JP2956540B2 - Automotive seat lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for elevating and lowering a seat for an automobile, and more particularly to a seat elevating apparatus suitable for getting on and off a disabled person or an elderly person.

[0002]

2. Description of the Related Art Heretofore, as this type of sheet lifting / lowering device, for example, one having a configuration as shown in FIG. 17 is known. This conventional sheet lifting / lowering apparatus 100 includes a turntable 101 installed horizontally on a floor, a pair of slide rails 102, 102 provided on the turntable 101, and the slide rails 102, 102.
Support 103 that can slide horizontally along the
And a hydraulic cylinder 107 for driving the link mechanism 105. The horizontal rotation operation by the turntable 101 and the support The combination of the horizontal movement by the table 103 and the swing operation by the link mechanism 105 allows the seat 104 to enter and exit through the slide door entrance 106 on the side of the body.

[0003]

However, in the above-mentioned conventional seat elevating device 100, since the link mechanism 105 and the like are arranged on the back of the seat 104, the reclining function of the seat 104 must be sacrificed. In addition, since the large lifting device 100 is completely exposed, not only the appearance of the room is spoiled, but also a special consciousness is given to a disabled person sitting on the seat 104 or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of such a conventional seat elevating device, and does not sacrifice a reclining function of the seat and is stored almost under the seat to deteriorate the appearance of the room. It is an object of the present invention to provide a seat elevating device which does not provide a seated person with special consciousness.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides
An automobile seat lifting device having the configuration described in the claims
Was. According to the vehicle seat lifting device according to claim 1,
The sheet is placed on a sheet holder, and is moved to a predetermined position through each operation of rotating, sliding, and swinging the sheet holder. For this reason, it is not necessary to attach a link mechanism directly to the seat as in the related art, and it is sufficient to place a seat including a normal seat cushion and a seat back.

Further, since the link mechanism conventionally mounted on the back surface of the seat back is disposed on the left and right sides of the seat, the seat back can be tilted backward, and accordingly, the conventional reclining mechanism for the seat is provided. The normal reclining function can be utilized as it is without sacrificing.

Further, since the two link mechanisms are arranged on the side of the seat, the rotary support, the slide rail and the runner can be arranged so that they can be accommodated in the lower part of the seat. The lifting device does not become exposed on the back surface of the seat back, so that the appearance is improved, the through-the-room property (through-the-way property) is improved, and the special consciousness of the occupant can be eliminated.

Further , the shape of the sheet holder is substantially L-shaped in side view.
The armrest is turned and stored because it has a shape
Make it easier to get on and off the seat from the side
There can in, and armrest by taking a seat after the armrest
The seat can be seated in a comfortable posture due to injury.

According to the second aspect of the present invention , if the armrest is tilted to a horizontal position and placed on the next seat in a bridging manner, the seat surfaces of both seats are connected in a bench seat shape. According to this, a disabled person or the like can easily move to the next seat without standing up side by side without having to stand up, so that the surrounding people can easily perform care. In addition, if it is in the use position, the holdability of the occupant is enhanced, and if it is in the horizontal position, the cramped feeling can be eliminated,
Can be selected according to the seated person.

[0010] According to a third aspect of the present invention, there is provided a vehicle seat elevating device.
According to the report, if the armrests are set up,
You can easily move from the side and tilt the armrest down
And hold it in the use position that projects forward.
You can sit in a comfortable position.

According to a fourth aspect of the present invention, there is provided an automobile seat elevating device.
According to this , the seat can be slid forward and backward independently of the slide of the seat holder, so that the operation at the time of sitting can be performed more easily, and more various seat positions can be set to further improve sitting comfort. can do.

According to a fifth aspect of the present invention, there is provided a vehicle seat elevating device.
According to this, the driving device is electrically driven, and there is no need to provide hydraulic piping as in the case where a hydraulic cylinder is used, and therefore, it is not necessary to consider the piping management associated with the rotation or movement of the seat. In addition, since the driving device is a driving source for operating the link mechanism, it is unnecessary except when the seat is swung, and thus there is no need to energize. Since the position where the seat needs to be swung (getting on and off position) is only when the seat is rotated in the getting on and off direction, it is not necessary to start the driving device in other positions, and the power supply circuit for that purpose is cut off. State is acceptable. According to this, since there is no need to energize when the seat is not in the direction of getting on and off, it is necessary to develop a configuration (long slide seat) capable of moving the seat over a wide range without considering wiring or piping. Can be. In addition,
The power supply connection timing can be set when the seat is rotated in the entry / exit direction, or when the seat is turned in the entry / exit direction and further slid to the front end position.

[0013] The vehicle seat lifting device according to claim 6
According to this , the seat can be arbitrarily moved to various positions, so that a seated person such as a handicapped person can be seated, for example, at the passenger seat position. By sitting next to the driver, a disabled person or the like can sit without feeling special consciousness and loneliness, which is particularly significant when the occupant is only two persons, such as a driver and a disabled person.

Further, if the passenger is moved to the rear row position and turned backward, it is possible to get on and off through the back door, and the entrance and exit can be arbitrarily selected together with the getting on and off via the side sliding door. Increase.

