JPH11148241A - Elevating/lowering floor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably maintain an elevating/lowering base by driving an expansion drive device to regulate the crossing angle of a link mechanism, and abutting a horizontal oscillation preventive member on the elevating/lowering base when the elevating/ lowering base is stopped to prevent the horizontal oscillation of the elevating/lowering base. SOLUTION: An elevating/lowering frame 4 equipped with a plurality of seats 3 is arranged above an installation base 2, and a pair of forward and rear link mechanisms 5 to elevate/lower the elevating/lowering frame 4 relative to a floor surface 1 is provided between the installation base 2 and the elevating/lowering frame 4. Each link mechanism 5 is arranged in pairs in an X-shape and constituted by link members 6, 7 which are turnably connected to each other by a connection axial member 8, and upper and lower end part of the link members 6, 7 are brought close to/ away from each other in the horizontal direction by a cylinder device for elevation/ lowering. The elevating/lowering frame 4 is set at a low position, and when the link members 6, 7 are brought down so as to be brought close to the floor surface 1, the overturning moment is exerted on a turning base 26, and when the turning base 26 is horizontally oscillated, a bar member is abutted on a back side of a reinforcement of a fitting body to prevent the horizontal oscillation of the turning base 26 and prevent the locking of the base 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating type seat apparatus used for a multipurpose hall or a theater, for example.

[0002]

2. Description of the Related Art Conventionally, there is a lift-type seat apparatus which is adapted to correspond to an entertainment by raising and lowering a seat in a theater or the like as shown in FIGS. This lifting type seat device,
This is an example in which an elevator 56 on which a plurality of seats 55 are arranged and mounted is supported on a floor surface 57 via a link mechanism (scissors) 58 so as to be able to move up and down. The link mechanism 58 includes a first link 60 having a lower end rotatably supported by a floor 57 and a roller 59 at the upper end abutting against the back surface of the elevating platform 56 and a lower end having a floor. The second link 61 is configured to be movable along the surface 57 and the upper end is rotatably supported on the back surface of the elevating table 56. The lower end of the second link 61 is horizontally moved along the floor 57. The first link 60 and the second link 61 are rotatably connected in the middle of the first link 60 and the second link 61 by a pin member 63.

According to this configuration, the moving cylinder device 6
By driving the second link 61, the lower end of the second link 61 moves in the horizontal direction along the floor surface 57 to change the inclination angle of the second link 61, and accordingly, the second link 61 and the pin member 63 The inclination angle of the first link 60 connected via the first link 60 changes, and the first link 60 and the second link 61 can raise and lower the supporting table 56 while supporting the same. Is adjusted to correspond to events and the like.

[0004]

In the above-mentioned conventional seat apparatus, as shown in FIG. 9, when the elevator 56 is set at a low position, that is, when the links 60 and 61 are lowered so as to approach the floor surface 57. Rocking is particularly likely to occur on
Even when a small horizontal force is applied, a roll occurs, and the stability of the seat 55 is poor.

Accordingly, an object of the present invention is to provide an elevating type seat apparatus which can solve the above-mentioned problems.

[0006]

According to the present invention, there is provided a link mechanism for raising and lowering a platform with respect to the floor, between the floor and a platform with a seat attached thereto. In this link mechanism, the middle of a pair of link members is rotatably connected by a connecting shaft member, and the ends of the link members are moved closer to or away from each other to adjust the inclination angle of each link member with respect to the floor surface in a horizontal direction. A telescopic drive device is provided. The anti-rolling member is provided to contact the lifting platform and prevent its rolling when the telescopic driving device is driven to lower the lifting platform.

[0007] A guide member is provided on one of the floor side and the elevator side to guide the elevation of the elevator, and an elevator body guided by the guide member is provided on the other side on the floor side or the elevator side. A roller body is provided between the guide member and the elevating body to prevent the elevating table from swaying to another side of the elevating floor device provided adjacently during the elevating operation of the elevating table. Have been.

According to the above configuration, when the telescopic drive device is driven, the crossing angle between the link members provided as a pair changes,
When the elevator with the seat mounted thereon moves up and down with respect to the floor surface, and when the elevator is lowered, the roll prevention member abuts on the elevator to prevent the roll.

In addition, the lifting member is guided by a guide member via a roller member for preventing swinging, so that the lifting table can be moved up and down by another lifting floor device provided adjacent to the lifting table during the lifting operation of the lifting table. Prevent swaying to the side.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. As shown in FIG. 1 and FIG. 2, the lifting seat device according to the embodiment of the present invention has an installation table 2 attached to a floor surface 1, and a plurality of seats 3 are mounted on the installation table 2. An elevating gantry 4 is disposed, and a link mechanism 5 for raising and lowering the elevating gantry 4 with respect to the floor surface 1 is provided between the installation gantry 2 and the elevating gantry 4. The link mechanism 5 is arranged as a pair in front and rear between the lift frame 4 and each link mechanism 5 is composed of link members 6 and 7 arranged in a pair in an X-shape. It is rotatably connected by a member 8.

