JP2017049072A - Environment test device and test device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a test device that improves a composite test device that carries out tensile test on an object to be tested that is installed in the test chamber of an environment test device, and the resistance of which when a rod, etc., moves inside an open hole is small and which is not susceptible to freezing or dew condensation inside or near the open hole.SOLUTION: Gaps 45, 46 are formed in a heat-insulation wall 10, and a block 100 is built-in. An open hole 105 is provided in the block 100, constituting open holes 20, 21 for rod insertion of an environment test device 2. A tapered inclined plane is formed by the left and right side faces 178a, 178b of the block 100 and the left and right side faces 170a, 170b of a blockade member 31, the tapered inclined plane conforming to and being in contact with a tapered inclined plane formed by the left and right side walls 160, 161 of the gap 45.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an environmental test apparatus capable of creating a desired environment in a test chamber. The present invention also relates to a test apparatus for performing a test such as a material test.

2. Description of the Related Art Material testing apparatuses that test basic characteristics of metal materials and rubber are known. Examples of the material testing apparatus include a tensile tester, a compression tester, a shear tester, a hardness tester, and an impact tester. A creep testing machine using rubber or resin as a test object is also known.
The tensile tester includes a pair of gripping tools, a moving device that moves one gripping tool, an extension meter that detects the amount of movement of the gripping tool, and a load meter that detects a tensile load. In the tensile test, both ends of a sample (test object) molded into a predetermined shape are gripped by the pair of gripping tools described above, and one gripping tool is moved away from the other by a moving device. The elongation of the sample in the meantime is measured with an extensometer, the tensile load applied to the sample is measured with a load meter, and it is used as a material for creating a stress / strain diagram of the sample.

  There are also known test apparatuses for testing the performance of materials in a low temperature environment or a high temperature environment. For example, if it is a device for performing a tensile test, it is equipped with a thermostatic device (environmental testing device), and a tensile test is carried out by installing a test object in a test chamber of the thermostatic device. Hereinafter, a test apparatus including a thermostatic apparatus is referred to as a “composite test apparatus” in order to distinguish it from a normal test apparatus.

  The thermostat disclosed in Patent Document 1 is used as a component member of a combined test apparatus, and a through-hole through which a test jig such as a gripper is passed is provided in the upper part of the thermostat.

A composite type tensile testing device, which is one of the composite testing devices, is composed of a thermostatic device and a pulling device that pulls a test object. The pulling device has a pair of gripping tools, a moving device for moving one gripping tool, an extension meter for detecting the amount of movement of the gripping tool, and a load meter, like the above-described tensile testing machine. .
In the tension device used in the composite type tensile test device, the moving device is provided with a rod. A gripping tool is attached to the tip of the rod.

In the composite type tensile test apparatus, the above-described rod is inserted into the through-hole of the thermostatic bath, and the gripping tool is installed in the test chamber of the thermostatic apparatus.
In the composite type tensile test apparatus, each of the pair of grippers is in the test chamber of the thermostatic apparatus, and the sample is gripped in the test chamber.
Then, the rod is moved to pull the sample in the test chamber, and the elongation of the sample and the load applied to the sample are measured.

JP 2000-314692 A

Since the constant temperature apparatus adjusts the internal test chamber to a desired temperature and humidity, the test chamber is preferably a sealed space. However, the thermostat used in the combined test apparatus has a through hole for inserting a rod or the like into the test chamber as described above.
As a result, outside air enters the test chamber through the through-hole and disturbs the internal environment, or high-temperature air, low-temperature air, or high-humidity air in the test chamber leaks to the outside, adversely affecting the thermostat itself and surrounding equipment. May affect.
Therefore, it is desirable that the gap between the through hole provided in the test chamber and the rod or the like is small.

However, the test chamber is covered with a heat insulating wall, and it is difficult to provide a through hole that matches the outer shape of a rod or the like.
That is, the heat insulating wall is a structure in which two metal plates are opposed to each other with a certain interval, and a heat insulating material is disposed between them. In order to provide a through-hole in the heat insulating wall, it is necessary to provide an opening in the two metal plates and the intermediate heat insulating material. And the opening end of a metal plate needs to perform an end surface process so that water vapor | steam etc. may not penetrate | invade into a heat insulating material side.
The end face processing of the opening end is sheet metal processing, and the dimensional accuracy is low. When the end face processing is further performed, the dimensional accuracy of the through hole is further deteriorated. Therefore, for the convenience of processing, it is difficult to provide a through-hole that matches the outer shape of a rod or the like in the thermostatic device.

Therefore, the present inventors have adopted a structure in which holes that match the outer shape of a rod or the like are provided in a resin block body and the block body is embedded in a heat insulating wall.
FIG. 19 is a configuration diagram of an environmental test apparatus prototyped by the inventors.
The environmental test apparatus 400 has a test chamber 402 inside, and has a main body 401 and a door 403. One surface of the main body 401 is open, and the test chamber 402 becomes a substantially closed space by closing the door 403.
In the environmental test apparatus 400, a notch 408 is provided on the opening end surface of the main body 401, and a block body 405 is attached to the notch 408. The block body 405 is provided with a through hole 406.
A plate or packing 407 is attached to the opening of the notch 408 to prevent the block body 405 from falling off.

  In the configuration described above, the through hole 406 provided in the block body 405 functions as a through hole communicating with the test chamber 402. Further, since the block body 405 is made of resin, it is easy to form an accurate hole, and the gap between the rod or the like and the through hole can be reduced. Furthermore, according to the above-described configuration, the end face processing of the through hole is unnecessary.

When the inventors made a prototype of the environmental test apparatus 400 having the above-described structure and experimented with the test, an unexpected problem occurred. That is, when the internal environment of the test chamber 402 is brought to a high temperature state, the block body 405 in the heat insulating wall expands, the block body 405 is distorted, the main body portion of the test chamber 402 is distorted, and the block body 405 and the cutout portion 408 A gap was formed between the inner wall and the air in the test chamber 402 leaked to the outside from between the block body 405 and the inner wall of the notch 408.
Further, when the internal environment of the test chamber 402 is brought to a high temperature state, the block body 405 in the heat insulating wall expands, and the packing 407 on the end surface of the main body 401 expands as shown in FIG. Therefore, anxiety has arisen about ensuring the airtightness between the main body 401 and the door 403.

  The present invention addresses the above-mentioned new problems and is intended to improve an environmental test apparatus having a through-hole that penetrates a test chamber. We propose an environmental test device with a structure that prevents indoor air from leaking or outside air from entering the test chamber.

  The invention described in claim 1 for solving the above-described problem has a heat insulating region surrounded by a heat insulating wall and a test chamber that is a part or all of the heat insulating region and can form a predetermined environment. In the environmental test apparatus having a through hole communicating between the inside and the outside of the heat insulating region, a space is formed in the heat insulating wall, a block body is built in the space, and the through hole is provided in the block body. And at least one of the inner walls of the gap portion has an inclined surface, the block body also has an inclined surface, and the inclined surface of the inner wall of the gap portion and the inclined surface of the block body are in contact with each other. Environmental test equipment.

