JPH0939622A - Sliding/lifting device of seat in vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent movement of the whole stroke of a constitutional member of a lift mechanism at the time of sliding a seat between a regular position and a sliding position by providing a slide mechanism furnished with a fixing device for sliding to fix a seat installation base at the regular position or the sliding position freely to release. SOLUTION: It is possible to move a seat installation base 31 with a seat S1 along a rail constituted of an upper part link arm 52 in a storage state and a rail part 54a formed, on a lift plate 54 and continued on a straight line with the upper part link arm 52 in a storage state on a lift mechanism C1 by releasing fixture of the seat installation base 31 by a fixing device 40 for sliding. At this time, only the seat installation base 31 and the seat S1 moves their whole stroke between a revolving regular position and a sliding position, but a constitutional member of the lift mechanism C1 nover moves. Consequently, it is possible to lightly operate the seat S1 by small labor in case of manually sliding the seat S1 between the revolving regular position and the sliding position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat sliding / elevating apparatus mounted on a vehicle, and more particularly to a seat for a vehicle in which the seat can be slid toward a door opening and can be moved up and down through the door opening. It relates to a slide / lift device.

[0002]

2. Description of the Related Art Seat sliding in a vehicle of this type.
An elevating device is disclosed in, for example, Japanese Unexamined Patent Publication No. 7-89382, and includes a slide mechanism capable of sliding a seat supported with respect to a floor of a vehicle compartment between a fixed position and a sliding position in the front-rear direction of the seat. An elevating mechanism capable of lowering the seat below the slide position and raising the seat to the slide position is provided.

[0003]

By the way, in the above-mentioned device of Japanese Patent Laid-Open No. 7-89382, a rail provided along the front-rear direction of the seat on a rotary pedestal that can turn with respect to the floor of the passenger compartment. And a movable table mounted on the rail so as to be movable in the longitudinal direction and arranged at the lower part and the back of the seat, and a slide fixing device for releasably fixing the movable table at a fixed position or a slide position. A slide mechanism is adopted, and the movable table, a connection plate provided on the back of the seat back of the seat, a pair of link arms connecting the movable table and the connection plate, and a seat fixed to the front of the connection plate. It is equipped with a seat cushion and a lifting frame that supports the seat back, and is driven by a hydraulic cylinder that is arranged behind the seat back of the seat and drives one of the link arms. When the seat is slid between the fixed position and the slide position by the slide mechanism, the moving table of the slide mechanism and all the components of the lift mechanism are installed between the fixed position and the slide position of the seat. Move the stroke integrally. Therefore, a large amount of labor is required when manually sliding the seat between the fixed position and the sliding position. The present invention has been made to address the above-described problem, and an object thereof is to prevent the constituent members of the lifting mechanism from moving the entire stroke when the seat is slid between the fixed position and the sliding position by the sliding mechanism. To provide a seat slide / elevator for a vehicle.

[0004]

In order to achieve the above-mentioned object, in the present invention, a seat supported on the floor of a passenger compartment is slid in the longitudinal direction of the seat between a fixed position and a sliding position. A slide mechanism capable of lowering the seat and a lifting mechanism capable of lowering the seat below the sliding position and raising the seat to the sliding position are provided, and the seat is slidable toward the door opening and lifted through the door opening. In a vehicle seat slide / elevation device that has been made possible, as the elevating mechanism, a base plate that is assembled to the floor so as to be movable in the front-rear direction of the seat, and a base portion that is rotatable above the base plate are provided. A linear upper link arm that is assembled and extends along the moving direction of the base plate and is substantially horizontal in a stored state, and a lower portion of the base plate. A four-bar linkage having a lower link arm that is rotatably assembled at the base and extends along the moving direction of the base plate, and an elevating plate to which the tips of both arms are rotatably connected. And a slide mechanism,
A rail configured by the upper link arm in a housed state in the elevating mechanism and a rail portion formed on the elevating plate and continuous with the upper link arm in a straight line; and a rail movably attached to the rail in the longitudinal direction. A slide mechanism including a seat mount for supporting the seat and a slide fixing device for releasably fixing the seat mount at a fixed position or a slide position is adopted.

In this case, the upper link arm that constitutes the rail and the rail portion of the elevating plate are formed in a substantially U-shape, and a concave portion that opens to the side is provided, and the seat mounting base is provided in this concave portion. It is desirable to arrange a roller that is movable in the longitudinal direction of the rail.

[0006]

In the seat slide / elevator of the vehicle according to the present invention, if the seat mounting base is released from the slide fixing device, the upper link arm and the elevator plate in the housed state of the elevator mechanism are formed. The seat mount can be moved together with the seat along a rail configured by the upper link arm and the rail portion that is continuous in a straight line. At this time, the seat mount and the seat can move the entire stroke between the fixed position and the slide position. And the components of the lifting mechanism do not move over the entire stroke. Therefore, when the seat is manually slid between the fixed position and the sliding position, it can be operated lightly with a small amount of labor.

