JP3750522B2 - Vehicle seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat having a structure in which a seat body is movable along a guide member while descending from a vehicle interior to the exterior of the vehicle.
[0002]
[Prior art]
Conventionally, as shown in FIG. 10, this type of vehicle seat 1 includes a guide member 4 that slide-supports the seat body unit 2 in the width direction of the vehicle (the left-right direction in FIG. 10). The guide member 4 is composed of a pair of linear rails having a certain inclination, and the front / rear direction support base 2a of the seat body unit 2 is slidably mounted on the guide member 4. A seat body 2c is placed on the front / rear direction support base 2a via a rotation support base 2b.
When getting on and off, the seat body unit 2 is slid along the guide member 4 and moved out of the vehicle from the door opening D while the seat body 2c is rotated about 90 degrees toward the door opening D by the rotation support base 2b. .
[0003]
[Problems to be solved by the invention]
As described above, since the guide member 4 of the vehicle seat 1 is composed of a pair of linear rails having a certain inclination, the seat body 2c of the seat body 2c when sliding the seat body 2c outward from the vehicle interior The rate of decline is constant. For this reason, if the ground height of the seat body 2c at the slide end position (hereinafter referred to as the getting-on / off position) is to be further lowered, the guide member 4 is set to have a larger length dimension or the length dimension remains unchanged. It is necessary to set the inclination of 4 large. However, considering the space in the passenger compartment, there is a limit to increasing the length of the guide member 4. Further, when the inclination of the guide member 4 is set to be large, there arises a problem that the position of the seat body 2c becomes higher than the other seats (is bulky in the vertical direction) in the passenger compartment.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat that has a structure that is not bulky in a passenger compartment and that can lower the ground clearance of the seat body at the getting-on / off position as compared with the conventional art.
[0005]
[Means for Solving the Problems]
  The above-described problems are solved by the inventions of the claims.
  In the invention of claim 1, the seat body isA pair of left and right fixed guide railsA vehicle seat having a structure that can move while descending from the vehicle interior to the vehicle exterior alongThe pair of left and right fixed guide rails is configured to be swingable up and down around a fulcrum, and the fixed guide rail is swung around the fulcrum by the operation of an inclination adjusting means, and the tilt of the fixed guide rail is adjusted. The pair of left and right fixed guide rails are connected to a pair of left and right movable rails slidable along the fixed guide rails, and the seat body is supported by the pair of left and right movable rails. The seat body is configured to be movable outward from the fulcrum of the fixed guide rail.It is characterized by that.
[0006]
  According to the present invention,The pair of left and right fixed guide rails are configured to be swingable up and down around the fulcrum, and the fixed guide rail swings around the fulcrum by the operation of the tilt adjusting means, and the tilt of the fixed guide rail is adjusted. Further, a pair of left and right movable rails slidable along these fixed guide rails are connected, and the seat body is supported by these movable rails. That is,When the seat body is moved downward from the vehicle interior to the boarding / alighting position, the lowering rate of the seat body can be set small in the vehicle interior and large in the vicinity of the boarding / alighting position. For this reason,Fixed guide railThe ground clearance of the seat body at the getting-on / off position can be made lower than before without increasing the length dimension of the seat. Also, in the passenger compartmentFixed guide railTherefore, the position of the seat body in the passenger compartment does not increase. For this reason, the vehicle seat is not bulky in the passenger compartment.
  That is, the ground height of the seat body at the getting-on / off position is lower than before without increasing the size of the vehicle seat.
[0007]
The invention according to claim 2 is a vehicle seat having a structure in which the seat main body is movable along the pair of left and right fixed guide rails while being lowered from the vehicle interior to the outside of the vehicle so that the inclination increases as approaching the front end side. The pair of left and right fixed guide rails are curved downward, and the pair of left and right fixed guide rails have a pair of left and right movable rails that are also curved downward along the fixed guide rails. The seat body is connected so as to be slidable, and the seat body is supported by the pair of left and right movable rails.
For this reason, the fixed guide railEven if the inclination of the seat is not adjusted, the ground clearance of the seat body at the getting-on / off position can be lowered.
