JPH11210824A - Support structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain vibration from being transmitted to a body to be supported such as a device during transportation and align with a support table for the body to be supported while vibration control is not required because there is no vibration. SOLUTION: A damping member 4 fusible by heat is made to intervene between a support table 2 and a body 1 to be supported, and a heater 5 for heating a damping member 4 to be fused by heat is buried in the damping member 4. A support hole 1a having nearly conic inner face is formed in the body 1 to be supported, and a positioning block 3, which is fitted in and engaged with the support hole 1a due to the removal of the damping member 4 because it is fused by being heated by the heater 5, is provided in the support table 2. With these two part engaged with each other, the body 1 to be supported is aligned with the support table 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for supporting a supported body while buffering the same on a support base. The present invention relates to a support structure suitable for supporting a device that requires a predetermined alignment in a state where the vibration has subsided after a flight.

[0002]

2. Description of the Related Art When a supported member is supported by a supporting member, a spring or an elastic member is provided between the supported member and the supporting member to suppress transmission of vibration from the supporting member to the supporting member. There is a device in which a buffer means constituted by the above is interposed. For example, in the case of a device or equipment mounted on a rocket or the like, the device or the like, that is, a supported body is buffered and supported against vibrations at the time of launching of the rocket, and the vibration becomes stable and the vibration is reduced. It is necessary to perform alignment, that is, positioning, of the supported body in a state where it is accommodated.

For example, a structure shown in FIG. 4 is used as a buffer support structure of this type for performing a buffer for suppressing transmission of vibration to a supported member such as an apparatus or an apparatus, and then performing positioning. . In the shock-absorbing support structure 100 shown in FIG. 1, a supported body 101 is supported by an O-ring by a shock-absorbing support 110 disclosed in Japanese Patent Application Laid-Open No. 9-89045.
Vibration is prevented from being transmitted from the support base 102 to the supported body 101 by being attached to and supported by the base 102. As shown in FIG. 5, a bracket 103 is fixed to the supported member 101. The bracket 103 projects downward through a through hole 102a formed in the support base 102. An adjusting screw 104 composed of a male screw is horizontally screwed to the female screw portion 103a at the lower portion of the bracket 103. The adjusting screw 104 advances and retreats in the axial direction horizontal to the female screw portion 103a of the bracket 103 by rotation, and has a tapered surface 104a having a substantially conical shape at the tip. On the other hand, a fixing bracket 105 is fixed to the support base 102, and a substantially mortar-shaped tapered hole 105a is formed at a position where the tapered surface 104a of the adjusting screw 104 abuts. The tapered surface 104a and the tapered hole 105a are formed in a tapered shape having substantially the same inclination angle, and the tapered surface 104a and the tapered hole 105 are brought into close contact with each other by the advance and retreat of the adjusting screw 104 so as to be separated. The bracket 103, the adjusting screw 104, and the fixing bracket 105 are provided in three sets between the supported body 101 and the support base 102 to provide six degrees of freedom of movement and rotation between the supported body 101 and the support base 102. Restrained.

In the cushioning support structure 100, in the assembling stage, the mounting positions of the brackets 103 and the fixing brackets 105 are adjusted, and the adjusting screws 104 are tightened so that three sets of tapered surfaces 104a and tapered holes 105a are formed. Adhere. Where the support
The alignment of the supported object 101 with respect to the support table 102 is performed in a state where the position of the supported object 101 and the six degrees of freedom of rotation with respect to the supported object 102 are restricted.

When launching a rocket, etc., each adjusting screw 104 is turned in the direction opposite to the screwing direction to rotate three sets of tapered surfaces.
The 104a and the tapered hole 105a are sufficiently separated from each other to prevent interference between the adjusting screw 104 and the fixing bracket 105 due to vibration at the time of launching. Thus, when the support 102 vibrates,
The operation of the buffer support 110 causes the support
Transmission of vibration to 1 is suppressed. The rocket enters a stable flight state and the vibration of the support 102 stops, and the
When the alignment with the support table 102 becomes necessary, the adjusting screw 104 is screwed in so that the three sets of tapered surfaces 104a and the tapered holes 105a are brought into close contact with each other, so that the alignment adjusted in the first assembly stage can be obtained again.

In order to rotate the adjustment screw 104, a rotation mechanism (not shown) driven by a motor or the like is attached to the adjustment screw 104. By changing the rotation direction of the rotation mechanism, the adjusting screw 104 can be tightened or loosened. In addition, when there is an operator who boarded near the buffer support structure 100 such as a space shuttle, the operator can rotate the adjusting screw 104 without attaching a motor-driven rotation mechanism.