According to a seventh aspect of the present invention, there is provided a vehicle seat elevating device.
According to this, the seat can be easily moved between the front row position and the back row position while the seated person is sitting,
Its convenience is further enhanced.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment will be described. 1 and 2 show the appearance of an automobile seat S provided with the seat elevating device 1 of the present embodiment. FIG. 1 shows a seating state, and FIG. 2 shows a swinging state at the time of getting on and off. I have. In the figure, F denotes an indoor floor, E denotes a slide door entrance provided on the side of the vehicle, and ST denotes a step provided at the entrance E. LR is a long slide rail laid on the floor F in a long range from the front part to the rear part of the room, along which the seat S is substantially between the front row position of the passenger seat position and the rear row position of the rear seat. Can be moved.

The sheet lifting / lowering device 1 of this embodiment is incorporated mainly in the lower portion of the sheet S. As shown in FIG. 6, on the floor F, the long slide rails LR, L
The rotation support base 3 is slidably supported in the room front-rear direction (direction perpendicular to the paper surface) through the R. In the case of this example, the rotation support base 3 is fixed to the front row position where the seat S is fixed to the passenger seat position and to the side of the slide door entrance E by the long slide lock mechanism 40 (FIG. 9) described later. Three positions, a row position and a rear row position fixed to the rear seat position, can be arbitrarily selected and fixed. In the drawing, C indicates a floor carpet spread on the floor F, and CE indicates a trim for performing a decoration process between an opening terminal of the floor carpet C and the long slide rail LR.

The rotary support 3 comprises a base 3a, a rotary base 3b, and a rotary support 3c of a thrust bearing type interposed therebetween. Legs 3d, 3d are provided on the lower surface of the base 3a, and both legs 3d, 3d are provided.
Two support rollers 3e, 3e are attached to the lower part of the roller at appropriate intervals in the left and right directions. Each support roller 3e is fitted and supported on the long slide rail LR, and the rotation support base 3 is slidably supported. Each of the legs 3d, 3d has an overhanging edge 3f formed in a laterally overhanging shape, and since this overhanging edge 3f is inserted inside the upward bending edge of the long slide rail LR, each support 3d is supported. The roller 3e is prevented from coming off the long slide rail LR. Rotary support 3c
In order to increase the support rigidity of the rotating base 3b in the vertical direction, a two-layer structure in which an outer ring 3i is sandwiched between two inner rings 3g, 3g via a number of steel balls 3h to 3h is used. The rotating base 3b is fixed to the upper surface of the outer ring 3i. Rotating support base 3 constructed in this manner, a forward position in which the rotary base 3b sheet S is positively fixed, the lateral position is fixed sideways, retrospective positions rearward in a fixed 3 position arbitrarily A rotation lock mechanism for selecting and fixing is provided. This rotation lock mechanism will be described later.

Next, slide rails 4 and 4 having a U-shaped cross section are attached to both sides of the rotary base 3b in parallel at a predetermined interval. A runner 5 is slidably supported above the rotary support 3 via the slide rails 4 and 4. As shown in FIG. 3, the runner 5 is supported between the slide rails 4 and 4 in a bridging manner, and the slide rails 4 and 4 are supported by two support rollers 5a to 5a respectively attached to both side edges. The slide is supported. The runner 5 is provided with a slide lock mechanism described later, and is locked immovably at both a “front end position” where the slide rail 4 slides to the front end and a “rear end position” where the slide rail 4 retreats to the rear end. It has become. The front and rear end surfaces of both slide rails 4 and 4 are closed to serve as stoppers at the front and rear ends of the runner 5 in the sliding direction. A drive device 30 of the sheet lifting device 1 is attached to the lower surface at the center of the runner 5, and the drive device 30 will be described later.

A seat holder 7 is supported by the runner 5 via a pair of left and right four-bar linkages 6,6. The two link mechanisms 6 and 6 are respectively composed of a first link arm 6a and a second link arm 6b, and the lower end of the first link arm 6a on the near side in the drawing has a rear support roller 5a that slides and supports the runner 5; It is rotatably supported on the side edge of the runner 5 via a coaxial support shaft 6c. The lower end of the second link arm 6b on the rear side in the figure is rotatably supported on the rear end of the side edge of the runner 5 via a support shaft 6d. The sheet holder 7 includes two support pillars 7 formed by lowering left and right side walls 7a, 7a, which are substantially L-shaped as shown in the figure.
c, 7c, and are integrated, and both side walls 7a,
The sheet S is mounted in a receiving shape between 7a. The side wall portion 7a is located substantially along the side surfaces of the seat cushion Sb and the seat back Sa. Side walls 7a, 7
The rising portion a has a bag structure in which two side plates are fixed to face each other at a fixed interval, and the first and second link arms 6a and 6b of the link mechanism 6 are provided between both side plates.
Are inserted and are rotatably supported via support shafts 6e and 6f supported at both ends between both side plates. The operation of the pair of left and right link mechanisms 6, 6 attached between the runner 5 and the sheet holder 7 in this manner, that is, the rotation of the first and second link arms 6a, 6b causes the sheet holder 7 to move to the state shown in FIG. As shown, a position substantially above the runner 5 (hereinafter, also referred to as a “swing return position”) and FIG.
As shown in the figure, a position lower than the runner 5 by swinging forward of the runner 5 (hereinafter, also referred to as “swing position”)
You can move between.

