JPH0539948Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a rotating seat in which the seat body is separated from the armrests on both sides, and is used by rotating the seat direction forward or backward. Each armrest has a reclining control unit that operates the backrest (1) arranged in the opposite direction, so that no matter which direction the seat body is facing, passengers can operate the reclining control unit configured on either armrest with their hand. This invention relates to a reclining mechanism for a rotating seat that allows the backrest to be easily reclined and tilted.

[Conventional technology]

Conventional rotating seats have a structure in which the armrests located on both the left and right sides of the seat are fixed to the left and right sides of the underframe on which the seat cushion and back rest are placed, and the direction of the seat can be changed to the front or back. In this case, the armrest part rotates at the same time as the seat cushion and backrest configured on the underframe, so the seat installation space on the floor of the vehicle is the outermost part of the seat, including the rotation locus of the armrest. The radius of rotation formed by the vehicle must be within a wide range that is not interfered with by other seats placed in front or behind it or by the interior walls of the vehicle.

Therefore, for a swivel seat with a large width, for example, for three people, if there is not enough space between it and the other swivel seats placed in front and behind it or the inner wall of the vehicle,
It is impossible to rotate the rotating seat without interfering with these components, and depending on the type of vehicle, sufficient installation space cannot be secured, so it cannot be constructed as a rotating seat. Therefore,
A rotary seat has been proposed in which an armrest located on one or both sides of the seat is provided on the footrest side or on the inner wall side of the vehicle, and the above-mentioned underframe on which a seat cushion is placed is rotatably mounted inside the armrest.

[The problem that the idea aims to solve]

However, in a rotating seat where the seat body is separated from the armrests on both the left and right sides, for example, in a rotating seat for 3 people, the middle armrest of 2 installed between the seat cushions is
Although it is possible to install a reclining operation section for the backrest for two people, the reclining operation section for one person on either the left end or the right end cannot be used because the armrests on both the left and right sides are separated from the main body of the seat. Depending on the direction of the armrest, the combined armrests will be in the opposite direction, making it impossible to perform a reclining operation. For this reason, conventionally, a reclining operation section has been disposed below the seat cushion of the rotating seat body, but this has had the problem of very poor operability.

The present invention was devised in view of the above problem, and is a rotating seat in which the seat body is separated from the armrests on both the left and right sides, and the armrests face toward the front of the seat even when the seat body is rotated in either direction. The object of the present invention is to provide a reclining mechanism for a rotating seat, in which a reclining operation part is located at the front end of the seat, and the backrest can be reclined and tilted by hand operation.

[Means to solve the problem]

In order to achieve the above object, the reclining mechanism for a rotating seat according to the present invention is a seat in which a leg base is fixed on the vehicle floor surface and an underframe is rotatably attached to the leg base via a rotating device. In a rotating seat, armrests located on both sides of the seat are arranged and fixed on a leg stand, and the above-mentioned underframe on which a seat cushion is placed is rotatably attached inside the armrest, and each of the left and right armrests arranged and fixed on the leg stand is provided with: The means of arranging the reclining operation parts in opposite directions, inserting the connection cables connected to each reclining operation part into the approximate center of rotation of the rotation device, and connecting the first backrest to a seat lock for tilting operation. This study included the following.

[Effect]

According to the above configuration, the seat main body can be rotated separately from the armrests on both the left and right sides, and the passenger on the left end or the right end can easily sit on his or her back regardless of whether the seat main body is facing forward or backward. It is possible to perform reclining operations.

For example, if the rotating seat is facing in the direction of travel of the vehicle, the backrest can be reclined by operating the reclining control unit located on the armrest located to the right of the passenger seated on the right end of the rotating seat. Even if you rotate the swivel seat and reverse the direction of the seat,
The backrest can be easily reclined by manually operating a reclining operation part configured on another armrest on the opposite side, which is arranged in the opposite direction.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a reclining mechanism for a rotating seat according to the present invention will be described with reference to the drawings.