Further, according to the present invention, the upper link arm which constitutes the rail and the rail portion of the elevating plate are formed in a substantially U shape, and a concave portion which opens to the side is provided.
When a roller is arranged in this recess so that the seat mount can be moved in the longitudinal direction of the rail, the rail is composed of the plate-like upper link arm and the rail, and the upper and lower surfaces of the rail are respectively arranged. Rollers arranged so that the height of the entire apparatus is in contact with the upper surface of the rail, as compared with the case where the respective rollers that are in contact with each other are vertically spaced from each other and the sheet mounting base can be moved in the longitudinal direction by these rollers. It can be suppressed by the amount corresponding to the height of the seat, and the seat can be favorably supported in the passenger compartment of a limited height.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 8 show that the device according to the present invention is applied to the seat on the left side of the middle row of the one-box car, that is, the seat S1 arranged on the left side where the door opening 92 opened and closed by the slide door 91 is formed. As an example, this device uses the seat S1 for the passenger compartment floor 9
A swivel mechanism A1 that can swivel with respect to 3 and a seat S1 that can slide in the front-back direction of the seat S1 (left-right direction of the vehicle) between a fixed position (position in FIG. 2) and a slide position (position in FIG. 6). It is provided with a slide mechanism B1 and a lifting mechanism C1 capable of lowering the seat S1 below the slide position and raising the seat S1 to the slide position.

As shown in FIGS. 2 and 3, the turning mechanism A1 includes a fixed plate 11 fixed to a floor 93 of a vehicle compartment, a support column 12 standing upright at substantially the center of the fixed plate 11, and the support column. A rotary pedestal 14 rotatably mounted on the upper part of 12 through a bearing 13, and the rotary pedestal 14 in its original position (seat S
1 is a position held in a non-turning fixed position shown by the solid line in FIG. 1) and a turning position (the seat S1 is held in a turning fixed position shown by the one-dot chain line in FIG. 1 and a slide position shown by the two-dot chain line) Fixing device 20 for releasable fixing at a fixed position)
It is constituted by. 2 and 3 are seats S
1 shows a state in which it is held at the turning fixed position shown by the alternate long and short dash line in FIG.

As shown in FIG. 4, the turning fixing device 20 is integrally formed by using a handle shaft 21 rotatably assembled to the rotary base 14 and a connecting pin 22 at an intermediate portion of the handle shaft 21. The arm 23 assembled to the rotary base 14 and the lock hole 11a provided in the fixed plate 11 at the lower end, which is assembled vertically movable to the rotary pedestal 14 and is urged downward by the spring 24 (two positions of the original position and the turning position). (Provided)
And a lock pin 25 that fits in the lock pin 25 and a U-shaped groove that penetrates the lock pin 25 and that is formed at the tip of the arm 23 to convert the swinging motion of the arm 23 into the vertical motion of the lock pin 25 and transmit the same. The pin 26 is constituted by a pin 26, and by rotating the handle shaft 21 in the counterclockwise direction in FIG. 2, the lock pin 25 can be pulled out from the locking hole 11a so that the rotary pedestal 14 can be rotated. ing.

The slide mechanism B1 is formed on the upper link arm 52 of the lifting mechanism C1 in the housed state shown in FIG. 2 and the lifting plate 54 connected to the front end of the upper link arm 52, and is aligned with the upper link arm 52. A pair of left and right rails constituted by a rail portion 54a continuous with each other, and each of these rails is movably assembled through four rollers 32 to 35 in the longitudinal direction of the same rail S1.
The seat mounting base 31 for supporting the seat mounting base 31, the stopper 54b formed on the elevating plate 54 for restricting the forward movement of the seat mounting base 31, and the seat mounting base 31 at the fixed position (the position in FIG. 2) and the slide position (the position in FIG. 2). 6) and is configured to be releasably fixed at a slide fixing device 40.

As shown in FIGS. 2, 3 and 5, the slide fixing device 40 includes a handle lever 43 which is swingably assembled to a bracket 41 fixed to a seat mounting base 31 by using a support pin 42. And is assembled to the seat mount 31 so as to be able to move left and right, and is urged toward the upper link arm 52 by the spring 44, and the base plate 51 is attached at the large diameter end.
A lock pin 45 that engages with a locking notch 51a provided on the base plate or a locking notch (not shown) provided on the lifting plate 54,
The lock pin 45 is fixed to the end surface of the small-diameter end portion (through which the tip of the handle lever 43 is fitted) formed through the bracket 41 and fixed to the handle lever 43.
5 is constituted by a connecting pin 46 that engages with a U-shaped groove formed at the tip of the handle lever 43 and converts the swinging motion of the handle lever 43 into the lateral motion of the lock pin 45 and transmits the same. The lock pin 45 is pulled out from the locking notch 51a by rotating to the seat mounting base 3
1 can be moved in the longitudinal direction of the rail.

As shown in FIGS. 2 and 3, the elevating mechanism C1 includes a pair of front and rear guide rollers 58 on each of the guide rail portions 14a having a U-shaped cross section provided on the left and right ends of the rotary pedestal 14.
A base plate 51 mounted so as to be movable in the front-rear direction of the seat S1 via 59, and a guide rail part 1 that is rotatably mounted on the upper part of the base plate 51 at the base.
2 and a substantially horizontal straight upper link arm 52 in the housed state of FIG.
A pair of left and right four-joint link mechanisms composed of a curved lower link arm 53 extending along a and an elevating plate 54 to which the distal ends of these arms 52, 53 are rotatably connected, and a rotary base 14. The guide pin 55 is fixed to the lower surface of the tip and slidably engages with the lower surface (cam surface) of the lower link arm 53, and is driven up and down by a driving device 60.

