixed on by welding etc. On the leading flank of seat mounting bracket 70.Accordingly, hook portion holding section 71 is fixed on backboard 60 by seat mounting bracket 70. Hook portion holding section 71 and 2 hook portions 170 for being configured in upside and 2 hook portions 170 on the downside of being configured in are corresponding, and are set to Under detached 2.

Then, left-side seat SL is simply illustrated to the installation of vehicle body.

When left-side seat SL is installed on into vehicle body, first, backrest S20 is installed on into backboard 60.Specifically, such as Figure 33 It is shown, the height and position for making the travel mechanism 100 for being arranged at backrest S20 and the seat mounting bracket 70 for being arranged at backboard 60 Height and position alignment, while 2 hook portions 170 of upside are engaged with the hook portion holding section 71 of upside, by 2 hook portions of downside 170 engage with the hook portion holding section 71 of downside.Accordingly, backrest S20 is arranged on backboard 60.Then, such as Figure 35 (a) institutes Show, seat cushion S10 is arranged on the base plate (ellipsis) of vehicle body.Also, headrest S30 is arranged on backrest S20, according to This, left-side seat SL is arranged on vehicle body.

Then, the action of tumbling for left-side seat SL is illustrated.

When actuator AC (with reference to Figure 30) from the state shown in Figure 35 (a), is driven by operation of seated person etc., cushion frame is made When frame F1 (seat cushion S10) is moved forward, shown in such as Figure 35 (b), pulled by cushion frame F1, the lower box of backrest frame F2 The bottom of frame 20 moves forward.Accordingly, the one side of lower frame 20 is rotated forward centered on axle A2 and is moved downwards on one side, according to This and pull upper frame 10 downwards, upper frame 10 by travel mechanism 100 relative to the slide downward of backboard 60 move.Its knot Really, backrest S20 becomes the state (rollover conditions) rearward toppled over relative to seat cushion S10.

On the other hand, when from rollover conditions, driving actuator AC, when cushion frame F1 is rearward moved, such as Figure 35 (a) It is shown, pushed by cushion frame F1, the bottom of the lower frame 20 of backrest frame F2 is rearward moved.Accordingly, bottom Framework 20 is rearward rotated centered on axle A2, and is moved upward, and thus pushes up upper frame 10, upper frame 10 Moved relative to the upward sliding of backboard 60 by travel mechanism 100.As a result, backrest S20 becomes vertical relative to seat cushion S10 The state of rising.

Present embodiment from the description above, will be arranged at the travel mechanism 100 as a part for left-side seat SL Hook portion 170 engage with hook portion holding section 71, wherein, hook portion holding section 71 is arranged on backboard 60 by seat mounting bracket 70 On, hereby it is possible to be simply assembled backboard 60 and travel mechanism 100 (left-side seat SL).

In addition, travel mechanism 100 has is fixed on the reinforcing plate 104 of support 103, therefore, it is possible to by reinforcing plate 104 come The plate-shaped carrier 103 that suppression is fixed on backboard 60 bends.Accordingly, it is suppressed that the deformation of travel mechanism 100, guide post is made 101 and guide cylinder 102 can slide well, therefore, it is possible to make backrest S20 move up and down well.

In addition, the support that the bottom of vertical frame section 11 is fixed on the left and right of the connecting bracket 630 as a part prolongs In extending portion 632, and the upper end of bottom body side frame 21 is rotatably supported centered on axle A2, therefore, and make vertical framework Structure of the bottom in portion with the upper end of bottom body side frame to connect in the way of left and right can independently rotate compares, and seat is leaned on Back frame frame F2 is difficult to deform.Hereby it is possible to backrest S20 is made in middle warpage well, therefore, it is possible to lean on seat Back of the body S20 is moved up and down well.

In addition, vertical frame section 11 is made up of the pipe for extending straight up and down, therefore, with vertical frame section in left-right direction to inner side Or the structure of external recess bending compares, and can simplify the structure of backrest frame F2.Accordingly, for example, system can be reduced Make man-hour during backrest frame F2, or reduces cost.

