CN108297743B - Chair (Ref. now to FIGS) - Google Patents

Abstract

The invention provides a seat which can be applied to a vehicle having a raised portion formed below the seat. The lifting seat (20) has a lifting mechanism (30) and a seat body (32). The lifting mechanism (30) is configured in a manner that the seat body (32) can move between a storage position and a loading and unloading position. When the seat body (32) is stored in the storage position, the base part (61) of the swivel base (55) and the front lifting base (82) are arranged so as not to overlap in the vertical direction. The rotary base (55) is rotatably supported above the front and rear sliding sections (36). The front lifting base (82) is arranged at the front part (38b) of the lifting part (38).

Description

Chair (Ref. now to FIGS)

Technical Field

The invention relates to a seat.

Background

Among the seats, there is known a seat having a lifting mechanism for moving a seat body for a vehicle from a storage position in a vehicle compartment to a loading/unloading position outside the vehicle. The lifting mechanism comprises a foot part, a front-back sliding part, a rotating part, a lifting part and an outer sliding part. In addition, the seat body is provided in the outer slide portion.

According to this seat, the leg portion moves the rotating portion in the front-rear direction, and the rotating portion rotates the elevating portion toward the opening portion of the vehicle. Then, the seat body is moved from the opening portion to the outside of the vehicle by the outer slide portion. Then, the seat body is lowered to the getting-on/off position by the lifting unit moving from the opening portion to the outside of the vehicle (see, for example, patent document 1).

[ Prior art documents ]

[ patent document ]

[ patent document 1 ] Japanese patent application laid-open No. 2013-56570

Disclosure of Invention

[ problem to be solved by the invention ]

Here, the seat of patent document 1 includes a leg portion, a front-rear sliding portion, a rotating portion, an elevating portion, and an outer sliding portion below a seat body. Specifically, the leg portion is provided on the floor, and the front-rear sliding portion overlaps the leg portion from above. The rotating portion is overlapped with the front-rear sliding portion from above, and the lifting portion is overlapped with the rotating portion from above. Furthermore, the outer sliding part is overlapped with the lifting part.

Thus, the leg portion, the front-rear sliding portion, the rotating portion, the lifting portion, and the outer sliding portion are stacked in this order from above. Therefore, the height of the seat body from the upper surface of the seat to the leg portion is increased.

On the other hand, there is a vehicle in which a raised portion is formed on a floor below a seat. When the seat is attached to the raised portion of the floor, the seat of the seat body is disposed at a high position. Therefore, when the seat body is moved from the storage position in the vehicle compartment to the getting on/off position outside the vehicle, it is necessary to make an attempt to smoothly move the seat body to the getting on/off position. Thus, it is difficult to adapt the seat having the lifter mechanism to the vehicle having the raised portion formed under the seat.

Accordingly, the present invention provides a seat that can accommodate a vehicle having a raised portion formed below the seat.

[ MEANS FOR solving PROBLEMS ] A method for solving the problems

In order to solve the above problems, the technical scheme 1 of the invention is as follows: a seat (e.g., the lift seat 20 of an embodiment) having: a foot (e.g., foot 35 of an embodiment) fixed to a floor (e.g., floor panel 16 of an embodiment); a first sliding portion (for example, a front-rear sliding portion 36 in the embodiment) disposed above the leg portion and provided so as to be movable in an extending direction of the leg portion; a rotating portion (for example, the rotating portion 37 according to the embodiment) disposed above the first sliding portion and provided rotatably in the first sliding portion; an elevating unit (e.g., elevating unit 38 of the embodiment) provided to the rotating unit; and a seat body (e.g., the seat body 32 of the embodiment) connected above the elevating portion by a second sliding portion (e.g., the outer sliding portion 39 of the embodiment), the seat body is movable between a storage position (e.g., storage position P1 of the embodiment) and a loading/unloading position (e.g., loading/unloading position P2 of the embodiment), a rotating base (for example, the rotating base 55 according to the embodiment) rotatably supported above the first sliding portion among the rotating portions, and a first elevating base (for example, the front elevating base 82 according to the embodiment) provided on one side of the elevating portion in the moving direction of the elevating portion, the seat body is arranged in a front-rear direction of the seat body in a state where the seat body is stored at the storage position, and is arranged so as not to overlap in a vertical direction.

In this way, the rotating base of the rotating unit and the first elevating base of the elevating unit are arranged so as not to overlap in the vertical direction. Therefore, the lifting portion can be lowered toward the rotating portion, the thickness of the seat can be reduced, and the seat can be made thinner.

Here, among the vehicles, there is a vehicle having a fuel tank under a floor portion located on a lower side of a seat. In order to dispose the fuel tank below the floor, a raised portion (a protrusion or a bulge) raised toward the seat is formed in a floor portion located below the seat.

By attaching a seat having a small thickness dimension to the vehicle, the storage position of the seat (specifically, the seat) having the lifting mechanism can be kept low. Therefore, when the seat body is moved from the predetermined position in the vehicle compartment to the upper and lower positions outside the vehicle compartment, the seat body can be smoothly moved to the upper and lower positions.

Accordingly, the seat having the lifting mechanism can be applied to a vehicle having a fuel tank below a floor portion below the seat. In other words, the seat having the lifting mechanism can be applied to a vehicle having a raised portion formed below the seat.

The technical scheme 2 of the invention is as follows: the lifting unit includes a lifting motor (for example, a lifting motor 84 according to an embodiment) that moves the lifting unit, the lifting motor is disposed such that an axis of the lifting motor (for example, an axis 87 according to an embodiment) intersects with a moving direction of the lifting unit, and the lifting motor is disposed on the other side in the moving direction of the lifting unit in a state where the seat body is stored in the storage position.

