JP6528093B1 - Sample holder for weathering tester and weathering tester - Google Patents

Abstract

[PROBLEMS] To provide a sample holder for a weather resistance tester and a weather resistance tester capable of improving the reproducibility in a weather resistance test. A sample holder 13 is a holder which is disposed in a test tank 10 in a weather resistance tester 1 and holds a sample 9, and has sample attachment portions S1 to S3 on which the sample 9 is held. A base portion 130 and projecting portions 131L and 131R provided so as to project from the base portion 130 toward at least one side surface side (X-axis direction) of the sample attachment portions S1 to S3 are provided. [Selected figure] Figure 2

Description

  The present invention relates to a weathering tester for performing a weathering test, and a sample holder for the weathering tester used in such a weathering tester.

  The weather resistance tester artificially reproduces accelerated environmental conditions (acceleration test environment) by irradiating various samples with light from a light source (artificial light source) replacing the sun in addition to temperature and humidity conditions and water spray. This is an apparatus for evaluating the degree of deterioration of the sample (material) and the like (performing a weather resistance test) (see, for example, Patent Document 1).

  In such a weather resistance tester, as a light source, for example, a xenon arc lamp, a sunshine carbon arc lamp, an ultraviolet carbon arc lamp, a metal halide lamp, or the like as a light source in a test chamber capable of controlling temperature and humidity and spraying water. An ultraviolet fluorescent lamp etc. are arranged. In addition, an annular sample frame centered on the light source is provided, and each sample is attached to the sample frame. And, under the above-mentioned promoting environmental conditions, tests are performed for several hours to several thousand hours.

JP 2007-33465 A

  By the way, in such a weather resistance tester, it is generally required to improve the reproducibility in the weather resistance test (to suppress the variation of the test result).

  Therefore, it is desirable to provide a weathering tester and a sample holder for the weathering tester capable of improving the reproducibility in the weathering test.

The sample holder for a weather resistance tester according to one embodiment of the present invention is attached to an annular sample frame centered on the light source in the test tank of the weather resistance tester and is a weather resistance for holding the sample . A sample holder for a testing machine, comprising: a base having a sample mounting portion on which a sample is held; a first overhang portion provided to project from the base toward one side of the sample mounting portion ; And a second overhanging portion provided to project from the base toward the other side of the sample attachment portion . The first overhanging portion has a first overlapping surface on which the second overhanging portion of the other weather resistance tester sample holder on one side is overlapped, and the second overhanging portion The protrusion has a second overlapping surface on which the first overhanging portion of the other weather resistance tester sample holder on the other side is overlapped. In the first overhang portion, the first overlapping surface is disposed on the back side of the light source with respect to the base via the first step extending along the depth direction orthogonal to the sample attachment portion, and In the overhang portion of the second embodiment, the second overlapping surface is disposed on the back side with respect to the base via the second step extending in the depth direction.

A weathering tester according to an embodiment of the present invention includes a test chamber, a light source emitting light in the test chamber, and an annular sample arranged so that the light source is at a central position in the test chamber. It comprises a frame and a plurality of sample holders each attached to the sample frame in the test chamber and for holding the sample. Each of the plurality of sample holders includes a base having a sample attachment portion on which the sample is held, and a first overhang portion provided to project from the base toward one side of the sample attachment portion . And a second overhanging portion provided so as to project from the base toward the other side of the sample mounting portion. When a plurality of sample holders are arranged adjacent to each other along a ring-shaped sample frame, a first overhang in one sample holder and a second overhang in another sample holder on one side The first and second portions overlap each other, and one sample holder is provided with a first overlapping surface, and a second overhanging portion in one sample holder and a first tension in another sample holder on the other side A second overlapping surface is provided on one of the sample holders, with the outlet portions superimposed on one another. In each of the plurality of sample holders, in the first projecting portion, the first overlapping surface is closer to the back surface to the light source than the base via the first step extending along the depth direction orthogonal to the sample mounting portion While being arrange | positioned, in the 2nd overhang | projection part, the 2nd overlapping surface is arrange | positioned rather than a base in the said back side via the 2nd level | step difference extended along the said depth direction.

The weatherometer sample holder and weathering tester according to an embodiment of the present invention, a base having a sample mounting portion, protrudes respectively toward the side of both the sample mounting portion, the first And a second overhang. Thereby, for example, when a plurality of sample holders are arranged adjacent to each other along an annular sample frame , a gap is less likely to be generated between the sample holders. As a result of suppressing the disturbance, the temperature difference between the samples on each sample mounting portion is reduced.
In addition, a first overlapping surface is provided in the first projecting portion and a second overlapping surface is provided in the second projecting portion, and the first projecting portion is provided with the first step via the first step. The overlapping surface of 1 is disposed on the back side with respect to the base, and in the second overhanging portion, the second overlapping surface is disposed on the back side of the base via the second step. Depending on the situation, it will be as follows. That is, since it becomes difficult to produce a crevice between a plurality of sample holders further, disorder of the above-mentioned circulation wind is further suppressed, for example. As a result, since the temperature difference between the samples on each sample mounting portion is further reduced, the reproducibility in the weathering test is further improved.

The first overlapping surface of the sample holder for the weather resistance tester and the second overlapping surface of the other sample holder for the weather resistance tester on one side face mutually overlap at an angle, Even if the second overlapping surface of the sample holder for the weather resistance tester and the first overlapping surface of the other sample holder for the weather resistance tester on the other side face overlap at an angle to each other. Good.

The weatherometer sample holder and weathering tester according to an embodiment of the present invention, the first and second protruding portions, a first overhang overhanging toward one side surface side The width and the second overhang width projecting toward the other side are different from each other, and the length of the first step and the length of the second step along the depth direction are They may be different from each other. In such a case, for example, between a plurality of sample holder disposed adjacent as described above, a gap with is less likely even occur when superposing the first and second projecting portions, these first 1 and a second interference between the protruding portion, is prevented. Therefore, since the temperature difference between the samples described above is further reduced, the reproducibility in the weather resistance test is further improved, and the mounting operation of the sample holder is facilitated, thereby improving the convenience.

Further, in the sample holder for a weather resistance tester according to one embodiment of the present invention, the plurality of samples are arranged along the height direction orthogonal to the extension direction of the first and second overhang portions in the base. You may make it have an attaching part. In this case, since a plurality of samples are attached along the height direction, attachment and detachment of a plurality of samples can be performed simultaneously by a single attaching and detaching operation of the sample holder in the test tank. . As a result, the operation is simplified, and the convenience is improved. In addition, since the first and second projecting portions are provided, the mechanical strength can be prevented from decreasing even if the entire sample holder is elongated in the height direction.