  In the environmental test apparatus according to the present invention, the inner wall of the void portion and the block body have an inclined surface, and the inclined surface on the void portion side and the inclined surface on the block body side are in contact with each other. Therefore, when the block body expands, the wedge effect increases the degree of adhesion between the block body and the inner wall of the gap, and airtightness between the block body and the inner wall of the notch is ensured. Further, the expansion of the block body toward the notch opening side is suppressed. For this reason, it is unlikely that outside air will enter the test chamber or the air inside the test chamber will leak outside.

  Invention of Claim 2 has a main-body part which has the said heat insulation wall, and a sealing member, A heat insulation wall of a main-body part has a notch part, and the opening part opened to the end surface side of the heat insulation wall of the said notch part The sealing member covers, the part surrounded by the sealing member with a part or all of the inner wall of the notch is the gap, the inclined surface is on the inner wall facing the notch, the notch is The environmental test apparatus according to claim 1, wherein the environmental test apparatus has a tapered shape with an area narrowing from the opening side toward the back side.

  According to the present invention, the wedge effect when the block body expands is more remarkably exhibited. Also, the block body is prevented from falling off.

  The invention according to claim 3 is the environmental test apparatus according to claim 2, wherein the sealing member has an insertion portion that enters the notch portion of the main body portion, and the insertion portion abuts against the block body. .

  According to the present invention, the movement of the block body is prevented, the position of the block body does not change, and the position of the through hole does not change.

  The invention according to claim 4 is characterized in that there is an engaging member for attaching the sealing member to the main body, and the engaging member has an anti-tensioning member that receives a pulling force by a force in a direction in which the sealing member separates from the main body. The environmental test apparatus according to claim 2 or 3.

  According to the present invention, the movement of the block body is more reliably prevented, the position of the block body does not change, and the position of the through hole does not change.

  A fifth aspect of the present invention is the environmental test apparatus according to any one of the first to fourth aspects, wherein the block body has a rib on the edge.

  In the environmental test apparatus of the present invention, ribs are provided on the edge of the block body. The rib strongly presses the inner wall of the gap, and airtightness between the block body and the inner wall of the gap is ensured.

  It is desirable that the block body be provided with a communication hole that communicates the through hole and the side surface of the block body.

  The invention described in claim 7 has a dry gas supply source or a negative pressure generation source, and the gap is connected to the dry gas supply source or the negative pressure generation source. The environmental test apparatus according to any one of the above.

In the environmental test apparatus of the present invention, during the test, the dry gas is supplied to the gap from the dry gas supply source, or the gap tends to have a negative pressure.
Here, the dry gas is a gas having a lower dew point than the outside air or the air in the test chamber.
When supplying a dry gas from a dry gas supply source to the gap, the periphery of the block body is filled with a gas having a low dew point, and the block body is thermally deformed and a gap is formed between the block body and the inner wall of the gap. Even if this occurs, the outside air does not enter the test chamber. Further, it is possible to prevent the air in the test chamber from leaking outside.
It is also desirable to supply a dry gas to the through holes. Since the through hole communicates the inside and outside of the heat insulation region, the through hole has an external opening that opens to the outside of the thermostat and a heat insulation region side opening that opens to the heat insulation region.
The gas supplied into the through-hole from the inner peripheral side of the through-hole flows through a gap between the through-hole and a member inserted into the through-hole, and a part is released to the atmosphere from the external opening. Therefore, the vicinity of the opening on the outside of the through hole is a gas atmosphere with a low dew point. Therefore, icing and condensation are unlikely to occur near the outside opening of the through hole.
Further, if the gap is maintained at a negative pressure tendency, the air in the test chamber is less likely to leak to the outside, and condensation or the like is less likely to occur during high-temperature and high-humidity operation.
It is desirable to supply a dry gas to the through holes or to have a negative pressure tendency.

  The invention of the combined type testing machine includes the environmental test apparatus according to any one of claims 1 to 7 and an external force applying device that applies an external force to the device under test. The external force applying device can attach and detach the device under test. A holding member that directly or indirectly holds; and a drive unit that operates the holding member, wherein the drive unit of the external force applying device is outside the heat insulating region, and the holding member of the external force applying device is outside the heat insulating region or The test apparatus is characterized in that the device under test in the test chamber and the holding member of the external force applying device are connected directly or indirectly through the through hole.

  According to the present invention, an external force can be applied to the DUT under a predetermined environment.

In the environmental test apparatus of the present invention, even if the block body expands, it is difficult for gaps to be formed in each part, and air in the test chamber does not leak or outside air does not easily enter the test chamber. For this reason, the environmental test apparatus of the present invention is unlikely to cause icing or condensation inside or near the through hole.
The environmental test apparatus of the present invention can be used as a combined test apparatus by combining with an external force applying apparatus such as a pulling apparatus. And this test apparatus is hard to produce icing and dew condensation, and can be used continuously for a long time.

It is a perspective view of the test device of an embodiment of the present invention, and is a perspective view in the state where the door of the environmental test device was closed. It is a perspective view of the test apparatus shown in FIG. 1, and is a perspective view in a state where the door of the environmental test apparatus is opened. It is a cross-sectional perspective view of the environmental test apparatus main body of the test apparatus shown in FIG. It is a disassembled perspective view of the environmental test apparatus main body of the test apparatus shown in FIG. It is a disassembled perspective view of the environmental test apparatus main body of the test apparatus shown in FIG. 1, Comprising: The state which faced | matched the block body and the sealing member is shown. It is a disassembled perspective view of a sealing member, and a perspective view of a block body. (A) is the longitudinal cross-sectional view of the environmental test apparatus main body of the test apparatus shown in FIG. 1, and sectional drawing of the air conditioner part connected to an environmental test apparatus main body, (b) is the AA cross-sectional view. (C) is the BB sectional drawing. It is sectional drawing which cut | disconnected the environmental test apparatus main body of the test apparatus shown in FIG. 1 from the direction different from FIG. It is sectional drawing from the same direction as FIG. 7 in the state which put the grip into the environmental test apparatus main body of the test apparatus shown in FIG. It is sectional drawing from the same direction as FIG. 8 in the state which put the grip into the environmental test apparatus main body of the test apparatus shown in FIG. (A) (b) is a perspective view of a block body, (c) is AA sectional drawing of (a). It is an expanded sectional view of the top | upper surface part of the environmental test apparatus main body of the test apparatus shown in FIG. 1, and shows the flow of the air at the time of making the inside of a space | gap part into a negative pressure. It is an expanded sectional view of the top | upper surface part of the environmental test apparatus main body of the test apparatus shown in FIG. 1, and shows the flow of air when the inside of a space | gap part is made into a positive pressure. It is sectional drawing of the test apparatus of further another embodiment of this invention. It is a perspective view of the testing apparatus of further another embodiment of this invention. (A) thru | or (d) is a top view of the block body which shows the modification of a block body. It is a perspective view of the sealing member vicinity of the test apparatus of further another embodiment of this invention. It is a perspective view which shows the modification of a block body. BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the environmental test apparatus which inventors made as an experiment, (a) is the top view, (b) is the sectional drawing. It is explanatory drawing which shows the behavior at the time of using the environmental test apparatus of FIG. 19 in a high temperature environment.