In this way, the lift motor is disposed such that the axis of the lift motor intersects the moving direction of the lift unit. In the state where the seat is stored, the lift motor is disposed on the other side in the moving direction of the lift unit. Therefore, in the state where the seat body is stored, a large space (space) can be secured in the moving direction of the elevating portion. This can improve the degree of freedom in determining the arrangement position (design) of the components of the seat.

The technical scheme 3 of the invention is as follows: a second lifting base (for example, a rear lifting base 81 in the embodiment) provided on the other side in the moving direction of the lifting unit in the lifting unit is disposed along the upper side of the rotating unit in a state where the seat body is stored in the storage position.

In this way, the second lifting base of the lifting unit is disposed along the upper side of the rotating unit, so that the height of the lifting unit can be reduced. Therefore, the thickness of the seat having the lifting mechanism can be suppressed to be small, and the seat can be thinned. Accordingly, the storage position of the seat having the lifting mechanism can be suppressed to be low.

The technical scheme 4 of the invention is as follows: a raised portion (for example, the raised portion 28 according to the embodiment) raised toward the seat is formed in a portion of the floor below the seat, and a rotating motor (for example, the rotating motor 54 according to the embodiment) for rotating the rotating base is provided on a lower surface (for example, the lower surface 36a according to the embodiment) of the first sliding portion so as to avoid the raised portion.

Here, the floor is formed with a raised portion, and the swivel base is disposed adjacent to the top of the raised portion. Therefore, a space is formed between the floor portion avoiding the raised portion and the first sliding portion.

Then, the rotating electric machine is disposed on the lower surface of the first sliding portion while avoiding the raised portion of the floor. Therefore, the rotating electric machine can be disposed by utilizing the space between the floor and the first sliding portion. Accordingly, the seat can be brought close to the raised portion, and the storage position of the seat having the lifting mechanism can be kept low.

The technical scheme 5 of the invention is as follows: a slide motor (for example, an outer slide motor 101 according to the embodiment) that moves the second slide portion has a height equal to that of the first elevation base and the rotation base in a state where the seat body is stored at the storage position, and is provided between the first elevation base and the rotation base.

In this way, the slide motor is disposed at the same height as the first elevation base and the spin base by using the space between the first elevation base and the spin base. Therefore, the thickness of the seat having the lifting mechanism can be suppressed to be small, and the seat can be thinned.

However, when the seat is thinned, it is conceivable that the seat sinks to interfere with the slide motor when the occupant sits on the seat.

Here, the slide motor is disposed at the same height as the first elevation base and the rotation base by using a space between the first elevation base and the rotation base. Therefore, the slide motor can be disposed below away from the seat. Accordingly, when the occupant sits on the seat, interference between the sinking seat and the sliding motor can be suppressed.

[ Effect of the invention ]

According to the present invention, the rotating base of the rotating portion and the first elevating base of the elevating portion are arranged so as not to overlap in the vertical direction. Therefore, the lifting portion can be lowered toward the rotating portion, and the thickness dimension of the seat can be suppressed to be small. Accordingly, it is possible to provide a seat which can be thinned and can be adapted to a raised portion formed below the seat.

Drawings

Fig. 1 is a perspective view showing a vehicle having a seat according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line II-II of fig. 1 showing a seat in an embodiment of the present invention.

Fig. 3 is a perspective view showing a state in which a seat body is disassembled from the seat according to the embodiment of the present invention.

Fig. 4 is a perspective view showing a state in which the elevating mechanism according to the embodiment of the present invention is disassembled.

Fig. 5 is a perspective view showing a leg portion, a front-rear sliding portion, a rotating portion, and an elevating portion of an elevating mechanism according to an embodiment of the present invention.

Fig. 6 is a sectional view taken along line VI-VI showing the elevator mechanism according to the embodiment of the present invention.

Fig. 7 is a perspective view showing a state in which each part of the rotating portion, the elevating portion, the outer slide portion, and the seat main body rotates in one embodiment of the present invention.

Fig. 8 is a perspective view showing a state in which the elevating mechanism is swung out in one embodiment of the present invention.

Fig. 9 is a perspective view showing a first movable wire cover and a second movable wire cover according to an embodiment of the present invention.

Fig. 10 is a cross-sectional view along the X-X line showing the first movable wire cover and the second movable wire cover according to the embodiment of the present invention.

[ description of reference ]

10: a vehicle; 16: a floor panel (floor); 20: a lift seat (seat); 28: a bulge part: 30: a lifting mechanism; 32: a seat body; 35: a foot portion; 36: a front-rear sliding portion (first sliding portion); 36a … on the lower surface of the front-rear sliding part; 37: a rotating part; 38: a lifting part; 39: an outer slide portion (second slide portion); 54: a rotating electric machine; 55: rotating the base; 81: a rear lifting base (second lifting base); 82: front side elevating base (first elevating base): 84: a lifting motor; 87: an axis of the lift motor; 101: an outer slide motor (slide motor); p1: a storage position (mounting position); p2: and (4) getting on and off positions.

Detailed Description

In the drawings, arrow FR indicates the front of the vehicle, arrow UP indicates the upper side of the vehicle, and arrow L H indicates the left side of the vehicle.

The front-rear sliding portion 36, the rotating portion 37, the lifting portion 38, and the outer sliding portion 39 will be described with the front of the seat body 32 being the front, the left side being the left, and the right side being the right.