In this case, the plurality of sample attachment portions may be bent at a predetermined bending angle along the height direction. In other words, the base portion may have a plurality of sample attachment portions which are bent relative to each other along the height direction orthogonal to the extension direction of the first and second extension portions. In this case, for example, the irradiance of light emitted from the light source applied to the weather resistance tester does not easily vary among the plurality of sample attachment portions. As a result, since the temperature difference between the samples on each sample mounting portion is further reduced, the reproducibility in the weathering test is further improved.

Here, in the sample holder for a weather resistance tester according to one embodiment of the present invention, the overhang width in the overhang direction at the first and second overhangs is along the height direction at the base. It may be made to become small gradually toward the both ends from near central region. In this case, as described above, even when the plurality of sample attachment portions are bent along the height direction, for example, the gap between the plurality of sample holders disposed adjacent to each other as described above Is less likely to occur. Therefore, even in such a case, the temperature difference between the samples described above is reduced, and the reproducibility in the weather resistance test is improved.

  Further, in the sample holder for a weather resistance tester according to one embodiment of the present invention, the bending angle is set based on a light distribution curve of light emitted from a light source applied to the weather resistance tester. The angles may be defined so that the irradiances of the parts are substantially equal. In this case, the irradiance of the light emitted from the light source applied to the weather resistance tester is substantially equal in the plurality of sample attachment parts, so the temperature difference between the samples on each sample attachment part is more It reduces further and the reproducibility in a weathering test is further improved.

  Moreover, in the case of the sample holder for a weather resistance tester according to one embodiment of the present invention, when the circulating air circulates in the test tank, the sample holder is disposed in front of the plurality of sample attachment parts, and the weather resistance test is performed. Transmission member for transmitting light emitted from the light source applied to the machine, and the circulation thereof so that the wind speed of the circulating air passing between the sample and the light transmission member on the plurality of sample attachment parts is suppressed A first wind direction plate for controlling the wind direction may be further provided. In this case, since the wind speed of the circulating air passing between the sample and the light transmitting member on the plurality of sample mounting portions is suppressed by the first wind direction plate, the circulation by the radiation heat from the light source The temperature rise difference (the temperature rise difference in the height direction) between the inflow side and the outflow side of the wind is reduced. As a result, the temperature difference between the samples on each sample mounting portion is further reduced, and the reproducibility in the weather resistance test is further improved.

  Further, in the weathering tester according to one embodiment of the present invention, when the circulating air circulates in the test tank, the sample attachment portion located on the downstream side of the circulating air along the height direction. Toward the upper sample, a second wind direction plate may be provided to control the direction of the circulating wind. In this case, since the direction of the circulating air is controlled toward the sample on the sample attachment portion located downstream of the circulating air, the upstream side and the downstream side of the circulating air by the radiant heat from the light source And the difference in temperature rise between them (the temperature rise difference in the height direction) is reduced. As a result, the temperature difference between the samples on each sample mounting portion is further reduced, and the reproducibility in the weather resistance test is further improved.

Here, in the sample holder for a weather resistance tester according to one embodiment of the present invention, light emitted from a light source applied to the weather resistance tester at at least one end along the height direction in the base A light blocking member for blocking light may be further provided. If in this manner, for example, by increasing the sample frame of said annular, to set a longer distance to the sample holder from the case (the light source to increase the mounting number of the sample holder to the sample frame on Also in the above, light leakage from the end of the sample holder is suppressed. As a result, unnecessary temperature rise in the test chamber can be suppressed and waste of light energy can also be suppressed.

Further, the weather resistance testing machine according to an embodiment of the present invention, a sample frame of said annular, each fixing a plurality of the mounting position of the sample holder on the sample frame, so as to have a holder fixing portion It is also good. In this case, when attaching each sample holder on the sample frame, it is possible to simply attach each sample holder, and it is also possible to attach a plurality of sample holders at equal intervals. As a result, simplification of the operation is achieved, so that the convenience is improved, and the above-described gap between the sample holders is further hardly generated, so that the reproducibility in the weather resistance test is further improved.

According to the sample holder for the weather resistance tester and the weather resistance tester according to the embodiment of the present invention, since the first and second overhang portions are provided, for example, a plurality of sample holders are mutually connected. When arranged adjacent to each other along an annular sample frame , the temperature difference between the samples on each sample attachment can be reduced. Therefore, by using such a sample holder, it is possible to improve the reproducibility in the weather resistance test.

It is a schematic diagram showing the schematic structural example of the weather resistance tester which concerns on one embodiment of this invention. It is a schematic diagram showing the example of a detailed structure of the sample holder shown in FIG. It is a schematic diagram showing the example of an upper surface structure of the sample holder shown in FIG. It is a schematic diagram showing the example of an upper surface structure at the time of arranging the sample holder shown in FIG. 2 adjacently by two or more. It is a schematic diagram showing the perspective view structural example in the case of adjacent arrangement | positioning of the sample holders shown in FIG. It is a schematic diagram showing the example of a perspective view at the time of arranging the sample holder which concerns on a comparative example adjacently by two or more. It is a schematic diagram showing the example of a structure of the other sample holder which concerns on embodiment. It is a schematic diagram showing the example of a structure of the other sample holder which concerns on embodiment. It is a schematic diagram showing the structural example of the sample holder etc. which concern on modification 1-1. It is a schematic diagram showing the structural example of the sample holder etc. which concern on modification 1-2. FIG. 10 is a schematic view illustrating a configuration example of a sample holder according to a modification 2; It is a schematic diagram showing the structural example of the weather resistance tester which concerns on the modification 3. FIG. FIG. 16 is a schematic view illustrating a configuration example of a weathering tester according to a modification 4; It is a schematic diagram showing the structural example of the weather resistance tester which concerns on the modification 5. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The description will be made in the following order.
1. Embodiment (an example of a sample holder having a base having a sample attachment portion and an overhang portion)
2. Modifications Modification 1 (an example in which the bending angle between sample attachment parts is defined based on the light distribution curve of light from a light source)
Modification 2 (example of sample holder further having light transmitting member and wind direction plate)
Modification 3 (example of a weathering tester further including a wind direction plate in a test tank)
Modification 4 (example in which a light shielding member is further provided on the sample holder in Modification 3)
Modification 5 (an example of a weather resistance tester in which a holder fixing portion is further provided on a sample frame)
3. Other variations

<1. Embodiment>
[Schematic configuration]
FIG. 1: represents typically the schematic structural example of the weather resistance tester (weather resistance tester 1) which concerns on one embodiment of this invention.

