JP2628282B2 - Deck guide device for telescopic movable bleachers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extendable movable deck seat guide device capable of storing multi-stage decks in a stair-like configuration or in a vertically stacked configuration.

[0002]

2. Description of the Related Art Conventionally, in a telescopic movable spectator which can be stowed by pulling out a multi-stage deck to the front and deploying it in a step-like manner, and pushing the deck backward to be stuck up and down. , Actual fair 3-1307
As disclosed in Japanese Patent Application Laid-Open Publication No. H10-209, there is known a parallel guiding device that moves a movable deck straight in a front-rear direction by engaging a gear with a rack-shaped engagement strip.

[0003]

However, in such means using the engagement strips in the form of gears and rack gears, if the upper moving deck jumps up or the lower moving deck pitches, the gear may be derailed. Also, if the moving directions of the upper and lower moving decks are shifted, the gears are derailed or are in an excessively meshed state, so that the gears are liable to be damaged.

[0004]

SUMMARY OF THE INVENTION The present invention solves such a problem, and provides each moving deck so that it can be moved back and forth accurately and effectively straightly. Can be moved forward and backward by the bogie frame in a telescoping movable seat configured to be retractable by pulling it forward and deploying it in a stair-like manner, and by pushing it backwards so that it can be stored vertically. On the lower surface of the moving deck and the fixed deck at the uppermost rear, fixed horizontal rails that are horizontal in the front-rear direction and that match the vertical direction are fixed, and a horizontal plane above the rear of the rail behind each moving deck Each of the supporting frame plates is installed, and two of them are provided on the front and rear positions of each supporting frame plate. Total was Shideritsu to allow clamping Le 4
The guide rollers are arranged on a vertical axis.

[0005]

Therefore, the four guide rollers at the front and rear positions above the rear part of the lower moving deck come into contact with both side surfaces of the rail below the upper deck, so that the upper and lower moving decks jump or pitch. However, each guide roller does not come off from the side of the rail, and both guide rollers sandwich the rail at the front and rear positions, so that each moving deck can be straightened accurately and smoothly. Can be moved back and forth effectively.

[0006]

6 and 7 schematically show a typical telescopic movable spectator seat. Both columns 6 and both stays are vertically suspended from the rear of both fixed frames 1a to be fixed on the floor.
7 are fixed to the rear lower surfaces on both sides of the rearmost upper fixed deck 2f, respectively, and both columns are provided from the lower rear surfaces of the moving decks 2e, 2d, 2c, 2b, and 2a, which are sequentially lower than the fixed deck 2f. 6 and both stays 7 are respectively suspended, and the lower portions of the columns 6 and the stays 7 are connected and fixed to the rear portions of the respective bogie frames 1 which are equipped with the wheels 8 and are displaced from each other in the horizontal direction. , Each moving deck 2a,
2b, 2c, 2d, and 2e, support chairs 9 provided at the rear portions are provided with folding chairs 10 which can be turned upside down, and as shown in FIG. Or the chair 10 as shown in FIG.
, And is pushed backward, so that it can be housed below the fixed deck 2f in a vertically overlapping state so as to be housed below the fixed deck 2f.

Rails 3 which are horizontal in the front-rear direction and are vertically aligned are fixed to the lower surface of the center of the movable decks 2a to 2e and the fixed deck 2f in the width direction, respectively. Parallel side surfaces 3 upright so that is constant
a, 3b, and the bent edges 3c, 3d formed respectively on the upper portions of both side surfaces 3a, 3b are fixedly attached to the lower surface of the deck.

At the rear upper part of each rail 3 extending to the rear of each of the moving decks 2a to 2e, mounting frame plates 12, 12 having upright supporting columns 11a, 11b are fixed. The mounting frame plates 12, 12 are joined to the bent edges 3c, 3d, and are fastened and fixed by the bolts 13a and the nuts 13b, and are extended rearward from above the frame plate 14 mounted above the rear portion of the deck. The lower surface of the center of the frame plate 4 in the horizontal direction is fixed to the upper ends of the columns 11a and 11b. The support frame plate 4 is formed in a trapezoidal shape in a plan view and mounted horizontally.

Above the front / rear position of each support frame plate 4, a total of four vertical guide rollers 5 which can be in contact with the parallel side surfaces 3a, 3b of the upper rail 3 respectively.
a, 5b and 5c, 5d are mounted on a shaft, and both front guide rollers 5a, 5b and rear guide rollers 5c, 5d are mounted.
And each bush 1 to be fitted to the support frame plate 4
5, the support bolts 16 of the respective guide rollers are fitted, and the nuts 16a are tightened.

Therefore, when each of the movable decks 2a to 2e is pulled out forward and deployed stepwise or pushed backward to be stored below the fixed deck 2f, four movable decks 2a to 2e at the front and rear positions above the rear portion of the lower movable deck are provided. Guide rollers 5a to 5d are in contact with both side surfaces 3a and 3b of the rail 3 below the upper deck, so that even if the upper and lower moving decks jump or pitch, the respective guide rollers 5a to 5d are rotated. 5d
Does not come off the rail side surfaces 3a, 3b,
Left and right guide rollers 5a, 5b and 5 in the front-rear position
Since c and 5d sandwich the rail 3, each moving deck 2
a, 2e can be moved back and forth accurately and straightly so as not to meander, and smoothly and effectively.

[0010]

As described above, according to the present invention, each moving deck (2a)
When pulling out (2e) forward and deploying it stepwise or pushing it back to store it below the fixed deck (2f), the four vertical guide rods at the front and rear positions above the rear part of the lower moving deck -Rails (5a) to (5d) are rails below the upper deck
(3) will be in contact with both sides (3a) and (3b), so that even if the upper and lower moving decks jump or pitch,
The rails (5a) to (5d) do not deviate from the rail side surfaces (3a) and (3b), and both right and left guide rollers (5a) and (5
(b), (5c) and (5d) sandwich the rail (3), so that each of the movable decks (2a) to (2e) is accurately and straightly and smoothly back and forth so as not to meander. It can be moved, and has a feature that it can be easily implemented with a simple structure.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a side view showing a part of a seat.

FIG. 3 is an enlarged side view showing a part of FIG. 2;

FIG. 4 is a rear view schematically showing a seat.

FIG. 5 is a rear view showing a part of FIG. 3;

FIG. 6 is a side view showing a stored state of a grandstand.

FIG. 7 is a side view showing a deployed state of a seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dolly frame 2a-2e Moving deck 2f Fixed deck 3 Rail 4 Support frame plate 5a-5d Guide roller

Claims (1)

(57) [Claims] A cart frame for a telescoping movable seat configured to be able to be stowed by pulling out each of the multi-stage decks forward and deploying them in a stair-like manner and to be pushed backward to be stacked vertically. The lower surface of each of the movable decks (2a) to (2e) which can be moved back and forth according to (1) and the fixed deck (2f) at the rearmost upper side is horizontal in the front-rear direction and has a constant horizontal width matching the vertical direction. Of each moving deck (2a)
A horizontal support frame plate (4) is erected above the rear part of the rail (3) behind (2e), and two right and left support frame plates are provided above the front and rear positions of each support frame plate (4). Lateral parallel sides (3a) (3) of the upper rail (3)
b) can be brought into contact with each other to hold the rail (3)
Cormorants Shideritsu the total of four guide rollers (5a) ~ (5d)
A deck guide device characterized by comprising a shaft mounted on a vertical axis .