JPH09173873A - Draft chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the assembly of a draft chamber on site and make it possible to perform the on-site assembly in case there is almost no distance between the draft chamber and a ceiling. SOLUTION: This draft chamber consists of a back panel 5 installed upright by engaging unevenly the rear upper face of a lower table 4 with the lower face of the back panel 5 and lateral panels 6, 6 installed upright on both sides of the lower table by engaging the lateral panel 6 with both sides of the back panel 5 with the assistance of hook pieces and engaging holes. In addition, a ceiling panel 7 with an engaging part which is engageable with the upper ends of the back panel 5 and both lateral panels 6, 6, is installed by engaging it with the upper ends. Further, the upper parts of the back panel 5 and both lateral panels 6, 6 are joined together with the engaging part of the ceiling panel 7 horizontally with the help of screws to complete the assembly work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draft chamber, and more particularly to a draft chamber which has a simple structure and can be easily assembled on site.

[0002]

2. Description of the Related Art Regarding conventional draft chambers,
There is one disclosed in Japanese Patent Publication No. 6-16857, and such a draft chamber is intended to reduce transportation cost by enabling on-site assembly. Mainly includes a pair of side panels, a back panel, and a ceiling panel. The pair of side panels and the rear panel have a structure in which a heat insulating material is sandwiched between an outer plate and an inner plate made of a metal plate. For example, when connecting the side panel and the rear panel,
There are connecting devices at several places.
In one adjacent panel, a hook is attached so as to be rotatable about its axis, and an opening is provided in the inner plate of the panel so that the panel can be operated from the outside with a tool such as a wrench. This is a structure in which a hook is provided with a pin that can be locked, and by rotating a shaft with a tool such as a wrench, the hook can be locked to the pin and the panels can be connected to each other. Further, the ceiling panel is fixed to the side panel and the rear panel thus erected by screws from above.

[0003]

Therefore, in the conventional draft chamber, since the panels are connected to each other, the connecting device including the hook and the pin provided on the shaft which can be rotated and rotated is used. There is a problem that the structure becomes complicated and the assembly work by the connecting device is troublesome, and when installing the draft chamber on site, the ceiling panel is screwed from the top to the side panel and the rear panel. There is also a problem in that the draft chamber cannot be assembled when the ceiling is low, because it requires a space for doing so.

Therefore, the present invention is intended to provide a draft chamber which is easy to assemble on site and can be installed even when there is almost no distance between the draft chamber and the ceiling at the site where it is installed. is there.

[0005]

As a result of earnest research for solving the above-mentioned problems, the present inventor found that the rear panel is erected by fitting concave and convex portions on the rear of the lower base and the lower surface of the rear panel. The side panels are engaged with the hook pieces on both sides of the rear panel through the locking holes, and the side panels are erected on both sides of the lower stand, and a fitting portion that can be fitted to the upper ends of the rear panel and both side panels is provided. Provided the present invention by developing a draft chamber characterized in that the ceiling panel is mounted by fitting and the upper parts of the back panel and both side panels and the fitting part of the ceiling panel are assembled with screws from the horizontal direction and assembled. To do.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment in which the draft chamber of the present invention is embodied will be described. The draft chamber A shown in FIGS. 1 to 14 relates to a typical embodiment according to the present invention.

As shown in FIGS. 1 and 2, the draft chamber A is provided with a front door 3 slidably up and down on the front surface of the processing chamber 2 of the draft chamber main body 1, and the front door 3
The balance weight is hung on the other end of the support strip on which the front door 3 is hung.

As shown in FIGS. 1 to 3, the draft chamber A is mainly composed of a lower table 4, a rear panel 5, a pair of side panels 6 and 6, a ceiling panel 7, a lighting box 8, a front door 3 and the like. There is.

As shown in FIG. 3, the lower base 4 is assembled by a pair of leg panels 9, 9, a door 10, an operation panel 11, and a top plate 12.

