JP3111055B2 - Test transport system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test transport system for transporting an object to be tested, which is used for an electromagnetic test in an electromagnetic wave shielding room or an anechoic chamber.

[0002]

2. Description of the Related Art Conventionally, antenna tests and E
MC (Electro Magnetic Compatiblity)
An anechoic chamber is used for tests and the like. This anechoic chamber covers the entire room with an electromagnetic wave shielding material, shields the room against electromagnetic waves (hereinafter referred to as electromagnetic wave shielding), and also provides a radio wave absorber on the indoor wall surface or ceiling surface, and provides It prevents the reflection of radio waves from the ceiling surface. Further, an electromagnetic wave shielding room in which the entire room is covered with an electromagnetic wave shielding material to shield the electromagnetic waves is also used for applications such as an electronic control room and a measurement room where it is necessary to prevent the influence of electromagnetic waves from outside.

Conventionally, the above-described anechoic chamber and electromagnetic shielding chamber (hereinafter, referred to as an anechoic chamber) are provided with a table (hereinafter, referred to as a turntable) for rotating a test object. There is something. In a test in such an anechoic chamber, a test object is placed on a turntable, and the turntable is rotated to perform a test of radio wave radiation characteristics, high frequency radiation characteristics, and the like over the entire circumference of the test object. Has become.

[0004] Generally, in a test in an anechoic chamber or the like, a method of placing a test object on a measurement table and performing the test includes a method of testing the floor surface
For example, there is a method of placing a test object directly on a turntable and performing a test. In particular, in the latter case, the test object is often large and heavy, and the test object cannot often be carried in and out with human power.
Methods for loading and unloading the test object in such a case include a method using a large crane and a method using a cargo handling device such as a bogie or a forklift.

[0005]

However, when using a large crane, rails for moving the crane must be assembled. Since this rail is formed of a metal such as a steel frame, if it is installed in an anechoic chamber or the like, there is a problem that characteristics of the anechoic chamber or the like are greatly affected and good test results cannot be obtained.

On the other hand, when a cargo handling device such as a truck or a forklift is used, there is a problem that the weight that can be transported at one time is limited. In addition, when a cargo handling device is used, generally, a test object is placed on a platform such as a pallet and transported. Therefore, when the test object is placed on the floor together with the table, the table exists under the test object even during the test,
There is a problem that this table affects characteristics of an anechoic chamber or the like, and good test results cannot be obtained.

Further, when the test object is extremely heavy, for example, about 20 tons, it is difficult to unload the test object from the cargo handling device even if it can be carried in using the cargo handling device. There is. Further, if the test is performed with the test object placed on the cargo handling device, the cargo handling device affects the characteristics of the anechoic chamber and the like, and there is a problem that good test results cannot be obtained.

Conventionally, a large test object is carried in,
At the time of carrying out, the radio wave absorber in the radio wave anechoic chamber is damaged, and as a result, complete electromagnetic wave shielding and radio wave absorption cannot be performed, which has a problem that the measurement result may be greatly affected.

When the test object is a heavy object, the test object is disassembled and transported to an anechoic chamber or the like.
There is also a method of performing measurement after assembling the test object in an anechoic chamber or the like, disassembling the test object again, and carrying it out. However, in this method, it takes time and effort to carry in and carry out the test object, so that there is a problem that much time and effort are required for the entire test.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to enable a heavy test object to be easily carried in and out, and to be used for transporting the test object. An object of the present invention is to provide a test transport system in which an object to be tested does not affect a test .

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018]

SUMMARY OF THE INVENTION A test transport system according to the present invention includes a transport device for transporting a test object, a vertically movable support platform for supporting the transport device, and a liftable support platform. The upper surface of the support base forms a part of the floor surface, and when the support table is lowered, the support table is raised and lowered so as to form a space capable of storing the transfer device between the upper surface of the support table and the floor surface. Means.

In this test transport system, the support table is raised and lowered by the lifting means, and the upper surface of the support table forms a part of the floor surface when the support table is raised, and the upper surface of the support table when the support table is lowered. A space that can accommodate the transfer device is formed between the floor and the floor. This makes it possible to store the transport device that transports the test object in the space below the floor.

