JPH06262971A - Eccentric rotating mechanism of rotary chair - Google Patents

Abstract

PURPOSE:To complete rotation of a rotary chair with one run of operation without causing it to interfere with the wall surface, etc., of a car by structuring so that the chair slides automatically to the passage side in linkage with its rotating motion. CONSTITUTION:On the oversurface of a table 1, a mounting plate 15 for a rotation device 2 is mounted in such a way as slidable in the direction left and right. A guide link 19 is secured to the axis of a rotary disc 16 provided in this rotation device 2, and one end 20a of a slide link 20 is mounted slingably at the periphery of the guide link 19 while the other end 20b is swingably installed at the side of the table 1, and interlocking with rotation of the rotary disc 16, the chair is moved by pressure to the passage B side together with the rotary disc 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary seat for a vehicle which is used by rotating the seats mounted on various vehicles such as railroad cars, automobiles, aircrafts or ships (hereinafter referred to as "vehicles") forward and backward. In particular, the present invention relates to an eccentric rotation mechanism for a rotary stool capable of rotating the stool while sliding the stool to the side of a passage during rotation so as to rotate the stool without interfering with a wall surface of a vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, there has been used a rotary stool capable of turning a seat with respect to a traveling direction of a vehicle or the like and facing a seat in a rear row, for example. In such a rotary stool, an underframe for mounting the stool main body is configured on a pedestal through a rotating device, and its rotation radius is within a range where it does not interfere with other rotary stools or wall surfaces arranged in front and rear. It is designed to ensure maximum seat spacing in.

[0003]

However, the above-mentioned conventional rotary stool is designed to secure the passage width in a vehicle and to prevent interference with the wall surface of the vehicle body, that is, the window side when the rotary stool is rotated. , It is also necessary to secure a gap with the wall surface of the vehicle body. Therefore, the lateral width of the stool body is originally restricted by the design of the shape of the armrest, and the seating area of the stool is reduced. Moreover, when the table built in the sleeve body is unfolded, there is a drawback that the table easily interferes with the wall surface of the vehicle body.

Further, in order to prevent the rotary stool from interfering with the wall surface of the vehicle body, there has been proposed a means for separating the stool from the wall surface of the vehicle body and sliding it toward the aisle side when the stool is rotated. In this sliding method, first, the pedal is depressed to release the rotation stop, and at the same time, the rotating device is slid to the aisle side, and then, at the position where the rotating device is moved to the aisle side, the seat body is rotated to turn the seat, and It is a method of returning the stool body to the original position together with the rotating device.
Since each operation consists of stages, and each of these operations cannot be performed continuously, there is a problem that the rotation work of the stool becomes very complicated.

The present invention was devised in view of the above problems, and even in the case of a rotating stool having a wide seating space, when the stool body is rotated, the stool body is moved in association with the rotation of the stool body. An object of the present invention is to provide an eccentric rotation mechanism with a rotary seat that can be automatically slid to the passage side and complete rotation in one operation without interfering with the vehicle wall surface or the like.

[0006]

In order to achieve the above object, an eccentric rotating mechanism for a rotary seat according to the present invention rotates an underframe via a rotating device composed of a rotating plate and a mounting plate on a leg stand. A rotation stop device for movably mounting and fixing the underframe at an appropriate position on the leg base in a use position in a predetermined direction is formed, and the turning motion of the underframe is enabled by releasing the rotation stop device. In a rotating seat, the mounting plate is slidably attached to the upper surface of the pedestal in the left-right direction, the guide link is fixed to the central axis of the rotating plate, and one end of the slide link is swung around the guide link. Freely attached, and the other end of the slide link is swingably attached to the side of the pedestal so that it can be interlocked with the rotation of the rotary plate and press the stool together with the rotary plate to the passage side. What is done is the gist. It is desirable that a tension member be interposed between the mounting plate and the footrest so that the rotating device is tensioned toward the passage.

[0007]

According to the above construction, when the stool is to be rotated, the pedal of the rotation stopping device is depressed to release the rotation stop, and when the stool is rotated, the guide link fixed to the central axis of the rotary plate of the stool is rotated. Rotate at the same time. A slide link is swingably attached to the peripheral portion of the guide link, and when the guide link rotates, the slide link is pressed, but the other end of the slide link is on the pedestal side. Since it is attached, the reaction causes the guide link itself to be pressed. Further, since this guide link is fixed to the central axis of the rotary plate, the rotary plate moves together with the mounting plate in the horizontal direction on the upper surface of the pedestal by a distance corresponding to a radius of the guide link. Thus, at the same time when the stool is rotated, the rotating device and the stool are gradually moved to the passage side, so that the armrest and the table constituting the stool do not interfere with the vehicle wall surface or the like.

