Environment testing device

Abstract

To provide an environment testing device including wheel mounting units having an interval that can be significantly changed.SOLUTION: An environment testing device includes a testing room 2 that can be adjusted to a desired environment, a machine room 5 located below the testing room 2, and mechanical testing devices 3 each including a wheel mounting unit 21 capable of mounting a wheel of a vehicle. A floor surface of the testing room 2 is provide with first openings 10. The first opening 10 includes a lid member 20 covering the opening. The lid member 20 includes a first lid member 30 and a second lid member 32 movable with the first lid member 30. The first lid member 30 includes a second opening 32. The wheel mounting unit 21 can be exposed from the second opening 32, and is movable with the lid member 20 in a horizontal direction. A full length of the lid member 20 when the first lid member 30 is combined with the second lid member 32, expands and contracts in a longitudinal direction of the vehicle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an environmental test device for testing vehicles such as automobiles and motorcycles. [Background technology]

[0002] 2. Description of the Related Art Environmental testing equipment is known as equipment for examining the performance and durability of products, parts, etc. The environmental test device has a test chamber and can artificially create temperature environments (e.g., high and low temperatures), humidity environments (e.g., high and low humidity), and other specified environments within the test chamber. Also known is an environmental test apparatus equipped with an external force application device that applies an external force to the test object. Furthermore, Patent Document 1 discloses an environmental test device that can apply an external force to a vehicle such as an automobile as a test subject. The environmental testing device disclosed in Patent Document 1 has a member for supporting wheels, and performs an environmental test on a vehicle by placing the wheels on the member. That is, the environmental testing device disclosed in Patent Document 1 has four members (hereinafter referred to as wheel rests) for supporting the wheels, corresponding to the number of wheels. Each wheel of the vehicle is placed on the corresponding wheel rest.

[0003] In the environmental testing device disclosed in Patent Document 1, the wheel placement section on the front wheel side can be moved to match the wheel axle distance of the vehicle being tested. Also, in the environmental testing device disclosed in Patent Document 1, there is an opening in the floor of the test room, and a movable panel is provided to cover the opening. The environmental testing device disclosed in Patent Document 1 has a front wheel mounting section on which the front wheels of the vehicle are mounted, and a rear wheel mounting section on which the rear wheels of the vehicle are mounted. In the environmental testing device disclosed in Patent Document 1, the front wheel mounting section can be moved in the front-rear direction relative to the rear wheel side. Note that in the environmental testing device disclosed in Patent Document 1, only the front wheel side can be moved in the front-rear direction, and the rear wheel side cannot be moved. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 4-256819 Summary of the Invention [Problem to be solved by the invention]

[0005] The environmental testing device disclosed in Patent Document 1 can move the wheel placement portion in accordance with the size of the vehicle, and can perform environmental testing on various vehicles with different axle spacing as test subjects. However, the environmental testing device disclosed in Patent Document 1 has a limited range in which the spacing between the wheel rests can be varied. That is, as mentioned above, there is an opening in the floor of the test room, and a lid is required to cover the opening. In Patent Document 1, a movable panel constitutes a lid to cover the opening in the floor, and the movable panel moves together with the wheel rest. If the front wheel rest is shifted backward, the movable panel collides with the lid of the rear wheel rest. Therefore, in the environmental testing device of Patent Document 1, it is difficult to significantly change the spacing between the wheel mounting portions. The present invention is intended to solve the above-mentioned problems, and aims to provide an environmental testing device that can change the spacing between wheel mounting sections more significantly than before and can test both large and small vehicles. [Means for solving the problem]

[0006] An embodiment for solving the above-mentioned problems is an environmental testing apparatus comprising a test chamber that can be adjusted to a desired environment, a machine room located below the test chamber, and a mechanical testing device having a wheel mounting portion on which vehicle wheels can be placed, wherein a first opening is provided on the floor of the test chamber, and a lid member covering the first opening is provided, the lid member has a first lid member and a second lid member that can move together with the first lid member, the first lid member has a second opening, the wheel mounting portion can be exposed from the second opening and can move horizontally together with the lid member, and the lid member has a total length of the first lid member and the second lid member that expands and contracts in the fore-and-aft direction of the vehicle.

[0007] In the environmental testing device of this embodiment, a first opening is provided on the floor of the test chamber, and a cover member is provided on the floor to cover the first opening. The cover member has a first cover member and a second cover member. The second cover member can move horizontally together with the first cover member. The first cover member is provided with a second opening through which the wheel mounting portion can be exposed. Here, "exposable" means that it can be made visible or touchable from the outside. "Exposable" also includes the case where the wheel mounting portion can be made to protrude from the second opening. In the environmental testing device of this embodiment, the total length of the cover member consisting of the first cover member and the second cover member expands and contracts in the front-rear direction of the vehicle. Therefore, for example, when one wheel mounting portion is moved closer to the other wheel mounting portion in the front-rear direction, the overall length of the cover member can be shortened to prevent a collision. Also, when one wheel mounting portion is moved away from the other wheel mounting portion, the overall length of the cover member can be extended to cover the first opening provided in the floor surface. In addition, in Patent Document 1, there is a slide table between the front and rear movable panels, and the slide table has two comb-shaped parts that can fit together and expand and contract. The slide table disclosed in Patent Document 1 is a bridge that is placed between the front and rear movable panels to allow vehicles to pass, and does not close the first opening provided in the floor surface.

[0008] Another aspect for solving a similar problem is an environmental testing apparatus used together with a mechanical testing apparatus having a wheel mounting portion on which vehicle wheels can be placed, the environmental testing apparatus having a test chamber that can be adjusted to a desired environment, a first opening provided on the floor of the test chamber, and a lid member covering the first opening, the lid member having a first lid member and a second lid member that can move together with the first lid member, the first lid member having a second opening for exposing the wheel mounting portion, the lid member being movable in a horizontal direction, and the lid member having a total length of the first lid member and the second lid member that can be expanded and contracted in the fore-and-aft direction of the vehicle.

[0009] In the environmental testing device of this embodiment, the test chamber has a first opening on the floor and a cover member that covers the first opening on the floor. The cover member has a first cover member and a second cover member. The second cover member can move horizontally together with the first cover member. The first cover member has a second opening that can expose the wheel placement portion. In the environmental testing device of this embodiment, the total length of the cover member consisting of the first cover member and the second cover member expands and contracts in the front-rear direction of the vehicle. Therefore, for example, when one wheel mounting portion is moved closer to the other wheel mounting portion in the front-rear direction, the overall length of the cover member can be shortened to prevent a collision. Also, when one wheel mounting portion is moved away from the other wheel mounting portion, the overall length of the cover member can be extended to cover the first opening provided in the floor surface.

[0010] In each of the above-mentioned aspects, it is preferable that the second cover member has a first engagement portion and a second engagement portion, the first cover member has a third engagement portion and a fourth engagement portion, the second cover member overlaps with the first cover member and is movable linearly in the fore-and-aft direction of the vehicle within a range from a position where the first engagement portion and the third engagement portion engage with each other to a position where the second engagement portion and the fourth engagement portion engage with each other, the first cover member is movable in the fore-and-aft direction of the vehicle by a power, the second cover member is biased against the first cover member to move to one side in the fore-and-aft direction of the vehicle when the first engagement portion and the third engagement portion are engaged with each other, and the second cover member is biased against the first cover member to move to the other side in the fore-and-aft direction of the vehicle when the second engagement portion and the fourth engagement portion are engaged with each other.

