JP2602115Y2 - Telescopic staircase with electric tilting desk - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric drive shaft device for simultaneously tilting desks in a row on both sides of a telescopic staircase with an electric tilting desk.

[0002]

2. Description of the Related Art Japanese Patent Application No. Hei.
Japanese Patent No. 258817 and drawings describe a tilting drive for a desk in a moving seat. Usually, Figures 5, 6
As shown in the figure, when there is a passage floor 6 between the desk blocks 11A and 11B adjacent to the rows a and b of each row of the movable seat, each electric drive shaft 1A for tilting the desk blocks 11A and 11B. 1B is the left and right desk blocks 11
A, 11B had to be installed for each. Since these electric drive shafts 1A and 1B are located above the passage floor 6 of each stage of the movable seat, it is not possible to connect the passage floors 6 linearly. 1
Electric drive shafts 1A, 1B for each 1A and desk block 11B
Tilting motor units M1 and M2 for rotating the desk
Had to be placed.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problem by providing an intermediate transmission for connecting a horizontal row of desk blocks and an electric drive shaft for tilting each desk of the desk block, with the passage interposed therebetween. The shaft is arranged under the floor of the walking passage of the moving seat, and the shaft is rotated by the transmission of the chain and the sprocket wheel. A shared desk tilting motor unit is provided between the moving seats adjacent to each other across the passage. It is an object of the present invention to provide an electric drive shaft device of a tilting device for a desk of a telescopic staircase with an electric tilting desk which can be installed at several places.

[0004]

SUMMARY OF THE INVENTION The electric drive shaft device of the tilting device of the telescopic staircase-type spectator seat with the electric tilting device according to the present invention has the following features. Sprocket wheels are fixed to one end of each electric drive shaft for tilting the desk and both ends of the intermediate transmission shaft installed at the lower part of the passage floor, and the sprocket wheel and the intermediate transmission shaft fixed to the electric drive shaft for tilting each desk A transmission chain is stretched between the fixed sprocket wheels, and the adjacent electric drive shafts and intermediate transmission shafts of the moving seat rows are linked, so that the desks of the moving seat rows on both sides of the passage can be simultaneously tilted. The configuration is as follows.

[0005]

The intermediate transmission shaft connecting the tilting electric drive shafts of the adjacent desk blocks in each row of seats is located below the intermediate passage floor, so that there is no obstacle to the passage, and the electric drive shaft and the intermediate transmission shaft are not affected. Are linked by the transmission of the chain and the sprocket wheels, so that the tilting of the desks in each row of adjacent chairs can be operated by one electric motor.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. The electric drive shaft device for tilting the desk of the telescopic staircase with the electric tilting desk of the present invention, as shown in FIGS.
Sprocket wheels 3A, 3D are provided at one end of each of the electric drive shafts 1A, 1B for tilting the desk blocks 11A, 11B of the moving spectator columns A, B and at both ends of the intermediate transmission shaft 2 installed below the passage floor 6. , 3B, 3C, and each electric drive shaft 1A, 1
B. Transmission roller chains 4A and 4B are respectively bridged between the sprocket wheels 3A and 3D fixed to B and the sprocket wheels 3B and 3C fixed to the intermediate transmission shaft 2,
Adjacent electric drive shafts 1A, 1
B and the intermediate transmission shaft 2 are linked to each other, and the electric drive shaft 1
A, 1B and the intermediate transmission shaft 2 are connected so that the desk blocks 11A, 11B of the movable spectator rows A, B on both sides of the passage can be simultaneously tilted.

In the figure, reference numerals 1A and 1B denote desk blocks 11A and 1B, respectively.
1B shows an electric drive shaft for tilting, and as shown in the figure, the electric drive shafts 1A and 1B are located at a position higher than the walking passage floor 6, 2 indicates an intermediate transmission shaft, and It is located below. 3A, 3B, 3C, and 3D indicate sprocket wheels, and 4A and 4B indicate transmission roller chains. Reference numeral 7 denotes a desk tilting unit base, which is provided with a gear device, a link mechanism, etc. (not shown) as a tilting device of the desk leg frame 10 for tilting the desk. Reference numerals 8A and 8B denote bearing stands for the intermediate transmission shaft. Reference numeral 9 denotes a movable floor base (deck), and a desk tilting unit base 7 having a desk tilting device capable of folding the desk 11 and tilting the desk leg frame 10 is arranged at a front end position of the movable floor base 9. As shown in FIG. 3, when the seats are deployed, the desk 11 is constantly urged to be used as a horizontal desk, and when the seats are contracted,
The desk frame 10 is tilted forward, and the desk 11 at the rear is the desk 1 at the front.
1, the desks 11 in each stage are automatically turned upright in the vertical direction. Further, as shown in FIG. 2, if the motor unit M is provided at one place on the movable floor base 9, the desk blocks 11A and 11B on the left and right sides in rows A and B can be tilted at the same time. Reference numeral 12 denotes a column fixed to the movable carriage 15 for moving the viewing seat forward and backward, and fixedly supports the movable floor base 9. Reference numeral 13 denotes a penetrating member fixed to the column 12. 16
Denotes a foldable connecting chair installed at the rear end position of the movable floor stand 9.