Next, a driving device 30 for operating both link mechanisms 6, 6 is provided with an electric motor 31 as shown in FIG.
, A reduction gear train 32, a ball screw 33, and connection bars 34, 34 attached to the nut 33 a of the ball screw 33 so as to protrude laterally, and are mainly configured.
The output of the electric motor 31 is transmitted to the screw shaft 33 b of the ball screw 33 via the reduction gear train 32, whereby the nut 3
3a and eventually the connecting bars 34, 34 move in parallel back and forth. The distal ends of the connecting bars 34, 34 are fixed to the first link arms 6a of the link mechanism 6, respectively, as shown in FIG. Support shafts 36, 36 are provided in a cylindrical case 35 in which the ball screw 33 is provided in a protruding manner to the side, and the support shafts 36, 36 and a bracket (shown in the drawing) rotatably support the support shaft 36. The drive device 30 is suspended from the center lower surface of the runner 5 via an omission). According to the driving device 30 configured as described above, the two connecting bars 34,
34 moves in the front-rear direction, the first link arms 6a, 6a rotate in the front-rear direction about the support shaft 6c,
As a result, both link mechanisms 6 and 6 are operated, and the seat holder 7 swings back and forth as described above. The arc movement of the connecting bar 34 accompanying the rotation of the first link arm 6a is absorbed by the drive device 30 swinging up and down around the two support shafts 36, 36.

Next, the power supply of the electric motor 31 of the driving device 30 will be described. In the elevating device 1 of this example, only when the rotary support 3 is rotated to the sideways position when getting on and off and the runner 5 is slid to the front end position of the slide rails 4, that is, both link mechanisms 6, 6 And a power supply circuit for supplying electricity to the electric motor 31 only when it is necessary to swing the sheet S by operating the power supply. Specifically, a so-called junction connector is incorporated in a power supply circuit of the electric motor 31. As shown in FIG. 8, the mail 37a of the junction connector 37 is attached via a bracket 37b at a predetermined position on the floor F, in this case, near the step ST,
The pair of female 37c is attached to one side edge of the runner 5 via a bracket 38. The bracket 38 connects the two plate pieces 38a and 38b to a hinge 38c.
One of the plate pieces 38a to which the female 37c of the junction connector 37 is attached is rotatable up and down via a hinge 38c. Since the tension spring 38e is interposed between the plate piece 38a and the plate piece 38b, the plate piece 38a is constantly urged in the counterclockwise direction (the direction rotating downward in the figure).

On the other hand, a receiving base 39 having a certain length in the sliding direction of the runner 5 is attached to the lower surface of the slide rail 4 so as to extend laterally. According to such a configuration, when the runner 5 is returned to the rear (to the right in the drawing), one of the plate pieces 38a of the bracket 38 is rotated upward and rides on the receiving base 39. Become. On the other hand, in a state in which the runner 5 is slid to the left front end position in the drawing in a state where the rotation support base 3 is rotated to the horizontal position to swing the sheet S, one plate of the bracket 38 is moved. The piece 38a is disengaged from the front end of the receiving base 39 and is turned downward by the urging force of the tension spring 38e, whereby the female 37c faces the mail 37a. In this state, when the runner 5 is further slid forward to the front end position, the email 37a is sent to the email 37a.
At this time, the power supply circuit for driving the electric motor 31 is connected. Since the stopper 38d is attached to the back surface of the one plate 38a on the rotation base side, the angle of the one plate 38a with respect to the other plate 38b is kept constant when the plate 38 is rotated downward. Thus, the mail 37c is always brought into contact with the mail 37a at an appropriate angle.

When a "swing switch" (not shown) is operated to the swing side in this power supply circuit connection state, the electric motor 31 is started and the first link arms 6a, 6a are moved forward around the support shaft 6c. As a result, the sheet holder 7 and thus the sheet S swing and move to the “swing position”. Conversely, when the "swing switch" is operated to the swing return side, the electric motor 31 rotates in the reverse direction, and both the first link arms 6a, 6a and both the second link arms 6b, 6b are rotated rearward. S is returned to the rear, that is, the “swing return position” above the runner 5. In the process of returning the sheet S to the "rear end position" on the indoor side with the sheet S returned to the "swing return position", the runner 5 is also slid in the same direction, and the female 37c of the junction connector 37 is moved to the mail 3 position.
7a, thereby disconnecting the power supply circuit. When the runner 5 is further slid backward, the bracket 3
The one plate piece 38a of FIG. 8 comes into contact with the tip of the receiving base 39, is gradually rotated upward, and rides above the receiving base 39. As described above, one plate 38a of the bracket 38 is stored in a state of riding on the receiving base 39, and is damaged or has poor appearance due to interference with other parts as in the case where the bracket 38 is simply rotated downward. Consideration is given to avoid such problems.

