JPH11321795A - Seat device for aircraft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further enhance safety of crews and passengers which are walking the aisle of a passenger compartment by providing the function of acting as a hand rail in a part of a seat, and prevent a footrest from damaging and occurring a failure when a normal state is changed over to a beddable state. SOLUTION: A back shell 90 is provided behind a backrest 70. In a condition in which the backrest 7 is tilted to a maximum angle to nearly level out, a back shell 90 is held to a position of reclining by tilting to an angle smaller than a tilting angle of the backrest, and the height of its upper surface is higher than the backrest 70, thereby protects privacy of passengers, and the back shell 90 functions as a hand rail when crews and passengers are walking. A seat part 15 advances after a footrest 110 is rotatably lifted to become nearly horizontal state and the backrest 70 is tilted to becomes a state of reclining. The backrest 70 is tilted to nearly horizontal state from the state of reclining in linkage with them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device installed in an aircraft cabin.

[0002]

2. Description of the Related Art As a seating apparatus of this type (hereinafter also referred to as a seat) installed in an aircraft cabin, a reclining type seat in which a backrest can be tilted rearward to change its tilt angle is generally used. is there. Recently, as a first class guest room, for example,
-258796 (hereinafter referred to as prior art) has been proposed. This seat provides passengers with more comfort and comfort during long flights,
A state in which the backrest is substantially upright (actually slightly inclined rearward) (normal state); a reclining state in which the backrest is further inclined forward and tilted backward by a predetermined angle; It adopts a structure that can take three modes of a horizontal state (bed state). Therefore, a seat that functions as a bed as well as a reclining seat is formed. The seat also has a backshell that covers the back and sides of the seat to protect passenger privacy.

The structure in which the backrest is tilted from the substantially upright normal state to the reclining state, and finally to the substantially horizontal bed state is such that the seat portion is largely advanced and the backrest is simultaneously moved forward. The structure in which the seat surface of the backrest and the backrest surface of the backrest are substantially horizontal and the same surface, and the structure in which the seat is not advanced and simply the backrest is only tilted and finally goes into the bed state through the reclining state There are two structures. In such a structure, a large space is required in front of the seat because the seat portion advances greatly in the bed state. on the other hand,
In the structure of, the backrest tilts greatly backward, so a large space is required behind the seat,
Discomfort to passengers sitting in the rear seats. Therefore, in any structure, there is a significant restriction when the seat is installed.

In an ergonomic structure,
When the seat moves forward and enters the reclining state, there is a problem that a space is easily formed between the waist and the backrest and the spine is easily bent, which causes a problem of discomfort.
Further, in the above structure, there is a problem that the backrest tilts greatly rearward from the reclining state, so that the head is lowered, so that discomfort is felt. Therefore, if the seat is moved forward after the backrest is in the reclining state, and the backrest in the reclining state is moved forward and tilted to a substantially horizontal state in conjunction with this, the stability at the time of movement is enhanced. Can be. Further, when the seat is moved, if the direction (angle) is changed and the seat is tilted about the waist (thigh) as the center of rotation, the sense of stability during the movement can be further enhanced.

[0005]

Among the conventional aircraft seats, a seat installed in a first-class cabin has a seat portion, a backrest, a leg rest, and the like. When the passenger is walking down the cabin aisle, the height of the backrest is approximately the same as the height of the seat or siderest if the backrest is tilted to a substantially horizontal position. Did not function as a handrail, and the aircraft could fall if it suddenly rocked or tilted.

Further, the legrest is controlled so as to rise and rotate in conjunction with the forward movement of the seat portion to be substantially horizontal, so that baggage or the like is placed on the floor in front of the seat. Thus, there is a problem that the leg rest hits the baggage or the like and the baggage or the like is sandwiched between the front seat and the leg rest, or the leg rest is damaged or broken.

Furthermore, in the above-mentioned prior art, there is a problem that the backshell does not tilt and always covers the back and side of the backrest, giving the passenger a feeling of blockage or isolation.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a back shell that covers the back of a backrest as a handrail to provide a handrail function. It is an object of the present invention to provide an aircraft seat device that further enhances the safety of crew members and passengers walking in a passage and protects the privacy of passengers in a bed state. It is another object of the present invention to provide an aircraft seat device that can reliably place a seat in a bed state without breaking or breaking a leg rest.

[0009]

According to a first aspect of the present invention, there is provided an aircraft seat device installed in a passenger cabin of an aircraft, wherein the seat portion has a legrest that is rotatable forward and retractable. And a backrest that has a lower end connected to the seat and tilts from a substantially upright state to a substantially horizontal state via a reclining state, and is provided to be tiltable behind the backrest, and the backrest is in a substantially upright state. And a back shell formed to be lower than the height of the backrest in a reclining state, wherein the backshell is tilted and held at a reclining position when the backrest is tilted at a maximum angle and is substantially horizontal. , Characterized in that the upper surface height is higher than the backrest.