As shown in fig. 1 and 2, the vehicle 10 includes: an opening 15 provided in the left front portion 14; a floor (floor) 16 that forms a floor portion of the vehicle compartment 12; a fuel tank 18 disposed below the floor panel 16; and a seat 20 provided on the floor panel 16.

The vehicle cabin 12 is formed on the vehicle width direction inner side of the left front side portion 14.

The opening 15 opens at the left front side portion 14 of the vehicle 10. Specifically, the opening 15 is formed in a rectangular shape by a front edge 15a, a rear edge 15b, a lower edge 15c, and an upper edge 15 d. The front edge portion 15a is formed by a front pillar 22. The rear edge portion 15b is formed by a center pillar 23. The lower edge portion 15c is formed by the rocker 24. The upper edge portion 15d is formed by the roof side rail 25.

The opening 15 is opened and closed by a side door (not shown).

The floor panel 16 is a panel member forming a floor portion of the vehicle compartment 12. The floor 16 has a raised portion 28 formed below the seat 20. The raised portion 28 is raised upward from the floor 16 toward the seat 20. The raised portion 28 has a front wall 28a, a top 28b, and a rear angled portion 28 c. The bulge 28 is also referred to as a protrusion or bulge.

The front wall 28a rises from the floor 16 toward the cabin 12. The roof portion 28b extends horizontally toward the vehicle rear from the upper end portion of the front wall 28 a. The top 28b has a projection 28d at its front end. The projection 28d projects upward. The rear inclined portion 28c extends downward in a sloping manner from the rear end portion 28e of the roof portion 28b toward the vehicle rear.

The fuel tank 18 is disposed in a space 29 below the raised portion 28. That is, the fuel tank 18 is disposed below the seat 20.

As shown in fig. 3 and 4, the seat 20 is provided on the raised portion 28 of the floor panel 16. The seat 20 is used as a passenger seat of the vehicle 10, for example.

The seat 20 has a lifter mechanism 30 and a seat body 32. The lifting mechanism 30 includes a leg portion 35, a front-rear sliding portion (first sliding portion) 36, a rotating portion 37, a lifting portion 38, an outer sliding portion (second sliding portion) 39, a first movable wire cover 41, a second movable wire cover 42, and a wire harness 43.

Fig. 7 shows the first movable wire cover 41, the second movable wire cover 42, and the wire harness 43.

The lifting mechanism 30 of the seat 20 is operated by an operation switch 44. By operating the operation switch 44, the seat body 32 is moved from the storage position P1 (see fig. 2) of the vehicle interior 12 to the getting on/off position P2 (see fig. 8) of the vehicle exterior 13 through the opening 15. That is, the seat 20 is a so-called elevating seat. Next, the seat 20 will be described as an "up-down seat 20". The loading/unloading position P2 is also referred to as a swing-out position P2.

Returning to fig. 1, the seat body 32 has: a seat 33 attached to the lifting mechanism 30; and a backrest 34 rising from a rear end of the seat 33. The seat body 32 has a function of electrically tilting the seat back 34 forward and backward.

As shown in fig. 4 and 5, the leg portion 35 is a member forming a lower portion of the liftable seat 20. Specifically, the leg portion 35 includes a left guide portion 45 and a right guide portion 45 fixed to the top portion 28b of the ridge portion 28. Further, the leg portion 35 includes: a guide rail 4 provided on the left guide portion 45 and the right guide portion 45, and a slider 47 movably supported on the left guide rail 46 and the right guide rail 46.

The left guide portion 45 and the right guide portion 45 extend in the vehicle front-rear direction at the top portion 28b of the raised portion 28. In addition, the guide rail 46 is provided in the left guide portion 45 and the right guide portion 45. Therefore, the left guide rail 46 and the right guide rail 46 extend in the vehicle front-rear direction.

The front-rear sliding portion 36 is attached to the slider 47 of the left guide rail 46 and the slider 47 of the right guide rail 46.

The front-rear sliding portion 36 is attached with a screw nut 48 on the lower surface. The screw nut 48 is rotatably connected to the screw 49. The screw 49 is connected to a front-rear slide motor (not shown). Therefore, the screw 49 is rotated by the forward/backward slide motor, so that the forward/backward slide portion 36 moves in the vehicle forward/backward direction as indicated by arrow a together with the screw nut 48. The vehicle front-rear direction is the extending direction of the left side guide portion 45 and the right side guide portion 45.

The front-rear sliding portion 36 is formed of a flat plate material, and a circular opening 51 (see fig. 2) is formed on the left side. The front-rear sliding portion 36 is horizontally disposed in a state of being attached to the slider 47 of the left guide rail 46 and the slider 47 of the right guide rail 46. The opening 51 (see fig. 2) opens to the left of the front-rear slide portion 36. The rotating portion 37 is attached around the opening 51.

As shown in fig. 2 and 4, the rotating portion 37 includes: a fixed ring 52 attached to the front-rear sliding portion 36; a rotating ring 53 supported by the stationary ring 52; a rotating motor 54 that drives the rotating ring 53; and a spin base 55 provided at the spin ring 53.

The fixed ring 52 is formed in a ring shape along the periphery of the opening 51 of the front-rear sliding portion 36. The rotating ring 53 is rotatably supported by the stationary ring 52 through a bearing. The rotating ring 53 has a ring gear 53a formed on the outer periphery thereof. The pinion of the rotating electrical machine 54 meshes with the ring gear 53 a.

The rotating electric machine 54 is attached to a portion of the lower surface 36a of the front-rear sliding portion 36 that faces the rear inclined portion 28c of the raised portion 28.

