JPH0724320Y2 - Hold release mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a holding / releasing mechanism incorporated in a drive mechanism for mounting an artificial satellite.

[Conventional technology]

FIG. 4 is a plan view showing a conventional holding / releasing mechanism, FIG. 5 is a front sectional view showing the conventional holding / releasing mechanism, and FIG. 6 is a side sectional view showing the conventional holding / releasing mechanism.

In the figure, (1) is a fixed part of a drive mechanism for mounting an artificial satellite, (2) is a movable part, and (3) is a plurality of fixed parts on the surface facing the movable part (2) at predetermined intervals. It is a first support provided individually, and the first support (3) is formed by a pair of leaf springs. (4) is a second support provided on the movable part (2) so as to be located between the pair of leaf springs, and has a pair of tapered pin holes P, and (5) is the pair of leaf springs. A pair of locking pins, (6), which are provided at the open ends of the fixing members so as to face each other and fit into the pin holes P, are provided at positions corresponding to the first supports (3) of the fixing portion (1). As shown in FIG. 4, the pusher is arranged so as to face each other on the diagonal of the fixed portion (1) and is movable on the diagonal. Further, the pusher (6) has a substantially V-shaped claw portion A for sandwiching the pair of lock pins (5) provided at the open ends of the pair of leaf springs of the corresponding first support (3) from the outside. ing. (7) is a pulley rotatably attached to the pusher (6),
(8) is a cable that is stretched between the pulleys (7) and presses the pressing tool (6) through the pulleys (7), (9) is a pyrotechnic that cuts the cable (8), (Ten)
Is a holder attached to the fixed part (1), and (11) is a first shaft which is supported by the holder (10) so as to be parallel to the movable direction of the pusher (6). It is provided to guide 6) in the movable direction. (1
2) is a first spring provided on the first shaft (11), which gives a force to pull out the pusher (6) in the releasing direction, and (13) rotates the pulley (7) to the pusher (6). A second shaft for movably mounting, (14) a second spring for absorbing thermal displacement provided in the middle of the cable,
Reference numeral (15) is a bag for adjusting the tension of the cable (8).

The conventional holding / releasing mechanism is configured as described above, and includes the bag (15) and the second spring (14) for absorbing thermal displacement.
When tension is applied to the cable (8) by the cable (8), the cable (8) presses the pressing tool (6) through the pulley (7), and the pressing tool (6) moves in the corresponding first support (3) direction. Moves along the first shaft (11).
Along with the movement of the pusher (6), the claw portion A of the pusher (6) clamps the pair of lock pins (5) on the V-shaped inner surface, and the lock pins (5) are attached to the pins of the second support (4). The hole P is engaged. As a result, the movable part (2) is held with respect to the fixed part (1).

The first spring (12) is compressed by the movement of the pusher (6), and the compressed state is maintained when the lock pin (5) and the pin hole P are engaged.

Next, when the cable (8) is cut using the pyrotechnic (9), the pressing force of the pressing tool (6) is lost, and the releasing force of the first spring (12) causes the pressing tool (6) to move to the lock pin. Move away from (5). Then, the lock pin (5) is the second
The movable part (2) is released from the support (4) so that the movable part (2) can move freely.

[Problems to be solved by the device]

In the conventional holding and releasing mechanism as described above, when the cable (8) is cut using the pyrotechnic (9) after launching the satellite, the holding and releasing mechanism parts such as the cable (8) move the movable part (2). There was a problem that the movable part could not move freely due to the contact with. The present invention has been made to solve the above problems, and an object thereof is to obtain a holding / releasing mechanism that prevents the cut cable from coming into contact with the movable portion.

[Means for Solving the Problems]

The holding / releasing mechanism according to the present invention is provided with a cable stopper so that the holding / releasing mechanism component such as a cable after being cut does not come into contact with the movable portion in the released state.

[Action]

In this invention, after the cable is cut, the ball provided for the cable is held by hitting the stopper of the cable provided in the fixed portion, and the holding / releasing mechanism component such as the cut cable does not contact the movable portion.

〔Example〕

FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 3 is a plan view of an embodiment of the present invention in a released state, and FIG. 3 is a front view of the embodiment of the present invention in an opened state.

In the figure, (1) to (9) and (14) to (16) are the same as the conventional ones. (17) is a ball provided in the cable, and (18) is a stopper for the cable provided in the fixed portion (1).