In addition, hook portion 170 is provided spaced apart 2 in left and right, in addition, in interval setting apart from top to bottom 2, therefore, with The structure for only arranging 1 hook portion compares, and travel mechanism 100 can be arranged on backboard 60 with stable state.Accordingly, energy It is enough better to move up and down backrest S20.Especially in the present embodiment, 4 hook portions 170 be spaced apart interval and The position at the angle of quadrangle is configured in, therefore, when travel mechanism 100 is installed on into backboard 60, travel mechanism 100 can be suppressed Rock relative to backboard 60.Hereby it is possible to travel mechanism 100 is arranged on backboard 60 with more stable state, therefore, it is possible to Better move up and down backrest S20.

More than, embodiment is illustrated, but the present invention is not limited to above-mentioned embodiment, without departing from invention In the range of purport, specific structure suitably can be changed as described below.

In the 1st embodiment, backboard 60 is arranged to：Make the upper end ST of backrest S20 upper with recess 63 Edge part 63A aligns, and accordingly, makes frame side part 30 and plate sidepiece part 40 be aligned in the position that can be engaged, but not It is limited to this.For example, as shown in Figure 36 (a), backboard 60 can also be configured to mark 65, when backrest S20 is installed on During backboard 60, the upper end ST for making backrest S20 aligns with mark 65, accordingly, by frame side part 30 and plate sidepiece part 40 pairs Standard is in the position that can be engaged.More specifically, mark 65 is formed in the top of recess 63, and is arranged to：Upper and lower On direction, the interval D 3 from the mark 65 to the lower end of the holding section 41 of plate sidepiece part 40 is less than from the upper end of backrest S20 Interval Ds 4 of the ST to the upper end of the directed section 31 of frame side part 30.

According to said structure, the height and position of the upper end ST of backrest S20 and the aligned in position of mark 65 are made, accordingly, In the vertical direction, the upper end of directed section 31 can be configured in the lower section of the lower end of holding section 41.Accordingly, such as Figure 36 (b) It is shown, when in the space of the lower section of the plate sidepiece part 40 that frame side part 30 is housed in recess 63, and from plate sidepiece part When 40 lower section engages frame side part 30, it is easy to engage frame side part 30 with plate sidepiece part 40, therefore, it is possible to improve Workability backrest S20 being installed on during backboard 60.In addition, in Figure 36, as an example of mark, showing phase The mark 65 of the shape recessed for seat forward surface 61, but this is not limited to, for example, mark can be opposite relative to seat The shape that face projects.In addition, mark can be formed by setting-out etc. on seat forward surface, it is also possible on seat forward surface Sticking sign and formed.

In the 1st embodiment, as shown in fig. 6, directed section 31 is configured to, always observe from right and left, it is and vertical Frame section 11 is almost parallel, but is not limited to this.For example, as shown in figure 37, directed section 31 is configured to：From left and right directions Observation, by more upwards then further away from vertical frame section 11 in the way of, incline to oblique back upper place relative to vertical frame section 11.Such In structure, compared with the structure parallel with directed section and vertical frame section, exist directed section 31 relative to vertical frame section 11 to The big situation of the prominent quantitative change at rear.But, travel mechanism M with into the state of recess 63 configuration, therefore, even if such In structure, it is also possible to which suppression forms dead band between the seat forward surface 61 and backboard 60 of backrest S20, to guarantee that seat is leaned on The front space of back of the body S20.

In the 1st embodiment, directed section 31 and holding section 41 are configured to：Linearly prolong from left and right directions observation Stretch, but be not limited to this.For example, as shown in figure 38, directed section 31 and holding section 41 can also be configured to：From right and left always Observation, its front side is bent in recessed mode.According to such structure, can adjust directed section 31 slide along holding section 41 and Angle of when upper frame 10 the is moved up and down, upper frame 10 relative to backboard 60.Hereby it is possible to adjust backrest S20 Upper portion angle of inclination, therefore, when backrest S20 is fallen the posture of seated person can be made more comfortable.