According to a third aspect of the present invention, there is provided a vehicle seat having a structure in which a seat body is movable along a pair of right and left inclined fixed guide rails while being lowered from the vehicle interior to the outside of the vehicle. A pair of left and right movable rails configured to be slidable along the fixed guide rails with the same inclination as those fixed guide rails are coupled to the pair of left and right movable rails via an elevating mechanism. The front part of the seat body is raised and lowered by the operation of the lifting mechanism, and the inclination of the seat body is adjusted.
For this reason,Of the seat in the boarding / exiting positionFrontThe ground clearance can be lowered.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
Hereinafter, the vehicle seat according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. 1 is a side view of a vehicle seat, FIG. 2 is a rear view of the vehicle seat, and FIGS. 3 to 5 are component diagrams of the vehicle seat. Here, the following description will be made assuming that the width direction of the vehicle is the X direction, the longitudinal direction of the vehicle is the Y direction, and the height direction of the vehicle is the Z direction.
In FIG. 1, reference numeral 6 denotes a driver seat, and 10 denotes a passenger seat. In the present embodiment, a description will be given of the case where the passenger seat 10 is the vehicle seat of the present invention. A door opening D is located on the left side of the passenger seat 10 (hereinafter referred to as a vehicle seat 10).
[0009]
The vehicle seat 10 includes a seat body 12, a slide support 13 that slides the seat body 12 in the direction facing the vehicle, a rotation support base 14 that rotatably supports the slide support base 13, and A front / rear direction support base 15 for slidingly supporting the rotation support base 14 in the front / rear direction of the vehicle is provided.
As shown in FIGS. 1 and 2, the seat body 12 includes a seat cushion 12a and a seat back 12b. A seat holder 16 having a footrest 16a is attached to the lower surface of the seat cushion 12a. The seat body 12 is attached to the slide support 13 via the seat holder 16.
[0010]
As shown in FIGS. 3A and 3B, the slide support 13 includes a pair of left and right linear slide mechanisms 20 and 20. Both linear slide mechanisms 20 and 20 have a structure including a fixed guide rail 20a and a movable rail 20b, and a large number of steel balls 20c to 20c sandwiched between V-grooves 20d and 20d of both rails 20a and 20b.
As shown in FIG. 3A, the front and rear portions of both movable rails 20b and 20b are connected by connecting bases 24 and 25 to form a sliding frame (movable member 21). Also, brackets 26 and 27 are attached between the movable rails 20b and 20b, near the center of the movable member 21 in the sliding direction, and on the connecting base 24 on the front side. The seat body 12 is attached to the movable member 21.
[0011]
A substantially box-shaped connection base 29 is attached between the rear ends of the fixed guide rails 20a, 20a, and a motor 30 as a drive source of the slide support 13 is attached to the connection base 29. (See FIG. 3B). One end of a screw shaft 31 is connected to the motor 30 via a reduction gear 30a. The front ends of the fixed guide rails 20a and 20a are also connected by a connection base 28, and the other end side of the screw shaft 31 is rotatably supported by a bracket 28a attached to the connection base 28. Thus, both the fixed guide rails 20a and 20a are also integrated by the connecting bases 28 and 29 to constitute the frame 22 on the slide fixing side. Hereinafter, the frame body 22 on the slide fixing side is referred to as a guide member 22.
[0012]
A nut 32 is screwed onto the screw shaft 31, and the nut 32 is fixed to the connection base 25 of the movable member 21 via a bracket 33. As a result, when the motor 30 is started, the screw shaft 31 rotates and the nut 32 moves on the screw shaft 31, thereby moving the movable member 21 and the seat body 12 in the vehicle width direction (sliding of the linear slide mechanism 20). Direction).
[0013]
The above-described slide support 13 is attached to the rotation base 41 via a pair of connecting mechanisms 72 and a pair of lifting mechanisms 70 as shown in FIG.
The coupling mechanism 72 is composed of an upper bracket 72a and a lower bracket 72b that are coupled to each other by a coupling pin 72c so as to be relatively rotatable, and both the upper brackets 72a constitute both the fixed guide rails 20a, It is fixed to the outer surface front part of 20a. Further, the lower bracket 72 b of the coupling mechanism 72 is fixed to both sides of the front end portion of the rotation base 41.