Even at the beginning of the rotation of the stool, the tension member interposed between the mounting plate and the footrest always pulls the rotating device to the passage side. Can be easily rotated and moved to the passage side. On the other hand, after the stool has rotated about 90 degrees, on the contrary, the inertial force at the time of rotation exceeds the tensile force of the tension member, so that the rotation of the stool and the operation of returning it to the original position can be quickly completed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an eccentric rotating mechanism for a rotary seat according to the present invention will be described below with reference to the drawings. 1 and 2 are
1 is a view showing an embodiment of a rotary seat that constitutes an eccentric rotation mechanism according to the present invention. In the drawings, reference numeral 1 is a leg stand fixed on the floor surface of a vehicle or the like, and an underframe 3 is rotatably mounted on the leg stand 1 via a rotation device 2, and a seat hood 4 is mounted on the upper surface thereof.
4 is mounted in parallel and fixed, and sleeve bodies 5 and 5 are attached to both sides thereof, an armrest 6 is placed on each sleeve body 5, and a backrest 7 is mounted on the rear portion thereof via a reclining device (not shown). , 7 are tiltably mounted to form a stool body 8. The stool body 8 thus configured is used by rotating it in the front-rear direction together with the underframe 3.
The stool body 8 is fixed at a use position in a predetermined direction by an anti-rotation device 9 mounted between the pedestal 1 and the underframe 3, and when the stool body 8 is rotated, the pedal 10 is depressed to stop the rotation. The pin 11 of the device 9 is pulled out from the engagement hole 12 formed on the lower surface of the underframe 3 to release the rotation stop, and the seat body 8 is rotated together with the underframe 3 so that the seat can be turned in the front-back direction. It is configured in. In addition, 13 is an armrest 6
Is a cocktail tray built in, and 14 is a deployable table for the rear seats.

3 to 6 show an eccentric rotating mechanism for a rotary seat according to the present invention. In the rotating device 2 according to the present invention, a rotating plate 16 is rotatably mounted on the upper surface of a mounting plate 15. Further, on the foot stand 1, two rails 1 having a substantially U-shaped cross section from the window side A toward the passage side B are provided.
7 and 17 are arranged side by side, and a plurality of seat adjusters 18, 18 ... Sliding on each rail 17, 17 are attached to the mounting plate 1.
5 is arranged and fixed on the lower surface, and the rotating device 2 is configured to be slidable in the left-right direction on the leg base 1. In addition, the mounting plate 14
A guide link 19 and a slide link 20 for moving the mounting plate 16 between the normal use position and the passage-side eccentric position on the leg base 1 are formed between the base 1 and the base 1. The guide link 19 is made of a plate material having a turning hole at the center and a part of which has a long radius, and is fixed to the central shaft 21 of the rotating plate 16 so that the turning centers are common to each other. It was done. Further, one end 20a of a rod-shaped slide link 20 is swingably attached to a portion of the guide link 19 having a long radius, and the other end 2 of the slide link 20 is attached.
Reference numeral 0b is swingably attached to a side portion of the leg stand 1. When the guide link 19 configured as described above rotates together with the rotary plate 16, the slide link 20 is pressed,
Since the other end 20b of the slide link 20 is attached to the side portion of the pedestal 1, its reaction causes the guide link 19 to move.
The rotating device 2 moves in the left-right direction of the footrest 1 on the rails 17, 17 on the upper surface of the footrest 1 together with the guide link 19 itself. In addition, it is desirable to fit a retaining member that protrudes from the side of the pedestal 1 into the groove of the rails 17, 17. Further, instead of the rail 17 and the seat adjuster 18, it is possible to carry out by means of arranging and fixing a plurality of rollers sliding on the rails arranged in parallel on the pedestal 1 on the lower surface of the mounting plate 15. it can.

