JPH0232762Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to stages installed in various buildings.

(Prior Art) In a conventional stage, legs each formed at a predetermined height are used, a stage floor is supported on the legs, and the height of the floor is set.

(Problems to be Solved by the Invention) Therefore, the conventional stage requires a large number of legs to set its level, and is not easy to transport, store, and handle.

(Means for Solving the Problems) The present invention was proposed in order to solve the above problems, and consists of a pair of left and right arms whose lower ends are pivoted so as to be able to rise and fall with respect to the base frame. A slide bracket slidably engaged with the peripheral frame of the stage floor in which a plurality of locking holes are arranged in rows is pivotally supported at the upper end, and the slide bracket can be moved forward and backward by remote control. This invention relates to a stage characterized by having a built-in pin that engages and disengages from a locking hole.

(Function) Since the present invention is constructed as described above,
The locking pin provided on the slide bracket pivotally supported at the upper ends of the pair of left and right arms is retracted, and the locking between the locking pin and the locking hole in the peripheral frame of the stage floor is released. When the stage floor is raised and lowered, the left and right arms rotate vertically around the pivot points relative to the base frame, and as a result, the slide brackets at the upper ends of each arm move against the peripheral frame of the stage floor. slide along.

When the stage floor reaches a predetermined level, the locking pin provided on the slide bracket is moved forward by remote control and locked into the locking hole provided in the peripheral frame. , which supports the slide bracket at a predetermined level.

(Effects of the invention) According to the invention, the height of the stage floor can be easily adjusted as described above, and the stage floor can be adjusted by adjusting the position and number of the locking holes arranged in a row on the stage floor peripheral frame. The level can be adjusted in multiple stages.

As described above, according to the present invention, there is no need to use many types of legs as in the conventional method, and transportation and handling are convenient. Furthermore, by maximally lowering each arm onto the base frame, the stage of the present invention can be stored to a minimum size.

Furthermore, according to the present invention, the stage floor can be tilted by changing the inclination angles of the left and right arms, so that it can also be used for a tilting stage.

(Example) The present invention will be described below with reference to the illustrated embodiments.

Reference numeral 1 denotes a base frame, and a left arm 2 and a right arm 3 each having an H-shaped cross section are pivotally attached at the lower ends thereof to the left and right ends of the base frame so as to be movable up and down.

Note that each of the left and right arms 2 and 3 is composed of a pair of front and rear arms, and a bracing 4 is connected between the two arms 2, 2, 3, and 3. (See Figure 3) A slide bracket 5 is pivotally attached to the upper end of each of the arms 2 and 3, and the bracket 5 is slidable on a peripheral frame 8 in which a large number of locking holes 7 are arranged in a row on a stage floor 6. is engaged with.

9 in the figure is the surface plate of the stage floor. Fourth
The figure shows the attachment portion of the slide bracket 5 to the peripheral frame 8, and includes a slot portion 5a opening at the vertical upper end of the slide bracket 5 which is pivotally attached to the arms 2 and 3 via pins 10, and a groove hole portion 5a opening at the lower end of the same portion 5a. A vertical piece 8a of the peripheral frame 8 and a horizontal piece 8b at the lower end of the piece 8a are slidably inserted into the communicating horizontal recess 5b, and the upper part of the slide bracket 5 is perpendicular to the slot 5a. In the horizontal hole 5c drilled by
A locking/disengaging pin 11 is inserted into the locking hole 7 formed in the vertical piece 8a so as to be movable forward and backward.
The rear end of the slide bracket 5 extends into a cannula 5d connected to the rear end of the slide bracket 5, and is slidably fitted into a plug 12 screwed onto the open end of the cannula 5d. , a spring 13 is wound around the pin 11 between the stopper 12 and the back wall of the sleeve portion 5d, and the spring force of the spring 13 causes the pin 11 to always move forward within the horizontal hole 5c; It is biased so as to be locked into the locking hole 7 of the peripheral frame 8.