  The weather resistance tester 1 performs a weather resistance test under accelerated environmental conditions on a sample (test piece) 9 made of various materials disposed in the test tank 10. As shown in FIG. 1, the weather resistance tester 1 includes a light source 11, a pair of sample frames 12a and 12b, a sample holder 13, a light receiver 14, and the like in a test chamber 10 capable of adjusting temperature and humidity. A rotation shaft 120 and a control unit 19 are provided.

  The light source 11 is disposed in the vicinity of the center in the test chamber 10 so as to extend along the Z-axis direction. The light source 11 emits light Lout to the surroundings in the test tank 10. The light source 11 is composed of, for example, a lamp light source such as a xenon arc lamp, a sunshine carbon arc lamp, an ultraviolet carbon arc lamp, a metal halide lamp or an ultraviolet fluorescent lamp.

  Each of the sample frames 12a and 12b is an annular frame arranged so that the light source 11 is at the center position, and is for attaching a plurality of sample holders 13 respectively. Each of these sample frames 12a and 12b is rotated along the rotational direction R1 as shown in FIG. 1, so that the light source 11 is rotated along the rotational direction R2 in the same direction as the rotational direction R1. The rotation operation is performed at a constant speed about the center (rotation center). Thereby, each sample holder 13 mentioned later, the light receiver 14, and the black panel thermometer which is not illustrated also perform rotation operation along rotation direction R2 centering | focusing on the light source 11. As shown in FIG.

  As shown in FIG. 1, the sample holder 13 is attached so as to connect the sample frames 12a and 12b, and is attachable to and detachable from these sample frames 12a and 12b. Each sample holder 13 is a holder (sample holder for a weather resistance tester) for holding the sample 9 in the test tank 10, and although the details will be described later, it has sample mounting portions S1 to S3 facing the light source 11. doing. Further, on the sample mounting portions S1 to S3, a sample 9, or a light receiver 14 described later, or a black panel thermometer is disposed. Such a plurality of sample holders 13 as a whole have a polygonal shape according to the number of them on a plane orthogonal to the Z axis. In other words, the plurality of sample holders 13 are arranged side by side so as to form a polygon on the above-mentioned sample frames 12a and 12b. A detailed configuration example of such a sample holder 13 will be described later (FIGS. 2 to 4).

  The light receiver 14 is for measuring the irradiance of the light Lout emitted from the light source 11 (illuminometer), and is mounted on the sample frames 12a and 12b. Specifically, for example, as shown in FIG. 1, the light receiver 14 is disposed on the sample holder 13 to which the sample 9 is not attached (not disposed) on the sample frames 12a and 12b. . The light reception data (light reception value) obtained by the light receiver 14 is transmitted to the control unit 19 described later.

  The black panel thermometer described above is attached on the sample holder 13 to which the sample 9 is not attached, and is a thermometer for measuring temperature information representing the surface temperature of the sample attachment portions S1 to S3. The temperature information includes a component in which the light energy of the light Lout is heated, an environmental temperature component in the test tank 10, and a heat transfer component by a wind (a circulating wind W described later) flowing on the surface of the sample 9. It is. Such a black panel thermometer includes, for example, a heat sensor such as a bimetal, a platinum resistor, a thermistor or a thermocouple, and a plate painted black.

  The control unit 19 is a part that controls the overall operation of the weathering tester 1. The control unit 19 has a function of controlling the irradiance to the sample 9 by controlling the radiation intensity of the light source 11 based on the light reception data obtained by the light receiver 14 as one of such control operations, for example. have. In addition, when the control unit 19 selects the reference for temperature control to the black panel thermometer described above, the temperature control in the test tank 10 or the sample 9 is performed based on the temperature information obtained by the black panel thermometer. It has a function (temperature control function) which controls the wind speed of the wind (circulation wind W mentioned later) which flows on the surface of.

[Detailed Configuration of Sample Holder 13]
Subsequently, a detailed configuration example of the sample holder 13 described above will be described with reference to FIGS. 2 to 4 in addition to FIG. 1.

  FIG. 2 schematically shows an example of a detailed configuration of the sample holder 13. Specifically, FIG. 2A shows a structural example (Z-X plane structural example) when the sample holder 13 is viewed from the front, and FIG. 2B shows a side structural example of the sample holder 13 (Y -Z plane configuration example) is shown respectively. Moreover, FIG. 3 represents typically the upper surface structural example (X-Y surface structural example) of the sample holder 13 shown in FIG. FIG. 4 schematically shows an example of an upper surface configuration (an example of an XY plane configuration) in the case where a plurality of (two in this example) sample holders 13 shown in FIG. 2 are arranged adjacent to each other in the XY plane. In the form of

  As shown in FIG. 2, the sample holder 13 includes a base 130, overhangs 131 L and 131 R (feathers) projecting from the base 130 along the X-axis direction (expansion direction), and a base 130. And the protrusions 132U and 132D respectively formed at the ends of the

(Base 130)
The base 130 has a rectangular shape extending along the Z-axis direction (height direction orthogonal to the overhang direction: for example, the vertical direction), and the sample 9 is held along the Z-axis direction. A plurality of sample attachment parts (in this example, three sample attachment parts S1 to S3) are provided. Specifically, as shown in FIG. 2 (B), the base 130 is disposed on the sample mounting portion S2 parallel to the Z-axis direction and on the upper side (positive direction on the Z axis) of the sample mounting portion S2. Sample mounting portion S1 (Z axis) which is bent with respect to the sample mounting portion S2 (Z axis), and disposed below the sample mounting portion S2 (in the negative direction on the Z axis) side, the sample mounting portion S2 (Z axis) And a sample attachment portion S3 that is bent with respect to the As described above, in the sample holder 13, the three sample attachment portions S <b> 1 to S <b> 3 are bent along the Z-axis direction at a predetermined bending angle.

(Rounded portions 131L, 131R)
The overhanging portions 131L and 131R are provided to project from the base 130 toward both side surfaces (in the X-axis direction) of the sample attachment portions S1 to S3 described above. Specifically, as shown in FIG. 2 and FIG. 3, the overhanging portion 131L overhangs toward one side surface side (negative direction on the X axis) in each of the sample mounting portions S1 to S3. Further, the overhanging portion 131L overhangs toward the other side (the positive direction on the X axis) in each of the sample attachment portions S1 to S3.