Here, a space 57 is formed between the rear inclined portion 28c of the raised portion 28 and the liftable seat 20. The rotating electric machine 54 is disposed in the space 57 so as to project from the lower surface 36a of the front and rear sliding portions 36 to the rear inclined portion 28c side.

By disposing the rotating motor 54 using the space 57, the liftable seat 20 can be lowered to be close to the raised portion 28. Accordingly, when the liftable seat 20 is located at the storage position (i.e., the attachment position) P1, the height H1 from the upper surface of the seat 33 to the leg 35 can be kept small. That is, the height position P3 of the upper surface of the seat 33 is suppressed to be low.

The pinion gear is rotated by the rotating electric machine 54, so that the ring gear 53a is rotated in the direction indicated by the arrow B. A spin base 55 is attached to the spin ring 53.

As shown in fig. 4 and 5, the spin base 55 includes: a base portion 61; brackets 62 provided on the left and right sides of the base portion 61; bearings 63 provided on the left bracket 62 and the right bracket 62; and a reinforcing portion 64 provided in the base portion 61.

Further, the spin base 55 includes: guide rails 65 provided on the left and right sides of the base portion 61 (the left guide rail 65 is not shown); a slider 66 movably supported by the left guide rail 65 and the right guide rail 65; and a control section 67 provided behind the base section 61.

The control Unit 67 is a so-called ECU (electronic control Unit).

The base portion 61 is attached to the upper end portion 53b of the rotating ring 53. Therefore, the rotating portion 37 is disposed above the front-rear sliding portion 36. The rotating portion 37 is supported to be rotatable in the direction indicated by the arrow B with respect to the front-rear sliding portion 36.

A bracket 62 is attached to the base portion 61 at the left and right sides. Bearings 63 are rotatably supported at the front portions of the left bracket 62 and the right bracket 62.

That is, the left bearing 63 is provided in front of the left bracket 62. The left bearing 63 protrudes outward from the left bracket 62. The right bearing 63 is provided in front of the right bracket 62. The right-hand bearing 63 projects outwardly from the right-hand bracket 62.

The elevating portion 38 is supported by the left bearing 63 and the right bearing 63 so as to be movable in the front-rear direction of the seat body 32.

The base portion 61 has an opening 72 formed on the left side. The opening 72 is formed in a circular shape along the rotating ring 53. The center of the opening 72 is a rotation center 74 of the rotating portion 37. That is, the rotation center 74 of the rotating portion 37 is positioned on the left side of the base portion 61 (one side in the width direction of the seat body 32).

Further, the base portion 61 is provided with a reinforcement portion 64 on the right side (the other side in the width direction of the seat body 32). The reinforcing portion 64 is disposed on a straight line (virtual straight line) 76 connecting the rotation center 74 of the rotating portion 37 and the right bearing 63.

The reason why the reinforcing portion 64 is disposed on the straight line 76 will be described in detail later.

Further, guide rails 65 are provided on the left and right sides of the base portion 61. The left guide rail 65 and the right guide rail 65 extend in the front-rear direction of the base portion 61. A slider 66 is movably supported on the left rail 65 and the right rail 65.

The elevating unit 38 is attached to the left slider 66 and the right slider 66.

As shown in fig. 3 and 4, the elevating unit 38 includes a rear elevating base (second elevating base) 81, a front elevating base (first elevating base) 82, a link unit 83, an elevating motor 84, and a screw 85.

The rear elevating base 81 is mounted on the left slider 66 and the right slider 66 of the rotating base 55. The rear elevation base 81 is provided on the rear portion 38a of the elevation part 38 (i.e., the other side in the moving direction of the elevation part 38).

Further, a screw nut 86 is attached to the rear elevating base 81. The screw nut 86 is rotatably connected to the screw 85. The screw 85 is connected to the elevating motor 84. The elevating motor 84 is mounted on the rear portion 37a of the rotating portion 37. The rear elevation base 81 is moved in the front-rear direction (the direction indicated by the arrow C) of the elevation part 38 together with the screw nut 86 by rotating the screw 85 by the elevation motor 84.

The elevating motor 84 is disposed such that the axis 87 of the elevating motor 84 is orthogonal to the moving direction (the direction indicated by the arrow C) of the elevating unit 38. In other words, the axis 87 of the elevating motor 84 is arranged along the width direction of the elevating unit 38. In addition, in a state where the liftable seat 20 is stored (the state shown in fig. 3), the lifting motor 84 is disposed on the rear side of the liftable portion 38 (i.e., on the other side in the moving direction of the liftable portion 38).

Therefore, in the state where the liftable seat 20 is stored, a large space (space)89 can be secured in the moving direction of the liftable portion 38. This can improve the degree of freedom in determining the arrangement position (design) of the components of the liftable seat 20.

In addition, the rear elevation base 81 is connected to the link unit 83. The link unit 83 has a left upper link 92, a left lower link 93, a right upper link 92, and a right lower link 93.

A rear end portion of the left upper link 92 and a rear end portion of the left lower link 93 are rotatably connected to a left end portion of the rear lift base 81. The rear end of the right upper link 92 and the rear end of the right lower link 93 are rotatably connected to the right end of the rear lift base 81. That is, the rear elevation base 81 is provided at the rear portion 38a of the elevation part 38.