Reference numeral 22 is a tension member such as a coil spring interposed between the mounting plate 15 and the footrest 1, and pulls the rotating device 2 toward the passage B side. This tension material 22
Requires a large rotational force to rotate and move the stool main body 8 in the initial stage of rotation of the stool.
When it is pulled to the side, the stool body 8 is moved while being easily rotated to the passage B side in conjunction with the rotation of the stool body 8. On the other hand, after the stool body 8 has rotated about 90 degrees, conversely, the inertial force at the time of rotation exceeds the tension force of the tension material 22, so the rotation of the stool body 8 and the operation of returning it to its original position must be completed quickly. You can

FIGS. 7 (a) to 7 (j) show the rotation state of the stool body corresponding to the rotation state of the eccentric rotation mechanism according to the present invention. When rotating the stool body 8 in the front-rear direction from the eccentric rotation mechanism before rotation and the rotation stool as shown in (a) and (b), the rotation stopping device is stepped on by depressing the pedal 10 as in the conventional rotary stool. When 9 is released and the stool body 8 is rotated in a desired direction, as shown in (c) and (d), the guide link 19 and the slide link 20 act to rotate the stool body 8 toward the passage B side at the same time. Move (eccentric distance w). When rotated about 90 degrees, the seat body 8 moves the maximum eccentric distance W to the side of the passage B (see (e) and (f)). When the seat body 8 is further rotated, the guide link 1
The stool body 8 is moved to the window A side by the action of 9 and the slide link 20 (see (g) and (h)), and finally the direction of the stool is reversed, and the turning motion of the rotary stool is completed. (See (i) and (j)). In this way, when the stool body 8 is rotated, the stool body 8 rotates at a position away from the window A side, so that it does not interfere with the vehicle body wall.

In the above description, the rotary stool in which the stool body is rotated manually has been described, but the stool body may be automatically rotated by the drive motor. Further, in the above description, the rotary stool for two people is described, but the rotary stool for which the front-rear distance must be shortened due to installation in the vehicle is not limited to two-seater, and three people can be used. It goes without saying that the structure of the rotary stool according to the present invention can be implemented even for the rotary stool for hanging or for one person.

[0014]

Since the eccentric rotation mechanism of the rotary stool according to the present invention is configured as described above, when the stool body is rotated, the stool body moves to the passage side at the same time as the rotation, so that the sleeve body and Without being restricted by the shape of the armrest, even a rotating stool with a wide seating area can be rotated without interfering with other stools or the vehicle body wall.

Further, since the rotation of the stool body and the movement to the passage side are interlocked with each other by the guide link and the slide link formed in the rotating device, the turning of the stool can be completed easily and quickly by one rotation work. It is possible to do so, and the effect after carrying out the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a rotary seat that constitutes an eccentric rotation mechanism according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view showing a state before movement of the eccentric rotation mechanism of the rotary seat according to the present invention.

FIG. 4 is a plan view showing a state in which the eccentric rotation mechanism of the rotary seat is moving.

FIG. 5 is a front view showing the eccentric rotation mechanism of the rotary seat according to the present invention.

FIG. 6 is a side view of the same.

FIG. 7 is an explanatory view showing a rotation state of the seat body corresponding to the positional relationship between the guide link and the slide link,
(A) and (b) are in a state before rotation, (c) and (d) are states in which rotation is started, (e) and (f) are states in which the rotating device is most eccentric, and (g) and (h) are The state of returning to the original position,
(I) and (j) show the state of the end of rotation.

[Explanation of symbols]

 1 leg stand 2 rotation device 3 frame 8 seat body 9 rotation stop device 15 mounting plate 16 rotation plate 17 rail 18 seat adjuster 19 guide link 20 slide link 22 tension material

Claims (2)

[Claims] 1. An underframe is rotatably mounted on a pedestal via a rotating device composed of a rotary plate and a mounting plate, and the underframe is placed at an appropriate position on the pedestal at a use position in a predetermined direction. In a rotation stool that constitutes a fixed rotation stop device and enables the turning motion of the underframe by releasing the rotation stop device, the mounting plate is slidably attached to the upper surface of the pedestal in the left and right directions, and While fixing the guide link to the central axis of the plate,
One end of the slide link is swingably attached to the peripheral portion of the guide link, and the other end of the slide link is swingably attached to the side portion of the leg stand, and is interlocked with the rotation of the rotary plate.
An eccentric rotation mechanism for a rotary stool, characterized in that the stool can be pressed and moved to the passage side together with the rotary plate. 2. The eccentric rotation mechanism for a rotary seat according to claim 1, wherein a tension member is interposed between the mounting plate and the footrest so as to tension the rotating device toward the passage.