JPH0312915Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention divides the entire tiered floor, which is lowered in a step-like manner toward the front, into a plurality of front and rear sections, and supports each tiered floor block movably in the front and rear directions. This invention relates to a movable spectator seat in which the front tiered floor block can be stored in the rear tiered floor block when moved rearward.

(Prior Art) To explain the conventional bleachers with reference to FIGS. 5, 6, and 7, numerals 1 to 9 are inverted L-shaped steel frame structural columns that are movable in the front and rear directions; It can be moved independently back and forth. In addition, a horizontal stepped floor protrudes forward from the upper end of each of the pillars 1 to 9, and a row of seats 10 is fixed on it.
When moving rearward, the front column is housed in the rear column, as shown in FIG. 7, and the entire structure is folded into a superposed state.

Further, FIGS. 8 and 9 show other conventional examples.
In this case, an inverted L-shaped steel frame structural column 11
27 are constructed as before, while seats 28
is mounted on the step floor so that it can be raised and folded, and when the seat 28 is moved rearward and folded, the seat 28 is folded down and the entire seat 28 is stored in a stacked state.

(Problems to be solved by the invention) In the seats shown in Figures 5, 6, and 7, the seats 10 are fixed, and when all the tiers are retracted, at least the seats 10 are separated between the front and rear tiers. A space equal to the height is required, creating wasted space. Furthermore, in the bleachers shown in FIGS. 8 and 9, when all the tiers are to be retracted, the seats 28 on each tier must be folded down one by one, making the retracting operation troublesome.

The present invention addresses the above-mentioned problems by dividing the entire tiered floor, which is lowered in a step-like manner toward the front, into a plurality of tiered floor blocks in the front and rear, and supporting each of the tiered floor blocks so as to be movable in the front and rear directions. In a movable spectator seat in which the front tier block is sequentially stored into the rear tier block when the seat is moved rearward, all of the tiers are replaced by a smaller number of tiers than the number of tiers. Among the seats that are divided into blocks and arranged in a row in the front-rear direction and left-right direction on each tiered floor block, a virtual storage space extends horizontally forward from the bottom surface of the floor member of the rear tiered floor block. Seats that do not exceed the storage height limit line are fixed to the tiered floor block, and seats that exceed the storage height limit line are attached to the tiered floor block so that they can be raised and folded back and forth. Each seat is connected via a connecting rod, and
This relates to a movable spectator seat characterized in that at least one of the seats is provided with a drive device for raising and lowering, and the purpose of this is to The object of the present invention is to provide improved viewing seats that do not create wasted space.

(Means for Solving the Problems) The movable bleachers of the present invention are constructed as described above, and when storing each tiered floor block, the raising/lowering drive device is operated to raise the virtual storage height. Seats that exceed the limit line are lowered forward via the connecting rod, and the front tier block can be pushed into the rear tier block and stored, so when each tier block is stored, the front and rear tier blocks are folded forward. No wasteful space is created in between.

(Embodiment) Next, the bleachers of the present invention will be explained with reference to an embodiment shown in Figs. This is a support of the steel frame structure of the floor block, and in the case of this embodiment, it is divided into 7 blocks, and the lowest No. 1 floor block at the front is supported by the supports 35' and 35. A wheel 36 is attached to the lower end of each support column 35', 35, and the No. 1 tier block is self-supporting. In addition, the No. 2 tier floor block to No. 7 tier floor block located behind the No. 1 tier floor block have steel frame structure columns 34 to 29 and a tiered floor 43 protruding forward from each of the same columns 34 to 29. Wheels 36 are also attached to the lower ends of each of the pillars 34 to 29 of the No. 2 tier floor block to No. 7 tier floor block. Also, the same No.2 floor block~
The tiered floor 43 of the No. 7 tiered floor block as a whole is
Each of the stepped floors 43 also becomes lower in a step-like manner toward the front. Further, 38 to 41 are rails for running the tiered blocks, with a total of 8 rails, 4 on the left and right, laid on the floor surface, and the wheels 36 can roll on the rails 38 to 41 for running the tiered blocks. It's on. In addition, 42 is a truss structure, and each of the above-mentioned tiered floors 3
7 and 43 are supported by the truss structure 42. In addition, the guide rollers provided at the upper ends of the columns 29 of the No. 7 tier floor block are rotatably engaged with guide rails attached to the ceiling of the fixed platform 50, and the entire bleachers are moved backwards. When the seats are moved to the front, they are stored in a space within the fixed platform 50 as shown in Figure 3, and when the entire bleachers are pulled forward, they unfold as shown in Figures 1 and 2, with the front side forming a low staircase-like structure. Becomes a viewing seat.

