JP3639886B2 - Lifting and rotating rear seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rear seat that can be used for getting in and out of a passenger car, and that can be turned up and down, particularly for a disabled person and an elderly person.
[0002]
[Prior art]
In recent years, passenger cars for the disabled and elderly have been manufactured in one-box cars, and side lift-up seats have been used as seats for such passenger cars.
[0003]
FIG. 10 is a schematic view showing a conventional side lift-up seat. In FIG. 10, (a) is when the door is opened, (b) is when the seat is rotated, (c) is when the sheet is pulled out, (d) FIG. 3 is an external view showing when the seat is lowered.
As shown in FIG. 10, the side lift-up seat 3 for the handicapped and elderly people in the conventional passenger car 1 is opened by sliding the door 2 manually, for example (see FIG. 10 (a)), and then the seat 3 is opened. Rotate manually in the direction (see FIG. 10 (b)), further tilt the footrest 5 forward, and manually pull out or push out the seat 3 along the slider (see FIG. 10 (c)). Finally, the seat 3 is lowered by the electric mechanism (see FIG. 10D), and the step between the seat 3 and the road surface is minimized to facilitate boarding / exiting.
Such a side lift-up seat 3 requires a seat rotation mechanism, a slide mechanism, and a lift mechanism. Since the mechanisms are complicated, the side lift-up seat 3 is limited to a separate seat compatible type.
[0004]
[Problems to be solved by the invention]
However, for sedan-type passenger cars that are often used together by family members, seats for the disabled and elderly, especially sedan-type three-seat fixed rear seats, go out of the car while sitting on the seat. There has not yet been a seat for disabled or elderly people who can get on and off easily with the minimum difference from the road surface.
[0005]
In view of the above-mentioned problems, the present invention is capable of moving up and down while being able to go out of the vehicle while sitting on a seat, even in a sedan type fixed seat as well as a one-box car, and to reduce the level difference from the road surface. The purpose is to provide a rear seat.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a lifting / lowering rotating rear seat according to claim 1 is a lifting / lowering rotating rear seat that is provided on a door side of a passenger car and includes a seat cushion and a backrest that are separable from a fixed seat. And a support plate formed at a predetermined angle as a base of the back and the backrest, and a rotation pin disposed at a predetermined position of the support plate, and the rotation pin is moved up and down by the rotation of the gear shaft And a rotation mechanism that rotates around a rotation shaft provided on the rear side of the vehicle with respect to the central axis of the seat cushion, and the rotation pin is supported by the rotation of the gear shaft. by leveling the seat cushion is lowered together with the gap formed between the fixed seat and back, constituting a seat cushion pivotally It was.
[0007]
Further, the lifting / lowering rotating rear seat according to claim 2 is separable from a fixed seat of a passenger car , and is seated on the door side rear seat that is allowed to come out of the passenger entrance and exit while being seated. A support plate formed at a predetermined angle as a base of the base plate, a base frame that is rotatably supported at the corner of the support plate, and a rotation shaft that is eccentric to the vehicle outer side from the central axis of the base frame. The base frame body is provided with a support column, a guide rail on which the base frame body slides in the forward / reverse rotation direction around the column, and a rotation pin disposed at a predetermined position of the support plate. And a jack arranged to move the rotation pin up and down by the rotation of the gear shaft, and the rotation pin moves down together with the support plate by the rotation of the gear shaft. By leveling the seat, a gap is formed between the fixed seat and the backrest, and the base frame rotates around the column along the guide rail so that the seat cushion comes out from the entrance The configuration is as follows.
[0008]
In yet elevating rotation rear seat according to claim 3, wherein the jack, one end of the jack shaft coupled about said pivot pin is connected to the movable post, by connecting the other end of the jack shaft fixed post In addition, the movable support column is moved by the rotation of the gear shaft, and the rotation pin is lowered together with the support plate to make the seat cushion horizontal .
[0010]
In the up-and-down rotating rear seat according to claim 1 , the backrest is separated from the fixed seat by opening the door of the passenger car and operating the jack mechanism to level the seat cushion, so that the backrest forms the fixed seat. The lifting / lowering rear seat can be rotated without being caught, and as a result, only the lifting / lowering rotating rear seat is separated from the fixed seat, and this rear seat comes out of the passenger car door to the outside of the vehicle. Therefore, not only a one-box car but also a sedan type passenger car, for example, can be provided with a lifting / lowering rear seat, and the user can get out of the passenger car by simply rotating the seat cushion while seated.
