JPH01138064U - - Google Patents
Info
- Publication number
- JPH01138064U JPH01138064U JP3452888U JP3452888U JPH01138064U JP H01138064 U JPH01138064 U JP H01138064U JP 3452888 U JP3452888 U JP 3452888U JP 3452888 U JP3452888 U JP 3452888U JP H01138064 U JPH01138064 U JP H01138064U
- Authority
- JP
- Japan
- Prior art keywords
- tier
- pair
- bed
- floor
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
第１図は、本考案の一実施例を一部切欠して示
す平面図、第２図は、第１図の中央線における縦
断面図、第３図は、第２図におけるスプロケツト
列を拡大して示す縦断面図、第４図は、第３図の
―線による縦断面図、第５図は、従来の移動
観覧席を示す概略側面図である。
１……移動観覧席、２，３，４……段床、２ａ
，３ａ，４ａ……台板、２ｂ，３ｂ，４ｂ……前
板、２ｃ，３ｃ……後板、２ｄ，３ｄ，４ｄ……
側板、５……取付板、６，７……軸、８，９……
案内スプロケツト、１０……連結軸、１１……従
動スプロケツト、１２，１３……ローラーチエー
ン。
Fig. 1 is a partially cutaway plan view of an embodiment of the present invention, Fig. 2 is a vertical sectional view taken along the center line of Fig. 1, and Fig. 3 is an enlarged view of the sprocket row in Fig. 2. FIG. 4 is a longitudinal sectional view taken along the line --- in FIG. 3, and FIG. 5 is a schematic side view showing a conventional movable audience seat. 1...Movable bleachers, 2, 3, 4...Dan floor, 2a
, 3a, 4a...base plate, 2b, 3b, 4b...front plate, 2c, 3c...rear plate, 2d, 3d, 4d...
Side plate, 5... Mounting plate, 6, 7... Shaft, 8, 9...
Guide sprocket, 10... Connection shaft, 11... Driven sprocket, 12, 13... Roller chain.
Claims (1)
次入れ子式に収納し、かつ使用時には、各段床を
前方に延伸させて階段状とするようにした移動観
覧席において、 前位の段床の後縁寄りの左右の側壁に、従動ス
プロケツト及び１対の案内スプロケツトからなる
スプロケツト列をそれぞれ配設するとともに、前
記従動スプロケツト同士を、同期回転可能に連結
軸で連結し、かつこの段床に続く後位の段床の下
面両側に、前端部が前後を向くように止着した左
右１組のチエーンを、その中間部が前記スプロケ
ツト列間にそれぞれ巻回し、かつ後端部を段床の
後部両側に、平行をなすようにして止着したこと
を特徴とする移動観覧席における段床直進装置。[Scope of claim for utility model registration] When not in use, each tier is stored in a nested manner under the rear tier, and when in use, each tier is extended forward to form a staircase shape. In the movable spectator seats, sprocket rows each consisting of a driven sprocket and a pair of guide sprockets are arranged on the left and right side walls near the rear edge of the front tiered floor, and the driven sprockets can rotate synchronously with each other. A pair of left and right chains are connected to each other by a connecting shaft and are fixed to both sides of the lower surface of the rear step bed following this step bed so that their front ends face forward and backward. A tier bed straight-advancing device for movable bleachers, characterized in that each of the tiers is wound around the tier and its rear end portions are fixed in parallel to both rear sides of the tier floor.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3452888U JPH0427964Y2 (en) | 1988-03-17 | 1988-03-17 | |
| EP89301016A EP0337592B1 (en) | 1988-03-17 | 1989-02-02 | Stepped floor moving apparatus for movable stand |
| FR9304940A FR2704586B3 (en) | 1988-03-17 | 1993-04-27 | Movement device for a stepped floor of a mobile step. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3452888U JPH0427964Y2 (en) | 1988-03-17 | 1988-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01138064U true JPH01138064U (en) | 1989-09-21 |
| JPH0427964Y2 JPH0427964Y2 (en) | 1992-07-06 |
Family
ID=31261234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3452888U Expired JPH0427964Y2 (en) | 1988-03-17 | 1988-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427964Y2 (en) |
-
1988
- 1988-03-17 JP JP3452888U patent/JPH0427964Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427964Y2 (en) | 1992-07-06 |