Next, the operation of this invention will be described with reference to FIGS. 1, 2, and 3.

In the holding / releasing mechanism configured as described above, when tension is applied to the cable (8) by the bag (15) and the second spring (14) for absorbing thermal displacement, the cable (8)
Presses the pusher (6) via the pulley (7), the pusher (6) is movable along the first shaft (11) in the corresponding first support (3) direction.
As the pusher (6) moves, the pair of lock pins (5) are clamped by the claw portions A of the pusher (6), and the lock pins (5) are engaged with the pin holes P of the second support (4). . As a result, the movable part (2) is held with respect to the fixed part (1).

Next, when the cable (8) is cut using the pyrotechnic (9), the pressing force of the pressing tool (6) is lost, and the releasing force of the first spring (12) causes the pressing tool (6) to lock the pin. Move away from (5). Then, the lock pin (5) is the second
The movable part (2) is released from the support (4) so that the movable part (2) can move freely.

After the cable (8) is cut, the ball (17) provided in the cable (8) hits the cable stopper (18) provided in the fixing portion (1) as shown in FIGS. 2 and 3. The cable (8) and the like are retained. In this state, a small tension is applied to the cable (8) by the first spring (12) through the pusher (6), so that the holding / releasing mechanism component such as the cut cable (8) can move to the movable part (2). ), And the movable part (2) can move freely.

In the above embodiment, the pyrotechnic product was used as an example of the cable cutting means, but the present invention is not limited to this.

Further, in the above embodiment, the lock pin (5) is provided in the first support (3) and the pin hole P is provided in the second support (4). However, the lock pin (5) is provided in the second support (4). It goes without saying that the support (4) and the pin hole P may be provided in the first support (3).

[Effect of device]

According to the holding / releasing mechanism according to the present invention, after the cable is cut, the ball provided to the cable is held against the stopper of the cable provided in the fixed portion, and the holding / releasing mechanism part of the cable after cutting is moved to the movable portion. The effect is that the movable part can move freely without contact with the.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a plan view showing an embodiment of the present invention in a released state, and FIG. 3 is a front view showing an embodiment of the present invention in an released state. FIG. 4 is a plan view showing a conventional embodiment, FIG. 5 is a front sectional view showing a conventional holding / releasing mechanism, and FIG. 6 is a side sectional view showing the conventional holding / releasing mechanism. In the figure, (1) is a fixed part of the drive mechanism for mounting the artificial satellite, (2) is the same movable part, (3) is the first support,
(4) is the second support, (5) is the lock pin, (6)
Is a pusher, (7) is a pulley, (8) is a cable, (9)
Is pyrotechnics, (10) is a holder, (11) is the first shaft,
(12) is the first spring, (13) is the second shaft,
(14) is the second spring, (15) is the buckle, (16)
Is a fixture, (17) is a ball, and (18) is a stopper. In the drawings, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shojiro Miyake 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (72) Eiichi Michioka 325 Kamimachiya, Kamakura-shi, Kanagawa Mitsubishi Electric Machinery Co., Ltd. Kamakura Factory (72) Inventor Hisayuki Yasu 325 Kamimachiya, Kamakura City, Kanagawa Prefecture Mitsubishi Electric Co., Ltd. In-house

Claims (1)

[Scope of utility model registration request] 1. A device for holding and releasing a movable part with respect to a fixed part of a drive mechanism for mounting an artificial satellite, wherein a plurality of fixed ends are provided at a predetermined interval on a surface of the fixed part facing the movable part. A first support formed of a pair of leaf springs having a lock pin or a pin hole in the first and a pair of lock pins or pin holes provided on the movable portion so as to be located between the pair of leaf springs, respectively. A second support having a pair of engaging pin holes or lock pins, and a movable portion in a position corresponding to the first support of the fixing portion, in the direction of the corresponding first support and in the opposite direction. And a pusher having a substantially V-shaped claw for sandwiching the open ends of the pair of leaf springs from the outside, and a spring for biasing the pusher in a direction opposite to the direction of the first support. And a pulley that is rotatably provided on the pusher, and a cable that is stretched between the pulleys and that maintains the engagement between the pair of lock pins and the pair of pin holes by the pusher. In a holding and releasing mechanism including a bag for adjusting the tension of the cable between the pulleys, a spring for absorbing thermal displacement provided in the middle of the cable, and a means for cutting the cable, Provide a stopper ball,
A holding / releasing mechanism having a cable stopper at a fixed portion.