CN102666191A

CN102666191A - Vehicle seat

Info

Publication number: CN102666191A
Application number: CN2010800593702A
Authority: CN
Inventors: 仓知晋士; 服部亮
Original assignee: Toyota Auto Body Co Ltd
Current assignee: Toyota Auto Body Co Ltd
Priority date: 2009-12-25
Filing date: 2010-11-24
Publication date: 2012-09-12
Anticipated expiration: 2030-11-24
Also published as: CN102666191B; JP2011131782A; WO2011077888A1; JP5387390B2

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat which expands a cargo room width, by restraining a projection quantity to the cabin space of an undercover while jumping up the vehicle seat. ; SOLUTION: The undercover 80 is moved to a position A separated from a seat cushion 12 by interlocking with a leg 50 when deploying the leg 50 by a parallel link mechanism arranged in the vehicle seat 10, and the undercover 80 is moved to a position B close to the seat cushion 12 by interlocking with the leg 50 when folding up the leg 50.

Description

Vehicle seat used

Technical field

The present invention relates to a kind of can be to railroad car lateral wall upset vehicle seat used.

Background technology

In the past, known miniature van-type vehicle as este wagon (wagon), cargo cab (van) also possessed the 3rd row's seat except possessing front-row seats and back seat.Vehicle seat used as this 3rd row, adopted convertible seat.

In convertible seat, the shank of seat releasably is arranged on the vehicle floor.When using seat, seat cushion is configured on the use location of level, and back of seat is holded up configuration from this seat cushion.When seat was packed up, back of seat was poured on the seat cushion.Then, shank was unloaded also by the state that folds to the seat cushion bottom surface from vehicle floor under, seat cushion and back of seat were overturn by the form of extending with the sidewall along vehicle floor, thereby seat integral body is configured on the stowed position.

Yet, because seat bottom faced chamber exposes the inboard under the state that seat is reversed, so for attractive in appearance, lower cover (under cover) is configured on the bottom surface of seat cushion.Thus, lower cover covers shank and seat bottom surface (with reference to the patent documentation 1) that is folded.

Patent documentation 1: japanese kokai publication hei 10-258660 communique

Yet, in lower cover in the past, the space between lower cover and the seat cushion is kept more than the certain distance.This is that the seat cushion buttocks that makes the occupant that is shifted downwards produces interference between seat cushion and lower cover when taking one's seat on the seat because of the occupant.

Therefore, under seat cushion was in rollover states, lower cover was in state outstanding in the compartment, thereby the problems such as luggage compartment narrowed width of vehicle can occur.

Summary of the invention

The objective of the invention is to, provide a kind of, under the vehicle seat used state that is reversed, can suppress lower cover in the space, compartment overhang and make vehicle seat used that the luggage compartment width enlarges.

In order to remove the problems referred to above point; A form of the present invention provides a kind of vehicle seat used; Have: seat cushion is supported rotatably in the compartment of vehicle, and can overturns to the stowed position of the form configuration of extending with the sidewall along said compartment from the use location that can take one's seat; And shank, it is supported on the cushion frame of said seat cushion with the form that can optionally fold and launch.Vehicle seat used possess: lower cover covers the lower surface of said seat cushion; And supporting device, said lower cover is bearing on the said seat cushion movably.When said seat cushion is configured on the use location; Even thereby said supporting device make said lower cover to the direction of leaving from said seat cushion move this lower cover is configured in the occupant when sitting on the said seat cushion this seat cushion be shifted downwards also not on the position that interferes with this seat cushion; And when said seat cushion was configured on the stowed position, said supporting device made said lower cover move to the position near said seat cushion.

Preferably; Said supporting device is the bindiny mechanism that is connected on the said shank; When said shank is unfolded; Said bindiny mechanism and the interlock of said shank also make said lower cover move to the position of leaving from said seat cushion, and when said shank was folded, said bindiny mechanism and the interlock of said shank also made said lower cover move to the position near said seat cushion.

