JP2521810Y2 - Swingable reclining seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a so-called reclining seat used as a vehicle seat, and more particularly, to a reclining seat in which the seat and a seat back can swing with respect to a seat frame. It is about.

(Prior Art) Seats used in vehicles such as aircraft, trains, and long-distance buses, depending on the user's preference,
Alternatively, in order to keep the user in a comfortable position, a reclining seat that can freely adjust the angle of the seat back, that is, allows reclining, is generally adopted.

This kind of reclining seat exerts its power when, for example, in a long-distance bus or the like, the seat back falls significantly backwards and becomes a bed shape that allows the user to take a nap as a whole. In other words, this type of reclining seat is also used as a bed for a nap, but in such a case, it is necessary to allow the user to take a sufficient rest.

In general, a person can take sufficient rest when his / her feet are at the level of the heart, and this posture should improve blood circulation throughout the body. Because it can be. Therefore, if this type of reclining seat can form a horizontal surface on which the user can completely lie down by the seat and the seat back which is greatly lowered, it is convenient for taking a nap using this reclining seat. Yes, but it is not possible. This type of reclining seat is placed between the reclining seats in order to make effective use of the interior space of the vehicle, and there is almost no space to make all the reclining seats horizontal. Because there is no.

Therefore, the inventors of the present invention have conducted various investigations as to whether reclining seats capable of raising the position of the feet to the position of the heart have been examined. No suitable device was found other than the "backrest tilting type seat surface adjusting device" which has already been proposed in Japanese Patent No. 66949. These "the seat tilt adjustment device of the back-tilt type seat" which the applicant has already proposed,
Although the front and rear inclination angles of the seat portion can be changed according to the inclination angle of the backrest, the position of the feet during nap was not actively raised.

(Problem to be solved by the present invention) The present invention has been made in view of the above-described actual situation of this type of reclining seat, and the problem to be solved is when the reclining seat is used as a bed for a nap. In addition, how to bring the position of the user's foot to the position of the heart to enable easy use.

The purpose of the present invention is to make it possible to adjust the angle of the seat back, and when the seat back is completely depressed, the seat is moved upward in conjunction with the seat back, thereby making it easier. It is to provide a reclining sea that can take a nap in a simple posture with a simple configuration.

(Means for Solving the Problems) In order to solve the above problems, first, the means adopted by the invention according to the first claim will be described with reference numerals used in the embodiments. ) The seat (20) that is arranged to be tiltable on the upper side and the support plate (2
1) A reclining seat (100) having a seat back (30) whose lower end is rotatably connected to a rear end thereof. The reclining seat (100) is provided on a seat frame (10) and on both sides of the seat (20). A suspension plate (22) integral with the support plate (21) constituting the seat (20) and a seat back frame (31) of the seat back (30) are integrated with the fixedly arranged support frame (12) And the support plate (32) provided in a rotatable manner,
An elongated hole (25) formed on the front end side of the support plate (21) on the seat (20) side and a lower end of the seat back frame (31) of the seat back (30) are connected by a link arm (34), A swingable reclining seat (100) "characterized in that the front end of the seat (20) is moved up and down via a link arm (34) in accordance with the tilt of the seat back (30).

That is, this reclining seat (100) is a seat (2) that is tiltably disposed on a seat frame (10).
0) The link arm having the rear end pivotally connected to the lower end of the seat back (30) and the front end of the seat (20) connected to the lower end of the seat back frame (31) of the seat back (30). (34) which is connected at the tip,
Thus, when the seat back (30) is greatly tilted, the front end of the seat (20) is moved upward in conjunction with the movement of the seat back (30).

Means adopted by the device according to the second claim is to connect the seat (20) and the seat back (30) to the reclining seat (100) of the first claim, The connecting pin (23) formed at the rear end of the supporting plate (21) is formed into an elongated hole (3) formed in a supporting plate (32) integral with the seat back frame (31) on the seat back (30) side.
3) It is designed to engage inside.

That is, in the reclining seat (100) according to the second claim, when the seat back (30) is greatly tilted, the rear end of the seat (20) interlocked with the reclining seat (30) is larger than the lower end of the seat back (30). The seat (20) and seat back (3
0) This is to prevent a large space between them.

(Mode of Operation and Use of the Invention) Next, the operation of each reclining seat configured as described above will be described together with the mode of use.

First of all, use this reclining seat in normal use,
That is, the operation in the state as shown in FIG. 1 will be described.
Is connected to a support frame (12) erected on both upper sides of the seat frame (10) via a pivot shaft (13) by a suspension plate (22) provided integrally on both sides of the seat frame (10). When a part of the support plate (21) of the seat (20) abuts on the upper surface side of the seat frame (10), the seat (20) is tiltably disposed on the seat frame (10).

