JPS5836800A - Driving device for swinging nose fair ring - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device for craniotomy of a nose fairing in a rocket.

Generally, in a two-piece nose fairing, the two nose segments are connected to each other using a coupling device such as a gunpowder-type separation nut, and when a predetermined altitude is reached, the nose fairing is detonated to separate the two nose segments. The segments are separated by uncoupling them.

In Figure 1.2, % (1) is the case of the front stage rocket, and this case (1) has a joint part (2) at its end. (3) is a nose fairing having a joint part (4) at the end, and this nose fairing (3) has two nose segments, one nose segment (5) and the other nose segment (6). Consisting of Each nose segment (5) (6) has a semi-conical head (7) and a semi-cylindrical body (8).

These nose segments (5H6) are connected to each other by their dividing surfaces (9)Q using the aforementioned separation nuts or the like.
When the two joints are in contact with each other, the band (+11) that connects both joints (2) and (4) to the case (1) of the front stage rocket is half connected. It is divided into two parts at each circumference, and both ends are connected to each other by a separation nut (lla) or the like. 0z is a head turning drive device, and this head closing r* device (12+ is a conventional one, as shown in detail in Fig. 3, is a bracket 0 attached to the inner surface of one nose segment (5).
3) involves Bin Q41.

The spring receiver (151 has a cylindrical portion (161) that protrudes toward the other nose segment (6). αη has one end locked to the spring receiver (151). This compression spring (17) is arranged around the cylindrical part (16).The bracket (18) added to the inner surface of the other nose segment (6) The spring receiver (a) is connected via 09,
The other end of the compression spring OD is in contact with the spring receiver (2). Note that the compression spring Q71 is
The outline is disclosed in FIG. 2 of Japanese Patent Publication No. 53-13879.

However, the conventional turning drive device (1
In No. 21, when the nose segments L-(5) and (6) are connected to each other by a separation nut or the like, the elastic force of the compression spring On always closes the nose segments (5) and (6). It is energizing. Then, this urging force drives the nose segments (5) and (6) with a large force so that the head can be closed quickly at the same time that the binding force between the nose segments (5) and (6) due to the separation nut etc. is eliminated. It is quite large because it has to be done. As a result, the nose segment (5) and (6) must be made highly rigid to withstand this large biasing force, which poses the problem of increasing the weight of the rocket. Ta.

This invention was made by focusing on the above-mentioned problem, and includes a retainer attached to one nose segment, a retainer attached to the other nose segment, and a spring compressed between these retainers. and a device for driving the nose fairing to close by the repulsive force of the spring after the coupling force of the coupling device coupling both nose segments is released, wherein a bushing rod is attached to a retainer attached to one nose segment. The other retainer is connected through a locking mechanism that is released upon movement, and the coupling force of the coupling device is applied to the bushing rod.

It is an object of the present invention to solve the above-mentioned problem by energizing both nose segments with a force sufficient to separate them from each other and engaging the other nose segment immediately after the nose segments are released.

The present invention will be explained below based on the drawings. .

FIG. 4 is a diagram showing an embodiment of the present invention.

First, the configuration will be explained, and the same parts as the conventional one will be given the same reference numerals and detailed explanation will be omitted. In FIG. 4, a bracket (7) is attached to the inner surface of one nose segment (5), and a bottle (31) is attached to this bracket (30).
A spring receiver (321) serving as a retainer is connected through the spring receiver (321).The spring receiver (321) has a seven-flange shaped receiver on its outer edge, and a spring receiver (321) has a seven-flange shaped receiver on its outer edge, and a spring receiver (321) has a seven-flange shaped receiver on its outer edge, and a spring receiver (321) has a flange in the center thereof facing the other nose segment (6). The cylindrical part (341
has. A plurality of through holes (351) are formed at the tip of the cylindrical portion (34) at equal angles from each other. One end of a substantially cylindrical sleeve is slidably fitted into the cylindrical portion (9). ,
Three substantially ring-shaped retainers r serving as retainers are screwed and fixed to the outer periphery of the other end of the sleeve 06). A ball 0 is housed in the sleeve (a conical recess 138 is formed at a position facing the through hole c351 on the inner periphery of one end of the blade) and the through hole 6.

The center of the ball is located radially inward from the inner surface of the sleeve (36). As a result, the ball (39) connects the sleeve to the spring receiver C33.

The aforementioned sleeve (sword, recess) and through hole G9J pole C31 as a whole constitute a locking mechanism that connects the spring receiver (321) and the receiver (371). (42)
One end engages with the receiver and the other end engages with the receiver (371), which is a main spring serving as a spring for driving rotation, and this main spring (421 is a nose segment as described later) (5) (6) The spring constant is set to sufficiently close the heads of each other, and the springs are arranged in a compressed state.
The receiver (371) is always biased toward the other nose segment (6) by the locking mechanism (4α
Spring catch t3? While connected to I, this biasing force acts as a shear force on the ball (39) and is not transmitted to the other nose segment (6) (43
is a bushing rod, and this bushing rod (43 is slidably inserted into the cylindrical part (3, il) and the sleeve (361). A stepped hole (44) is formed along the axis in the bushing rod (131). , this stepped hole (
44) has one end with a nut (spring holder (
A guide rod (46) supported by 3Z is inserted. A flange (41) is completely formed on the other end of the guide rod (46), and this 7 flange (471) is connected to the surface (48) of the stepped hole (441).
), the bushing rod (431) is restricted from moving and is prevented from being removed. One end of the bushing rod (43 has a large diameter part (491), a small diameter part (501), When the connecting inclined portion (511, nose segment) (5) and (6) are connected, the ball (39) contacts the large diameter portion (49) and the movement of the three balls (3) is restricted. At the other end of the bushing rod (43), a receiver that abuts the tip end surface of the sleeve (T) is screwed and fixed. The tips of the attached hooks 54) are engaged.