Embodiments of the present invention will be further described below.
The test apparatus 1 of this embodiment is a composite test apparatus, and more specifically, a composite type tensile test apparatus. The test apparatus 1 of the present invention is suitable for performing a material test in a high humidity environment.
The test apparatus 1 according to this embodiment includes an environmental test apparatus 2 and an external force applying apparatus 3. Moreover, the environmental test apparatus 2 employ | adopted by this embodiment isolate | separates the environmental test apparatus main body 5 and the air conditioner part 6, and is an independent apparatus, respectively.
Moreover, the test apparatus 1 of this embodiment has the external force provision apparatus mounting base 130 and the thermostat stand 131 as auxiliary equipment.

The environmental test apparatus main body 5 of the environmental test apparatus 2 is a casing covered with a heat insulating wall 10 as shown in FIG. 3, and includes a main body side casing portion 7 and a door 9.
The main body side housing part 7 has a top wall 11, a bottom wall 12, a back wall 13, left and right side walls 15 and 16, and the front side is open. And the door 9 mentioned above is attached to the opening part of the main body side housing | casing part 7. FIG.
Therefore, by closing the door 9, the main body side casing portion 7 becomes a closed space.
The environment test apparatus main body 5 has a heat insulating region 17 surrounded by the top wall 11, the bottom wall 12, the back wall 13, the left and right side walls 15 and 16, and the door 9.

The body-side casing section 7 of the environmental test apparatus body 5 is provided with four parts communicating with the outside.
That is, rod insertion through holes 20 and 21 are provided in the top wall 11 and the bottom wall 12.
The back wall 13 is provided with an air discharge side through hole 22 and an air suction side through hole 23.

The rod insertion through hole 20 provided in the top wall 11 is a hole having a circular cross-sectional shape as shown in FIGS. The rod insertion through hole 20 is provided in the top wall 11 and extends in the vertical direction, and its axis substantially coincides with the center line of the test chamber 8.
The rod insertion through hole 20 penetrates the top wall 11, and one opening is opened in the heat insulating region 17. The other opening of the rod insertion through hole 20 is open to the outside of the environmental test apparatus main body 5.
That is, the rod insertion through hole 20 has a heat insulation region side opening 18 and an external side opening 26.

  In this embodiment, the top wall 11 and the bottom wall 12 are provided with cavities 45 and 46 as shown in FIGS. 7 and 8, and the block body 100 is built in the cavities 45 and 46. A through hole 105 is provided. The through hole 105 functions as the rod insertion through holes 20 and 21.

  As will be described later, the inner walls of the hollow portions 45 and 46 are in contact with the block body 100 to ensure airtightness. Therefore, the through-hole 105 provided in the block body 100 is an opening that substantially penetrates the test chamber 8, and communicates the inside of the heat insulating region 17 and the outside of the environmental test apparatus 2.

Since the structure of the cavity 45 and the block body 100 of the top wall 11 and the structure of the cavity 46 and the block body 100 of the bottom wall 12 are the same, the structure on the top wall 11 side will be described as a representative.
In the present embodiment, as shown in FIGS. 4 and 5, the cavity 45 covers the notch 52 and the opening of the notch 52 provided in the body-side casing 7 of the environmental test apparatus body 5. It is formed by the sealing member 31.

  That is, the end portion of the top wall 11 of the main body side housing portion 7 has a notch portion 52 as shown in FIGS. The cutout portion 52 is obtained by removing the heat insulating wall 10, and the planar shape is a trapezoid as shown in FIG. 4.

When attention is paid to the cutout portion 52 of the main body side housing portion 7, the cutout portion 52 has a cave shape extending from the end side of the top wall 11 toward the back side. The planar shape of the cave-like portion is a trapezoid as described above.
That is, when the top wall 11 is viewed in plan, it has a trapezoidal shape with one end open, and has a back wall 158 and left and right side walls 160, 161 as shown in FIG.
The back wall 158 is parallel to the end surface 162 of the main body side housing unit 7. On the other hand, the left and right side walls 160 and 161 are not perpendicular to the back wall 158 but are inclined. The inclination angles of the left and right side walls 160 and 161 are equal.
In the present embodiment, the width of the back wall 158 is narrower than the width of the opening of the notch 52. That is, the planar shape of the notch 52 is gradually tapered from the opening side toward the back side, and has a substantially tapered shape.

  A pipe 28 is embedded in the heat insulating wall 10 of the main body side casing 7, and the notch 52 and the outside of the main body side casing 7 are connected by the pipe 28. As shown in FIG. 7, the pipe 28 is connected to a gas-liquid separator 53 and a negative pressure generator 58 installed outside. The negative pressure generator 58 is a decompressor, specifically a blower, and the suction side of the blower is connected to the pipe 28.

A cover plate 56 is provided on the inner and outer surfaces (upper and lower surfaces) of the test chamber 8 of the notch 52. More specifically, the cutout portion 52 at the end of the top wall 11 of the main body side housing 7 has a cover plate 56a covering the upper surface side and a cover plate 56b covering the lower surface side as shown in FIG. .
A semicircular cutout 57 is provided on the end sides of the upper and lower cover plates 56a and 56b.

On the other hand, as shown in FIG. 4, the sealing member 31 has an insertion portion 37 to be inserted into the cutout portion 52, and cover plates 38 a and 38 b are mounted on both surfaces thereof.
The size and shape of the insertion portion 37 is a shape that fits completely into the cutout portion 52 of the top wall 11 of the main body side housing portion 7, and the width and height are equal to the cutout portion 52. However, since the depth is shorter than the depth of the cutout portion 52, the insertion portion 37 does not reach the back wall 158 of the cutout portion 52.

The sealing member 31 has a shape as shown in FIG. 4, and is formed by joining the members shown in FIG.
As shown in FIG. 6, the sealing member 31 is provided with the cover plates 38a and 38b on the upper and lower surfaces of the insertion body 163, and the sealing members 165a and 165b bonded to the left and right side surfaces 170a and 170b.
The insertion body 163 is made of resin or metal, and the planar shape is a trapezoid. That is, the insertion body 163 has upper and lower surfaces 166a and 166b, a front surface 167, a rear surface 168, and left and right side surfaces 170a and 170b.
The upper and lower surfaces 166a and 166b of the insertion body 163 are parallel, and the front surface 167 and the rear surface 168 are also parallel.
However, the left and right side surfaces 170a and 170b are not parallel, but are inclined surfaces inclined in a tapered shape. That is, the width of the front surface 167 is narrower than the width of the rear surface 168. In other words, the planar shape of the insertion main body 163 has a gradually narrowing width from the rear surface 168 side toward the front surface 167 side, and has a substantially tapered shape.
The inclination angles of the left and right side surfaces 170a and 170b of the insertion body 163 are the same as the inclination angles of the left and right side walls 160 and 161 of the cutout portion 52, but the insertion body 163 is compared with the vicinity of the opening of the cutout portion 52. Slightly small.

The seal members 165a and 165b are made of a cushioning resin and are attached to the left and right side surfaces 170a and 170b of the insertion body 163.
The front shape of the seal members 165a and 165b is a substantially “U” shape, and is a frame shape with one side open.
The front shape of the sealing members 165a and 165b is a shape having an upper side portion 171, a lower side portion 172, and a vertical portion 173 that connects one end sides of both as shown in FIG.
The seal members 165a and 165b are surrounded on three sides by the above-described upper side portion 171, lower side portion 172, and vertical portion 173, and the center portion is open.