FIG. 4 shows the details of each seat arranged on each of the tiered floor blocks in the front, rear, left and right directions. That is, 51
is a floor plate (a part of the stepped floor) provided in a stair-like manner on each stepped bed block, and each of the same floor plates 51 is connected to the stepped bed 37,
It is one with 43. Also, 55 is the leg of each seat,
The backrest 52a extending upward from the leg portion 55 of the front row seat is connected to an imaginary storage height limit line H extending horizontally forward from the lower surface of the floor member of the rear stepped floor block.
The legs 55 of the front row seats are fixed to the step floors 37 and 43. Moreover, those higher than the storage height limit line H are constructed as follows. That is, 56 connects each leg 55 to the floor plate 51.
Pins pivoted to side brackets, 53a to 56a
is a backrest pivotably attached to the upper end of each of the legs 55 and can be raised and lowered in the direction of the arrow B; seat parts 53b to 56b are pivoted to the upper end of each of the legs 55 and can be raised and lowered in the direction of the arrow C; 57 is a connecting rod connecting the lower ends of the legs 55 via pins 58; 59 is a bracket fixed on the stepped floors 37, 43; 60;
is a cylinder pivotally connected to the bracket 59; 61 is a piston rod of the cylinder 60; the piston rod 61 is pivotally connected to the lower end of the leg 55 via a pin 58; when the cylinder 60 is actuated in the extension direction; , the movement is transmitted to each seat other than the front row seat via the connecting rod 57, and when the cylinder 60 is operated in the retracting direction so that each seat reclines to the position indicated by the two-dot chain line, The movement is transmitted to each seat other than the front row seat through the connecting rod 57, so that each seat stands up to the solid line position. Note that arrow A in FIG. 4 indicates the moving direction of the step bed block, and arrow D indicates the moving direction of the cylinder
0 operation direction is shown.

(Function) Next, the function of the bleachers shown in FIGS. 1 to 4 will be explained. When the cylinder 60 is actuated in the extension direction, the movement is transmitted to each seat other than the front row seat through the connecting rod 57, so that each seat reclines to the position shown by the two-dot chain line. When this condition occurs, No. 1
Step bed blocks to No. 7 step bed blocks are stored in the space of the fixed platform 50 (see FIG. 3). Also, from this state, No. 1 floor block ~ No.
After the seventh floor block is pulled out and placed in the state shown in Figures 1 and 2, when the cylinder 60 is operated in the retraction direction, the movement is transmitted to each seat other than the front row seat via the connecting rod 57. , each seat will stand up to the solid line position and become available for viewing.

(Effects of the invention) As described above, when each tier block is stored, the invention operates the raising drive device to lower the seats that exceed the virtual storage height limit line forward via the connecting rod. Since the front tier block can be stored by pushing the block into the rear tier block, there is an effect that no wasted space is created between the front and rear tier blocks when each tier block is stored.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the movable bleachers according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a side view showing its stored state, and Fig. 4 shows details of the seats. 5 is a side view showing a conventional movable spectator seat, FIG. 6 is a front view thereof, FIG. 7 is a side view showing its stored state, and FIG. 8 is a side view showing another conventional example. , FIG. 9 is a side view showing the stored state. No. 1 to No. 7... Step floor block, 37, 43...
Step floor, 52a-52b...Fixed seat, 53a,
53b to 56a, 56b... seats that can be raised, 5
7... Connecting rod, 60... Lifting drive device, H...
An imaginary storage height limit line extending horizontally forward from the bottom surface of the floor member of the rear stepped floor block.

Claims (1)

[Scope of utility model registration request] The entire tier floor, which lowers in a step-like manner toward the front, is divided into a plurality of front and rear tier blocks, and each of the tier blocks is supported so as to be movable in the front-rear direction, so that when moved rearward, the front tier In a movable spectator seat in which the floor blocks are sequentially stored in the rear tiered floor blocks, all the tiered floors are divided into a smaller number of tiered floor blocks, and each of the tiered floor blocks is placed on top of each of the tiered floor blocks. Among the seats arranged in a row in the front-back and left-right directions, those seats that do not exceed an imaginary storage height limit line extending horizontally forward from the lower surface of the floor member of the rear tiered floor block are placed on the tiered floor. The seats that exceed the stowage height limit line are attached to the tiered floor block so that they can be raised and lowered in the front and rear directions, and the seats that can be raised and lowered at the same time are connected via connecting rods. A movable spectator seat characterized in that at least one of the seats is provided with a drive device for raising and lowering it.