Next, the long slide lock mechanism 40, the rotation lock mechanism 50, and the slide lock mechanism 60 will be described. As shown in FIG. 9, a total of three lock release levers 41,
51, 61 are provided, a lock release lever 41 of the long slide lock mechanism 40 and a lock release lever 51 of the rotation lock mechanism 50 are provided on the right slide rail 4 in the figure, and a slide is provided on the left slide rail 4. A lock release lever 61 of the lock mechanism 60 is provided. First, the lock release lever 41 of the long slide lock mechanism 40 is attached to the tip of a first rod 42 rotatably supported along the back surface of the slide rail 4 on the right side in the figure. The first rod 42 is urged to rotate in the locking direction by a torsion spring (not shown). on the other hand,
A third rod 44 is supported at substantially the center of the upper surface of the rotation base 3b so as to be rotatable in the front-rear direction via brackets 44a, 44a. A second rod 43 is provided between the rear end of the third rod 44 and the rear end of the first rod 42.
Are connected by At both ends of the second rod 43, substantially hook-shaped hook portions are provided, and the hook portions are hooked into locking holes of flange portions attached to the rear ends of the first and third rods 42, 44. Connected in state. For this reason, the third rod 44 rotates in conjunction with the first rod 42.

At the approximate center of the third rod 44, a plate piece 44
c is attached, and one end of a wire cable 45 is connected to the plate piece 44c. The wire cable 45 is drawn downward through a relief hole 46 provided at the center of the turntable 3b, and reaches one leg 3d (the indoor side) of the turntable 3. On the inner surface of the one leg 3d, a fourth rod 47 is provided with brackets 47a, 47a.
The fourth rod 4 is rotatably supported through
7, the other end of the wire cable 45 is connected.
A lock plate 47 is provided substantially at the center of the fourth rod 47.
b inserts a pin (not shown) attached to the fourth rod 47 so as to project sideways into the elongated hole, and
7, and a torsion spring 47c is interposed between the leg 3d and the torsion spring 47c. Therefore, the fourth rod 47 moves the lock plate 47b downward as shown in the figure. That is, the long slide rail LR
Are urged in the direction to protrude toward the bottom surface. Lock holes 48 to 48 into which the lock plate 47b can be fitted are provided at three positions in the sliding direction on the bottom surface of the long slide rail LR corresponding to the front row position, the middle row position, and the rear row position of the seat. I have.

According to the long slide lock mechanism 40 constructed as described above, since the lock plate 47b is always protruded downward, the sheet S is kept in sliding contact with the bottom surface of the long slide rail LR. Is slid along the long slide rail LR, and when the seat S reaches the front row position, the middle row position, or the rear row position, the lock plate 47b is fitted into the lock hole 48 by the urging force of the torsion spring 47c and its own weight. The seat S is locked at a desired position.
When the sheet S is moved from the lock position to another position, when the lock release lever 41 is operated to rotate, the first rod 42 rotates, and therefore the third rod 44 rotates via the second rod 43. The power is transmitted to the fourth rod 47 via the wire cable 45. As a result, the fourth rod 47 rotates against the torsion spring 47c, so that the lock plate 47b is removed from the lock hole 48, whereby the lock is released and the sheet S can slide along the long slide rail LR. .

Next, the lock release lever 51 of the rotation lock mechanism 50 is rotatably supported on the front end face of the slide rail 4 via a bracket 52. The lock release lever 51 is urged to rotate in the lock direction by a torsion spring (not shown). One end of a wire cable 53 is connected to the lock release lever 51. When the lock release lever 51 is rotated in the lock release direction, the wire cable 53 is pulled. The other end of the wire cable 53 is connected to a lock plate 54. The lock plate 54 is attached to the front end of the turntable 3b via a support shaft 54a so as to be rotatable in the surface direction.
A forked hook portion 54b is formed at one end of the upper surface of the lock plate 54, and the hook portion 54b
Is connected to the other end of the wire cable 53. The lock plate 54 is urged to rotate in the clockwise locking direction by a tension spring 55 interposed between the lock plate 54 and the turntable 3b. A lock pin 54c is attached to the lower surface on the opposite side of the lock plate 54 so as to protrude downward. On the other hand, lock receiving plates 56 to 58 are attached to the upper surface of the base 3 a of the rotation support base 3 at three locations corresponding to the lock plates 54. These three lock receiving plates 56 to 58
Are located at positions where the lock pins 54c of the lock plate 54 can be locked at three positions in the rotation direction of the rotation base 3b corresponding to the front, side, and rear directions of the sheet S, respectively. Each of the lock receiving plates 56 to 58
Lock groove 56 for fitting and locking lock pin 54c
a, 57a, and 58a are mounted in a state where they face outward.

The rotation lock mechanism 50 thus configured
According to this, when the lock release lever 51 is not operated, the lock plate 54 is urged to rotate clockwise in the figure by the tension spring 55, and in this state, the seat S
Is rotated to reach, for example, a horizontal position, the lock pin 54c of the lock plate 54 is
And locks the rotation of the rotation base 3b so that the seat S is locked at the lateral position. To rotate the sheet S from this lateral position, the lock release lever 51 is rotated to rotate the lock plate 54 counterclockwise in the drawing against the tension spring 55. As a result, the rotation base 3b becomes rotatable again and the sheet S can be rotated. When the rotation of the lock release lever 51 is stopped, the torsion spring returns the lock release lever 51 to the lock direction. Therefore, the lock plate 54 is returned to the clockwise direction in the drawing. Can be.