The seal members 165a and 165b are bonded along the edges of the left and right side surfaces 170a and 170b of the insertion body 163. Specifically, the upper sides 171 of the sealing members 165a and 165b are the left and right side surfaces 170a and 170b of the insertion body 163 and at the boundary with the upper surface 166a, and the lower side portion 172 is the left and right sides 170a and 170b of the insertion body 163. At the boundary with the lower surface 166b. The vertical portions 173 of the seal members 165 a and 165 b are bonded to the left and right side surfaces 170 a and 170 b of the insertion body 163 and to the boundary portion with the rear surface 168.
Seal members 165a and 165b do not exist at the boundary between the insertion body 163 and the front surface 167 on the left and right side surfaces 170a and 170b, and the portions are open.
Therefore, on the side surfaces of the left and right side surfaces 170a and 170b of the insertion body 163, there are groove-shaped gaps 180 that are surrounded on three sides by the seal members 165a and 165b and the front side is open.

  The shapes of the cover plates 38a and 38b are the same as the cover plates 56a and 56b provided in the notch 52. That is, semicircular cutouts 57 are similarly provided on the end sides of the upper and lower cover plates 38 a and 38 b of the sealing member 31.

In the sealing member 31, the insertion portion 37 is inserted into the cutout portion 52 of the top wall 11 of the main body side housing portion 7. A hollow portion 45 having a trapezoidal planar shape is formed between the inner surface of the cutout portion 52 and the front surface 167 of the insertion portion 37. Note that the side surface of the insertion portion 37 of the sealing member 31 and the inner wall of the cutout portion 52 are in close contact with each other, and airtightness is ensured between them. More precisely, the seal members 165a and 165b of the insertion portion 37 are in close contact with the left and right side walls 160 and 161 of the cutout portion 52 in a compressed state.
Further, the semicircular cutouts 57 provided on the end sides of the cover plates 56a and 56b and the semicircular cutouts 57 provided on the cover plates 38a and 38b of the sealing member 31 coincide with each other to form a circle. .

  The hollow portion 45 of the top wall 11 has been described above, but the same applies to the hollow portion 46 of the bottom wall 12.

Next, the block body 100 will be described. The block body 100 is a foam made of a relatively soft resin such as a silicon resin. The block body 100 has a heat insulating effect.
As for the shape of the block body 100, the planar shape is a trapezoid as shown in FIG.
More specifically, the block body 100 has upper and lower surfaces 101a and 101b, a front surface 176, a rear surface 177, and left and right side surfaces 178a and 178b.
The upper and lower surfaces 101a and 101b of the block body 100 are parallel, and the front surface 176 and the rear surface 177 are also parallel.

However, the left and right side surfaces 178a and 178b are not parallel but inclined in a tapered shape. That is, the width of the front surface 176 is narrower than the width of the rear surface 177. That is, the planar shape of the block body 100 is gradually tapered from the rear surface 177 side toward the front surface 176 side, and has a substantially tapered shape.
The inclination angles of the left and right side surfaces 178a and 178b of the block body 100 are the same as the inclination angle of the left and right side walls 160 and 161 of the notch 52 and the inclination angle of the left and right side surfaces 170a and 170b of the insertion body 163.
The inclination angle is desirably 5 degrees or more. More desirably, it is 5 degrees or more and 20 degrees or less. More desirably, it is not less than 8 degrees and less than 15 degrees.

  In the present embodiment, ribs 102 are formed on the left and right side surfaces 178a and 178b of the block body 100 and in the vicinity of the upper and lower surfaces 101a and 101b.

The opposed upper and lower surfaces 101 a and 101 b of the block body 100 are a single plane including the rib 102 described above. The cross-sectional shape of the rib 102 is a quadrangle.
The upper and lower surfaces 101a and 101b of the block body 100 are trapezoidal as described above, and the ribs 102 are provided on the four sides of the trapezoidal upper and lower surfaces 101a and 101b.
Accordingly, the side surface of the block body 100 has a recess 103 surrounded by the ribs 102 of the upper and lower surfaces 101a and 101b.

The width of the rear surface 177 of the block body 100 (full width including the rib 102) is equal to the width of the front end portion of the sealing member 31 (the total width of the front surface 167 of the insertion body 163 and the seal members 165a and 165b).
The width of the front surface 176 of the block body 100 (full width including the ribs 102) is equal to the width of the back wall 158 of the notch 52 described above.

  The block body 100 is provided with a through-hole 105 that penetrates the upper and lower surfaces 101a and 101b. In this embodiment, the through-hole 105 penetrates the center of the block body 100 up and down.

The cross-sectional shape of the through hole 105 is similar to the cross-sectional shape of rods 76 and 78 described later, and is circular. The shape of the through-hole 105 should be formed to match that to be inserted, and if the cross-sectional shape of the inserted through-hole is rectangular, the planar cross-sectional shape of the through-hole 105 is made to be rectangular according to this.
As shown in FIG. 11C, the through hole 105 penetrating vertically is slightly narrower than other portions.

In the present embodiment, a through hole (communication hole) 106 is also provided on the side surface of the block body 100. In the present embodiment, two through-holes 106 penetrating the side surface are provided side by side. The cross-sectional shape of the through hole 106 is circular.
The through hole 106 penetrating the side surface is orthogonal to the through hole 105 penetrating vertically. That is, the through hole 106 penetrating the side surface is a communication hole communicating with the through hole 105 penetrating vertically inside the block body 100.
Therefore, the through hole 105 penetrating vertically communicates with the concave portion 103 on the side surface of the block body 100 through the through hole 106 penetrating the side surface. Note that the through hole 106 penetrating the side surface may not be orthogonal to the through hole 105.

Further, a cut 107 is provided on one side surface of the block body 100. The cut 107 is provided in parallel with the through-hole 105 penetrating vertically, and both ends reach the upper and lower surfaces 101 a and 101 b of the block body 100.
The depth of the cut 107 is a depth reaching the through hole 105 penetrating vertically.

As described above, one block body 100 is provided in each of the hollow portion 45 of the top wall 11 and the hollow portion 46 of the bottom wall 12.
That is, the main body side housing portion 7 includes a hollow portion 45 having a trapezoidal planar shape surrounded by the back wall 158 of the cutout portion 52, a part of the left and right side walls 160 and 161, and the front end portion of the sealing member 31. 46, and one block body 100 is arranged in each of the hollow portions 45, 46.

  When attention is paid to the hollow portion 45 of the top wall 11, the upper and lower surfaces 101 a and 101 b of the block body 100 are in contact with the upper and lower surfaces of the hollow portion 45. More specifically, the upper surface 101a of the block body 100 is in contact with both the upper cover plate 56a on the main body side housing 7 side and the upper cover plate 38a on the sealing member 31 side. The lower surface 101b of the block body 100 is in contact with both the lower cover plate 56b on the main body side housing 7 side and the lower cover plate 38b on the sealing member 31 side.

As described above, the inclination angles of the left and right side surfaces 178a and 178b of the block body 100 are equal to the inclination angles of the left and right side surfaces 170a and 170b of the insertion body 163 of the sealing member 31, and the width of the rear surface 177 of the block body 100 is the sealing member. Since the width of the front end portion of the insertion portion 37 of 31 is the same, when the block body 100 and the sealing member 31 are combined, the block body 100 and the insertion portion 37 become one trapezoidal shape as shown in FIG.
And the trapezoid shape which combined both corresponds with the shape of the cavity part 45 (notch part 52). Therefore, in the hollow portion 45, the front surface 176 of the block body 100 is in contact with and in contact with the back wall 158 of the hollow portion 45.