[0014]
The elevating mechanism 70 is a mechanism for raising and lowering the rear portion of the slide support base 13 and swinging the slide support base 13 up and down around the connection pin 72c of the connection mechanism 72. An example is shown in FIG. Show. The elevating mechanism 70 includes a motor 73 as a drive source attached on the rotation base 41, and the rotational force of the motor 73 is transmitted to the vertical screw shaft 75 via the gear box 74 on the rotation base 41. A nut 76n of an L-shaped lifting bracket 76 is screwed to the vertical screw shaft 75, and the L-shaped lifting bracket 76 moves up and down by rotating the vertical screw shaft 75. The vertical plate portion 76w of the L-shaped lifting bracket 76 is connected to the upper bracket 78 by a connecting pin 77 so as to be rotatable relative to the upper bracket 78. It is fixed to.
[0015]
As a result, when the motor 73 is started in the forward rotation direction or the reverse rotation direction, the L-shaped lifting bracket 76 is lifted and lowered by the screwing action of the vertical screw shaft 75 and the nut 76 n, and the slide support 13 is connected to the connecting mechanism 72. It swings up and down with the pin 72c as a fulcrum. That is, the tilt of the slide support 13 is changed by the action of the lifting mechanism 70.
[0016]
FIG. 5B shows a modification example of the lifting mechanism 70. 5B includes a link mechanism 82 provided between the slide support base 13 and the rotation base 41, and a motor 81 that operates the link mechanism 82. The link mechanism 82 includes a first lever 83 and a second lever 84, and ends of both levers 83 and 84 are rotatably connected by a central connecting pin 82p. A lower end portion of the first lever 83 is rotatably connected by a lower bracket 85 fixed to the rotation base 41 and a lower connection pin 85p. Further, the upper end portion of the second lever 84 is rotatably connected by an upper bracket 86 fixed to the rear portion of the outer surface of the slide support 13 and an upper connecting pin 86p.
[0017]
The link mechanisms 82 provided on both sides of the rotation base 41 in the width direction are connected to each other by central brackets 82p by horizontal brackets 87, and screw shafts 88 are screwed into nut portions 87n provided in the horizontal brackets 87. ing. Here, the horizontal bracket 87 is rotatable about its axis, and the screw shaft 88 is connected to the rotation shaft 81 r of the motor 81 via the universal joint 89. Thus, when the motor 81 is started in the forward direction or the reverse direction, the distance between the lateral bracket 87 and the motor 81 is changed by the screwing action of the screw shaft 88 and the nut portion 87n, and the link mechanism 82 is extended. Alternatively, the slide support 13 is moved up and down by being folded. That is, the elevating mechanism 70, the elevating mechanism 80, and the like correspond to the tilt adjusting means of the present invention.
[0018]
As shown in FIG. 4, the rotation base 41 that supports the lifting mechanism 70 and the like is attached to the inner ring 14 a side of the rotation support base 14. V-grooves (not shown) are formed on the outer peripheral surface of the inner ring 14a and the inner peripheral surface of the outer ring 14b constituting the rotation support base 14, respectively. And the rotation support stand 14 is comprised in the state which inserted many steel balls between both V-grooves. Thereby, the rotation base 41, the slide support 13 mounted on the rotation base 41, the seat body 12 and the like can be rotated smoothly and without backlash.
[0019]
The rotation support base 14 is attached to the main base 50 of the front-rear direction support base 15. The main base 50 is attached to the vehicle floor F so as to be movable in the front-rear direction via a pair of left and right linear slide mechanisms 51, 51. As the linear slide mechanisms 51, 51, the same configuration as the linear slide mechanism 20 described above is used.
The sliding operation and rotation operation of the seat body 12 and the like in the vehicle front-rear direction are performed in conjunction with each other by the operation of the interlocking mechanism 60.
[0020]
The interlocking mechanism 60 has an arcuate pinion gear 61 attached to the lower surface of the rotation base 41, an intermediate gear 62 attached to the main base 50, and a rack 63 attached on the vehicle floor F. The pinion gear 61 is engaged with the intermediate gear 62, and the intermediate gear 62 is engaged with the rack 63. The pinion gear 61 is not formed with meshing teeth in a range of a predetermined angle α on the front side of the figure, and therefore the rotation operation of the seat body 12 and the sliding operation in the front-rear direction are not interlocked in this range. According to the interlocking mechanism 60 configured as described above, the seat body 12 and the like can be rotated about 90 ° to the left while sliding the seat body 12 and the like in the direction of the arrow in FIG. Usability is improved.