In the 1st embodiment, engaging guide portion 64 is in the position of the lower section of the holding section 41 of plate sidepiece part 40, shape Become the recessed attitude of channel-shaped of the bottom for being arranged on recess 63, but be not limited to this.Illustrate for example, referring to Fig. 4, engaging is drawn The portion of leading can also be formed as a pair of convex portions, a pair of convex portions in the position of the lower section of holding section 41, from below observing to clip The mode in the hole of holding section 41, is provided projectingly from the bottom of recess 63.According to such structure, being drawn for frame side part 30 is made The upper end for leading portion 31 is fastened between a pair of convex portions, moves up backrest S20 (frame side part 30), hereby it is possible to Directed section 31 is guided to the hole of holding section 41.

In addition, as shown in Figure 39 (a), engaging guide portion 64 can also be configured to guide recess 64A and guide protrusion 64B, guide recess 64A is used to introduce the directed section 31 of frame side part 30 to the engaging guide portion 64, guide protrusion 64B With guide surface, the guide surface continuously extends from the bottom surface of guide recess 64A, and directed section 31 is drawn to the hole of holding section 41 Lead.In addition, as shown in Figure 39 (b), engaging the guide surface of the guiding of guide portion 64 directed section 31 can also be formed as inclined plane shape, should Inclined plane shape is extended by the hole to holding section 41 towards in the way of oblique back upper place.

In addition, in the 1st embodiment, being configured to：Engaging guide portion 64 is arranged in the recess 63 of backboard 60, directly Connect and guide the directed section 31 of frame side part 30 to holding section 41, but be not limited to this.For example, engaging guide portion can also It is configured to：Be formed as being arranged at ribbed convex portion outside, extending up and down of recess, move down on direct guiding upper frame It is dynamic, accordingly, frame side part is guided to holding section indirectly.

In the 1st embodiment, it is configured to：Supporting member 50 pivotally supports lower frame 20, frame Frame sidepiece part 30 is connected with upper frame 10, but is not limited to this.For example, it is also possible to be configured to：Supporting member is with rotatable Mode supports upper frame, and frame side part is connected with lower frame.

In the 1st embodiment, the state of backboard 60 is installed on, (seated person is sitting in left side seat to backrest S20 State before chair SL) under, the position contacted with backboard 60 is configured in, but it is not limited to this.For example, it is also possible to configure with Lower such position, in the state of backboard is installed on, has a little gap between backrest and backboard, and using seat When seated person on the seat leans on backrest and applies to lean on load, backrest is contacted with backboard.

In the 1st embodiment, it is configured to：Frame side part 30 can be in the recess 63 of backboard 60, from below Engage with plate sidepiece part 40, but be not limited to this.For example, frame side part can also be configured to：In the recess of backboard, from upper Side engages with plate sidepiece part.

In the 1st embodiment and the 6th embodiment, vehicle seat used S is configured to left-side seat SL can tumble, but It is not limited to this.For example, the vehicle seat used right-side seat that can also be configured to can tumble, it is also possible to be configured to left-side seat and The both sides of right-side seat are able to tumble.In addition, vehicle seat used can also be left-side seat SL and right-side seat SR of Fig. 1 It is integrally formed the structure of (1 seat), it is also possible to be the knot for being divided into 3 parts being made up of the seat of central seat and left and right Structure.

In the 2nd embodiment, directed section 31 engages with supporting member 330, but is not limited to this.For example, Can be as shown in figure 40, the part that directed section 31 has extension F22 with one is engaged.More specifically, shown in Figure 40 Variation in, the part 1 111 of upper extension 110 is fixed on into the carrier unit 301 of upper frame 10 by being configured in The above-mentioned mounting bracket 310 of front side is constituted with the mounting bracket 320 for being configured in rear side.Also, mounting bracket 320 is except above-mentioned Framework holding section 311 and a pair of stators 312 outside, also have：Fixed part 321, it is observed from front and is configured in a left side Between right vertical frame section 11；Right connecting portion 322, it extends forward from the right-hand member of fixed part 321, and by welding etc. the right side is fixed on On the vertical frame section 11 of side；With left connecting portion 323, it extends forward from the left end of fixed part 321, and with left and right directions inner side The integrally connected of stator 312, part 1 111 is fixed on by welding etc. for the end of stator 312 on the outside of left and right directions Portion, accordingly being integrally formed upper extension 110.The left-right situs configuration of directed section 31, in bottom under fixed part 321 In the state of edge part is extended downwardly from, upper end is fixed on the trailing flank of fixed part 321 by welding etc., accordingly, with one The mounting bracket 320 that body has upper extension 110 is engaged.According to such structure, directed section 31 is in a movable manner Kept by the holding section 41 of plate sidepiece part 40, hereby it is possible to the rigidity of mounting bracket 320 is improved, therefore, it is possible to strengthen being fixed on Upper extension 110 in mounting bracket 320.Hereby it is possible to the overall rigidity for improving backrest frame F2.