As shown in FIGS. 2 and 3, the driving device 60 is supported by the rotary pedestal 14 at both front and rear ends, extends along the guide rail portion 14a, and has a rack shaft 61 having rack teeth 61a on its upper surface. The rack shaft 6 is rotatably assembled in a box 62 fixed to the lower surface of the base plate 51.
Pinion (not shown) that meshes with one rack tooth 61a
And an electric motor 63 with a speed reducer that is mounted on the side of the box 62 to rotate the pinion forward and backward. The electric motor 63 rotates the pinion forward to move the base plate 51 forward. Also, the base plate 51 can be retracted by rotating the pinion in the reverse direction by the electric motor 63.

In this embodiment configured as described above, the seat S1 in the non-turning fixed position shown by the solid line in FIG. 1 is obtained by sequentially performing the following operations (1) to (3). It can be moved to the vehicle exterior lowering position shown in FIG. 7, and can be returned to the original position by sequentially performing the reverse operation. (1) In the seat S1 in the non-turning fixed position shown by the solid line in FIG. 1, the handle shaft 21 of the turning fixing device 20 is operated to move the lock pin 25 from the locking hole 11a in the fixed position of the fixing plate 11. In this state, the seat S1 is swung up to the position shown by the alternate long and short dash line in FIG. 1 together with the rotary pedestal 14, and in that state the handle shaft 21 is returned to bring the lock pin 25 to the swivel position of the fixed plate 11. The rotary pedestal 14 cannot be turned by being fitted into a certain locking hole. (2) At the seat S1 in the fixed turning position shown by the alternate long and short dash line in FIG. 1 and FIG. 2, the handle lever 43 of the slide fixing device 40 is operated to pull out the lock pin 45 from the locking notch 51a of the base plate 51. In this state, the seat S1 is slid together with the seat mount 31 to the position shown by the chain double-dashed line in FIG. 1, that is, the slide position shown in FIG. 6, and in that state, the handle lever 43 is returned to lock the lock pin 45. The seat notch 31 is connected to the lifting plate 54 by engaging with the locking notch of the lifting plate 54. (3) In the seat S1 at the slide position shown in the chain double-dashed line in FIG. 1 and in FIG. 6, the electric motor 63 is driven to rotate the pinion forward, and the base plate 51 is moved to the position shown in FIGS. 7 and 8. To move forward. At this time, the lower surface of the lower link arm 53 of the lifting mechanism C1 is attached to the guide pin 55.
The seat S1 supported by the seat mount 31 slides down and descends in a horizontal state.

By the way, in this embodiment, when the fixing of the seat mounting base 31 by the slide fixing device 40 is released, the upper link arm is formed on the upper link arm 52 and the lifting plate 54 in the housed state of the lifting mechanism C1. The seat mounting base 31 is seated on the seat S along a rail constituted by the rail 52 and the rail portion 54a which is continuous in a straight line.
1, the seat mount 31 and the seat S1 move only the entire stroke between the fixed turning position and the sliding position, and the constituent members of the lifting mechanism C1 do not move at all. Therefore, when the seat S1 is manually slid between the fixed turning position and the sliding position,
It can be operated lightly with little effort.

Further, in this embodiment, the slide mechanism B1 is interposed between the seat cushion S1a of the seat S1 and the rotary pedestal 14 which are in a fixed position with respect to the rotary pedestal 14 (positions shown by solid lines and alternate long and short dash lines in FIG. 1). Since the elevator mechanism C1 is housed and the slide mechanism B1 and the constituent members of the elevator mechanism C1 are not arranged at the rear of the seat back S1b of the seat S1, the seat back S1b is provided behind the seat back S1b with respect to the seat cushion S1a. It is possible to secure a space for reclining, and it is possible to recline the seat back S1b with respect to the seat cushion S1a. Further, the slide mechanism B1, the elevating mechanism C1, and the drive device 60 are housed between the seat cushion S1a of the seat S1 which is in a fixed position with respect to the rotary pedestal 14 and the rotary pedestal 14, so that the seat longitudinal direction can be made compact. Therefore, a large space can be secured behind the seat S1 and the space can be effectively used as a leg space or luggage space of the rear seat. Further, an elevating mechanism C1 driven by an electric motor 63 is adopted as an elevating mechanism so that the electric motor 63 is arranged between the seat cushion S1a of the seat S1 in a fixed position with respect to the rotating pedestal 14 and the rotating pedestal 14. Therefore, in addition to the above-described effects, there is no need to worry about dirt due to oil leakage.

In the above-described embodiment, the present invention is applied to the device in which the seat can be turned with respect to the floor by the turning mechanism, but the present invention is also applied to the device in which the seat is not turnable with respect to the floor. The invention can be implemented,
In this case, for example, in the turning state shown in FIG. 2, the slide mechanism and the elevating mechanism are non-rotatably assembled with respect to the floor, and the seat is shown in the alternate long and short dash line or the solid line in FIG. It is assembled in the condition shown in.