The rear lift base 81 has a rear base center portion 81a connecting the left and right end portions. The rear base center portion 81a is formed flat and horizontally arranged. The rear base center portion 81a is disposed at a position having the same height as the lower portion of the lifter motor 84 in the state where the lifter seat 20 is stored (see fig. 3). Therefore, the rear base center portion 81a is disposed in a state of being lowered downward toward the rotating portion 37 (specifically, toward the base portion 61). The rear base center portion 81a is horizontally arranged along the upper side of the rotating portion 37 (base portion 61) in the state where the liftable seat 20 is stored.

By disposing the rear raising/lowering base 81 along the upper side of the rotating portion 37 in this manner, the height dimension of the raising/lowering portion 38 can be reduced. Therefore, when the liftable seat 20 is located at the storage position P1, the height H1 from the upper surface of the seat 33 to the leg 35 can be kept small. Thus, the height position P3 of the upper surface of the seat 33 can be kept low.

That is, when the liftable seat 20 is located at the storage position P1, the liftable seat 20 can be thinned.

Further, the front end portion of the left upper link 92 and the front end portion of the left lower link 93 are rotatably connected to the left end portion of the front lifting base 82. The front end of the right upper link 92 and the front end of the right lower link 93 are rotatably connected to the right end of the front lifting base 82. That is, the front elevation base 82 is provided on the front portion 38b of the elevation part 38 (one side in the moving direction of the elevation part 38).

That is, the rear elevating base 81 and the front elevating base 82 of the elevating unit 38 are connected by the link unit 83. The left lower link 93 is supported by the left bearing 63 so as to be movable in the front-rear direction of the seat body 32. The right lower link 93 is supported by the right bearing 63 so as to be movable in the front-rear direction of the seat body 32.

In this state, the screw 85 is rotated by the lifting motor 84, whereby the lifting unit 38 can be moved in the front-rear direction of the seat body 32 as indicated by an arrow C.

That is, the elevating motor 84 is a power unit that moves the elevating unit 38 in the direction indicated by the arrow C.

The front lifting base 82 has a front base center portion 82a connecting the left and right end portions. The front base center portion 82a is formed flat and horizontally arranged.

The front base center portion 82a is disposed in front of the base portion 61 in a state where the liftable seat 20 is stored. That is, the base portion 61 and the front base center portion 82a are arranged in the front-rear direction of the seat body 32. The base portion 61 and the front base center portion 82a are arranged so as not to overlap in the vertical direction (see fig. 2).

In other words, the base portion 61 and the front base center portion 82a are arranged substantially horizontally (i.e., at the same height). Therefore, the front base center portion 82a (i.e., the elevating portion 38) can be lowered toward the rotating portion 37.

Accordingly, when the liftable seat 20 is located at the storage position P1, the height H1 from the upper surface of the seat 33 to the leg 35 can be further reduced. Therefore, the height position P3 of the upper surface of the seat 33 can be kept lower.

That is, when the liftable seat 20 is located at the storage position P1, the liftable seat 20 can be further thinned.

As shown in fig. 2, the raised portion 28 of the floor panel 16 of the vehicle 10 located below the liftable seat 20 bulges upward. The fuel tank 18 is disposed in a space 29 below the raised portion 28.

On the other hand, when the liftable seat 20 is located at the storage position P1, the height H1 from the upper surface of the seat 33 to the leg 35 can be kept small. Therefore, the height position P3 of the upper surface of the seat 33 can be kept low. Accordingly, the height position P3 of the upper surface of the seat 33 can be kept low in the state where the liftable seat 20 is attached to the raised portion 28 of the vehicle 10.

Accordingly, when the seat body 32 is moved from the storage position P1 in the vehicle compartment 12 to the loading/unloading position P2 (see fig. 8) outside the vehicle compartment 12, the seat body 32 can be smoothly moved to the loading/unloading position P2. That is, the liftable seat 20 can be applied to the vehicle 10 in which the raised portion 28 is formed.

In addition, in the state where the liftable seat 20 is stored, the 2 nd space 95 can be secured between the front edge 61a of the base portion 61 and the rear edge 82b of the front base center portion 82a (see also fig. 3). The 2 nd space 95 will be described in detail later. The elevating portion 38 supports an outer slide portion 39.

As shown in fig. 3 and 4, the outer slide portion 39 has a left side portion 39a and a right side portion 39 b. The front portion of the left side portion 39a is attached to the left end portion of the front elevation base 82 so as to be movable in the direction indicated by the arrow D. The front portion of the right side portion 39b is attached to the right end portion of the front lifting base 82 so as to be movable in the direction indicated by the arrow D.

That is, the outer slide portion 39 is attached to the left and right end portions of the front lifting base 82 so as to be movable in the direction indicated by the arrow D. The direction indicated by the arrow D is the same direction as the moving direction of the lifting unit 38 (the direction indicated by the arrow C).

Further, the outer slide portion 39 has: a rack 98 provided on the right side portion 39 b; and an outer slide motor (slide motor) 101 connected to the rack 98 via a pinion 99.

As shown in fig. 6, the outer slide motor 101 is attached to the front base center portion 82a of the front lifting base 82 via an attachment bracket 102. The outer slide motor 101 is disposed in the No. 2 space 95 between the front edge 61a of the base portion 61 and the rear edge 82b of the front base center portion 82a in a state where the liftable seat 20 is stored at the storage position P1 (see fig. 2).

In this state, the outer slide motor 101 is disposed such that the axis 104 of the outer slide motor 101 is along the moving direction of the lifting unit 38 (i.e., the direction indicated by the arrow C). The outer slide motor 101 is disposed at a height equal to the base portion 61 and the front base center portion 82 a.