  As shown in FIGS. 2 to 4, such a pair of overhanging portions 131L and 131R is provided with overlapping surfaces SL and SR on which the overhanging portions 131R and 131L of the other sample holder 13 overlap. It is done. In other words, for example, as shown in FIG. 4, when the plurality of sample holders 13 are arranged adjacent to each other along the extension direction (for example, the horizontal direction) of the extension parts 131L and 131R, one sample holder The overhanging portions 131L and 131R at 13 and the overhanging portions 131R and 131L at the other sample holder 13 are made to overlap each other. Specifically, in the example shown in FIG. 4, as shown by the code P 1, the overhanging portion 131 L (superimposed surface SL) in one sample holder 13 and the overhanging portion 131 R (in the other sample holder 13) The superimposed surfaces SR) are superimposed on each other.

  Further, as shown in FIG. 2 (A), in each of the overhanging portions 131L and 131R, the overhanging width in the overhanging direction (X-axis direction) (overhanging widths WL and WR described later) It becomes gradually smaller (narrower) from near the central region along the height direction (Z-axis direction) at 130 to both ends. Specifically, in the example shown in FIG. 2A, first, in the formation region of the sample attachment portion S2 as the central region in the base portion 130, each overhang width in the overhang portions 131L and 131R is It is constant. On the other hand, in the formation regions of the sample attachment portions S1 and S3, the extension widths of the extension portions 131L and 131R gradually decrease (by linear change in this example) toward both ends of the base 130. It has become.

  Further, as shown in FIG. 3 and FIG. 4, in these projecting portions 131L and 131R, steps are provided along the depth direction (Y-axis direction) orthogonal to the sample attaching portion S2. In other words, the overhanging portions 131L and 131R (respective overlapping surfaces SL and SR) are disposed at positions recessed in the positive direction on the Y axis as compared with the sample attachment portions S1 to S3. For example, as shown in FIG. 3, in the pair of the overhanging portions 131L and 131R, the above-described overhang width (overhanging widths WL and WR) and the step length of the step along the above-described depth direction The step lengths LL and LR) are different from each other. Specifically, in the example shown in FIG. 3, the overhang width WL and the step length LL in the overhang portion 131L are respectively larger than the overhang width WR and the step length LR in the overhang portion 131R. (WL> WR, LL> LR). As described above, the pair of the overhanging portions 131L and 131R have an overhanging shape (overlapping surface shape, step shape) which is not uniform.

(Protrusions 132U and 132D)
Further, as shown in FIG. 2, at both ends along the height direction (Z-axis direction) of the base 130 in the sample holder 13, the protrusions 132U and 132D (convex portions) that protrude along the height direction. ) Is formed. Specifically, a protrusion 132U is formed on the upper end (end on the positive direction on the Z axis) of the base 130, and the end on the negative side of the base 130 (on the negative direction on the Z axis) The protrusion 132D is formed on the portion). Such protrusions 132U and 132D are portions used when the sample holder 13 is mounted on the sample frames 12a and 12b described above.

[Operation and action / effect]
(A. Basic operation)
In the weathering tester 1, light Lout is emitted from the light source 11 in the test tank 10 as necessary. Further, at this time, each of the sample frames 12 a and 12 b to which the plurality of sample holders 13 are attached performs a rotation operation around the light source 11. Thereby, the light Lout is irradiated to the sample 9 on each sample holder 13 under the accelerated environmental conditions (accelerated test environment). The radiation degree of such light Lout is performed for a predetermined test time (for example, about several hours to several thousand hours), the degree of deterioration of each sample 9 (material) and the like are evaluated, and a weather resistance test is performed.

  At the time of such a weather resistance test, the control unit 19 controls the irradiance to the sample 9 by controlling the radiation intensity of the light source 11 based on the light reception data obtained by the light receiver 14. As a result, the discharge power of the light source 11 is controlled so that the value of the light reception data substantially matches (preferably matches) with the test condition value set in advance, and a stable radiation operation is secured.

  The control unit 19 also controls, for example, the temperature in the test tank 10 and the temperature control of the black panel thermometer described above by controlling operations of a heater, a refrigerator, and the like (not shown). Such temperature control is performed using, for example, PID (Proportional-Integral-Derivative) control.

(B. Action, effect)
Subsequently, with reference to FIG. 5 and FIG. 6 in addition to FIG. 1 to FIG. 4, functions and effects of the weather resistance tester 1 and the sample holder 13 of the present embodiment will be described in detail in comparison with comparative examples. Do. FIG. 5 schematically shows an example of a perspective configuration in the case of the adjacent arrangement of the sample holders 13 shown in FIG. 4. Further, FIG. 6 schematically shows an example of an oblique view configuration example in the case where a plurality of (two in this example) sample holders (sample holders 103) according to the comparative example are arranged adjacent to each other in the XY plane. It is

(Comparative example)
First, in the sample holder 103 of the comparative example shown in FIG. 6, neither of the pair of overhanging portions 131L and 131R is provided in the sample holder 13 of the present embodiment shown in FIGS. 130 only) is provided. That is, unlike the sample holder 13, the sample holder 103 has a simple rectangular shape extending along the Z-axis direction.

  Therefore, for example, as shown in FIG. 6, when the sample holders 103 of this comparative example are arranged adjacent to each other in a plurality in the XY plane (on the sample frames 12 a and 12 b), those sample holders 103 are There will be a gap G between them. In other words, each sample holder 103 is attached with a gap G on the sample frames 12a and 12b. The occurrence of such a gap G between the sample holders 103 may cause, for example, the following problems in the weather resistance tester according to the comparative example.

  That is, first, in the test tank 10, in the irradiation test of irradiating the light Lout from the light source 11 toward the sample 9, in order to prevent the temperature of the sample 9 from rising excessively by the radiant heat from the light source 11, A circulating wind (circulating wind W described later) flows on the surface of the sample 9. However, when the circulating air leaks from the gap G between the sample holders 103, the flow of the circulating air becomes irregular (the turbulence of the circulating air becomes large), and as a result, each sample holder 103 (sample attachment portion S1 The temperature difference between the samples 9 on S3) may be increased. And, if the temperature difference between the samples 9 is increased, the test results in the weather resistance test may be varied, and the reproducibility in the weather resistance test may be reduced.

  In addition, when the gap G described above is generated, the light Lout from the light source 11 also leaks in the gap G, and the waste of light energy is increased. Furthermore, the light Lout leaked from the gap G in this way hits the wall surface of the test tank 10 to raise the temperature in the test tank 10, and as a result, it is a temperature control target on the surface of the sample 9 It becomes difficult to control BPT (black panel temperature) and the temperature in the test tank 10 simultaneously. In addition, since the light source 11 generally contains a large amount of ultraviolet light, there is a possibility that the components in the test tank 10 may be deteriorated by the light Lout leaking from the gap G.