Further, in the above-described embodiment, when the seat mount 31 and the seat S1 move the entire stroke between the fixed turning position and the sliding position, the constituent members of the lifting mechanism C1 are not moved at all. As in the embodiment shown in FIGS. 9 to 23, when the seat mount 131 and the seat S2 move the entire stroke between the fixed turning position and the sliding position, the components of the lifting mechanism C2 move by a predetermined amount. It is also possible to carry out the present invention.

The apparatus of another embodiment according to the present invention shown in FIGS. 9 to 23 is provided between the seat S2 and the floor 193 of the passenger compartment.
The seat S2 can be turned between the fixed turning position shown in FIG. 9 and an original position where the turning fixed position is turned 90 degrees forward of the vehicle, and between the fixed turning position and the facing position where the turning fixed position is turned 90 degrees rearward of the vehicle. And a slide mechanism B2 that can slide in the front-back direction of the seat S2 (left and right direction of the vehicle) between the fixed swing position and the slide position (position in FIG. 19). And a lift mechanism C2 capable of descending from the slide position (elevation position) and rising to the slide position, and the seat S2 can be moved by a predetermined amount in the front-rear direction of the vehicle together with the turning mechanism A2, the slide mechanism B2, and the lift mechanism C2. The moving mechanism D is provided.

The turning mechanism A2 is, as shown in FIGS. 9 to 12, a fixing ring 112 fixed to the upper support base 132 of the slide mechanism B2 and a fixing ring 112 fixed to the seat mounting base 131 supporting the seat S2. Bearing 113
Two upper and lower rotary rings 11 rotatably attached via
4, the seat mount 131 in the original position (a forward position in which the seat mount 131 is rotated 90 degrees clockwise from the state shown in FIG. 10), a fixed turning position (a horizontal position shown in FIG. 10), and a facing position (FIG. 10).
(A rearward position in which the seat S2 is turned 90 degrees counterclockwise from the state shown in FIG. 2) is releasably fixed to the upper support base 132 to fix the turning of the seat S2. The seat S2 can turn around the center of rotation of the ring 114.

The turning fixing device 120 is shown in FIGS.
As shown in FIG. 1, the handle shaft 121 rotatably assembled to the seat mount 131, and the handle shaft 121 interposed between the handle shaft 121 and the seat mount 131 to move the handle shaft 121 to the neutral position (the handle portion 121a is Balance spring 122 to be held in a substantially horizontal position)
And the cutouts 112a, 11 provided on the inner circumference of the fixing ring 112 so as to be movably assembled to the sleeve 129 fixed to the lower surface of the seat mount 131 on the inner circumference of the fixing ring 112.
2b or 112c (which are provided by being displaced by 90 degrees in the turning direction corresponding to the original position, the turning fixed position, and the facing position), and the lock pin 123 and the seat. A spring 124 which is interposed between the mounting bases 131 and urges the lock pin 123 toward each notch 112a, 112b or 112c of the inner circumference of the fixing ring 112, and the seat mounting base 131 is shown in FIG.
11, which is movably assembled in the vertical direction, and is provided in the middle portion of the handle shaft 121 as shown in FIG.
Link 1 which is engaged by the clockwise rotation of 21a and the handle shaft 121 in FIG. 11 and is moved upward in FIG.
25 and the seat mount 131 so as to be swingable, connected to the link 125 at one end, and the lock pin 1 at the other end.
It is constituted by a bell crank 126 connected to 23.

In this turning fixing device 120, when the handle shaft 121 is not operated, the handle shaft 121 is in the neutral position shown in FIGS. 9 and 10, and the lock pin 123 is fixed by the action of the spring 124. Since the notch 112a, 112b or 112c of the ring 112 is engaged (it is engaged with the notch 112b in FIG. 10), the seat mounting base 131 cannot rotate with respect to the upper support base 132, and the seat S2 The rotation is fixed at the original position, the turning position, or the facing position. Further, when the handle shaft 121 is rotated by the handle portion 121a in the clockwise direction of FIG.
23 is moved by a predetermined amount against the spring 124 by the link 125 and the bell crank 126, and the fixed ring 112
Since it is disengaged from the notch 112a, 112b, or 112c, the seat mounting base 131 can be rotated with respect to the upper support base 132, and the seat S2 can be rotated between the original position, the turning position, and the facing position.

As shown in FIGS. 9 to 14, the slide mechanism B2 includes an upper link arm 152 of the lifting mechanism C2,
A pair of left and right rails formed on a lifting plate 154 connected to the tip of the upper link arm 152 and formed by a rail portion 154a that is linearly continuous with the upper link arm 152, and two rollers 1
The seat S2 is mounted so as to be movable in the longitudinal direction of the rail (left and right direction of the vehicle) via the wheels 33 and 134, and the seat S2 is turned to the turning mechanism A2.
An upper support base 132 that supports the rails 1 and a pair of front and rear rails 1 that are assembled to the base 171 and extend in the left-right direction of the vehicle.
35 and two rollers 136 on each of these rails 135.
A lower support stand 138 that is movably mounted in the longitudinal direction of the rail 135 via 137 to support the seat S2, the turning mechanism A2, and the lifting mechanism C2, and is mounted to the base plate 151 and the lifting plate 154, respectively, and moves upward. The stoppers 156, 1 that regulate the amount of movement of the upper moving table 132 by engaging with the stopper pieces 132a fixed to the table 132
57 and the upper support base 132 at a fixed position (position shown in FIG. 9) and a slide position (position shown in FIG. 19).
Alternatively, the lower support base 138 is releasably fixed to the lift plate 154 and the lower support base 138 is fixed at a fixed position and at a slide position.
It is constituted by a slide fixing device 140 that is releasably fixed to 71 to disable the sliding of the seat S2.