Further, a rear panel ground rail 13 is provided behind the upper surface of the lower table 4. This ground rail 13
As shown in FIG. 4 and FIG. 8, an opening 15 is provided in the lengthwise direction while leaving both ends of the lower surface of the quadrangular cylindrical body 14, and is set to have substantially the same width as the width of the lower stand 4. . And FIG.
As shown in FIG. 3, behind the upper surface of the lower table 4, the ground rail 13 is placed with the opening 15 downward, and the ground rail 13 is passed through the opening 15.
Fasten the screws 16 to the lower base 4 from above the rear ground rail 13 to fix it.

As shown in FIGS. 8 and 9, the rear panel 5 is first fitted by providing a substantially U-shaped member on the lower surface of the rear panel body 17 having a size that can be externally fitted to the ground rail 13. A groove 18 is formed, and a through hole 20 is formed in the upper piece 19 of the substantially U-shaped member at a position where the ground rail 13 is fixed by the screw 16. The first fitting convex strip 21 is formed by bending it toward the left side toward the first direction, and further, as shown in FIG. Pin 23 screwed and fixed in the axial direction
Is provided upright and a plurality of locking holes 24 are provided on both sides at predetermined intervals. Further, in the illustrated draft chamber A, as shown in FIG. 6, a pair of left and right rear panels 5a and 5b are provided on the side of the upper surface of the lower table 4, and as shown in FIG. On the contact surface between the panel 5b and the left rear panel 5a, two engageable claw pieces 25 and fixing holes 26 are provided so that the two rear panels 5a and 5b can be arranged side by side.

As shown in FIG. 12, the side panel 6 has a support portion 28 bent outward in an L shape on the lower surface of the side panel body 27, and an upper surface of the side panel body 27. An upper part 29 bent outward in an L shape is formed, and a dent is provided at a corner of the upper part 29 to form a receiving part 30. As shown in FIG. Downward hook pieces 31 that can be locked in the locking holes 24 of the rear panel 5 are provided at predetermined intervals. In the above example, the locking holes 24 are provided on both sides of the surface of the rear panel 5 and the hook pieces 31 are provided on the back surface of the side panel 6, but by using the hook pieces 31 bent upward. It is also possible to reverse the attachment of the locking hole 24 and the hook piece 31.

As shown in FIG. 3, the ceiling panel 7 has an exhaust port 32 at the center of the ceiling panel body 33, and inside the upper portion of the rear panel 5 and part of the upper portions of both side panels 6 and 6. As shown in FIGS. 11 and 12, the structure is such that the ceiling panel body 33 is bent upward from both side surfaces in an L shape to form the side portions 34, and the ceiling panel body 33 is provided. The second fitting concave groove 35 is formed by bending the rear surface 33 from the rear surface toward the outside that can be fitted to the first fitting convex strip 21 of the rear panel 5 to form the second fitting concave groove 35. From the front surface, the second fitting ridge 36 is formed by bending it in an L shape toward the front.

As shown in FIGS. 11 and 13, the illumination box 8 has a box-shaped box main body 37 with an open top surface, and is a member for installing a fluorescent lamp, and a back plate 38 of the box main body 37. Bend the tip of L to the rear and form a third fitting groove
39 is formed, the tip end of the side plate 40 is projected outward, and is bent in a U shape so that it can be fitted into the receiving portion 30 of the side panel 6 described above. Is formed.

Further, the ceiling panel 7 and the lighting box 8 are provided on the rear panel 5 and the pair of side panels 6 and 6 which are erected on the lower table 4, and the ceiling panel 7 is integrally provided on the upper surface.
The ceiling panel 7 may be provided with a fluorescent lamp.

When assembling the draft chamber A, as shown in FIG. 10, the claw piece of the right rear panel 5b is used.
25 is engaged with the fixing hole 26 of the left rear panel 5a to connect the panels to each other, and as shown in FIG. 9, is placed in the through hole 20 of the U-shaped member provided below the rear panel 5. Positioning is performed by positioning the head of the screw 16 protruding from the surface of the rail 13, and the first fitting groove 18 of the rear panel 5 is provided on the ground rail 13 provided behind the upper surface of the lower base 4 as shown in FIG. 5, the hook pieces 31 of the side panel 6 are locked in the locking holes 24 of the rear panel 5 to incorporate the side panels 6 on both sides of the rear panel 5, and the side panel 6 Support for panel 6
The back panel 5 and the pair of side panels 6 and 6 can be erected on the upper surface of the lower table 4 by fixing the screws 16 to the 28.

