JPH0732400Y2 - Space equipment protection cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is for protecting space equipment such as connectors and sensors provided outside the space station from atomic oxygen, radiation, cosmic dust, heat, etc. It relates to a protective cover for space equipment used for.

[Prior Art] Outside of the space station, various experimental equipment such as sensors and many space equipment such as a connector to be installed in the middle of an electric cable connecting these experimental equipment and the inside of the space station are attached. ing.

[Problems to be solved by the invention] When a space device attached to the outside of a space station is exposed to the space environment for a long period of time, it deteriorates due to the effects of atomic oxygen, radiation, cosmic dust, heat, etc. Or electricity flows and gives a false signal to other devices.

In order to reduce such influences that the space equipment receives from the space environment, the present invention covers the space equipment with a protective cover to protect it from the space environment.
It is an object of the present invention to provide a space device protective cover in which the protective cover can be easily opened by a robot mounted outside the space station.

[Means for Solving the Problems] A space device protective cover of the present invention is a space device mounted outside a space station, and a cover support rod displaceably arranged outside the space device. The cover support rod is pivotally mounted and closed when the cover support rod is in one displacement position to cover the space equipment, and opened when the cover support rod is in the other displacement position to expose the space equipment. A first structure in which a protective cover, a pressing operation rod that is coupled to the cover supporting rod and is displaced together with the cover supporting rod, and cam surfaces that respectively define one displacement position and the other displacement position of the pressing operation rod are alternately provided. A cam, and a positioning member projecting from the pressing rod and capable of contacting the cam surface,
A spring for urging the pressing operation rod in a direction in which the positioning member abuts on the cam surface; and a positioning member for pressing the positioning operation member on one side of the first cam when the pressing operation rod is pressed against the spring. And a second cam for changing the contact position between the cam surface defining the displacement position and the other cam surface defining the displacement position.

[Operation] When the pushing operation rod is pushed by the robot arm attached to the outside of the space station, the cover support rod is displaced and the protective cover is opened or closed.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3, 1 is a space device,
It is attached to the outside of a space station (not shown), and a ring-shaped cover support rod 2 is displaceably arranged outside the upper part. Reference numeral 3 denotes a protective cover, which in the illustrated embodiment is a disc divided into a plurality of pieces in the radial direction from the center, and is pivotally attached to the cover support rod 2 via a boss 4 integrally provided on the outer periphery. The center side of the protective cover 3 can be opened and closed vertically. A cylindrical case 6 is fixed to the outer side of the space equipment 1 via a rib 5, and a pushing operation rod 7 can be vertically moved into the case 6 and inserted so as to be rotatable about an axis. There is. A connecting link 8 having one end fixed to the cover supporting rod 2 is provided between the cover supporting rod 2 and the pressing operation rod 7.

As shown in FIG. 1, at the end of the coupling link 8 on the side of the pushing operation rod 7, the pushing operation rod 7 rotatably penetrates the boss 9 provided on the coupling link 8, and the upper and lower surfaces of the boss 9 are The stoppers 10 and 11 that are integrally attached to the pressing lever 7 are in contact with and. Inside the case 6, a first cam 12 and a second cam 13 that surround the pressing operation rod 7 are fixedly attached, and their respective cam surfaces face each other. The pressing rod 7 has a first cam 12 and a second cam.
Pin-shaped positioning member 14 positioned between 13 and 14
Is projected horizontally. The pressing rod 7 is urged upward by the spring 15 so that the positioning member 14 contacts the cam surface of the first cam 12, and the cam surface of the first cam 12 vertically moves the pressing rod 7. Is set. The pushing operation rod 7 is adapted to be pushed downward by the robot arm 16 shown in FIG. 3, and when the pushing operation rod 7 is pushed downward by the robot arm 16, the pushing operation rod 7 is shown in FIG. The positioning member 14 separates from the first cam 12 and comes into contact with the cam surface of the second cam 13 by being lowered against the force of the spring 15 shown in FIG.

As shown in FIG. 4, the deep groove 17 is formed on the cam surface of the first cam 12.
And shallow grooves 18 are alternately provided, and between the deep groove 17 and the shallow groove 81, an inclined surface 19 that is higher from the deep groove 17 side toward the shallow groove 18 side, and from the shallow groove 18 side. The inclined surfaces 20 that are higher toward the deep groove 17 side are provided alternately. Second cam
On the cam surface of 13, a vertical surface 21 located below the middle of the inclined surface 19 of the first cam 12 and a vertical surface 22 located below the middle of the inclined surface 20 are alternately provided. Between 21,22, an inclined surface 23 that decreases from the upper end of the vertical surface 21 toward the lower end of the vertical surface 22, and an inclination that decreases from the upper end of the vertical surface 22 toward the lower end of the vertical surface 21. Surfaces 24 and 24 are provided alternately.

FIG. 6 shows a state in which the positioning member 14 is in a deep groove 17 provided on the cam surface of the first cam 12, and at this time, the pushing operation rod 7 is biased by the spring 15 shown in FIG. To the ascending displacement position. When the pressing rod 7 is in the upward displacement position, the stopper 11 pushes the boss 9 upwards and the connecting link 8
At the same time, the cover support rod 2 is raised. When the cover support rod 2 rises, the boss 4 also rises, the protective cover 3 closes, and the space device 1 is covered.

