JPH08142998A - Position regulating device - Google Patents

Abstract

PURPOSE: To simplify the constitution, to miniaturize the structure, and to realize the reliable and sure action control by providing a locking means where a frame structure is developed from the folded position to the developing position, and the folded member is locked in an approximately straight manner in the condition the folded member is turned from the first position to the second position around the axis of turning. CONSTITUTION: A locking claw 16 is turnably provided on a first member 10a, and a spring member 17 is locked to this locking claw 16 so as to give the spring force counterclockwise. A part 20 to be locked is provided on a second member 10b corresponding to the locking claw 16 of the first member 10a. A position regulating device connects each end part of the folded member 10 to each other across the axis 11 of turning of the folded member 10 through a wire member 15 and a tension spring member 14, and the energizing force of the tension spring member 14 is applied in an interlocking manner with the developing action at the folded position through the wire member in an interlocking manner with the developing action so that the energizing force of the tension spring member 14 may not be applied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position restricting device used for restricting the position of a frame structure used in, for example, a structure constituting a space station or an antenna device constructed in outer space at a deployed position.

[0002]

2. Description of the Related Art In the field of space development, the development of a space station concept is under way. In this space base concept, the skeleton of the space base and the frame structure used for the support structure of the antenna device, etc. are assembled on the ground in advance, then folded and accommodated and transported to outer space, A method of deployment has been considered and is being developed. As such a frame structure, for example, as shown in FIG. 3, the frame members 1 are combined in a cubic shape, and the respective contacts are rotatably connected via the supporting members 2 and 3, and the upper and lower surfaces thereof are relative to each other. Bending members 4 for position control that are bendable are installed between the contacts on the diagonals of the two facing planes and are rotatably connected to the support members 2, respectively. Then, between the contacts on the diagonals of the four planes around the frame member 1, a stretchable stretchable member 5 is installed and rotatably connected to the support member 2, respectively.

With the above structure, when the extension member 5 is extended, the frame member 1 is rotated about the support members 2 and 3 to be folded, and the folding member 4 is also folded and folded. Be accommodated. Then, when the extension member 5 is driven to contract, the frame member 1 is rotated about the support member and deployed. At this time, the bending member positions the skeleton member in a deployed state by restricting the skeleton member to the deployed position.

By the way, the bending member 4 in such a frame structure constitutes a position regulating device for positioning the frame member 1 in a desired cubic shape, and when the frame member 1 is expanded, it is synchronized with the expanding operation. , A spring mechanism (not shown) for rotating and expanding from a bent state in a substantially straight line, and the bending member 4 expanded in a substantially straight line are positioned in a substantially straight line, and the frame structure is regulated to a deployed position. A lock mechanism for locking is installed. Therefore, the bending member 4 forming the position regulating device is
If it is possible to realize a highly reliable deploying operation by interlocking with the deploying operation of the frame member 1, there is a problem that a large spring mechanism is required, resulting in a large size. Therefore, reducing the size of the bending member is an important issue in reducing the folding volume of the frame structure that is folded and deployed.

[0005]

As described above, the conventional position regulating device has a large size and has a problem that the folding volume of the frame structure is large. The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a position regulating device which has a simple structure, can be downsized, and can realize reliable and reliable operation control. To aim.

[0006]

SUMMARY OF THE INVENTION According to the present invention, the ends of a plurality of frame members are rotatably connected to each other so as to be combined with a frame structure. In a position regulating device that regulates the first and second positions in conjunction with folding and unfolding operations of the frame structure that controls the deployed position, and that regulates the position of the frame structure to the deployed position, the intermediate portion is provided with a rotating shaft. Are rotatably provided, and both ends thereof are installed between the frame members, and are rotated around the rotation axis according to a folding position and a deployed position of the frame structure body. A bending member for controlling the position of 2 and the bending member, and is stretched between both ends of the bending member,
At a second position controlled by the bending member, a wire member forming two sides of a substantially triangular shape and at least one of both ends of the wire member are elastically coupled to one of both ends of the bending member. And a tension spring member that applies a biasing force to the bending member in the second position direction via the wire member, and the frame structure is expanded from the folding position to the deployment position, and the bending member is Locking means for locking the bending member in a substantially straight line state in a state of being rotated from the first position to the second position about the rotation axis are provided.

[0007]

According to the above construction, in the initial folding position of the folding member, the biasing force of the tension spring member in the developing direction is maintained in the folding position without being applied by the action of the wire member. When the skeleton member is deployed, the urging force of the tension spring member is transmitted through the wire member in conjunction with the deploying operation of the skeleton member, and the skeleton member is rotated about the rotation axis and deployed in a substantially linear shape. Then, at the deployed position of the skeleton member, the bending member is positioned by the locking means to regulate the skeleton member to the deployed position. Therefore, the tension spring member for expanding and driving the bending member can be downsized by only applying the biasing force in conjunction with the expanding operation of the frame member.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a position regulating device according to an embodiment of the present invention.
Are erected between contact points on diagonal lines of two planes facing each other, which are the upper and lower surfaces of the frame member 1 combined in the cubic shape, and are rotatably connected to the support members 2 (FIG. 3).
reference).

