JPH0314525Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to a stage installed in a large hall or banquet hall of an inn or the like.

[Conventional technology]

Some large rooms and banquet halls in Japanese inns are equipped with a permanent stage, but since the stage requires a relatively large amount of space, the entire floor of the room is covered with tatami mats and a stage can be set up as needed. ing.

The latter stage is commonly referred to as a flip-up stage, as it is placed against a wall when not in use and is laid down when requested.

The flip-up stage has a rotating shaft supported by a bearing on the floor as the fulcrum for raising and lowering, and the stage is raised and lowered by fixing this rotating shaft on the stage side, fixing a gear to the rotating shaft, and driving the gear. Alternatively, one end of a wire rope is fixed to both sides of the front side of the stage, and the stage is raised and lowered by pulling or loosening this wire rope.

[Problem that the invention attempts to solve]

If the stage is raised and lowered by gear drive of the rotating shaft, a very large torque will be applied to the gear shaft, and the shaft and gear will become large pieces of equipment.

Furthermore, in the method of using wire ropes, the wire ropes remain taut when the stage is laid down, which not only looks unsightly, but also reduces the space available for the stage.

The purpose of this invention is to flip up the stage by winding and unwinding a wire rope or chain, and to create a flip-up stage in which the wire rope, etc. is loosened and the stage does not appear when the stage is laid down. be.

[Means for solving problems]

In order to solve the above problems, this invention consists of a flip-up stage main body, a pair of left and right parallel arms attached to both sides of the stage main body, and a drive mechanism that raises and lowers the arms. One end of the arm can be freely raised and lowered through a rotating shaft supported by a bearing on the floor, and the other end can be fixed with a wedge mechanism that can be connected and disconnected. This is a flip-up stage consisting of a machine that pulls a wire rope, chain, etc., which is disposed on the upper part of the back side of the side wall that should be located on the back side, and has one end fixed to the other end of the arm.

[Effect]

When the arm raising/lowering drive mechanism is activated to let out wire ropes, chains, etc., the left and right pairs of arms fall down with the stage body attached and stop in a horizontal position, and then are connected by the wedge mechanism that fixes the stage body. By releasing this and driving the drive mechanism in the reverse direction, only the left and right arms stand up.

〔Example〕

FIG. 1 is an omitted perspective view of an example of a flip-up stage device according to the present invention, FIG.
The figure is a partially cutaway plan view of the same, and 1 is a stage body, 2 is a pair of arms attached to both sides of the stage body 1, and 3 is a drive mechanism for raising and lowering the arms 2. The arm 2 can be portal-shaped. The stage main body 1 and the arm 2 are supported by a bearing 6 attached to the floor surface 5 at one end side (the fulcrum side of the ups and downs) at the front of the front wall 4 of a large hall such as a banquet hall and at a position close to the front wall. A rotating shaft 7 is passed through, and the rotating shaft 7 is used as a fulcrum to be raised toward the front wall 4 or to be brought down to the floor 5.

Further, the stage main body 1 and the other end side of the arm 2 can be fixed by a wedge mechanism 8 which can be freely connected and disconnected.

The illustrated wedge mechanism 8 includes, for example, a power cylinder 9 built into the stage main body 1, and a hole 11 is provided on the arm 2 side into which a protruding end of the power cylinder's advancing and retracting rod 10 fits.

However, instead of the power cylinder, an electric magnet or manual connection type can be used.

A drive mechanism 3 for raising and lowering the arm 2 is installed on the upper back side of a front wall 4 of a large hall, etc., and is driven by a motor 12.
A reduction gear 13 driven by a drive shaft 1 of the reduction gear 13
A shaft 16 is provided with a drum 15 that is connected to and rotates with the arm 2. A wire rope 17 is wound around the drum 15, and the tip of the wire rope is formed at the upper end of the arm 2 in the upright position. Although it is attached to an internal metal fitting 19 through a vertical elongated hole 18 via a tension bolt 20, a chain can be used instead of the wire rope 17, and in that case, a sprocket can be used instead of the drum 15.

The arm 2's lifting mechanism 3 rotates the wire winding drum 15 gently by pressing a push button switch (not shown), rotates in the wire payout direction when the arm 2 is in the upright position, and rotates the wire in the wire payout direction when the arm is in the prone position. It rotates in the winding direction and automatically stops at the end, but its electrical circuit is well known and is not shown.

When the stage main body 1 is currently in use as shown in Figs. 1 and 2, i.e., lying down on the floor 5, when the use of the stage is finished, pressing the push button switch will cause the arm 2 to fall down and hold the stage. Since it is attached to both sides of the stage main body 1, the wedge mechanism 8 is operated to remove the stage main body 1.
When the stage main body 1 is locked to the arm 2 and the push button switch is pressed again, the stage main body 1 is connected to the arm 2 and both are in the upright position (retracted position).

The wedge mechanism 8 can be operated continuously and automatically by operating the push button switch of the arm raising/lowering drive mechanism 3, but it can also be manually connected.

〔effect〕

The flip-up stage device of this invention has the following effects.

(1) Wire ropes, chains, etc. do not appear on the stage when the stage is used with the stage body laid down, so wire ropes do not appear on the stage as seen in conventional methods where the stage is laid down using wire ropes. There is no.

(2) Even when the stage body is laid down and used, wire ropes and the like do not appear as described above, so the stage can be used widely.

[Brief explanation of the drawing]

FIG. 1 is an omitted perspective view of an example of a flip-up stage device according to the present invention, FIG. 2 is an enlarged longitudinal sectional left side view of the same in a usage mode, and FIG. 3 is a partially cutaway plan view of the same. DESCRIPTION OF SYMBOLS 1...Stage body, 2...Arm, 3...Arm raising/lowering drive mechanism, 6...Bearing, 7...Rotating shaft, 8...Wedge mechanism, 9...Power cylinder, 10...Rod, 11... ...Rod tip fitting hole, 13...Reducer, 15...Drum of shaft 16, 17...Wire rope, 19...Wire rope mounting bracket.

Claims (1)

[Scope of utility model registration request] It consists of a flip-up stage main body, a pair of left and right parallel arms attached to both sides of the stage main body, and a drive mechanism that raises and lowers the arms, and the stage main body and the arms are supported by a bearing on the floor at one end thereof. The arm can be raised and lowered freely through the rotating shaft, and the other end can be fixed with a wedge mechanism that can be connected and disconnected, and the drive mechanism for arm raising and lowering is placed on the upper back side of the side wall that should be located on the back side when the stage body is in the upright position. 1. A flip-up stage device comprising a machine that pulls a wire rope, chain, or the like with one end fixed to the other end of the arm.