JPH0542790U - Load bearing device - Google Patents

Abstract

(57) [Abstract] [Purpose] Supports acceleration loads during launch and return with a simple structure without requiring power resources,
The handling of the device is improved and the entire device can be downsized. [Structure] The experimental apparatus 1 fixed to the flange 3 is housed in a frame 6, and in the frame 6, vibration-proof gels 2a-2
supported by d. Buffer stoppers 4a to 4d, buffer stoppers 7a and 7b, and buffer stoppers 8a to 8d are attached to the inner wall of the frame 6. The buffer stoppers 4a to 4d reduce the acceleration load applied to the lower side in the Z-axis direction, the buffer stoppers 7a and 7b reduce the acceleration load applied to the X-axis direction, and the buffer stoppers 8a to 8d apply the acceleration load applied in the Y-axis direction. Also, the acceleration load applied to the upper side in the Z-axis direction is reduced.

Description

[Detailed description of the device]

[0001]

【Technical field】

 The present invention relates to a load supporting device, and more particularly to a mechanism for supporting a load applied to an experimental device during launch and return in a microgravity environment maintaining device.

[0002]

[Prior art]

 Conventionally, in this type of load supporting mechanism, as shown in FIG. 5, a coil spring 10 is provided between the experimental device 1 and the frame 9, and the coil spring 10 applies an acceleration load applied to the experimental device 1 during launch and return. I try to support it.

In addition, the clamp is moved by an electric drive unit according to the direction in which the acceleration load is applied, the panel on which the experimental device is mounted is fixed by this clamp, and the acceleration load applied to the experimental device during launch and return is measured. There is also a mechanism supported by clamps and cushion members.

In such a conventional load supporting mechanism, when the acceleration load applied to the experimental apparatus 1 is supported by the coil spring 10 at the time of launching and returning, the X-axis, Y-axis, and Z-axis of the supporting surface of the experimental apparatus 1 are supported. Since the coil springs 10 are arranged in the three axial directions and the acceleration load applied in each of the three axial directions must be taken up by each of the coil springs 10, it takes time to handle the device and the entire device becomes large. There are drawbacks.

In addition, when the acceleration load applied to the experimental device at the time of launching and returning is supported by the clamp and the cushion member, the clamp must be moved by an electric drive unit, which requires a power resource. There is.

[0006]

[The purpose of the device]

 The present invention has been made to eliminate the above-mentioned drawbacks of the conventional ones, and can support the acceleration load at the time of launch and return at a simple structure without requiring power resources. An object of the present invention is to provide a load supporting device which can be easily handled and can be downsized.

[0007]

[Device configuration]

 A load supporting device according to the present invention has a mounting member for mounting an experimental device, viscoelasticity, a vibration damping member for supporting the mounting member and preventing vibration to the mounting member, and having the viscoelasticity. A first cushioning member for relaxing an acceleration load from the experimental device side to the mounting member side in the Z-axis direction orthogonal to the mounting member, and the viscoelasticity, and X on the same plane as the mounting member. Of the second cushioning member that relaxes the acceleration load in the axial direction, the viscoelasticity, the acceleration load in the Y axis direction on the same plane that is orthogonal to the X axis direction, and the Z axis direction. A third cushioning member that alleviates an acceleration load from the mounting member side to the experimental apparatus side is provided.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a plan view of an embodiment of the present invention. In these figures, the experimental apparatus 1 is fixed to a flange 3, and the flange 3 is attached with vibration-proof gels 2a to 2d for preventing vibration.

The experimental apparatus 1 fixed to the flange 3 is housed in a frame 6 and is supported in the frame 6 by vibration-proof gels 2 a to 2 d. On the inner wall of the frame 6, buffer stoppers 4a to 4d for relaxing the acceleration load applied from the experimental device 1 side to the supporting surface side of the flange 3 in the Z-axis direction orthogonal to the supporting surface of the flange 3, and the supporting surface of the flange 3 are provided. The buffer stoppers 7a and 7b for relaxing the acceleration load applied to the upper X-axis direction, and the acceleration load applied to the Y-axis direction on the support surface of the flange 3 and the experimental device 1 from the support surface side of the flange 3 in the Z-axis direction. Cushion stoppers 8a to 8d for relaxing the acceleration load applied to the side are attached.

Here, shock absorbing materials 5 a to 5 d are attached to the experimental apparatus 1 side of the shock absorbing stoppers 4 a to 4 d. The antivibration gels 2a to 2d, the cushioning materials 5a to 5d, the cushioning stoppers 7a and 7b, and the cushioning stoppers 8a to 8d are each formed of viscoelastic silicon gel or the like. However, as the cushioning materials 5a to 5d, the cushioning stoppers 7a and 7b, and the cushioning stoppers 8a to 8d, those having a larger Young's modulus and tensile strength than the materials of the vibration-proof gels 2a to 2d are used.