Next, the lock release lever 61 of the slide lock mechanism 60 is attached to the front end of a rod 62 rotatably supported on the back of the other slide rail 4 via brackets 62a to 62a. This rod 6
A torsion spring 63 is also interposed between the slide rail 2 and the slide rail 4, whereby the rod 62 is urged to rotate counterclockwise in the figure. The rod 62 has three lock pins 6 at predetermined positions in the longitudinal direction.
4 to 66 are attached so as to protrude laterally. In the figure, the lock pin 64 at the foremost side is for locking the front end position of the sheet S, the lock pin 66 at the rearmost side is for locking the rear end position of the sheet S, and the intermediate lock pin 65 is provided.
Is for locking the intermediate position of the seat S. On the other hand, a lock plate 67 is mounted on the inner surface of the side wall of the runner 5 and above the rod 62. At the lower end of the lock plate 67, the lock pins 64-66
Are formed in the lock groove 67a.

According to the slide lock mechanism 60 configured as described above, when the lock release lever 61 is not rotated in the clockwise lock release direction in the drawing, the rod 62 is moved by the torsion spring 63 to the lock pins 64 to 6.
The sheet S is slid along the slide rails 4 and 4 in this state. For example, when the sheet S reaches the front end position, the lock groove 6 of the lock plate 67 is locked.
The lock pin 64 is fitted into 7a, whereby the sliding of the sheet S is prevented, and the sheet S is locked at the front end position. To move the sheet S from the front end position to the intermediate position, the lock release lever 61 is rotated in the lock release direction, and the rod 62 is rotated clockwise in the figure against the torsion spring 63. 64-6
6 with the lock groove 67 of the lock plate 67 facing downward.
If the lock pin 64 is removed from a, the sheet S can be slid again. When the rotation of the lock release lever 61 is stopped, the rod 62 is returned in the counterclockwise direction by the torsion spring 63, so that each of the lock pins 64-66
Is returned to the state of protruding to the side again. When the sheet S is moved to the intermediate position in this state, the lock pin 65 is fitted into the lock groove 67a of the lock plate 67, and the sheet S is locked at the intermediate position. To move from the front end position to the rear end position, the lock release lever 6
When the sheet S is moved to the rear end position while the release operation of the sheet 1 is performed, and then the operation of the lock release lever 61 is stopped, the lock pin 66 is fitted into the lock groove 67a and the sheet S
Is locked at the rear end position.

Next, the armrest will be described. As shown in FIGS. 1 and 2, two types of armrests 70 and 71 are provided on the side of the sheet S. The armrest 70 having a substantially flat plate shape on the right side as viewed from the occupant is a retractable type, and the armrest 71 having a bar shape on the left side is a swing-down type. As shown in FIG. 11, the swing-down armrest 71 is configured to be rotatable in the vertical direction on the left side wall 7a of the seat holder 7 and lockable in the horizontal use position.
As the lock mechanism and the lock release mechanism, those having a conventionally known configuration are used, and the description thereof is omitted because no particular change is required. In addition, as shown in FIG.
Instead of the swing-down armrest 71, a flip-up armrest 72 may be used.

As shown in FIG. 10, the right-side retractable armrest 70 rotates a substantially D-shaped frame 73 on the side of the seat holder 7 in the vertical direction via the support shafts 74a of the brackets 74, 74. It is movably supported, and a link arm 75 is interposed between one bracket 74 and the frame 73 as shown in the figure. This link arm 7
The lower end of 5 is rotatably supported by a bracket 74 via a support shaft 75a, and the upper end is provided with an engaging pin 75b, which is inserted into a long slot 73a formed in the frame 73. A knob 76a for grip is attached to the upper end of the frame 73, and the lock rod 76 is supported so as to be slidable in the front-rear direction (the left-right direction in the drawing). Since the compression spring 77 is interposed between the lock rod 76 and the frame 73, the lock rod 76 is biased in a direction to protrude rearward (to the right in the drawing). The rear end of the lock rod 76 protrudes from the rear end of the frame 73 and is inserted into and removed from a lock hole 7b provided in the seat holder 7.

According to such a configuration, the armrest 70 is erected and the rear end of the lock rod 76 is inserted into the lock hole 7b on the seat holder 7 side, so that the arm rod 70 is locked at the use position in this erected state. Can be used as an armrest. If the knob 76a is gripped and the lock rod 76 is pulled forward, the rear end is pulled out from the lock hole 7b, so that the frame 73 and thus the armrest 70 can be tilted to the side. The armrest 70 is held at the horizontal position by the engagement pin 75b of the link arm 75 abutting on the tip of the long slot 73a. When the armrest 70 is tilted to the horizontal position, the armrest 70 is almost hung over the adjacent seat, and the occupant can go sideways through the armrest 70 in the horizontal state. According to this, since it is possible to move to the next seat without standing up, care for the handicapped or elderly is particularly easy. In FIGS. 1 and 2, the folding armrest 70 is disposed on the right side, and the swing-down armrest 71 is disposed on the left side.
As shown in FIG. 3, a configuration in which a folding armrest 70 is disposed on both sides may be adopted.