[0007]

However, in the above-described cushioning support structure 100, the adjusting screw 104 is used to obtain the alignment of the supported body 101 with the support base 102 after the vibration.
Must be rotated, and in the case of motor driving, a complicated motor driving mechanism for rotation must be provided. For this reason, the buffer support structure 100 becomes large and the weight increases. This is inconvenient, especially in the case of a rocket or the like, where the weight of the device is greatly limited.

In some cases, the operator rotates the adjusting screw 104 without providing a motor drive mechanism. However, since the operator must turn the screw with a jig or the like, the alignment operation is complicated.

SUMMARY OF THE INVENTION The present invention provides a support structure having a simple structure and good operability, which can provide an alignment of a supported body with a support table after vibration while providing cushioning support against vibration. The purpose is.

[0010]

As a technical means for achieving the above-mentioned object, a supporting structure according to the present invention is designed such that when a supported member is placed on a supporting table and supported, the supporting structure is connected to the supporting table. In a support structure for supporting a supported body by being interposed between the supported body and a support member, a buffer member is provided on the support base to prevent transmission of vibration from the support base to the supported body, and the buffer member is heat-meltable. And a heating means for heating the buffering member is embedded in the buffering member, and the heating means heats and melts the buffering member as desired, so that a predetermined portion of the supported member is formed. It is characterized in that the supported member is supported by the support table in a state where the predetermined portion of the support table is in close contact with the support table.

That is, before being heated by the heater,
The supported member is supported by the support base with a buffer member interposed therebetween. For this reason, even if vibration is applied to the support table, the vibration is absorbed by the buffer member, and the vibration of the supported member is suppressed. On the other hand, after the buffer member is heated and melted by the heater,
The buffer member flows out from between the supported member and the support base and is removed. Therefore, the supported member is directly supported by the support table, and alignment can be performed.

Further, the support structure according to the second aspect of the present invention comprises:
The support base and the supported body have a concave portion and a convex portion that engage with each other and align the supported body with respect to the support base by the buffer member being heated and melted and removed by the heater. It is characterized by:

When the buffer member is melted by the heating of the heater and flows out and is removed from between the supported member and the support, the concave portion and the convex portion of the support and the supported member are engaged to perform alignment. Will be

As a preferable shape for the concave portion and the convex portion, the support structure according to the third aspect of the present invention has a substantially conical convex portion on the support surface of the support base, and the outer surface of the cushioning member has the convex surface. The convex portion and the concave portion are provided so as to protrude outside the conical surface of the portion, the concave portion corresponding to the convex portion is provided on the supported body, and the buffer member is fused and removed and the convex portion and the concave portion are engaged. It is characterized by doing.

Further, the support structure according to the fourth aspect of the present invention comprises:
A biasing means is provided between the supported body and the support base, and the biasing force of the biasing means is biased in a direction in which the supported body and the support base approach each other.

That is, when the cushioning member is melted and removed from between the supported member and the support table, the supported member is drawn to the support table by the urging force of the urging means. Engagement is ensured and positioning is performed. In particular, in the case of a rocket, since the position of the supported body is determined in outer space, the positioning is performed in a weightless space.
The supported body must not be separated from the support table. For this reason, the urging force of the urging means is urged in a direction in which the supported body and the support stand are brought into close contact with each other.

Further, the support structure according to the invention of claim 5 includes:
A biasing means is provided between the supported body and the support base, and the biasing force of the biasing means is biased in a direction in which the supported body and the support base are separated from each other.

When the support structure is used on the ground, the supported body is placed in close contact with the support table by its own weight, so that the transmission of the vibration to the supported body is performed by not only the buffer member but also the supporting member. By using a biasing means, it is possible to suppress the movement by these cooperation. For example, when transporting various measuring devices to a predetermined place by a vehicle, the vibration during transportation is suppressed by the buffering member and the urging means, and the buffering member is melted and removed in a state where it is positioned at the predetermined position. The gravity of the supported body comes into close contact with the support table against the biasing force of the biasing means, and the supported body is positioned at a predetermined position with respect to the support table.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail based on an example of an embodiment shown in the drawings. 1 to 3 show an embodiment of the support structure 8 of the present invention.
In this embodiment, the equipment mounted on the rocket is supported at a predetermined position on the rocket by the support structure 8. In this support structure 8, a buffer member 4 having heat melting property is interposed between the support base 2 and the supported member 1, and a heater 5 for heating and melting the buffer member 4 is provided on the buffer member 4. It is buried. A support surface 2a formed in a plane is formed on the support base 2, and a positioning block 3 as a projection is fixed to the support surface 2a.

As shown in FIGS. 2 and 3, the positioning block 3 has a substantially conical shape.
Protrusions 3b are formed at every 90 degrees in the circumferential direction for abutting and supporting. The projection 3b has a conical surface 3a.
Are formed separately on the distal end side and the proximal end side. At the center of the conical surface 3a of the positioning block 3, an annular groove 3c for mounting the buffer member 4 is formed over the entire circumference.