  Furthermore, in the case of a weather resistance test, in general, a predetermined liquid (water, an oxidation liquid, etc.) may be sprayed onto the front and back surfaces of the sample 9, but if the liquid leaks from the gap G described above In the sample 9, there is a possibility that the liquid may be applied to the surface which is not jetted originally.

  Incidentally, in addition to the rotary type (a method of rotating the sample 9 around the light source 11) weatherability tester described in the present embodiment and the comparative example, the sample 9 is fixed around the light source 11. There is a weather resistance tester of the method of arrangement). However, in this fixed weathering tester, for example, when the thickness is different between the samples 9, the distance between the light source 11 and each sample 9 is also different, so the variation of the irradiance among the samples 9 becomes large. The reproducibility in the weathering test may be reduced.

Embodiment
On the other hand, in the sample holder 13 of the present embodiment, as shown in FIGS. 1 to 4, from the base 130 having the sample attachment portions S1 to S3, the side surfaces of the sample attachment portions S1 to S3 (X The overhang portions 131L and 131R are provided to project in the axial direction. That is, in this sample holder 13, unlike the sample holder 103 of the comparative example shown in FIG. 6, in addition to the base 130, the overhanging portions 131L and 131R are provided.

  Thereby, in the present embodiment, for example, as shown in FIG. 5, the plurality of sample holders 13 are arranged along the extension direction of the extension parts 131L and 131R in the XY plane (sample frames 12a and 12b When placed adjacent to each other, it becomes as follows. That is, the gap G is less likely to occur between the adjacent sample holders 13 (preferably, the gap G does not occur). Therefore, for example, the disturbance of the circulating air circulating in the test tank 10 as described above is suppressed, so that the samples on the sample holders 13 (sample attachment portions S1 to S3) are compared with the above-described comparative example in the present embodiment. The temperature difference between 9 will be reduced. Therefore, in the weather resistance tester 1 of the present embodiment, by using such a sample holder 13, the reproducibility in the weather resistance test can be improved (suppression of the variation in the test result) compared to the above comparative example. It becomes possible.

  Further, in the present embodiment, since the gap G is less likely to be generated between the sample holders 13, for example, the leakage of the light Lout from the gap G can be suppressed, and compared to the above comparative example, the waste of the light energy is caused. It is also possible to reduce. Furthermore, in the present embodiment, compared with the above-described comparative example, the unnecessary temperature rise in the test tank 10 caused by the leakage of the light Lout from the gap G is suppressed, and the ultraviolet light contained in the light Lout It is also possible to suppress deterioration of parts in the test tank 10. In addition, it is possible to reduce the leakage of the liquid from the gap G even in the case of performing the above-described spray injection of the liquid, for example, in the weathering test. In the above, it is also possible to avoid the possibility of the liquid being applied to the surface which is not jetted originally.

  Further, in the sample holder 13 of the present embodiment, as shown in FIGS. 2 to 5, the overhanging portions 131 R and 131 L of the other sample holders 13 are superimposed on the overhanging portions 131 L and 131 R, respectively. Superimposed surfaces SL and SR are provided. In other words, for example, as shown in FIG. 4, when the plurality of sample holders 13 are arranged adjacent to each other along the extension direction of the extension parts 131L and 131R, the extension parts in one sample holder 13 The 131L and 131R and the overhanging portions 131R and 131L in the other sample holder 13 are configured to overlap each other. In this manner, the overhang portions 131L and 131R overlap with each other in the plurality of sample holders 13 arranged adjacent to each other (the overlapping surfaces SL and SR are provided). In addition, the gap G is less likely to occur. Therefore, for example, as a result of further suppressing the disturbance of the circulating air described above, the temperature difference between the samples 9 on each of the sample holders 13 (sample mounting portions S1 to S3) is further reduced, so that the reproducibility in the weather resistance test is further reduced. It is possible to improve.

  Furthermore, in the sample holder 13 according to the present embodiment, for example, as shown in FIG. 3, the overhanging widths WL and WR in the overhanging direction (X-axis direction) between the pair of overhanging portions 131L and 131R. The step lengths LL and LR of the steps along the depth direction (Y-axis direction) are different from each other. Thereby, in the present embodiment, for example, the gap G is further less likely to be generated between the plurality of sample holders 13 disposed adjacent to each other as described above, and these overhangs 131L and 131R are overlapped when these overlap each other. Interference between the projecting portions 131L and 131R is prevented. Therefore, since the temperature difference between the samples 9 described above is further reduced, the reproducibility in the weather resistance test can be further improved, and the attachment operation of the sample holder 13 becomes easy, which is convenient. It is also possible to improve

  In addition, in the sample holder 13 of the present embodiment, for example, as shown in FIGS. 2 and 5, a plurality of samples are formed on the base 130 along the height direction (Z-axis direction) orthogonal to the overhang direction. Mounting portions (in this example, three sample mounting portions S1 to S3) are provided. By providing such a plurality of sample attachment portions S1 to S3 on the base 130, a plurality of samples 9 (three samples 9 in this example) can be carried out by a single attachment / detachment operation of the sample holder 13 into the test tank 10. Installation and removal will be done at the same time. As a result, in the present embodiment, the work can be simplified, and the convenience can be improved. Further, in the sample holder 13, since the above-described overhanging portions 131L and 131R are provided, mechanical strength reduction is prevented even if the entire sample holder 13 becomes long in the above-described height direction. Is possible.

  Further, in the sample holder 13 of the present embodiment, for example, as shown in FIG. 2 (B) and FIG. 5, the plurality of such sample attachment portions S1 to S3 are in the height direction described above (Z-axis direction ) Is bent at a predetermined bending angle. Thus, in the present embodiment, for example, the irradiance of the light Lout emitted from the light source 11 does not easily vary among the plurality of sample attachment portions S1 to S3. As a result, in the present embodiment, the temperature difference between the samples 9 on each of the sample holders 13 (sample attachment portions S1 to S3) is further reduced, so that the reproducibility in the weather resistance test can be further improved. Become.

  Furthermore, in the sample holder 13 according to the present embodiment, for example, as shown in FIG. 2A, the overhang widths WL and WR in the overhang direction (X-axis direction) in the overhang portions 131L and 131R are It becomes smaller gradually from near the central region along the height direction (Z-axis direction) in the base 130 toward both ends. Thus, in the present embodiment, as described above, even when the plurality of sample attachment portions S1 to S3 are bent along the above-described height direction, between the plurality of sample holders 13 arranged adjacent to each other. The gap G is less likely to occur. Therefore, even in such a case, the temperature difference between the samples 9 described above can be reduced, and the reproducibility in the weather resistance test can be improved.