In the 2nd embodiment, a part (lower projection 210) of extension F22 is configured in before passage 80 Side, but this is not limited to, for example, it is also possible to the both sides of lower projection and upper extension are configured in the front side of passage.Separately Outward, in the 2nd embodiment, be provided with backrest frame F2 upper extension 110 and lower projection 210 this 2 extensions, but this is not limited to, for example, extension can also arrange more than 3, or only arrange the structure of 1.

In the 2nd embodiment, extension F22 is formed separate from the part of main frame F21, but is not limited to This, for example, extension can also be integrally formed with main frame.

In the 2nd embodiment and the 3rd embodiment, passage 80 is used for supply for cooling down the air of battery, but The purposes of passage is not limited to this, and for example, passage can be used for sucking or blowing out the air of idle call.

In the 2nd embodiment, seat portion is backrest S20, and backrest S20 is built-in as seat frame Backrest frame F2, but be not limited to this.For example, seat portion can also be seat cushion, and the seat cushion is built-in as seat frame Cushion frame.In addition, when seat portion is seat cushion, being adjacent in the seat cushion side, for example, the part such as side seat cushion is suitable In sidepiece.In addition, when seat portion is seat cushion, left and right directions is equivalent to " the 1st direction " that seat portion and sidepiece are arranged, upper and lower To equivalent to seated person and seat portion opposite " the 2nd direction ", fore-and-aft direction is equivalent to vertical with the 1st direction and the 2nd direction both sides Straight " the 3rd direction ".

In the 3rd embodiment, as shown in figure 22, cap assembly 91 is fixed on armrest S24, but is not limited to this.Example Such as, illustrate with reference to Figure 22, cap assembly 91 is when with retractility, it is also possible to connect the armrest S24 in dress state is received Bottom front part and backrest S12 leading flank receptacle portion H1 section below mode, be fixed on armrest The both sides of S24 and backrest S12.

In addition, as shown in Figure 41 (a), cap assembly 93 to be fixed on the armrest in dress state is received by its upper end by suture etc. The bottom of S24, and by the bending in the way of wound on bar-shaped portion 79 of its bottom, and after being configured in space S P1, pass through Holder or pin are fixed on the forward surface G1 of downside, wherein, bar-shaped portion 79 is arranged at receptacle portion H1, and prolongs in left-right direction Stretch.Here, cap assembly 93 possesses the pars contractilis 93A with retractility.Pars contractilis 93A is arranged on the bottom of cap assembly 93, When armrest S24 is to receive dress state, cannot see from front side.Under the mode shown in Figure 41, cap assembly 93 has pars contractilis 93A, accordingly, such as shown in Figure 41 (b), when it is use state to make armrest S24, pars contractilis 93A shrinks, and is to receive when armrest S24 is made During dress state, pars contractilis 93A stretches out.Hereby it is possible to suppress cap assembly 93 to produce fold etc..Pars contractilis 93A for example can be by can Flexible rubber strip etc. is formed, it is also possible to be formed as telescopic accordion-like.In addition, the pars contractilis of cap assembly is arranged to:When Armrest is stretched out when being use state, shrink when armrest is made to receive dress state.

In addition, in the 3rd embodiment and the 4th embodiment, cap assembly 91 is made up of the part of cloth-like, but not It is limited to this, for example, cap assembly can also be by constituting with flexual plate-shaped member etc..

In the 3rd embodiment and the 4th embodiment, the downside forward surface G1 of receptacle portion H1 is formed as to tiltedly front lower The inclined face in side, but it is not limited to this.Illustrate for example, referring to Figure 22, downside forward surface can also be formed as being received with being in The almost parallel face in the lower end of the armrest S24 of dress state.