A pinion gear 99 is mounted to an output shaft of the outer slide motor 101. The pinion 99 is meshed with the rack 98. Therefore, the outer slide portion 39 can be moved in the front-rear direction (the direction indicated by the arrow D) of the seat body 32 by rotating the pinion gear 99 by the outer slide motor 101.

In this way, the outer slide motor 101 is disposed at the same height as the front elevation base 82 and the spin base 55 by the 2 nd space 95 between the base portion 61 and the front base center portion 82 a. Therefore, the thickness dimension H1 (see fig. 2) of the liftable seat 20 can be suppressed to be small, and the liftable seat 20 can be thinned.

However, when the height of the liftable seat 20 is reduced, it is conceivable that the seat 33 sinks to interfere with the outer slide motor 101 when the occupant sits on the seat 33 (see fig. 2) of the seat body 32.

In contrast, the outer slide motor 101 is disposed at a height equal to the base portion 61 and the front base center portion 82a by the 2 nd space 95. Therefore, the outer slide motor 101 can be disposed below apart from the seat 33. Accordingly, when the occupant sits on the seat 33, which is sunk, can be prevented from interfering with the outer slide motor 101.

As shown in fig. 3 and 4, the seat body 32 is attached to the outer slide portion 39. That is, the seat body 32 is connected to the upper side of the elevating portion 38 via the outer slide portion 39.

The rack 98 is moved in the front-rear direction of the seat body 32 by the outer slide motor 101, so that the seat body 32 is moved in the front-rear direction as indicated by an arrow D together with the rack 98.

Next, an example in which the seat body 32 of the liftable seat 20 is moved to the getting on/off position P2 (see fig. 8) outside the vehicle 13 by the lifting mechanism 30 will be described with reference to fig. 3, 7, and 8.

As shown in fig. 3, the forward/backward sliding portion (first sliding portion) 36, the rotating portion 37, the raising/lowering portion 38, the outer sliding portion 39, and the respective portions 36 to 39 and 32 of the seat main body 32 are moved to predetermined positions behind the vehicle as indicated by an arrow a by driving of the forward/backward sliding motor.

Next, the raising and lowering unit 38 starts moving forward in the vehicle. Then, the rotation portion 37, the ascending and descending portion 38, the outer slide portion 39, and the respective portions 37 to 39 and 32 of the seat main body 32 start rotating as indicated by arrow B by driving of the rotating motor 54. Further, the raising and lowering portion 38 is moved rearward of the seat body 32. The seat body 32 faces the opening 15 (the state shown in fig. 7).

As shown in fig. 7, the lifting mechanism 30 is disposed in a state where the seat body 32 (see fig. 3) faces the opening 15. In this state, the outer slide motor 101 (see fig. 8) is driven. The outer slide portion 39 and the seat body 32 start to move horizontally as indicated by an arrow D from the opening portion 15 of the vehicle 10 to the vehicle exterior 13 by driving of the outer slide motor 101.

As shown in fig. 8, the outer slide portion 39 and the seat body 32 (see fig. 3) move to the outside 13 of the vehicle. Further, the elevating motor 84 is driven to move the elevating unit 38 from the opening 15 of the vehicle 10 to the outside 13 of the vehicle as indicated by an arrow C. The front elevation base 82 is lowered in accordance with the movement of the elevation part 38. The seat body 32 is lowered together with the front lifting base 82 and disposed at the getting-on/off position P2.

As shown in fig. 9, a first movable wire cover 41 is attached to the rotating portion 37 and the elevating portion 38. The first movable wire cover 41 includes: a first fixed bracket 105 attached to the fixed end portion (one end portion) 41a, and a first movable bracket 106 attached to the movable end portion (the other end portion) 41 b.

The first stationary bracket 105 is attached to a front portion 61b of the base portion 61 of the rotating portion 37, which is located in front of the rotating ring 53. The first movable carriage 106 is attached to the rear elevating base 81 of the elevating section 38.

The movable end 41b is mounted to be movable relative to the fixed end 41 a.

Here, as shown in fig. 7, the rotating portion 37, the elevating portion 38, the outer sliding portion 39, and the respective portions 36 to 39 and 32 of the seat body 32 (see fig. 3) of the elevating seat 20 rotate as indicated by arrow B. In this state, as shown in fig. 9, the fixed end portion 41a is located at a position near the front of the liftable seat 20. The movable end 41b is located behind the fixed end 41a and at the rear of the liftable seat 20.

The first movable wire cover 41 is formed to be foldable in the horizontal direction over the entire region from the fixed end 41a to the movable end 41 b. The first movable wire cover 41 is formed such that a folded-back portion (first folded-back portion) 41c folded back is folded back in only one direction (specifically, only in the horizontal direction) at a constant radius, and a tank chain (registered trademark) is used, for example.

Further, a second movable wire cover 42 is attached to the elevating portion 38 and the outer slide portion 39. That is, the second movable wire cover 42 includes: a second fixing bracket 107 attached to the fixing end portion (one end portion) 42 a; and a second movable bracket 108 attached to the movable end portion (the other end portion) 42 b.

The second fixing bracket 107 is mounted on the front elevating base 82. The second movable bracket 108 is attached to the left side portion 39a of the outer slide portion 39.

The movable end 42b is mounted movably relative to the fixed end 42 a.

In a state where the liftable seat 20 is stored at the storage position P1 (see fig. 2), the fixed end 42a of the second movable wire cover 42 is positioned at the front portion 20c of the liftable seat 20. The movable end 42b is located rearward of the fixed end 42 a.