Preferably, said bindiny mechanism is formed by four-link mechanism, and said four-link mechanism comprises: said lower cover; Said cushion frame; Said shank; And link rod, can rotationally said cushion frame and said lower cover be linked each other.

Preferably, said lower cover has the incorporating section, and this shank is accommodated in this incorporating section when said shank is folded.

Preferably, said lower cover possesses pattern plane, and in the time of in said shank is folded and is incorporated in said incorporating section, said shank is incorporated in not pattern plane from said lower cover to outstanding position, outside.

Preferably, further possess masking material, when said lower cover has left said seat cushion, between said lower cover and said seat cushion, be formed with the space, said masking material covers said space.

Based on the present invention because lower cover approaches seat cushion when seat cushion is configured on the stowed position, so can suppress lower cover in the space, compartment overhang and the luggage compartment width is enlarged.In addition, be configured under the situation on the use location, can lower cover be configured in from the position that seat cushion leaves at seat cushion.Therefore, even when making seat cushion carry out displacement downwards because of occupant's weight when the occupant takes one's seat on cushion, can prevent that also the seat cushion that has been shifted from interfering lower cover.

If upset during seat cushion shank be folded, the lower cover that is connected on the shank will and cover the lower surface of seat cushion near seat cushion.Its result, because lower cover approaches seat cushion, thus can reduce the overhang of lower cover in the space, compartment, thus can not make the luggage compartment narrowed width in the car.In addition, if when being configured in seat cushion on the use location, launch shank, lower cover just leaves from seat cushion.Its result, even because occupant when making seat cushion carry out displacement downwards because of occupant's weight when taking one's seat on cushion, lower cover also with the seat cushion lower surface, be that separate the bottom surface, interfere lower cover so can prevent occupant's buttocks.

Because bindiny mechanism is made up of four-link mechanism, so can realize above-mentioned effect easily.

In addition, when shank was folded, this shank was incorporated in the incorporating section, can reduce thus lower cover to the compartment, be the overhang in the luggage compartment, thereby can not make the luggage compartment narrowed width in the car.

Because lower cover leaves from seat cushion when seat cushion is positioned at the use location that can take one's seat, so on this separated portions, be formed with the space.Because the covered parts in this space cover, make that said space is covered from the outside, thereby outward appearance is worsened.

Description of drawings

Fig. 1 is the vehicle seat used block diagram of expression an embodiment of the invention, the diagram of the part of the seat when this figure has omitted use.

Fig. 2 is the lateral plan of the position of the vehicle seat used lower cover when being in the use location of expression.

Fig. 3 is the block diagram of the installation constitution of expression lower cover.

Fig. 4 is the block diagram of the installation constitution of expression lower cover.

Vehicle seat used block diagram when Fig. 5 is the expression use.

Fig. 6 is the vehicle seat used block diagram of expression when packing up.

Fig. 7 is the vehicle seat used use location of expression and the figure of stowed position.

Fig. 8 is the vehicle seat used figure that expression is positioned at luggage compartment and stowed position.

Fig. 9 is the skeleton diagram of formation of the lower cover of other embodiments of expression.

The specific embodiment

Below, with reference to Fig. 1～Fig. 8, the vehicle seat used of an embodiment of the invention described.In addition, for the ease of explanation, this embodiment vehicle seat used for being arranged on the vehicle seat used of right side in the compartment.

As shown in Figure 2, vehicle seat used 10 are configured in the compartment, and it possesses seat cushion 12, is attached at back of seat 14 on the rear portion of seat cushion 12 rotationally.Seat cushion 12 has roughly tetragonal cushion frame 16, being stretched is arranged on pad 20 that the spring body 18 (with reference to Fig. 1) on the cushion frame 16 supported and the epidermis 22 that covers pad 20.

