JP3091260B2 - Cylinder tuning mechanism for lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a cylinder tuning mechanism of a lifting device which moves up and down by a plurality of heave cylinders.

[0002]

2. Description of the Related Art For example, in a simulated experience game machine, etc.,
By exercising (up and down movement, swinging back and forth, left and right, rotating, etc.) the audience seats installed on the rocking table in accordance with images and sounds, passengers can enjoy a realistic experience (For example, Japanese Patent Application No. 2
-71217 etc.).

In order to move the shaking table up and down, ie, to perform heaving operation, a pair of heave cylinders are arranged on both sides of an extensible guide post provided upright at the center of the lower surface of the shaking table. Up and down.

[0004]

The pair of heave cylinders must be operated in synchronism with each other. For this reason, the flow rate controlled by one servo valve is divided on the way and both heave cylinders are divided. To lead to.

However, in the case of controlling a plurality of heave cylinders with a single servo valve as described above, the control flow rate of the servo valve becomes extremely large, and when a high control performance such as a simulation operation is required, the responsiveness is increased. In addition, the piping from the servo valve to each heave cylinder is long, and the resistance of these pipings may cause a decrease in responsiveness or a deterioration in flow distribution characteristics.

The present invention solves such a problem, and a control valve is attached to each heave cylinder, and the heave cylinder is connected to a telescopic guide post by a tuning link, thereby absorbing a telescopic error between the cylinders. And a tuning mechanism with excellent responsiveness.

[0007]

SUMMARY OF THE INVENTION The present invention provides an elevating mechanism comprising a telescopic guide post for guiding the vertical movement of a rocking table, and a plurality of heave cylinders for raising and lowering the rocking table arranged in parallel with the guide post. In the above, a control valve for controlling the flow rate of the working fluid supplied to each heave cylinder is provided in proximity to each heave cylinder, and each heave cylinder is connected to a guide post via a tuning link.

[0008]

Since the heave cylinders are connected to the telescopic guide post via the tuning link, even if the heave cylinders deviate in expansion and contraction, they can be absorbed by the tilt of the tuning link. In addition, the flow rate of the working fluid for expanding and contracting the heave cylinder is controlled by the respective control valves. Realize.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, a movable carriage 2 moving along a rail 1 is provided with an
It is supported so as to be able to move up and down, and swing back and forth and left and right around the center.

The upper part of the guide post 5 located at the center of the lower surface of the rocking table 3 is rotatably connected to the rocking table 3 via a universal joint 4. A pair of oscillating cylinders 6 are arranged on the lower surface of the oscillating table 3, and the oscillating table 3 swings back and forth and left and right with respect to the universal joint 4 of the guide post 5 by the expansion and contraction operation of these oscillating cylinders 6. In addition, the rocking stand 3 and the bogie 2 are connected by the steady rest link 7,
The motion of the shaking table 3 is stabilized.

A pair of right and left heave cylinders 8 are erected in parallel with the guide posts 5 so that the rocking table 3 is moved up and down while being guided by the guide posts 5.

These heave cylinders 8 are tuned links 10
To the guide post 5. Specifically, the center of the tuning link 10 is rotatably supported by the tip of the guide post 5 by the support pin 11.
The ends of the piston rods 9 of the heave cylinders 8 are respectively pin-connected to both ends of the heave cylinder 8.

Thus, even if there is a tuning error in the expansion and contraction of the left and right heave cylinders 8, the tuning link 10 is connected to the support pin 1
By tilting around 1, the error can be absorbed.

In order to control the flow rate of the working fluid (working oil) to each heave cylinder 8, a control valve 13 such as a servo valve is mounted on the outer surface of each heave cylinder 8 and provided on the heave cylinder 8. The control fluid is directly supplied and discharged through a passage (not shown).
The control valve 13 is connected to a hydraulic unit (not shown) by an external pipe 14.

The operation will be described below.

Each of the control valves 13 is tuned and controlled by a controller (not shown).
The hydraulic oil is supplied or discharged to the left and right heave cylinders 8 in the same manner, and the heave cylinders 8 expand or contract in synchronization with each other.

As a result, the guide post 5 expands and contracts to control the up-and-down movement of the rocking table 3, that is, the heaving operation.

In this case, the two control valves 13
When the flow rate of the hydraulic oil to the left and right heave cylinders 8 is varied due to the tuning error,
The stroke amount of the heave cylinder 8 fluctuates. But,
Correspondingly, the tuning link 10 is tilted about the support pin 11 and can absorb the tuning error of the left and right heave cylinders 8. The heave cylinders 8 are not excessively applied, and both heave cylinders 8 can support the rocking table 3 with substantially equal force.

The control valves 13 for controlling the flow rates of the heave cylinders 8 are directly attached to the respective heave cylinders 8 so that the pipe resistance and the like on the way can be neglected. It has good responsiveness and exhibits excellent followability even for advanced simulation operations.

[0021]

As described above, the present invention comprises a telescopic guide post for guiding the vertical movement of the rocking table, and a plurality of heave cylinders for moving the rocking table arranged in parallel with the guide post up and down. A control valve for controlling the flow rate of the working fluid supplied to the heave cylinder is provided close to each heave cylinder, and each heave cylinder is connected to the guide post via a tuning link. Can be absorbed by the inclination of the tuning link, and the flow rate of the working fluid for expanding and contracting the heave cylinder is controlled by control valves provided in close proximity to the heave cylinder, respectively. Etc., and control with good responsiveness can be realized.

[Brief description of the drawings]

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

FIG. 2 is an overall front view of the same.

[Explanation of symbols]

 3 Shaking table 5 Guide post 8 Heave cylinder 10 Tuning link 13 Control valve

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-51076 (JP, A) JP-A 1-244078 (JP, A) JP-A 56-6290 (JP, U) JP-A 2- 88696 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A63G 31/02 F15B 11/22

Claims (1)

(57) [Claims] 1. An elevating device comprising: a telescopic guide post for guiding a vertical motion of a rocking table; and a plurality of heave cylinders for raising and lowering a rocking table arranged in parallel with the guide post. A cylinder tuning mechanism for an elevating device, wherein a control valve for controlling a flow rate of a supplied working fluid is provided near each heave cylinder, and each heave cylinder is connected to a guide post via a tuning link.