Next, the sheet lifting device 1 of this embodiment is provided with a retractable step 80. As shown in FIG. 12, substantially L-shaped stays 81, 81 are provided at the front of the sheet holder 7.
Are mounted so as to protrude forward, and both stays 8
Two large and small step plates 82, 83 are mounted between the first and the first 81 so as to be rotatable vertically. A large step plate 82 on the front side (left side in the figure) includes stays 81,
A small step plate 83 on the rear side is rotatably supported via a support shaft 85 behind the support shaft 84 between the front ends of the support shafts 81. I have. A torsion spring 86 is mounted around the support shaft 85, and the torsion spring 86 urges the small step plate 83 on the rear side in a direction of projecting forward. The front edge of the rear small step plate 83 is disposed so as to be superimposed on the rear part of the front large step plate 82, so that the large step plate 82 is indirectly extended in a direction in which it projects substantially horizontally. It is being rushed. On the back surface of the large step plate 82, a handle 82a for drawing out is provided as shown in FIG.

According to the step 80 configured as described above, when the large step plate 82 is pulled out to the use position indicated by the solid line in FIG. 12, the small step plate 83 is also rotated forward by the urging force of the torsion spring 86. And is placed on the rear portion of the large step plate 82. The occupant can use the large area formed by the two large and small step boards 82 and 83 as steps for placing his / her feet. When not used as a step, the large step plate 82 can be stored by rotating it upward. When the large step plate 82 is rotated to the position shown by the two-dot chain line in the figure against the indirect action of the torsion spring 86,
The small step plate 83 is also rotated upward against the torsion spring 86. Since the pivots of the two step plates 82 and 83 are deviated, the small step plate 83 has its front edge connected to the large step plate 8.
It is pivoted upward while slidingly contacting the surface of No. 2 and is finally folded and stored on the large step plate 82. In this way, the two step plates 82 and 83 can be used in a connected state at the time of use, while they are compactly stored so as to be almost overlapped at the time of storage. As shown in FIGS. 1 and 2, a notch portion 82 b is formed on the rotation base side of the large step plate 82, and the foot is placed on the floor F at the foot of the occupant in the storage state of the step 80. Ample space is secured, and in this regard, it is possible to sit in a comfortable position.

The sheet lifting / lowering device 1 configured as described above
According to this, the seat S can be moved between the front row position and the rear row position substantially at the passenger seat position, is held at three positions of the front row, the middle row, and the rear row, and faces forward, sideways and rearward at each position. 3 positions can be arbitrarily selected. Therefore, as shown in FIG. 1, in a state where the sheet S is positioned in the middle row position and rotated sideways, the sheet S is rotated in a state where the lock release lever 61 of the slide lock mechanism 60 is rotated in the lock release direction. When sliding forward along the slide rails 4 and 4, the female 37c of the junction connector 37 is brought into contact with the mail 37a on the floor F and the power supply circuit is connected.

At this slide front end position, when the swing switch is turned on to the swing side, the driving device 30 is activated, and the operation of the link mechanisms 6 and 6 causes the sheet holder 7 and thus the sheet S to swing forward, so that the sheet is moved. S is moved out of the room through the slide door entrance E from the room as shown in FIG. In this state,
A disabled person or the like can easily sit on the seat S. When the swing switch is turned on to the swing return side in the seated state, the driving device 30 is activated in the reverse direction, and both link arms 6a and 6b of the link mechanism 6 are rotated in the rising direction,
As a result, the sheet holder 7 swings backward, and the sheet S is returned to the room. After the sheet S is returned to the front end position, the unlock lever 61 of the slide lock mechanism 60 is again rotated in the unlock direction to return the sheet S to the rear end position. When the sheet S retreats from the front end position, the female 37c of the junction connector 37 also retreats and is separated from the mail 37a, so that the power supply circuit of the drive device 30 is cut off. After the sheet S is returned to the rear end position, the unlocking lever 51 of the rotation lock mechanism 50 is rotated in the unlocking direction to rotate the sheet S from the side to the front. Locked to.

As described above, according to the sheet elevating device 1 of the present embodiment, it is sufficient that the sheet S is attached to the sheet holder 7 and the elevating device 1 is arranged below the sheet S. I have. This makes it possible to utilize the reclining mechanism as it is, unlike the conventional case in which a large-scale mechanism is attached to the back of the seat back. In addition, since the device is not exposed to the back of the seat back and a seat that is almost the same in appearance as other seats can be used, there is no need to give a special consciousness to the occupant, and the indoor appearance is improved. Does not impair. Further, since the seat S itself is mechanically independent of the elevating device 1, the normal seat S can be used almost as it is, so that a comfortable seat can be maintained.

The power supply circuit of the driving device 30 for giving a swing operation to the sheet lifting / lowering device 1 of this embodiment is connected via the junction connector 37 only when necessary, that is, when the sheet S is to be swung. Is not connected. From this, without taking into account the routing of the electrical wiring associated with the rotation or sliding of the sheet S, the routing of the hydraulic piping or the use of a hydraulic source when a hydraulic drive device (hydraulic cylinder) is used as in the prior art. The sheet S can be moved in a wide range (for example, a range from the front row position to the rear row position) or rotated at a large angle (for example, 360 °) without considering the installation.

In particular, as illustrated, the sheet S is placed in the front row,
By adopting a configuration that can be arbitrarily moved to the three positions of the middle row and the rear row, and the three positions of the front, side and rear can be arbitrarily selected at each position, for example, as shown in FIG. The sheet S provided with the device 1 can be used in various modes, and the sheet layout can be diversified.
FIG. 13 exemplifies the movable range of the seat S of the present invention, and does not limit the number of seats S that can be installed in the vehicle interior.

