JPH0350383Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the gasket mounting structure in the door opening/closing part of a constant temperature and humidity chamber used as an environmental test chamber, for example.

In the case of a constant temperature and humidity chamber, a panel is generally attached to the periphery of the opening end of the chamber, which is the main body, and the periphery of the back of the door, and a gasket is attached to the surface of these panels to seal the space between the two when the door is closed. installed.

Conventionally, the mounting has been carried out by screwing the above-mentioned panels using separate packing retainers.

Therefore, the number of parts required for attaching the seal increases, and the number of man-hours required for installation increases accordingly.Furthermore, after the seal is attached, the seal retainer is exposed on the panel surface, resulting in an unsightly appearance.

Further, when the gasket is attached by screwing, there is a drawback that the attachment portion is easily deformed when the gasket is replaced.

For example, Japanese Utility Model Publication No. 45-12977 discloses a gasket in which the tip of the inner plate is bent into a sideways U-shape and the raised part of the gasket is fitted into the gasket.

However, in the above configuration, since it is integrally attached to the door and the inner surface plate must be curved,
If one part is damaged, the whole thing must be replaced.

This idea was devised in view of the above circumstances, and the main problem is to easily attach the gaskets to the door side and the main body side of a constant temperature and humidity chamber using common parts. The purpose of the present invention is to provide a gasket mounting structure for a constant temperature/humidity chamber, etc.

In order to achieve the above-mentioned problems, this invention (a). A peripheral wall on the main body side that is connected to the outside vertical surface via a slope that gradually rises from the inside vertical surface to the front (door side) at the open end of the chamber of the temperature and humidity chamber, and corresponds to this with a gap. Packing installation of a constant temperature and humidity chamber consisting of a peripheral wall on the back side of the door, and a decorative panel that is attached in a substantially rectangular frame shape facing each other along the peripheral wall on the main body side and the peripheral wall on the back side of the door and locks the gasket. a structure, (b). (c). The cross section of the straight member is inclined at the center, and both ends are parallel to each other and extend in opposite directions so as to have the same shape even when reversed, and one of the extending ends has a mounting surface. (d). The corner member is composed of a main body corner member having a stepped portion on the inner peripheral edge side, and a door side corner member having a stepped portion on the outer peripheral edge side, (e). Arrange the straight member so that the stepped portion is on the outer circumferential side, and assemble the decorative panel for the peripheral wall on the back side of the door by combining the door-side corner member at the corner, (f). The above-mentioned straight member is reversed and arranged so that the stepped portion is on the inner circumferential side, and the above-mentioned main body side corner member is assembled at the corner to assemble a decorative panel for the main body side peripheral wall, (g). The base of the gasket is engaged with the assembled and continuous stepped portion, and the gap between the door and the chamber opening is closed inside and outside, respectively, along the frame shape of the decorative panel using the extending piece connected to the gasket. We are taking technical measures to make this possible.

Preferred embodiments of this invention will be described below with reference to the drawings.

In the constant temperature and humidity chamber shown as an environmental test chamber in FIG. 1 and FIG. A door 4 is provided for opening and closing the front opening.

The chamber 2 and the door 4 of this temperature and humidity chamber each have a heat insulating structure, and the peripheral wall at the front opening end of the chamber 2 and the peripheral wall at the back side of the door 4 are provided with frame-shaped decorative panels 5 that face each other when the door is closed. , 6 are installed respectively.

Here, as shown in FIG. 2, the peripheral wall at the opening end of the chamber 2 is connected to the outside (outer peripheral side) vertical surface through an inclined surface that gradually rises from the inside (center side) vertical surface to the front (door side). It has a shape that is connected to the
The peripheral wall on the back side of the door, which corresponds to this with a gap, has a shape in which it is connected to the vertical surface on the outside (outer circumferential side) via an inclined surface that is gradually thinned forward from the vertical surface on the inside (center side). The above chamber 2 and door 4
Decorative panels 5 and 6 are attached along the respective spaced apart inclined surfaces.

As shown in detail in FIGS. 3 and 4, these decorative panels 5, 6 are divided into two straight members 5a, 5b and 6a, 6b, long and short, divided into a plurality of parts, and are arranged in a front angle shape, facing toward the main body. The illustrated example has a configuration in which four body-side corner members 5c and door-side corner members 6c, each of which has a different size on the door side, are combined and glued together in a rectangular frame shape, and each of the members is made of industrial plastic. Made of injection molded product.

The straight members 5a, 5b and 6a, 6b
can be used in common when assembling the decorative panels 5 and 6 on either the main body side or the door side.

In other words, the constituent members of the decorative panel 5 on the main body side and the decorative panel 6 on the door side are different in the main body side corner member 5c and the door side corner member 6c, and the main body side corner member 5c has a step on the inner peripheral edge side. Part 7
The door-side corner member 6c has a stepped portion 8 on the outer peripheral edge side.

For this reason, both corner members 5c and 6c
Depending on which is selected, the main body side decorative panel and the door side decorative panel are classified.

Here, straight members 5a, 5b and 6a,
6b, the cross section is at the center of the chamber 2.
The straight member 5 on the main body side is inclined at substantially the same angle as the inclined surface of the peripheral wall of the door, and both ends are parallel to each other and extend in opposite directions.
If a and 5b are reversed, the straight member 6 on the door side
a, 6b.