[0011] The first and second engagement portions of the second cover member may be substantially the same material. The third and fourth engagement portions of the first cover member may also be substantially the same material. In the environmental testing device of this aspect, the second cover member has a first engagement portion and a second engagement portion. The first cover member has a third engagement portion and a fourth engagement portion. The second cover member is placed on the first cover member and can move linearly in the front-rear direction of the vehicle within a range from a position where the first engagement portion of the second cover member engages with the third engagement portion of the first cover member to a position where the second engagement portion of the second cover member engages with the fourth engagement portion of the first cover member. The first cover member is moved in the front-to-rear direction of the vehicle by power. The second cover member is placed on the first cover member and is moved by being pushed by the first cover member. That is, the second cover member is biased against the first cover member by the first cover member moving in one direction in the front-rear direction of the vehicle while the first engagement portion of the second cover member and the third engagement portion of the first cover member are engaged, and moves to one side in the front-rear direction of the vehicle. Similarly, the second cover member is biased against the first cover member by the first cover member moving in the other direction in the front-rear direction of the vehicle while the second engagement portion of the second cover member and the fourth engagement portion of the first cover member are engaged, and moves to the other side in the front-rear direction of the vehicle. In the environmental testing device of this embodiment, the second lid member is biased by the first lid member to move, changing the overall length of the lid member, so no special drive source is required to move the second lid member.

[0012] In each of the above-mentioned aspects, the overall length of the lid member changes as the amount of protrusion of the second lid member from the first lid member in the fore-and-aft direction changes, and the lid member is in one of a first state in which the amount of protrusion of the second lid member is minimum, a second state in which the amount of protrusion of the second lid member is maximum, and a third state between the first state and the second state, and it is desirable that the lid member be able to move in the fore-and-aft direction of the vehicle while changing the second lid member to any of the first state, the second state, or the third state by movement of the first lid member.

[0013] In the environmental testing device of this embodiment, the cover member can be changed to a first state, a second state, or a third state by moving the first cover member, and the overall length of the cover member changes depending on the state, so that the cover member can be moved while changing its overall length.

[0014] In each of the above-mentioned aspects, it is desirable that the second cover member has a smaller width than the first cover member.

[0015] In the environmental testing apparatus of this embodiment, since the second lid member is narrower than the first lid member, the second lid member can be housed within the first lid member.

[0016] In each of the above aspects, it is desirable to have a guide member that guides the movement of the second cover member in the front-rear direction of the vehicle.

[0017] According to this aspect, the second lid member moves smoothly. That is, the second lid member can move linearly relative to the first lid member in the front-rear direction of the vehicle.

[0018] It is desirable that the guide member also functions as a suppression portion that suppresses movement of the second cover member in the width direction of the vehicle.

[0019] According to this aspect, the second lid member moves integrally with the first lid member in the width direction of the vehicle.

[0020] In each of the above-mentioned aspects, it is desirable that the lid member is movable in the width direction of the vehicle, and that when the lid member is moved in the width direction of the vehicle, the lid member moves in the width direction of the vehicle while the second lid member maintains its relative position with respect to the first lid member.

[0021] According to this aspect, the second lid member moves integrally with the first lid member in the width direction of the vehicle, and the second lid member can move linearly relative to the first lid member in the front-rear direction of the vehicle.

[0022] In each of the above-mentioned aspects, it is desirable to have a wheel mounting portion and a cover member for front wheels on which the front wheels of the vehicle are mounted, and a wheel mounting portion and a cover member for rear wheels on which the rear wheels of the vehicle are mounted, and both the wheel mounting portion for the front wheels and the wheel mounting portion for the rear wheels are capable of moving horizontally together with the cover member.

[0023] The environmental testing device disclosed in Patent Document 1 moves the wheel mounting member on the front wheel side to adjust the distance between the front and rear wheel mounting members to the wheelbase of the vehicle under test, so there is a concern that the center position of the vehicle in the test chamber may change depending on the size of the vehicle. In contrast, the environmental testing device of this embodiment can move the front and rear wheel support members, so the center position can be kept constant regardless of the size of the vehicle, and the vehicle can be placed in the center of the test room.

[0024] In each of the above-mentioned aspects, it is desirable to have at least two of the wheel mounting portions and the lid members corresponding to the wheel mounting portions, and to arrange the at least two lid members so that the second lid members of each of the wheel mounting portions face each other.

[0025] According to this aspect, the range in which the spacing between the wheel mounting portions can be varied can be made wider.

[0026] In each of the above-mentioned aspects, it is desirable that a member with a low coefficient of friction is attached to the contact surface of the first cover member and / or the second cover member with another member.

[0027] In the environmental testing apparatus of this embodiment, a member with a low friction coefficient is attached to the contact surface of the first lid member and / or the second lid member with other members, so that sliding friction is small and the first lid member and the second lid member can be moved smoothly. Effect of the Invention

[0028] The environmental testing apparatus of the present invention allows the spacing between the wheel mounting portions to be changed to a greater extent, and is applicable to a wide range of vehicle sizes. [Brief description of the drawings]

[0029] [Figure 1] FIG. 2 is a cross-sectional view of an environmental testing device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of the environmental testing device of FIG. [Diagram 3] FIG. 2 is a perspective view of a mechanical test fixture of the environmental test apparatus of FIG. 1. [Figure 4] 2 is a perspective view of the front end side of the cover member of the environmental testing device of FIG. 1 with the pressing plate removed. FIG. [Diagram 5] 2 is an exploded perspective view of a cover member of the environmental testing device of FIG. 1. [Figure 6] 2 is a cross-sectional view of a main body lid (first lid member) of the environmental testing device of FIG. [Figure 7] 13(a), (b), and (c) are explanatory diagrams explaining the positional relationship between the main lid (first lid member) and auxiliary lid (second lid member) of the lid member, and the engagement relationship between the push side engagement portion (third engagement portion), the pushed side engagement portion (first engagement portion), the pull side engagement portion (fourth engagement portion), and the pulled side engagement portion (second engagement portion). [Figure 8]FIG. 2 is a planar layout of the environmental testing device in FIG. 1, in which (a) shows the state in which the four wheel mounting parts are closest in the longitudinal direction of the vehicle, (b) shows the state in which the four wheel mounting parts are in their normal positions, and (c) shows the state in which the four wheel mounting parts are furthest apart in the longitudinal direction of the vehicle. [Figure 9] FIG. 2 is a matrix of plan views showing the positional relationship between one of the cover members of the environmental testing apparatus in FIG. 1 and a first opening provided in the floor, in which column (a) shows the state in which the cover member has moved in the width direction of the vehicle with the cover member advanced, column (b) shows the state in which the cover member has moved in the width direction of the vehicle with the cover member in its normal position in the fore-and-aft direction, column (c) shows the state in which the cover member has moved in the width direction of the vehicle with the cover member retreated, row (d) shows the state in which the cover member has moved forward and backward with the cover member shifted toward the top of the drawing in the width direction, row (e) shows the state in which the cover member has moved forward and backward with the cover member in the center of the drawing in the width direction, and row (f) shows the state in which the cover member has moved forward and backward with the cover member shifted toward the bottom of the drawing in the width direction. [Figure 10] 2A to 2I are plan and cross-sectional views showing the positional relationship between one cover member of the environmental testing apparatus in FIG. 1 and a first opening provided in the floor, where (a) to (i) show the state in which the cover member has been moved in the fore-and-aft direction of the vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Hereinafter, an embodiment of the present invention will be described. The environmental test apparatus 1 of this embodiment is intended for testing four-wheeled vehicles such as passenger cars, freight cars, and buses, and two-wheeled vehicles such as motorcycles. The environmental test apparatus 1 of this embodiment is a composite environmental test apparatus, and includes a test chamber 2 that creates a desired environment, and a mechanical test device 3 that applies an external force to the vehicle 100.