[0021]
Next, the operation of the vehicle seat 10 described above will be described. The vehicle seat 10 is in the state shown in FIG. 2 when the vehicle travels. In this state, the seat body 12 is located in the front direction of the vehicle in the rotational direction, and is located on the slide rear end side in the vehicle front-rear direction. The slide support 13 is positioned in a direction in which the longitudinal direction (the direction along the linear slide mechanism 20) is along the vehicle front-rear direction. Further, the L-shaped lifting bracket 76 of the lifting mechanism 70 is held at the lower limit position, and the inclination of the slide support 13 is held at the minimum value.
[0022]
Next, when the seated person of the vehicle seat 10 gets on and off, the seat body 12 is rotated to the door opening D side. Thus, while the seat body 12 is slid forward, the rotation operation is stopped toward the front end position in the vehicle front-rear direction by rotating the seat main body 12 toward the door opening D side and rotating approximately 90 degrees. The state at this stage is shown by a solid line in FIG. In the state shown by the solid line in FIG. 1, the seat body 12 is directed to the door opening D side, the vehicle front-rear direction is located on the slide front end side, and the slide support base 13 has its longitudinal direction along the vehicle width direction. It is gently sloping in the state.
[0023]
At this stage, the seat main body 12 is located on the rear end side (the indoor side, the right side in FIG. 2) in the vehicle width direction. Therefore, when the drive motor 30 of the slide support 13 is activated, the screw shaft 31 rotates and the movable member 21 moves. As a result, the seat body 12 moves along the guide member 22 while descending in the outdoor direction (state indicated by a two-dot chain line in FIG. 2). When the seat main body 12 reaches the outdoor movement end position or in the vicinity thereof, the motor 73 of the elevating mechanism 70 is activated to push up the rear portion of the slide support base 13, and the slide support base 13 is moved to the connection mechanism 72. The connecting pin 72c is pivoted upward. That is, the inclination of the slide support 13 is increased. As a result, the front end side of the movable member 21 of the slide support 13 is lowered by the amount that the rear portion of the slide support 13 is pushed up around the connection pin 72c of the connection mechanism 72, and the seat body 12 is further lowered. Therefore, the ground height of the seat body 12 at the boarding / alighting position can be lowered, and a passenger can easily get on and off.
[0024]
Next, in order to return the seat body 12 to the indoor side, the motor 73 of the elevating mechanism 70 is reversed to return the tilt of the slide support 13 to the original, and then the drive motor 30 of the slide support 13 is reversed. Thereby, the seat body 12 is returned to the vehicle interior side. Next, when the seat body 12 is rotated to the vehicle front side from this state, the seat body 12 slides to the vehicle rear side in conjunction with the rotation operation. As the seat body 12 is rotated, the slide support 13 is also rotated integrally, and finally returned to a position where the longitudinal direction is along the vehicle longitudinal direction.
[0025]
Thus, according to the vehicle seat 10 according to the present embodiment, since the inclination of the slide support 13 can be adjusted, the horizontal length of the guide member 22 constituting the slide support 13 is not increased. Thus, the ground clearance of the seat body 12 at the getting-on / off position can be made lower than before. Further, since the inclination of the guide member 22 is gentle in the vehicle interior, the position of the seat body 12 in the vehicle interior does not increase. For this reason, the vehicle seat 10 does not become bulky in the passenger compartment.
Further, since the guide member 22 (slide support base 13) is formed so as to be swingable in the vertical direction and the seat body 12 is largely lowered in the vicinity of the boarding / alighting position, the conventional slide support base 13 can be used as it is. .
[0026]
(Embodiment 2)
Hereinafter, based on FIG. 6, FIG. 7, the vehicle seat which concerns on Embodiment 2 of this invention is demonstrated. The vehicle seat according to the present embodiment eliminates the lifting mechanism 70 and the like by forming the slide support base 13 described in the first embodiment so as to bend downward, and the other structure is the first embodiment. This is the same as the vehicle seat 10 according to the above. For this reason, the same number is attached | subjected about the same member as the vehicle seat 10 which concerns on Embodiment 1, and description is abbreviate | omitted. Here, FIG. 6 is a side view of the vehicle seat according to the present embodiment, and FIG. 7 is a component diagram of the vehicle seat.