  In the present embodiment, for example, the following sample holders 13A and 13B may be used instead of the sample holder 13 described above. Even in the case of using these sample holders 13A and 13B, basically, it is possible to obtain the same effect as in the case of using the sample holder 13.

  Specifically, first, in the sample holder 13A shown in FIGS. 7A and 7B, the base 130 is directed only to one side (in the X-axis direction) of each of the sample attachment portions S1 to S3. A overhanging portion is provided so as to overhang. Specifically, in the example of the sample holder 13A shown in FIGS. 7 (A) and 7 (B), the overhanging portion 131L corresponds to one side surface side (on the X axis) of each of the sample attachment portions S1 to S3. In the negative direction). That is, in this sample holder 13A, unlike the sample holder 13, the overhanging portion 131R (an overhanging portion projecting toward the other side (a positive direction on the X axis) in each of the sample attaching portions S1 to S3) is , Not provided.

  Further, for example, in the sample holder 13B shown in FIGS. 8A and 8B, two sample attachment portions S1 and S2 are provided on the base 130 along the above-described height direction (Z-axis direction). ing. That is, while the sample holder 13 is provided with the three sample attachment portions S1 to S3 in the base portion 130, the sample holder 13B is provided with the two sample attachment portions S1 and S2 in the base portion 130. In addition, also in such a sample holder 13B, as in the case of the above-described sample holder 13A, only one of the pair of overhang portions 131L and 131R may be provided.

<2. Modified example>
Subsequently, modified examples (modified examples 1 to 5) of the above embodiment will be described. In addition, the same code | symbol is attached | subjected to the same thing as the component in embodiment, and description is abbreviate | omitted suitably.

[Modification 1]
FIGS. 9 and 10 schematically show configuration examples of the sample holder 13 and the like according to the first modification (the first modification 1-1 and the second modification 1-2), respectively. In FIG. 10, the light source 11 is shown as a light source 11 'for the sake of convenience.

  First, in each of the modifications 1-1 and 1-2, the bending angles of the plurality of sample attachment portions described above are based on the light distribution curve of the light Lout emitted from the light source 11 (or the light source 11 ′). The angles at which the irradiances at the plurality of sample attachment portions are substantially equal (desirably equal) are set. Note that this light distribution curve depends on the type of light source (such as light source 11 or light source 11 ') or the distance from light source 11 (or light source 11') to sample attachment portions S1 to 3 (or sample attachment portions S1 and S2). , Is different.

  Specifically, in the modified example 1-1 shown in FIG. 9, the bending angle θ1 of the three sample attachment portions S1 to S3 in the sample holder 13 or the sample holder 13A described above is defined as follows. There is. That is, based on the light distribution curve C1 of the light Lout emitted from the light source 11, the bending angle θ1 = for example 30 ° is defined so that the irradiances at these three sample attachment parts S1 to S3 become substantially equal. .

  On the other hand, in the modified example 1-2 shown in FIG. 10, the bending angle θ2 of the two sample attaching portions S1 and S2 in the sample holder 13B described above is defined as follows. That is, based on the light distribution curve C2 of the light Lout emitted from the light source 11 ', the bending angle θ2 is defined as, for example, 12.5 ° so that the irradiances at these two sample attachment portions S1 and S2 become substantially equal. It is done. The light distribution curve C2 is different from the above-described light distribution curve C1 in the type of light source (light source 11 ') and the distance from the light source 11' to the sample attachment portions S1 and S2.

  With such a configuration, in the modified examples 1-1 and 1-2, the irradiances of the light Lout emitted from the light source 11 become substantially equal (desirably equal) in the plurality of sample attachment portions, and thus each sample attachment portion The temperature difference between the upper samples 9 will be further reduced. Therefore, in this modification, it is possible to further improve the reproducibility in the weather resistance test.

[Modification 2]
FIG. 11 schematically shows an example of the side surface configuration (Y-Z surface configuration example) of the sample holder (sample holder 13C) according to the second modification. The sample holder 13C of this modification, as shown in FIG. 11, corresponds to the sample holder 13 described in the embodiment, further including the light transmitting member 133, the wind direction plate 134 and the wind shield plate 136. The other configurations are basically the same.

  The light transmitting member 133 is disposed in front of each of the sample attachment portions S1 to S3 (the upper sample 9), and is a member that transmits the light Lout emitted from the light source 11. Specifically, for example, of the light Lout from the light source 11, the light transmitting member 133 is configured to transmit only the light passing through the window glass or the like in the ultraviolet light.

  The wind shield plate 136 is disposed on the side surface between the sample holder 13C and the light transmitting member 133, and the circulating wind W flowing out from between the sample 9 and the light transmitting member 133 on each of the sample mounting portions S1 to S3. Is a member provided to be restrained. Thereby, it is possible to raise the temperature of the sample 9 as compared with the case of a normal weathering test.

  As shown in FIG. 11, the wind direction plate 134 is configured such that the wind speed of the circulating wind W passing between the sample 9 and the light transmitting member 133 on each of the sample attachment portions S1 to S3 is suppressed. It is a member that controls the wind direction of W. Specifically, in this example, the wind direction plate 134 is provided below the base 130 (downstream side of the circulation wind W) in the sample holder 13C, and the air passage of the circulation wind W passing as described above It is arranged to block the As described above, the circulating wind W is a wind that circulates in the test tank 10 and flows on the surface of the sample 9, and is an irradiation test for irradiating the light Lout from the light source 11 toward the sample 9. In this case, the radiation heat from the light source 11 prevents the temperature of the sample 9 from rising excessively. Such a wind direction plate 134 corresponds to one specific example of the “first wind direction plate” in the present invention.

  With such a configuration, in the sample holder 13C of this modification, as shown in FIG. 11, when the circulating air W passes between the sample 9 and the light transmitting member 133 on each of the sample attachment portions S1 to S3. (Circulation wind Win), the air flow path is blocked by the wind direction plate 134 disposed on the downstream side of the circulation wind W. As a result, after the wind speed of the circulation wind W is suppressed, the circulation wind W flows out from the inside of the sample holder 13C (circulation wind Wout). Thus, by suppressing the wind speed of the circulating wind W, the temperature rise difference between the inflow side and the outflow side of the circulating wind W due to the radiant heat from the light source 11 (the temperature in the height direction of the sample holder 13C) Difference in rise) is reduced. That is, in this example, the sample 9 on the sample attachment portion S1 located on the inflow side (upstream side) of the circulating wind W and the sample 9 on the sample attachment portion S3 located on the outflow side (downstream side) of the circulating wind W And the difference in temperature between them will be reduced. Thus, in the present modification, the temperature difference between the samples 9 on each of the sample attachment portions S1 to S3 is further reduced, and the reproducibility in the weather resistance test can be further improved.