Further, in the test transfer system of the present invention,
Further, the upper surface may form a part of the floor surface, and a rotating table for rotating the test object may be provided, and the support table and the elevating means may be built in the rotating table.

Further, the test transfer system of the present invention is an example.
For example, it is used for a test using waves. The wave is, for example, an electromagnetic wave.

In the test transport system of the present invention,
For example, the side wall of the space and the transfer device each have electrical connection means for making an electrical connection between the side wall of the space and the transfer device when the transfer device is stored in the space. .

Further, in the test transport system of the present invention, for example, an electromagnetic wave shielding room in which the whole room is covered with an electromagnetic wave shielding material or the whole room is covered with an electromagnetic wave shielding material,
In addition, it is used in a radio wave anechoic chamber in which a radio wave absorber is provided at least partially inside the electromagnetic wave shielding material.

Further, in the test transfer system of the present invention,
For example, the upper surface of the transfer device forms a part of the floor surface when the support table is lowered.

Further, in the test transfer system of the present invention,
For example, at least the upper surface of the transport device is formed of an electromagnetic wave shielding material.

Further, in the test transfer system of the present invention,
For example, there is further provided a power supply device connected to the transport device for supplying driving power to the transport device.

In the test transport system of the present invention,
For example, it further includes a rail formed on the floor surface for guiding the transfer device to the support table.

[0028]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, an anechoic chamber to which a test transport system according to an embodiment of the present invention is applied will be described with reference to FIG. FIG. 1 is a plan sectional view showing an example of a configuration of a test facility including an anechoic chamber in the present embodiment. The test equipment shown in this figure
It is used for antenna tests, EMC tests for electronic devices, and the like.

The test equipment shown in FIG.
And a measurement room 120 which is an electromagnetic shielding room for measurement arranged adjacent to the anechoic chamber 110 and an electromagnetic shielding room 130. A large shield door 111 for loading and unloading the test object is placed in the anechoic chamber 110.
And a small shield door 112 for entering and exiting from the measurement room 120. In the present embodiment, a room adjacent to the anechoic chamber 110 via the door 111 is referred to as a front room.

The anechoic chamber 110 has a floor 113, four walls 1
14 and a ceiling (not shown), all of which are provided with an electromagnetic wave shielding plate made of an electromagnetic wave shielding material. Wall 1
A radio wave absorber 115 is attached to the indoor side surface of the ceiling 14 and the ceiling. On the floor 113, a turntable 10 as a test rotating device according to the present embodiment is provided. The turntable 10 has a built-in lifter 20 as a test elevating device according to the present embodiment.
The lifter 20 is provided with a transport trolley as a transport device in the present embodiment for transporting the test object. The floor 113 is provided with an antenna position 117 where the antenna is installed.

The electromagnetic wave shielding material is a material having a large reflection coefficient (close to 1) and a small transmission coefficient (close to 0) with respect to electromagnetic waves in a desired frequency band. Often used.

A radio wave absorber is a structure that has a small reflection coefficient and a low transmission coefficient (close to 0) for radio waves in a desired frequency band, absorbs incident radio wave energy, and converts it into heat energy.

The radio wave absorber 115 in FIG. 1 is composed of, for example, a tile-shaped ferrite radio wave absorber and a styrofoam base radio wave absorber attached to the indoor side surface of the ferrite radio wave absorber. A ferrite radio wave absorber is a radio wave absorber that utilizes the magnetic resonance loss of ferrite at a high frequency. The Styrofoam-based radio wave absorber is composed of a Styrofoam base mixed with carbon or the like as a resistor.

FIG. 2 is a perspective view showing the configuration of the test transport system according to the present embodiment. As shown in this figure, the turntable 10 has a disk shape. The upper surface of the turntable 10 forms a part of the floor surface 1. The central portion of the turntable 10 is cut out in a rectangular shape, and the lifter 20 is stored in the cutout portion. In the state shown in FIG. 2, the lifter 20 is in a lowered state. In this state, lifter 2
A space 2 having a rectangular parallelepiped shape capable of storing the transport vehicle 40 is formed between the upper surface of the space 0 and the floor surface 1.

The carriage 40 has a rectangular parallelepiped shape slightly smaller in width and length than the space 2, and is accommodated in the space 2. The floor 1 is provided with, for example, four guide rails 3 a to 3 d for guiding the carrier 40 from the loading / unloading port provided with the door 111 in FIG. 1 to the turntable 10. In addition, the turntable 10 has guide rails 3 a to 3 from the outer peripheral portion of the turntable 10 to the portion where the lifter 20 is stored.
Guide rails 4a to 4d that are connected to d are provided. Although not shown in FIG. 2, the transport vehicle 40 has a plurality of wheels traveling on the guide rails 3a to 3d and the guide rails 4a to 4d.

FIG. 3 is a sectional view showing the relationship between the guide rails 3a to 3d and the wheels of the carrier 40. As shown in this figure, two rails 3a and 3b among the four rails 3a to 3d have grooves on the upper surface,
The remaining two rails 3c and 3d have no grooves on the upper surface. Each of the rails 3a to 3d is installed such that the upper surface thereof is at the same height as the floor surface 1. The wheels 41a, 41b of the transport carriage 40 traveling on the grooved rails 3a, 3b have annular projections that fit into the grooves of the rails 3a, 3b. Rails 3c, 3 without grooves
d, the wheels 41c and 41d of the transport vehicle 40 traveling on
It has no projections.

The rails 3a to 3d are formed of an electromagnetic wave shielding material. Also, rails 3a, 3b having grooves
Is disposed farther from the antenna position 117 in FIG. This is to reduce the influence of the groove on the test.

In the present embodiment, two rails having grooves are provided, but it is sufficient that at least one rail has grooves.

Next, the turntable 10 will be described with reference to FIGS. FIG. 4 is a plan view of the turntable 10, and FIG. 5 is a cross-sectional view of the turntable 10. The turntable 10 has a disk-shaped upper plate 1.
1 and a disc-shaped lower plate 12 having substantially the same outer diameter as the upper plate 11.
And a side wall 13 connecting the outer peripheral portions of the upper plate 11 and the lower plate 12. A central portion of the upper plate 11 is cut out in a rectangular shape, and a storage portion for storing the lifter 20 is formed between the cut out portion and the lower plate 12. The storage section is separated from other parts by the side wall 14. A lifter 20 for moving up and down the transport trolley 40 is stored in the storage unit. As shown in FIG. 4, the guide rail 4a is provided on the upper surface of the lifter 20.
Guide rails 5a to 5d connected to .about.4d are provided.

In the vicinity of the outer peripheral portion of the lower plate 12, a plurality of casters 15 are provided in a circular shape. The caster 15 runs on the support 16.
As a result, the turntable 10 rotates.

A drive section for rotating the turntable 10 is provided below the turntable 10. The drive unit includes a rotating wheel 17 for rotating the turntable 10, a motor 18, and a reduction gear 19 for reducing the rotation of the output shaft of the motor 18 and transmitting the rotation to the rotating wheel 17.
And

At least the upper plate 11 of the turntable 10 is formed of an electromagnetic wave shielding material. The outer diameter of the turntable 10 is, for example, 10.5 m.

Next, the lifter 20 will be described with reference to FIG. FIG. 6 is a side view of the lifter 20.
The lifter 20 includes a support platform 21 that can move up and down to support a transport vehicle 40 that transports the test object.
And an elevating device for elevating and lowering 1. The elevating device includes, for example, four screw jacks 22 for elevating and lowering the support table 21, one motor 23 for driving these screw jacks 22, and a driving force of the motor 23 for each screw jack 22. Transmission mechanism 24 for transmitting
And a guide 25 for moving the support table 21 while keeping it parallel to the floor surface when the support table 21 is moved up and down. The support 21 is formed of an electromagnetic wave shielding material.

As shown in FIG. 4, a hole 2 provided with a floor lock pin, which is provided on a carrier 40, which will be described later, is provided at a position near the front chamber side end on the upper surface of the lifter 20.
6 are provided. Although not shown, this hole 26
Is provided with a sensor for detecting that the floor lock pin has been inserted into the hole 26. This sensor is, for example, a contact-type sensor.

As shown in FIG. 4, on the upper surface of the turntable 10, a switch box 3 in which a lifter hand operation switch for operating the lifter 20 is stored.
1 is provided. In addition, on the floor near the turntable 10, the guide rail 4a on the upper surface of the turntable 10 is provided.
So that ~ 4d matches the guide rails 3a ~ 3d on the floor surface 1,
A switch box 32 in which a rail positioning switch for instructing the turntable 10 to be positioned is provided.

Next, the carrier 40 will be described with reference to FIGS. FIG. 7 is a plan view of the transport vehicle 40 with a part cut away, and FIG. 8 is a side view of the transport vehicle 40. The transport vehicle 40 includes four wheels 41a, 41b, 41c, and 41d.
Wheels 41a and 41b arranged at positions corresponding to each other are connected by a shaft, and similarly, wheels 41c and 41d arranged at positions corresponding to each other are also connected by a shaft.

The transport vehicle 40 further includes four motors 42 for driving the transport vehicle 40. The output shaft of each motor 42 is connected to four inner wheels 41b, 41b, 41c, 41c via a chain 43, respectively.

Also, connectors 45 for instructing the operation of the transport vehicle 40 are provided at two front and rear positions on one side of the transport vehicle 40, to which a transport vehicle switch box 44 composed of, for example, a pendant switch can be connected. Is provided.

Further, a power feeding vehicle 50 is connected to the transporting vehicle 40 by a connecting hook (not shown). A battery 51 for generating electric power to be supplied to the transport vehicle 40 and a control panel 52 for controlling the transport vehicle 40 are mounted on the power supply vehicle 50. Control panel 52
Is provided with a key switch for enabling control of the transport vehicle 40. Battery 51 and control panel 52
Is connected to a power supply cable 53, and a power supply plug 54 is provided at an end of the power supply cable 53. On the other hand, the carrier 40 is provided with a power supply connector 46 to which the power supply plug 54 is connected.

Here, an example of the size and the maximum mounting amount of the transport vehicle 40 will be described. In this example, the size of the transport vehicle 40 is 5000 mm in width, 8600 mm in depth, and 400 mm in height. In this example, the maximum load is
20,000 kg.

In the present embodiment, the battery 51 is used to drive the transport vehicle 40 because the transport vehicle in the present embodiment is driven by a DC power supply. If an AC power supply is used to drive the transport trolley, a cord or the like for connecting to an AC power outlet is required, and this cord or the like hinders travel and hinders safe travel. On the other hand, in the present embodiment, such a problem does not occur because the battery 51 as a DC power supply is arranged near the transporting vehicle 40.

In this embodiment, the battery 5
1 and the control panel 52 are separate from the carrier 40,
This is to reduce the size of the transport vehicle 40 stored in the space 2.

As shown in FIG. 9, a floor lock pin 47 inserted into a hole 26 provided on the upper surface of the lifter 20 and a floor lock pin A pedal 48 for movement is provided.

Further, at least the upper surface of the carrier 40 is
It is formed of an electromagnetic wave shielding material.

Further, the side wall of the space 2 in the turntable 10 and the transport vehicle 40 are respectively formed by the transport vehicle 40 and the space 2.
It has an electric connection means for making an electric connection between the side wall of the space 2 and the transport trolley 40 when housed inside.

FIG. 10 is a cross-sectional view showing one example of this electrical connection means. In this example, the electrical connection means
The turntable 10 is provided with a finger contact portion 29, and the carrier 40 is provided with a metal mesh (net) 49. The finger contact portion 29 is formed of a metal having good conductivity, for example, a copper alloy or stainless steel. The metal mesh 49 is also formed of a metal having good conductivity, for example, a copper core material plated with nickel, or stainless steel.

Next, the test transport system according to the present embodiment is described.
The operation systems out will be described.