In the 3rd embodiment and the 4th embodiment, armrest S24 is arranged to：As backrest S22 is from first The position movement downwards of beginning position and to the movement of oblique front lower place, but be not limited to this.For example, could be arranged to：Work as backrest When entirety slides up and down mobile between initial position and lower position, the armrest of backrest is arranged at also with backrest Movement, slide up and down movement.

In the 3rd embodiment, armrest S24, S25 and receptacle portion H1, H3 are arranged on the both sides of backrest S22, But this is not limited to, for example, armrest and receptacle portion can also be positioned only at the side of backrest.In addition, implementing the described 3rd In mode, adjacent component (center seat S1 and left side S4) is arranged on the both sides of left-side seat S2, but is not limited to this, example Such as, adjacent component can also be positioned only at the side of seat.

In the 3rd embodiment, it is configured to passage 80 with transverse tube portion 81, and in bent intermediate, but be not limited to This, for example, passage can also be configured to extend straight along the longitudinal direction.

The structure of the vehicle seat used S illustrated in the 3rd embodiment and the 4th embodiment is an example, and It is not limited to said structure.Illustrate for example, referring to Figure 26, vehicle seat used S can also have：Left-side seat S2 and right side seat A seat, left side S4 and right side S5 that chair S6 is integrally formed.

In the 6th embodiment, near the corner at the back side of support 103, it is each provided with one, adds up to four hooks Portion 170, but in the present invention, there is no particular limitation for the quantity of hook portion and configuration.For example, as shown in figure 42, when only arranging two During individual hook portion 170, two hook portions 170 are configured to：In the above-below direction central portion at the back side of support 103 (the 2nd support 160) Left and right interval configuration.In addition, illustrating with reference to Figure 42, when 2 hook portions are only arranged, 2 hook portions can also be in support The left and right directions central portion interval configuration apart from top to bottom at the back side of 103 (the 2nd supports 160).In addition, for example, when 3 hook portions of setting When, 3 hook portions can be configured in vertex of a triangle position as 3 bolts 108.In addition, when arranging more than 3, making Hook portion is spaced apart interval to arrange, and accordingly, when travel mechanism is installed on into backboard, can suppress travel mechanism's (seat) phase For backboard is rocked.

In the 6th embodiment, show that travel mechanism 100 has hook portion 170, backboard 60 has hook portion holding section 71 structure, but it is not limited to this.For example, as shown in figure 43, it is also possible to be configured to：Backboard 60 has hook portion 72, travel mechanism 100 have hook portion holding section 180.Specifically, hook portion 72 is arranged to, and dashes forward from the front side face forward of seat mounting bracket 70 Go out, and the shape that top ends are bent upwards, hook portion holding section 180 will bend to the bar-like member of U-shaped by welding etc. Two ends be fixed on the back side of the support 103 of travel mechanism 100 (the 2nd support 160).

The hook portion illustrated in the 6th embodiment and the structure of hook portion holding section are an examples, however it is not limited on State structure.For example, it is corresponding with the two of left-right situs hook portions 170 in the 6th embodiment, it is provided with 1 hook portion engaging Portion 71, but it is not limited to this, it is also possible to 1 hook portion holding section is respectively arranged to each hook portion.In addition, for example, in the 6th embodiment party In formula, hook portion holding section 71 is formed by installing the bar-like member for bending to U-shaped, but be not limited to this, for example, also may be used With by being provided as the logical of the hook portion holding section that hook portion can engage on the seat mounting bracket 70 of the 6th embodiment Hole etc. is forming hook portion holding section.In addition, hook portion holding section can also be set directly on backboard.

In addition, as shown in figure 44, hook portion 190 can also be configured to, it is made up of the part with 2 pawls 192,193, and 2 Individual pawl 192,193 to clasp hook portion holding section 71 in the way of engaging.In addition, as shown in Figure 45 (a), (b), be arranged above and below configuration Hook portion 73,74 or hook portion 73,75 at least one party hook portion 74,75 can also have anti-shedding part 74A, 75A, the anticreep Portion 74A, the 75A of falling suppresses coming off for the hook portion holding section 180 engaged with hook portion 74,75.

