JPH0296635A - Environment testing apparatus - Google Patents

Abstract

PURPOSE:To dispense with an apparatus for closely bringing a closure member into contact with the seal members of a dead space and an opening for performing opening and closing and to prevent the displacement and deformation of the seal member by providing a guide device for allowing the door opening and closing the opening to rise and fall. CONSTITUTION:The test tank 1 surrounded by the heat insulating wall 11 of this apparatus 10 has a specimen taking in and out opening 12 opened and closed by a rising and falling door 2. A pair of fixed guide plates 31 are provided to the guide device 3 of the door 2 so as to face to both side parts of the door 2 and upper and lower guide grooves 32, 33 are provided to said guide plates 31 and the guide rollers 34, 35 freely and idly rotating along the side parts of the door 2 are respectively engaged with the grooves 32, 33. The door 2 is raised and lowered by the guide device 3 and faces to the opening at a rising limit to revolve around the roller 34 or 35 herein. Then, the door 2 takes a closed door position P1 bringing the door into contact with the seal member 13 of the peripheral edge part of the opening 12 under pressure to close the opening 12 or a falling start position P2 slightly retracted and revolved from said position P1. At the time of the rising and falling operation of the door 2, the inner surface of the door 2 is positioned slightly before the member 13 to be prevented from the contact with the member 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to environmental testing equipment such as thermostats and thermal shock testing equipment.

[Conventional technology]

An environmental test device generally includes an opening in the front for taking in and taking out a sample, and is configured so that the opening can be opened and closed by a door.

For the door, the side part of the door is connected to the main body of the device with a hinge, and the door can be opened and closed by pivoting.It is attached to the main body of the device so that it can slide in the left and right direction, and when the door is closed, a separately provided driving means is used to seal the door around the opening of the device. Some devices are designed to be pressed in the direction of the opening so as to come into close contact with the member.

[Problem to be solved by the invention]

However, in the case of the door that swings, a large space is required in front of the device for opening and closing the door, and this space becomes a dead space that cannot be effectively used for purposes other than opening and closing the door.

Furthermore, the sliding type door also has the problem of requiring a space next to the device for opening and closing the door.

Furthermore, in the case of a sliding door, as mentioned above, pressing the door against the sealing member of the opening of the device requires a driving means to bring the door into close contact with the sealing member of the opening of the device, which makes the device complicated and expensive. When the driving means malfunctions due to a power outage or other circumstances, there is a problem in that the sample in the testing device cannot be taken out.

Another possible method of omitting this driving means is to slide the sliding door so that the inner surface of the door comes into close contact with the sealing member when the sliding door completes sliding to the closed position. There is a problem in that the inner surface of the door begins to come into contact with the sealing member before the door reaches the completely closed position, and the sealing member is displaced or deformed from its original position due to frictional force or the like.

Therefore, the purpose of the present invention is to: (1) eliminate the need to provide dead space in front of the device and on the left and right sides for opening and closing the door; (2) provide a special drive device for bringing the door into close contact with the sealing member of the device opening in the closed door position; There is no need to provide
In addition, the environmental test equipment is designed so that the door can be opened and closed manually at any time without being hindered by such a drive device, and that there is no risk of displacing or deforming the sealing member at the opening of the equipment when closing the door. The purpose is to provide.

[Means to solve the problem]

As a result of intensive research to achieve the above object, the present inventor has
■Environmental test equipment is often used by placing it on a suitable stand or other equipment, and in that case, the space below the door placed in the closed position can be used for opening and closing the door. If used, the door can be opened and closed by raising and lowering, and there is no need to create dead space in front of the device or on the left and right sides. ■Also, at the stage of raising the door to the front of the device opening, the political world will use the sealing material around the opening. If it is possible to manually rotate the sealing member as if it were connected to the device body by a hinge and press it into contact with the sealing member when the sealing member rises to the front of the device opening without contacting the device, it will be possible to prevent power outages, etc. The present invention has been completed based on the discovery that the door can be opened and closed as desired without being disturbed, and that the sealing member does not shift or deform.