The seat (20) is connected to the connecting pins (23) provided on the rear end side of the support plate (21) by the seat back (30).
The lower end of the seat back (30) is connected to the lower end of the seat back (30) by engaging with the elongated hole (33) of the support plate (32) integral with the seat back frame (31). Slot (2) provided on the front end side of the plate (21).
In 5), the front end of the link arm (34) connected to the lower end of the seat back frame (31) on the seat back (30) side is engaged, so this seat (20) is It can be linked in response to tilting. This state is maintained by locking the driving device (35) disposed on the lower surface side of the seat frame (10). The body of the user using the reclining seat (100) in this state is as shown by the imaginary line in FIG.

Here, when the user wants to adjust the angle of the seat back (30), that is, to perform reclining, the driving device (3
Unlock the lock in 5) and push the seat back (30) with force on its back. The seat back (30) has a support plate (32) integrally provided at a lower end of a seat back frame (31) constituting the seat back (30) rotatably connected to a support frame (12) side of the seat frame (10). Therefore, as shown in FIG. 2, it is tilted about the rotation shaft (13) on the support frame (12) side. At this time, the support plate (32) on the seat back (30) side and the support plate (21) on the seat (20) are connected to the elongated hole (33) of the support plate (32) and the connecting pin ( 23), the support plate (32) on the seat back (30) side has the connecting pin (23) on the seat (20) side with an elongated hole (3).
Do not push the sheet (20) side until it is at the other end of 3). Similarly, a link arm (34) connecting the front end of the seat (20) and the lower end of the seat back (30).
Since the front end of the link arm (34) is engaged in the elongated hole (25) formed in the connecting plate (24) on the seat (20) side, the front end of the link arm (34) is The seat (20) is not moved until it comes into contact with the front end of the sheet (20).

That is, the length of the elongated hole (25) formed in the connecting plate (24) on the seat (20) side and the length of the support plate (3
The tilt of the seat back (30) does not interlock with the seat (20) within a range corresponding to the length of the elongated hole (33) formed in 2). In the above range, the seat back (30) tilts without affecting the seat (20). Within such a range, the user can tilt only the seat back (30), that is, the angle adjustment can be performed. The reclining seat (100) can perform the same reclining as a normal reclining seat.

When the user wants to take a nap using the reclining seat (100) as a bed, the following is performed. That is, the user releases the locked state of the driving device (35) and tilts the seat back (30) further rearward. Then, the connecting pin (23) located at the rear end side of the seat (20)
Abuts against the other end of the elongated hole (33) formed in the support plate (32) on the seat back (30) side and is pushed by the support plate (32). Is pushed slightly below and forward of the seat frame (10). At the front end of the seat (20),
The front end of the link arm (34) connected to the seat back (30) is in contact with the front end of the slot (25) as shown in the figure.
The side connecting plate (24) is pushed forward. By the way, the seat (20) can be turned on the support frame (12) of the seat frame (10) by the turning shaft (13) by the suspension plate (22) provided integrally with the support plate (21). The seat (2) pushed forward through the support plate (32) on the side of the seat back (30) and the link arm (34).
0) swings about the rotation axis (13) of the support frame (12).

As described above, when the seat back (30) is completely tilted as shown in FIG. 2, the seat (20) is in a state where its front end is moved upward with respect to the seat frame (10). It is. As a result, this reclining seat (10
0) The body of the user lying on the upper side is in the state shown by the imaginary line in FIG. 2, and its feet are positioned at the height of the heart by the seat (20), thereby improving blood circulation. The user can sleep on the reclining seat (100) in a posture that can be moved to a comfortable position.

In particular, the reclining seat (10
In (0), the connection between the seat (20) and the seat back (30) is performed by connecting the connecting pin (23) formed at the rear end of the support plate (21) constituting the seat (20) to the seat back (30). The seat (20) is attached to the seat back (30) by engaging it in the elongated hole (33) formed in the support plate (32) integral with the side seat back frame (31). Does not change position significantly. That is, the sheet (20)
Each connecting pin (23) located at the rear end is a connecting plate (24)
The rear end of the seat (20) pivots with respect to the lower end of the seat back (30) to which the connecting plate (24) is fixed, since the rear end of the seat (20) is engaged with the long hole (25) of the seat. If possible, they will not be far apart or interfere with the seat back (30). In other words, the seat (20) and the seat back (30) always interlock while maintaining a certain distance, and no matter how these states are, the seat (20) and the seat back (30) Not only does not have a large space, but also when the two move in contact with the user's body, there is no displacement with respect to the user's body. In other words, the seat (20) and the seat back (30) are linked while always fitting the user's body.