[0031] In the environmental test device 1, a pit serving as a machine room 5 is provided below the test chamber 2, as shown in FIGS. The test chamber 2 is a room surrounded by insulating walls, and has a volume capable of accommodating large vehicles such as buses. In this embodiment, the floor plate 13 constituting the floor surface 16 of the test chamber 2 also has insulating properties. That is, the floor plate 13 has a three-layer structure (not shown), with the front and back surfaces being made of metal plates, and an insulating member is sandwiched between the metal plates.

[0032] The test chamber 2 is provided with an air conditioner 8. The air conditioner 8 is similar to known environmental testing equipment, and includes a heater, a cooling device, and a humidifier (not shown), and adjusts the temperature and humidity environments in the test chamber 2. Note that the air conditioner 8 may not include a humidifier and may adjust only the temperature environment. The environmental testing device 1 of this embodiment can adjust the temperature and humidity in the test chamber 2 by the air conditioner 8. The test chamber 2 can be adjusted to a desired temperature and humidity as in this embodiment, but in addition to or instead of a temperature environment, a sunlight environment, snowfall, frost, rain, wind, etc. may be simulated.

[0033] In the environmental testing device 1 of this embodiment, four floor holes (first openings) 10 are provided in the floor plate 13. That is, in the environmental testing device 1 of this embodiment, the floor holes (first openings) 10 are provided in four places on the floor surface 16. All of the floor holes (first openings) 10 are rectangular, and are formed with their long sides facing in the longitudinal direction of the vehicle 100.

[0034] As described above, the machine room 5 is provided below the test room 2, and the four mechanical testing devices 3 are installed in the machine room 5. The mechanical testing device 3 employed in this embodiment is a vibration testing device that vibrates the vehicle 100. The mechanical testing device 3 has a main body 12 , a moving means 15 , and a cover member 20 . The main body 12 of the mechanical testing device 3 is a known vibration device, and has a wheel placement portion 21 on which a wheel 101 of a vehicle 100 as a test subject is placed. The wheel mounting portion 21 is substantially rectangular and is provided on the top of the vibration shaft 22. The wheel mounting portion 21 moves up and down and left and right by the vibration shaft 22 to vibrate the vehicle 100. The mechanical testing device 3 also has a lifting mechanism (not shown) that can raise and lower the wheel placement portion 21 .

[0035] The moving means 15 has a lateral table 23 and a longitudinal table 25. As shown in Fig. 3, the lateral table 23 is placed on a lateral rail 27 and moves in the width direction of the vehicle 100 along the lateral rail 27. The longitudinal table 25 is placed on a longitudinal rail 28 and moves in the front-rear direction of the vehicle 100 along the longitudinal rail 28.

[0036] The cover member 20 is a member specific to this embodiment and will be described in detail below. 1, 3, 4, 5 and 7, the lid member 20 is composed of a main lid (first lid member) 30 and an auxiliary lid (second lid member) 32. Note that Fig. 7 is an explanatory diagram in which the main lid (first lid member) 30 and the auxiliary lid (second lid member) 32 are modeled to explain the operation of the main lid (first lid member) 30 and the auxiliary lid (second lid member) 32 and the engagement relationship between them, and many components have been omitted. The main body lid (first lid member) 30 is a plate having a rectangular planar shape. Although not shown, the main body lid (first lid member) 30 has a three-layer structure, with a heat insulating member interposed between the metal plates.

[0037] A retractable opening (second opening) 33 for allowing the wheel placement portion 21 to retract is formed in the center of the main body lid (first lid member) 30. In this embodiment, the retractable opening (second opening) 33 has a substantially rectangular planar shape.

[0038] A recess 35 having a substantially rectangular planar shape is provided on the front surface side of the main body lid (first lid member) 30 at one end in the longitudinal direction. As shown in Fig. 5, the recess 35 has vertical sides 36a, 36b extending in the longitudinal direction of the main body lid (first lid member) 30, a rear side 40 extending in the lateral direction of the main body lid (first lid member) 30, and a side 41 opposite the rear side 40. The vertical sides 36a, 36b and the rear side 40 each extend vertically to form a wall surface, and the wall surface and a floor surface 37 form the recess 35. The side of the recess 35 opposite the rear side 40 is open. The open end side of the floor 37 of the recess 35 is slightly cut in. That is, the side 41 of the floor 37 on the open end side of the recess 35 is located slightly recessed from one end side of the main body lid (first lid member) 30 in the longitudinal direction. In this embodiment, the recess 35 of the main body lid (first lid member) 30 functions as a second lid member accommodating portion that accommodates at least a portion of the auxiliary lid (second lid member) 32 in the main body lid (first lid member) 30. The portion of the auxiliary lid (second lid member) 32 that can be accommodated in the recess 35 of the main body lid (first lid member) 30, which serves as the second lid member accommodating portion, is referred to as an accommodated portion. The accommodated portion may be a portion or the entirety of the auxiliary lid (second lid member) 32. In this embodiment, the area of ​​the auxiliary lid (second lid member) 32 excluding the ridges 52 is the contained portion.

[0039] 4, 5, and 7, vertical sides 36a, 36b have body lid side protrusions 45 that protrude inward on the open end side of recess (second lid member accommodating portion) 35. Body lid side protrusions 45 make the length of the open end portion of recess 35 shorter than the length of rear side 40, narrowing the open portion of recess 35. In this embodiment, the rear surface side of body lid side protrusion 45 functions as pull side engagement portion (fourth engagement portion) 47. A main body lid guide roller 46 is provided on the upper surface of the main body lid protrusion 45. The main body lid guide roller 46 has a rotation axis that is vertically disposed. Further, the inner side 40 of the recess 35 is stepped, and the stepped portion functions as a pushing-side engaging portion (third engaging portion) 43.

[0040] A main body lid guide 48 is provided around the recess 35. The main body lid guide 48 is linear and provided along the vertical sides 36a, 36b of the recess 35. As shown in Figure 3, a pressing plate 68 is attached to the upper surface of the main body lid guide 48. 6, a sliding member 50 is provided on the back surface of the main body lid (first lid member) 30. The sliding member 50 is a square rod-shaped member made of a material with a low friction coefficient such as oil-less metal, and is attached to the four sides of the back surface of the main body lid (first lid member) 30.

[0041] The auxiliary lid (second lid member) 32 is a rectangular plate. That is, the auxiliary lid (second lid member) 32 has a front side edge 71, a rear side edge 56, and side edges 57 and 58. Near the front side edge 71 of the auxiliary lid (second lid member) 32, as shown in FIG. 5, there is a protrusion 52 on the lower part, which is thicker (higher) than other parts. The lower surface of the protrusion 52 contacts the floor surface 16 of the testing chamber 2. The protrusions 52 may be made of a material with a low coefficient of friction, such as an oil-less metal.

[0042] As shown in Figs. 5 and 7, the auxiliary lid (second lid member) 32 is formed with an auxiliary lid-side protrusion 51 that protrudes outward on the rear side edge 56 side. 5 and 7, in this embodiment, the surface on the rear side edge 56 side of the auxiliary-lid-side protrusion 51 functions as the push-side engagement portion (first engagement portion) 53. Also, as in Fig. 5 and 7, the surface on the front side edge 71 side of the auxiliary-lid-side protrusion 51 functions as the pull-side engagement portion (second engagement portion) 55. The auxiliary lid side protrusion 51 is provided with an auxiliary lid side guide roller 65. The auxiliary lid side guide roller 65 has a rotation axis that is vertically disposed. An opening 70 is provided in the auxiliary cover side protrusion 51, and a roller 60 is provided in the opening 70. The rotation axis of the roller 60 is horizontal.