As shown in FIGS. 10 and 12 to 15, the slide fixing device 140 is rotatably assembled to the upper support 132 and is mounted on the handle shaft 121 of the turning fixing device 120. The release shaft 141 rotated by the portion 121b and the release shaft 14
1 and the upper support base 132 are interposed between the release shaft 14
13, a spring 142 (see FIG. 10) that urges 1 in the clockwise direction, a pair of release bars 143 that are integrally assembled with the release shaft 141 and rotate integrally, and are connected to the release bars 143. Through the through hole provided in the upper support base 132 and the engaging hole 151 provided in the base plate 151.
a or an upper lock pin 144 that engages with an engagement hole 154b provided in the elevating plate 154.

The slide fixing device 140 is attached to a lower support 138 connected to the base plate 151 via a feed screw shaft 161 so as to be movable up and down via a bracket 138a (see FIG. 12). A rod 145 that penetrates through a notch 151b formed at the end of the upper support base 132 and engages with a pushing protrusion 132b formed at the end of the upper support base 132 in a detachable manner; and a flange provided at an intermediate portion of the rod 145. A spring 146 that is interposed between the brackets 138a and urges the rod 145 upward, and a lower end of the rod 145 that is integrally assembled via a pin and moves integrally with the rod 145 and is fixed on the base 171. Arcuate notch 172a provided at the end of the locked rail 172
(See FIG. 14) Stepped lock sleeve 14 that can be engaged with
7 and the bracket 173 (see FIG. 14) on the lock rail 172.
And a lower lock pin 148 with a brim that is detachably engaged with the lock sleeve 147 and is interposed between the lower lock pin 148 and the lock rail 172. The spring 149 (see FIG. 15) biases the lower lock pin 148 upward.

In this slide fixing device 140, when the handle shaft 121 is not operated in the state where the seat S2 is turned to the fixed turning position (in the state shown in FIGS. 9 to 15), the release shaft 141 and The release bar 143 is in the return position shown in FIGS. 12 and 13 due to the action of the spring 142, and the upper lock pin 144
Is engaged with the engagement hole 151a provided in the base plate 151, the upper support base 132 cannot move with respect to the base plate 151, and the rod 145 and the lock sleeve 147 are moved downward by a predetermined amount by the pushing protrusion 132b. The lower lock pin 148 is maintained in a non-contact state with the lock rail 172, and the lower lock pin 148 is engaged with the lock sleeve 147. Therefore, the lower plate connected to the base plate 151 via the feed screw shaft 161 is attached. Support 138
Is immovable with respect to the base 171, and the seat S2 is prevented from sliding in the left-right direction at the fixed turning position.

When the seat S2 is in the sliding position and the handle shaft 121 is not operated (see FIG. 19).
(In the state shown in FIG. 2), the release shaft 141 and the release bar 143 are in the return position by the action of the spring 142, and the upper lock pin 144 is engaged with the engagement hole 154b provided in the elevating plate 154. Lifting mechanism C
2 upper link arm 152 and lower link arm 15
The upper support base 132 is immovable with respect to the elevating plate 154 connected to the base plate 151 through 3, and the pushing protrusion 132b is separated from the rod 145, so that the rod 145 and the lock sleeve 147 move upward. Since the lock sleeve 147 is maintained in the moved state and is engaged with the arcuate cutout 172a of the lock rail 172, the lower support base 138 is immovable in the slide position with respect to the base 171, and the seat S2 is It is impossible to slide to the left and right at the slide position.

By the way, in the slide fixing device 140, when the handle shaft 121 is rotated counterclockwise in FIG. 11 with the seat S2 turned to the fixed turning position (at this time, the pin portion 121a is linked to the link 125). The inside of the long hole provided in the
5 is not moved by the pin portion 121a), the release shaft 141 and the release bar 143 are rotated by the crank portion 121b of the handle shaft 121 to release the slide fixing, and the seat S2 is set to the original position and When the handle shaft 121 is rotated in the counterclockwise direction in FIG. 11 in the inverted position, the crank portion 121b of the handle shaft 121 causes the release shaft 141 to move.
Since the release shaft 141 and the release bar 143 are not rotated, the slide fixing is not released. In the state where the release shaft 141 and the release bar 143 are rotated by the crank portion 121b of the handle shaft 121 and the slide fixing is released, the seat S2 can slide between the fixed turning position and the slide position.