It is only by the engaging of hook portion 170 and hook portion holding section 71 that travel mechanism 100 is (left in the 6th embodiment Side seat SL) it is arranged on backboard 60, but it is not limited to this.For example, it is also possible to be：Hook portion and the engaging conduct of hook portion holding section It is interim to fix to play a role, afterwards, by welding or the fastening of bolt etc., backboard 60 is fixed on into travel mechanism 100.

In the 6th embodiment, reinforcing plate 104 is set to：When guide post 101 upper end in the lateral direction inner side During bending etc., the upper end of guide post 101 abuts with reinforcing plate 104, but is not limited to this.For example, reinforcing plate can also be arranged For：When support is installed on, abut with guide post always.So, reinforcing plate is configured to be abutted with guide post, thus, it is possible to It is enough that guide post is supported by reinforcing plate, and the unnecessary deformation of guide post can be suppressed.

In the 6th embodiment, travel mechanism 100 is being installed on reinforcing plate 104 shape of backrest frame F2 Under state, its front end abuts with the back side of seat frame frame plate 650, but is not limited to this.For example, reinforcing plate 104 it can also be provided that： In the state of travel mechanism 100 to be installed on backrest frame F2, there is a little between seat frame frame plate 650 Gap, when riding in the seated person in left-side seat SL and leaning on backrest and apply to lean on load, itself and seat frame frame plate 650 Abut.

In the 6th embodiment, support 103 is made up of the 1st support 150 and the 2nd support 160 the two parts, But this is not limited to, for example, support can also be made up of 1 parts.

The structure of the reinforcing plate shown in the 6th embodiment is an example, but is not limited to said structure.Example Such as, in the 6th embodiment, reinforcing plate 104 is formed as, and is in L-shaped shape when side-looking is observed, but is not limited to this, Can be formed as, the u-shaped shape when side-looking is observed.Specifically, illustrate with reference to Figure 32, reinforcing plate 104 may be constructed Be with：By fixed part 141；The rib 142 of downside, it by the lower end of fixed part 141 from being extended forwards；With adding for upside Strong portion, it by the upper end of fixed part 141 from being extended forwards.

In the 6th embodiment, the frame extensions of connecting bracket 630 are fixed in the bottom of vertical frame section 11 632, but it is not limited to this.For example, it is also possible to be fixed on the main part of connecting bracket.In addition, in the 6th embodiment, Connecting bracket 630 is fixed in the bottom of vertical frame section 11, and the upper end of bottom body side frame 21 is rotatably propped up Frame extension 632 is supported, but is not limited to this, and for example, backrest can also be configured to, and the upper end of its underpart body side frame is consolidated Due to connecting bracket, the bottom of its vertical frame section (top body side frame) is pivotally supported on frame extensions.

In the 6th embodiment, the vertical frame section 11 (top body side frame) being made up of pipe is formed and prolonged in upper and lower straight line The shape stretched, but this is not limited to, for example, top body side frame is for the parts for avoiding being configured in backrest, it is also possible to Be formed as the shape to the inner or outer side on the left and right directions of backrest frame recessed (avoiding) bending.In addition, described In 6th embodiment, vertical frame section 11 and bottom body side frame 21 are made up of metal pipe, but are not limited to this, for example, side frame The sheet metal component that frame can also be shaped by pressure processing is constituted.

The structure of the travel mechanism shown in the embodiment is an example, however it is not limited to said structure.As one Example, in said embodiment, is configured to：The bar-like member of the side being arranged in backrest frame F2 and backboard 60, With the cartridge of the opposing party being arranged in backrest frame F2 and backboard 60 with the state engaging that slidably (can slide), Accordingly, backrest frame F2 is moved up and down, but is not limited to this.For example, it is also possible to be configured to：It is arranged at backrest frame The track of framework side and the track of the plate side that is arranged at backboard engage in the state of it can slide, accordingly, backrest frame Frame is moved up and down.

In said embodiment, the example for applying the present invention to the seat used in the pillion of automobile is shown Son, but it is not limited to this.For example, the present invention can also be suitable for the seat used in driver's seat or co-pilot seat in automobile etc. Chair.In addition, the present invention can also be applied to the vehicles beyond automobile, for example, can be applied in train, ship, aircraft etc. Used in seat.