[0043] An auxiliary lid side guide 67 is provided around the periphery of the auxiliary lid (second lid member) 32. The auxiliary lid side guide 67 is linear, and is provided along the side edges 57, 58.

[0044] 3 and 7, the lid member 20 has an auxiliary lid (second lid member) 32 installed in a recess 35 of a main body lid (first lid member) 30. The pressing plate 68 is a member for preventing the auxiliary lid (second lid member) 32 from floating up or coming off.

[0045] The width of most of the auxiliary lid (second lid member) 32 is considerably narrower than the width of the recess 35. In addition, the width of the rear side edge 56 of the auxiliary lid (second lid member) 32 is slightly narrower than the width of the recess 35. Therefore, the auxiliary lid (second lid member) 32 fits into the recess 35 of the main body lid (first lid member) 30. The auxiliary lid side guide roller 65 of the auxiliary lid (second lid member) 32 engages with the main body lid side guide 48 of the main body lid (first lid member) 30. The main body lid side guide roller 46 of the main body lid (first lid member) 30 contacts the auxiliary lid side guide 67 of the auxiliary lid (second lid member) 32. The rollers 60 of the auxiliary lid (second lid member) 32 contact the floor surface 37 of the recess 35 of the main lid (first lid member) 30. The protrusion 52 on the leading side edge 71 of the auxiliary lid (second lid member) 32 is exposed from the recess 35 of the main lid (first lid member) 30.

[0046] As described above, the auxiliary lid side guide roller 65 of the auxiliary lid (second lid member) 32 engages with the main lid side guide 48 of the main body lid (first lid member) 30, and the main body lid side guide roller 46 of the main body lid (first lid member) 30 contacts the auxiliary lid side guide 67 of the auxiliary lid (second lid member) 32. Therefore, the auxiliary lid (second lid member) 32 has a degree of freedom only in the direction in which it protrudes and retracts relative to the main body lid (first lid member) 30 (the longitudinal direction of the main body lid (first lid member) 30), and has no degree of freedom in the width direction of the lid member 20 (the transverse direction of the main body lid (first lid member) 30).

[0047] As shown in FIG. 7, in this embodiment, the auxiliary lid (second lid member) 32 can move linearly in the front-rear direction of the vehicle 100 within a range from the position where the pushed side engagement portion (first engagement portion) 53 and the pushed side engagement portion (third engagement portion) 43 shown in (a) engage with each other to the position where the pulled side engagement portion (second engagement portion) 55 and the pulled side engagement portion (fourth engagement portion) 47 engage with each other as shown in (c), and the auxiliary lid (second lid member) 32 cannot move relative to the vehicle 100 any further. That is, the amount of protrusion of the auxiliary lid (second lid member) 32 in the front-rear direction of the vehicle 100 from the main body lid (first lid member) 30 changes as shown in FIG. 7(a) to FIG. 7(c), and the overall length of the lid member 20 changes. At this time, at least a part of the accommodated portion of the auxiliary lid (second lid member) 32 overlaps with the main body lid (first lid member) 30. As will be described later, it is the main body lid (first lid member) 30 that moves, and for example in the state of FIG. 7(b) the auxiliary lid (second lid member) 32 is substantially stationary.

[0048] 7(a) shows a state in which the accommodated portion of the auxiliary lid (second lid member) 32 is accommodated in the recess (second lid member accommodation portion) 35 of the main lid (first lid member) 30, and the amount of protrusion of the auxiliary lid (second lid member) 32 is minimal (first state). In the first state, the pushed-side engaging portion (first engaging portion) 53 of the auxiliary lid (second lid member) 32 is engaged with the pushed-side engaging portion (third engaging portion) 43 of the main lid (first lid member) 30. On the other hand, in this state, there is a distance between the pulled-side engaging portion (second engaging portion) 55 of the auxiliary lid (second lid member) 32 and the pulled-side engaging portion (fourth engaging portion) 47 of the main lid (first lid member) 30, and the two are in a non-engaged state.

[0049] FIG. 7(b) shows a state in which a part of the accommodated portion of the auxiliary lid (second lid member) 32 is accommodated in the recess (second lid member accommodation portion) 35 of the main lid (first lid member) 30. This state is a state (third state) in which the protruding amount of the auxiliary lid (second lid member) 32 is between the minimum state (first state) and the maximum state (second state) described later. FIG. 7(b) shows a state in which the auxiliary lid (second lid member) 32 is relatively moved from the main lid (first lid member) 30, and the pushed side engaging portion (first engaging portion) 53 of the auxiliary lid (second lid member) 32 is not engaged with the pushed side engaging portion (third engaging portion) 43 of the main lid (first lid member) 30. In addition, the pulled side engaging portion (second engaging portion) 55 of the auxiliary lid (second lid member) 32 is not engaged with the pulled side engaging portion (fourth engaging portion) 47 of the main lid (first lid member) 30.

[0050] 7(c) shows a state in which the accommodated portion of the auxiliary lid (second lid member) 32 is not substantially accommodated in the recess (second lid member accommodating portion) 35 of the main body lid (first lid member) 30. In other words, the auxiliary lid (second lid member) 32 protrudes to its maximum (second state), and the accommodated portion of the auxiliary lid (second lid member) 32 slightly overlaps with the recess (second lid member accommodating portion) 35. 7(c) shows the lid member 20 in its maximum extended state, with the pushed-side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 disengaged from the pushed-side engagement portion (third engagement portion) 43 of the main body lid (first lid member) 30. On the other hand, when the lid member 20 is in its maximum extended state, the pulled-side engagement portion (second engagement portion) 55 of the auxiliary lid (second lid member) 32 and the pulled-side engagement portion (fourth engagement portion) 47 of the main body lid (first lid member) 30 are engaged.

[0051] The main body lid side guide 48 and the auxiliary lid side guide roller 65 are guide members that integrally support the auxiliary lid (second lid member) 32 in the width direction of the vehicle 100 while allowing the auxiliary lid (second lid member) 32 to move in the front-rear direction of the vehicle 100 relative to the main body lid (first lid member) 30. That is, the lid member 20 employed in the embodiment has a guide member that integrally supports the auxiliary lid (second lid member) 32 in the width direction of the vehicle 100 while allowing it to move in the front-rear direction of the vehicle 100 relative to the main body lid (first lid member) 30. In the environmental testing apparatus 1 of this embodiment, the lid member 20 can be moved in the width direction of the vehicle 100, and when the lid member 20 is moved in the width direction of the vehicle 100, the auxiliary lid (second lid member) 32 moves in the width direction of the vehicle 100 while maintaining its relative position with respect to the main body lid (first lid member) 30.

[0052] As described above, the mechanical testing device 3 has the main body 12, the moving means 15, and the cover member 20. The main body 12 of the mechanical testing device 3 is attached to the moving means 15. In addition, the cover member 20 is integrally fixed to the main body 12 of the mechanical testing device 3 by a connecting member 62, as shown in FIG. As described above, the moving means 15 has the lateral table 23 and the longitudinal table 25, and the lateral table 23 moves in the width direction of the vehicle 100, and the longitudinal table 25 moves in the front-rear direction of the vehicle 100. In the mechanical testing device 3, the main body 12 is attached to the moving means 15, and the main body 12 can be moved in the width direction of the vehicle 100 and in the front-rear direction of the vehicle 100. 1, the cover member 20 is fixed integrally to the main body 12 of the mechanical testing device 3 by a connecting member 62, and the cover member 20 moves horizontally together with the main body 12 in the width direction and the front-rear direction of the vehicle 100. More specifically, the main body cover (first cover member) 30 is fixed to the main body 12 of the mechanical testing device 3 by a connecting member 62, and moves horizontally together with the main body 12 in the width direction and the front-rear direction of the vehicle 100.