[0011]
Further , in the up-and-down rotating rear seat according to claim 2, the gear shaft is rotated forward and backward , for example, manually or electrically, and the jack moves up and down. When the jack is lowered a predetermined distance, the seat cushion becomes horizontal, the backrest is separated from the fixed seat, and a gap is generated. When the base frame rotates along the guide rail around the eccentric shaft of the rotating shaft, a part of the seat cushion comes out of the vehicle, and the ground clearance of the seat cushion is also lowered. Accordingly, since the rotating shaft of the up-and-down rotating rear seat is eccentric to the outside of the vehicle, it is possible to position the up-and-down rotating rear seat on the outside of the vehicle simply by horizontally or manually rotating the seat cushion, and the seat cushion. This makes it possible for the disabled and elderly to easily get on and off passenger cars.
[0012]
Furthermore, in the up-and-down rotating rear seat according to claim 3, when the gear shaft rotates in the forward direction, the movable column of the jack moves, and the support plate is lowered by a predetermined distance as the rotation pin of the jack is lowered together with the support plate. The seat cushion is level. At this time, a gap is generated between the fixed seat and the backrest, so that the up-and-down rotating rear seat can be rotated.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the up-and-down rotating rear seat of the present invention will be described with reference to FIGS.
FIG. 1 is a partial cross-sectional view showing a state in which the up-and-down rotating rear seat of the present invention is housed in a three-seat rear seat.
As shown in FIG. 1, the up-and-down rotating rear seat 30 is provided as a base part of the seat cushion 11 and the backrest 44 and is disposed so as to protrude from both sides of the support plate 22 formed at a predetermined angle. A rotation pin 23, a base frame 24 that rotatably supports the rotation pin 23, and a rotation around the rotation axis X that supports the base frame 24 and is eccentric from the central axis of the up-and-down rotation rear seat 30. The support column 15 to be moved and the guide rail 16 for sliding the base frame body 24 in the rotation direction around the support column 15 are provided.
[0015]
The support column 15 serving as the rotation axis X in the up-and-down rotating rear seat 30 is provided on the rear side outside the vehicle on the door side to be opened and closed with reference to FIG. 9 described later. In FIG. 1, 26 indicates a vehicle floor, 32 indicates a road surface outside the vehicle, and H indicates the ground height of the seat cushion 11.
[0016]
Further, referring to FIG. 1, in the base frame 24, a drive motor 20, a power transmission member 21 that transmits forward / reverse rotation of the drive motor 20 to the gear shaft 18, and both ends of the gear shaft 18 are supported. Brackets 12 and 12 and a jack 17 that is engaged with a rotation pin 39 disposed at a predetermined position of the support plate 22 and is moved up and down by the rotation of the gear shaft 18 are provided. . The height of the jack 17 shown in FIG. 1 indicates a state in which the up-and-down rotating rear seat is stored in the three-seat rear seat 40 and used, for example.
[0017]
FIG. 2 is a partial cross-sectional view of the up-and-down rotating rear seat when the seat cushion is leveled . As shown in FIG. 2, it becomes the seat cushion 11 is horizontally on the basis of a predetermined height of the jack 1 7 so as occurs clearance B between the backrest 44 and the three-seat rear seat 40. At this time, the footrest 14 is rotated by the pin 13 and is fixed in the horizontal position.
[0018]
FIG. 3 is a detailed sectional view of the jack and guide rail of the up-and-down rotating rear seat.
Referring to FIG. 3, the guide rail 16 has a base frame body via a bearing ball 32 between a bearing 25 projecting from the lower portion of the base frame body 24 and a retainer 34 fixed to the floor 26 of the vehicle. A rail 36 serving as a guide is formed at the lower part of the base frame body 24 so as to cover the outside of the end portion of the retainer 34.
[0019]
Further, the jack 17 has jack shafts 37 and 37 connected around a rotation pin 39, one end is connected to the movable support 19, and the other end is connected to the bracket 12 which is a fixed support, and the gear shaft 18. The jack 17 is moved up and down by the forward and reverse rotations. Further, the footrest 14 is attached to the front end portion of the base frame 24 so as to be rotatable by the pin 13. Here, the footrest 14 shown by a dotted line in FIG. 3 indicates a non-use state. At this time, the footrest 14 is locked to the seat cushion 11 and is fixed at a horizontal position (shown by a solid line) during use.
