JPS5935028B2 - Simulated cockpit shaking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for shaking a simulated cockpit, and in particular, it shakes a small cockpit whose roll axis passes through the inside of the simulated cockpit to create a sensation of acceleration in the cockpit that approximates that of actually flying an aircraft. This invention relates to a simulated cockpit oscillation device that is given to pilots.

In general, aircraft simulators allow the pilot in the cockpit to control the control wheels, pedals, and
When you operate the throttle etc., these operation signals become input to the computer, and the output of the computer creates a simulated visibility,
It reproduces the same conditions as when a pilot is actually flying by operating instruments and drive devices.

The above-mentioned simulated cockpit is usually mounted on the top of a base, and by driving a servo cylinder device as a drive device, the cockpit on the base is prevented from rolling (lateral shaking) and pitching (vertical shaking). It is designed to provide two degrees of freedom of motion and three degrees of freedom of motion, including heaving (up and down motion). In this type of conventional cockpit, for large aircraft in which the roll axis and pitch axis are located outside the cockpit, the center of rotation of the shaking device is located at a position away from the cockpit, and various types of shaking are carried out in the cockpit. It is possible to give dynamic motion.

However, in the case of small aircraft, the center of gravity of the aircraft is located close to the cockpit, making it structurally difficult to locate the rotation center of the conventional swinging device close to the center of gravity in the cockpit. I'm getting old. As a result, conventional cockpit drive systems cannot provide an accurate simulated experience and must restrict rolling and pitching movements. In order to solve this problem, the present application first created a simulation in which rolling, pitching, and heaping motions were applied to the cockpit of a small aircraft in which the roll axis and pitch axis passed through the interior space of the cockpit. Provided a cockpit shaking device (patent application 1984-37718)
(see specification).

However, this previous model cockpit shaking device uses independent drive devices to provide rolling, pitching, and heaping, so while it is easy to handle signals, the link members that make up the drive device The problem is that the number of links is large, and the looseness of the connecting parts of each link accumulates, making it impossible to obtain an accurate simulation effect.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a simulating cockpit shaking device that reduces the number of link members constituting the drive device and increases the rigidity of the drive device so that an accurate simulation effect can be obtained.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a simulated cockpit shaking device according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 indicates a rectangular parallelepiped-shaped base fixed on a floor surface 2, and a pedestal 4 that can be raised and lowered in the vertical direction is connected to this base 1 via a parallel link mechanism 3.

This parallel link mechanism 3 includes an upper connecting plate 5 and this connecting plate 5.
It consists of a connecting rod 6 arranged below and parallel to the plate surface,
The upper connecting plate 5 has ear shafts 5a, 5a formed protrudingly formed on both sides of its lower end, which fit into brackets 1a, 1a of the base 1, and ear shafts 5b, 5b formed protrusively formed on both sides of its upper end.
are fitted into the brackets 4a, 4a of the pedestal 4. On the other hand, the connecting rod 6 has its lower end pin-coupled to the bracket 1b, and its upper end pin-coupled to the bracket 4b. Therefore, the pedestal 4 is connected to the parallel link mechanism 3.
This allows it to move up and down while keeping its upper surface 4c horizontal.

A cockpit floor frame 7 is constructed above the pedestal 4, and this cockpit floor frame 7 has two link plates 8.
, 8, each link plate 8 is a triangular plate tapering upward, and pinch shafts 8a, 8a protruding from both sides of the lower end connect to the bracket of the yellow base 4. 4d, 4d, while the upper end ball joint 8b8b is attached to the bracket 7 on the lower surface of the cockpit floor frame 7.
It is pivotally supported by A7a.

As is clear from FIG. 2, the link plates 8, 8 are arranged in a V-shape so that the extended line of the center line in the longitudinal direction of the plates intersects at point P. axis
-X passes through this point P in a direction perpendicular to the plane of the paper.

The pedestal 4, the cockpit floor frame 7, and the link plates 8, 8 constitute a four-joint rotating chain, and both act as a lever mechanism. That is, when the link plates 8, 8 are swung about the lower end fulcrums, the cockpit floor frame 7 also oscillates, and the instantaneous center of the movement at this time is the point P. Furthermore, a first servo cylinder device 11 and a second servo cylinder device 12 are provided between the floor surface 2 and the brackets 7B and 7c provided on both sides of the cockpit floor frame 7.