First, the operation when the test object is carried into the anechoic chamber 110 using the carrier 40 will be described. First, the test object is placed on the transport trolley 40 with the transport trolley 40 in the front room of the anechoic chamber 110. Next, in order to open the shield door 111 of the anechoic chamber 110, the open button of a door switch box (not shown) is pressed, and the door 111 is fully opened. Next, switch box 3
2 by operating the rail positioning switch in 2 so that the guide rails 4a to 4d on the upper surface of the turntable 10 match the guide rails 3a to 3d on the floor surface 1, and fix the turntable 10. . Next, the lifter 20 is raised by operating the lifter hand operation switch in the switch box 31 so that the upper surface of the lifter 20 is flush with the upper surface of the turntable 10. Thereby, the upper surface of the lifter 20 becomes a part of the floor surface.

Next, the power feeding vehicle 50 is connected to the transporting vehicle 40 by a manual operation, and the power feeding plug 54 of the power feeding vehicle 50 is connected to the power feeding connector 46 of the transporting vehicle 40. In addition, the transport trolley switch box 44 is connected to the connector 45 at the rear in the traveling direction. Next, the key switch of the control panel 52 is operated to make the transport vehicle 40 operable. Next, the transport trolley switch box 44 is operated to move the transport trolley 40 to the guide rails 3a to 3d and 4a to 4d.
d, 5a to 5d, and is moved to above the lifter 20.

When the transport vehicle 40 reaches a predetermined position on the lifter 20, the floor lock pin 4 of the transport vehicle 40
7 is inserted into a hole 26 provided on the upper surface of the lifter 20. The fact that the floor lock pin 47 has been inserted into the hole 26 is detected by a sensor, and based on the output signal of this sensor, the lifter 20 can be lowered.

Next, the power supply plug 54 of the power supply carriage 50
Is disconnected from the power supply connector 46 of the transport trolley 40, and the power supply trolley 50 is disconnected from the transport trolley 40. Next, the lifter 20 is moved down by operating the lifter hand operation switch in the switch box 31, and the power feeding cart 50 is stored in the space 2 in FIG. Thus, the upper surface of the transport vehicle 40 is at the same height as the upper surface of the turntable 10 and forms a part of the floor surface.

At this time, the metal mesh 49 of the carriage 40 is connected to the finger contact portion 2 of the turntable 20.
9 is electrically connected. Thus, it is possible to prevent the gap between the carrier 40 and the turntable 20 from affecting the characteristics and the test of the anechoic chamber 110.

Next, the fixation of the turntable 10 is released by operating the rail positioning switch in the switch box 32. Next, the shield door 111 is closed, and a test on the test object is started.

Examples of the test object carried in by using the carrier 40 include an electric discharge machine, a laser machine and the like.
In addition, examples of the test include a noise emission measurement test,
There are tests for malfunctions against electromagnetic waves, etc., all of which are tests using electromagnetic waves as waves.

Next, the operation when the test object is carried out from the anechoic chamber 110 to the front room by using the carrier 40 will be described. First, in order to open the shield door 111 of the anechoic chamber 110, an open button of a door switch box (not shown) is pressed to fully open the door 111. Next, the rail positioning switch in the switch box 32 is operated to position the turntable 10 so that the guide rails 4a to 4d on the upper surface of the turntable 10 match the guide rails 3a to 3d on the floor surface. 10 is fixed. Next, the lifter 20 is raised by operating the lifter hand operation switch in the switch box 31 and the lifter 2 is lifted.
The upper surface of 0 is the same height as the upper surface of the turntable 10.

Next, the floor lock pin 4 of the transport vehicle 40
7 is removed from the hole 26 provided on the upper surface of the lifter 20.

Next, the power supply truck 50 is connected to the transport vehicle 40 by a manual operation, and the power supply plug 54 of the power transport vehicle 50 is connected to the power supply connector 46 of the transport vehicle 40. In addition, the transport trolley switch box 44 is connected to the connector 45 at the rear in the traveling direction. Next, the key switch of the control panel 52 is operated to make the transport vehicle 40 operable. Next, the transport vehicle switch box 44 is operated to move the transport vehicle 40 to the guide rails 5a to 5d and 4a to 4d.
d, 3a to 3d to move to the front room.

