JP2507351Y2 - Holding and releasing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is for fixing the deployable solar cell paddle mounted on an artificial satellite to the satellite body in the stored state and releasing the fixed state in orbit. The present invention relates to a holding / releasing device.

[Prior Art] Figs. 5 (a), 5 (b), 6 and 7 (a)
(B) shows an example of a conventional holding and releasing device (1)
Is a satellite body, (2) is a solar array paddle, (3) is a bracket, (4) is a bolt for fixing the bracket (3) to the satellite body (1), and (5) is the bracket (3). A slide shaft that slides in the inside, (6) a coil spring incorporated in the slide shaft (5), (7) a clamp rod, (8) a block,
(9) is a leaf spring fixed to the clamp rod (7) and the block (8), (11) is a hook, (12) is a pin fixed to the bracket (3), (13) is the pin (12 ), Spacer (14) is nut, (1
5) is a bolt incorporated in the hook (11), (16) is a wire passing through a hole formed in the bolt (15), (17)
Is a nut, (18) is a bush installed at the end of the solar cell paddle (2), and (19) is a wire cutting mechanism (details are omitted).

The conventional holding / releasing device is configured as described above, and the solar cell paddle (2) in the housed state is pressed by the leaf spring (9) onto the bracket (3) via the bush (18), and at this time, the clamp rod (7). By inserting the wire (16) into the hole h provided in the slide shaft (5) and pulling the wire (16) in the direction of the arrow A, the slide shaft (11) is rotatable around the pin (12). 5) Arrow B
The clamp rod (7) is fixed by pushing in the direction of to fix the solar cell paddle (2) to the artificial satellite body (1).

The wire (16), which is tensioned in the direction of arrow A, is drawn around the artificial satellite body (1) to form the wire cutting mechanism (19).
Fixed in. When the wire cutting mechanism (19) is operated on the track to release the tension of the wire (16) after launching in the above state, the hook (11) rotates in the direction of arrow C and at the same time the slide shaft (5) moves in the direction of arrow D. You can slide in the direction of. Then, the clamp rod (7) becomes free from the recess h of the slide shaft (5) and is wound up in the direction of the arrow E by the force of the leaf spring (9) to release the fixing of the solar cell paddle (2) and the deployable state. Becomes

[Problems to be solved by the device]

In the conventional holding and releasing device as described above, since the slide shaft (5) slides in the bracket (3), the shaft (5) and the bracket (3) are engaged with each other in consideration of high vacuum, thermal expansion or thermal contraction. The material must be selected so that it will not be released, and the solar paddle after launch may not be released unless the slide surface of the slide shaft (5) is manufactured with great care. There was a problem of coming.

This invention was made in order to solve such a problem.By changing the method of holding and releasing the solar cell paddle from the conventional slide method to the rotation method, the success rate of the solar cell paddle after launch is several stages higher than before. (reliability)
The purpose is to improve. Of course, the workability is good when the solar cell paddle is held, which is the conventional advantage, and the wire tension can be easily measured, and it is possible to prevent the wire from swinging and coming into contact with the solar cell paddle due to vibration at launch. I try not to spoil it.

[Means for solving the problem]

In the holding / releasing device according to the present invention, the slide shaft incorporated in the bracket for holding the solar cell paddle is changed from the slide type to the rotary type without changing the conventional configuration.

[Action]

In this invention, since the method of storing and releasing the solar cell paddles is the rotation method, the solar cell paddles can be stored and released more easily than before, and the components therefor can be easily manufactured.

〔Example〕

1 (a) and 1 (b) are views showing an embodiment of the present invention, FIG. 1 (a) is a plan view showing a stored state of a solar cell paddle, and FIG. 1 (b) is a developed (released) state. A plan view showing the state,
FIG. 2 is a front view showing the storage state of the solar cell paddle, and FIG.
FIG. 4 is a front view showing the whole of the present invention, and FIG. 4 is a state view in which a solar cell paddle is attached to an artificial satellite body using the holding and releasing device of the present invention.

In the figure, (1) to (4), (7) to (9), (11)
~ (19) is the same as the above conventional device, except that the hook (11), the pin (12), the spacer (13), the nut (14), (17), the bolt (15) and the wire (16). ) Is placed on the outside of the solar array paddle (2) in the housed state as shown in FIGS. 1 (a) and 2 and a hook-shaped hook (11) is provided under the solar array paddle (2). A rotary type that serves as a substitute for the slide type slide shaft (5) that is conventionally used for the bracket (3) that is box-shaped and is open only on one side by bolts (4). The clamp rod (7) is fixed by pushing the holder (10). A spring (20) having one end fixed to the bracket (3) is incorporated in the holder (10) so that the force for rotating the holder (10) to the hook (11) side is exerted. I am doing it. Also, the holder (1
0) itself is also incorporated in the bracket (3) by the pin (21).