Between the flange 59 formed on the bushing rod (431) and the tip end surface of the cylindrical portion, there is a main spring (having a spring constant smaller than that of the main spring 421, but with sufficient urging force to separate the nose segments (5) (61) from each other. A secondary spring 66) is provided in a compressed state, and this secondary spring 66) always biases the bushing rod in the direction of the other nose segment (6).The weak biasing force of this secondary spring (66) (51 (6) acts as a shearing force on the separation nut that connects them together.

Next, the effect will be explained.

When the nose segments (5) and (6) are connected to each other by a connecting device such as a separation nut, the spring retainer f32) and the retainer (3) are connected as shown in FIG.
71 are connected by ball C39),
The elastic force of the main spring (421) is restrained by these and does not act on the outside.On the other hand, the elastic force of the sub spring (56) acts directly on the nose segment) (51 (61), but this force is Since the elastic force of the nose segment (5) and (6) is much smaller than the elastic force of

Next, when dividing the nose fairing (3),
Destroy the separation nut etc. and connect the connecting band (11).
) and release the bonding force between the nose segments <5) (61. Immediately after this, the secondary spring (5)
6), the bushing rod (
431 protrudes and the nose fairing (3) begins to close. When the bushing rod (431) protrudes a predetermined distance and the small diameter portion (50) and the ball (3!l) come to face each other, the movement restriction on the ball 09 is released.For this reason, the elastic force of the main spring (4'71) Ball (by
30 is pushed by the recess (G) and moves radially inward, and the connection between the spring receiver (321 and the receiver (171) is released. As a result, the main spring (receiver G'i by 4Z) is moved radially inward. It moves in the direction of the segment (6), and the bridge that is moving earlier catches up with the shell (52).As a result, the closing force of the nose fairing (3) is increased by the elastic force of the secondary spring (g) and the main spring (421). (repulsion force) is the sum of
The head is quickly closed. When the nose 7 air ring (3) is turned by a predetermined amount, the hook 541 is removed from the recess 53). In addition, the bushing rod (431) protrudes at the handle where the surface (48) contacts the flange (471) and is prevented from being removed, and the receiver (371) is prevented from being removed by contacting the receiver (521), and the hooks other than the hook 5a are It remains in the nose fairing (5).

As explained above, according to the present invention, a taker attached to one nose segment, a taker attached to the other nose segment, and a spring compressed between these retainers are provided to connect both nose segments. In the device for driving the nose fairing to close by the repulsive force of the spring after the coupling force of the coupling device is released, the retainer attached to one nose segment is provided with a locking mechanism that is released by the movement of a push rod. Immediately after the coupling force of the coupling device is released, the bushing rod is energized with a force sufficient to separate both nose segments from each other and engaged with the other nose segment. When the segments are connected to each other, the strong biasing force of the spring does not act on the nose segments.

As a result, the rigidity of the nose segment can be set lower than before, and the weight of the nose segment can be reduced accordingly.

In this embodiment, the nose fairing is made using the front stage rocket case (1) as a fulcrum and the craniotomy is performed as shown in Fig. 2. It may also be used for a parallel-swivel type nose fairing in which the head is opened in parallel.

[Brief explanation of drawings]

Fig. 1 is a side view of the nose fairing when the head is closed, Fig. 2 is a side view when the head is closed, Fig. 3 is a sectional view of a conventional nose fairing turning drive device, and Fig. 4 is the invention. FIG. 2 is a cross-sectional view showing an embodiment of a turning drive device for a nose fairing according to the present invention. (3)...Nose fairing (5) (6)...Nose segment C331C37)...Retainer (4G...Lock mechanism (4z...Spring (43...Butschrod patent applicant Nissan Motors) Agent Co., Ltd. Patent Attorney - Department Figure 1 Figure 2

Claims (1)

[Claims] It is equipped with an additional retainer attached to one nose segment, an IJ retainer attached to the other nose segment, and a spring compressed between these retainers, and the coupling force of the coupling device coupling both nose segments is released. After that, in the device for driving the craniotomy of the nose fairing by the repulsive force of the spring, the other retainer is connected to the retainer attached to one nose segment via a locking mechanism that is released by movement of the bushing rod, and A drive device for craniotomy of a nose fairing, characterized in that immediately after the coupling force of the coupling device is released, a bushing rod is energized with a force sufficient to separate both nose segments from each other and engages the other nose segment. .