That is, the present invention provides an environmental testing apparatus that is equipped with an opening [1] at the front for loading and unloading samples, and the opening can be opened and closed by a door, and is provided with a guide device that guides the door so that it can be raised and lowered, The guide device includes a fixing member provided in the hoistway of the door, an upper protrusion provided on either one of the doors, an upper guide groove provided on the other side of the door, and with which the upper protrusion engages and allows the upper guide groove to move up and down; The member includes a lower protrusion provided on one of the member and the door, and a lower guide groove provided on the other that allows the lower protrusion to engage and move up and down, and the door is raised to its upper limit by the guide device. It is possible to move up and down up to or near the opening without contacting the sealing member provided at the periphery of the opening, and at the upper limit, it rotates using the upper or lower protrusion as a fulcrum and presses against the sealing member. The present invention provides an environmental testing device that can take a closed position where the opening is closed in a close state, or a lowering start position where the opening can be rotated backward from the closed position and the lowering can be started.

The door may be suspended by a spring which applies a force upward and towards the opening direction, ie towards the closed position. In this case, the door may be provided with an attachment/detachment portion for the balance adjustment weight.

(Function) According to the environmental testing device of the present invention, the door can be raised and lowered by engaging the upper protrusion with the upper guide groove and the lower protrusion with the lower guide groove.The door faces the opening at its upper limit. Here, the upper protrusion or the lower protrusion can be rotated using the upper protrusion or the lower protrusion as a fulcrum.By this rotation, the door presses into contact with the sealing member on the periphery of the opening to close the opening, or to the closed door position. It assumes the lowering start position, which is rotated slightly backward from the position.During the raising and lowering operation, the inner surface of the door is located slightly in front of the sealing member, and therefore does not come into contact with the sealing member.

If the door is suspended by a spring that applies a force upward and in the opening direction, and the door is provided with an attachment/detachment section for a balance adjustment weight, the door is It is raised and lowered under the force of gravity of an adjustment weight provided at the attachment/detachment part.

Further, depending on the force of the spring, after the door rises to its upper limit and reaches the lowering start position, the force of the spring in the opening direction automatically moves the door to the closed position.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a front view of an embodiment of the invention, and FIG. 2 shows a cross section of the embodiment.

Environmental test device 1 according to the embodiment of the present invention shown in FIGS. 1 and 2
0 is equipped with a test tank l surrounded by a heat insulating wall 11, in which temperature tests and screening can be performed on samples taken in and out from the front opening 12 of the nuclide. The opening 12 is opened and closed by the lift door 2.

Note that the apparatus 10 is integrally mounted on a conventional environmental test apparatus 20.

The door 2 can be raised and lowered while being guided by a guide device 3.

The guide device 3 includes a pair of fixed guide plates 31 facing both sides of the door 2.
31, and each guide plate 31 has an upper guide groove 32 and a lower guide groove 33.

A projection (in this example, a freely rotatable guide roller) 34 on the side of the door facing the liquid groove is engaged with the upper guide groove 32 . In addition, the lower guide groove 33 has a protrusion (
In this example, a freely rotatable guide roller 35 is engaged.

Each upper groove 32 consists of a portion 321 extending straight up and down from the lower end to near the upper end, and an upper end portion 322 extending curvedly from the portion 321 toward the test chamber 1 side. Further, the lower guide groove 33 consists of a portion 331 that extends straight in the vertical direction below the upper guide groove 32, and a portion 332 that is sharply bent from the upper end of the portion 331 toward the test chamber I.

The door 2 can be raised and lowered by each guide roller 34 rolling in the groove 32 and each guide roller 35 moving in the straight part 331 of the groove 33, and during the raising and lowering movement, the inner surface of the door 2 is tested. It does not come into contact with the sealing member 13 at the peripheral edge of the tank opening 12, but is a little distanced from the sealing member.

The door 2 is restricted from rising when each guide roller 34 reaches the upper end of the curved portion 322 of the upper guide groove 32.

When the guide roller 34 reaches the upper end of the curved portion 322, the lower roller 35 has just reached the straight portion 33 of the lower guide groove.
1 and faces the bent portion 332. That is,
In the figure, position P3 is taken.

Thus, the lower end of the door 2 can be rotated toward the test chamber 1 using the rollers 34, 34 on both sides of the upper end as fulcrums, as if the door were hinged.

During this rotational movement, each lower roller 35 fits deep into the bent portion 332 of the lower guide groove. As the door approaches and rotates toward the opening 12 in this manner, the inner surface of the door comes into close contact with the sealing member 13 at the periphery of the opening.

When each guide roller 34 is at the upper end of the upper groove 32 and the lower guide roller 35 is fitted into the bent part 332 of the lower guide groove, the door 2 cannot be lowered, and the door 2 cannot be lowered to the closed position P1. maintain.

