JP2003179371A - Rack door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rack door in which a resin board closing the window part has a hard-to-deform structure. <P>SOLUTION: A resin cover body 3 inflating forward from the front face of a body 1 is provided in front of the upper and lower parts of an opening 4 in the body 1 and a space is provided between the back of the cover body 3 and the body 1. The opening 4 is covered with a resin board 2 and a part of the resin board 2 exposed from the opening 4 is also inflated to project from the front face of the body 1. The space formed on the back of the cover body 3 and the space on the back of the cover body 3 are interconnected. A plurality of through holes 10 are provided in the front face of the cover body 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack door provided on the front surface of a rack such as a housing or a box for housing electronic equipment, and more particularly to a rack door having a window partially provided with a resin plate.

[0002]

2. Description of the Related Art Among conventional rack doors, a door having a window formed of a resin plate is formed as shown in FIG. 6, and has a metal frame-shaped main body 21 and an opening 22 provided at substantially the center of the main body 21. And a resin plate 23 mounted so as to close the
The resin plate 23 was mounted mainly in three types shown in FIGS. 6 to 8.

FIG. 6 is a cross-sectional explanatory view of the fixing portion of the resin plate 23. The resin plate 23 is mounted by being held by a holding member 24 having a U-shaped cross section provided around the opening 22 which serves as a window on the back surface of the main body 21. A belt-shaped rubber body 25 having a similar cross-sectional shape is provided in the holding member 24, and is sandwiched and fixed via the rubber body 25. FIG. 7 is a partial perspective view of the back side of the rack door. A resin-made gripping member 28 is attached to a reinforcing frame 27 provided on the back surface along the opening 22 to reinforce the main body 21. The resin plate 23 is held and fixed by the main body 21 and the main body 21. FIG. 8 is an exploded perspective view of the rack door, and the resin plate 23 is a resin plate 23 when the reinforcement frame 29 is screwed and attached by using the reinforcement frame 29 provided around the main body 21 of the rack door. It is also sandwiched and attached.

[0004]

However, since the fixed form shown in FIG. 6 can absorb a dimensional change due to thermal expansion of the resin plate 23, it is difficult for the resin plate to deform.
It was necessary to attach the rubber body 25 to each side of No. 3, and it took time to assemble and the cost was increased. Also, FIG.
In the form using the gripping member 28 shown in (1), since the gripping portion is partial, the corrugation phenomenon of the resin plate 23 is likely to occur, and the deformation due to heat is easily noticeable. Further, in the form of directly fixing with the reinforcing frame 29 shown in FIG. 8, since the four sides of the resin plate 23 are completely fixed, it is possible to suppress the waving phenomenon of the end portion of the resin plate 23, but the fixing portion does not cause thermal deformation. Cannot be absorbed,
After all it was easy to transform. Therefore, in view of the above problems, it is an object of the present invention to provide a rack door having a structure in which a resin plate mounted on a window portion is hard to be deformed.

[0005]

In order to solve the above-mentioned problems, the present invention has been devised so that the heat generated by the equipment in the rack is not transmitted to the resin plate in addition to devising the fixing form of the resin plate. In order to solve the problem, the invention of claim 1 is a rack door which has a main body having an opening at substantially the center and a resin plate covering the opening, and which is mounted on a rack opening surface, the opening being at the front of the main body. A resin cover body is provided on both the upper part and the lower part of the section, and the cover body is bulged forward from the front surface of the main body to provide a space between the back part of the cover body and the main body.
A portion of the resin plate exposed from the main body opening also bulges forward from the front surface of the main body, and a space between the back portion of the cover body and the main body communicates with the back portion space of the bulged resin plate, and further covers. A plurality of through holes are provided on the front surface of the body, and the inside of the rack can be ventilated by the through holes through the communicating spaces.

