JP4421376B2 - Clean air device - Google Patents

Description

  The present invention relates to a clean air device that is installed in a clean room such as a food factory, a semiconductor factory, a pharmaceutical factory, a hospital or the like, or a clean room entrance and exit, and a casing of a device that produces clean air is formed by combining a plurality of case parts.

The clean air device is a device that sucks air with a fan and blows clean air from a blow-out port such as a blow-out nozzle or punching air that has been cleaned by a main filter. Therefore, it is necessary to partition clean air and non-clean air even in a case in which a filter and a fan are stored, and airtightness is necessary in that portion (see Patent Document 1). In addition, since the case itself must have sufficient strength, the case was welded and the joint of the case was caulked to ensure airtightness. When using an adhesive to easily connect cases without skilled skills such as simplification of work or welding work, it is difficult to manage the amount and position of the adhesive applied, making it difficult to ensure a certain level of quality. (See Patent Document 2).
Japanese Patent Publication No. 8-23425 JP-A-7-158624

  Conventionally, a casing constituting a clean air device is configured by combining a plurality of case parts. Since the joint was welded, the casing could only be produced by skilled workers. In addition, when welding is necessary for a portion to be a decorative surface of the clean air device, since the finishing work was performed, the production cost was high. In addition, since air leaks from the joint, caulking of the joint is necessary. However, when installing in a place that does not like the outgas generated from the caulking agent such as a semiconductor factory, use an expensive caulking agent that suppresses the generation of outgas. Was.

  When joining case parts with an adhesive, the amount of adhesive applied and the position where the adhesive is applied are not constant by the operator, so it is very difficult to manage and maintain quality.

  The present invention solves the above-mentioned problems, and a housing can be manufactured without using a worker who is skilled in facilitating management of the amount of adhesive applied, and uses an adhesive. Accordingly, it is an object of the present invention to provide a clean air device capable of improving the airtightness of the coupling portion, reducing the caulking work, and reducing the production cost.

  The present invention manages the position and amount of application of the adhesive by providing a groove on the joint surface of the case and applying the adhesive so as to fill the groove. The other bonding surface to be bonded is provided with a recess that enters the groove coated with the adhesive. By joining the joining surface provided with the groove and the joining surface provided with the depression and fixing the surface with a rivet, the amount of adhesion and the position of the joining surface can be easily managed.

  That is, the present invention is a clean air device such as a filter unit, a clean bench, a safety cabinet, or an air shower device installed at the entrance of a clean room, which is installed in a clean room and produces clean air. The clean air device comprises a plurality of case parts, and is provided with a groove formed on the coupling surface of one case part and a protrusion formed on the coupling surface of the other case part, and having an adhesive on the coupling surface.

  According to the present invention, the adhesive is used for the joint surface of the case, the conventional welding work is eliminated, and the application amount and the application position of the adhesive can be easily managed without a skilled worker, and the production cost is reduced. Reduction can be achieved.

The best mode for carrying out the present invention will be described.
Embodiments of the clean air device of the present invention will be described below with reference to the drawings.

  Example 1 will be described. FIG.1 and FIG.2 shows 1st embodiment of the clean air apparatus of this invention. As shown in FIG. 1, the groove 2 is provided on the joint surface of the case component 1. An adhesive 3 is applied so as to fill the groove 2. If necessary, the amount of application of the adhesive 3 is constant even if the operator changes by wiping the adhesive 3 rising from the groove 2 with a spatula or the like. Since the groove 2 of the case component 1 is previously processed and deformed by a press machine or the like at a required position, the position and length for applying the adhesive can be determined at that stage. The other case component 4 to be joined is provided with a deformed projection (indentation) 5 that fits in the groove 2 provided in the case component 1. As shown in FIG. 2, the adhesive 3 is crushed when the grooves 2 of the case part 1 and the protrusions 5 of the case part 4 are aligned, and further, the case part 1 and the case part 4 are fixed by the rivets 6. Variations in the thickness of the agent 3 and the application area can be suppressed. Note that the combination of the groove 2 of the case component 1 and the protrusion 5 of the case component 4 facilitates the positioning of the case component 1 and the case component 4. Moreover, the groove | channel 2 and the processus | protrusion 5 are provided, and the intensity | strength improvement of a coupling surface can also be aimed at.

  When the seam of the part that becomes the decorative surface of the clean air device is coupled, the position and size of the groove 2 and the protrusion 5 are changed, for example, the groove 2 or the protrusion 5 is formed on the joint surface of the bent portions of the case parts 1 and 4. By providing, it can prevent that the adhesive agent 3 protrudes outside when it couple | bonds together, and a makeup | decoration surface is soiled.

  As described in the above embodiments, the present invention is easy to manage the application of the adhesive, and by improving the airtightness of the joint surface, the caulking work can be abolished and the production cost is reduced. An air device can be provided.

Explanatory drawing of the joint surface in the coupling | bond part of the clean air apparatus of Example 1. FIG. Explanatory drawing of the coupling | bond part of the clean air apparatus of Example 1. FIG. Explanatory drawing of the joint surface in the junction part of the clean air apparatus of Example 2. FIG. Explanatory drawing of the junction part of the clean air apparatus of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Case component 2 ... Groove provided in case component 3 ... Adhesive 4 ... Case component 5 ... Depression provided in case component 6 ... Rivet 7 ... Case component 8 ... Case component 9 ... Contact member

Claims (2)

In clean air devices such as filter units, clean benches, safety cabinets, or air shower devices installed in clean room entrances and exits, which are installed in clean rooms to create clean air,
The casing constituting the clean air device is composed of a plurality of case parts joined together , and the joint part of the case parts is formed by a groove formed in one case part by processing deformation and by processing deformation in the other case part. The protrusion is made to correspond, the groove formed in the one case is filled with an adhesive, the protrusion formed in the other case part is aligned with the groove, and the coupling part is fixed by a rivet, A clean air device characterized by having a coupling structure in which an adhesive is crushed and an adhesive is applied to the coupling portion . 2. The clean air according to claim 1, wherein a groove formed by deformation on the one case part and a protrusion formed by deformation on the other case part are formed at a bent portion of each case part. apparatus.

Images