[0053] Next, the positional relationship of each member constituting the environmental test device 1 will be described. In the environmental testing device 1 of this embodiment, as shown in Figs. 1 and 2, there is a pit serving as a machine room 5 below the test chamber 2, and four mechanical testing devices 3 are installed in the machine room 5. The four mechanical testing devices 3 are installed at positions corresponding to four floor holes (first openings) 10 provided in the floor surface 16 of the test room 2 . A lid member 20 is placed on the floor hole (first opening) 10, and the floor hole (first opening) 10 is covered by the lid member 20. The lid member 20 is fixed integrally to the main body 12 of the mechanical testing device 3 by a connecting member 62, as shown in Fig. 1. The lid member 20 is larger than the floor hole (first opening) 10, and a portion of the vibration axis 22 of the mechanical testing device 3 passes through a portion of the floor hole (first opening) 10. The wheel mounting portion 21 of the mechanical testing device 3 is located at a position facing the projection opening (second opening) 33 of the main body lid (first lid member) 30. In other words, the wheel mounting portion 21 is located at a position where it can be exposed from the projection opening (second opening) 33 of the main body lid (first lid member) 30.

[0054] The orientation of each of the cover members 20 is as shown in Fig. 8. That is, the cover members 20 arranged in the front-rear direction of the vehicle 100 are installed so that the auxiliary covers (second cover members) 32 face each other. For ease of explanation, of the four lid members 20, those on the front wheel side of the vehicle 100 will be referred to as front wheel lid members 20Fa and 20Fb, and those on the rear wheel side will be referred to as rear wheel lid members 20Ra and 20Rb. In this embodiment, the front wheel lid member 20Fa and the rear wheel lid member 20Ra are aligned in the fore-aft direction of the vehicle 100, and the front wheel lid member 20Fb and the rear wheel lid member 20Rb are aligned in the fore-aft direction of the vehicle 100. In the environmental testing device 1 of this embodiment, the auxiliary lid (second lid member) 32 of the front wheel lid member 20Fa and the auxiliary lid (second lid member) 32 of the rear wheel lid member 20Ra are installed facing each other. Also, the auxiliary lid (second lid member) 32 of the front wheel lid member 20Fb and the auxiliary lid (second lid member) of the rear wheel lid member 20Rb are installed facing each other.

[0055] Next, a description will be given of the operation of the environmental testing device 1. First, the operation of each of the mechanical testing devices 3 and the cover member 20 will be described. As described above, the mechanical testing device 3 has the moving means 15 and can move forward, backward, left and right. The wheel mounting portion 21 and the lid member 20 also move horizontally forward, backward, left and right with the movement of the main body portion 12. However, since the vibration axis 22 of the mechanical testing device 3 passes through the floor hole (first opening) 10, the wheel mounting portion 21 can only move horizontally within the range of the floor hole (first opening) 10.

[0056] The lid member 20 is in contact with the floor surface 16 of the test chamber 2 as shown in Fig. 1, but a sliding member 50 made of a material with a low friction coefficient such as oil-less metal is attached to the back surface of the main body lid (first lid member) 30 as shown in Fig. 6. Therefore, the lid member 20 slides easily against the floor surface 16, and moves smoothly horizontally using only the power of the moving means 15. In the environmental testing device 1 of this embodiment, a unique operation is performed when the wheel placement portion 21 and the lid member 20 are moved horizontally in the fore-aft direction of the vehicle 100. This operation will be described with reference to Fig. 10. In Fig. 10, the left-right direction is the fore-aft direction of the vehicle, and movement of the lid member 20 to the left is referred to as forward movement, and movement to the right is referred to as backward movement.

[0057] 10(a) shows the normal state (first state), in which the auxiliary lid (second lid member) 32 is fitted into the recess 35 (second lid member housing portion) of the main lid (first lid member) 30. In the normal state, the pushed-side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 contacts the pushed-side engagement portion (third engagement portion) 43 of the main lid (first lid member) 30. That is, in the normal state, the surface (pushed-side engagement portion (first engagement portion) 53) on the rear side edge 56 side of the auxiliary lid side protrusion 51 engages with the rear side 40 (pushing-side engagement portion (third engagement portion) 43) of the recess 35 of the main lid (first lid member) 30. That is, in the normal state, the relationship between the engagement portions 43, 47, 53, 55 is as shown in Fig. 7(a), where the pushed-side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 is engaged with the pushed-side engagement portion (third engagement portion) 43 of the main lid (first lid member) 30. On the other hand, there is a distance between the pulled-side engagement portion (second engagement portion) 55 of the auxiliary lid (second lid member) 32 and the pulled-side engagement portion (fourth engagement portion) 47 of the main lid (first lid member) 30, and the two are in a non-engaged state.

[0058] In this state, when the moving means 15 is driven to move the lid member 20 forward as shown in Fig. 10(b), the pushed-side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 is pushed by the pushing-side engagement portion (third engagement portion) 43 of the main body lid (first lid member) 30, and the auxiliary lid (second lid member) 32 moves forward integrally with the main body lid (first lid member) 30 while maintaining the first state. In this state, the overall length of the lid member 20 does not change. In other words, the combined overall length of the main body lid (first lid member) and auxiliary lid (second lid member) 32 does not change from the normal state. 10(c), the cover member 20 reaches its limit on the forward movement side. In this state, the overall length of the cover member 20 does not change.

[0059] Next, when the moving means 15 is driven to move the lid member 20 backward as shown in FIG. 10(d), the auxiliary lid (second lid member) 32 remains in place and only the main lid (first lid member) 30 moves backward (third state). The auxiliary lid (second lid member) 32 has a protrusion 52 at its tip, and the underside of the protrusion 52 contacts the floor surface 16 of the testing chamber 2. Therefore, sliding friction occurs between the auxiliary lid (second lid member) 32 and the floor surface 16, and resistance is large. Meanwhile, the rollers 60 of the auxiliary lid (second lid member) 32 contact the main body lid (first lid member) 30. Therefore, rolling friction occurs between the auxiliary lid (second lid member) 32 and the main body lid (first lid member) 30, and resistance is small. Therefore, the auxiliary lid (second lid member) 32 remains in place, and only the main lid (first lid member) 30 moves back. That is, the relationship between the main lid (first lid member) 30 and the auxiliary lid (second lid member) 32 becomes the third state.

[0060] To explain in detail, the relationship between the engagement parts 43, 47, 53, 55 in the state of Fig. 10(c) (before retreat) is the same as the normal state of Fig. 7(a), and the pushed-side engagement part (first engagement part) 53 of the auxiliary lid (second lid member) 32 is engaged with the pushed-side engagement part (third engagement part) 43 of the main lid (first lid member) 30. When the moving means 15 is driven in this state to retreat the lid member 20 as shown in Fig. 10(d), the pushed-side engagement part (first engagement part) 53 of the auxiliary lid (second lid member) 32 moves away from the pushed-side engagement part (third engagement part) 43 of the main lid (first lid member) 30. Also, a distance is created between the pulled-side engagement part (second engagement part) 55 of the auxiliary lid (second lid member) 32 and the pulled-side engagement part (fourth engagement part) 47 of the main lid (first lid member) 30, and the two are in a disengaged state. In other words, the surface (pull side engagement portion (second engagement portion) 55) on the leading side edge 71 side of the auxiliary lid side protrusion 51 of the auxiliary lid (second lid member) 32 is separated from the surface (pull side engagement portion (fourth engagement portion) 47) on the rear side 40 side of the main body lid side protrusion 45.