According to a second aspect of the present invention, in the first aspect of the invention, the resin plate is bonded to the back surface of the main body through a foamed elastic body.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1A and 1B show an example of an embodiment of a rack door according to the present invention, FIG. 1A is a perspective view seen from the front side, and FIG. 1B is a perspective view seen from the back side. In the figure, 1 is a frame-shaped rack door main body, 2 is a resin plate, 3 is a cover body, the main body 1 is formed by press-molding a metal plate, and an opening 4 serving as a window is formed in the center of the front surface. It is formed by punching.

The resin plate 2 is formed by vertically connecting a plurality of acrylic molding plates 5 of the same shape. The molding plate 5 is formed at the left and right end portions as shown in the perspective view of the molding plate alone in FIG. Mounting part 5a
And a window forming portion 5b exposed from the opening. The mounting portion 5a is a flat strip-shaped body that abuts against the back portions on both left and right sides of the opening portion 4, and the window forming portion 5b is formed so as to project entirely from the front surface of the main body 1, and is uniformly provided with R in the left-right direction. It is formed in a curved line, and is bulged to form a part of a vertically extending cylinder.

The resin plate 2 is attached to the mounting portion 5 of the molding plate 5 as shown in the cross-sectional view of FIG. 3 including the opening 4 of the rack door.
It is formed by adhering a to the back surface of the main body at the left and right ends of the opening 4 and connecting them vertically. However, as shown in the enlarged view of the portion A of FIG. 3, the left and right ends of the molding plate 5 are bonded to the main body 1 via the foamed elastic body 7. The mounted resin plate is mounted so that the window forming portion 5b projects from the front surface of the main body 1 as shown in the drawing, and a space B as shown is formed between the back portion of the resin plate and the front surface of the main body. In FIG. 3, reference numeral 8 is a reinforcement frame provided to reinforce the periphery of the opening.

The cover body 3 comprises an upper cover body 3a provided on the upper portion of the main body 1 and a lower cover body 3b provided on the lower portion,
The resin cover 2 has a front surface having substantially the same width and the same protruding shape, the upper cover body 3a is formed to have a height from the upper end of the opening 4 to the upper end of the main body 1, and the lower cover body 3b is opened. It is formed to have a height from the lower end of the portion 4 to the lower end of the main body 1. However, in this embodiment, the widths of the upper side and the lower side of the main body 1 are the same, the upper and lower cover bodies 3a, 3b are formed in exactly the same shape, and are mounted in a state where they are reversed to each other.

Therefore, the upper cover body 3a will be described below, and the description of the lower cover body 3b will be omitted. The upper cover body 3a has a plurality of slit-shaped through holes 10 formed in the left-right direction on the front surface, and a locking plate 9 that locks on the upper surface of the main body 1 and closes the upper portion of the cover body 3 on the upper part, and the lower part. Is formed without being closed. When the upper cover body 3a is attached to the main body 1, the cross section is similar to that of the resin plate shown in FIG. 3, and a space B is formed between the back portion of the upper cover body 3a and the front surface of the main body 1. The space behind the upper cover body 3 and the space behind the resin plate 2 are communicated with each other. The cover body 3 is attached to the main body 1 by screwing it from the back of the main body 1.

As a result, in the rack door formed by assembling the resin plate 2 and the cover body 3 to the main body 1, an air flow path shown by an arrow C in FIG. 1B is formed, and the opening of the upper cover body 3a is formed. The heated air inside flows out from the portion 4 to the outside, and at the same time, the outside air can flow in from the opening portion 4 of the lower cover body 3b to perform ventilation.

As described above, since the air inside the rack door is ventilated, the inside of the rack door is unlikely to reach a high temperature, the deformation of the resin plate due to heat can be suppressed, and the resin plate can be projected forward. Therefore, the space inside the rack door becomes wider, and the ventilation function is not impaired even if the devices are stored in the rack without any gaps. In addition, since it is not necessary to open a ventilation hole in the main body, the strength of the main body does not deteriorate, and by using a cover body made of resin, there is flexibility in the surface shape and the shape of the through hole, Even if a ventilation port is provided on the front surface, a good appearance can be obtained. In addition, since the resin plate has a shape in which unevenness is provided on the whole, the strength is increased, it is hard to be deformed by heat or the like, and the corrugation phenomenon is hard to occur. Further, the resin plate adhesive portion can also absorb the thermal expansion by interposing the foamed elastic body, and the deformation can be minimized.