[Modification 3]
FIG. 12: represents typically the structural example of the weather resistance tester (weather resistance tester 1A) which concerns on the modification 3. As shown in FIG. The weather resistance tester 1A of the present modification corresponds to the weather resistance tester 1 described in the embodiment, in which the wind direction plate 18 is further provided in the test tank 10, as shown in FIG. The other configurations are basically the same.

  The wind direction plate 18 is disposed on the upstream side of the circulating wind W in the test tank 10, and is located on the downstream side of the circulating wind W along the height direction (Z-axis direction) of the sample holder 13 It is a member for controlling the wind direction of the circulating wind W toward the upper sample 9. Such a wind direction plate 18 corresponds to a specific example of the “second wind direction plate” in the present invention.

  With such a configuration, in the weather resistance tester 1A of this modification, as shown in FIG. 12, the circulating wind W is directed toward the sample 9 on the sample attachment portion S3 located downstream of the circulating wind W. Since the wind direction is controlled, the temperature rise difference (the temperature rise difference in the height direction of the sample holder 13) between the upstream side and the downstream side of the circulating wind W due to the radiant heat from the light source 11 is reduced. . That is, in this example, the temperature rise difference between the sample 9 on the sample attachment portion S1 located on the upstream side of the circulating wind W and the sample 9 on the sample attachment portion S3 located on the downstream side of the circulating wind W Will be reduced. Thus, also in the present modification, the temperature difference between the samples 9 on the sample attachment portions S1 to S3 can be further reduced, and the reproducibility in the weather resistance test can be further improved.

[Modification 4]
FIG. 13: represents typically the structural example of the weather resistance tester (weather resistance tester 1B) which concerns on the modification 4. FIG. The weather resistance tester 1B of this modification corresponds to the one in which the sample holder (sample holder 13D) of the present modification is provided in place of the sample holder 13 in the weather resistance tester 1A described in the third modification. The other configurations are basically the same.

  The sample holder 13D corresponds to the sample holder 13 further provided with the light shielding members 135U and 135D as shown in FIG. 13, and the other configuration is basically the same.

  The light shielding members 135U and 135D are provided at both ends of the base portion 130 along the height direction (Z-axis direction), and shield the light Lout emitted from the light source 11. Specifically, as indicated by the “x (cross)” mark in FIG. 13, the light Lout from the light source 11 is blocked at the location where the light blocking members 135U and 135D are disposed, and to the rear of them The light Lout does not advance. Only one of the light shielding members 135U and 135D may be provided. That is, the light shielding member may be provided only at one end of the base 130 along the height direction.

  With such a configuration, in the weathering tester 1B of the present modification, for example, as shown by the arrow P2 in FIG. 13, the sample frames 12a and 12b are enlarged to fit onto these sample frames 12a and 12b. When the number of attached sample holders 13D is increased (when the distance from the light source 11 to each sample holder 13D is set to be longer), the following occurs. That is, even in such a case, since the light shielding members 135U and 135D described above are provided in each sample holder 13D, light leakage from both ends of each sample holder 13D can be suppressed (desirably prevented) . As a result, in the present modification, it is possible to suppress an unnecessary temperature rise in the test tank 10, and it is also possible to suppress waste of light energy.

[Modification 5]
FIG. 14: represents typically the example of a structure of the weather resistance tester (weather resistance tester 1C) which concerns on the modification 5 with a front view (Z-X front view). In the weather resistance tester 1C of this modification, as shown in FIG. 14, in the weather resistance tester 1 described in the embodiment, the sample frame (sample frame 12c) of this modification is used instead of the sample frame 12a. It corresponds to what was provided, and other configurations are basically the same.

  The sample frame 12c corresponds to the sample frame 12a further provided with a plurality of openings 121 (concave portions), as shown in FIG. The openings 121 are portions that function as a holder fixing portion that fixes the mounting position of each sample holder 13 on the sample frame 12 c. The height of the upper surface of the opening 121 (recess) in the sample frame 12c is the same as the height of the upper surface of the sample frame 12a. By doing this, when the sample holder 13 is attached to the sample frame 12a and the sample frame 12c, the heights of the sample holder 13 become the same. Therefore, even when the sample holder 13 is attached to the sample frame 12c, the positional relationship between the light source 11 and the sample holder 13 is the same as in the case of the sample frame 12a.

  With such a configuration, in the weather resistance tester 1C of the present modification, when attaching each sample holder 13 onto the sample frames 12c and 12b, each sample holder 13 can be simply attached, and a plurality of sample holders can be attached. It is also possible to attach 13 at equal intervals along the X-axis direction. As a result, in the present modification, the operation can be simplified, and thus the convenience can be improved, and the gap G between the sample holders 13 described above is further difficult to occur, so that the reproduction in the weather resistance test is reproduced. It is also possible to further improve the sex.

<3. Other Modifications>
The present invention has been described above by citing embodiments and modifications, but the present invention is not limited to these embodiments and the like, and various modifications can be made.

  For example, in the above embodiment etc., the configuration (shape, arrangement, number, etc.) of each device in the weather resistance tester has been specifically mentioned and explained, but the configuration of these has been explained in the above embodiment etc. The shape is not limited to the one described above, and may be another shape, arrangement, number, or the like.

  Moreover, although the example in the case of comprising the "light source" in this invention using the lamp light source mentioned above was demonstrated in the said embodiment etc., it is not restricted to this, For example, other, such as LED (Light Emitting Diode) A light source may be used to constitute the "light source" in the present invention.

  In the above-described embodiment and the like, an example in which the ultraviolet light transmitting member for transmitting ultraviolet light is used has been described. However, the present invention is not limited thereto. For example, a member which does not transmit ultraviolet light may be used. A member that does not transmit infrared light may be used.

  Furthermore, in the above embodiment etc., the configuration (shape, arrangement, number, etc.) in the sample holder has been specifically mentioned and explained, but these configurations are not limited to those described in the above embodiment etc. , Other shape, arrangement, number, etc. may be sufficient. Specifically, for example, in the above-described embodiment and the like, an example in which a plurality of sample attachment parts in a sample holder are bent to each other has been described, but the present invention is not limited to this example. The sample attachment parts may not be bent (flat). In addition to the case where a plurality of sample attachment portions are provided on the sample holder (base), for example, only one sample attachment portion may be provided on the sample holder (base). Furthermore, although the case where a plurality of sample holders were arranged in the test tank was mentioned as an example and explained in the above-mentioned embodiment etc, it is not restricted to this example, for example, only one sample holder is in a test tank It may be arranged.