Cushion frame 16 is that circular tubing forms by the cross section, and it possesses front baffle 16a and the rear frame 16b and the left frame 16c and the correct frame 16d that lay respectively at position, the left and right sides that lays respectively at seat 10 front and back positions.In addition, it is that circular tubing forms that cushion frame 16 is not limited in by the cross section, can be that tetragonal tubing forms by the cross section also, can be that section bar such as L word shape forms by the cross section also perhaps.

In addition, back of seat 14 has roughly tetragonal back frame 24 (Fig. 1), is stretched to be arranged on and does not give pad 26 that graphic spring body supports and the epidermis 28 that covers pad 26 on the back frame 24.As shown in Figure 1, be provided with leaning device 30 (reclining mechanism) between cushion frame 16 and the back frame 24, this leaning device 30 is attached at back of seat 14 on the seat cushion 12 with the form that can carry out angular adjustment.

As shown in Figure 7, with the sidewall 34 in seat cushion 12 compartments adjacent, vehicle M on linkage 32 is installed.Linkage 32 possesses and is fixed on not giving graphic fixed parts and being installed in rotation on the movable member 38 (Fig. 1) on the said fixed parts on the sidewall 34.The correct frame 16d of cushion frame 16 is attached on the said movable member 38.

Seat cushion 12 makes use location and (as shown in Figure 6) of this seat cushion 12 and floor compartment surface 42 configured in parallel so that rotate between the form upset that this seat cushion 12 extends along sidewall 34 and the stowed position of holding up (as shown in Figure 5) through linkage 32.

Like Fig. 1 and shown in Figure 2, the inside portion of seat cushion 12 is provided with shank 50.

Like Fig. 2, Fig. 3 and shown in Figure 4, on the mutual opposed medial surface of the front baffle 16a of cushion frame 16 and rear frame 16b, be fixed with a pair of installation part 46 through fixing meanss such as welding respectively, this is used for mounting leg 50 to part 46 is installed.

On a pair of installation part 46, be respectively arranged with vertical plate 47 with mutual opposed form.On vertical plate 47, run through respectively and be fixed with anchor shaft 48.

The top of the rear and front end of shank 50 is supported rotatably on the said a pair of anchor shaft 48, and can fold with respect to cushion frame 16.Shank 50 is not given graphic link gear and is connected.Seat 10 from the use location when move the stowed position, through said link gear said shank 50 is folded from plumbness with respect to cushion frame 16.In addition, irrelevant because link gear is a public technology with the present invention, so omit its explanation.In addition, seat 10 from the stowed position when move the use location, do not make said shank 50 be in said plumbness through giving graphic said link gear.

As shown in Figure 2, shank 50 ends with the block parts 49a card that is arranged on the vertical plate 47 under the state on the cushion frame 16 in arranged perpendicular.Thus, shank 50 is limited from rightabout the moving of plumbness to folding direction.

The front and back position of the lower end of shank 50 is provided with a pair of locking device 55,56.When shank 50 is in plumbness; Through being arranged on hitting among recess (notch) 55a that bolt (striker) 57,58 is snapped into

locking device

55,56, the 56a on the floor compartment surface 42 with front and back form separated by a certain interval, thereby make shank 50 by locking.Can be through being arranged on not giving graphic control lever and will hit

bolt

57,58 and unload the locking of removing

locking device

55,56 from

recess

55a, 56a down on the seat 10.

Like Fig. 1～shown in Figure 6, in the bottom surface of seat cushion 12, be that lower surface is provided with lower cover 80.As shown in Figure 6, lower cover 80 forms roughly quadrangle tabular, and has the size with the bottom surface covering of seat cushion 12.Lower cover 80 is synthetic resin system or metallic, and has rigidity.The shape of lower cover 80 is unqualified, also can change arbitrarily.Central portion at lower cover 80 is formed with shank 50 and the shape reception hole 81 roughly similar with shank 50 that can take in folded state.In addition, in this embodiment, reception hole 81 is formed on the lower cover 80, and lower cover 80 forms ring-type thus.As long as the rigidity of lower cover 80 is not damaged, also can make reception hole 81 and external communications through the groove of formation and external communications on the part of this ring-type.