[0061] Therefore, the engagement portions 53, 55 of the auxiliary lid (second lid member) 32 are not engaged with any of the engagement portions 43, 47 of the main lid (first lid member) 30, and when the moving means 15 is driven to move the lid member 20 back as shown in Figure 10 (d), the auxiliary lid (second lid member) 32 remains in place and only the main lid (first lid member) 30 moves back. In this state, the entire length of the cover member 20 is extended. 10(e), the pull-side engagement portion (second engagement portion) 55 of the auxiliary lid (second lid member) 32 reaches the position of the pull-side engagement portion (fourth engagement portion) 47 of the main lid (first lid member) 30. In this state, the auxiliary lid (second lid member) 32 is pulled out to its maximum extent from the main lid (first lid member) 30, and the overall length of the lid member 20 is extended to its maximum (second state).

[0062] 7(c), the relationship between the engagement portions 43, 47, 53, 55 is such that the lid member 20 is fully extended and the pushed-side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 is disengaged from the pushed-side engagement portion (third engagement portion) 43 of the main lid (first lid member) 30. On the other hand, when the lid member 20 is fully extended, the pulled-side engagement portion (second engagement portion) 55 of the auxiliary lid (second lid member) 32 is engaged with the pulled-side engagement portion (fourth engagement portion) 47 of the main lid (first lid member) 30.

[0063] Returning to the explanation of Figure 10, in this state, when the moving means 15 is driven to retract the lid member 20 as shown in Figure 10 (f), the pull side engagement portion (second engagement portion) 55 of the auxiliary lid (second lid member) 32 engages with the pull side engagement portion (fourth engagement portion) 47 of the main body lid (first lid member) 30, so that the lid member 20 moves backwards overall with its entire length fully extended.

[0064] 10(g), the cover member 20 reaches its limit on the retreat side. Even in this state, the cover member 20 maintains its maximum extended length.

[0065] The most retracted state in Figure 10(g) is the starting position. In this state, when the moving means 15 is driven to move the lid member 20 forward as shown in Figure 10(h), the pushed side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 and the pushing side engagement portion (third engagement portion) 43 of the main body lid (first lid member) 30 are disengaged, so the auxiliary lid (second lid member) 32 remains in place and only the main body lid (first lid member) 30 moves forward, and the overall length of the lid member 20 is shortened. Finally, as shown in FIG. 10(i), the cover member 20 returns to the normal position.

[0066] Next, the overall operation of the environmental testing device 1 will be described. The environmental testing device 1 of this embodiment applies an external force to the vehicle 100 while exposing the vehicle 100 to a predetermined environment. In the environmental test device 1 of this embodiment, the vehicle 100 is introduced into the test chamber 2, and each wheel 101 is placed on the wheel mounting portion 21, and the wheel 101 is fixed to the wheel mounting portion 21 by a jig (not shown). Next, the wheel mounting portion 21 is raised, and the wheel mounting portion 21 is made to protrude from the intrusion / retraction opening (second opening) 33 of the lid member 20. In this state, the air conditioner 8 is started to create a specific environment in the test room 2. Also, depending on the test conditions, artificial light is irradiated and environments such as snowfall, frost, rain, wind, etc. are simulated. Then, an external force is applied to the vehicle 100 by the mechanical test device 3.

[0067] In the environmental test device 1 of this embodiment, the position of the wheel placement portion 21 is aligned with the position of the wheels 101 of the vehicle 100 before the vehicle 100 is introduced. That is, when testing a vehicle 100 with a short axle spacing such as a light passenger car, the wheel mounting portion 21 for supporting the rear wheels is moved forward, and the wheel mounting portion 21 for supporting the front wheels is moved backward, thereby shortening the distance between the front and rear wheel mounting portions 21. Conversely, when testing a vehicle 100 with a long axle spacing such as a bus, the wheel rest 21 for supporting the rear wheels is moved rearward and the wheel rest 21 for supporting the front wheels is moved forward, thereby widening the distance between the front and rear wheel rests 21.

[0068] In the environmental testing device 1 of this embodiment, the lid member 20 expands and contracts, so even if the front and rear wheel mounting portions 21 are brought closer together, the front and rear lid members 20 do not interfere with each other. Even if the front and rear wheel mounting portions 21 are brought farther apart, the floor hole (first opening) 10 can be covered with the lid member 20, and the floor hole (first opening) 10 is not exposed.

[0069] 8(b) shows the arrangement of the wheel placement portion 21 and the lid member 20 when testing, for example, a standard-sized automobile. When testing a standard-sized automobile, the positions of the lid members 20 are such that the front wheel lid members 20Fa, 20Fb and the rear wheel lid members 20Ra, 20Rb face each other with a certain distance between them. In this state, each lid member 20 is in a normal state, and the auxiliary lid (second lid member) 32 fits into the recess 35 of the main body lid (first lid member) 30. To change this state to a state as shown in FIG. 8(a), for example, for testing a light passenger vehicle, the rear wheel cover members 20Ra, 20Rb are moved forward and the front wheel cover members 20Fa, 20Fb are moved rearward.

[0070] Here, the rear wheel lid members 20Ra, 20Rb have the auxiliary lid (second lid member) 32 on the front side, which is the direction of travel. Therefore, when the rear wheel lid members 20Ra, 20Rb are moved forward, as shown in Figs. 10(a) to 10(c) above, the pushed side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 is pushed by the pushing side engagement portion (third engagement portion) 43 of the main body lid (first lid member) 30, and the auxiliary lid (second lid member) 32 and the main body lid (first lid member) 30 move forward together. Therefore, the rear wheel lid members 20Ra, 20Rb move forward while the total length of the main body lid (first lid member 30) and the auxiliary lid (second lid member) 32 remains in the normal state. That is, the rear wheel lid members 20Ra, 20Rb move forward while maintaining the shortest total length.

[0071] The front wheel lid members 20Fa and 20Fb also move rearward while their overall length remains in the normal state. That is, the front wheel lid members 20Fa and 20Fb have the auxiliary lid (second lid member) 32 on the rear side, which is the direction of travel. Therefore, when the front wheel lid members 20Fa and 20Fb are moved rearward, the pushed side engagement portion (first engagement portion) 53 of the auxiliary lid (second lid member) 32 is pushed by the pushing side engagement portion (third engagement portion) 43 of the main body lid (first lid member) 30, as shown in FIG. 10(b) above, and the auxiliary lid (second lid member) 32 and the main body lid (first lid member) 30 move backward together. Therefore, the front wheel lid members 20Fa and 20Fb move rearward while the overall length of the main body lid (first lid member) 30 and the auxiliary lid (second lid member) 32 combined remains in the normal state. That is, the front wheel cover members 20Fa, 20Fb move rearward while maintaining the shortest overall length. In this way, for example, when changing from a state in which a standard vehicle is being tested to a state in which a light vehicle is being tested, by moving the rear wheel cover members 20Ra, 20Rb forward and moving the front wheel cover members 20Fa, 20Fb rearward, the cover members 20 all approach each other while maintaining their shortest overall length, so that the rear wheel cover members 20Ra, 20Rb and the front wheel cover members 20Fa, 20Fb do not interfere with each other, as shown in Figure 8(a).