Claims

1. a kind of mounting structure of vehicle seat, it is used to install backrest, the backrest is moved up and down, Characterized in that, having：

Backrest frame, it has upper frame and lower frame, and the upper frame constitutes the upside of the backrest Partial framework, the lower frame constitutes the framework of the lower portion of the backrest, and can be relative on described Portion's framework is rotated in front and back centered on the axle for extending in left-right direction；

Backboard, it is configured in the rear of the backrest；With

Travel mechanism, it enables the backrest frame to move up and down relative to the backboard,

The backboard has a recess, and the travel mechanism into the state in the recess being configured at the recess.

2. the mounting structure of vehicle seat according to claim 1, it is characterised in that

The travel mechanism has：Frame side part, it is connected with the backrest frame；With plate sidepiece part, it is fixed on The backboard, engages and guides moving up and down for the frame side part with the frame side part,

The recess is arranged to：The frame side part is set to be sticked in the plate sidepiece part from below in the recess.

3. the mounting structure of vehicle seat according to claim 2, it is characterised in that

The plate sidepiece part has holding section, and the holding section engages with the frame side part,

The backboard has engaging guide portion, and when the backrest is installed on the backboard, the engaging guide portion will The frame side part to the holding section guides.

4. the mounting structure of the vehicle seat according to Claims 2 or 3, it is characterised in that

The backboard has mark, when the backrest is installed on the backboard, make the upper end of the backrest with The label alignment, thus, the frame side part and the plate sidepiece part is aligned in the position that can be engaged.

5. the mounting structure of the vehicle seat according to Claims 2 or 3, it is characterised in that

The recess is arranged to：When the backrest is installed on the backboard, make the upper end of the backrest with The upper edge alignment of the recess, thus, is aligned in what is can engaged by the frame side part and the plate sidepiece part Position.

6. the mounting structure of the vehicle seat according to any one of Claims 1 to 5, it is characterised in that

The travel mechanism has：Frame side part, it is connected with the backrest frame；Plate sidepiece part, itself and the back of the body Plate connects, and guides moving up and down for the frame side part,

The frame side part is fixed on the bottom of the upper frame.

7. the mounting structure of the vehicle seat according to any one of claim 1～6, it is characterised in that

With supporting member, during the side in its supporting upper frame and the lower frame enables to be with the axle The heart is rotated,

The travel mechanism has：Frame side part, it connects with the opposing party in the upper frame and the lower frame； Plate sidepiece part, it is connected with the backboard, guides moving up and down for the frame side part,

The frame side part is engaged with the supporting member.

8. the mounting structure of the vehicle seat according to any one of claim 1～7, it is characterised in that

The travel mechanism has：Frame side part, it is connected with the backrest frame；With plate sidepiece part, its with it is described Backboard connects, and guides moving up and down for the frame side part,

The upper frame has the vertical frame section for extending up and down,

The frame side part has the directed section for extending up and down, is guided the directed section to carry out by the plate sidepiece part Lower movement,

The directed section is always observed from right and left, by more upwards further away from the vertical frame section in the way of relative to described vertical Frame section is inclined.

9. the mounting structure of the vehicle seat according to any one of claim 1～8, it is characterised in that

The travel mechanism has：Frame side part, it is connected with the upper frame；With plate sidepiece part, itself and the backboard Connection, guides moving up and down for the frame side part,

The directed section is observed from left and right directions, is bent in the mode that front side is recessed.

10. the mounting structure of the vehicle seat according to any one of claim 1～9, it is characterised in that

The backrest is configured in, the position at least contacting with the backboard when by leaning on load.

The mounting structure of 11. vehicle seats according to claim 1, it is characterised in that

The vehicle seat has：

Seat portion, its built-in seat frame, and it is opposite with seated person；

Sidepiece, it is adjacent in the side of the seat portion；With

Passage, the opening portion of one side is configured at the sidepiece,

The seat frame has main frame and extension, and the extension extends from the main frame to the lateral side, institute State passage to be configured to：Observe from the 3rd direction, it is Chong Die with the extension, wherein, the 3rd direction is perpendicular to the seat portion The both sides in the 2nd opposite direction of the 1st direction and seated person and the seat portion that are arranged with the sidepiece.