When opening the closed protective cover 3 to bring the spacecraft 1 into use, the robot arm 16 (see FIG. 3) pushes the pushing rod 7 downward to resist the force of the spring 15. Lower it. As a result, the positioning member 14 in the state shown in FIG. 6 slips out from the deep groove 17 and comes into contact with the inclined surface 24 provided on the cam surface of the second cam 13 as shown in FIG. It descends along the inclined surface 24 and comes into contact with the vertical surface 21 as shown in FIG. 8, and the descending of the pressing rod 7 is stopped. When the positioning member 14 descends along the inclined surface 24, the pressing lever 7 rotates slightly. 8th
After the state shown in the figure is reached, the robot arm 16 is pushed to the operating rod 7.
When released, the pressing rod 7 is urged by the spring 15 and rises, and the positioning member 14 also rises from the state of FIG. 8 and is provided on the cam surface of the first cam 12 as shown in FIG. After contacting a certain inclined surface 19, it rises along the inclined surface 19 and enters the shallow groove 18 as shown in FIG. When the positioning member 14 moves up along the inclined surface 19, the pressing lever 7 is slightly rotated. When the positioning member 14 is in the shallow groove 18 of the first cam 12 as shown in FIG. 10, the pressing rod 7 is lower than the upward displacement position of FIG. 1 and the downward displacement of FIG. It will keep the position. When the pushing operation rod 7 is at the lowered displacement position in FIG. 5, the stopper 10 pushes the boss 9 downward to lower the cover support rod 2 together with the coupling link 8. When the cover support rod 2 descends, the boss 4 also descends, and the portion of the protective cover 3 close to the boss 4 abuts against the corner portion 25 of the space device 1 and is relatively pushed, so that the protective cover 3 is covered. The space equipment 1 is exposed and can be used by rotating upward about the center of the space.

When the use of the space equipment 1 is stopped and the protective cover 3 is closed again to protect the space equipment 1 from the space environment, the pushing operation rod 7 in the state shown in FIGS. It is pressed by and is lowered against the force of the spring 15. As a result, the positioning member in the position shown in Fig. 10
The reference numeral 14 extends downward from the shallow groove 18 and comes into contact with the inclined surface 23 of the second cam 13 as shown in FIG. 11, and then descends along the inclined surface 23 so that the vertical surface as shown in FIG. 22 is abutted, and the lowering of the pressing lever 7 is stopped. After the state shown in FIG. 12 is reached, when the robot arm 16 is spoken from the pushing rod 7, the pushing rod 7 is urged by the spring 15 and rises, and the positioning member 14 also rises from the state shown in FIG. After contacting the inclined surface 20 of the first cam 12 as shown in FIG. 13, it rises along the inclined surface 20 and enters the deep groove 17, and the pressing operation rod 7 is brought into the state shown in FIG. After returning to the ascending displacement position, the protective cover 3 is closed and the space equipment 1 is covered.

As described above, when the pressing operation rod 7 is pressed when the protective cover 3 is closed, the protective cover 3 is opened, and when the pressing operation rod 7 is pressed when the protective cover 3 is open, the protective cover 3 is closed and the pressing operation is performed. The protective cover 3 can be opened and closed only by pressing the rod 7.

The protective cover 3 shown in the drawing is a disc divided in the radial direction from the center, but is not divided as the protective cover 1.
A circular plate may be used, and depending on the shape of the space device 1, a rectangular plate or the like may be used.

[Advantage of the Invention] The present invention can protect the space environment when the space equipment is not used by opening and closing the protective cover only by pressing the pushing operation rod. The opening and closing of the protective cover can be easily operated by a robot arm or the like.

[Brief description of drawings]

FIG. 1 is a vertical side view of an embodiment of the present invention, and FIG.
FIG. 4 is a plan view, FIG. 3 is a perspective view showing a state in which the protective cover is closed, and FIG. 4 is a development view of the first cam and the second cam, and FIG.
The drawing is a vertical sectional side view showing a state different from that of FIG. 1, and FIGS. 6 to 13 are operation explanatory views of the positioning member. In the figure, 1 is a space device, 2 is a cover support rod, 3 is a protective cover, 7 is a pushing operation rod, 12 is a first cam, 13 is a second cam, 14 is a positioning member, and 15 is a spring. .

Claims (1)

[Scope of utility model registration request] 1. A space device attached to the outside of a space station, a cover support rod displaceably arranged outside the space device, and a cover support rod pivotally attached to the cover support rod. A protective cover that is closed to cover the space equipment when in the displacement position and open when the cover support rod is in the other displacement position to expose the space equipment.
A pressing operation rod coupled to the cover support rod and displaced together with the cover support rod, and first cams provided with alternating cam surfaces defining one displacement position and the other displacement position of the pressing operation rod, respectively. A positioning member protruding from the pressing operation rod and capable of contacting the cam surface, a spring for urging the pressing operation rod in a direction in which the positioning member contacts the cam surface, and the pressing operation rod having the spring. A second cam for changing the contact position of the positioning member between a cam surface defining one displacement position of the first cam and a cam surface defining the other displacement position of the first cam when pressed against And a protective cover for space equipment.