A vertically expandable and retractable cylinder device for adjusting the inclination angle of the link members 6, 7 with respect to the floor surface 1 by moving the upper and lower ends of the link members 6, 7 toward and away from each other in the horizontal direction. 10 (an example of an expansion / contraction drive device) is installed on the installation table 2, and the lifting / lowering cylinder device 10 is composed of a drive section 11 fixed to the installation table 2 and an expansion / contraction section 12. The base end is pin member 1
3a, the tip of the movable rod 12a of the telescopic part 12 is attached to the lower end of one link member 7 by a pin member 13
It is rotatably connected via b.

The upper end of the one link member 7 is rotatably connected to the back surface of the lift base 4 via a pin member 13c. The lower end of the other link member 6 is the pin member 1.
3d, it is rotatably connected to the installation table 2, and the upper end of the other link member 7 is in contact with the back surface of each pressed frame 14 provided as a pair with the lifting frame 4 for elevating and lowering. Roller body 1
5 are attached.

The lifting frame 4 is provided with the two pressed frame members 1.
4, there is provided an inverted V-shaped mounting body 16 arranged in pairs in the longitudinal direction of the pressed frame body 14, and a plurality of horizontal reinforcing members 17a, 17b are mounted on each mounting body 16, The facing surfaces of the mounting bodies 16 are connected to each other by connecting members 18.
Is fixedly connected.

As shown in FIGS. 5 to 7, support frames 20 are arranged so as to face both sides of the mounting table 2, and guides for guiding the lifting operation of the lifting frame 4 to each of the support frames 20. A guide device 21A is provided.
Is a pair of guide rods (guide members) 21 extending upward from the support gantry 20, an elevating body 22 that moves up and down between the guide rods 21, and a support member 23 that rotates on the opposing surface of each guide rod 21. It is composed of a pair of upper and lower guide rollers 24 which are freely supported and roll in contact with the side surface of the elevating body 22, and the upper part of the elevating body 22 is fixed to the reinforcing member 17 of the mounting body 16. .

As shown in FIG. 1 to FIG.
There is provided a seat device 25 rotatably supported around a rotating shaft 31 that is supported on the upper part of the seat device.
It comprises a turntable 26 arranged between the mounting bodies 16 and a plurality of the seats 3 arranged side by side on the turntable 26. The turntable 26 has a seat surface 27 on which the seat 3 is installed. ,
A multi-purpose surface 28 is formed in a direction perpendicular to the seat surface 27. In addition, the seat surface 27 and the multipurpose surface 2
A diagonal member 30 is attached between the ends of 8.

A turning device 32 for turning the oblique member 30 around the turning shaft 31 is provided. The turning device 32 is provided with a turning motor 33 fixed on the upper part of the mounting body 16. And a transmission gear mechanism (not shown) for connecting the output shaft 34 of the rotation motor 33 and the rotation shaft 31.

A plurality of horizontal members 35 for positioning the elevating gantry 4 are provided on the halfway facing surface side of the elevating body 22, as shown in FIG. 5 to FIG. Is provided with a portal frame 36.

At the mounting portion 37 of the portal frame 36,
A bar device 38 for preventing the vertical movement of the elevating gantry 4 is provided. The bar device 38 is supported by the mounting portion 37 via a bracket 40 so as to be rotatable around a support shaft 42. A motor 44 and a bar member 46 movably provided along a ball screw 45 connected to an output shaft 44a of the drive motor 44 (along the longitudinal direction of the elevating gantry 4). A guide frame member 47 for guiding the bar member 46 to move below is fixed to the mounting portion 37, and a guide roller 48 for guiding the bar member 46 on its upper surface is rotatable on the mounting portion 37 via the bracket 41. It is provided in.

Elevating seat devices having the same configuration as above are provided in a predetermined number in a row according to the size of the venue where the devices are installed. In the above configuration, FIGS.
Shows the case where the seat surface 27 is used, and when the multipurpose surface 28 is used in accordance with an event, the rotation motor 33 is driven from the above state. Then, the drive is transmitted to the rotation shaft 31 via the transmission gear mechanism, the diagonal member 30 and the rotation base 26 rotate around the rotation shaft 31, and switch from the seat surface 27 to the multipurpose surface 28. When rotating the turntable 26 as described above, the lift platform 4 is moved up and down to an appropriate height so that the seats 3 of adjacent lift-type seat devices do not interfere with each other. Of course.

By the way, in order to raise and lower the lifting base 4,
This is performed by driving the lifting / lowering cylinder device 10.
For example, the state of FIGS. 3 and 4 is a case where the elevating gantry 4 is raised to the highest position, and when the elevating gantry 4 is lowered from this state, the driving unit 11 is driven to drive the telescopic unit. The 12 moving rods 12a are pushed out. Then, one of the link members 6 and the other link member 7 connected to the link member 6 fall down (the inclination angle with respect to the floor 1 becomes small), and the elevating body 22 descends between the guide rods 21, Further, the elevating body 22 is guided by the guide rollers 24, and the elevating gantry 4 descends smoothly without rolling and without interfering with the adjacent elevating type seat apparatus.