FIGS. 1 to 3 show a rotating seat, and 1 is a footrest fixed on the floor surface A of the vehicle;
An underframe 3 is rotatably mounted on the leg stand 1 via a rotation device 2, and a seat cushion 4 is placed and fixed on the upper surface of the underframe 3, and a backrest 5 is installed on the rear side of the underframe 3 via a reclining device to be described later. A seat is constructed by attaching the seat so that it can be tilted freely, and a middle armrest 6 is additionally attached. Therefore, the above-mentioned underframe 3
The seat main body constituted by the seat cushion 4, backrest 5, middle armrest 6, etc. constructed on the underframe 3 becomes a rotating part of the rotating seat, and is supported on the rotating device 2.

This rotating device 2 includes, for example, a rotating plate fixed to the lower part of the underframe 3, and a leg stand 1 on the lower surface of the rotating plate.
The seat main body constructed on the underframe 3 is rotatably supported by the rotating device 2 portion. In addition, a stopper device (not shown) is attached to fix the underframe 3 on the leg stand 1 in the forward or backward use position of the seat. This stopper device inserts its tip into a locking hole that is commonly opened in the leg stand 1 and the underframe 3, moves the stopper pin upwardly biased by a spring, and moves the stopper pin downward. and a pedal for releasing the rotation from the locking hole on the underframe 3 side.

Armrests 7, 7 disposed on both left and right sides of the seat are provided on sleeves 8, 8 fixedly protruding from the sides of the footrest 1.
That is, it is provided on the leg base 1 and the sleeve 8 fixed on the leg base 1, and the armrests 7, 7 on both sides serve as fixed parts, and are fixed on the floor surface A of the vehicle. Note that the armrest 7 can also be fixed to the inner wall B side of the vehicle.

FIG. 4 shows a plan view of the rotating seat. The rotating seat rotates between the left and right armrests 7, 7 fixed to the leg base 1 side, and the rotating seat rotates between the left and right armrests 7, 7 fixed to the leg base 1 side. The arrangement interval in the front-rear direction with respect to the rotating seat can be determined by the separation distance X' corresponding to the rotation radius X formed by the outermost rotational periphery of the seat main body as it rotates. That is, in a rotating seat having the same width, the right and left armrests disposed on both sides of the seat body are integrally constructed with the seat, and the rotation radius Y formed by the rotating seat is rotated together with the seat body. The rotation radius X of the seat main body of the rotating seat according to the invention is shortened by Y-X, and within that range, interference with other rotating seats arranged in the front and rear and the inner wall of the vehicle can be eliminated.

FIG. 5 shows a reclining mechanism, and reference numeral 9 denotes a backrest frame 1 that supports the backrest 5.
This is a seat lock that is stretched between the lower end 10a of the seat belt 10 and the front lower part of the underframe 3, and reclines and tilts the backrest 5 steplessly around the rotating shaft 11 by its expansion and contraction operation. This seat lock 9 has a structure in which an elastic body (not shown) such as a spring is housed in a cylinder 9a to push out an operating rod 9b to one side, and a fluid such as gas or oil sealed in the cylinder 9a. It has a structure in which the actuating rod 9b can be fixed at a desired position by stopping the movement of pressure. The flow of the fluid pressure can be controlled by opening and closing a release valve 9c provided on the operating rod 9b side. In the present invention, a supporting shaft of a mounting portion 9e provided at one fixed end 9d of the seat lock 9 constituting the release valve 9c is attached to a bracket 12 erected inside the underframe 3. In addition, the mounting part 9e
A screw rod 13, which is configured to be swingable, is protrudingly engaged with the release valve 9c, and this screw rod 1
By operating the release valve 9c, the release valve 9c can be opened and closed, and the backrest 5 can be tilted to a desired tilt angle and the tilted posture can be fixed.

FIG. 6 shows the arrangement of the connection cables of the reclining mechanism of the rotary seat according to the present invention.
4 and 14 are arranged in opposite directions. In this embodiment, each armrest 7, A reclining operation section 14 is disposed at 7. Connection cables 15a, 15b are connected to the reclining operation parts 14, 14.
Connect the connecting cables 15a and 15b, respectively.
is connected to a lever rod 13 of a seat lock 9 which is inserted into a hole formed approximately in the center of the rotating device 2 and operates the backrest 5 of the first one.

