JPS6245407B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a handle attachment device for transporting a heating appliance, and an object thereof is to provide a handle attachment device that guarantees the reliability of the attachment point, has excellent appearance quality, and is capable of reducing material costs. It is something to do.

Usually, handles made of resin molded or the like that are provided on the outside of a heating appliance may cause the temperature of the handle to rise or the resin to shrink and deteriorate due to conduction heat from the appliance, resulting in incomplete connection. To this end, the contact area of the device was made small, and supports were placed between the contact surface and the handle to increase the heat conduction distance. As a result, the moment due to the weight of the instrument during transportation concentrates on the contact surface, causing distortion at that part of the instrument and degrading the appearance quality. Furthermore, if the handle is connected with screws, slight thermal contraction of the handle will cause it to wobble and become unstable during transportation, and moments will be applied to the threaded part from all directions, promoting rattling. In some cases, the handle even became detached from the device.

The present invention eliminates the drawbacks of the conventional handle attachment device described above, and embodiments of the present invention will be described below with reference to the accompanying drawings.

In Figures 1 to 3, 1 is a side plate of a toaster oven made of painted steel plate, and 2 is a carrying handle. The side plate 1 is formed with a concave surface 3, and the concave surface 3 is provided with mounting holes 4 and holes 5 for positioning on the left and right sides thereof. The handle 2 has a hand-held portion 6, a mounting post 7, and support posts 9 with positioning protrusions 8 at the tips on the left and right sides thereof, and the tips of the posts abut against the concave surface 3 of the side plate 1 mentioned above. It can be installed in different ways. The height of the mounting column 7 is lower than that of the support column 9, and when the side plate 1 and handle 2 are tightened with the screws 10, the concave surface 3 of the side plate 1 is deformed by δ. It is desirable for this deformation δ to return to the state before tightening without causing plastic deformation when the screw 10 is returned, even after the weight of the device is applied during transportation of the device. Even after the height of the support strut 9 (for example, the height of the support strut 9 shrinks) changes over time, it is sufficient if the screw is returned to the extent that a space is created between the tip of the tightening strut 7 and the surface of the side plate 1. In order to prevent plastic deformation as much as possible, given the thickness of the side plate 1 and the amount of aging due to heat of the handle 2, the diagram of the distance a of the positioning support 9 and the concave surface 3 according to the amount of deformation δ is calculated. It is sufficient to determine the b dimension shown in 4.

In the above configuration, when the toaster oven is lifted up by the handheld part 6, the concave surface 3 near the support column will be distorted as in the conventional example, but the distortion will be further increased due to the large rigidity of the aperture step on the outer periphery. There's nothing to do. Note that by making the concave surface 3 smaller than the outer surface of the handle 2, the deterioration in appearance quality due to the distortion is eliminated.

As is clear from the above explanation, according to the present invention, there is no wobbling in the attachment of the handle due to the application of heat, it can sufficiently withstand the load when carrying the instrument, and the side plate is distorted and the appearance is damaged. The side plate can be made thinner without any problems, and its industrial value is great.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a toaster oven equipped with a handle attachment device showing an embodiment of the present invention, FIG. 2 is a horizontal cross-sectional view of the same main part, and FIG. 3 is a vertical cross-sectional view of the same main part. 1...Side plate, 2...Transportation handle, 3...Concave surface,
7...Mounting post, 8...Positioning protrusion, 9...
Support post.

Claims (1)

[Claims] 1 The handle attachment part of the thin steel plate that constitutes the outer box of the heating appliance is formed into a concave surface, and a hole for positioning is provided in this concave surface, and a mounting column and supporting columns on both sides of this mounting column are attached to the handle. the mounting column is fixed to the concave surface of the thin steel plate by fitting the tip of the support column into the hole, and the height of the support column from the concave surface of the thin steel plate is set to The handle mounting device has a height greater than the height of the mounting support from the concave surface of the thin steel plate within an elastic deformation limit of .