A flexible wire rope 1 is attached to the end of the pin 11.
4 is connected, and the end of the wire rope 14 is connected to a handle 15 provided on the surrounding frame 8. By grasping and rotating the handle 15, the wire rope 14 resists the spring force of the spring. When pulled, the pin 11 retreats within the horizontal hole 5c and is disengaged from the locking hole 7 of the peripheral frame 8. When the handle 15 is released, the pin 11 moves forward in the horizontal hole 5c of the slide bracket 5 due to the spring force of the spring 13 as described above and is locked in the locking hole 7 of the peripheral frame 8. As described above, the pin 11 is configured to engage and disengage from the locking hole 7 of the peripheral frame 8 by remote control using the handle 15.

A slide block 16 is attached to each of the arms 2 and 3.
is slidably attached to the block 16 and the surrounding frame 8.
Both ends of the stay 17 are pivotally connected via pins.

Reference numeral 18 denotes an auxiliary jack which is pivotably mounted on the base frame 1, and a hollow slide rod 19 is slidably fitted into the lower cylinder, and both sides of the inverted U-shaped leaf spring 20 housed in the rod 19 are attached. The slide rod 19 is fixed by the stop pins 21 provided on the pieces engaging with the through holes arranged in the lower cylindrical body, and the stage floor 6 is auxiliary supported by the upper end receiving screw 22. It's getting old.

In the figure, 23 is a height fine adjustment screw attached to the base frame 1.

Since the illustrated embodiment is configured as described above, the handle 15 is grasped and rotated to move the pin 11 backward against the urging force of the spring 13, thereby engaging the locking hole 7 of the peripheral frame 8. When the stage floor 6 is lifted and lowered, the left and right arms 2 and 3 rotate and raise and lower, and the slide bracket 5 moves up and down the peripheral frame 8.
slide along. When the stage floor 6 reaches a predetermined height and the handle 15 is released, the pin 11 engages with the locking hole 7 of the peripheral frame 8 due to the urging force of the spring 13, and the stage floor 6 is fixed at that position.

In this way, according to the embodiment, the left and right arms 2 and 3 are raised and lowered, and when the handle 15 is operated, the arms 2 and 3 are pivoted to the upper ends of the arms 2 and 3, and are moved along the peripheral frame 8 of the stage floor 6. Pin 11 arranged on the sliding slide bracket 5
The level of the slide bracket 5 can be easily adjusted by engaging and disengaging the locking holes 7 arranged in a row in the peripheral frame 8, and there is no need to use various types of legs as in the conventional case. Therefore, it is easy to transport and handle, and by lowering the arms 2 and 3 to the maximum extent, the stage can be stored in a minimum size.

Furthermore, as shown by the chain lines in FIG. 1, by changing the inclination angles of the left and right arms 2 and 3, the stage floor 6 can be tilted and used as a tilting stage.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the stage according to the present invention, FIG. 2 is a partially cutaway plan view,
Fig. 3 is a side view thereof, Fig. 4 is a longitudinal side view showing the attachment part between the slide bracket and the peripheral frame of the stage floor, Fig. 5 is a side view of the auxiliary jack part,
FIG. 6 is a partial vertical sectional view of the same jack. DESCRIPTION OF SYMBOLS 1... Base frame, 2, 3... Arm, 5... Slide bracket, 6... Stage floor, 7... Locking hole, 8... Peripheral frame, 11... Pin for locking and disengaging from the locking hole, 14...Flexible wire rope, 1
5...Handle.

Claims (1)

[Scope of utility model registration request] A slide is slidably engaged with the peripheral frame of the stage floor, which has a plurality of locking holes arranged in a row at the upper ends of a pair of left and right arms whose lower ends are pivotally connected to the base frame so as to be able to rise and fall freely. What is claimed is: 1. A stage that pivots a bracket and has a built-in pin in the slide bracket that moves forward and backward by remote control and engages and disengages from the locking hole.