On the other hand, when lowering the lift base 4,
The bar drive member 44 is driven to rotate the ball screw 45 so that the bar member 46 is retracted so that the bar member 46 does not hit the horizontal member 35. When the elevating platform 4 is lowered to a predetermined position, the bar drive member 44 is driven to rotate the ball screw 45 so that the bar member 46 is protruded, and the bar member 46 is attached to the mounting body 1.
6 is located immediately below the reinforcing member 17. In this way, the turning moment is applied eccentrically to the turntable 26, and when the turntable 26 tries to sway around the turning shaft 31, the bar member 46 is attached to the reinforcing member 17 of the mounting body 16.
Of the rotary table 26 is prevented from hitting the rear surface of the rotary table.

Locking is particularly likely to occur when the elevating gantry 4 is set at a low position, that is, when the link members 6 and 7 are lowered so as to approach the floor 1, but according to the embodiment of the present invention. When a turning moment is applied to the turntable 26 and the turntable 26 tries to roll, the bar member 46
Abuts against the back surface of the reinforcing member 17 of the mounting body 16 to prevent the swinging motion of the turntable 26. Therefore, even when the elevating platform 4 is set at a low position, locking of the turntable 26 can be prevented.

When the elevating gantry 4 is to be set at a relatively high position, the bar drive member 44 is driven to rotate the ball screw 45 in the same manner as described above, so that the bar member 46 is retracted. Then, the bar member 46 becomes the horizontal member 3
5, and when raising and lowering the cradle 4 is performed, the lifting and lowering cradle 4 is moved by driving the lifting and lowering cradle 4. When the lifting and lowering cradle 4 reaches a predetermined height position, the lifting and lowering cradle 4 is moved up and down. The driving is stopped, the driving motor 44 is driven to rotate the ball screw 45, and the bar member 46 is projected. This prevents the turning table 26 from swaying when the bar member 46 hits the back surface of the reinforcing member 17 of the attachment body 16, so that the locking of the turning table 26 can be prevented.

In the above-described embodiment, the guide rod (guide member) 21 is provided on the floor surface 1 side, and the elevating body 22 guided by the guide rod 21 is provided on the lift base 4 side. However, the present invention is not limited to this. Instead, the guide rod 21 may be provided on the lift base 4 side, the lift 22 may be provided on the floor 1 side, and the guide roller 24 that rolls in contact with the side surface of the lift 22 may be provided. Also in this case, the elevating body 22 is guided by the guide rollers 24, so that the elevating gantry 4 can be moved up and down smoothly without interfering with the adjacent elevating type seat device without rolling.

[0025]

As is apparent from the above description, the present invention adjusts the crossing angle of the link mechanism by driving the telescopic drive device, and when the elevator is stopped, it comes into contact with the elevator and rolls. Since the anti-rolling member for preventing the vertical movement is provided, the vertical movement of the lifting platform can be prevented, and the lifting platform can be stabilized.

[Brief description of the drawings]

FIG. 1 is a side view of an elevating floor apparatus according to an embodiment of the present invention in a state where an elevating platform is lowered.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of a state in which the elevating gantry is raised.

FIG. 4 is a front view of the same.

FIG. 5 is a partially broken enlarged front view of the guide device and the bar device.

FIG. 6 is a partially broken enlarged plan view of the guide device and the bar device.

FIG. 7 is a perspective view of the guide device and the bar device.

FIG. 8 is a side view showing a state after the turntable is turned.

FIG. 9 is a side view of a conventional lifting floor apparatus in which a lifting platform is raised.

FIG. 10 is a side view of a state where the lifting gantry is lowered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor surface 2 Installation stand 3 Seat 4 Elevating stand 5 Link mechanism 6 Link member 7 Link member 10 Cylinder for elevating 14 Frame to be pressed 16 Attachment body 20 Supporting stand 21 Guide device 22 Elevator 24 Guide roller 25 Seat device 26 times Platform 27 Seat surface 28 Multipurpose surface 31 Rotating shaft 32 Rotating device 33 Rotating motor 35 Horizontal member 36 Gate frame 38 Bar device 44 Driving motor 46 Bar member

Claims (2)

[Claims] 1. A link mechanism for raising and lowering an elevator with respect to a floor is provided between a floor and an elevator on which a seat is mounted, and the link mechanism is provided between a pair of link members. Floor is rotatably connected by a connecting shaft member, and has a horizontally extendable telescopic drive device that adjusts the angle of inclination of each link member with respect to the floor surface by moving the ends of the link members closer to and away from each other. A lifting floor device, wherein a rolling prevention member is provided for abutting on the lifting platform to prevent its rolling when the telescopic driving device is driven to lower the lifting platform. 2. A guide member is provided on one of a floor surface side and a lift platform side for guiding the lifting of the lift platform, and an elevator body guided by the guide member is provided on the other of the floor surface and the lift platform side. A roller body is provided between the guide member and the elevating body to prevent the elevating table from swaying to another side of the elevating floor device provided adjacently during the elevating operation of the elevating table. The lifting floor device according to claim 1, wherein