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Turntable device

A technology of turntable and round table, which is applied in the field of turntable devices, can solve the problems such as the conduction mechanism hindering the stability of the turntable part and the ground part of the same potential and difficult maintenance.

Active Publication Date: 2017-04-26
TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The wear of the conduction mechanism hinders stable equal potential between the turntable and the floor.
In addition, from the viewpoint of the maintenance of the conduction mechanism, the simplification of the structure of the conduction mechanism is required, and the cost reduction of the conduction mechanism is also required (for example, in the technology involved in Patent Document 1, when the fixed shaft of the grounding roller ( Rotation shaft) This structure is difficult to maintain when damage occurs)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041] image 3 It is a plan view showing the structure of the conduction mechanism included in the turntable device according to the present embodiment. also, Figure 4 is a cross-sectional view showing the structure of the conduction mechanism. here, image 3 , 4 is shown in figure 1 , 2 An enlarged view of a part of the gap 3 is shown, including the surrounding structure of the part.

[0042] Such as image 3 , 4As shown, a conductor 8 is arranged as a conduction mechanism. Conductor 8 is arranged so as to be in contact with both floor portion 1 and turntable portion 2 . Furthermore, when the turntable part 2 rotates, the conductor 8 rolls with respect to the floor part 1, maintaining the said contact, and also rolls with respect to the turntable part 2. As shown in FIG. That is, the conductor 8 is not fixed anywhere, but can freely roll in the gap 3 . The specific structure of this embodiment is as follows.

[0043] In the present embodiment, the floor portion ...

Embodiment approach 2

[0065] Figure 6 It is a sectional view showing the structure of the conduction mechanism included in the turntable device according to the present embodiment. here, Figure 6 is shown figure 1 , 2 An enlarged view of a part of the gap 3 is shown, including the surrounding structure of the part.

[0066] Such as Figure 6 As shown, a conductor 8 is arranged as a conduction mechanism. This conductor 8 is arranged so as to be in contact with both the floor portion 1 and the turntable portion 2 . Furthermore, when the turntable part 2 rotates, the conductor 8 rolls with respect to the floor part 1, maintaining the said contact, and also rolls with respect to the turntable part 2. As shown in FIG. That is, the conductor 8 is not fixed anywhere, but can freely roll within the gap 3 (more specifically, within the conductor mounting portion 12 described later). The specific structure of this embodiment is as follows.

[0067] In this embodiment, the floor part 1 is comprised ...

Embodiment approach 3

[0098] In this embodiment, the eaves portion 15 is added to the turntable device according to the second embodiment. Figure 7 It is a sectional view showing the structure of the conduction mechanism included in the turntable device according to the present embodiment. here, Figure 7 is shown figure 1 , 2 An enlarged view of a part of the gap 3 is shown, including the surrounding structure of the part.

[0099] Compare Figure 6 and Figure 7 It can be seen that the eaves portion 15 is additionally provided in the turntable device according to the present embodiment. Such as Figure 7 As shown, the eaves portion 15 covers the conductor mounting portion 12 from above. In addition, the eaves portion 15 is made of, for example, a non-conductive resin or the like.

[0100] here, in Figure 7 In the structural example of , the eaves portion 15 is connected to the ground portion 1 side, but not to the turntable portion 2 side. Additionally, with Figure 7 The structure i...

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PUM

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Abstract

The turntable device pertaining to this invention is provided with a floor surface part (1), a turntable part (2), and an electroconductive element (8, 8A). The floor surface (1) and the turntable part (2) have an electromagnetic-wave-shielding function. The turntable part (2) is arranged so that a gap is formed between the turntable part (2) and the floor surface part, and the turntable part (2) rotates relative to the floor surface part (1). The electroconductive element (8, 8A) touches both the floor surface part (1) and the turntable part (2), and rolls relative to both these components (1, 2) when the turntable part (2) rotates.

Description

technical field [0001] The present invention relates to a turntable device including a turntable unit used in an anechoic chamber or the like. Background technique [0002] There is usually a turntable device in the anechoic chamber. This turntable device has a floor portion as a fixed portion, and a turntable portion that is rotatably movable with respect to the floor portion. A test object such as an electronic component or an electric product is placed on the turntable, and the electromagnetic wave characteristic of the test object is tested while rotating the turntable. [0003] Here, a gap is formed between the turntable part and the floor part in order to avoid contact between the turntable part and the floor part when the turntable part rotates. That is, the turntable portion is separated from the ground portion by a small distance. In addition, both the turntable part and the floor part have electromagnetic wave shielding function. [0004] On the other hand, whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/0821
Inventor 大塚淳司杉本昭宪
Owner TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
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