The reclining seat (10
In (0), the seat (20) has a regress (40) at the front end thereof, and the regress (40) is expanded or folded by a driving device (36) similar to the driving device (35). . That is, when the reclining seat (100) is used as a normal seat, the user places the regress (40) in front of the seat frame (10) as shown by a virtual line in FIG. When the user wants to rest his or her legs sufficiently, the driver (36) is operated to unfold as shown by the solid line in FIG. The reclining seat (100) has a footrest (14) on the back side, and a user of the reclining seat (100) located at the rear of the reclining seat (100) can use the footrest (14). It is used to place the foot. Therefore, each reclining seat (100)
Are arranged in the vehicle at an interval such that the footrest (14) and the regress (40) can be used, that is, as shown in FIG.

(Embodiment) Next, the reclining seat (100) according to the present invention will be described with reference to the embodiment shown in the drawings. In this case, the reclining seat (100) according to the second claim is the reclining seat according to the first claim. Since all the components of (100) are included, the following description will focus on the reclining seat (100) according to the second claim.

This reclining seat (100) is, as shown in FIG. 1, a seat frame (10) fixedly installed on the floor of a vehicle, and is arranged to be tiltable on the seat frame (10). The seat (20) has a seat back (30) rotatably connected to a rear end of the seat (20), and the reclining seat (100) is a front end side of the seat (20). Foldable leg rest (40)
The back side of the seat back (30) is provided with a footrest (14) for a user who uses another reclining seat (100) at the rear.

The seat frame (10) includes a pair of left and right support legs (11) fixedly installed on the floor surface, and is provided on the support legs (11) and arranged on both left and right sides of the seat (20). And a supporting frame (12). The pillars standing at the center of each support frame (12) have a suspension plate (22) and a support plate (32) to be described later.
A rotation shaft (13) is provided for rotatably supporting the. As shown by the imaginary line in FIG. 1, an armrest (not shown) or an armrest having operation buttons or levers for a driving device (35) to be described later is provided outside each support frame (12). 15) is provided, and the support frame (12) described above is arranged between each of the armrests (15) and the side end of the seat (20).

The seat (20) is a general one formed by placing a cushion material on a substantially flat support plate (21) and covering it with a surface covering material. (10) It is as if it were simply placed on top. However, in the seat (20) according to the present invention, the upper end of the suspension plate (22) integrally provided on both sides of the support plate (21) is provided on the support frame (12) on the seat frame (10) side. The seat (20) is swingably movable with respect to the seat frame (10). The rear end of the seat (20) and the supporting plate (21) constituting the seat (20) are arranged so that the rear of the seat (20) can sink into the seat frame (10). It is slightly cut out so as not to interfere with the frame (10) or the support frame (12).

The support plate (21) that constitutes the sheet (20)
A connecting pin (23) is provided integrally on both sides of the rear end of the seat. The connecting pin (23) is inserted into an elongated hole (33) provided in the support plate (32) of the seat back (30). By being engaged, the rear end of the seat (20) is rotatably connected to the lower end of the seat back (30). This is the seat (20) of the reclining seat (100) according to the second claim.
And how to connect the seat back (30). The connection between the rear end of the seat (20) and the lower end of the seat back (30) is not limited to the connection method according to the second aspect. The seat (20) and the seat back (30) may be rotatably connected to each other, or the rear end of the support plate (21) on the seat (20) may be directly turned to the seat back (30). They may be implemented in connection.

Further, a connecting plate (24) having an elongated hole (25) is fixed to the front end side of the support plate (21) constituting the seat (20). (25) is the connecting plate (2
4) It is located almost horizontally at the lower part. One end of a link arm (42) constituting the regress (40) is rotatably connected to the lower end of the connecting plate (24), and the upper end of the regress (40) is connected to the upper end of the connecting plate (24). ), One end of a seat back frame (41) is rotatably connected.

The rotation center of the seat back (30) to be tilted with respect to the seat frame (10) is a rotation shaft (13) provided on the support frame (12) on the seat frame (10) side. That is, in the seat back (30), a support plate (32) is integrally fixed to a lower end portion of a seat back frame (31) constituting the seat back, and a front end of the support plate (32) is rotated. It is rotatably connected to the support frame (12) by the driving shaft (13). And in the approximate center of each support plate (32),
In FIG. 1, an elongated hole (33) is formed in the substantially vertical direction, and the connecting pin (2) on the sheet (20) side described above is formed in the elongated hole (33).
By engaging 3), the rear end of the seat (20) and the lower end of the seat back (30) are connected.