In addition, one tapered inclined surface is formed by the left and right side surfaces 178 a and 178 b of the block body 100 and the left and right side surfaces 170 a and 170 b of the sealing member 31 (insertion portion 37), and the tapered inclined surface is formed in the cavity 45. The tapered inclined surfaces formed by the left and right side walls 160 and 161 are in contact with each other.
Further, the rear surface 177 of the block body 100 is in contact with and in contact with the front end portion of the insertion portion 37 of the blocking member 31.

Further, when the block body 100 and the insertion portion 37 of the sealing member 31 are combined as shown in FIG. 5, the gap 180 formed by the concave portion 103 formed by the rib 102 of the block body 100 and the seal members 165 a and 165 b of the insertion portion 37. Communicate.
The ribs 102 of the block body 100 are in contact with the side wall 110 (including the end surface of the insertion portion 37) inside the cavity 45. Therefore, there is a gap 108 between the side wall 110 inside the cavity 45 and the recess 103 on the side surface of the block body 100 as shown in FIG. The gap 108 surrounds the entire circumference of the side surface of the block body 100 in an annular shape.
As described above, the cross-sectional shape of the rib 102 is a quadrangle, the tip of the rib 102 is pressed against the side wall 110 inside the cavity 45, and the recess 103 (the gap 108) on the side surface of the block body 100 is the side wall of the cavity 45. Blocked by 110 and shielded.

  In addition, since the upper end side and the lower end side of the hollow portion 45 are sealed in an annular shape by the ribs 102, airtightness inside and outside the test chamber 8 is ensured at the inner peripheral surface portion of the hollow portion 45. That is, the block body 100 is in the hollow portion 45, and the ribs 102 surrounding the upper end side and the lower end side of the block body 100 are in contact with the left and right side walls 160, 161 of the hollow portion 45. Airtightness inside and outside the test chamber 8 is ensured.

Further, the sealing members 165a and 165b are in contact with the sealing member 31 and the left and right side walls 160 and 161 of the cavity 45, and the sealing member 31 is also secured to the inside and outside of the test chamber 8.
Therefore, theoretically, only the through-hole 105 penetrating the block body 100 vertically communicates the inside and outside of the test chamber 8.

  The same applies to the bottom wall 12, and the upper end side and the lower end side of the cavity portion 46 are closed in an annular shape by the ribs 102, so that airtightness inside and outside the test chamber 8 is secured at the inner peripheral surface portion of the cavity portion 46. The only thing that communicates inside and outside the test chamber 8 is the through-hole 105 that penetrates the block body 100 up and down.

Next, the air discharge side through hole 22 and the air suction side through hole 23 formed in the back wall 13 will be described.
The air discharge side through hole 22 and the air suction side through hole 23 are holes through which air flows, and both are formed by inserting large-diameter pipes 38 and 39 through the back wall 13.
Both the pipes 38 and 39 penetrate the back wall 13. The open ends 40 and 41 on the heat insulating region 17 side of the tubes 38 and 39 are on the same plane as the back wall 13.
On the other hand, the open ends 43 and 44 on the outside of the tubes 38 and 39 protrude to the back side of the environmental test apparatus main body 5.

The air discharge side through-hole 22 is provided in the back wall 13 and extends in the horizontal direction, and its axis is substantially orthogonal to the center line of the test chamber 8 described later.
The air suction side through hole 23 is provided at a position shifted directly below the air discharge side through hole 22.

Next, the internal structure of the heat insulation region 17 will be described. A partition member 48 is provided inside the heat insulating region 17 and is divided into a test chamber 8 and a flow path forming portion 55.
The partition member 48 has a plate shape.
The partition member 48 is parallel to the back wall 13 of the heat insulating region 17 and is installed at a certain distance from the inner wall of the heat insulating region 17.
The partition member 48 is provided with a number of small holes 60 for ventilation. And the area | region in which the small hole 60 was provided, and the air discharge side through-hole 22 are connected by the connection duct 61. FIG. The connection duct 61 has a tapered outer appearance, the inner diameter of the portion connected to the air discharge side through hole 22 is small, and the inner diameter of the side connected to the partition member 48 is large.
Since the air discharge side through hole 22 and the region where the small hole 60 of the partition member 48 is provided are connected by the connection duct 61, the air discharge side through hole 22 is connected to the small hole 60 of the partition member 48. Communicate only with.

Next, the air conditioner unit 6 will be described. As shown in FIG. 7, the air conditioner unit 6 has a series of air flow paths 63 therein. The air flow path 63 is covered with a heat insulating wall 64.
In the present embodiment, the lower opening in the drawing is the air return port 65, and the upper opening functions as the air outlet 66. In the air flow path 63, a humidifier 59, a precooler 67, a main cooler 68, and a heater 70 are installed in order from the air return port 65. A blower 71 is provided between the heater 70 and the air outlet 66.
The air conditioner unit 6 introduces air from the air return port 65, passes the humidifier 59, the precooler 67, the main cooler 68, and the heater 70 to adjust the air to a predetermined temperature and humidity, and then from the air outlet 66. To be discharged. As described above, the air conditioner unit 6 employed in the present embodiment has a humidifying ability and can create a high humidity environment.

Next, the external force applying device 3 will be described.
The external force imparting device 3 is a tensile tester. As shown in FIGS. 1 and 2, the external force imparting device 3 has a base 72 and a portal frame 73.
The portal frame 73 has a guide rail (not shown), and an elevating bar (driving unit) 75 is engaged with the guide rail of the portal frame 73.
An upper rod 76 is provided at the lower part of the elevating bar 75, and an upper gripping tool (holding portion) 77 is provided at the tip of the upper rod 76. That is, an upper grip 77 as a holding portion is attached to an elevating bar 75 as a driving portion via an upper rod 76.

Further, the base portion 72 is provided with a lower rod 78, and a lower gripping tool (holding portion) 79 is provided at the tip of the lower rod 78.
The external force imparting device 3 includes a moving device for moving the upper gripping tool 77 upward, an extension meter for detecting the amount of movement of the gripping tool, and a load meter for detecting the tensile load, as in a known tensile testing machine. (Not shown).

Next, auxiliary equipment will be described. The test apparatus 1 according to the present embodiment includes an external force applying device mounting table 130 and a thermostatic chamber frame 131 as auxiliary devices.
The external force applying device mounting table 130 is a mere table, and includes a mounting plate 132 on which the external force applying device 3 is mounted and a leg portion 133 that supports the mounting plate 132 in a hollow state.

The thermostat base 131 includes a pedestal portion 135 and a telescopic guide 136. The pedestal 135 is a substantially cubic body and has a certain amount of weight.
The telescopic guide 136 is disposed on the upper surface of the pedestal portion 135, and two telescopic rods 137a and 137b are provided in parallel. The telescopic rods 137a and 137b have a fixed side member and a movable side member, and the movable side portion is movable in a linear direction with respect to the fixed side member. Therefore, the extension rods 137a and 137b can be extended and contracted by moving the movable side portion.
In the telescopic guide 136, the fixed side members of the telescopic rods 137 a and 137 b are fixed to the upper surface of the pedestal portion 135. And if the full length of the expansion-contraction hooks 137a and 137b is extended, a movable side part will protrude from the base part 135 in the shape of a cantilever.