 Next, I will explain the operation of this device.

First, install the solar cell paddle (2) in the stored state into the leaf spring (9).
By pushing it onto the bracket (3) through the bush (18), at this time, the clamp rod (7) is fitted into the recess h provided in the holder (10), and the wire (16) is pulled in the direction of arrow A. Thus, the solar cell paddle (2) is fixed to the artificial satellite body (1) by pressing the holder (10) in the direction of arrow B through the hook (11) rotatable around the pin (12). In the holder (10),
A spring (20) with one end fixed to the bracket (3) is incorporated, and the holder (10) is hooked (11).
The force that always tries to rotate to the side works. The holder (10) itself is also incorporated in the bracket (3) by the pin (21).

The wire (16), which is tensioned in the direction of arrow A, is drawn around the artificial satellite body (1) to form the wire cutting mechanism (19).
Fixed in. After launching in the above state, when the wire cutting mechanism (19) is operated on the orbit to release the tension of the wire (16), the hook (11) rotates in the direction of the arrow C and at the same time, the hook (11) causes the bracket (3) to move. The holder (10) pushed into the holder (10) is released, and the spring (20) built into the holder (10) allows the holder (10) to be released.
Rotates in the direction of the hook (11), that is, in the direction of arrow D until the holder (10) contacts the bottom surface of the bracket (3).

Then, the clamp rod (7) becomes free from the recess h of the holder (10) and is wound up in the direction of arrow E without the force of the leaf spring (9), so that the solar cell paddle (2)
The fixation of is released, and it becomes a deployable state.

[Effect of device]

As described above, the present invention has a structure in which the hook and wire are arranged outside the solar cell paddle in the stored state without changing the conventional basic structure, and the holder that is to be rotated by the hook is pressed down to make the solar cell paddle. The workability is not only good when it is held, but also the tension of the wire can be easily measured, and it is possible to prevent the cable from swaying and coming into contact with the solar array paddle due to the vibration during launch. When releasing the solar cell, the success rate (reliability) of releasing the solar cell paddle can be improved by changing the method of rotating the holder from the conventional method of sliding the slide shaft.

[Brief description of drawings]

1 (a) and 1 (b) are plan views showing an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is an overall front view showing an embodiment of the present invention, FIG. Fig. 5 (a) is a diagram showing a state of attachment to the artificial satellite body of one embodiment of the present invention.
(B) is a front view and a plan view of a conventional holding and releasing device,
FIG. 6 is an overall view of a conventional holding and releasing device, FIG. 7 (a)
(B) is a conceptual diagram which shows the holding | maintenance state and the releasing state of the conventional holding | maintenance releasing device, respectively. In the figure, (1) is a satellite body, (2) is a solar array paddle, (3) is a bracket, (4) is a bolt, (5) is a slide shaft, (6) is a coil spring, (7) is a clamp rod, ( 8) is a block, (9) is a leaf spring, (1
(0) is a holder, (11) is a hook, (12) is a pin, (1
3) is a spacer, (14) is a nut, (15) is a bolt, (1
6) is a wire, (17) is a nut, (18) is a bush, (1)
9) is a wire cutting mechanism, (20) is a spring, and (21) is a pin. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kamagahara Manabu 730 Kamimachiya, Kamakura City, Kanagawa Mitsubishi Electric Engineering Co., Ltd., Kamakura Plant (56) References: Mitsuihei 2-141599

Claims (1)

(57) [Scope of utility model registration request] 1. A holding / releasing device for a deployment type solar cell paddle mounted on an artificial satellite, the bracket having an opening fixed to the solar cell paddle holding position of the artificial satellite body, and the opening of the bracket. A holder having a concave portion that is incorporated into and is rotatably supported by a pin, a clamp rod that can freely move in and out of the concave portion of the holder, and the clamp rod and the peripheral edge portion of the outermost panel of the solar cell paddle that is in a housed state. 2 leaf springs, which are fixed at both ends with a block and are shaped to draw an arc in a free state, and fixed to the bracket outside the solar cell paddle envelope area and rotatably supported by pins. It is fixed to the hook and the tension is applied to the hook so that the hook is rotated to bring the hook into contact with the holder. A wire for rotating the holder so that the clamp rod is held between the recess of the holder and the inner wall of the opening of the bracket as the hook rotates is provided on the bracket. A spring for constantly applying a turning force to the holder in a direction opposite to the rotation direction of the holder by the wire and the hook so that the recess of the holder faces the opening direction of the bracket opening; A holding / releasing device comprising a wire cutting mechanism.