Step portions 7 and 8 are formed at one extending end.

As shown in more detail in FIGS. 5 to 8, the stepped portions 7 and 8 are formed with the wall surfaces of the decorative panels 5 and 6 when they are attached to the peripheral wall of the opening end of the chamber 2 and the peripheral wall of the back surface of the door 4. Frame-shaped grooves 7' and 8' for fitting the packing are formed between them.

Further, the step portions 7 and 8 are formed to have a wedge-shaped cross section (dovetail groove shape) so that the packing 9 will not come off from the frame-shaped grooves 7' and 8' formed as described above.

On the other hand, the gasket 9 in the illustrated example is made of a heat-resistant member, and has leg pieces 9a formed to have substantially the same cross-sectional shape as the frame-shaped grooves 7' and 8' so as to be fitted into and aligned with the grooves.
, an arc-shaped extension piece 9b that is integrally connected to this and extends toward the other party's decorative panel, and a tongue that is integrally connected to the inner surface from the tip of the extension piece 9b and faces toward its own decorative panel. It has a configuration including a piece 9c.

Thus, the decorative panels 5 and 6 are fastened to the respective wall panels of the chamber 2 and door 4 with screws 10.

At the time of tightening or after tightening, the packing 9
The proximal leg pieces 9 are fitted into each of the frame-shaped grooves 7' and 8'.

When the decorative panels 5, 6 are completely knitted, the proximal leg pieces 9a of the packing 9 are fastened together, and the decorative panels 5, 6 also serve as packing restraints.

Therefore, there is no need to use special parts for attaching the gasket.

Moreover, the packing 9 after installation is the leg piece 9a.
Since the decorative panels 5 and 6 are fastened in a wedge-like manner by the stepped portions 7 and 8, a highly reliable attachment state is maintained that will not accidentally come off.

As described above, according to this invention, decorative panels are attached to the sloped surface of the peripheral wall on the chamber side and the sloped surface of the peripheral wall on the door side that is spaced apart from this, and the extending pieces of the packing are installed in the gaps between the inside and outside of the sloped surfaces. The atmosphere inside the chamber is sealed.

The base ends of the gaskets used for this on the main body side and the door side have the same shape, and the stepped portions of the decorative panels that lock the gaskets also have the same shape.

By reversing the straight member, it can be used for both the main body and the door.
The sealed structure of the chamber of a constant temperature and humidity chamber can be simplified.

Moreover, since the decorative panel is divided into a corner member and a straight member, if a part is damaged, there is no need to replace the whole part, and only the corresponding part can be replaced.

[Brief explanation of the drawing]

The drawing shows a preferred embodiment of this invention.
Figure 1 is a front view of the constant temperature and humidity chamber, Figure 2 is a schematic vertical sectional view of the same, Figure 3 is a front view of the decorative panel on the main body side, Figure 4 is a front view of the decorative panel on the door side, and Figure 5 is a front view of the decorative panel on the door side. Figure 3 is a cross-sectional view taken along the line V-V in Figure 3, Figure 6 is a cross-sectional view taken along the - line in Figure 4, Figure 7 is an enlarged cross-sectional view of section A in Figure 2, and Figure 8 is with the packing removed from Figure 7. It is a sectional view of the state. 2 is a chamber, 4 is a door, 5 and 6 are decorative panels,
7 and 8 are step portions, 7'8'F frame-shaped grooves, and 9 are gaskets.

Claims (1)

[Scope of Claim for Utility Model Registration] At the open end of the chamber of a constant temperature and humidity chamber, from the inner (center side) vertical plane to the outer (outer circumferential side) vertical plane through a slope that gradually rises forward (toward the door). A peripheral wall on the side of the main body which is installed in a row, a week wall on the back side of the door corresponding to this with a gap, and a substantially rectangular frame shape that faces each other along the peripheral wall on the main body side and the peripheral wall on the back side of the door. A gasket mounting structure for a constant temperature and humidity chamber consisting of a decorative panel that locks a gasket, the decorative panel having a substantially rectangular shape that is a combination of a rectangular straight member and a corner member that is approximately angled from the front. The straight member has a frame shape, and the straight member is inclined at the center, and both ends are parallel to each other and extend in the direction of separation, so that the shape remains the same even when reversed, and one of the extending ends has a mounting surface. A step part is provided to form a dovetail groove between the corner member and the surrounding wall, and the corner member is composed of a main body side corner member having a step part on the inner peripheral edge side and a door side corner member having a step part on the outer peripheral edge side. Then, arrange the above straight member so that the step part is on the outer circumference side, combine the above door side corner member at the corner to assemble a decorative panel for the peripheral wall on the back side of the door, and then invert the above straight member. Arrange the step part so that it is on the inner circumferential side, and assemble the decorative panel for the peripheral wall of the main body side by combining the corner members on the main body side at the corners, and attach the base of the packing to the continuous step part after being assembled. A gasket for a constant temperature and humidity chamber, characterized in that the gap between the door and the chamber opening is closed inside and outside, respectively, along the frame shape of the decorative panel by an extending piece that engages with the gasket and is connected to the gasket. Mounting structure.