Note that the inner surface of the door 2 comes into contact with the seal member 13 when the upper roller 34 reaches the upper end of the upper guide groove 32 at the earliest.
This is when the door 2 can be rotated to the inside of the test chamber, or when it is in a state close to that state. Therefore, there is no possibility that the seal member 13 will be displaced or deformed due to the vertical movement of the door 2.

Moreover, this environmental test apparatus 10 is equipped with a counterweight device 4 to facilitate opening and closing of the door 2.

The device includes a support plate 41 connected to the shaft of each lower guide roller 35 on the outside of the fixed guide plate 31 of the guide device 3, and a chain 43 connected to the support plate 41 at one end and to a counterweight 42 at the other end. , a rotatable sprocket 44 arranged in a fixed position for guiding the chain, and a weight 4
2 can be moved up and down along a guide rod 45 that extends up and down. Although not particularly shown, the weight 42 and/or the end of the chain connecting the weight are provided with a portion to which a not-shown adjustment weight can be attached and detached.

A handle 6 is provided at the lower end of the door 2 and also serves as an operating section of a locking device 5 for locking the door in the closed position Pi.

Therefore, the operator can lift the door 2 placed at the opening position P2 by holding the handle 6, and at the upper limit of the door 2, the operator can move the door around the opening periphery as if it were a door hinged to the main body of the device. The lower guide rollers 35 are pushed into the bent portions 332 of the lower guide grooves and placed in the closed door position, and the locking device 5 can be operated in this state.

When opening the door 2, the locking device 5 is released using the handle 6, and each lower guide roller 35 is rotated so as to be pulled out from the bent groove 332 to the upper end of the linear groove 331, placed at position P3, and then lowered. You can open it by pulling it.

The lifting and lowering operation of the door can be easily performed with less effort by the action of the counterweight device 4.

Next, the embodiment shown in FIGS. 3 to 5 will be described.

The environmental test apparatus 100 of this embodiment has substantially the same structure as the apparatus IO described above except for the following points. Parts of the device that are substantially the same as those in the previous device 10 are given the same reference numerals as used in FIGS. 1 and 2.

The differences from the device 10 are as follows.

■ In the device IO, each upper guide groove 32 in the guide device 3
The upper end portion 322 is a curved groove that bulges toward the opposite side of the test chamber 1, whereas the upper end portion 322' of the upper guide groove of the guide device 3 in the apparatus 100 has a curved shape that bulges toward the test chamber 1. It is formed.

(2) Although the device IO is provided with a counterweight device 4, the device 100 is not provided with such a device 4, but is provided with a suspension device 7 instead.

(2) Furthermore, in connection with the provision of the suspension device 7, a portion 21 on which the adjustment weight 8 can be attached and detached is provided on the door.

In this way, the shape of the upper groove in the door guide device 3 is
Although slightly different from that of O, the operation of the door 2 is basically the same as the operation of the door in the device 10.

In other words, the door 2 can rise from its opening position P2 to the upper limit or very close to it without contacting the sealing member 13 on the periphery of the opening 12, and when it reaches the upper limit, it will move as if it were hinged to the main body of the device. It can press the seal member 13 like a door and fit into the closed door position P1 while being in close contact with it.Furthermore, it can rotate backward from the closed door position, pass through the position P3, and then lower to the open door position P2. can.

The suspension devices 7 are provided on the left and right, and each device 7 includes a connecting member 71 that connects the upper guide roller shaft 34a and the lower guide roller shaft 35a on the outside of the fixed guide plate 31 in the door guide device 3, and a member. It includes a shaft 72 that projects laterally from 71 and a spring 74 that suspends the shaft 72 via a connecting rod 73. The S spring 74 is a spiral spring-like spring (constant output spring) formed by winding a temporary spring.

The spring 74 is supported by the device frame 74F, and the fifth
As shown in the figure, an upward force "1" on the door 2 and an opening 12
In this example, the weight of the door is supported by the force f of this spring.

In this example, the adjusting weight attachment/detachment section 21 provided in Ji2 is in the form of a pocket, into which one or more adjustment weights 8 can be taken in and out.

As mentioned above, the weight of the door 2 is supported by the spring 74, but since the force of this spring is not variable, a spring with an output slightly stronger than the weight of the door is selected, and therefore the adjustment weight 8 is By attaching it to the door appropriately, the balance is more conveniently maintained.