FIG. 4 is a perspective view showing another example of the rack door of the present invention. Explaining the difference from the above embodiment, the shape of the resin plate is different and the resin plate 11 is not provided with the R main body 1 The window forming portion that protrudes forward from the front surface is formed flat. In this way, the window forming portion of the resin plate may be flat as long as it is formed so as to project to the front so that the space formed in the back portion of the cover body and the resin plate back portion space communicate with each other,
Other shapes may be used. Further, in FIG. 4, the front surface of the cover body is formed by a curved surface provided with R, but the front surface may be formed flat according to the shape of the resin plate, or may have another shape.

In the above-mentioned embodiment, the resin plate is formed by connecting a plurality of acrylic molded plates, but the whole may be formed of one acrylic plate or made of other synthetic resin. You may. Further, the cover body has through holes formed in a slit shape in the left-right direction, but may have any shape as long as air can flow in or out.

[0016]

As described above in detail, according to the first aspect of the invention, the air inside the door is ventilated, so that the inside of the rack door is unlikely to become hot. Therefore, the deformation of the resin plate due to heat can be suppressed, and by projecting the resin plate forward, the space inside the rack door becomes wider, and even if the equipment is stored in the rack without any gap, the ventilation function is hindered. Never be done. In addition, since it is not necessary to open a ventilation hole in the main body, the strength of the main body does not deteriorate, and by using a cover body made of resin, there is flexibility in the surface shape and the shape of the through hole, Even if a ventilation port is provided on the front surface, a good appearance can be obtained. Further, since the resin plate has a shape having unevenness on the whole, the strength is increased and it is difficult to deform due to heat or the like.

According to the invention of claim 2, in addition to the effect of claim 1, the resin plate adhesive portion can also absorb the thermal expansion, and the deformation can be minimized.

[Brief description of drawings]

FIG. 1 shows a rack door showing an example of an embodiment of the present invention, (a) is a perspective view from the front side, and (b) is a perspective view from the back side.

FIG. 2 is a perspective view of an acrylic molded plate that forms a part of the resin plate of FIG.

3 is a cross-sectional view of FIG.

FIG. 4 is a perspective view of a rack door showing another embodiment of the present invention.

FIG. 5 is a perspective view of a conventional rack door provided with a resin window.

FIG. 6 is a cross-sectional explanatory view of essential parts showing a conventional resin plate fixing mode of a rack door.

FIG. 7 is a partial perspective view of a conventional rack door showing another fixing form of the resin plate.

FIG. 8 is an exploded perspective view of a door showing another fixing mode of the resin plate of the conventional rack door.

[Explanation of symbols]

1 ... Rack door body, 2 ... Resin plate, 3, 3a, 3b
・ Cover body, 4 ・ ・ Opening part, 5 ・ ・ Molding plate, 5a ・ ・ Mounting part, 5b ・ ・ Window forming part, 7 ・ ・ Foam elastic body, 9 ・ ・ Locking plate, 10 ・ ・ Through hole, 11 ..Resin plates

Claims (2)

[Claims] 1. A rack door having a main body having an opening at substantially the center thereof and a resin plate covering the opening, the rack door being mounted on a rack opening surface, wherein the resin is provided on both upper and lower openings of the front surface of the main body. A cover body is provided, and the cover body is bulged forward from the front surface of the main body to provide a space between the back portion of the cover body and the main body, and the portion of the resin plate exposed from the main body opening portion is also forward from the front surface of the main body. A bulge is formed so that the space between the back of the cover body and the main body is communicated with the back space of the bulged resin plate, and a plurality of through holes are further provided on the front surface of the cover, and the space is communicated. A rack door characterized in that the through hole allows ventilation in the rack. 2. The rack door according to claim 1, wherein the resin plate is adhered to the back surface of the main body via a foamed elastic body.