The cushioning member 4 has an annular shape formed by a part of a substantially conical shape and has a shape to be incorporated into the groove 3c of the positioning block 3, and its outer portion protrudes more outward than the outer surface of the projection 3b. It is like that. However, conical surface 3a
A thin portion 4a is formed in a portion between the protruding portions 3b, 3b adjacent to the distal end side and the proximal end side.

As the material of the cushioning member 4, it is preferable to use a silicon-based adhesive having a heat melting property. A heater 5 is embedded in the buffer member 4.
The heater 5 is made of, for example, a nichrome wire or the like,
For example, by forming the heater 5 and the buffer member 4 integrally with a molding die, the buffer member 4 in which the heater 5 is embedded can be obtained. Here, as shown in FIG.
The position of the heater 5 inside is set to be lower than the conical surface 3a when the buffer member 4 is attached to the groove 3c of the positioning block 3.

The heater 5 is connected to a terminal 7 formed at an appropriate position on the support 2. When the terminal 7 is energized, the buffer member 4 is heated and melted by the heater 5.

A support hole 1a which is a concave portion for accommodating the positioning block 3 is formed at a position on the surface of the supported body 1 facing the support table 2 and coinciding with the positioning block 3. The support hole 1a has a substantially mortar shape, and is a tapered surface having an inclination angle substantially equal to the conical surface 3a of the positioning block 3. Therefore, when the positioning block 3 is directly accommodated in the support hole 1a, these are not slid. I will be close.
Further, in order to restrict six degrees of freedom when positioning the supported body 1, two or more sets of the positioning block 3 and the support hole 1a are provided for one supported body 1.

Further, a pulling spring 6 is provided between the supported body 1 and the support base 2 as a biasing means composed of a tension coil spring for biasing the supported body 1 toward the support base 2. I have.

The operation of supporting the supported body 1 by the above-described supporting structure 8 will be described.

When supporting the support 1, the positioning block 3 is temporarily placed on the support 2. And the supported member 1
The supporting hole 1a is directly engaged with the positioning block 3 without providing the buffer member 4, and the supported body 1 is temporarily assembled. here,
In order to adjust the alignment of the support 1 with the support 2, the position of the positioning block 3 is adjusted and fixed to the support 2.

Next, the supported member 1 is removed, and the cushioning member 4 is attached to the positioning block 3. Then, the supported body 1 is again supported by the positioning block 3 while sandwiching the buffer member 4. The rocket is launched in this state.

When the support base 2 vibrates due to the launch of the rocket, the vibration is buffered by the buffer member 4 and transmitted to the supported member 1. Since the transmission of the vibration from the support table 2 to the supported member 1 is performed through the buffer member 4 and the pulling spring 6, the buffer effect is determined by a value obtained by combining the spring constants of the two. You.

When the rocket flies in a stable flight, the vibration disappears. After the vibration stops, when it becomes necessary to align the supported body 1 with the support 2, a current is supplied to the terminal 7 and the heater 5 is supplied to the heater 5. Turn on electricity. When the heater 5 is heated, the buffer member 4 is gradually melted. Here, the melted buffer member 4 is pushed out by being transmitted between the conical surface 3a of the positioning block 3 and the support hole 1a because the supported body 1 and the support base 2 are drawn by the pulling spring 6. . Then, the projection 3b of the positioning block 3 comes into close contact with the support hole 1a of the supported body 1. Thereby, the support table 2 of the supported body 1
Can be reproduced, that is, the alignment performed before the vibration can be obtained.

At this time, since the amount of the buffer member 4 flowing out of the thin portion 4a of the buffer member 4 is smaller than that of the other portions, the buffer member 4 enters between the projection 3b and the support hole 1a to prevent close contact. Can be prevented. Further, since the position of the heater 5 inside the buffer member 4 is lower than the conical surface 3a, even if the buffer member 4 begins to melt, the heater 5 is sandwiched between the projection 3b or the conical surface 3a and the support hole 1a. It is possible to prevent the close contact between the portion 3b and the support hole 1a.

As described above, the support structure 8 of this embodiment is
According to this, since the supported member 1 is supported by using the buffer member 4, even if vibration occurs due to launching of the rocket, the supported member 1 can be supported while buffering. As a result, even if a precision instrument or the like that is liable to malfunction due to the vibration is mounted on the rocket, it is possible to prevent the occurrence of a malfunction or the like due to the vibration.

According to the support structure 8 of the present embodiment,
When the heater 5 is energized and the buffer member 4 is melted, the positioning block 3 and the support hole 1a of the supported body 1 are brought into direct contact to support the supported body 1, so that the supported body 1 is supported. Alignment with the table 2 can be easily obtained. For this reason, a complicated structure is not required to reproduce the alignment, so that the support structure 8 can be simplified and reduced in size and weight. In addition, since no complicated operation is required to reproduce the alignment, operability can be improved.