[0027]
As shown in FIGS. 6 and 7, the slide support base 93 of the vehicle seat 90 according to the present embodiment is formed by bending a fixed guide rail 95 a and a movable rail 94 b that constitute a pair of left and right slide mechanisms downward. Has been. The structure of the slide mechanism is the same as the structure of the linear slide mechanism 20 in the first embodiment. In FIG. 7, the fixed guide rail 95a is omitted.
As shown in FIG. 7, the front and rear portions of the movable rails 94b and 94b constitute a frame (movable member 94) on the side that is connected and slid by connecting bases 94e and 94f. The seat body 12 is attached to the movable member 94 via brackets 94x and 94y (see FIG. 6 and omitted in FIG. 7).
[0028]
A substantially box-shaped connection base 95w is attached between the rear ends of the fixed guide rails 95a and 95a constituting the slide mechanism, and a motor 96m as a drive source of the slide support base 93 is attached to the connection base 95w. Is installed. A screw shaft 96j is connected to the motor 96m via a reduction gear, and the other end side of the screw shaft 96j is rotated to a bracket 95y of a connection base 95z provided between the front end portions of both fixed guide rails 95a and 95a. Supported as possible. A nut 97 is screwed onto the screw shaft 96j.
[0029]
As shown in FIG. 7C, a pair of pins 97p protrude in the diameter direction on the outer peripheral surface of the nut 97, and these pins 97p are fixed to the connection base 94e of the movable member 94. Are inserted into the vertical elongated holes 97h (see FIG. 7B). For this reason, the nut 97 and the U-shaped bracket 97k are held so as to be relatively movable in the vertical direction and not to be relatively movable in the axial direction of the screw shaft 96j by the action of the vertically long hole 97h. Therefore, when the motor 96m is activated, the screw shaft 96j rotates and the nut 97 moves on the screw shaft 96j, and the movement of the nut 97 is transmitted to the movable member 94 via the U-shaped bracket 97k. The movable member 94 slides along both fixed guide rails 95a and 95a (hereinafter referred to as guide member 95a). It should be noted that the variation in the distance between the two rails 94 and 97 due to the difference between the moving track of the movable rail 94 and the moving track of the nut 97 is absorbed by the vertically long hole 97h of the U-shaped bracket 97k.
[0030]
The above-described slide support base 93 is fixed to the rotation base 41 by brackets 41b provided on both sides in the width direction of the rotation base 41 (see FIG. 6). The rotation support base 14 that supports the rotation base 41, the front-rear direction support base 15 that supports the rotation support base 14, and the like have the same structure as the vehicle seat 10 according to the first embodiment.
As described above, in the vehicle seat 90 according to the present embodiment, the movable member 94 and the seat main body 12 are structured to move downward along the guide member 95a that is curved downward, so that the seat main body 12 is mounted on the vehicle. It can be lowered slowly indoors and greatly lowered in the vicinity of the boarding / exiting position. For this reason, the mechanism which raises / lowers the guide member 95a used with the vehicle seat 10 which concerns on Embodiment 1 becomes unnecessary.
[0031]
(Embodiment 3)
Hereinafter, the vehicle seat according to the third embodiment of the present invention will be described with reference to FIG. The vehicle seat 100 according to the present embodiment includes a pair of coupling mechanisms 72 and a pair of lifting mechanisms 70 between the movable member 104 of the slide support base 103 and the seat body 12.
The connection mechanism 72 has the same structure as the connection mechanism 72 described in the first embodiment, and connects the rear end portion of the seat body 12 to the movable member 104 in a state in which the seat body 12 can be rotated up and down.
The elevating mechanism 70 has the same structure as the elevating mechanism 70 described in the first embodiment, and is disposed between the front portion of the seat main body 12 and the movable member 104 to raise and lower the front portion of the seat main body 12.
[0032]
The elevating mechanism 70 holds the seat body 12 in the normal position (upper limit position) when the vehicle travels, and operates when the seat body 12 reaches the vicinity of the getting-on / off position when getting on / off, and moves the seat body 12 from the normal position to the lower limit. Lower to position. As a result, the seat body 12 pivots downward about the coupling mechanism 72, the seat body 12 tilts forward, and the ground clearance of the tip portion 12f is lowered. For this reason, boarding / alighting property is improved. Further, the inclination of the seat body 12 can be arbitrarily adjusted when the vehicle is traveling.
[0033]
FIG. 9 shows a modification example of the lifting mechanism 70. 9 includes a rotary shaft 122 rotatably supported on a movable member 104 via a bearing (not shown), a motor 124 that rotates the rotary shaft 122 within a predetermined angle, It is composed of a pair of left and right link mechanisms 126 that operate with the rotational force of the rotating shaft 122. In the figure, only the right link mechanism 126 is shown.
The link mechanism 126 includes a first lever 126a and a second lever 126b. The first lever 126a is fixed to the rotary shaft 122 by welding or the like in a state where the first lever 126a is disposed at a right angle to the rotary shaft 122. ing. Further, the base end portion of the second lever 126b is rotatably connected to the distal end of the first lever 126a by a central connecting pin 126p. Further, a support plate 126u is rotatably connected to the tip of the second lever 126b via an upper connection pin 126x, and the support plate 126u is connected to the seat body 12 as shown in FIG. The sheet holder 16 is fixed.
[0034]
A rotating lever 125 is fixed to the rotating shaft 122 in a state of being arranged at a right angle to the rotating shaft 122, and a reciprocating motion shaft of the motor 124 is connected to the tip of the rotating lever 125 via a connecting pin 127. The tip of 124p is connected.
The motor 124 has a gear mechanism (not shown) inside, and a male screw 124n of the reciprocating shaft 124p is screwed into a female screw of a nut constituting the gear mechanism. For this reason, when the motor 124 is driven and the nut of the gear mechanism rotates in the forward rotation direction or the reverse rotation direction at a fixed position, the reciprocating motion shaft 124p moves forward or backward in the axial direction by the action of the screw. The motor 124 is attached to a motor base 128 that is fixed on the movable member 104 and can be turned up and down.
[0035]
With this structure, when the motor 124 is driven in the direction in which the reciprocating motion shaft 124p is advanced (the pushing direction), the reciprocating motion shaft 124p presses the tip of the rotating lever 125 to rotate the rotating shaft 122 rightward in the drawing. . As a result, the first lever 126 a of the link mechanism 126 rotates right (rotates upward), and the seat body 12 is pushed up by the link mechanism 126.
Further, when the motor 124 is driven in a direction in which the reciprocating motion shaft 124p is retracted (retracted direction), the reciprocating motion shaft 124p pulls the tip of the rotating lever 125 to rotate the rotating shaft 122 counterclockwise in the drawing. As a result, the first lever 126 a of the link mechanism 126 rotates counterclockwise (rotates downward), and the seat body 12 is pulled down by the link mechanism 126.
Therefore, by using this elevating mechanism 120, it is possible to adjust the inclination of the seat body 12 in the front-rear direction as described above.
[0036]
The slide support base 103 shown in FIG. 8 has a structure in which the movable member 104 is slid linearly. However, the slide support base 13 that can swing up and down as in the first embodiment may be used. A slide support base 93 formed so as to be curved downward as shown in FIG.
[0037]
In the first to third embodiments, the rotation support base 14 is placed on the front-rear direction support base 15, and the slide support bases 13, 93, 103 are placed on the rotation direction support base 14. Although the example in which the seat body 12 is placed on the slide support bases 13, 93, 103 has been shown, the front / rear direction support base 15 is placed on the slide support bases 13, 93, 103 as in the prior art. It is also possible to place the rotation support table 14 on the direction support table 15 and mount the seat body 12 on the rotation support table 14.
In the first to third embodiments, an example in which the passenger seat is the vehicle seat according to the present invention has been described. However, a seat other than the passenger seat may be the vehicle seat according to the present invention. is there.
Further, in the elevating mechanisms 70, 80, 120, a cylinder or the like can be used instead of a motor or the like.
[0038]
【The invention's effect】
  According to the present invention,A pair of left and right fixed guide railsThe ground height of the seat body at the boarding / alighting position can be made lower than before without increasing the length dimension of the vehicle, so that the ground height of the seat body at the boarding / alighting position can be made lower than before without increasing the size of the vehicle seat.