Next, the relationship between each member which comprises the test apparatus 1 is demonstrated.
As described above, the test apparatus 1 according to the present embodiment is configured by the environmental test apparatus 2 and the external force applying apparatus 3, and the environmental test apparatus 2 is configured by the environmental test apparatus main body 5 and the air conditioner unit 6. Yes.
The environmental test apparatus main body 5 and the air conditioner unit 6 constituting the environmental test apparatus 2 are connected by two ducts 80 and 81 as shown in FIG.
That is, the pipe 39 constituting the air suction side through hole 23 of the environmental test apparatus main body 5 and the air return port 65 of the air conditioner unit 6 are connected by the return side duct 81.
Further, the pipe 38 constituting the air discharge side through hole 22 of the environmental test apparatus main body 5 and the air outlet 66 of the air conditioner unit 6 are connected by the forward duct 80.
Therefore, the heat insulation region 17 of the environmental test apparatus main body 5 and the air flow path 63 of the air conditioner unit 6 constitute a series of circulation flow paths.
Further, heat insulating materials 150 and 151 are respectively applied to the air discharge side duct including the forward side duct 80 and the air suction side duct including the return side duct 81, and energy loss is reduced.

As shown in FIGS. 1 and 2, the external force applying device 3 is placed on a mounting plate 132 of the external force applying device mounting table 130.
The environmental test apparatus main body 5 of the environmental test apparatus 2 is installed in a space surrounded by the portal frame 73 of the external force applying apparatus 3.
More specifically, as shown in FIGS. 1 and 2, a thermostatic chamber pedestal 131 is disposed on the back side of the external force applying device 3, and the environmental test apparatus is operated by the movable side portion of the telescopic guide 136 of the thermostatic chamber pedestal 131. The main body 5 is supported in a state of protruding from the pedestal portion 135 of the thermostatic chamber mount 131. The environmental test apparatus main body 5 is supported in a cantilever manner by a telescopic guide 136 of the thermostatic chamber mount 131 and is inserted into the portal frame 73 of the external force applying apparatus 3.
The environmental test apparatus main body 5 is supported in a hollow manner by the thermostatic chamber pedestal 131 and is disposed in the portal frame 73 of the external force applying device 3, and is not in contact with the base portion 72 of the external force applying device 3.

The upper rod 76 of the external force imparting device 3 passes through the rod insertion through hole 20 of the environmental test apparatus main body 5, and the upper gripping tool 77 at the tip reaches the center of the test chamber 8.
More specifically, the upper rod 76 is inserted into the rod insertion through-hole 20 of the environmental test apparatus main body 5, and the upper gripping tool 77 reaches the vicinity of the height of the small hole 60 of the partition member 48.

Further, the lower rod 78 of the external force imparting device 3 passes through the rod insertion through hole 21 of the environmental test apparatus main body 5, and the lower gripping tool 79 at the tip reaches the center of the test chamber 8.
More specifically, the lower rod 78 passes through the rod insertion through hole 21 of the environmental test apparatus main body 5, and the lower gripping tool 79 reaches the vicinity of the height of the small hole 60 of the partition member 48.

  The block body 100 employed in the present embodiment is provided with a cut 107. However, when the rods 76 and 78 are pressed against the cut 107 of the block body 100 and the rods 76 and 78 are pushed into the cut 107, the block 100 is blocked. The cut 107 is pushed and expanded by the elasticity of the body 100, and the rods 76 and 78 cut into the cut 107 and enter the block body 100. Finally, the rods 76 and 78 reach the through hole 105 penetrating the block body 100 up and down, and the rods 76 and 78 can be inserted into the through hole 105.

In the present embodiment, the upper rod 76 and the lower rod 78 communicate with the heat insulating wall 10 of the environmental test apparatus main body 5. That is, the rods 76 and 78 are inserted into the through holes 20 and 21 (the through holes 105 of the block body 100) that communicate with the heat insulating wall 10 of the environmental test apparatus main body 5. Therefore, as described above, the planar cross-sectional shape of the through hole 105 of the block body 100 is similar to the cross-sectional shape of the rods 76 and 78.
As described above, the opening of the through hole 105 of the block body 100 is slightly narrower than other parts.
The gap between the inner wall of the through-hole 105 having the smallest area and the rods 76 and 78 is 0.5 mm to 3 mm on average, and more preferably 1 mm to 2 mm on average.
Further, the area of the gap between the inner wall of the through hole 105 having the smallest area and the rods 76 and 78 is not more than three times the cross-sectional area of the inserted object (rods 76 and 78 in this embodiment). Is desirable. More desirably, it is 2 times or less. More desirably, it is 1 time or less.

  In the present embodiment, both ends of the sample (test object) are held by the upper gripping tool 77 and the lower gripping tool 79. Therefore, the sample is placed in the test chamber 8 and particularly in a region between the upper gripping tool 77 and the lower gripping tool 79. Therefore, in the test apparatus 1 of the present embodiment, the area between the upper gripping tool 77 and the lower gripping tool 79 becomes the DUT installation area 115.

  Further, a gas-liquid separator 53 and a negative pressure generator 58 are connected to a pipe (gas supply unit) 28 embedded in the top wall 11 and the bottom wall 12 of the environmental test apparatus main body 5.

Next, the operation of the test apparatus 1 of this embodiment will be described.
When performing a tensile test using the test apparatus 1 of this embodiment, a sample (test object) is formed into a predetermined shape. Then, the door 9 of the environmental test apparatus main body 5 is opened, and both ends of the sample are gripped by the upper gripping tool 77 and the lower gripping tool 79. Then, the door 9 of the environmental test apparatus main body 5 is closed.
Thereafter, the negative pressure generator 58 is activated.
In addition, the air conditioner unit 6 is activated to supply air adjusted to a predetermined temperature to the test chamber 8, and the inside of the test chamber 8 is maintained in a predetermined temperature environment.
Then, the external force imparting device 3 is activated, the upper rod 76 is raised at a constant speed, a tensile load is applied to the sample (test object), and it breaks. Then, record the relationship between the elongation and load of the sample.

  The air flow of the environmental test apparatus 2 (the environmental test apparatus main body 5 and the air conditioner unit 6) during the test is as shown by the arrows in FIG. That is, by starting the air blower 71 of the air conditioner unit 6, the air in the heat insulating region 17 is introduced into the air conditioner unit 6 from the air suction side through hole 23 of the environmental test apparatus body 5 via the return side duct 81. . And the air introduce | transduced into the air conditioner part 6 flows through the air flow path 63 of the air conditioner part 6, and is adjusted to desired temperature in the meantime. Then, the adjusted air is introduced into the air discharge side through hole 22 of the environmental test apparatus main body 5 via the forward duct 80.

  Here, the air discharge side through-hole 22 is directly connected to the portion where the small hole 60 of the partition member 48 is formed by the connection duct 61. That is, the air discharge side through hole 22 is connected to the small hole 60 via the connection duct 61. Therefore, the air supplied from the air conditioner unit 6 to the environmental test apparatus main body 5 is supplied into the test chamber 8 only from the small holes 60 provided in the partition member 48.