Further, as shown in FIGS. 7, 11 and 12, the second fitting concave groove 35 of the ceiling panel 7 is fitted into the first fitting convex strip 21 of the rear panel 5, and the ceiling panel 7 Side of
By fitting 34 into the receiving portion 30 of the side panels 6,6, the ceiling panel 7 is engaged with the rear panel 5 and the upper portions of the pair of side panels 6,6, and then shown in FIGS. The third fitting groove 39 of the lighting box 8 to the second of the ceiling panel 7.
It fits into the fitting ridge 36 and the third part of the lighting box 8
By fitting the fitting ridges 41 into the receiving portions 30 of the side panels 6 and 6, the illumination box 8 is engaged with the rear panel 5 and the pair of side panels 6 and 6, as shown in FIGS. 11 and 12. Fix the ceiling panel 7 and the back panel 5 with screws 16 from the inside, and fix the ceiling panel 7 and the side panels 6 and 6 with screws from the inside.
16 and then the lighting box 8 and the ceiling panel 7 from inside with screws 16 and the lighting box 8 and both side panels 6 and 6 from inside with screws 16 to assemble. You can In the above example, the screws 16 are fixed horizontally from the inside to the outside, but it is also possible to fix the screws 16 horizontally from the outside to the inside.

Further, as shown in FIGS. 2 and 14, a baffle having a through hole 42, which is vertically divided into two parts on the front surface of the rear panel 5 and is formed in accordance with the position of the pin 23 of the rear panel 5. The mounting bolt 22 is screwed through the through hole 42 into the screw hole formed in the axial direction of the pin 23 to clamp and fix 43.
As shown in FIG. 3, the front panel 49 is fixed to the front surfaces of the side panels 6 and 6 with the screws 16 via the support fittings 50, the side cover 44 is provided on the outer surface of the side panel 6, and the upper surface of the ceiling panel 7 is provided. , An exhaust pipe 45 having a damper inside, and a side air guide 4 on the front of the side panels 6 and 6.
6 and 46 are provided, and the aero wheel 47 communicating with both side air guides 46 and 46 can be attached to the upper surface of the top plate 12 of the lower base 4 via the attachment fitting 48 to assemble the whole.

As described above, according to the draft chamber A of this embodiment, as shown in FIGS. 4 to 7, the rear panel 5 is erected on the upper surface of the lower table 4 by the fitting of the concavities and convexities, and the hook of the side panel 6 is provided. The pieces 31 are locked in the locking holes 24 on both sides of the rear panel 5, and the side panels 6 and 6 are erected on the upper surface of the lower stand 4, and the ceiling is provided above the rear panel 5 and both side panels 6 and 6 thus erected. Attach the panel 7 and the lighting box 8 by fitting the concavities and convexities.
The ceiling panel 7, the side panels 6, 6 and the rear panel 5 are fixed with screws 16 from the inside, and the lighting box 8 and the ceiling panel 7 are attached.
Since the lighting box 8 and the side panels 6, 6 can be fixed by the screws 16 from the inside, the screws 16 can be fastened from the horizontal direction, and the draft chamber A can be easily assembled. Moreover, since the working space between the upper surface of the draft chamber A and the ceiling is not required, the height of the draft chamber A is not regulated by the height of the ceiling unlike the conventional draft chamber A.

Further, according to the draft chamber A of the present embodiment, the rear panel 5 and the pair of side panels are provided on the upper surface of the lower table 4 by utilizing the fitting of the unevenness and the engagement of the hook piece 31 and the locking hole 24. 6, 6, ceiling panel 7, lighting box 8 assembled,
Since the structure is fixed with screws 16, the structure is very simple.