In addition, preferably, the face that when folding, exposes to the compartment of said shank 50 forms with the pattern plane (face that exposes to the compartment) of lower cover 80 and flushes, and is perhaps not outstanding from this pattern plane.

As shown in Figure 1, the edge part 81a on the front and back position of said

reception hole

81,81b transversely extend.Be extruded with a

support

82,83 respectively to seat cushion 12 on the transverse ends of the 81a of portion, 81b on the edge of.As shown in Figure 4, the 54 outstanding axis of rockings 60 of the end plate portion from the front and back position of shank 50 can joltily be supported on each support 82 respectively.In addition, in Fig. 4, only the axle support 82 to the front portion illustrates.

In addition, as shown in Figure 3, the link rod 84 that can joltily be bearing on front baffle 16a, the rear frame 16b can joltily be attached on each support 83 through axle 85.In addition, in Fig. 3, Fig. 4, only the binding with the approaching link rod 84 of front baffle 16a is constituted and illustrate.

As stated, lower cover 80 is attached on the cushion frame 16 through shank 50 and link rod 84, thus constitute with cushion frame 16 be made as fixed knot supporting device and bindiny mechanism, be four-link mechanism.In this embodiment, specifically, constitute four-link mechanism, be parallel linkage mechanism.Shank 50 as shown in Figure 1 with respect to cushion frame 16 be in plumbness, when promptly launching, lower cover 80 is positioned at shown in the long and two-short dash line of Fig. 2 from the position A that seat cushion leaves through said four-link mechanism.

As shown in Figure 2, this position A is set to, and is shifted downwards because of people's weight even sit in seat cushion 12 last time seat cushion 12 the occupant, and the seat cushion 12 that has been shifted can not interfered the position of lower cover 80 yet.In addition, carry out the setting of position A, the i.e. setting of the separating distance of bottom surface and the lower cover 80 of the seat cushion 12 when not taking one's seat according to the result who obtains by test.

In addition, when shank 50 was folded, four-link mechanism produced start according to the jackknife action of shank 50, and lower cover 80 is positioned at shown in the long and two-short dash line of Fig. 2 the position B near the bottom surface of seat cushion 12.

Then, will switch to from the use location under the situation of stowed position with the seat 10 that above-mentioned form constitutes, shown in the solid line of Fig. 7, at first the user swings to seat cushion 12 with back of seat 14 and it is stacked on the seat cushion 12.Then, the user does not remove the locking of 55,56 pairs of shanks 50 of locking device through giving graphic control lever, and is center tip-up set 10 with linkage 32.Its result, as shown in Figure 7, seat cushion 12 moves to the stowed position shown in the long and two-short dash line from the use location shown in the solid line.

In addition, seat 10 from the use location when move the stowed position, through giving graphic link gear said shank 50 is folded.

Be folded through this shank 50, A moves to the position B near the bottom surface of seat cushion 12 lower cover 80 from the position through four-link mechanism.In addition, shown in the long and two-short dash line of Fig. 5 and Fig. 7, shank 50 is incorporated in the reception hole 81.Reception hole 81 is equivalent to the incorporating section.

In Fig. 7, shown in long and two-short dash line, show shank 50 and be incorporated in the state in the reception hole 81.If shank 50 turns to the folding position, shank 50 will contact on the bottom surface of seat cushion 12, and these shank 50 further rotations are limited.

Seat cushion 12 shown in the long and two-short dash line of Fig. 7 is changed to from the stowed position under the situation of use location, and at first seat cushion 12 is configured on the use location.Then, through not giving graphic link gear, shank 50 launches and rotates till ending with block parts 49a card from folded state, and makes this shank 50 be in the state vertical with cushion frame 16, be deployed condition.

Through rotating this shank 50, B moves to the position A that leaves from the bottom surface of seat cushion 12 lower cover 80 from the position through four-link mechanism.