Since air is successively supplied from the small holes 60 provided in the partition member 48 into the test chamber 8, the DUT installation region 115 in the test chamber 8 becomes a high-pressure atmosphere. On the other hand, the periphery of the through hole 105 on the downstream side tends to be lower in pressure than the periphery of the DUT installation region 115.
Therefore, the periphery of the through hole 105 in the test chamber 8 has a low pressure tendency, and it is difficult for air to leak outward from the through hole 105, and the DUT installation region 115 is caused by disturbance from the periphery of the through hole 105 due to the air flow. Temperature accuracy is good.

  Further, in the present embodiment, the opening area of the through hole 105 communicating with the inside and outside of the test chamber 8 is only an opening area that allows the rods 76 and 78 to be inserted. Further, since the gap between the inner wall of the through hole 105 and the rods 76 and 78 is set small, the actual opening area is extremely small, and the air in the test chamber 8 is difficult to leak from the through hole 105.

In addition, in the present embodiment, the pipe 28 is connected to the cavities 45 and 46 in which the block body 100 is accommodated, and the other end of the pipe 28 is connected to the negative pressure generator 58, and the inside of the cavities 45 and 46. Is being aspirated.
Therefore, the gap 108 between the side wall 110 inside the hollow portions 45 and 46 and the concave portion 103 on the side surface of the block body 100 tends to be negative pressure, and the hollow portions 45 and 46 and the cover plates 56a, 56b, 38a, and 38b The air in the test chamber 8 is prevented from leaking from the gap.
Further, in this embodiment, the concave portion 103 on the side surface of the block body 100 and the gap 180 surrounded by the sealing members 165a and 165b on the side surface of the insertion portion of the sealing member 31 communicate with each other. A negative pressure tendency also occurs between the side surfaces and the side walls 110 inside the hollow portions 45 and 46. Therefore, air is prevented from leaking from the periphery of the sealing member 31.

Further, since the horizontal through hole 106 provided on the side surface of the block body 100 is connected to the through hole 105 communicating with the inside and outside of the test chamber 8, the inside of the through hole 105 communicating with the inside and outside of the test chamber 8 is negative pressure. This tends to prevent the air in the test chamber 8 from leaking from the through hole 105.
Therefore, in the present embodiment, there is a low concern that air in the test chamber 8 leaks from the gaps between the hollow portions 45 and 46 and the cover plates 56a, 56b, 38a, and 38b or from the through hole 105.
Even if the air in the test chamber 8 is hot and humid, there is little concern that the internal high-temperature and high-humidity air leaks and dew condensation occurs.
Thus, the concern that air in the test chamber 8 leaks from the hollow portions 45 and 45 and the through hole 105 is low.

  Further, the upper rod 76 and the lower rod 78 are not in direct contact with the rod insertion through holes 20 and 21. Therefore, during the tensile test, the upper rod 76 or the lower rod 78 moves up or down, but resistance due to contact does not occur, and the load meter can accurately detect the tensile load applied to the sample. it can.

In the environmental test apparatus 2 of the present embodiment, the block body 100 is built in the hollow portions 45 and 46, and the through holes 105 provided in the block body 100 function as the rod insertion through holes 20 and 21.
Since the block body 100 is a resin such as silicon and is not a sheet metal, the end surface treatment is unnecessary, and is not performed in this embodiment. Therefore, the processing of the rod insertion through holes 20 and 21 is easy.

The environment in the test chamber 8 when performing a tensile test or the like is arbitrary, and may be a high temperature environment or a low temperature environment.
If the inside of the test chamber 8 is a high temperature environment, the temperature in the cavities 45 and 46 also rises and the block body 100 expands.
Here, in the present embodiment, the left and right side surfaces 178a and 178b of the block body 100 are inclined surfaces and have a tapered shape.
The left and right side walls 160 and 161 of the cavities 45 and 46 are also inclined surfaces and have a tapered shape, both of which have the same tapered shape, and the block body 100 is fitted in the cavities 45 and 46.
Therefore, when the block body 100 expands, the wedge effect is exhibited, and the surface of the block body 100 is pressed against the inner walls of the cavities 45 and 46. Therefore, the adhesion degree of the block body 100 and the cavity parts 45 and 46 increases more. Therefore, even if the air in the test chamber 8 is high temperature and high humidity, and the block body 100 expands, there is little concern that the internal high temperature and high humidity air leaks and causes condensation.
Therefore, there is little concern that air in the test chamber 8 leaks from the hollow portions 45 and 45 and the through hole 105.
In this embodiment, the gas-liquid separator 53 is provided in addition to the negative pressure generator 58, and the moisture is removed from the high-humidity air in the test chamber 8 and then released to the atmosphere. Is not required.

In the embodiment described above, the air in the test chamber 8 is prevented from leaking from the through hole 105 by causing the hollow portions 45 and 46 and the through hole 105 to have a negative pressure tendency. A dry gas such as nitrogen gas may be introduced into 105.
FIG. 13 illustrates a gas flow when nitrogen gas is introduced into the cavities 45 and 46. Nitrogen gas enters the gap 108 between the side wall 110 inside the hollow portions 45 and 46 and the concave portion 103 on the side surface of the block body 100, and between the block body 100 and the side wall 110 inside the hollow portions 45 and 46. Is filled with nitrogen gas, and a blocking layer made of nitrogen gas is formed between the block body 100 and the left and right side walls 160, 161 inside the hollow portions 45, 46.
Moreover, since the above-mentioned space | gap 108 is connected with the space | gap 180 comprised by the sealing members 165a and 165b of the sealing member 31, the said space | gap 180 is also satisfy | filled with nitrogen gas. Therefore, the space between the sealing member 31 and the inner side walls 110 of the hollow portions 45 and 46 is also filled with nitrogen gas, and a blocking layer made of nitrogen gas is also formed between the sealing member 31 and the inner side walls 110 of the hollow portions 45 and 46. create.
Therefore, the air in the test chamber 8 is prevented from leaking from the gaps between the block body 100 and the sealing member 31 and the cover plates 56a, 56b, 38a, 38b.
Further, the nitrogen gas flows through the through hole 106 of the block body 100 and enters the through hole 105 communicating vertically, flows around the entire circumference of the rods 76 and 78, and forms a barrier layer made of nitrogen gas around the through hole 105. .

Nitrogen gas enters the heat insulating region 17 from the opening on the test chamber 8 side of the through hole 105 communicating vertically. Here, the opening on the heat insulating region 17 side of the through hole 105 is on the downstream side in the air flow direction as compared with the periphery of the DUT as described above.
Therefore, all of the nitrogen gas that has entered the test chamber 8 from the through hole 105 flows toward the air suction side through hole 23 side of the environmental test apparatus main body 5 together with air, and does not hit the object to be tested. Don't give.

The space between the through hole 105 and the rods 76 and 78 is filled with nitrogen gas. Therefore, the air in the test chamber 8 is difficult to leak outside. Also, outside air is difficult to enter the test chamber 8.
Therefore, even if the air in the test chamber 8 is at a very low temperature, the air in the test chamber 8 is not in direct contact with the outside air, and the outside air is rarely cooled. For this reason, water vapor in the outside air is hardly condensed, and condensation and icing are unlikely to occur. Further, since nitrogen gas overflows around the outside opening of the through-hole 105 little by little, the outside opening becomes a low dew point gas atmosphere, and condensation and icing are unlikely to occur.