[0072] Next, to change this state to, for example, a state in which a bus is to be tested, the rear wheel cover members 20Ra, 20Rb are moved backward, and the front wheel cover members 20Fa, 20Fb are moved forward. Here, the rear wheel lid members 20Ra, 20Rb have the auxiliary lid (second lid member) 32 on the opposite side to the rear, which is the direction of travel. Therefore, when the rear wheel lid members 20Ra, 20Rb are moved rearward, the auxiliary lid (second lid member) 32 remains in place, and only the main body lid (first lid member) 30 moves back, as in the movement shown in Figures 10(c) to 10(e) above, and the auxiliary lid (second lid member) 32 is pulled out to its maximum extent from the main body lid (first lid member) 30. When the rear wheel cover members 20Ra, 20Rb are further moved rearward, as shown in Figure 10(f), the pull side engagement portion (second engagement portion) 55 of the auxiliary cover (second cover member) 32 engages with the pull side engagement portion (fourth engagement portion) 47 of the main body cover (first cover member) 30, so that the cover member 20 moves backward overall with its entire length fully extended.

[0073] When the rear wheel lid members 20Ra, 20Rb are further moved toward the rear of the vehicle 100, the main body lid (first lid member) 30 moves rearward, and as shown in Figure 10(g), the tip side of the main body lid (first lid member) 30 moves away from the floor hole (first opening) 10 in the floor surface 16. However, the auxiliary lid (second lid member) 32 remains without moving in the state where it is pulled out from the main body lid (first lid member) 30, and therefore the auxiliary lid (second lid member) 32 prevents the floor hole (first opening) 10 in the floor surface 16 from opening. That is, the cover member 20 is in the second state and has a longer overall length, so that the cover member 20 can close the floor hole (first opening) 10.

[0074] The same is true for the front wheel lid members 20Fa, 20Fb, where the extended auxiliary lid (second lid member) 32 prevents the floor hole (first opening) 10 in the floor surface 16 from opening. That is, for the front wheel lid members 20Fa, 20Fb as well, the auxiliary lid (second lid member) 32 is located on the opposite side to the forward direction, which is the traveling direction. Therefore, when the front wheel lid members 20Fa, 20Fb are moved forward, the auxiliary lid (second lid member) 32 remains in place and is pulled out from the main body lid (first lid member) 30, and the overall length of the lid member 20 is extended. When the front wheel lid members 20Fa, 20Fb are further moved toward the front side of the vehicle 100, the main body lid (first lid member) 30 moves forward, so that the tip side of the main body lid (first lid member) 30 moves away from the floor hole (first opening) 10 in the floor surface 16. However, the auxiliary lid (second lid member) 32 remains without moving in the state where it is pulled out from the main body lid (first lid member) 30, so the auxiliary lid (second lid member) 32 prevents the floor hole (first opening) 10 in the floor surface 16 from opening.

[0075] In the environmental test device 1 of this embodiment, the cover member 20 can move in the front-rear direction of the vehicle while taking a posture in a state (first state) in which the auxiliary cover (second cover member) 32 is accommodated in the recess 35 of the main cover (first cover member) 30, for example, as shown in the operation between Fig. 10(a) and Fig. 10(c). Also, the cover member 20 can move in the front-rear direction of the vehicle while taking a posture in a state (second state) in which a part of the auxiliary cover (second cover member) 32 is accommodated in the recess 35 of the main cover (first cover member) 30, for example, as shown in the operation between Fig. 10(c) and Fig. 10(e). Also, the cover member 20 can move in the front-rear direction of the vehicle while taking a posture in a state (third state) in which the auxiliary cover (second cover member) 32 is not accommodated in the recess 35 of the main cover (first cover member) 30, for example, as shown in the operation between Fig. 10(e) and Fig. 10(g).

[0076] In the environmental test device 1 of this embodiment, the wheel rest portion 21 can also be moved in the width direction of the vehicle 100. When the wheel rest portion 21 is moved in the width direction of the vehicle 100, the lid member 20 also moves in the width direction. In this embodiment, the auxiliary lid (second lid member) 32 moves along the auxiliary lid side guide roller 65 and the main body lid side guide roller 46 as described above, so that it has freedom of movement only in the direction of protrusion and retraction relative to the main body lid (first lid member) 30, and has no freedom of movement in the width direction of the lid member 20. Therefore, when the lid member 20 is moved in the width direction of the vehicle 100, the auxiliary lid (second lid member) 32 moves in the width direction of the vehicle 100 while maintaining its relative position with the main body lid (first lid member) 30, as shown in columns (a), (b), and (c) of Figure 9.

[0077] Therefore, when the distance of the wheel mounting portion 21 in the fore-and-aft direction of the vehicle 100 is adjusted and then the distance of the wheel mounting portion 21 in the width direction of the vehicle 100 is adjusted, the cover member 20 moves in the width direction of the vehicle 100 while maintaining its adjusted overall length. Therefore, the cover member 20 does not interfere, and the floor hole (first opening) 10 in the floor surface 16 is not exposed. Figure 9 is a plan view showing the positional relationship between one cover member 20 and a floor hole (first opening) 10 provided in the floor surface 16, arranged in a matrix. Even if the cover member 20 is moved in the width direction, the floor hole (first opening) 10 can be blocked by any part of the cover member 20.

[0078] In the embodiment described above, the auxiliary cover side protrusion 51 essentially serves as both the first and second engagement parts, but the first and second engagement parts may be located at different positions. Conversely, one member may serve as both the third and fourth engagement parts.

[0079] In the environmental test apparatus 1 of the embodiment described above, all of the four wheel mounting parts 21 can be moved in the front-rear direction of the vehicle. According to the environmental test apparatus 1 of the present embodiment, the vehicle 100 can be installed at a specific position and an environmental test can be performed regardless of the size of the vehicle 100. For example, the center position of the test vehicle can be made the same regardless of the size of the vehicle 100. Therefore, for example, when an experiment is performed by creating an environment of sunlight, wind and rain in the test chamber 2 and exposing the vehicle 100 to that environment, there is an effect that consistent data can be obtained. However, the present invention is not limited to this configuration, and the present invention may be adopted in an environmental testing device in which only the wheel mounting portion 21 on the front wheel side can be moved, or in an environmental testing device in which only the wheel mounting portion 21 on the rear wheel side can be moved. Also, while only some of the four wheel mounting portions 21 can be moved in the fore-and-aft direction of the vehicle 100, for example, only the entire length of the cover member 20 on the front wheel side may be made extendable. In addition, the environmental testing device may be for a two-wheeled vehicle and may be configured to have two wheel mounting portions 21, and in addition to a configuration in which both wheel mounting portions 21 are movable, a configuration in which only the wheel mounting portion 21 on the front wheel side is movable, or a configuration in which only the wheel mounting portion 21 on the rear wheel side is movable, may also be used.

[0080] In the embodiment described above, the sliding member 50 made of a material with a low friction coefficient such as oil-less metal is attached to the back surface of the main body lid (first lid member) 30 to improve sliding on the floor surface 16, but sliding members made of a material with a low friction coefficient may be provided on other sliding parts. For example, a member with a low friction coefficient may be provided on the contact part between the auxiliary lid (second lid member) 32 and the floor surface 16 of the test chamber 2. A member with a low friction coefficient may be provided on the part of the auxiliary lid (second lid member) 32 that contacts the main body lid (first lid member) 30 or on the contact part between the main body lid (first lid member) 30 and the auxiliary lid (second lid member) 32. Also, the sliding member 50 may be omitted.