[0010] The second invention is the above-mentioned first invention, wherein:
When the mode in which the seat, the backrest, and the legrest are set to the bed state is selected, the backrest is in a reclining state, from which the backrest and the seat advance, and the leg is moved before the seat advances. It is characterized in that the rest is controlled so as to rise and turn to a substantially horizontal state.

In the first invention, even if the backrest is tilted rearward at the maximum angle and becomes substantially horizontal, the backshell only tilts to the reclining position. It functions as a handrail for crew members and passengers walking. Also, when the seat is in a bed state, the backrest is covered behind and on both sides to protect passenger privacy.

In the second aspect of the present invention, since the seat portion operates and moves forward after the leg rest is lifted and turned to be completely horizontal, the baggage or the like is placed on the floor in front of the seat. Even so, the leg rest does not hit the baggage or the like to be damaged or broken. Also, after the backrest is tilted and reclined, the seat moves forward,
In conjunction with this, the backrest tilts further and becomes substantially horizontal, so that it has an ergonomically stable feeling when moving.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a plan view showing a first-class cabin of an aircraft in which a seat device according to the present invention is installed, FIG. 2 is an external perspective view of the seat device partially cut away and viewed obliquely from the left front, and FIG. FIG. 4 is an external perspective view of the seat device as viewed obliquely from the rear right, FIG. 4 is a plan view of the seat device, and FIG.
FIG. 6 is an exploded perspective view of main components of the seat device, FIG. 6 is a diagram showing a seat, a backrest, a leg rest, a footrest and a driving device in a normal state, and FIG. 7 is a seat, a backrest in a reclining state. FIG. 8 shows a state of the leg rest, the footrest, and the driving device, and FIG.
FIG. 3 is a diagram showing a state of a seat, a backrest, a legrest, a footrest, and a driving device in a bed state.

In this embodiment, an example will be described in which the present invention is applied to a one-seat seat developed for a first-class cabin of an aircraft. Further, in the present embodiment, the above-mentioned structure, that is, a structure in which the seat and the backrest are moved forward to be in a bed state is adopted.
It also has a backshell that covers the rear and sides of the seat to protect passenger privacy and pedestrians.

In FIG. 1, in a first class cabin 2 of an aircraft 1, a plurality of seats 3 are arranged along a body wall 1A at predetermined intervals in front and rear. These seats 3 are installed obliquely with respect to the center line of the aircraft such that the seats 3 face the interior of the aircraft, that is, face the nose when the passenger is seated. The seats 3 are arranged in a staggered manner, and have a side console 5 on one side. The side consoles 5 are arranged in a staggered manner so as to be alternately positioned inside and outside the seat 3. Accordingly, the front row of seats 3 is located in front of the side console 5, and the rear row of seats 3 is located right behind. The reason for arranging the seat 3 and the side consoles 5 in a staggered manner in this manner is that the seat 3 is in a bed state and a part of a footrest 130 described later,
When the passenger stretches out and lays down, the passenger's foot can be inserted from the rear into the storage portion 6 of the side console 5 located at the front, so that the front and rear seat spacing is relatively small. can do. The side console 5 will be described later.

Referring mainly to FIGS. 5 to 8, the seat 3 is a seat truck 1 laid on the floor of the cabin 2.
At 0, it is fixed via two pipes 11 (11a, 11b) so as to be movable and adjustable in the front-rear direction and detachably.
Therefore, when the pipe 11 is removed from the seat track 10, the seat 3 can be replaced together with the side console 5. The seat track 10 is laid in parallel with a predetermined interval in the left-right direction so as to be located below the seat 3 and the side console 5, and extends in the longitudinal direction of the body.

The two pipes 11 are formed of an extruded member such as an aluminum alloy, and are fixed substantially perpendicularly to the seat track 10 and slightly away from the floor via fixing brackets 12. I have. A pair of left and right bulkheads 13 constituting leg members of the seat 3 are fixed to the two pipes 11 so as to face the seat track 10. Although the pipe 11 has a circular cross section, the pipe 11 is not limited to this, and an appropriate shape may be used.

The pair of bulkheads 13 are formed in a bilaterally symmetrical plate body using an aluminum alloy or the like.
5 and as a frame member of the left and right armrests 16 to constitute a strength member of the seat 3. That is, the bulkhead 13 functions as a leg of the seat 15 by being fixed to the pipe 11 and holding the seat 15 movably in the front-rear direction. Further, it is covered by an inner panel unit 18 and a side panel unit 19, and its outside is further covered by a front cover 20, a rear cover 21, an outside panel 22 and an inside panel 23, and an arm cap 24 (see FIG. 5) is provided on the upper surface. When attached, they form an armrest 16 with them. The armrest 16 incorporates a table 25, an ashtray 26 and the like that can be pulled out.

At the lower ends of the front end and the rear end of each of the bulkheads 13, fitting holes 30 penetrating in the thickness direction are formed, and the pipes 11 are fitted into these fitting holes 30 from the side. The two pipes 11 and the bulkhead 13 are integrally connected by being combined and firmly fixed by the mounting bracket 31.

