JPH06257863A - Outer case - Google Patents

Abstract

PURPOSE:To contrive the rationalization of assembly by a method wherein parts are not fixed by clamping through a screw and the like but the parts are engaged with each other by utilizing the configurations of notch, pawl, bent and/or projection whereby an outer case can be retained stably even under the condition of temporary assembling. CONSTITUTION:A connecting part of a ceiling plate 3 between the same plate 3 and a side plate 2 is provided with projections 10, 11 while notches 5, 7, which are engaged with said projections, are provided on the side plate 2. Pawl sections 6, 8 are formed by bending one part of the notches 5, 7 and the ceiling plate is slid horizontally while inserting the projections 10, 11 into the notches 5, 7 on the side plate. In this case, the back surfaces of the projections 10, 11 of the ceiling plate 3 are abutted against the pawl sections 6, 8 of the side plate 2 whereby the ceiling plate 3 is pinched by the side plates 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer case such as a warm air heater.

[0002]

2. Description of the Related Art In assembling work of a warm air heater or the like, there is always an intermediate check work, and it is customary to carry out work according to the purpose with the outer case temporarily assembled. In particular, the work is generally performed with the front plate removed as shown in FIG. At this time, as shown in FIG.
The protrusions 16 and 18 are respectively engaged with the notches 17 and 19 of the side plate.

[0003]

However, in the configuration shown in FIGS. 5 and 6, when the assembly line vibrates during work or when a part of the operator's body touches the top plate, the top plate is attached to the side plate. It was easier to come off and the work was very laborious. Further, as shown in FIG. 7, in order to prevent the top plate from coming off, the top plate 15 and the side plate 14 are screwed together, and extra man-hours are required in the assembling work, and the screw head is conspicuous. There was a problem such as a little loss of appearance.

In order to solve the above problems, it is an object of the present invention to prevent the top plate from coming off from the side plate even in the temporarily assembled state without spoiling the appearance.

[0005]

In order to achieve the above object, the exterior case of the present invention is provided with at least a plurality of convex portions at the joint portion of the top plate with the side plates, and is fitted to the convex portions. In order to do so, the side plate is provided with a notch, and a part of it is bent and bent.

[0006]

[Operation] The convex portion of the top plate and the cutout portion of the side plate are fitted to each other,
Furthermore, some of them are bent and do not shift from each other.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an outer case structure according to the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of an outer case. In an exterior case of a household appliance such as a warm air heater, a side plate 2 and a front plate 4 are placed on a frame 1, and a top plate 3 is joined to the side plate 2 and the front plate 4. A device according to the purpose of the device is housed in this outer case. As shown in the top view of FIG. 3, the side plate 2 is provided with a bending surface 9 at its upper portion and is provided with notches 5 and 7, and further, the tabs 6 and 8 are provided close to the notches. It is provided. The top plate 3 is finished with synthetic resin or the like, and projections 10 and 11 are provided so as to fit into the cutouts 5 and 7 of the side plate 2.

A procedure for assembling the outer case having the above structure will be described. Although not shown, various devices are already incorporated on the gantry 1, and the side plate 2 is also placed on the gantry 1 by screws or the like and joined thereto. Next, the top plate 3 is the protrusion 1
Insert 0 and 11 into the notches 5 and 7 of the side plate 2 slightly obliquely upward so that they do not hit the claw bending portions 6 and 8 of the side plate 2, and slide them sideways. At this time, the back surfaces B of the protrusions 10 and 11 of the top plate 3 come into contact with the claw bending portions 6 and 8 of the side plate 2, and the top plate 3 is sandwiched by the side plate 2. After that, while inserting the claw portion 12 of the front plate 4 shown in FIG. 2 into the top plate 3, the front plate 4 is also joined to the top plate 2 and fixed with screws 13 to complete the outer case assembly.

However, in order to secure the performance of the device and maintain the safety, it is general to perform various tests with the front plate 4 removed. At this time, due to the vibration of the assembly line, the movement of the worker's hand, etc., all the actions (forces) are exerted on the device. Above all, since a device (not shown) for operating the equipment is mounted on the top plate 3, a force is always applied. Even in such a case, in the present outer case, the top plate 3 does not come off from the side plate 2, and fixing by screws or the like is unnecessary, and it is firmly held, which contributes to the rationalization of the assembly.

[0011]

As is apparent from the above description, according to the outer case of the present invention, the outer case is always in a stable state in a temporarily assembled state even when various tests that are indispensable to the process of assembling the device are confirmed. The object of the present invention is to provide a secure outer case that keeps the operator's sense of security, does not require screw tightening work and has a good appearance.

[Brief description of drawings]

FIG. 1 is an external view of an outer case according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the case.

FIG. 3 is an exploded explanatory view of the upper part of the case

FIG. 4 is a partial sectional view of the case.

FIG. 5 is a partially exploded explanatory view of a conventional outer case.

FIG. 6 is a partial external view of the case

[Figure 7] Overall appearance of the case

[Explanation of symbols]

 1 Stand 2 Side plate 3 Top plate 4 Front plate 5,7 Notch part 6,8 Claw bending part 10,11 Projection part

Claims (1)

[Claims] 1. An outer case formed of a side plate, a top plate, a front plate, and the like placed on a pedestal, wherein a plurality of protrusions are provided at a joint portion of the top plate with the side plate, and the protrusions are provided on the protrusion. An exterior case which is provided with a cutout portion on the side plate for fitting and which is partially bent.