  In addition, although the various control operations by the control unit, the weather resistance test method, and the like have been described in the above embodiment and the like, the method is not limited to the method described in the above embodiment and the like. A control operation or a weather resistance test may be performed.

  Further, the series of control described in the above-described embodiment and the like may be performed by hardware (circuit) or may be performed by software (program). In the case of being performed by software, the software is configured by a group of programs for causing a computer (microcomputer or the like) to execute the functions described above. For example, each program may be incorporated in advance in the computer and used, or may be installed and used in the computer from a network or a recording medium.

  1, 1A, 1B, 1C: weather resistance tester, 10: test tank, 11, 11 ': light source, 12a, 12b, 12c: sample frame, 120: rotating shaft, 121: opening (holder fixing portion), 13 , 13A, 13B, 13C, 13D ... sample holder, 130 ... base, 131L, 131R ... overhang, 132U, 132D ... projection, 133 ... light transmitting member, 134 ... wind direction plate, 135U, 135D ... light shielding member, 136 ... Wind shield plate, 14 ... light receiver, 18 ... wind direction plate, 19 ... control unit, 9 ... sample, Lout ... light, S1 to S3 ... sample mounting portion, R1, R2 ... rotation direction, SL, SR ... overlapping surface, WL, WR ... overhang width, LL, LR ... step length, G ... gap, C1, C2 ... light distribution curve, θ1, θ2 ... bending angle, W, Win, Wout ... circulating wind.

Claims (14)

A sample holder for a weather resistance tester , which is attached to an annular sample frame centered on a light source in a test tank of the weather resistance tester, and for holding a sample,
A base having a sample attachment portion on which the sample is held;
A first overhanging portion provided to project from the base toward one side of the sample attachment portion ;
And a second overhang portion provided to project from the base toward the other side of the sample attachment portion ,
The first overhanging portion has a first overlapping surface on which the second overhanging portion of the other weather resistance tester sample holder on the one side face side is overlapped,
The second overhanging portion has a second overlapping surface on which the first overhanging portion of the other weather resistance tester sample holder on the other side is overlapped.
In the first projecting portion, the first overlapping surface is disposed on the back side of the base with respect to the light source via a first step extending in the depth direction orthogonal to the sample mounting portion. With
The sample holder for a weather resistance tester , wherein the second overlapping surface is disposed closer to the rear side than the base via the second step extending in the depth direction at the second overhanging portion. . The first overlapping surface of the sample holder for the weather resistance tester and the second overlapping surface of the other sample holder for the weather resistance tester on the one side face overlap with each other at an angle. As well as
The second overlapping surface of the sample holder for the weather resistance tester and the first overlapping surface of the other sample holder for the weather resistance tester on the other side face overlap at an angle to each other. Do
The sample holder for a weather resistance tester according to claim 1. In the first and second overhangs,
A first ChoIzuruhaba overhanging toward the one side surface side, and a second protruding width overhanging toward the other side surface side, with are different from each other,
The sample holder for a weather resistance tester according to claim 1 or 2, wherein a length of the first step and a length of the second step along the depth direction are different from each other. The said base has a plurality of the said sample attachment parts along the height direction orthogonal to the overhang | projection direction of the said, 1st and 2nd overhang | projection part. The sample holder for the weather resistance tester according to the item 1. The sample holder for a weather resistance tester according to claim 4, wherein the plurality of sample attachment parts are bent at a predetermined bending angle along the height direction. The overhang width in the overhang direction in the first and second overhangs gradually decreases from near the central region along the height direction in the base toward both ends. The sample holder for the weather resistance tester according to 5. The bending angle based on the light distribution curves of light emitted from the light source to be applied to the weathering tester, is at an angle irradiance is defined to be substantially equal in a plurality of the sample mounting portion The sample holder for a weather resistance tester according to claim 5 or 6. Circulating air is circulating in the test tank,
Are arranged in front of a plurality of said sample mounting portion, and a light transmitting member which transmits light emitted from the light source to be applied to the weathering tester,
And a first wind direction plate for controlling the wind direction of the circulating wind so that the wind speed of the circulating wind passing between the sample and the light transmitting member on the plurality of sample mounting portions is suppressed. The sample holder for a weather resistance tester according to any one of claims 4 to 7. At least one end along said height direction in said base portion, said light blocking member for blocking light emitted from the light source to be applied to the weathering test machine, according to claim 4 through claim further provided The sample holder for a weather resistance tester according to any one of 8. Test tank,
A light source for emitting light in the test chamber;
An annular sample frame disposed so that the light source is at a central position in the test chamber;
A plurality of sample holders each attached to the sample frame in the test tank and for holding the sample;
The plurality of sample holders are each
A base having a sample attachment portion on which the sample is held;
A first overhanging portion provided to project from the base toward one side of the sample attachment portion ;
A second overhanging portion provided so as to project from the base toward the other side of the sample mounting portion
Equipped with
When the plurality of sample holders are arranged adjacent to each other along the annular sample frame,
The first overhanging portion in one of the sample holders and the second overhanging portion in the other of the sample holders on the one side face side are overlapped with each other to form a first in the one sample holder. While the overlapping surface is provided,
The second projecting portion in the one sample holder and the first projecting portion in the other sample holder on the other side face side overlap each other, and An overlapping surface is provided,
In each of the plurality of sample holders,
In the first projecting portion, the first overlapping surface is disposed on the back side of the base with respect to the light source via a first step extending in the depth direction orthogonal to the sample mounting portion. With
The weather resistance tester according to claim 1, wherein the second overlapping surface is disposed closer to the rear side than the base portion via a second step extending in the depth direction in the second overhang portion . In each of the plurality of sample holders, in the first and second overhangs,
The first overhanging width projecting toward the one side face and the second overhanging width projecting toward the other side face are different from each other.
The length of the first step and the length of the second step along the depth direction are different from each other
The weathering tester according to claim 10. The base portion includes a plurality of the sample attachment portions which are bent relative to each other along a height direction orthogonal to the extension direction of the first and second extension portions. Weather resistance tester as described in. Circulating air is circulating in the test tank,
The second wind direction plate according to claim 12, further comprising: a second wind direction plate for controlling the wind direction of the circulating wind toward the sample on the sample mounting portion positioned downstream of the circulating wind along the height direction. Weather resistance tester. Before SL sample frame, the weather resistance tester according to any one of claims 10 to 13 wherein each fixing mounting positions of the plurality of sample holders on the sample frame has a holder fixing portion.

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