The elevating mechanism C2 includes a base plate 151 mounted to a pair of front and rear U-shaped cross-section guide rails 139 provided on a lower support 138 so as to be movable in the left and right direction via a pair of left and right guide rollers 158 and 159. The upper part of the base plate 151 is rotatably assembled to the base plate 151 and extends along each guide rail 139. The upper link arm 152 is a straight line which is substantially horizontal in the housed state of FIG. Left and right composed of a curved lower link arm 153 that is rotatably assembled and extends along each guide rail 139, and an elevating plate 154 to which the tips of the arms 152 and 153 are rotatably connected. A pair of four-bar linkage and each guide rail 13
A guide pin 155 fixed to the lower surface of the front end of the guide pin 9 and slidably engaged with the lower surface (cam surface) of the lower link arm 153.
Each of the guide rails 1 is configured by a drive device 160 including an electric motor.
By moving along 39, the lifting plate 154
Is moved up and down as shown in FIGS. 19 and 21.

As shown in FIGS. 13 and 14, the driving device 160 is mounted on a lower support 138 so as to be rotatable and axially immovable, and extends along a guide rail 139, and a feed screw shaft 161 and a base plate. 151 is fixed to the lower surface of 151 and screwed onto the feed screw shaft 161 to feed screw shaft 161.
Of the nut 162 that moves along the feed screw shaft 161 by the rotation of the driven screw 161, the driven gear 163 that is integrally rotatably mounted on the feed screw shaft 161, and the forward and reverse rotatable speed reducer that is mounted on the lower support 138. The motor 164 and a drive gear 165 that is integrally rotatably mounted on the output shaft of the electric motor 164 and meshes with the driven gear 163 are configured to rotate the electric motor 164 in the forward direction to move the base plate 151 to the position shown in FIG. To the position of FIG. 21, and by rotating the electric motor 164 in the reverse direction, the base plate 151 can be moved from the position of FIG. 21 to the position of FIG.

Further, in this embodiment, the lower part of the seat S2 shown in FIG. 21 is positioned below the distance between the fulcrums of the upper link arm 152 of the four-bar linkage having the fulcrum of rotation above. When the distance between the fulcrums of the link arm 153 is shortened by a predetermined amount, and the seat S2 in the horizontal position at the raised position as shown in FIG. 19 is moved down to the lowered position shown in FIG. 21 by the four-bar linkage mechanism. , The seat S2 due to the difference in the swing loci of the link arms 152 and 153.
Is tilted as shown in FIG.

The moving mechanism D is provided to secure a sufficient leg space in front of the seat S2 when the seat S2 is in the original position or the facing position, and as shown in FIGS. 9 and 16. On the floor 193 of the passenger compartment, the mounting plate 19
4, a pair of left and right rails 174 assembled in the vehicle front-rear direction, and a pair of front and rear sliders 175, 176 fixed to the lower surface of the base 171 and movably mounted on the rails 174, A pair of front and rear stopper pieces 171 attached to the mounting plate 194 and fixed to the lower surface of the base 171.
A stopper 177 that regulates the amount of movement of the base 171 by engaging with a and 171b, and a moving fixing device 180 that releasably fixes the base 171 to the mounting plate 194.

The moving fixing device 180 includes a pair of left and right lock plates 181 fixed to a mounting plate 194 and extending along the rail 174, and a pair of front and rear lock plates 181 mounted on the lower surface of the base 171 and provided on each lock plate 181. Engaging hole 18
Lock piece 182 that removably fits into 1a, 181b
And each lock piece 182 is engaged with an engagement hole 181a or 181b.
And a spring 183 biased to a position where the link 184 is engaged with the base 171.
Release lever 18 connected to each lock piece 182 via
16 and the release lever 185 is shown in FIG.
Both locking pieces 182 can be disengaged from the engagement holes 181a or 181b by swinging to the position indicated by the phantom line, and the base 171 can be fixed at the front position and the rear position. Is.

In this embodiment constructed as described above, the handle shaft 121 is moved by a predetermined amount in the clockwise direction in FIG. 11 in the state shown in FIGS. 9 to 16 (the seat S2 is in the fixed turning position). When the turning operation is performed, the lock pin 123 of the turning fixing device 120 is disengaged from the notch 112b, and the seat mounting base 131 can be swung with respect to the upper support base 132. Therefore, in such a state, the seat S2 can be turned to the original position or the facing position, and if the handle shaft 121 is returned (released) at each position, the lock pin 123 engages with the notch 112a or 112c. As a result, the seat mount 131 becomes unrotatable with respect to the upper support 132, and the seat S2 is fixed at the original position or the facing position. The same operation can be performed when the seat S2 is turned from the original position or the facing position to another position.

Further, in this embodiment, the handle shaft 121 is installed in the state shown in FIGS.
When it is rotated counterclockwise by a predetermined amount, the upper lock pin 144 of the slide fixing device 140 is moved to the base plate 1.
The upper support base 132 is slidable with respect to the base plate 151 by being disengaged from the engagement hole 151 a of the 51. Therefore, if the seat S2 is moved forward, the seat S
2 moves along with the seat attachment base 131 and the upper support base 132 along the rail formed of the upper link arm 152 and the rail portion 154a.