[0020]
Although not shown, stoppers are provided at both ends of the guide rail 16 so as to be movable only within a predetermined range, and a lever for fixing the up-and-down rotating rear seat is provided at each stopper position. In the present embodiment, the lifting / lowering rear seat can be manually rotated by releasing the engagement of the lever, but the mechanism for rotating the base frame 24 around the support column 15 forward and backward using the drive motor 20 described above. It is also possible to rotate the motor electrically.
[0021]
Further, referring to FIGS. 4 and 5 to be described later, the up-and-down rotating rear seat 30 has an armrest 42 that becomes a seat when tilted in a horizontal state, and this armrest 42 is an arm fixed at a predetermined position of the base frame 24. 45 and is configured as a part of a three-seat rear seat. In the present embodiment, the up-and-down rotating rear seat of the present invention is provided on one door-side rear seat, but it may be provided on the left and right door-side rear seats.
[0022]
The lifting / lowering rotating rear seat 30 of the present invention is configured as described above, and the rotating shaft is provided at the time of getting on and off by a rotating mechanism provided so that the rotating shaft X comes to be eccentric from the central axis of the lifting / lowering rotating rear seat 30. The up-and-down rotating rear seat 30 is rotated, for example, manually or electrically around X, and the up-and-down rotating rear seat comes out of the entrance / exit 43 from the three-seat rear seat 40 toward the door, and the position of the seat cushion 11 is lowered. Is locked.
[0023]
Next, the operation of the up-and-down rotating rear seat of the present invention will be described.
FIG. 4 is an external view of a three-seat rear seat that houses the up-and-down rotating rear seat of the present invention, and FIG. 5 is a partial front view of FIG. FIG. 6 is an external view showing the up-and-down rotating rear seat when the seat cushion is leveled, and FIG. 7 is a partial front view of FIG. Furthermore, FIG. 8 is an external view at the time of getting on and off of the raising / lowering rear seat of this invention. FIG. 9 is a partial plan view of FIGS. 6 and 8.
[0024]
When boarding / exiting using the up-and-down rotating rear seat of the present invention, referring to FIGS. 4 and 5, first, the armrest 42 serving as the seat is set up in the vertical direction. At this time, a gap A is formed between the adjacent rear seat and the armrest 42 as shown in FIG.
Next, referring to FIGS. 2, 6, and 7, the gear shaft 18 rotates in the forward direction via the power transmission member 21 by driving the drive motor 20 for a predetermined time. As the gear shaft 18 rotates, the movable column 19 of the jack 17 moves. As the pivot pin 39 of the jack 17 moves down together with the support plate 22, the support plate 22 is lowered by a predetermined distance, and the seat cushion 11 becomes horizontal. At this time, as shown in FIGS. 2 and 6, a gap B is formed between the three-seat rear seat 40 and the backrest 44. Due to the gaps A and B, the armrest 42 and the backrest 44 are not caught by the adjacent rear seat 40 even when the up-and-down rotating rear seat is rotated.
[0025]
Further, referring to FIGS. 8 and 9, when the lever is released and rotated manually, for example, manually along the arrow C indicating the movement of the guide rail 16 around the eccentric rotation axis X of the up-and-down rotating rear seat 30, FIG. As shown by a two-dot chain line 9, a part of the up-and-down rotating rear seat 30 comes out of the vehicle, and the ground height H of the seat cushion 11 is also low. Finally, the rotating mechanism is locked to fix the up-and-down rotating rear seat.
The above is the operation when getting off, but when getting on, the lifting and rotating rear seat can be used by the reverse operation.
[0026]
As described above, in this embodiment, since the rotation shaft of the up-and-down rotating rear seat is eccentric to the outside of the vehicle, the up-and-down rotating rear seat is positioned outside the vehicle only by rotating the seat cushion horizontally or manually or electrically. The seat cushion can be raised to an appropriate height.
Therefore, a disabled person or an elderly person can easily get on and off a passenger car or the like by the up-and-down rotating rear seat.
[0027]
【The invention's effect】
As understood from the above description, in the lifting and rotating rear seat according to claim 1, when the passenger door is opened , the jack mechanism is operated to level the seat cushion, and the seat cushion is rotated by the rotation mechanism, Only the lifting / lowering rotary rear seat is separated from the fixed seat, and this rear seat goes out of the vehicle through the passenger car door. It has the effect of being able to get out of the passenger car. Further, when the seat cushion is leveled by the operation of the jack mechanism, the backrest is separated from the fixed seat, and a gap is generated. Therefore, there is an effect that the up-and-down rotating rear seat can be rotated without the backrest being caught by the fixed seat.