Similarly to the first movable wire cover 41, the second movable wire cover 42 is formed to be foldable in the horizontal direction over the entire region from the fixed end 42a to the movable end 42 b. The second movable wire cover 42 is formed such that a folded-back portion (second folded-back portion) 42c folded back is folded back in only one direction (specifically, only in the horizontal direction) at a constant radius, and a tank chain (registered trademark) is used, for example.

The folded portion 42c of the second movable wire cover 42 is disposed on the getting-on/off position P2 (see fig. 8) side with respect to the folded portion 41c of the first movable wire cover 41. In other words, the folded portion 42c is disposed on the front side of the elevating portion 38 with respect to the folded portion 41 c.

The first movable wire cover 41 is attached to the rotating portion 37 and the lifting portion 38. Further, the second movable wire cover 42 is attached to the elevating portion 38 and the outer slide portion 39.

Here, when the seat body 32 is moved from the vehicle compartment 12 to the vehicle exterior 13 (see fig. 8), the outer slide portion 39 moves in the direction indicated by the arrow C1 with respect to the raised/lowered portion 38. Therefore, the movable end 42b of the second movable wire cover 42 moves in the direction indicated by the arrow C1.

On the other hand, when the seat body 32 is moved from the outside 13 to the cabin 12, the raising and lowering portion 38 moves in the direction indicated by the arrow C2 (see fig. 8) with respect to the outer slide portion 39. Therefore, the movable end 41b of the first movable wire cover 41 moves in the direction indicated by the arrow C2.

Then, the folded portion 42c of the second movable wire cover 42 is disposed in front of the folded portion 41c of the first movable wire cover 41. Therefore, when the lift seat 20 is moved from the vehicle cabin 12 to the vehicle exterior 13, the folded portion 42C of the second movable wire cover 42 moves in the direction indicated by the arrow C3 in advance of the folded portion 41C of the first movable wire cover 41.

Accordingly, the folded portion 42c of the second movable wire cover 42 can be prevented from interfering with the folded portion 41c of the first movable wire cover 41.

On the other hand, when the lift seat 20 is moved from the outside 13 to the cabin 12, the folded portion 41C of the first movable wire cover 41 moves in the direction indicated by the arrow C4 (see fig. 8) in advance of the folded portion 42C of the second movable wire cover 42. Accordingly, the folded portion 41c of the first movable wire cover 41 and the folded portion 42c of the second movable wire cover 42 can be prevented from interfering with each other.

Here, the first fixed bracket 105 and the second movable bracket 108 are disposed adjacent to each other. Therefore, the operation of attaching the first fixed bracket 105 to the front portion 61b of the base portion 61 and the operation of attaching the second movable bracket 108 to the left portion 39a of the outer slide portion 39 can be efficiently performed. Accordingly, the operation efficiency in assembling the wire harness 43 is improved.

As shown in fig. 8, the wire harness 43 extends rearward of the outward sliding portion 39 from the movable end 41b of the first movable wire cover 41. One end of the harness 43 extending rearward is connected to the control unit 67.

The harness 43 extends from the fixed end 41a of the first movable wire cover 41 to the fixed end 42a of the second movable wire cover 42. The harness 43 extends from the movable end 42b to the outside through the inside of the second movable wire cover 42.

The wire harness 43 is supported by the first movable wire cover 41 and the second movable wire cover 42 so as to be guided by the first movable wire cover 41 and the second movable wire cover 42. The wire harness 43 is connected to the control unit 67, the rotating motor 54, the elevating motor 84, the outer slide motor 101, and the like.

As shown in fig. 9 and 10, the movable wire covers 41 and 42 are folded back in the horizontal direction in a state where the wire harness 43 is supported by the first movable wire cover 41 and the second movable wire cover 42 so as to be guided by the first movable wire cover 41 and the second movable wire cover 42.

Specifically, in the state where the liftable seat 20 is stored, the first movable wire cover 41 is horizontally folded back so as to be formed in a J-shape in plan view, and in this state, the distance dimension L1 from the movable end 41b to the folded back portion 41c of the first movable wire cover 41 is larger than the distance dimension L2 from the fixed end 41a to the folded back portion 41 c.

Therefore, when the movable end 41b moves toward the folded portion 41c, the foldable area of the first movable wire cover 41 can be secured to be long. This can ensure a large amount of movement of the movable end 41 b. Since the movable amount of the movable end 41b can be secured to a large extent, the moving amount of the raising and lowering unit 38 can be secured.

In this state, the distance L3 from the movable end 42b to the folded portion 42c of the second movable wire cover 42 is greater than the distance L4 from the fixed end 42a to the folded portion 42 c.

Therefore, when the movable end 42b moves toward the folded portion 42c, the foldable area of the second movable wire cover 42 can be secured to be long. This can ensure a large amount of movement of the movable end 42 b. Since the movable amount of the movable end portion 42b can be secured large, the moving amount of the outer slide portion 39 can be secured.

In this way, since the movement amount of the raising and lowering unit 38 is ensured and the movement amount of the outer slide unit 39 is ensured, the movement amount of the raising and lowering seat 20 can be ensured.

Here, in the state where the liftable seat 20 is stored, the movable end 42b of the second movable wire cover 42 is adjacent to the movable end 41b of the first movable wire cover 41 in the width direction of the seat body 32. The folded portion 42c of the second movable wire cover 42 is disposed forward of the seat body 32 with respect to the folded portion 41c of the first movable wire cover 41. Further, the fixed end 42a of the second movable wire cover 42 is folded back to the folded-back portion 41c of the first movable wire cover 41. The folded portion 42c of the second movable wire cover 42 is disposed in a state of overlapping the folded portion 41c of the first movable wire cover 41 in the front-rear direction of the seat body 32.