FIG . 13 (A) shows a layout in which the seat S is turned to the front and then moved to the front row position, that is, the passenger seat position, after getting in through the slide door entrance E on the side of the automobile. According to this, the occupant can be seated in the passenger seat, so that even if the occupant is only the occupant and the driver, the occupant can feel a special consciousness or loneliness. Without any difficulty, comfortable driving can be performed. Fig. 13 (B)
Indicates not only the case where the user gets in from the side sliding door entrance / exit E as described above, but also the case where a disabled person enters the vehicle via the back door entrance / exit at the rear of the automobile. That is,
After the seat S is moved to the rear row position along the long slide rail LR, the seat S is rotated backward to swing the seat S, so that the seat S can enter through the back door entrance / exit. However, in this case, the mail 3 of the junction connector 37 is located near the back door entrance.
7a needs to be arranged. As described above, entry from the back door entrance / exit can be selected, so that the user can easily sit on the seat S from the wheelchair in a place where the vehicle width direction is narrow. In addition, even when the driver gets in through the back door entrance, it can be moved to the middle row position or the front row position as described above via the long slide rail LR.

[0043]FIG.(C) is the most basic of the sheet S
The typical layout is shown. That is, the sliding door
After getting in through the entrance E, put the seat S in the middle row
This is the case where it is positioned in front of the vehicle. In addition, illustrated
Is omitted, but the seat S is
By rotating backward, facing the rear row seat
Can be a seat, also in this case special for occupants
Comfortable long distance without taste or loneliness
You can enjoy driving etc. further,FIG.
As shown in (D), the right side (driver's seat side)
By placing the sliding rail LR, the back door
After getting in from the entrance, move the seat S to the driver's seat.
It is also possible to adopt a configuration in which the disabled
Makes it easier for you to get into the driver's seat when driving.
I can. Although not shown, the driver's seat side
Slide trayLeLR and long slide on the passenger side
LR connected by a slide rail in the vehicle width direction.
With this, more diverse seat layouts can be realized.
You. As described above, the sheet lifting device 1 illustrated
Disabled person by combining slide rail LR
Etc. are in addition to the sliding door entrance E on the side of the car, and after the car
It is possible to get in from the back door entrance of some partsToBecome
No matter which boarding position you enter,
Can be arbitrarily selected in a wide range,
Value can be further increased.

The embodiment described above can be implemented with various modifications. For example, although not shown, a cushion slide rail for adjusting a seat position which is generally used between the seat holder 7 and the seat holder 7 is used. May be interposed. According to such a configuration, the sheet holder
Since the seat S can be slid independently of the slide 7 , the seating operation can be performed more easily, and more various seat positions can be set to further improve the sitting comfort.

Further, in the illustrated embodiment, a configuration has been described in which the sheet S provided with the sheet lifting / lowering device 1 is combined with the long slide rail LR to enable various sheet layouts. May be fixed to, for example, the middle row position. In order to solve this conventional problem, the present applicant has laid a long slide rail on the floor in a range from a front row position to a rear row position, and is capable of moving a sheet along the long slide rail and locking the seat at an arbitrary position. An object of the present invention is to provide an automobile seat having a possible configuration, and to provide an automobile seat capable of moving the seat along the above-mentioned long slide rail via the exemplified rotary support base 3 and being lockable at an arbitrary position. It is.

FIG . 14 shows an example of mounting a junction connector 120 which is connected to the power supply of the driving device 30 and which is different from the junction connector 37 described above. The junction connector 120 is also composed of a mail 121 and a mail 122. The mail 121 is sent to the step ST via the bracket 123.
On the floor F on the rear side (right side in the figure). On the other hand, the female 122 is attached to the front end of one of the slide rails 4 via a bracket 124. According to the junction connector 120, when the seat S (not shown) is rotated in the direction indicated by the arrow in the drawing to get on and off, the female 122 is brought into contact with the mail 121, and the drive device 30 is driven at this time. Power supply is connected. Although the stage before the sheet S is slid to the front end position in this way, the same operation and effect as described above can also be obtained by connecting the power source of the driving device 30 only when the sheet S is turned on and off. Can be obtained. Although not shown, mail installed on the floor F can be seen in a general power outlet in addition to a configuration in which the mail is always exposed on the floor F via the illustrated bracket 37b (123). In this case, the mail 121 can be stowed from the floor F only when necessary, so that the mail 121 can always be stored under the floor so as not to be in the way.

Next, in the above-described configuration, the sheet S can be moved along the long slide rail LR by a manual device. However, the long slide mechanism may be motorized by driving a motor. An example of such an electric long slide mechanism 110 is shown in FIGS.
Is shown in A motor 111 is installed on the floor F, and one end of a screw shaft 113 is connected to an output shaft of the motor 111 via a reduction gear box 112.
The gear box 112 is fixed so as to be sandwiched between brackets 116, whereby the gear box 112 and the motor 111 are fixed on the floor F. Screw shaft 113
Is arranged along the long slide rails LR, LR, and the other end is also rotatably supported on the floor F by a bearing 114. When the motor 111 is driven, the screw shaft 113 is rotated at a predetermined rotational speed. The rotation is controlled in both reverse directions. On the screw shaft 113,
A nut 115 forming a block body is mounted, and the rotation of the screw shaft 113 causes the nut 115 to move forward or backward at a predetermined speed. The nut 115 is fixed to the base 3a side of the rotary support 3 via a substantially box-shaped bracket 117 and an L-shaped bracket 118. Therefore, when the nut 115 moves due to the rotation of the screw shaft 113, the base 3a and thus the rotation support base 3 move integrally therewith, whereby the sheet S moves along with the elevating device 1 along the long slide rail LR. You. According to the electric long slide mechanism configured as described above, the seated person can freely move between the front row position and the rear row position simply by operating the switch without the help of the surroundings. The added value of the device 1 can be further increased.