3 and 4 are diagrams showing the operation of an embodiment of the present invention. Figure 3 shows the case in which an acceleration load is applied from the experimental device 1 side to the support surface side of the flange 3 at the time of launch or return. In this case, the lower surface of the flange 3 contacts the cushioning members 5a to 5d of the cushioning stoppers 4a to 4d, and the acceleration load is supported by the cushioning members 5a to 5d.

FIG. 4 shows a case where an acceleration load is applied from the supporting surface side of the flange 3 to the experimental device 1 side. In this case, the upper surface of the end portion of the flange 3 parallel to the X axis contacts the buffer stoppers 8a to 8d, and the acceleration load is supported by the buffer stoppers 8a to 8d.

Although not shown, when an acceleration load is applied in the X-axis direction, the end surface of the experimental apparatus 1 parallel to the Y-axis contacts the buffer stopper 7a or the buffer stopper 7b, and the acceleration load receives the buffer stopper 7a, Supported by 7b.

Further, when an acceleration load is applied in the Y-axis direction, the end surface parallel to the X-axis of the experimental apparatus 1 contacts the buffer stoppers 8a, 8b or 8c, 8d, and the acceleration load is changed by the buffer stoppers 8a-8d. Supported.

As described above, the experimental apparatus 1 is fixed on the flange 3 and housed in the frame 6 and supported by the viscoelastic vibration isolation gels 2a to 2d. The acceleration load applied to the support surface side of the dice 3 is mitigated by the viscoelastic buffer stoppers 4a to 4d, the acceleration load applied in the X-axis direction is mitigated by the viscoelastic buffer stoppers 7a and 7b, and the acceleration load applied in the Y-axis direction. In addition, in the Z-axis direction, the acceleration load applied from the support surface side of the flange 3 to the experimental apparatus 1 side is mitigated by the viscoelastic buffer stoppers 8a to 8d, so that the acceleration at the time of launching and returning at a simple structure. It can support loads.

In addition, since power resources are unnecessary and the entire experimental apparatus 1 does not need to be covered with a frame or the like, handling characteristics such as installation and replacement of the experimental apparatus 1 are improved and the overall shape is reduced. You can

In one embodiment of the present invention, silicon gel is used for the anti-vibration gels 2a to 2d, the cushioning materials 5a to 5d, the cushioning stoppers 7a and 7b, and the cushioning stoppers 8a to 8d. Other materials may be used as long as they have elasticity and low rigidity, and are not limited thereto.

[0019]

[Effect of the device]

 As described above, according to the present invention, the experimental apparatus is mounted on the mounting member and supported by the viscoelastic vibration isolator, and the Z axis direction orthogonal to the mounting member is moved from the experimental device side to the mounting member side. The first viscoelastic cushioning member relaxes the acceleration load in the X-axis direction, and the viscoelastic second cushioning member relaxes the acceleration load in the X-axis direction on the support surface of the mounting member, and is orthogonal to the X-axis direction. By reducing the acceleration load in the Y-axis direction and the acceleration load from the mounting member side to the experimental device side in the Z-axis direction by the viscoelastic third buffer member, power resources are not required, and it is easy. With such a structure, it is possible to support the accelerating load during launch and return, and it is possible to improve the handling of the device and reduce the size of the entire device.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a diagram showing the operation of an embodiment of the present invention.

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

FIG. 5 is a sectional view of a conventional example.

[Explanation of symbols]

 1 Experimental apparatus 2a-2d Gel for vibration damping 3 Flange 4a-4d Buffer stopper 5 Buffer material 6 Frame 7a, 7b Buffer stopper 8a-8d Buffer stopper

Claims (1)

[Scope of utility model registration request] 1. A mounting member on which an experimental apparatus is mounted, a vibration-proof member having viscoelasticity, which supports the mounting member and prevents vibration to the mounting member, and the mounting member having the viscoelasticity. A first cushioning member for relaxing an acceleration load from the experimental device side to the mounting member side in the Z-axis direction orthogonal to, and the viscoelasticity in the X-axis direction on the same plane as the mounting member. A second cushioning member that alleviates the acceleration load of
A viscoelastic material that reduces an acceleration load in the Y-axis direction on the same plane orthogonal to the X-axis direction and an acceleration load from the mounting member side to the experimental device side in the Z-axis direction; 3. A load supporting device, wherein the buffer member of 3 is provided.