The seat section 15 includes a pair of left and right slide frames 33 and a seat body 34 installed on the slide frames 33. The pair of slide frames 33 has two connecting rods 3 on the front end side.
The lower end of a backrest 70, which will be described later, is rotatably connected to the rear end side. A plurality of connecting plates 37 are attached to the connecting rod 36 at appropriate intervals in the axial direction. The pair of slide frames 33 are arranged outside the bulkhead 13 so as to face in parallel with the bulkhead 13, and are supported by a slide mechanism 38 described later so as to be movable in the front-rear direction.

The seat body 34 has a bottom frame 4
0, a cushion 41 disposed on the bottom frame 40, a cloth 42 covering the cushion 41, and the like. The bottom frame 40 is formed in a flat plate shape, a lower surface at a front end portion is supported by an upper surface of the connecting rod 36, and a rotatable rolling element 44 such as a roller is provided at a rear end side. The rolling element 44 is connected to the bulkhead 13.
Is slidably inserted into a guide groove 43 formed along an upper edge portion of the inner surface of the backrest 70, and is located at a rear end portion of the guide groove 43 in a normal state in which the backrest 70 is substantially upright;
When the seat portion 15 is pulled forward together with the backrest 70, the seat portion 15 moves along a predetermined trajectory described later to a front end portion of the guide groove 43. The guide groove 43 is convexly curved so that the front half thereof draws a gentle curve upward, and convexly curved so that the rear half thereof draws a gentle curve downward, and is formed substantially in an approximately S shape as a whole. Have been. This is because when the backrest 70 is shifted from the reclining state to the substantially horizontal bed state, the seat body 34 is inclined with respect to the floor by lowering the rear end of the seat body 34 from the normal height in the initial stage. This is to return the bed to its original height when it is close to the bed state so that it is substantially parallel to the floor surface. If the angle (direction) is changed when the seat body 34 is moved in this manner, the seat body 34 can be tilted about the waist of the passenger as a center of rotation, so that the passenger can be tilted comfortably without giving a sense of instability. .

In FIG. 9, the slide mechanism 38 of the seat portion 15 includes two guide members 51 mounted on the outer surface of the bulkhead 13 via a base plate 50.
And two sliders 53 attached to the inner surface of the slide frame 33 via a base plate 52 corresponding to the guide members 51, and an intermediate slider 54 interposed between the guide members 51 and the slider 53. And so on.

The guide member 51 is formed in a plate shape, and has a semicircularly curved ball receiving portion 51a opposed to each other at the upper and lower ends, so that the sectional shape is a vertically long C-shape. The slider 53 is formed in the same shape as the guide member 51, has a vertically long C-shaped cross-section, and integrally has a semicircularly curved ball receiving portion 53 a opposed to each other at upper and lower ends. . The guide member 51 and the ball receiving portions 51a and 53a of the slider 53 are formed such that the outer surface is a convex curved surface and the inner surface is a concave curved surface.

The intermediate slider 54 has a plate 56
A ball receiving member 57 fixed on both sides of the plate 56 in upper and lower two rows, a plurality of balls 55, a retainer 58 for rotatably holding the ball 55 together with the ball receiving member 57, It is composed of a reinforcing plate 59 and the like fixed to the surface of 56. The upper and lower ends of the ball receiving member 57 are integrally provided with a ball receiving portion 57a that is curved in an arc shape and has the same radius of curvature as the ball receiving portions 51a and 53a of the slider 51 and the guide member 51. The ball receiving portion 57a is formed so that the outer surface is a concave curved surface and the inner surface is a convex curved surface, and the ball receiving portion 51a of the guide member 51 or the ball receiving portion 5 of the slider 53 is formed.
Together with 3a, a cylindrical space for rotatably housing the ball 55 is formed. The retainer 58 is formed of a thin metal plate, and is screwed to the reinforcing plate 59 by a fixture (not shown) without being in contact with the ball receiving member 57. A substantially horizontal bent portion 58a inserted between the ball receiving portion 51a and the ball receiving portion 57a or between the ball receiving portion 53a and the ball receiving portion 57a is formed at the upper and lower ends of the retainer 58. A plurality of holes into which the ball 55 is inserted are formed at regular intervals in the longitudinal direction of the retainer 58 in the bent portion 58a.

When the seat 15 is slidably supported by the slide mechanism 38, the intermediate slider 54
Moves forward along the guide member 51, and furthermore, the slider 53 moves forward along the intermediate slider 54. Therefore, when the backrest 70 is tilted to a substantially horizontal bed state, the seat 15 is moved forward. We can draw out greatly. Further, since there is no need to support the seat 15 with a caster-equipped leg or trolley, there is no need to mount a rail for casters, and the space below the seat 15 can be used effectively, and Equipment design and installation is easy. Further, since the seat 15 is held by the slide mechanism 38, there is no contact with the floor, so that even if the seat 15 moves, the floor or the carpet laid on the floor is not damaged.

5 to 8, in the space below the seat portion 15, a seat driving device 60 for moving the seat portion 15 in the front-rear direction and a leg rest driving device for operating a leg rest 110 described later. 120 are provided.

The seat driving device 60 includes a driving motor 6
1, an output rod 62 that can move forward and backward, and the drive motor 6
A reduction gear mechanism (not shown) for reducing the rotation of the first rotation and transmitting the rotation to the output rod 62. Drive motor 61
The front end is pivotally supported on the upper end of the support lever 64 via a connecting pin 65 in a vertically rotatable manner, and the rear end is not supported at all. The support lever 64 is attached to a bracket 63 provided on a pipe 11a located on the front side of the pair of pipes 11. The output rod 6
The front end of 2 is rotatably connected to the lower end of one plate 37a of a plurality of connection plates 37 attached to the connection rod 36 via a connection pin 39. As shown in FIG. 6, the connection plate 37a is formed in an irregular rhombus shape, and three portions at both front and rear ends and a lower end are used as connection portions. The reduction gear mechanism of the seat driving device 60 has a driven gear with which the output rod 62 is screwed.
Is moved in the axial direction without rotation. A gear having a screw hole and external teeth may be used as the driven gear.

When the drive motor 61 is driven to move the output rod 62 forward, the connecting plate 37a is pressed forward, so that the slide frame 33 moves forward along the slide mechanism 38. Therefore, the seat body 34 moves forward integrally with the slide frame 33, whereby the seat 15 is pulled out to the front of the bulkhead 13. At this time, the rolling element 44 is connected to the bulkhead 1.
3 moves forward along the third guide groove 43.

The backrest 70 includes a pair of left and right frames 73, a backsheet 74 provided between the frames 73, a headrest 75, and the like. The frame 73 is formed in a plate shape having a “U” shape when viewed from the side. It is pivoted freely. Further, two links 78,
79, and these links 78, 7
9 is supported by a frame 91 which forms a strength member of a back shell 90 described later via a rolling element 80 and a guide groove 83.

The connecting pin 77 is pivotally supported by a triangular protrusion 33a projecting from the upper surface of the rear end of the slide frame 33. The rolling element 80 is mounted on the top of a triangular bracket 84 mounted on the rear surface of the frame 73, and has a guide groove 8 formed in the frame 91.
3 so that it can roll freely.

The back shell 90 is provided with a backrest 7 to protect the privacy of the passenger using the seat 3 and to ensure the safety of the crew and passengers walking in the passage.
0, the pair of frames 91
And a plurality of connecting members 92 for connecting these frames 91, and a back shell cover 93 attached to the frames 91 and covering the back and sides of the backrest 70.
And so on. The lower ends of the pair of frames 91 are located between the pair of bulkheads 13,
5 so as to be tiltable in the front-rear direction.
As shown in (2), it is held in a state of being inclined backward by about 40 °. The guide grooves 83 are linearly formed on the inner surface of each frame 91 along the upper edge. In the normal state in which the backrest 70 is held in a state where the backrest 70 is substantially upright, as shown in FIG.
3 at the upper end. From this state, the back shell 90 is moved to a back shell driving device 100 described later.
When the backrest 70 is tilted rearward by a predetermined angle, the backrest 70 is also tilted in conjunction with this to be in a reclining state (FIG. 7), and further sinks in conjunction with the movement of the seat portion 15 in the forward direction. And is held in a substantially horizontal state (FIG. 8). At this time, the backrest 70 is pushed out so that the rolling element 80 moves forward along the guide groove 83 and sinks forward while tilting backward. When the backrest 70 is tilted rearward at the maximum angle and becomes substantially horizontal, the rolling element 80 is moved into the guide groove 83.
To the lower end.

The backshell driving device 100 comprises a driving motor 101, an output rod 102 which can move forward and backward, and
And a reduction gear mechanism (not shown) for transmitting the transmission gear 02 to the rear end of the pair of pipes 11 and the space between the connecting member 92 and the pipe 11b. The lower end of the drive motor 101 is rotatably connected to a bracket 104 attached to the pipe 11b via a connection pin 105. The output rod 102 is formed by a screw rod, and the upper end is engaged with the connecting member 92 from below through a metal fitting 106 having a concave shape in a side view. The output rod 102
The back shell 90 is supported in a substantially upright state by protruding upward by a maximum dimension in a normal state, and is pulled down by the drive of the drive motor 101 from this state. Therefore, the back shell 90 tilts backward by a predetermined angle about the rotation shaft 95 as a rotation center due to its own weight and the weight of the backrest 70, and stops at the position shown by the phantom line in FIGS. 7 and 8, that is, the reclining position. . The reduction gear mechanism of the backshell driving device 100 is as follows.
Similarly to the reduction gear mechanism of the seat driving device 60, the output rod 102 has a driven gear screwed therein.
02 is moved in the axial direction without rotation.