[Brief description of the drawings]

[1] A sheet over preparative lifting device of the present invention, the sheet lifting device and the sheet is a perspective view showing a middle row position forward state.

FIG. 2 is a perspective view showing a state in which the seat lifting device is swung to move a seat from a slide door entrance / exit outside a room.

FIG. 3 is a perspective view of the sheet lifting / lowering device (excluding a rotation support base) in a state where the sheet is slid to a front end position.

FIG. 4 is a perspective view of the sheet elevating device in a state where the seat is swung.

FIG. 5 is a side view showing the operation of the seat elevating device.

FIG. 6 is a vertical cross-sectional view of a rotation support base of the sheet elevating device.

FIG. 7 is a perspective view of the driving device alone.

FIG. 8 is a side view of the runner, showing the operation of the junction connector on the female side.

FIG. 9 is an exploded perspective view of the rotation support base and the runner, and is an exploded perspective view of a long slide lock mechanism, a rotation lock mechanism, and a slide lock mechanism.

FIG. 10 shows a frame support structure of a retractable armrest,
(A) is a side view, (B) is a rear view.

FIG. 11 is a side view showing a swing-down armrest and a flip-up armrest.

FIG. 12 is a side view of a step.

13A and 13B are plan views showing layouts of various aspects of a seat, wherein FIG. 13A shows a case of moving to a side entry front row position, and FIG. 13B shows a case of moving to a rear entry front row position in addition to side entry. (C) shows the most basic case of the side entry middle row position, and (D) shows the case of the rear entry driver's seat movement.

FIG. 14 is a perspective view showing another embodiment of the junction connector.

FIG. 15 is a plan view showing an electric long slide mechanism.

FIG. 16 is a front view of the electric long slide mechanism.

FIG. 17 is a perspective view of a conventional sheet elevating device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet lifting / lowering apparatus (1st Example) 3 ... Rotation support stand 4 ... Slide rail 5 ... Runner 6 ... Link mechanism, 6a ... 1st link arm, 6b ... 2nd
Link arm 7: Sheet holder, 7a: Side wall 30: Drive device 37: Junction connector, 37a: Mail, 37
c: female 40: long slide lock mechanism 50: rotary lock mechanism 60: slide lock mechanism 70: armrest (retractable), 71: armrest (falling down) 80: step, 82: large step board, 83: small step Plate S: Sheet LR: Long slide rail

Continued on front page (72) Inventor Kazuo Aoyama 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Prefecture Inside Toyota Auto Body Co., Ltd. (72) Inventor Mineo Tanaka 100, Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Prefecture In-house (72) Inventor Yusuke Ito 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Toyota Auto Body Co., Ltd. (72) Inventor Takafumi Hijikata 100, Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Prefecture References JP-A-8-337137 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60N 2/00-2/54 B60P 3/00

Claims (7)

(57) [Claims] 1. A rotating support, a pair of left and right slide rails installed on the rotary support, a runner sliding along the slide rail, a sheet holder on which a sheet is placed, and left and right side walls of the sheet holder And a pair of left and right link mechanisms interposed between the section and the left and right sides of the runner for swinging the seat holder, and a vehicle seat elevating device including a driving device for driving the link mechanisms
, The left and right side walls of the sheet holder are seats of the sheet.
Side along the side of the cushion and the side of the seat back
It has a substantially L-shape when viewed, and is turned up and down on the left and right side walls.
An automotive seat elevating device with an armrest that can be taken out and stored . 2. The seat elevating device according to claim 1, wherein the armrest is centered on an axis along the front-back direction of the seat.
To be able to rotate up and down, stand up, and
It can be used by tilting it down
An automotive seat elevating device having a configuration that can be held . 3. The seat elevating device according to claim 1, wherein the armrest is centered on an axis along a width direction of the seat.
It can be turned up and down and can be stored standing upright,
Configuration that can be held in the use position where it can be tilted downward and project forward
And the automobile seat lifting device. 4. The seat elevating device according to claim 1, wherein a cushion slide rail is provided between the seat holder and the seat so that the front and rear positions of the seat can be adjusted. A seat lifting device for an automobile. 5. A sheet lifting device as claimed in any one of claims 1 to 4, characterized in that the power supply circuit of the drive device is configured to be connected to when rotating the sheet to passenger-facing Automotive seat lifting device. 6. The seat elevating device according to claim 1 , wherein a long slide rail extending from a front row position to a rear row position of the seat is laid on the floor, and the rotary support is moved along the long slide rail. An automobile seat elevating / lowering device, wherein the seat is raised and supported so that the position of the seat can be arbitrarily selected from three positions of a front row, a middle row and a rear row. 7. The vehicle seat elevating device according to claim 6 , wherein the rotary support is configured to be movable along a long slide rail by driving a motor.