The above-described embodiment is merely an example, and the assembly can be made possible by using other various fitting structures such as inverting the fitting irregularities.

[0022]

As apparent from the above description, the following operations and effects are obtained. According to the draft chamber of the present invention, the back panel is erected on the upper surface of the lower table by fitting the concave and convex portions, and the hook pieces provided on the side panel and the rear panel are engaged with the locking holes to bring the side panel into the upper surface of the lower table. Stand upright,
In this way, the ceiling panel can be fitted to the upper part of the rear panel and both side panels that are erected in this way, and the ceiling panel, both side panels and the rear panel can be screwed from the inside, so the screws can be fastened from the horizontal direction. , Not only can you easily assemble the draft chamber,
Since no working space is required between the upper surface of the draft chamber and the ceiling, the height of the ceiling does not regulate the height of the draft chamber unlike the conventional draft chamber.

Further, according to the draft chamber of the present invention, the rear panel, the pair of side panels and the ceiling panel are assembled on the upper surface of the lower table by utilizing the fitting of the unevenness and the engagement between the hook piece and the locking hole. Since the structure is fixed with screws,
It has a very simple structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a draft chamber of a representative embodiment according to the present invention.

FIG. 2 is a vertical sectional view of a draft chamber.

FIG. 3 is an exploded perspective view of a draft chamber.

FIG. 4 is a perspective view showing an assembly procedure of the draft chamber.

FIG. 5 is a perspective view showing an assembly procedure of the draft chamber.

FIG. 6 is a perspective view showing an assembly procedure of the draft chamber.

FIG. 7 is a perspective view showing an assembly procedure of the draft chamber.

FIG. 8 is an explanatory sectional view showing a fitted state of the ground rail and the rear panel.

FIG. 9 is an explanatory cross-sectional view showing a connected state of the back panel and the side panel.

FIG. 10 is an explanatory cross-sectional view showing a connected state between the rear panel and the rear panel.

FIG. 11 is an explanatory cross-sectional view showing a fitted state of the ceiling panel and the lighting box.

FIG. 12 is an explanatory cross-sectional view showing a fitted state of both side panels and a ceiling panel.

FIG. 13 is an explanatory cross-sectional view showing a connected state of both side panels and the lighting box.

FIG. 14 is an enlarged cross-sectional view of the main part with the baffle attached to the rear panel.

[Explanation of symbols]

A Draft chamber 1 Draft chamber body 2 Processing chamber 3 Front door 4 Lower stand 5 Back panel 6 Side panel 7 Ceiling panel 8 Lighting box 9 Leg panel 10 Door 11 Operation panel 12 Top panel 13 Ground rail 14 Cylindrical body 15 Opening 16 Screw 17 Rear panel body 18 1st
Mating groove 19 Upper piece 20 Through hole 21 First fitting convex groove 22 Mounting bolt 23 Pin 24 Locking hole 25 Claw piece 26 Fixing hole 27 Side panel body 28 Support part 29 Upper part 30 Receiving part 31 Hook piece 32 Exhaust port 33 Ceiling panel body 34 Side 35 Second fitting groove 36 Second
Mating convex strip 37 Box body 38 Back plate 39 Third mating concave groove 40 Side plate 41 Third mating convex strip 42 Through hole 43 Baffle 44 Side cover 45 Exhaust pipe 46 Side air guide 47 Aerofoil 48 Mounting bracket 49 Front panel 50 support bracket

Claims (1)

[Claims] 1. A lower stand by vertically mounting a rear panel on the upper surface of the lower stand and a lower surface of the rear panel by fitting concave and convex parts, and engaging side pieces with hook pieces and locking holes on both sides of the rear panel. Side panels are erected on both sides of the back panel and ceiling panels having fitting portions that can be fitted to the upper ends of the back panel and both side panels are fitted by fitting, and the upper side of the back panel and both side panels and the ceiling panel Draft chamber characterized in that the fitting part is assembled with screws from the horizontal direction.