During this movement, when the pushing protrusion 132b is disengaged from the rod 145 as shown in FIG. 17 due to the movement of the upper support base 132, the rod 1 as shown in FIG.
45 is moved upward by the spring 146, the fixation of the lock sleeve 147 by the lower lock pin 148 is released, and the lock sleeve 147 slidably abuts the lock rail 172 at its step portion. The link arms 152, 153 and the lifting plate 154 are integrated with the lower support 138 to form the base 1.
It becomes slidable with respect to the rail 135 fixed to 71. Therefore, after that, the seat S2 moves toward the position shown in FIG. 19 along the rail including the upper link arm 152 and the rail portion 154a together with the seat mounting base 131 and the upper supporting base 132, and the base plate 151, both The link arms 152, 153 and the elevating plate 154 move integrally with the lower support 138 along the rail 135 toward the position shown in FIG.

If the handle shaft 121 is returned (when the hand is released) while the seat S2, the seat mounting base 131, the upper support base 132 and the like are moved to the positions shown in FIG. 19, the upper lock pin 144 of the lifting plate 154 is moved. Engagement hole 154b
And the seat S2 is connected and fixed to the elevating plate 154 together with the seat mounting base 131 and the upper supporting base 132. In the state shown in FIG. 19, the lock sleeve 147 automatically engages with the notch 172a of the lock rail 172 by the action of the spring 146 as shown in FIG.
2, 153 and the lifting plate 154
Together with the base 171. Therefore, the seat S2 is fixed at the sliding position shown in FIG.

Further, in the state shown in FIG.
When the electric motor 164 is rotated forward, the feed screw shaft 1 is rotated.
61 rotates and the base plate 151
8 moves along the rail 139 fixed to the base member 151, and by the movement of the base plate 151, the two link arms 152,
153 and the elevating plate 154 move down as shown in FIG. For this reason, the upper support base 132 connected and fixed to the elevating plate 154, the seat mounting base 131 integrated with the upper support base 132, and the seat S2 can be moved to the vehicle outside lowered position shown in FIG. It should be noted that the seat S2 in the vehicle exterior lowered position shown in FIG.
By rotating 64 in the reverse direction, it can be returned to the slide position shown in FIG.

When the handle shaft 121 is rotated counterclockwise in FIG. 11 by a predetermined amount in the state shown in FIG. 19, the upper lock pin 14 of the slide fixing device 140 is rotated.
4 is disengaged from the engaging hole 154b of the elevating plate 154, and the upper support base 132 is slidable with respect to the elevating plate 154. For this reason, if the seat S2 is moved rearward, the seat S2 will move together with the seat attachment base 131 and the upper support base 132 together with the upper link arm 152 and the rail portion 1.
It moves along a rail composed of 54a.

With this movement, the upper support base 132 is moved to the position shown in FIG.
When the position shown in FIG.
32b, the rod 145 is moved downward against the spring 146 as shown in FIG.
7 is disengaged from the cutout 172a of the lock rail 172, and the lower support 138 is slidable with respect to the base 171. Therefore, after that, the seat S2 is integrated with the seat mounting base 131, the upper support base 132, the base plate 151, the link arms 152 and 153, and the elevating plate 154 along the rail 135, as shown in FIG.
Move toward the turning fixed position shown in. It should be noted that immediately before the lock sleeve 147 returns to the position shown in FIGS. 12 and 15 (the position that is fixed by the lower lock pin 148 so that it cannot slide), the lower lock pin 148 is attached to the tapered surface provided at the lower end of the lock sleeve 147. Spring 1
It is pushed against 49 and temporarily evacuated.

When the handle shaft 121 is returned (the hand is released) while the seat S2 and the like are moved to the fixed turning positions shown in FIG. 9, the upper lock pin 144 causes the upper lock pin 144 to move.
The seat S2 is engaged with the engaging hole 151a of the base plate 1 together with the seat mounting base 131 and the upper supporting base 132.
It is connected and fixed to 51. Therefore, the seat S2 is fixed at the fixed turning position shown in FIG.

Further, in this embodiment, the seat S2
Is in the original position or the facing position rotated by 90 degrees from the fixed turning position shown in FIGS. 9 to 16, the release lever 185 of the moving fixing device 180 is operated to move each lock piece 182 to the respective position. Each engagement hole 181a of the lock plate 181
Or, if it is removed from 181b, the base 171 becomes the mounting plate 194.
The vehicle can be moved in the front-back direction. Therefore, the base 171 is moved to the rear position when the seat S2 is in the original position, and the base 1 is moved when the seat S2 is in the facing position.
By moving 71 to the front position, a sufficient leg space can be secured in front of the seat S2. If the operation of the release lever 185 is released while the base 171 is moved to the front position or the rear position, each lock piece 182 is moved to the engagement hole 181a or 181b of each lock plate 181 by the action of the spring 183. Engage the base 17
1 is immovably fixed to the mounting plate 194.

As is clear from the above description, in the embodiment shown in FIGS. 9 to 23, the same effects as those of the embodiment shown in FIGS. The upper link arm 152 that constitutes a rail for moving the platform 132 and the rail portion 154a of the elevating plate 154 are formed in a substantially U shape and have a concave portion that opens to the side, and the roller 133 and the concave portion are provided in this concave portion. Thirteen
4 is arranged, the roller 32 is arranged such that the height of the entire device is in contact with the upper surface of the rail (52) shown in FIG. 2 as compared with the embodiment shown in FIGS. , 3
Therefore, the seat S2 can be satisfactorily supported in the limited passenger compartment.

[Brief description of drawings]

FIG. 1 is a plan view showing one embodiment of a seat moved by a device according to the present invention.