Next, the power supply plug 54 of the power supply carriage 50
Is disconnected from the power supply connector 46 of the transport trolley 40, and the power supply trolley 50 is disconnected from the transport trolley 40. Next, the rail positioning switch in the switch box 32 is operated to release the fixation of the turntable 10. Next, shield door 1
Close 11.

In the case of a comparatively light test object which can be carried in without using the carrier 40, the lifter 20 is raised and the upper surface of the lifter 20 is
To the same height as the upper surface of Thereby, the upper surface of the lifter 20 becomes a part of the floor surface. The test object is lifter 2
0 or placed on the turntable 10.

As described above, according to the present embodiment,
According to the test transport system , the transport trolley 40 that transports the test object can be stored in the space 2 below the floor, and the upper surface of the transport trolley 40 can be a part of the floor. Therefore, according to the present embodiment, it is possible to easily carry in and carry out a test object having a large weight, and to prevent the transport cart 40 from affecting the characteristics of the anechoic chamber 110 and the test. Can be.

The reason that the transport vehicle 40 can be prevented from affecting the characteristics and the test of the anechoic chamber 110 is that the transport vehicle 40 is completely stored in the space 2 below the floor surface and is used for the test. This is because it does not become an electromagnetic protrusion that affects the electromagnetic wave as a wave. If the carriage 40 is present on the floor at the time of the test, for example, the American standard ANSI (AMERICAN NATIONAL STANDARD)
FOR INSTRUMENTATION)
Accurate testing cannot be performed. Hereinafter, the explanation will be supplemented. According to ANSI C63, “EUT (measurement object) and all cables are 3 mm to 1 mm in insulation material.
It must be insulated from ground by 2 mm. "
It is prescribed. In the case of an anechoic chamber or an electromagnetic wave shielding room, the floor surface is set to the large ground. Also, large heavy equipment that normally operates on conductive floors should be placed on the ground. Therefore, if the transport vehicle 40 is present on the floor at the time of the test, even if the transport vehicle 40 is formed of an insulating material, this is 3 mm to 12 m.
The thickness of m is not considered, and the condition of ANSI C63 cannot be satisfied. On the other hand, according to the present embodiment, the transport trolley 40 is completely stored in the space 2 below the floor surface, and the upper surface of the transport trolley 40 becomes the floor surface.
The condition of NSI C63 can be satisfied.

Further, according to the present embodiment, it is not necessary to unload the test object from the carrier 40 or to place the test object on the carrier 40 when unloading the test object. The loading and unloading of an object becomes easy, and the time for loading and unloading can be reduced.

According to the present embodiment, the carrier 4
0 is formed of an electromagnetic wave shielding material, so that when the carrier 40 is stored in the space 2 below the floor surface, the carrier 40 does not affect the characteristics of the anechoic chamber 110 and the test. can do.

Further, according to the present embodiment, for example, the transfer carriage 40 is formed by the finger contacts 29 of the turntable 20 and the metal mesh 49 of the carriage 40.
Is stored in the space 2, the turntable 20 and the carrier 40 are electrically connected to each other, so that the gap between the carrier 40 and the turntable 20 is not suitable for the characteristics and test of the anechoic chamber 110. The influence can be prevented.

Further, according to the present embodiment, even a heavy test object can be carried in without being disassembled, so that the heavy test object can be easily loaded and unloaded, and the loading and unloading can be performed easily. The time for carrying out can be reduced. Further, it is possible to perform tests on other test objects while assembling a heavy test object in the front room.

According to the present embodiment, the carrier 4
0 moves along the guide rails 3a to 3d, 4a to 4d, and 5a to 5d, so that the radio wave absorber 115 in the anechoic chamber 110 is damaged when a large test object is loaded or unloaded. Can be prevented.

The present invention is not limited to the above embodiment, and various changes can be made. For example, the present invention can be applied not only to a test in an anechoic chamber but also to a test in an electromagnetic shielding room. The configuration of the electromagnetic wave shielding room in this case is, for example, a configuration in which the radio wave absorber 115 is removed from the anechoic chamber 110 in FIG.