Here, the height of the back shell cover 93 does not change significantly even when the back shell 90 is tilted to the reclining position, and is slightly lower than the height of the upper surface of the back rest 70 in the substantially upright state and the reclining state. When the backrest 70 is in a substantially horizontal bed state, the height is designed to be higher than the height of the upper surface of the backrest 70 as shown in FIG. In addition, since the backrest 70 is tilted rearward and moved forward, the amount of rearward movement when the backshell 90 is tilted is small. When the height of the back shell 90 is kept substantially constant irrespective of the use mode of the seat 3 in this way, when a crew member or a passenger is walking in the cabin passage, the back shell 90 is walked while touching the back shell 90 in a natural posture. So that the aircraft does not fall over even if it shakes or tilts. Also, the back shell 90
Since the seat 3 is merely located behind the backrest 70 in the normal state or the reclining state, it does not give the passenger a feeling of blockage or isolation, and when the backrest 70 is in a substantially horizontal bed state, Since the passenger and the side are covered, the passenger is less likely to be seen by another passenger when lying down, and the privacy of the passenger can be protected. In addition, since the amount of movement when leaning is small, there is no discomfort to the passengers in the rear seats.

Below the front end of the seat 15, the leg rest 110 is mounted. The leg rest 110 has a U-shaped frame 111 that opens upward,
The frame 111 includes a leg rest main body 112 and the like that cover the frame 111. Both ends of the frame 111 are connected to connecting pins 114 at the front ends of the pair of slide frames 33.
Is rotatably supported via the. The leg rest main body 112 is formed in a box shape whose lower surface is open when it is hung down, a cushion is provided on the front surface side, and a footrest 130 is provided inside, and the footrest 130 is interlocked with the legrest 110. Part of the drawer mechanism 140, which will be described later, is stored. Such a leg rest 110 is generally held in a substantially vertical state (hanging state), and thus is located below the front end of the seat portion 15. When the seat 3 is switched to the reclining state, the leg rest drive is performed. By being rotated upward by the device 120, as shown in FIG.
When the state is switched to the bed state, as shown in FIG. 8, it is further rotated upward and held in a substantially horizontal state, and forms substantially the same plane with the seat portion 15 and the backrest 70. In the bed state, the leg rest 70 and the seat 1
5, the legrest 110 and the footrest 130
A bed surface that is not parallel to the floor surface but is inclined forward by about 3 ° or more is formed. This is because when the aircraft is in a normal cruise flight, the nose is raised by approximately 3 °, so that passengers can lie down with their heads higher than their feet.

The leg rest drive device 120 includes a drive motor 121, an output rod 122 that can move forward and backward, and a rotation of the drive motor 121 that is decelerated so that the output rod 1
22 and a reduction gear mechanism (not shown) for transmitting to the lower surface of the seat 15 and the pipe 1 together with the seat driving device 60.
1 are arranged in a space between the two. Drive motor 121
The plate 37 whose front end is attached to the connecting rod 36
a is rotatably connected to the rear end via a connecting pin 123, and the rear end is not supported. The output rod 122 is formed of a screw rod, and has a front end rotatably connected to the rear side of the leg rest 110 via a connecting pin 125.
Normally, as shown in FIG. 6, it is held in a state of being retracted backward by the maximum length. In this state, when the output rod 122 is moved forward by the driving of the drive motor 121, the legrest 110 is pressed from the rear, so that the legrest 110 is gradually raised and rotated around the connection pin 114, and the output rod 122 is moved forward. When it protrudes by the maximum length, it becomes a substantially horizontal state and forms substantially the same plane as the seat portion 15 (FIG. 8). The reduction gear mechanism of the legrest drive device 120 has a driven gear into which the output rod 122 is screwed, and does not rotate the output rod 122, similarly to the reduction gear mechanism of the seat drive device 60. To move back and forth in the axial direction.

The footrest 130 is shown in FIGS.
As shown in FIG. 10 to FIG.
And a plate-shaped main body 131 housed in the leg rest main body 112 so as to be able to be pulled out. The main body 131 has a slider 133 that slides along a guide rail 132 provided in the leg rest main body 112.

Pull-out mechanism 14 for footrest 130
Reference numeral 0 includes a drive arm 141 provided on the back side of the leg rest 110 and a relay link 142 incorporated in the leg rest main body 112. An upper end of the drive arm 141 is rotatably connected to a front end side corner of the connection plate 37a via a connection pin 143.
The connecting pin 143 is usually located below the center of rotation of the frame 111 (the center of the connecting pin 114).
When the footrest 130 rotates from the hanging state to a horizontal state, the footrest 130 moves rearward relative to the legrest main body 112 as shown in FIG.

The relay link 142 is rotatably disposed in the leg rest main body 112, and has one end 142a connected to the lower end 141a of the drive arm 141 via a long hole 145 and a pin 146, and the other end 142b. Is connecting pin 1
47 is connected to the main body 131. The connection pin 147 protrudes from the main body 131, penetrates an elongated hole 148 provided in the other end 142 b of the relay link 142, and is slidable in a vertical groove 149 formed in the inner surface of the leg rest main body 112. Has been inserted.

When the leg rest main body 112 is in the hanging state, the drive arm 141 is held in a substantially hanging state as shown in FIG. 6, and the lower end 141a is held in the lowest position as shown in FIG. I have. On the other hand, the relay link 14
2 is inclined upward to the right in the state shown in FIG. In this state, when the leg rest main body 112 rotates upward, the drive arm 141 also rotates and the lower end 141a moves to the rotation fulcrum side of the leg rest main body 112. Therefore, the relay link 142 rotates clockwise as shown in FIG. 12 and pushes the main body 131 forward of the legrest main body 112.

2 and 3, the side console 5 has a console body 151 formed in a substantially box shape whose upper surface is slightly higher than the upper surface of the armrest 16. The console body 151 is integrally connected to the seat 3 by being fixed to an extension 11A (FIG. 4) extending from one end of each of the pipes 11 through a mounting bracket (not shown). The storage section 6 is formed by opening the inside of the console body 151 rearward. The storage section 6 is used to store a part of the footrest 130 and feet when a passenger in a later seat inserts baggage such as a bag or lays down. Further, a storage section 152 for storing shoes and the like is provided below the storage section 6.

A TV monitor 153, a control panel 154, and a reading light 155 are provided on the upper surface side of the console body 151. The control panel 154 is provided with the driving devices 60 and 10 described above.
0, 120 and various control switches for turning on and off the TV monitor 153, the reading light 155, and the like. Further, a screen 157 for blocking the rear view and protecting the privacy of the passenger is provided at the rear end of the upper surface of the console body 151.
Is erected.

Next, the operation of the above-described sheet will be described. FIG. 14 is a flowchart when the seat 3 is shifted from the substantially upright normal state to the reclining state. In the normal state of the seat 3 (step 200),
The backrest 70 and the backshell 90 are held substantially upright as shown in FIG. The leg rest 110 is held in a hanging state, and the footrest 13
0 is completely stored in the leg rest 110. In order to switch the seat 3 from the normal state to the reclining state, the mode is selected, and the relax switch provided on the control panel 154 is operated to operate the drive motor 101 of the backshell drive device 100 (step 201). As a result, the output rod 102 is pulled down, so that the frame 91 gradually tilts rearward about the rotation shaft 95 as the rotation center. Therefore, the back shell 90 shifts from the state shown by the imaginary line in FIG. 6 to the reclining state in which the back shell 90 is inclined backward by a predetermined angle as shown by the imaginary line in FIG.

At this time, the backrest 70 is tilted rearward in conjunction with the backshell 90, and also enters the reclining state. That is, the frame 91 of the back shell 90
Is rotated rearward about the rotation shaft 95, the frame 73 of the backrest 70 is tilted about the connection pin 77 as a rotation center, and the rolling element 80 is tilted along the guide groove 83 of the frame 91. Move down and forward. As a result, the backrest 70 is tilted rearward by a predetermined angle to be in a reclining state. Thus, sheet 3
The switching operation from the normal state to the reclining state is
Back shell drive 90 by back shell drive device 100
This is performed by tilting the backrest 70 backward by a predetermined angle via the.

At this time, the driving motor 121 of the leg rest driving device 120 is also driven, and the output rod 122 presses the leg rest 110 forward.
In the state 0, the connecting pin 114 is rotated upward about the rotation center and is inclined at a predetermined angle. When the leg rest 110 rotates, the drive arm 141 is connected to one end 142 of the relay link 142.
a, the relay ring 142 is pulled backward.
11 rotates clockwise in FIG. 11 around the pin 147 as the rotation center as shown in FIG. At this time, the pin 147 is moved along the long groove 149 to the leg rest 11.
Move to the front end of 0. As a result, the footrest 130
Protrudes forward by a predetermined amount from the leg rest 110, so that the seat 3 is in a reclining state (step 20).
3). At this time, since the seat driving device 60 is not driven,
The seat 15 and the backrest 70 do not move forward.

In order to return the seat 3 from the reclining state to the normal state in which the seat 3 is substantially upright, the mode is selected, the backshell driving device 100 is driven, the output rod 102 is raised, the frame 91 is pushed up, and the backrest 70 is raised. You only have to stand. At this time, the leg rest driving device 120 is also driven. Therefore, the legrest 110 is pulled down and returns to the original hanging state, and the footrest 130 is housed in the legrest 110 by the pullout mechanism 140.

FIG. 15 is a flowchart when the seat 3 is shifted from the reclining state to the bed state. Reclining state shown in FIG. 7 (step 203)
In order to shift from FIG. 8 to the bed state shown in FIG. 8, a bed switch on the control panel 154 is operated (step 204). When this bed switch is operated, first, the legrest drive device 120 operates to operate the legrest 1.
10 is further rotated upward from the inclined state to the substantially horizontal state shown in FIG. At this time, the footrest 130 is further pulled out of the legrest 110 by the pullout mechanism 140 and projects forward of the legrest 110 (step 205).

Next, the seat driving device 60 is driven to move the seat 15 forward (step 206). At this time,
The slide frame 33 includes a slide mechanism 38 shown in FIG.
To move straight forward. On the other hand, the seat body 3
As described above, the rolling element 44 moves forward while changing its direction in the first half of the moving stroke because the rolling element 44 moves along the S-shaped guide groove 43 of the bulkhead 13, and after moving forward by a certain distance, the rolling element 44 returns to the original position. It returns to a substantially horizontal state.

When the seat 15 moves forward, the backrest 70 is dragged by the seat 15 and moves forward, and at the same time tilts backward at a maximum angle to be substantially horizontal. That is, since the backrest 70 is connected to the slide frame 33 by the connection pin 77, the backrest 70 moves forward with the slide frame 33 as the seat portion 15 moves forward. In addition, since the rolling element 80 moves downward along the guide groove 83, the backrest 70 tilts rearward with the connecting pin 77 as the center of rotation. As a result, the backrest 70, the seat 15, the legrest 110, and the footrest 130 form substantially the same plane, and are in a bed state (step 207).

Here, in order to switch from the reclining state to the bed state, the seat 15 and the leg rest 110,
The operation of the footrest 130 has a time difference. That is, the legrest 110 and the footrest 130
After the is in a substantially horizontal state, the seat 15 is moved forward. By operating with such a time lag, even if baggage or the like is placed on the floor in front of the leg rest 110, the leg rest 110 or the foot rest 130
Does not become an obstacle when the device operates, and the seat 3 can be reliably brought into the bed state.

In order to return from the bed state to the reclining state, it is sufficient to select a mode and operate the bed switch described above. At this time, contrary to the above, first, the driving motor 61 of the seat driving device 60 is driven to retreat the output rod 62, so that the seat 15 is moved rearward to return to the original normal position and the back is returned. The rest 70 retreats in conjunction with the seat 15. In addition, the drive device 100 for the back shell is also driven to rotate the backrest 70 via the frame 91 to bring the backrest 70 into the reclining state. Next, the leg rest driving device 120 is driven to rotate the leg rest 110 downward by a predetermined angle, and in conjunction with this, the foot rest 130
Is retracted and substantially half is accommodated in the leg rest 110.
That is, when the leg rest 110 rotates downward from a substantially horizontal state, the drive arm 141 moves forward relative to the leg rest 110 from the state shown in FIG. 12, and presses one end 142a of the relay link 142 forward. Therefore, the relay link 142 rotates counterclockwise in FIG. 12, the pin 147 moves leftward along the long groove 149, and the footrest 130 moves backward. As a result, the footrest 130 is substantially half housed in the legrest 110, and switches from the bed state to the reclining state.

In order to directly switch from the bed state to the normal state in which the bed is substantially upright, the mode may be selected and the bed switch may be operated. At this time, the backrest 70 rotates at the reclining position without pausing, and returns to a substantially upright state. In addition, the leg rest 110 also rotates downward to be in a hanging state, and the footrest 130 is completely accommodated in the leg rest 110. As a result, the state immediately switches from the bed state to the normal state in which the bed is substantially upright.

When switching from the substantially upright normal state to the bed state directly, the mode may be selected and the bed switch may be operated. At this time, first, the backshell driving device 100 is driven to tilt the backrest 70 by a predetermined angle, and then the legrest driving device 120 is driven to bring the legrest 110 and the footrest 130 into a substantially horizontal state. After that, the seat driving device 60 is driven to move the seat 15 forward, so that the backrest 70 is further tilted further rearward to a substantially horizontal state. As a result, the backrest 70, the seat 15, the legrest 110, and the footrest 130 form substantially the same plane, and switch from a substantially upright normal state to a substantially horizontal bed state.

As described above, in this embodiment, the privacy of passengers can be protected by the back shell 90, and the safety of pedestrians walking on the passage can be improved. That is, when the backrest 70 is tilted at the maximum angle and becomes substantially horizontal, the backshell 9
0 is tilted to the reclining position and the backrest 70
, And it is difficult for other passengers to see when lying down on the seat 3, and the privacy of the passenger lying down on the seat 3 can be protected. On the other hand, since it is usually located behind the backrest 70 and does not cover the sides, it does not give the passenger a feeling of blockage or isolation,
Comfort can be given to passengers. Further, even when the back shell 90 changes from a substantially upright normal state to a reclining state in which the back shell 90 is tilted, the height of the back shell 90 does not greatly change. You can walk while touching. Therefore, even if the body shakes or tilts, it does not fall down. Furthermore, since the amount of movement when leaning is small, it does not cause discomfort to other passengers in the rear seat.

The seat portion 15 moves forward after the leg rest 110 is lifted and rotated to be completely substantially horizontal, so that baggage or the like is placed on the floor in front of the seat 3. Also, the leg rest 110 does not hit the baggage or the like and is not damaged or broken. In addition, backrest 70
Is reclined by tilting in conjunction with the back shell 90. Thereafter, when the seat portion 15 moves forward, the seat portion 15 further tilts further forward while moving forward in conjunction with this to become a substantially horizontal state. It has a sense of stability when moving.