In addition, one end of a substantially U-shaped link arm (34) is rotatably connected to the lower end of each seat back frame (31) constituting the seat back (30).
The other end of the link arm (34) extends forward and reaches an elongated hole (25) provided in the connecting plate (24) on the seat (20) side. The front end of this link arm (34)
The connection pin (24) engages with the long hole (25) of the connection plate (24) by the same connection pin, and the connection plate (24), in other words, the sheet ( 20) Push and pull. In this embodiment, one end of a driving device (35) is rotatably connected to the lower end of each seat back frame (31) coaxially with the link arm (34). Is connected to the seat frame (10) side. This drive (35)
The seat back frame (31) of the seat back (30) is positively tilted by the pressure of the fluid injected therein or the urging force of a spring or the like. The type applies.

In this embodiment, a driving device (36) similar to the driving device (35) is provided with the link arm (4) of the regress (40).
2) and the seat frame (10), and by operating this drive (36),
0) is developed as shown by a solid line in FIG. 1, or is folded as shown by a virtual line in FIG. Further, a footrest (14) is provided on a rear surface of the armrest (15) constituting the seat frame (10), and the footrest (14) is located at a rear portion of the reclining seat (100). 100) is used by the user, and the support angle can be adjusted according to the use situation.

(Effects of the Invention) As described above, in the invention according to the first claim, "a seat (20) which is arranged to be tiltable on a seat frame (10) and a support plate constituting the seat (20)" (2
1) A reclining seat (100) having a seat back (30) whose lower end is rotatably connected to a rear end thereof. The reclining seat (100) is provided on a seat frame (10) and on both sides of the seat (20). A suspension plate (22) integral with the support plate (21) constituting the seat (20) and a seat back frame (31) of the seat back (30) are integrated with the fixedly arranged support frame (12) And the support plate (32) provided in a rotatable manner,
An elongated hole (25) formed on the front end side of the support plate (21) on the seat (20) side and a lower end of the seat back frame (31) of the seat back (30) are connected by a link arm (34), The front end of the seat (20) is moved up and down via the link arm (34) in accordance with the tilt of the seat back (30). " As a matter of course, when the seat back is completely defeated, the seat is moved up in conjunction with this seat back, which enables a simple reclining seat that can take a nap in a comfortable posture. It can be provided by the configuration.

Further, the reclining seat according to the second claim (10
0), the seat (20) and the seat back (3
The support plate (21) that constitutes the seat (20) is connected with the support plate (21).
Connect the connecting pin (23) formed at the rear end of the seat back (3
The rear end of the seat (20) is seated in the seat back frame (31) because it is engaged with the elongated hole (33) formed in the support plate (32) integral with the seat back frame (31) on the side of the seat (20). (30)
Of course, the seat (20) and the seat back (30) can be kept away from the seat more than a certain amount, so that the reclining seat (100) can be used in any state. There is no space between the seat (20) and the seat back (30) where a part of the body of the person sinks, and the seat (20) and the seat back (30) supporting the body are misaligned. It does not. Therefore, in the reclining seat (100) adopting such a connection structure between the seat (20) and the seat back (30), in addition to the effects of the reclining seat (100) according to the first claim, Thus, a surface that always fits the body of the user can be formed by the seat back (30) of the seat (20), so that it is possible to take a sufficiently comfortable posture and take a sufficient nap.

[Brief description of the drawings]

FIG. 1 is a side view of the reclining seat when the seat back is used in a normal state, and FIG. 2 is a side view of the reclining seat when the seat back is tilted to the maximum to form a bed. EXPLANATION OF SYMBOLS 100: Reclining seat, 10: Seat frame, 12
... Support frame, 13 ... Rotating shaft, 20 ... Seat, 21 ... Support plate, 22 ...
Suspension plate, 23 ... connection pin, 24 ... connection plate, 25 ... oblong hole, 30 ... seat back, 31 ... seat back frame, 32 ... support plate,
33 ... Long hole, 34 ... Link arm, 35/36 ... Drive device.

Claims (2)

(57) [Scope of request for utility model registration] 1. A reclining seat comprising: a seat that is tiltably disposed on a seat frame; and a seatback whose lower end is rotatably connected to a rear end of a support plate that forms the seat. A support plate provided on the seat frame and fixedly disposed on both sides of the seat, a suspension plate integrated with the support plate constituting the seat, and a support provided integrally with the seat back frame of the seat back. A plate is connected rotatably, and a long hole formed at a front end side of the seat-side support plate and a lower end of the seat back frame of the seat back are connected by a link arm, and in response to the tilt of the seat back, A front end portion of the seat is vertically moved via the link arm. 2. A connection between the seat and the seat back, wherein a connecting pin formed at a rear end of a support plate constituting the seat is formed in an elongated hole formed in a support plate integral with the seat back frame on the seat back side. The swingable reclining seat according to claim 1, wherein the swingable reclining seat is engaged with the reclining seat.