Further, the present invention can be applied not only to a test using an electromagnetic wave as a wave but also to a test using a sound wave as a wave in an anechoic chamber.

[0079]

As described above, claims 1 to 10
According to the test transport system according to any one of the above, the transport device for transporting the test object can be stored in a space below the floor surface, so even a heavy test object can be easily loaded, This makes it possible to carry out the test and to prevent an object used for transporting the test object from affecting the test.

Further, according to the test transfer system of the fifth aspect, when the transfer device is stored in the space below the floor, the electrical connection is made between the side wall of the space and the transfer device. Since it is performed, it is possible to prevent the gap between the side wall of the space and the transport device from affecting the test.

[0081] Further, according to the transport system for testing according to claim 8, at least the upper surface of the transport device, since it is formed by an electromagnetic wave shielding material, further, when housing the transport apparatus in the space below the floor surface In addition, there is an effect that the transfer device can be prevented from affecting the test using the electromagnetic wave.

According to the test transfer system of the ninth aspect, since the power supply device for supplying the driving power to the transfer device and connected to the transfer device is provided, the test transfer system is further provided under the floor surface. This has the effect of reducing the size of the transport device accommodated in the space.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing an example of a configuration of a test facility including an anechoic chamber according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a test transport system according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a relationship between a guide rail and wheels of a transport trolley in FIG. 2;

FIG. 4 is a plan view of the turntable in FIG. 2;

FIG. 5 is a sectional view of the turntable in FIG. 2;

FIG. 6 is a side view of the lifter in FIG. 2;

FIG. 7 is a plan view showing a part of the carrier in FIG.

FIG. 8 is a side view of the carrier in FIG. 2;

FIG. 9 is a side view showing a floor lock pin provided on the carrier in FIG. 2;

FIG. 10 is a cross-sectional view showing an example of an electrical connection means for making an electrical connection between a side wall of the space in FIG. 2 and a transport vehicle.

[Explanation of symbols]

1 ... floor surface, 2 ... space, 3a-3d, 4a-4d, 5a-
5d: guide rail, 10: turntable, 20: lifter, 40: carrier, 110: anechoic chamber.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01R 29/08 B66F 7/28 H05K 9/00

Claims (10)

(57) [Claims] 1. A transport device for transporting a test object, a support table capable of moving up and down to support the transport device, and an upper surface of the support table being a part of a floor surface when the support table is raised. And elevating means for elevating the support table so as to form a space in which the transfer device can be stored between the upper surface and the floor surface of the support table when the support table is lowered. A test transport system characterized by the following. 2. The apparatus according to claim 1, wherein the upper surface forms a part of a floor surface, and further includes a rotating table for rotating the test object, wherein the support table and the elevating means are built in the rotating table. The test transport system according to claim 1, wherein 3. The test transport system according to claim 1 , wherein the test transport system is used for a test using a wave. 4. The test carrier system according to claim 3 , wherein the wave is an electromagnetic wave. 5. The side wall of the space and the transfer device,
Each has an electrical connection means for making an electrical connection between the side wall of the space and the transfer device when the transfer device is stored in the space.
The test transport system according to claim 4 . 6. An electromagnetic wave shielding room in which the entire room is covered with an electromagnetic wave shielding material or an electromagnetic wave anechoic room in which the entire room is covered with an electromagnetic wave shielding material and a radio wave absorber is provided at least partially inside the electromagnetic wave shielding material. 3. The test transport system according to claim 1 , wherein the test transport system is used. 7. The test transfer system according to claim 1 , wherein the transfer device has a top surface which forms a part of a floor surface when the support table is lowered. . Wherein said conveying device, at least the upper surface, characterized in that it is formed by an electromagnetic wave shielding material 請
A test transport system according to any one of claims 1 to 7 . 9. Further, connected to the conveying device, for testing according to any one of claims 1 to 8, characterized in that it comprises a power supply device for supplying a driving power for said conveying device Transport system. 10. The test transport system according to claim 1 , further comprising a rail formed on the floor surface for guiding the transport device to the support table.