Therefore, in the apparatus 100, the operator can easily raise and lower the door 2 by the action of the suspension device 7 or by the action of the suspension device 7 and the adjustment weight 8. Further, as described above, the spring 74 is provided so as to pull the door 2 upward and toward the test chamber opening 12, in other words, toward the closed door position P1. When raised, the lowering start position P facing the opening 12 is reached.
3, the door can be placed in the closed position PI by the force of the spring alone or by adding a little human power.

Note that the present invention is not limited to the above embodiments,
It can also be implemented in various other ways.

For example, in the embodiment described above, the door 2 can be rotated using the upper guide roller 34 as a fulcrum at the position P3 facing the test chamber opening 12, but it can also be rotated using the lower guide roller 35 as a fulcrum. You can do it like this. However, in this case, each guide groove must be formed to allow such rotation.

Further, in the embodiment described above, the guide rollers 34 and 35 in the door guide device 3 are provided on the door side, but it is also possible to provide the guide rollers 34 and 35 on the fixed plate 31 side and the guide grooves on the door side. Also,
Although a guide roller is used as the protrusion, it is also possible to replace it with a round bar or the like, as long as frictional resistance is not a particular concern.

In addition, by adjusting the weight of the weight device 4 in the case of the device 10, or by adjusting the weight of the adjustment weight 8 in the case of the device 100, the door 2 can be pulled out from its closed position to the lowering start position. Once this is done, it can be configured so that it can descend without the need for human hands. In this case, for example, an appropriate foot lever device (not shown) is provided, and the locking device 5 is released by the lever device to release the door 2.
If the door 2 can be rotated backwards from the closed door position to the lowering start position, the operator can easily open the door 2 by operating the foot lever with his/her foot while holding the sample etc. in both hands. .

〔Effect of the invention〕

According to the present invention, an environmental test device having the following advantages can be provided.

■ There is no need to provide dead space in front of the device and on the left and right sides for opening and closing the door. ■ There is no need to provide a special drive device for bringing the door into close contact with the sealing member of the device opening in the closed door position. As such, the door can be easily opened and closed manually at any time without being hindered by the drive device, and (1) there is no risk of displacing or deforming the sealing member at the opening of the device when closing the door.

In addition, if the door is suspended by a spring that applies force upward and in the opening direction, and the door is provided with an attachment/detachment part for the balance adjustment weight, the force of the spring and the attachment/detachment part as necessary. The door can be easily raised and lowered by the action of gravity of the adjustment weight provided in the door, and by appropriately selecting the force of the spring, the door can be raised from its opening position to the upper limit and reach the lowering starting position. After that, it is also possible to have the door automatically rotate to the closed position.
In that case, the door closing operation becomes extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
3 is a front view of another embodiment of the present invention, FIG. 4 is a sectional view of the device shown in FIG. 3, and FIG. 5 is a suspension system in the device shown in FIG. 3. FIG. 1O1100... Environmental test device, l... Test tank, 12... Test tank opening, 2... Door, 3... Guide device, 31... Fixed guide plate, 32... Upper guide Groove, 33... Lower guide groove, 34... Upper guide roller, 35... Lower guide roller, 13... Seal member, 7... Suspension device, 74... Spring, 8. ...adjustment weight, Pl...closed door position, P2...door open position, P3...descent start position.

Claims (2)

[Claims] (1) An environmental testing device that is equipped with an opening in the front for taking samples in and out, and that can be opened and closed with a door, is provided with a guide device that guides the door so that it can be raised and lowered, and the guide device , an upper protrusion provided on either one of the fixing member and the door provided in the hoistway of the door; an upper guide groove provided on the other of the doors that allows the upper protrusion to engage and move up and down; and the fixing member and the door. The door is provided with a lower protrusion provided on one side and a lower guide groove provided on the other side that allows the lower protrusion to engage and move up and down. can move up and down without contacting the sealing member provided around the opening, and at the upper limit, it rotates using the upper or lower protrusion as a fulcrum and presses into close contact with the sealing member. An environmental testing device capable of taking a closed door position where the opening is closed or a descent start position where the opening can be rotated backward from the closed door position and the descent can be started. (2) The door is suspended by a spring that applies a force upward and toward the opening direction, and
The environmental testing apparatus according to claim 1, wherein the door is provided with an attachment/detachment section for a balance adjustment weight.