JPS6226722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an input device for an electronic computer or the like.

Traditionally, simulations of viewing three-dimensional solids from various angles have been performed using electronic computers, but changing the perspective direction of a perspective view of a three-dimensional solid on a graphic display requires an extremely large number of steps. data must be entered. Conventionally, to input this data, command keys, one-dimensional dials, joy sticks that can input two parameters at the same time, etc. are used.
Furthermore, three-dimensional joy sticks with a volume attached to the tip of the stick are also used,
You have to perform those complicated and repeated operations,
Moreover, since there is no direct relationship between these operations and changes in the shapes on the graphic display, it is natural to use the same operations as moving a three-dimensional object on a desk to change the shapes on the graphic display. is not possible.

In view of the above, the present invention is configured so that a large amount of data can be input into an electronic computer by an extremely simple operation, and a certain relationship can be established between the operation and the output. The present invention aims to provide an input device that can change the display of a solid on a graphic display using a natural operation similar to moving the original solid.

In order to achieve the above object, the input device of the present invention rotatably supports a first rotary frame disposed inside the fixed frame, and a second rotary frame disposed therein by the first rotary frame. The frame is rotatably supported around an axis perpendicular to the axis of rotation of the first rotating frame, and the other ends of four connecting links connected to the four corners of the second rotating frame via universal joints are connected to each other by universal joints. The other end of the center stay, which is rotatably supported by a ball bearing on the second rotating frame, is connected to the handle via a universal joint, and the first rotation by the connecting link is connected to the handle via a universal joint. a rotation detector that detects rotation of the frame and the second rotating frame;
and a rotation detector for detecting rotation of the center stake.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIG. 1, 1 is an operating section and 2 is a detecting section. It is configured so that it can be detected and input into a computer or the like.

As can be seen from FIGS. 1 and 2, the detection unit 2 includes a fixed frame 3 to be fixed at an arbitrary position, and a first rotating frame 4 disposed inside the fixed frame 3.
is rotatably supported around an axis _L1 by rotating shafts 5a and 5c between two opposing sides 3a and 3c of the fixed frame 3. Furthermore, the first rotating frame 4
The second rotating frame 6 disposed inside the first rotating frame 4
The other two sides 4b, 4d to which the rotating shafts 5a, 5c are not attached are rotatably supported by rotating shafts 7b, 7d. These rotating shafts 7b, 7d
The axis _L2 is perpendicular to the axis _L1 .

The operating section 1 is attached to the second rotating frame 6 in the detection section 2.
As a means for transmitting the movement of the handle 10, a mechanism combining a compound parallel link and a universal joint is used. In this mechanism, connecting links 12 are attached to the four corners of the second rotating frame 6 through universal joints 11, and the other ends of the four connecting links 12 are attached to the four corners of the handle 10 through universal joints 13. It is constructed by attaching the It is preferable that the universal joints 11 provided at the four corners of the second rotation frame are arranged in a plane including the axes _L1 and _L2 , and the universal joints 13 provided in the handle 10 are arranged in a plane parallel to the above-mentioned plane. It is preferable to place

In order to detect the movement of the handle 10 and convert it into an electrical signal, the detection section 2 is provided with four rotation detectors each consisting of a potentiometer or the like.

The first and second rotation detectors 21 and 22 are connected to the axis
It detects the rotation of the handle 10 around L ₁ and L ₂ , and the two adjacent sides 3c of the fixed frame 3,
3b, an arc-shaped first lever is fixed on the outside of the detection shaft 25 so that the axes of the detection shafts 25 coincide with the axes L ₁ and L ₂ , and slits 28 and 29 are formed in the detection shafts 25 in the longitudinal direction. 26 and the base ends of the second lever 27 are fixed. These levers 26, 27
is curved around the intersection 0 of the axes _L1 and _L2 , and the levers 26, 2
The tip of the center stake 14 is fitted into the slits 28 and 29 of No. 7. The center stake 14 is rotatably supported by the second rotation frame 6 by a ball bearing at the intersection 0 of the axes L ₁ and L ₂ and is connected to the handle 10 via a universal joint 15 . Therefore, when the center stake 14 is rotated around the intersection point 0 by operating the handle 10, the tip of the center stake 14 causes one or both of the levers 26 and 27 to move toward the detection shaft 25. The first and second rotation detectors 21 and 22 output electric signals corresponding to the rotation angle.