Further, since the seat 3 can be switched to three modes of a normal substantially upright state, a reclining state, and a bed state, during a long flight, it is possible to not only sit but also move the body backward. Defeat,
It can lie down and sleep, giving passengers more room and comfort.

In the present embodiment, an example of a single type sheet has been described, but the present invention can be applied to a sheet in which a plurality of sheets are integrally connected. Further, in the above-described embodiment, an example has been described in which the leg rest 110 is upwardly rotated in conjunction with the backrest 70.
It is also possible to perform the upward rotation alone or to perform the upward rotation before the backrest 70 tilts. Further, in the present embodiment, the seat is installed obliquely with respect to the fuselage center line so as to face the nose while the passenger is seated, but is not limited to this, and is installed so as to face the fuselage wall. Alternatively, the seats may be installed perpendicular to the centerline of the fuselage and parallel to each other.

[0057]

As described above, according to the aircraft seat apparatus of the present invention, the back shell is provided with a tiltable back shell, and when the backrest is substantially horizontal, the back shell is tilted to the reclining position. The backrest is configured to cover the rear and both sides of the backrest, so that it is difficult for other passengers to see and the privacy of the passenger lying on the seat can be protected. Therefore, comfort can be given to the passenger. In addition, the height of the back shell does not change significantly even when the backrest is tilted. When the backrest is tilted in a substantially horizontal state, the height is higher than this, so that the backrest functions as a handrail. Therefore, a crew member or a passenger walking in the cabin passage can walk while touching the back shell in a natural walking posture, and the aircraft does not fall even if it shakes or tilts. Furthermore, since the amount of backward movement is small, other passengers in the rear seat do not feel uncomfortable.

Further, according to the present invention, when the seat is switched from the normal state to the bed state, the seat is moved forward after the leg rest is lifted up and turned to a substantially horizontal state. Even if baggage or the like is placed on the floor in front of the seat, the leg rest does not hit the baggage or the like to damage or break the leg rest itself, and the baggage or the like is not damaged or damaged. Further, according to the present invention, after the backrest is tilted to the reclining state, the seat portion moves forward, and in conjunction with this, the backrest also moves forward and further tilts to a substantially horizontal state. , Ergonomically, it has a sense of stability at the time of movement and can further improve comfort.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first-class cabin of an aircraft in which a seat device according to the present invention is installed.

FIG. 2 is an external perspective view of the seat device, partially cut away, viewed from diagonally forward left.

FIG. 3 is an external perspective view of the seat device as viewed obliquely from the rear right.

FIG. 4 is a plan view of the seat device.

FIG. 5 is an exploded perspective view of main components of the seat device.

FIG. 6 is a diagram illustrating a state of a seat, a backrest, a legrest, a footrest, and a driving device in a normal state.

FIG. 7 is a diagram illustrating a state of a seat, a backrest, a legrest, a footrest, and a driving device in a reclining state.

FIG. 8 is a diagram showing a state of a seat, a backrest, a legrest, a footrest, and a driving device in a bed state.

FIGS. 9A and 9B are a cross-sectional view and a plan view showing a slide mechanism.

FIG. 10 is a diagram showing a state of a leg rest and a drawer mechanism in a normal state.

FIG. 11 is a diagram showing a state of the leg rest and the draw-out mechanism in a reclining state.

FIG. 12 is a diagram showing a state of a leg rest and a drawer mechanism in a bed state.

FIG. 13 is a side view of the drawer mechanism.

FIG. 14 is a flowchart when a seat is changed from a normal state to a reclining state.

FIG. 15 is a flowchart when a seat is changed from a reclining state to a bed state.

[Explanation of symbols]

1 ... body, 2 ... cabin, 3 ... seat, 15 ... seat, 16 ...
Armrest, 38: slide mechanism, 60: drive unit for seat, 70: backrest, 90: backshell, 10
0: Backshell drive device, 110: Leg rest,
120: leg rest driving device, 130: foot rest, 140: drawer mechanism.

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[Procedure amendment]

[Submission date] May 26, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 6

FIG. 13

FIG. 4

FIG. 5

FIG. 10

FIG. 14

FIG.

FIG. 7

FIG. 8

FIG. 9

FIG. 11

FIG.

Claims (2)

[Claims] 1. An aircraft seat device installed in a cabin of an aircraft, comprising: a retractable seat having a forwardly rotatable leg rest; and a lower end connected to the seat and a reclined state from a substantially upright state. A backrest that is tilted to a substantially horizontal state through the backrest, and a backshell that is provided to be tiltable behind the backrest and that is formed to be lower than the height of the backrest when the backrest is in a substantially upright state and in a reclining state. An aircraft seat, wherein the back shell is tilted and held at a reclining position in a state where the backrest is tilted at a maximum angle and is substantially horizontal, and an upper surface height is higher than the backrest. apparatus. 2. The aircraft seat device according to claim 1, wherein when a mode in which the seat, the backrest, and the legrest are set to a bed state is selected, the backrest is in a reclining state, and the backrest is changed from this state. And the seat is advanced, and the leg rest is controlled to be raised and rotated to be substantially horizontal before the seat advances.