The mounting structure of 12. vehicle seats according to claim 11, it is characterised in that

The vehicle seat has the load bearing part for being installed on the extension,

At least a portion of the load bearing part is configured in compared with the passage closer to seated person side.

The mounting structure of 13. vehicle seats according to claim 1, it is characterised in that

The vehicle seat has：

1st seat, it has the 1st seat cushion and the 1st backrest；

1st adjacent component, it is adjacent in the 1st backrest side；With

1st backrest travel mechanism, it enables the 1st backrest in initial position and the lower section positioned at initial position Lower position between move,

1st seat have the 1st armrest, the 1st armrest be arranged on the 1st backrest, be configured with the 1st phase The side of adjacent part, and can be rotated centered on the axle for extending in left-right direction,

1st adjacent component has the 1st armrest receptacle portion, and the 1st armrest receptacle portion is used to receive the described 1st when dress is not used Armrest,

The 1st armrest receptacle portion has the 1st downside forward surface, the 1st downside forward surface and the 1st armrest for being received dress Lower end is opposite,

When the 1st backrest is in initial position, arrange between the 1st armrest and the 1st downside forward surface Have space, the space be used for allow the 1st armrest with the 1st backrest from initial position downwards position movement and The movement for carrying out.

The mounting structure of 14. vehicle seats according to claim 13, it is characterised in that

The vehicle seat has：

2nd seat, it has the 2nd seat cushion and the 2nd backrest, the 2nd backrest the 1st adjacent component and The contrary side of 1st seat, is adjacent to the 1st adjacent component；With

2nd backrest travel mechanism, it enables the 2nd backrest in initial position and the lower section positioned at initial position Lower position between move,

2nd seat has the 2nd armrest, the 2nd armrest be arranged at the 2nd backrest, to be configured with the described 1st adjacent The side of part, and can be rotated centered on the axle for extending in left-right direction,

1st adjacent component has the 2nd armrest receptacle portion, and the 2nd armrest receptacle portion is used to receive the described 2nd when dress is not used Armrest,

The 2nd armrest receptacle portion has the 2nd downside forward surface, the 2nd downside forward surface and the 2nd armrest for being received dress Lower end is opposite,

When the 2nd backrest is in initial position, arrange between the 2nd armrest and the 2nd downside forward surface Have space, the space be used for allow the 2nd armrest with the 2nd backrest from initial position downwards position movement and The movement for carrying out.

The mounting structure of 15. vehicle seats according to claim 1, it is characterised in that

A side in the backboard and the travel mechanism has hook portion,

The opposing party in the backboard and the travel mechanism has the hook portion holding section for hook portion engaging.

The mounting structure of 16. vehicle seats according to claim 15, it is characterised in that

The travel mechanism has：The support of tabular, it is fixed on by the engaging of the hook portion and the hook portion holding section The backboard；And reinforcing plate, it is fixed on the support.

The mounting structure of 17. vehicle seats according to claim 15 or 16, it is characterised in that

The backrest frame has connecting bracket, and the connecting bracket connects the upper frame and the lower frame,

The upper frame has the top body side frame of left and right, and interval is configured between the top body side frame of the left and right or so,

The lower frame has the bottom body side frame of left and right, and interval is configured between the bottom body side frame of the left and right or so,

The connecting bracket has the frame extensions of the main part of tabular and left and right, and the frame extensions of the left and right are from the master The left and right two ends in body portion extend forwards,

A side in the upper end of the bottom of the top body side frame and the bottom body side frame is fixed on the connecting bracket, The opposing party in the upper end of the bottom of the top body side frame and the bottom body side frame is supported on the frame extensions, And the opposing party in the upper end of the bottom of the top body side frame and the bottom body side frame can be with left-right direction Rotate centered on the axle of extension.

The mounting structure of 18. vehicle seats according to claim 17, it is characterised in that

The top body side frame in upper and lower linearly extended pipe by constituting.

The mounting structure of 19. vehicle seats according to any one of claim 15～18, it is characterised in that

The hook portion or so interval and be provided with multiple.

The mounting structure of 20. vehicle seats according to any one of claim 15～19, it is characterised in that

Hook portion interval apart from top to bottom and be provided with multiple.