In Fig. 7, shown in solid line, show the deployed condition of shank 50.Then, the user makes hitting among recess 55a that bolt 57,58 snaps in the

locking device

55,56 of the shank 50 that is in deployed condition, the 56a on the floor compartment surface 42, thereby shank 50 is by locking.

Based on this embodiment, can obtain following effect.

(1) vehicle seat used 10 of this embodiment possess the lower cover 80 of the lower surface that covers seat cushion 12 and are connected the bindiny mechanism on the shank 50.When shank 50 was unfolded, bindiny mechanism and shank 50 linked and lower cover 80 are moved to from the position A that seat cushion 12 leaves.In addition, when shank 50 was folded, bindiny mechanism and shank 50 linked and lower cover 80 are moved to the position B near seat cushion 12.

Its result, if upset during seat cushion 12 shank 50 be folded, the lower cover 80 that is connected on the shank 50 will and cover the lower surface of seat cushion 12 near seat cushion 12.Its result, because lower cover 80 approaches seat cushion 12, thus can reduce the overhang of lower cover 80 to vehicle interior space, thus can not make the luggage compartment narrowed width in the car.In addition, if when making seat cushion 12 be positioned at the use location, launch shank 50, lower cover 80 just leaves from seat cushion 12.Its result, even the occupant sits in 12 last times of seat cushion when making seat cushion 12 carry out displacement downwards because of occupant's weight, lower cover 80 also separates with seat cushion 12 lower surfaces.The seat cushion that therefore, can prevent to be shifted is interfered lower cover 80.

Though in this embodiment; Only the formation to the seat on the right side of vehicle M is illustrated; Yet generally as a rule, be provided with seat too in the left side of vehicle M, this seat forms changing about aforesaid vehicle seat used formation.In this case, as shown in Figure 8, lower cover 80 tails off to the overhang of vehicle interior space from each the locational cushion frame 16 that is configured in vehicle M both sides.Therefore, can reduce the thickness of seat cushion 12, thereby can make the luggage compartment width of vehicle enlarge corresponding with it amount.In addition, in Fig. 8, show a pair of seat 10 and be configured in the state on the stowed position with the form of extending along vehicle M side walls 34.Shown in Figure 8 like this, as long as lower cover 80 tails off to the overhang of vehicle interior space from the cushion frame 16 that is configured in a pair of seat 10 on the stowed position, just can further help to make the luggage compartment width to enlarge.

(2) vehicle seat used 10 of this embodiment have and comprise lower cover 80, cushion frame 16 and shank 50 at interior four-link mechanism.Its result through four-link mechanism, can realize above-mentioned effect (1) easily.In addition, in this embodiment, because four-link mechanism is a parallel linkage mechanism, so can make lower cover 80 and cushion frame 16 parallel moving.

(3) this embodiment vehicle seat used 10 in, lower cover 80 is provided with reception hole 81, the incorporating section that when shank 50 is folded, can put into shank 50.Its result, when folding shank 50 was folded, shank 50 was incorporated in reception hole 81, is in the incorporating section.Thus, can reduce lower cover 80 to the compartment, be the overhang in the luggage compartment, thereby can not make the luggage compartment narrowed width in the car.

(4) this embodiment vehicle seat used 10 in, be folded and be incorporated in reception hole 81 at shank 50, be in the incorporating section time that shank 50 is incorporated in not from the outstanding position of the pattern plane of lower cover 80.Its result when shank 50 is folded, can reduce the overhang of shank 50 to vehicle interior space, thereby can not make the luggage compartment narrowed width in the car.

In addition, this embodiment also can change to following form.

In said embodiment, as shown in Figure 2, further, also can be, can link the circumference of lower cover 80 and the circumference of seat cushion 12 by flexible lid parts 120 with fabric or plastic masking material.When seat cushion 12 is positioned at the use location, between lower cover 80 and seat cushion 12, be formed with the space.Because this space tegmentum parts 120 cover, so can't see this space from the outside.In addition, in Fig. 2,, only show the state on the front portion that pliability cover 120 is configured in seat cushion 12 for the ease of explanation.In addition, preferably, pliability cover 120 is configured to covering around whole between the circumference of lower cover 80 and seat cushion 12 circumferences, yet only also can be configured to the circumference covering with a part.