[0039]
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a first embodiment of the present invention, and is a view of a vehicle seat and a driver's seat as a passenger seat viewed from the rear of the vehicle. This figure shows a state in which the seat body of the vehicle seat is directed toward the door opening and slides in the vehicle width direction.
FIG. 2 is a view of the vehicle seat and the driver's seat as seen from the rear of the vehicle. It is the figure which looked at the vehicle seat and driver's seat as a passenger seat from the vehicle back. In this figure, the seat body of the vehicle seat is directed to the front of the vehicle.
FIG. 3 is a perspective view (A view) of a slide support base that constitutes a vehicle seat, and a BB arrow view (B view) of FIG.
FIG. 4 is a perspective view of a longitudinal support base, a rotation support base, and the like that constitute a vehicle seat.
FIG. 5 is a perspective view (A view) of an elevating mechanism constituting a slide support for a vehicle seat, and a perspective view (B view) of a modified example of the elevating mechanism.
FIG. 6 is a diagram showing Embodiment 2 of the present invention, and is a view of a vehicle seat as a passenger seat and a driver's seat as viewed from the rear of the vehicle. This figure shows a state in which the seat body of the vehicle seat is directed toward the door opening and slides in the vehicle width direction.
FIG. 7 is a perspective view (A) of a main part of a slide support base constituting the vehicle seat, a longitudinal sectional view (B) of FIG. A, and a perspective view (C) of a nut.
FIG. 8 is a diagram showing a third embodiment of the present invention, and is a view of a vehicle seat and a driver's seat as a passenger seat as viewed from the rear of the vehicle. This figure shows a state in which the seat body of the vehicle seat is directed toward the door opening and slides in the vehicle width direction.
FIGS. 9A and 9B are a perspective view (A view) and a side view (B view) showing a modification example of the lifting mechanism. FIGS.
FIG. 10 is a view showing a conventional vehicle seat, and is a view (A view) of the vehicle seat and a driver's seat as viewed from the rear of the vehicle. Moreover, it is the figure (B figure) which looked at the vehicle interior planarly.
[Explanation of symbols]
D: Door opening
6… Driver's seat
10 ... Passenger seat (vehicle seat)
12 ... Seat body
13 ... Slide support
14 ... Rotation support
15: Front / rear support stand
21 ... movable member
22 ... Guide member
70: Elevating mechanism (tilt adjusting means)
93 ... Slide support
103 ... slide support
120 ... Lifting mechanism

Claims (3)

A seat for a vehicle having a structure in which the seat body is movable along a pair of left and right fixed guide rails while being lowered from the vehicle interior to the outside of the vehicle,
The pair of left and right fixed guide rails is configured to be swingable up and down around a fulcrum, and the fixed guide rail is swung around the fulcrum by the operation of an inclination adjusting means, and the tilt of the fixed guide rail is adjusted. Yes,
The pair of left and right fixed guide rails are connected to a pair of left and right movable rails that are slidable along the fixed guide rails.
The vehicle seat, wherein the seat body is supported by the pair of left and right movable rails, and the seat body is configured to be movable outward from the fulcrum of the fixed guide rail . A seat for a vehicle having a structure in which the seat body is movable along a pair of left and right fixed guide rails while being lowered from the vehicle interior to the outside of the vehicle,
A pair of left and right fixed guide rails are formed curved downward so that the inclination increases as approaching the distal end side,
The pair of left and right fixed guide rails are coupled so that a pair of left and right movable rails that are also curved downward are slidable along the fixed guide rails,
A vehicle seat characterized in that the seat body is supported by the pair of left and right movable rails . A seat for a vehicle having a structure in which the seat body is movable while descending from the passenger compartment along the pair of left and right inclined fixed guide rails ,
The pair of left and right fixed guide rails are coupled with a pair of left and right movable rails configured to be slidable along the fixed guide rails with the same inclination as the fixed guide rails.
The seat body is supported by the pair of left and right movable rails via an elevating mechanism, and the operation of the elevating mechanism moves the front part of the seat body up and down to adjust the inclination of the seat body. Vehicle seat.

Images