Therefore, the width W1 of the first movable wire cover 41 and the second movable wire cover 42 can be kept small. Accordingly, the space for disposing the first movable wire cover 41 and the second movable wire cover 42 can be saved.

By saving the space for disposing the first movable wire cover 41 and the second movable wire cover 42, a large operation space can be ensured. Accordingly, convenience in assembling the first movable wire cover 41 and the second movable wire cover 42 can be ensured. Further, workability in assembling the first movable wire cover 41 and the second movable wire cover 42 is improved.

Referring back to fig. 7, the rotation center 74 of the rotating portion 37 (see also fig. 5) is located on the left side of the rotating portion 37 (one side in the width direction of the seat body 32). Further, the first movable wire cover 41 and the second movable wire cover 42 are disposed on the left side of the seat body 32. Therefore, a space (space)112 in which the components of the liftable seat 20 are arranged can be secured on the right side of the seat body 32. This can improve the degree of freedom in determining the arrangement position (layout) of the components of the liftable seat 20.

Further, the reinforcing portion 64 is provided on the right side of the rotating portion 37 (the other side in the width direction of the seat body 32) by the space (space) 112. This can improve the rigidity of the seat 20 by the reinforcement portion 64.

However, as shown in fig. 5, a large load is applied to the rotating ring 53 and the fixed ring 52 of the rotating portion 37 due to the rotating base 55, the elevating portion 38, the outer slide portion 39, and the seat body 32 of the rotating portion 37.

Further, large loads of the elevating portion 38, the outer slide portion 39, and the seat body 32 are applied to the left bearing 63 and the right bearing 63. The distance between the rotating portion 37 and the left bearing 63 is larger than the distance between the rotating portion 37 and the right bearing 63.

Therefore, the reinforcing portion 64 is disposed on a straight line 76 connecting the rotation center 74 of the rotating portion 37 and the right bearing 63. Therefore, the rotating portion 37 and the left bearing 63 can be efficiently reinforced by the reinforcing portion 64. This can improve the rigidity of the liftable seat 20.

Here, as shown in fig. 10, the first movable wire housing 41 and the second movable wire housing 42 are disposed in such a manner that the heights thereof are the same with each other. Therefore, the thickness dimension H2 of the first movable wire cover 41 and the second movable wire cover 42 can be suppressed to be smaller than in the case where the first movable wire cover 41 and the second movable wire cover 42 are arranged to overlap each other in the vertical direction.

Accordingly, the height H1 (see fig. 2) from the upper surface of the seat 33 to the leg 35 can be kept small. That is, when the liftable seat 20 is located at the storage position P1, the liftable seat 20 can be thinned.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the scope of the present invention.

For example, in the above-described embodiment, an example in which the liftable seat 20 is applied to the passenger seat of the vehicle 10 is described, but the present invention is not limited to this. For example, the liftable seat 20 may be applied to a rear seat of the vehicle 10 or the like.

In the above-described embodiment, the example in which the axis 87 of the elevating motor 84 is arranged so as to be orthogonal to the moving direction of the elevating unit 38 has been described, but the present invention is not limited to this. For example, the axis 87 of the elevating motor 84 may be inclined to intersect the moving direction of the elevating unit 38.

Claims (4)

1. A seat, having: a foot fixed to the floor; a first sliding part which is arranged above the leg part and is provided so as to be movable in the extending direction of the leg part; a rotating portion disposed above the first sliding portion and provided rotatably in the first sliding portion; an elevating unit provided in the rotating unit; and a seat body connected above the lifting portion via a second sliding portion, the seat body being movable between a storage position and a loading/unloading position,

a rotating base rotatably supported above the first sliding portion in the rotating portion, and a first elevating base provided in one of the elevating portions in a moving direction of the elevating portion, the rotating base and the first elevating base being arranged in a front-rear direction of the seat body in a state where the seat body is stored in the storage position and arranged so as not to overlap in a vertical direction,

a raised portion raised toward the seat is formed in a portion of the floor below the seat,

a rotating motor for rotating the rotating base is provided on a lower surface of the first sliding portion so as to avoid the protruding portion.

2. The seat according to claim 1,

the lifting part is provided with a lifting motor which moves the lifting part,

the lifting motor is configured in a way that the axis of the lifting motor is crossed with the moving direction of the lifting part,

the lift motor is disposed on the other side in the moving direction of the lift portion in a state where the seat body is stored in the storage position.

3. The seat according to claim 1 or 2,

the second lifting base provided on the other of the lifting units in the moving direction of the lifting unit is disposed along the upper side of the rotating unit in a state where the seat body is stored in the storage position.

4. A seat, having: a foot fixed to the floor; a first sliding part which is arranged above the leg part and is provided so as to be movable in the extending direction of the leg part; a rotating portion disposed above the first sliding portion and provided rotatably in the first sliding portion; an elevating unit provided in the rotating unit; and a seat body connected above the lifting portion via a second sliding portion, the seat body being movable between a storage position and a loading/unloading position,

a rotating base rotatably supported above the first sliding portion in the rotating portion, and a first elevating base provided in one of the elevating portions in a moving direction of the elevating portion, the rotating base and the first elevating base being arranged in a front-rear direction of the seat body in a state where the seat body is stored in the storage position and arranged so as not to overlap in a vertical direction,

a slide motor that moves the second slide portion has a height equal to that of the first elevation base and the rotation base in a state where the seat body is stored in the storage position, and is provided between the first elevation base and the rotation base.

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