FIG. 7 shows a terminal section for operating one seat lock with two connecting cables. In this embodiment, the lever rod 13 can be operated by pulling one connecting cable 15c with two connecting cables 15a and 15b through the terminal frame 16. That is, the connection cable 15a connected to the reclining operation part 14 of the right armrest 7 and the reclining operation part 1 on the left side.
Connect the connecting cable 15b connected to 4 within the terminal frame 16, and connect the connecting cable 15b connected to
Connected to c, the screw rod 13 of the seat lock 9 of 1
It is connected to. Thus, the passenger can operate the reclining operation parts 14, 14 disposed in opposite directions on the left and right armrests 7, 7, and can recline the backrest 5.

Also, the other end of the connection cable 15d (see FIG. 5), which is connected to the rotation release pedal 17 formed on the footrest 1 in order to rotate the rotating seat, is also connected to the lever 13 of the seat lock 9. There is.
When the pedal 17 is depressed, the lever rod 13 is pulled in a predetermined direction via the connecting cable 15d, and the backrest 5 is simultaneously rotated.
can also be automatically restored.

8a, b, and c show the positional relationship between the rotating seat and the reclining operation part. Seats B and C have the reclining operation parts 14, 14 of the backrest 5 on the middle armrests 6, 6, respectively. However, in the seat A, the armrests 7 on both the left and right sides are separated from the seat cushion 4.

First, as shown in FIG. 8a, when the rotating seat faces the direction of travel, the passenger in seat A operates the reclining operation part 14 disposed on the armrest 7a located on the right hand side to lower the back. The shear 5 can be reclined.

Next, as shown in FIG. 8b, when the rotating seat is rotated, the seat body and the armrests 7a, 7b are separated.
As shown in FIG. 8c, when the seat body faces in the opposite direction to the direction of vehicle travel, the passenger in seat A can use the reclining operation part provided on another armrest 7b located on the right hand side, as described above. 14 can be operated to recline and tilt the backrest 5.

[Effect of idea]

Since the reclining mechanism of the rotating seat according to the present invention is constructed as described above, even if the large seat main body rotates separately from the armrests on both the left and right sides, the reclining mechanism of the rotating seat according to the present invention can be easily attached to the armrests on both the left and right sides of the fixed side. Since the reclining operation part is always located at the position used by the passenger, the passenger can recline and tilt the back regardless of the rotation of the seat body, which improves the usability of the reclining operation. It has excellent practical effects after implementation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a rotating seat showing an embodiment of the reclining mechanism of the rotating seat according to the present invention, Fig. 2 is a rear view, Fig. 3 is a side view, Fig. 4 is a plan view, and Fig. 5 is a side view. The figure is an enlarged side view of the main parts of the reclining mechanism and armrest, Fig. 6 is a layout diagram of the reclining operation part and connecting cable, and Fig. 7 is the main part of the terminal part for operating seat lock 1 with two connecting cables. The enlarged plan view, FIG. 8, shows the positional relationship between the rotating seat and the reclining operation part, where a is a schematic explanatory diagram when the rotating seat is facing in the direction of vehicle travel, and b is a diagram showing the rotating seat being rotated. c is a schematic explanatory diagram showing a state in which the rotating seat is oriented in the opposite direction. 1... Leg stand, 2... Rotating device, 3... Underframe, 4
...sitting cushion, 5...backrest, 7...armrest, 9...
... Seat lock, 14... Reclining operation unit, 15... Connection cable, A... Vehicle floor, B
...Inner wall of the vehicle.

Claims (1)

[Scope of Claim for Utility Model Registration] A footrest is fixed on the floor of the vehicle, and an underframe is rotatably attached to the footrest via a rotation device. Armrests are placed on the footrest to be located on both sides of the seat. fixed,
In a rotating seat in which the above-mentioned frame on which a sitting cushion is placed is rotatably attached inside the armrest, reclining operation parts are arranged in the front and back opposite directions on each of the left and right armrests arranged and fixed to the above-mentioned footrest, and each reclining operation is performed. A reclining mechanism for a rotating seat, characterized in that connection cables connected to the parts are inserted through substantially the center of rotation of the rotating device, and are connected to a seat lock for tilting the backrest.