[0028]
In the up-and-down rotating rear seat according to claim 2, for example, when the gear shaft is rotated forward or backward manually or electrically to move the jack up and down, when the jack is lowered by a predetermined distance, the seat cushion becomes horizontal, and the base frame When the body is rotated along the guide rail around the eccentric support shaft, a part of the seat cushion comes out of the vehicle and the ground clearance of the seat cushion is also lowered. Based on the fact that the seat cushion is eccentric in the outward direction, it is possible to position the lifting / lowering rear seat on the outside of the vehicle simply by turning the seat cushion horizontally and manually or electrically, and to raise the seat cushion to an appropriate height. Has an effect. Therefore, a disabled person or an elderly person can easily get on and off a passenger car or the like.
[0029]
Further, in the up-and-down rotating rear seat according to claim 3, for example, when the gear shaft rotates in the forward direction manually or electrically, the movable column of the jack moves, and the support plate moves as the jack rotation pin descends together with the support plate. The seat cushion is lowered by a predetermined distance and becomes horizontal. At this time, a gap is generated between the fixed seat and the backrest, so that the up-and-down rotating rear seat can be rotated.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view showing a state in which an up-and-down rotating rear seat of the present invention is housed in a three-seat rear seat.
FIG. 2 is a partial cross-sectional view of an up-and-down rotating rear seat when the seat cushion is leveled.
FIG. 3 is a detailed cross-sectional view of a jack and guide rail of a lifting and rotating rear seat.
FIG. 4 is an external view of a three-seat rear seat that houses the up-and-down rotating rear seat of the present invention.
FIG. 5 is a partial front view of FIG. 4;
FIG. 6 is an external view showing the up-and-down rotating rear seat when the seat cushion is leveled.
7 is a partial front view of FIG. 6. FIG.
FIG. 8 is an external view of a lifting / lowering rotating rear seat according to the present invention when getting on and off.
9 is a partial plan view of FIGS. 6 and 8. FIG.
FIGS. 10A and 10B are external views showing a conventional side lift-up seat, where FIG. 10A is when the door is opened, FIG. 10B is when the seat is rotated, FIG. 10C is when the sheet is pulled out, and FIG. Indicates the time.
[Explanation of symbols]
11 Seat cushion 12 Bracket 13 Pin 15 Post 16 Guide rail 17 Jack 18 Gear shaft 19 Movable post 22 Support plate 24 Base frame body 25 Bearing 30 Lifting and rotating rear seat 34 Retainer 36 Rail 37 Jack shaft 40 Three-seat rear seat 42 Armrest 44 Backrest

Claims (3)

A lifting and rotating rear seat that is provided on a door side of a passenger car and includes a seat cushion and a backrest that are separable from a fixed seat ,
A support plate formed at a predetermined angle as a base of the seat cushion and the backrest;
A jack mechanism that engages with a rotation pin arranged at a predetermined position of the support plate and is arranged to move the rotation pin up and down by rotation of a gear shaft;
A rotation mechanism that rotates around a rotation axis provided on the vehicle exterior rear side with respect to the central axis of the seat cushion,
As the gear shaft rotates, the pivot pin descends together with the support plate to level the seat cushion, thereby forming a gap between the fixed seat and the backrest, and pivoting the seat cushion. An up-and-down rotating rear seat , characterized in that it can be configured . In the door-side rear seat, which is separable from the fixed seat of the passenger car and can be taken out from the entrance of the passenger car while seated,
A support plate formed at a predetermined angle as a base part of the seat cushion and the backrest, and a base frame body rotatably supported at the corners of the support plate;
A support column positioned on a rotation shaft that is eccentric to the vehicle outer side from the central axis of the base frame body;
The base frame body engages with a guide rail in which the base frame body slides in the forward / reverse rotation direction around the support column, and a rotation pin disposed at a predetermined position of the support plate, and a gear provided in the base frame body A jack arranged to move the pivot pin up and down by the rotation of the shaft,
As the gear shaft rotates, the pivot pin descends together with the support plate to level the seat cushion, thereby forming a gap between the fixed seat and the backrest, and the base frame is An up-and-down rotating rear seat characterized in that the seat cushion comes out of the vehicle from the entrance / exit by turning around the support post along a guide rail . The jack has one end of a jack shaft connected around the pivot pin connected to a movable support column, and the other end of the jack shaft connected to a fixed support column,
The lifting / lowering rotating rear seat according to claim 2, wherein the movable support column is moved by the rotation of the gear shaft and the rotating pin is lowered together with the support plate to level the seat cushion .

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