When seat cushion 12 was positioned at the use location that can take one's seat, lower cover 80 left from seat cushion 12.Owing to be provided with the masking material that the opening that is formed on this separated portions is covered, make that separated space is covered from the outside, thereby outward appearance is worsened.

Though in said embodiment, bindiny mechanism is a parallel linkage mechanism, yet also can change to the crossbinding linkage, replaces parallel linkage mechanism with this.

Fig. 9 representes the example of crossbinding linkage.As shown in Figure 9, cushion frame 16 and lower cover 80 constitute the form identical with said embodiment with the point of contact (anchor shaft 48, axis of rocking 60) of shank 50.Cushion frame 16 and lower cover 80 are configured in this cushion frame 16 and lower cover 80 the 1st link rod 100 and the 2nd link rod 110 between the two links together by cross-shaped.

But be attached on the anchor shaft 48 to an end coaxial rotation of the 1st link rod 100, the other end of the 1st link rod 100 constitutes the sliding part (slider) that can move to the direction of the arrow C of Fig. 9 with respect to lower cover 80.In addition, but an end coaxial rotation of the 2nd link rod 110 be attached on the axis of rocking 60, the other end of the 2nd link rod 110 constitutes the sliding part that can move along the direction of the arrow D of Fig. 9 with respect to cushion frame 16.

In said embodiment, in the expansion of shank 50 and when folding, lower cover 80 moves between position A, B through bindiny mechanism.Make lower cover 80 to move through link mechanism under the situation that also can have nothing to do, replace bindiny mechanism with this near the form of perhaps leaving cushion frame 16 in action with shank 50.

Claims

One kind vehicle seat used, have:

Seat cushion is supported rotatably in the compartment of vehicle, and can overturn to the stowed position of the form configuration of extending with the sidewall along said compartment from the use location that can take one's seat; And shank, it is supported on the cushion frame of said seat cushion with the form that can optionally fold and launch,

It is characterized in that said vehicle seat usedly possess:

Lower cover covers the lower surface of said seat cushion; And

Supporting device is bearing in said lower cover on the said seat cushion movably,

When said seat cushion is configured on the use location; Even thereby said supporting device make said lower cover to the direction of leaving from said seat cushion move this lower cover is configured in the occupant when sitting on the said seat cushion this seat cushion be shifted downwards also not on the position that interferes with this seat cushion; And when said seat cushion was configured on the stowed position, said supporting device made said lower cover move to the position near said seat cushion.
2. according to claim 1 vehicle seat used, it is characterized in that,

Said supporting device is the bindiny mechanism that is connected on the said shank; When said shank is unfolded; Said bindiny mechanism and the interlock of said shank also make said lower cover move to the position of leaving from said seat cushion; And when said shank was folded, said bindiny mechanism and the interlock of said shank also made said lower cover move to the position near said seat cushion.
3. according to claim 2 vehicle seat used, it is characterized in that,

Said bindiny mechanism is formed by four-link mechanism, and said four-link mechanism comprises:

Said lower cover;

Said cushion frame;

Said shank; And

Link rod can link said cushion frame and said lower cover each other rotationally.
4. described vehicle seat used according to claim 2 or claim 3, it is characterized in that,

Said lower cover has the incorporating section, and this shank is accommodated in this incorporating section when said shank is folded.
5. according to claim 4 vehicle seat used, it is characterized in that,

Said lower cover possesses pattern plane, and in the time of in said shank is folded and is incorporated in said incorporating section, said shank is incorporated in not pattern plane from said lower cover to outstanding position, outside.
According in claim 2～claim 5 any one described vehicle seat used, it is characterized in that,

Further possess masking material, when said lower cover has left said seat cushion, between said lower cover and said seat cushion, be formed with the space, said masking material covers said space.