That is, in the bending member 10, one ends of the first member and the second members 10a and 10b are rotatably connected to each other via the rotating shaft 11, and the first and second members are connected. 10
Coupling portions 12a and 12b are provided at the other end portions of a and 10b, respectively. The connecting portions 12a and 12b are rotatably connected to the support member 2 (see FIG. 3).

Among them, the first member 10a includes a pulley 1
3 is provided in the other end direction from the rotating shaft 11, and the tension spring member 14 is inserted in the inside. The tension spring member 14 has one end fastened to the first member 10a and the other end fastened to one end of a wire member 15. The intermediate portion of the wire member 15 is wound around the pulley 13. A lock claw 16 is rotatably provided on the first member 10 a, and a spring member 17 is provided on the lock claw 16.
Is locked so as to apply a spring force in the counterclockwise direction in the figure.

On the other hand, the second member 10b is provided with a wire guide portion 18 and a locking portion 19 at the other end. The other end of the wire member 15 wound around the pulley 13 is wound around the wire guide portion 18. Locking part 1
9 is provided rotatably around the axis with respect to the second member 10b, for example, and the other end of the wire member 15 is locked. Further, the locked portion 20 is provided on the second member 10b so as to correspond to the lock claw 16 of the first member 10a.

In the above-mentioned structure, the bending member 10 has the first and second members 10a, 10 about the rotation shaft 11 as shown in FIG. 1 in the folding position of the frame member 1.
b is folded. In this state, the first and second members 10a and 10b are kept in the folded state by the action of the wire member 15 with almost no biasing force (spring force) in the developing direction of the tension spring member 14 being applied. Be done.

When the extension member 5 is contracted and driven to expand the frame member 1, the bending member 10 is moved to the first position.
Also, the second members 10a and 10b are rotated about the rotation shaft 11 in the developing direction. Here, the first and second members 10
a and 10b are tension spring members 1 through the wire member 15.
An urging force of 4 is applied, and the skeleton member 1 is rotated in the deploying direction in conjunction with the deploying operation. And the bending member 10
The wire member 15 has substantially the same shape as the two sides of the substantially triangular shape until the skeleton member 1 reaches the deployment completion position, so that the urging force of the tension spring member 14 passes through the wire member 15. And is rotated to a substantially linearly expanded position as shown in FIG.

As described above, the position restricting device connects the both ends of the bending member 10 via the wire member 15 and the tension spring member 14 with the rotary shaft 11 of the bending member 10 interposed therebetween, and In the folded position, the urging force of the tension spring member 14 is prevented from being applied, and the urging force of the tension spring member 14 is applied via the wire member 15 in conjunction with the unfolding operation so that the tension spring member 14 is unfolded substantially linearly. Configured.

According to this, as the tension spring member 14 for driving the bending member 10 to deploy, only the biasing force for imparting the biasing force in conjunction with the deploying operation of the frame member 1 is required. By eliminating the urging force at the initial stage of deployment, it is possible to reduce the size as much as possible,
It contributes to the promotion of miniaturization of the frame structure.

In the above embodiment, the pulley 13 is arranged at the other end of the rotary shaft 11 in the direction of the other end. However, the present invention is not limited to this, and the pulley 13 is coaxial with the rotary shaft 11. May be arranged.

Further, in the above-mentioned embodiment, the case of applying to a cubic frame structure has been described, but the present invention is not limited to this shape, but can be applied to frame structures of various shapes. Therefore, the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the scope of the present invention.

[0018]

As described in detail above, according to the present invention, a position regulating device having a simple structure, capable of being miniaturized, and realizing reliable and reliable operation control can be provided. Can be provided.

[Brief description of drawings]

FIG. 1 is a diagram showing a position regulating device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a developed state of FIG.

FIG. 3 is a view shown for explaining a frame structure to which the present invention is applied.

[Explanation of symbols]

 1 ... Frame member. 2, 3 ... Support members. 5 ... Extension member. 10 ... Bending member. 10a, 10b ... First and second members. 11 ... Rotation axis. 12a, 12b ... Coupling portion. 13 ... Pulley. 14 ... tension spring member. 15 ... Wire member. 16 ... Lock claw. 17 ... Spring member. 18 ... Wire guide section. 19 ... Locking part. 20 ... Locked part.

Claims (2)

[Claims] 1. A skeleton structure that is joined to a skeleton structure by rotatably connecting the ends of a plurality of skeleton members to each other, and that rotates the plurality of skeleton members to control a folded position and an expanded position. In a position regulating device which controls the first and second positions in conjunction with folding and unfolding operations and regulates the skeleton structure to the unfolded position, an intermediate portion is rotatably provided via a rotating shaft, Both ends are installed between the frame members, and are rotated around the rotation axis according to the folded position and the deployed position of the frame structure, and the bending member that controls the first and second positions. And a wire member that is stretched between both ends of the bending member with the rotating shaft interposed therebetween and that forms two substantially triangular sides at a second position controlled by the bending member. At least one of both ends of the member is one of both ends of the bending member. A tension spring member that is elastically coupled to the bending member and applies a biasing force to the bending member in the second position direction via the wire member; and the frame structure is expanded from the folded position to the deployed position. ,
A position regulating device comprising: locking means that locks the bending member in a substantially linear shape in a state where the bending member is rotated from the first position to the second position about the rotation axis. . 2. The position regulating device according to claim 1, wherein the tension spring member is inserted in the bending member.