FIG. 2 is a side view showing an embodiment of the device according to the present invention.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

5 is a cross-sectional view taken along line 5-5 of FIG.

FIG. 6 is an operation explanatory view showing a state in which a seat is in a sliding position.

FIG. 7 is an operation explanatory view showing a state in which the seat is in the lowered position.

FIG. 8 is a plan view seen from the direction of arrow 8 in FIG.

FIG. 9 shows another embodiment of the device according to the invention.

FIG. 10 is a plan view showing a state where a seat is removed in FIG.

FIG. 11 is a partial cutaway view of the device shown in FIG. 9 as seen from the front of the seat.

12 is a partial cutaway view of the device shown in FIG. 9 as seen from the rear of the seat.

FIG. 13 is a sectional view taken along the line 13-13 in FIG. 11;

14 is a cross-sectional view taken along line 14-14 of FIG.

15 is an enlarged cross-sectional view showing the relationship between the lock rail, the lower lock pin, the lock sleeve, and the like shown in FIG.

16 is a cross-sectional view taken along line 16-16 of FIG.

FIG. 17 is a plan view showing a state in which the seat mount and the upper support are slightly moved in the sliding position direction with respect to the base plate in FIG.

FIG. 18 is a partially cutaway view of the device shown in FIG. 17 as seen from the rear of the seat.

FIG. 19 is an operation explanatory view showing a state in which the seat is in the slide position (elevated position).

20 is a cross-sectional view taken along line 20-20 of FIG.

FIG. 21 is an operation explanatory view showing a state in which the seat is in the lowered position.

FIG. 22 is an operation explanatory diagram showing a state where the seat is being moved from the slide position toward the home position of turning.

23 is a sectional view taken along the line 23-23 in FIG.

[Explanation of symbols]

11 ... Fixing plate, 12 ... Struts, 14 ... Rotating pedestal, 20 ... Rotating fixing device, 31 ... Sheet mounting base, 32-35 ... Rollers, 40 ... Sliding fixing device, 51 ... Base plate, 52 ... Upper link arm, 53 ... Lower link arm, 54 ... Elevating plate, 54a ... Rail part, 55 ... Guide pin, 60 ... Drive device, 92 ... Door opening part, 93 ...
Floor, A1 ... Turning mechanism, B1 ... Sliding mechanism, C1 ...
Lifting mechanism, S1 ... Seat, 120 ... Fixing device for turning, 13
1 ... Seat mount, 132 ... Upper support, 133, 13
4 ... Roller, 135 ... Rail, 136, 137 ... Roller, 138 ... Lower support base, 139 ... Guide rail, 14
0 ... Fixing device for slide, 151 ... Base plate, 1
51a ... Engaging hole, 152 ... Upper link arm, 153 ...
Lower link arm, 154 ... Lifting plate, 154a ...
Rail part, 154b ... Engagement hole, 155 ... Guide pin, 1
60 ... Drive device, 171 ... Base, 172 ... Rock rail, 172a ... Notch, 193 ... Floor, 194 ... Mounting plate, A2 ... Swivel mechanism, B2 ... Slide mechanism, C2 ... Lifting mechanism, S2 ... Seat, D ... Move mechanism.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikazu Kawai 26 Kurosan, Otogawa, Kira-cho, Hazu-gun, Aichi Prefecture (72) Inventor Koji Sugi 9-1, Araizawa, Hachiji-cho, Okazaki-shi, Aichi (72) ) Inventor Fumiaki Takeda 25 Kamifujiike, Yoshihara-cho, Toyota-shi, Aichi, Arako Co., Ltd. 25, Kamifujiike, Yoshihara-cho, Araco

Claims (2)

[Claims] 1. A slide mechanism capable of sliding a seat supported on a floor of a vehicle compartment between a fixed position and a slide position in the front-rear direction of the seat, and lowering the seat below the slide position. A seat slide / elevation device in a vehicle, which includes an elevating mechanism capable of ascending to the sliding position, and is capable of elevating the seat toward the door opening and elevating through the door opening. A base plate that is attached to the floor so as to be movable in the front-rear direction of the seat, and a base plate that is rotatably attached to an upper portion of the base plate and extends along the moving direction of the base plate, and is substantially horizontal in a stored state. A straight upper link arm and a lower part of the base plate are rotatably attached to the base plate along the moving direction of the base plate. A lower link arm extending downwardly and an elevating mechanism having a four-node link mechanism composed of an elevating plate to which the tips of both arms are rotatably connected are employed, and the sliding mechanism is used in the elevating mechanism. A rail formed by the upper link arm in a stored state and a rail portion formed on the elevating plate and continuous with the upper link arm in a straight line; and a rail that is movably assembled to the rail to move the seat. A seat slide / lift device for a vehicle, which employs a slide mechanism including a seat mount that supports the seat mount and a slide fixing device that releasably fixes the seat mount to a fixed position or a slide position. 2. The upper link arm that constitutes the rail and the rail portion of the elevating plate are formed in a substantially U shape to provide a concave portion that opens laterally, and the seat mounting base is provided in the concave portion. 2. A seat slide / elevator for a vehicle according to claim 1, further comprising a roller that is movable in the longitudinal direction of the vehicle.