In the embodiment described above, the environmental test apparatus 2 is an independent apparatus in which the environmental test apparatus main body 5 and the air conditioner unit 6 are separated. However, the present invention is not limited to this configuration, and employs an environmental test apparatus 82 in which an air conditioner unit 85 is built in one heat insulating casing 83, as in the test apparatus 90 shown in FIG. May be.
In the environmental test apparatus 82 employed in the test apparatus 90 illustrated in FIG. 14, a heat insulating region 84 is formed by the heat insulating housing 83. The inside of the heat insulating housing 83 is divided into an air conditioner unit 85 and a test chamber 91. The air conditioner unit 85 is provided with a humidifier 86, a cooler 87, a heater 88, and a blower 89.
The discharge port of the blower 89 is open in the test chamber 91.

  Also in the test apparatus 90 of the present embodiment, rod insertion through holes 20 and 21 are provided in the top wall 120 and the bottom wall 121 of the heat insulating casing 83 of the environmental test apparatus 82. The shapes and structures of the rod insertion through holes 20 and 21 are the same as those of the above-described embodiment, the block body 100 is built in the hollow portions 45 and 46, and the through hole 105 is provided in the block body 100. The through hole 105 functions as the rod insertion through holes 20 and 21.

  In the above-described embodiment, an example in which two through holes 20 and 21 through which the rods 76 and 78 are inserted is provided in the upper and lower directions, but the through holes may be provided only in either the top wall or the bottom wall. Good. A through hole may be provided in the side wall. Moreover, you may have three or more through-holes.

In the above embodiment, the upper gripping tool 77 and the lower gripping tool 79 are arranged in the test chamber, and the rods 76 and 78 are inserted through the through holes.
However, the present invention is not limited to this configuration, and an upper grip 77 and a lower grip 79 are arranged outside the test chamber as in the test apparatus 200 shown in FIG. A member that extends a part of may be inserted through the through hole.

In the embodiment described above, the planar shape of the block body 100 is a trapezoid. However, the shape is not limited to this shape of the present invention, and at least one of the side surfaces may be an inclined surface.
That is, in the above-described embodiment, the planar shape of the block body 100 is a trapezoid as shown in FIG. 16A, but it may be a triangle as shown in FIG. 16B or a shape close thereto.
Further, as shown in FIG. 16C, there may be a part of an arc shape or a curved surface.
As shown in FIG. 16 (d), only one side may be inclined.

Moreover, it is good also as a structure which can replace the block body 100 easily,
FIG. 17 shows a configuration in which the blocking member 220 is detachable and the block body 100 can be removed.
In the environmental test apparatus shown in FIG. 17, the engagement member 221 is provided between the cover plates 38 a and 38 b of the sealing member 220 and the cover plates 56 a and 56 b on the main body side housing unit 7 side.
The engagement member 221 is a hook, and is an anti-tension member that has a hook-like engagement portion 223 at the tip and receives a tensile force.
The engaging member 221 is attached to the cover plates 38a and 38b of the blocking member 220 with pins 222, and can rotate in the horizontal direction.
On the other hand, the cover plates 56a and 56b on the main body side housing portion 7 side are provided with protrusions 225 that engage with the engaging portions 223 of the engaging members 221.
As shown in FIG. 17, by engaging the engaging portion 223 of the engaging member 221 with the protrusion 225 on the main body side housing portion 7 side, the sealing member 220 is attached to the main body side housing portion 7 so as not to be detached. The block body 100 can be fixed at a predetermined position.
On the other hand, when the engagement member 221 is disengaged, the sealing member 220 can be detached from the main body side housing portion 7, and the block body 100 can be removed.

  Each of the above-described embodiments is a composite type tensile tester, but the present invention is not limited to a tensile tester, and a compression tester, a shear tester, a hardness tester, an impact tester, etc. It can also be applied to.

The above-described two environmental test apparatuses 2 and 82 are examples having a function of adjusting the temperature environment and a function of adjusting the humidity environment.
The environmental test apparatus that can be employed in the present invention is not limited to the above-described one, and any apparatus that can adjust either or both of temperature and humidity may be used.

  In the embodiment described above, the block body 100 is a lump of resin, but may be divided into several pieces. For example, like the block body 140 of FIG. 18, you may be comprised by the two block pieces 141. FIG.

DESCRIPTION OF SYMBOLS 1 Test apparatus 2 Environmental test apparatus 3 External force provision apparatus 5 Environmental test apparatus main body 7 Main body side housing | casing part 8 Test chamber 10 Heat insulation wall 17 Heat insulation area | region 20, 21 Rod insertion through-hole 45, 46 Cavity part (gap part)
76 Upper rod (drive unit)
77 Upper grip (holding part)
78 Lower rod 79 Lower gripping tool (holding part)
82 Environmental Test Apparatus 100, 140 Block Body 102 Ribs 160, 161 Left and Right Side Walls (Inclined Surface)
163 Insertion body 165a, 165b Seal members 170a, 170b Left and right side surfaces (inclined surfaces)
178a, 178b Left and right side surfaces (inclined surfaces)
221 engaging member

Claims (8)

In an environmental test apparatus having a heat insulating region surrounded by a heat insulating wall, a test chamber that is a part or all of the heat insulating region and capable of forming a predetermined environment, and having a through hole that communicates the inside and outside of the heat insulating region. ,
A gap is formed in the heat insulating wall, a block body is built in the gap, and the through hole is provided in the block body.
At least one of the inner walls of the gap has an inclined surface, the block body also has an inclined surface, and the inclined surface of the inner wall of the gap is in contact with the inclined surface of the block body. apparatus. A main body portion having the heat insulating wall; and a sealing member, the heat insulating wall of the main body portion has a notch, and the opening that opens on an end surface side of the heat insulating wall of the notch portion covers the sealing member, The part surrounded by a part or all of the inner wall of the notch part and the blocking member is the gap part,
The environmental test apparatus according to claim 1, wherein the inclined surface is formed on an inner wall facing the notch, and the notch has a tapered shape whose area decreases from the opening side toward the back side.   The environmental test apparatus according to claim 2, wherein the sealing member has an insertion portion that enters into the cutout portion of the main body portion, and the insertion portion contacts the block body.   The engagement member for attaching the sealing member to the main body portion is provided, and the engagement member includes an anti-tension member that receives a tensile force by a force in a direction in which the sealing member separates from the main body portion. Environmental test equipment.   The environmental test apparatus according to claim 1, wherein the block body has a rib at an edge.   The environmental test apparatus according to claim 1, wherein the block body is provided with a communication hole that communicates the through hole with a side surface of the block body.   The environmental test apparatus according to claim 1, further comprising a dry gas supply source or a negative pressure generation source, wherein the gap is connected to the dry gas supply source or the negative pressure generation source. . An environmental test apparatus according to any one of claims 1 to 7 and an external force applying apparatus that applies an external force to a test object,
The external force applying device has a holding member that holds the DUT detachably directly or indirectly, and a drive unit that operates the holding member.
The drive unit of the external force applying device is outside the heat insulating region, and the holding member of the external force applying device is outside or inside the heat insulating region,
A test apparatus characterized in that the DUT in the test chamber and the holding member of the external force applying device are connected directly or indirectly through the through hole.

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