[0081] In the above-described embodiment, the environmental test device 1 is provided with the mechanical test device 3. However, the environmental test device 1 of this embodiment may be an environmental test device that does not include the mechanical test device 3. Specifically, the environmental test device may be an environmental test device that is used together with the mechanical test device 3 that includes the wheel placement portion 21 on which the wheels 101 of the vehicle 100 are placed. The environmental test device of this configuration has a test chamber 2 that can be adjusted to a desired environment, a floor hole 10 as a first opening is provided on the floor surface 16 of the test chamber 2, and a lid member 20 that covers the first opening is provided. The lid member 20 has a main body lid 30 as a first lid member and an auxiliary lid 32 as a second lid member that can move together with the first lid member, the first lid member has a retractable opening 33 as a second opening that exposes the wheel placement portion, the lid member 20 is movable in the horizontal direction, and the total length of the first lid member and the second lid member combined expands and contracts in the front-rear direction of the vehicle 100.

[0082] The mechanical testing device employed in the environmental testing device 1 of this embodiment is a mechanical testing device 3 used together with an environmental testing device having a test chamber 2 that can be adjusted to a desired environment. The mechanical testing device 3 has a wheel placement section 21 on which wheels 101 are placed. A lid member 20 that covers a floor hole (first opening) 10 provided in the floor surface 16 of the test chamber 2 is attached to the wheel placement section 21, and the lid member 20 has a main body lid (first lid member) 30 and an auxiliary lid (second lid member) 32 that can move together with the main body lid (first lid member) 30. The main body lid (first lid member) 30 has a retractable opening (second opening) 33, and the wheel placement section 21 can move together with the lid member 20 within the range of the floor hole (first opening) 10 in a state exposed from the retractable opening (second opening) 33. The total length of the lid member 20, including the main body lid (first lid member) 30 and the auxiliary lid (second lid member) 32, can be extended or contracted.

[0083] In the embodiment described above, the main body lid (first lid member) 30 has a recess 35 on the upper surface side, and at least a part (the portion to be accommodated) of the auxiliary lid (second lid member) 32 is accommodated in the recess 30. However, the main body lid (first lid member) may have a recess on the lower surface side, and the portion to be accommodated of the auxiliary lid (second lid member) may be accommodated in the recess. The main body lid (first lid member) 30 may not have the recess 35. For example, the main body lid may be a flat plate, and the auxiliary lid (second lid member) 32 may slide above or below the flat plate. In this case, a slide mechanism such as a slide rail or an engagement portion may be provided above or below the flat plate.

[0084] In the embodiment described above, the movement range of the lid member 20 is set to a position where the end of the wheel placement portion 21 overlaps with the end of the floor hole (first opening) 10 as shown in Fig. 9 and Fig. 10, but is not limited thereto. For example, it may be set to a position where the end of the vibration shaft 22 overlaps with the end of the floor hole (first opening) 10. Of course, the lid member 20 may be moved within a range where the end of the wheel placement portion 21 or the vibration shaft 22 does not overlap with the end of the floor hole (first opening) 10. [Explanation of symbols]

[0085] 1 Environmental testing equipment 2. Test Room 3 Mechanical Testing Equipment 5 Machine room 8 Air conditioner 10 Floor hole (1st opening) 16 Floor surface 20 Cover member 21 Wheel mounting section 30 Main body lid (first lid member) 32 Auxiliary cover (second cover member) 33 Appearance opening (second opening) 35 Recess (second cover member receiving portion) 43 Push-side engagement portion (third engagement portion) 47 Pull side engagement portion (fourth engagement portion) 48 Main unit lid guide 50 Sliding member 53 Push-side engagement portion (first engagement portion) 55 Pull side engagement portion (second engagement portion) 67 Auxiliary cover side guide 100 vehicles 101 Wheels

Claims

1. An environmental test apparatus comprising: a test chamber that can be adjusted to a desired environment; a machine room located below the test chamber; and a mechanical test device having a wheel mounting portion on which vehicle wheels can be mounted, A first opening is provided in a floor surface of the test chamber, a cover member for covering the first opening; The cover member includes a first cover member and a second cover member movable together with the first cover member, The first cover member has a second opening. the wheel mounting portion is exposed from the second opening and is movable together with the cover member in a horizontal direction; The environmental testing apparatus has a total length of the first and second cover members that expands and contracts in the front-to-rear direction of the vehicle.

2. An environmental test apparatus used together with a mechanical test apparatus having a wheel support portion on which a vehicle wheel can be placed, A test chamber that can be adjusted to a desired environment; A first opening is provided in a floor surface of the test chamber, a cover member for covering the first opening; The cover member includes a first cover member and a second cover member movable together with the first cover member, The first cover member has a second opening for exposing the wheel mounting portion, The cover member is movable in a horizontal direction, The environmental testing apparatus has a total length of the first and second cover members that expands and contracts in the front-to-rear direction of the vehicle.

3. The second cover member has a first engagement portion and a second engagement portion, The first cover member has a third engagement portion and a fourth engagement portion, the second cover member is movable linearly in a front-rear direction of the vehicle within a range from a position where the first engagement portion and the third engagement portion engage with each other by overlapping with the first cover member to a position where the second engagement portion and the fourth engagement portion engage with each other, The first cover member is movable in a front-rear direction of the vehicle by power, the second lid member is biased by the first lid member to move to one side in the front-rear direction of the vehicle when the first lid member moves in one side in the front-rear direction of the vehicle with the first engagement portion and the third engagement portion engaged with each other, The environmental testing device according to claim 1 or 2, wherein the second lid member is biased against the first lid member and moves to the other side in the fore-and-aft direction of the vehicle when the first lid member moves to the other side in the fore-and-aft direction of the vehicle with the second engagement portion and the fourth engagement portion engaged.

4. The overall length of the cover member is changed by changing the amount of protrusion of the second cover member from the first cover member in the front-rear direction, the lid member is in any one of a first state in which the protrusion amount of the second lid member is a minimum state, a second state in which the protrusion amount of the second lid member is a maximum state, and a third state in which the protrusion amount of the second lid member is between the first state and the second state, 3. The environmental testing device according to claim 1, wherein the lid member is movable in the fore-and-aft direction of the vehicle while changing the second lid member to one of the first state, the second state, or the third state by movement of the first lid member.

5. 5. The environmental testing device according to claim 4, wherein the second cover member has a width smaller than that of the first cover member.

6. 3. The environmental testing apparatus according to claim 1, further comprising a guide member that guides movement of the second cover member in the front-rear direction of the vehicle.

7. The environmental testing device according to claim 6 , wherein the guide member also functions as a suppression portion that suppresses movement of the second cover member in the width direction of the vehicle.

8. The cover member is movable in a width direction of the vehicle, 8. The environmental testing apparatus according to claim 7, wherein when the cover member is moved in the width direction of the vehicle, the cover member moves in the width direction of the vehicle while the second cover member maintains a relative position with respect to the first cover member.

9. a front wheel mounting portion and a cover member for mounting a front wheel of the vehicle, and a rear wheel mounting portion and a cover member for mounting a rear wheel of the vehicle, 3. The environmental testing device according to claim 1, wherein both the wheel mounting portion for the front wheels and the wheel mounting portion for the rear wheels are movable in a horizontal direction together with the cover member.

10. 3. The environmental testing device according to claim 1, further comprising at least two of the wheel mounting sections and the lid members corresponding to the wheel mounting sections, the at least two lid members being arranged such that the second lid members of each of the lid members face each other.

11. 3. The environmental testing device according to claim 1, wherein a member having a lower coefficient of friction than the first lid member and / or the second lid member is attached to the contact surface of the first lid member and / or the second lid member with another member.

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