These servo cylinder devices are single-sided rod-type hydraulic cylinder devices, and the rear ends of the cylinders 11a and 12a are freely connected to brackets 14 and 14 fixed to the floor surface 2 side by ball joints. On the other hand, the operating end of the piston 11b is freely connected to the bracket 7b using a ball joint, and the operating end of the piston 12b is connected to the bracket 7c using a ball joint.
are freely connected to. Furthermore, a bracket 7d fixed to the center of the front end of the cockpit floor frame 7 and the floor surface 2
and are connected by a third servo cylinder device 13.

This cylinder device 13 is also a one-sided rod-type hydraulic cylinder device, and the rear end of the cylinder 13a is freely connected to the floor surface 2 side via a bracket 14, while the piston 13
The operating end of b is freely connected to the bracket 7d of the cockpit floor frame 7 using a ball joint. A cockpit 15 is mounted on the cockpit floor frame 7, and it goes without saying that the cockpit 15 is equipped with operating mechanisms such as a control wheel, pedals, and a throttle.

Next, the operation of the simulated cockpit shaking device according to the above-described embodiment will be explained.

First, in order to give heaping (vertical shaking) to the cockpit 15, first, second and third servo cylinder devices 11 are used.
, 12, and 13 at the same time with the same stroke amount, and the pedestal 4 moves up and down while maintaining its horizontal position via the parallel link mechanism 3.

Furthermore, in order to give the cockpit 15 rolling (lateral shaking), as is clear from FIG. good.

That is, in FIG. 2, when the piston 11b of the first servo cylinder device 11 is contracted, the piston 12b of the second servo cylinder device 12 is expanded by the same amount. Then, the cockpit 15 swings around the roll axis XX passing through the point P. Furthermore, in order to impart pitching (pitching) to the cockpit 15, as is clear from FIG. and then drive the two so that the amount of expansion and contraction is the same.

These mowing cylinder devices 11, 12 and the third servo cylinder device 13 are operated in combination, and when one is extended, the other is contracted, and the mowing is performed on the cockpit floor frame 7, and the upper end of the link plates 8, 8 is Swinging around the ball joints 8b, 8b may be applied.

Note that the first, second, and third servo cylinder devices are of course driven and controlled by a hydraulic sequence circuit (not shown).

As is clear from the above description, according to the present invention, a cockpit floor frame is constructed via two link boards on the top surface of a pedestal that can be raised and lowered in the vertical direction, and a cockpit floor frame is constructed between the cockpit floor frame and the floor surface. By expanding and contracting the built-in second and third servo cylinder devices in various ways, heaping (vertical shaking), rolling (horizontal shaking), and pitching (vertical shaking) movements are imparted to the cockpit. be able to. In addition, the extension lines of the two link plates that support the cockpit are aligned with the roll axis inside the cockpit, so it is possible to apply rolling to the cockpit without bringing the working end of the drive device directly into the cockpit. . Furthermore, since the cockpit floor frame is directly driven by three servo cylinder devices, it is possible to prevent a decrease in accuracy due to looseness of links interposed in the middle.
A good simulation effect on response ability can be expected.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a simulated cockpit shaking device according to the present invention, FIG. 2 is a front view of the device, and FIG. 3 is a side view of the device. 1...base, 2...floor, 3...
... Parallel link mechanism, 4 ... Frame, 7 ...
...Cockpit floor frame, 8...Link board, 11.
...First servo cylinder device, 12...
-Second servo cylinder device, 15... cockpit.

Claims (1)

[Scope of Claims] 1. A base fixed to the floor, a pedestal supported above the base so as to be movable up and down via a parallel link mechanism, and a roll axis disposed above the pedestal connected to the cockpit. A cockpit passing near a position, a cockpit floor frame constituting the floor of this cockpit, and this cockpit floor frame and the above-mentioned mount are swingably connected, and the intersection of the extension lines of the links coincides with the above-mentioned roll axis. a line segment connecting two link plates such as the above, first and second servo cylinder devices installed between the opposing sides of the cockpit floor frame and the floor surface, and the operating ends of these servo cylinder devices; A simulated cockpit shaking device comprising a third servo cylinder device installed between a cockpit floor frame and a floor surface on an extension of the median line of the cockpit. 2. The simulated cockpit shaking device according to claim 1, wherein the upper ends of the two link plates and the cockpit floor frame are freely connected by a ball joint. 3. The simulated cockpit oscillation according to claim 1, wherein both ends of each of the first, second and third servo cylinder devices are freely connected to the floor surface and the cockpit floor frame by ball joints. Device. 4. The simulated cockpit oscillation according to claim 1, wherein the first, second, and third servo cylinder devices are arranged at positions such that a line connecting the operating ends of these pistons forms an isosceles triangle. Device.