FIGS. 1, 3, and 4 show the tilting state of the desk 11 and the position between the desk tilting electric drive shafts 1A and 1B supported by the desk tilting unit base 7 and the intermediate transmission shaft 2 supported by the bearing bases 8A and 8B. FIGS. 3A and 3B are a front view and a side view showing a relationship of a chain transmission device of the present invention, wherein sprocket wheels 3A, 3B, 3C, and 3D and a roller chain 4A;
4B is shown. Reference numeral 5 denotes a chain guide, and reference numeral 14 denotes an end face of the desk leg frame 10 made of a hollow rectangular tube. In the present invention, the electric drive shaft 1A, the intermediate transmission shaft 2, and the electric drive shaft 1B are rotated by one motor unit M installed in each row, and each desk is rotated via a gear unit and a link mechanism (not shown). Tilt the leg frame 10 and move each desk block 11
A and 11B can be simultaneously raised and tilted, so that there is no problem when the seats are expanded or contracted. Since the present invention is configured as described above, it is only necessary to provide one motor unit for each row of rows, and the desk block for each row of each row can be simultaneously tilted by one motor. And the intermediate transmission shaft is below the floor of the passage, so there is no obstacle to walking.

[0009]

[Effects of the Invention] In the present invention, the electric drive shaft for tilting and the intermediate transmission shaft of each of the adjacent desk blocks arranged in a row across the passage are connected by a transmission chain and a sprocket wheel, and the intermediate transmission shaft is moved to a seat. By disposing it below the floor of the aisle, there is no hindrance to walking, and the number of installations of the desk-tilting motor unit base can be reduced, and the cost can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a relationship between an electric drive device for tilting a desk and an intermediate transmission shaft.

FIG. 2 is a schematic front view showing a relationship between a desk block, a passage, and a motor unit.

FIG. 3 is a schematic side view showing the relationship between a chair and a tilting desk.

FIG. 4 is a schematic side view showing a relationship between a desk tilting electric drive shaft, an intermediate transmission shaft, and a table leg frame.

FIG. 5 is a plan view of a conventional telescopic staircase with an electric tilting desk.

FIG. 6 is a schematic front view showing a relationship between a desk block, a passage, and a motor unit.

FIG. 7 is a side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Electric drive shaft for tilting machine 1B Electric drive shaft for tilting machine 2 Intermediate transmission shaft 3A Sprocket wheel 3B Sprocket wheel 3C Sprocket wheel 3D Sprocket wheel 4A Roller chain 4B Roller chain 5 Chain guide 6 Passage floor 7 Machine tilting unit base 8A Bearing stand 8B Bearing stand 9 Moving floor stand (deck) 10 Desk leg frame 11 Desk 11A Desk block 11B Desk block 12 Post 13 Translucent material 14 End surface of desk leg frame 15 Moving cart 16 Folding connecting chair A A Grandstand rows B Grandstand rows M Motor unit M1 Motor unit M2 Motor unit

Claims (1)

(57) [Scope of request for utility model registration] 1. A sprocket wheel is fixed to one end of each electric drive shaft for tilting each desk adjacent to the movable seat row and both ends of an intermediate transmission shaft installed at a lower part of a passage floor,
A transmission chain is spanned between a sprocket wheel fixed to each electric drive shaft and a sprocket wheel fixed to the intermediate transmission shaft, so that each electric drive shaft and the intermediate transmission shaft adjacent to the moving seat row are interlocked, and A telescopic staircase with an electric tilting desk, wherein each desk in the row of moving spectators can be tilted at the same time.