Further, a third rotation detector 23 is fixed to the side 3a of the fixed frame 3 for detecting rotation of the first rotary frame 4 around the axis _L1 by the operation section 1. Rotating shaft 5 that rotatably supports the first rotating frame 4
a itself corresponds to the detection axis of this rotation detector 23, and therefore the rotation of the first rotation frame 4 is detected by the third rotation detector 23 via the rotation axis 5a. Furthermore, in order to detect rotation of the second rotation frame 6 around the axis _L2 by the operation unit 1,
A fourth rotation detector 24 whose detection axis is the rotation axis 7d is fixed to the side 4d of the first rotation frame 4. Therefore, the second rotating frame 6 inside the first rotating frame 4
rotation is detected by the fourth rotation detector 24.

The rotation of the first rotating frame 4 and the second rotating frame 6 in the detection unit 2 is provided by rotating the handle 10 and changing its attitude.

As is clear from the above, in the input device configured as described above, when the handle 10 in the operation section is rotated around the axes L ₁ and L ₂ in the detection section, the rotation is caused by the rotation of the handle 10 on the center stay 14.
is transmitted to the levers 26, 27, and the rotation detectors 21, 22 output electrical signals corresponding to the amount of rotation thereof. Further, when the handle 10 itself is rotated to change its posture, the rotation is transmitted to the first and second rotating frames 4 and 6 by the compound parallel link, and both rotating frames are aligned with the axes L ₁ and L ₂ . Since it rotates, electrical signals corresponding to the amount of rotation are output from the third and fourth rotation detectors 23 and 24. Of course, when a complex movement is given to the handle 10, corresponding complex outputs are obtained from the first to fourth rotation detectors 21, 22, 23, and 24.

Therefore, the input device described above can be used as an input device for an electronic computer or the like having four degrees of freedom, and in particular can be used as a control for changing the perspective direction in a perspective view of a solid object displayed on a graphic display. When used as an input device, it is possible to create a direct relationship between the operation of the handle and the change in the figure on the graphic display, and to input the large amount of data necessary for the change in the figure. , and also a fifth
The degree of freedom can be further increased by directly connecting the movement detector to an input means, for example, an operator movable in the axial direction of the center stake 14.

As described above, according to the input device of the present invention, at least four types of displacement of the handle in space can be converted into electrical signals and output either alone or in an appropriate combination, so that It is extremely effective as an input device, and its output can be obtained not only by simple operation of moving the handle, but also when used for 3D simulation on a graphic display, it is possible to obtain output by simply moving the handle. This is extremely useful because it can also create a relationship with the display.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention, and FIG. 2 is an enlarged longitudinal sectional view of the main part thereof. 3... Fixed frame, 4, 6... Rotating frame, 10... Handle, 11, 13, 15... Universal joint, 12... Connecting link, 21-24... Rotation detector.

Claims (1)

[Claims] 1. A first rotating frame disposed inside the fixed frame is rotatably supported, and a second rotating frame disposed inside the first rotating frame is perpendicular to the axis of rotation of the first rotating frame. The other ends of four connecting links supported rotatably around an axis and connected via universal joints to the four corners of the second rotating frame are respectively connected to the handle via universal joints, and the second The other end of the center stay, which is rotatably supported by the rotating frame by a ball bearing, is connected to the handle via a universal joint, and rotation detection is performed to detect the rotation of the first rotating frame and the second rotating frame by the above-mentioned connecting link. vessel,
and an input device for an electronic computer, etc., comprising a rotation detector for detecting rotation of the center stake.