The embodiment described here is a preferred embodiment of the present invention, and the present invention is not limited to this, and can be variously modified and implemented without departing from the gist. Of course. For example, in the above-described embodiment, the support structure 8 supports a device mounted on a rocket, but the present invention is not limited to this, and may support a device used on the ground. Also in this case, the supported body 1 can be supported while buffering, and the alignment of the supported body 1 with the support base 2 can be easily obtained. In the case of equipment used on the ground, the supported body 1 is placed on the support base 2 by its own weight unlike in the case of outer space, so that the direction of the urging force of the urging means is The body 1 may be urged in a direction to separate the body 1 from the support base 2. When the urging force is urged in such a direction, the vibration is suppressed by the buffer means 4.
And the urging means cooperate with each other, so that vibration can be suppressed efficiently.

[0035]

As is apparent from the above description, in the supporting structure of the first aspect, a buffer member having thermal fusibility is interposed between the support base and the supported member, and the buffer member is heated. Since the heater that melts this was embedded in the buffer member,
Before being heated by the heater, the supported body is supported on the support base via a buffer member. For this reason, even if vibration is applied to the support table, the vibration is absorbed by the buffer member, so that the supported member can be suppressed from vibrating.

After the heater is heated to melt the buffer member, the buffer member flows out from between the supported member and the support base and is removed. For this reason, the supported member is directly supported by the support table, and the alignment of the supported member with respect to the support table can be easily performed. That is, since a complicated structure is not required for obtaining the alignment, the support structure can be simplified and the size and weight can be reduced. In addition, since no complicated operation is required to obtain the alignment, operability can be improved.

Further, in the support structure according to the second aspect of the present invention, the support base and the supported body are engaged with each other by the buffer member being melted and removed by the heating of the heater, thereby supporting the supported base. Since the cushioning member is melted by the heating of the heater and flows out and is removed from between the supported member and the supporting member, the supporting member and the supported member are removed. The concave portions and convex portions are engaged with each other to perform alignment. For this reason,
Alignment can be performed reliably.

According to the support structure of the third aspect of the present invention, when the buffer member is heated and removed, the convex portion and the concave portion can be gradually engaged, and the support base for the supported member can be formed. Can be easily positioned, and alignment can be performed reliably.

According to the support structure of the fourth aspect of the present invention, the supported body is drawn to the support base, and the engaged state can be reliably maintained. For this reason, it becomes an effective support structure especially in a weightless space.

Further, according to the supporting structure of the fifth aspect of the present invention, since the supported body is supported by the urging means together with the buffer means, the vibration can be more reliably suppressed. For this reason, the supporting structure is effective particularly when the supported body comes into close contact with the support base by its own weight.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the entire support structure of the present invention.

FIG. 2 is a perspective view showing a positioning block and a buffer member.

FIG. 3 is a central vertical sectional view showing a positioning block.

4A and 4B are views showing a conventional support structure, wherein FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a bottom view.

FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 showing a main part of a conventional support structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supported object 1a Support hole (depression) 2 Support base 3 Positioning block (convex part) 4 Buffer member 5 Heater 6 Pulling spring (biasing means) 8 Support structure

Claims (5)

[Claims] 1. A supporting structure for supporting a supported member by interposing between the supporting table and the supported member when the supported member is placed on the supporting table and supported by the supporting table. To prevent transmission of vibrations from the support base to the supported member, the buffer member is made of a material having a heat melting property, and a heating means for heating the buffer member is embedded in the buffer member. By heating and melting the buffer member by the heating means, a predetermined portion of the supported body and a predetermined portion of the support stand are brought into close contact with each other, and the supported body is supported by the support base. Features support structure. 2. The concave portion, in which the support member and the supported member are engaged with each other and aligned with the support member by the buffer member being heated and melted and removed by the heater. The support structure according to claim 1, further comprising a projection and a projection. 3. A substantially conical convex portion is provided on the support surface of the support base, and the outer surface of the cushioning member is provided so as to protrude outside the conical surface of the convex portion. The support structure according to claim 2, wherein a concave portion that matches the convex portion is provided, and the convex portion and the concave portion engage with each other in a state where the buffer member is melted and removed. 4. An urging means is provided between the supported body and the support base, and the urging force of the urging means is urged in a direction in which the supported body and the support base approach each other. The support structure according to any one of claims 1 to 3, wherein: 5. An urging means is provided between the supported body and the support base, and the urging force of the urging means is urged in a direction in which the supported body and the support base are separated from each other. The support structure according to any one of claims 1 to 3, wherein: