JPS6018724Y2 - door device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door device for a so-called oven-type cooking device such as a toaster oven, and aims to improve assembly efficiency and reduce costs.

The door device of a conventional toaster oven consists of a window glass 1, a front door frame 2, a rear door frame 3, and a handle 4, as shown in Figs. After holding the handle 4 by the end face of 3, the handle 4 was attached to the front door frame 2 with screws 5.

・However, when assembling this door device, the rear door frame 3, window glass 1,
The front door frame 2 and the handle 4 are fitted in sequence, which requires a lot of labor and is difficult to assemble.
In addition, since the rear door frame 3 is used, the cost is high.

The present invention aims to solve the above-mentioned drawbacks, and embodiments of the present invention will be described below with reference to the accompanying drawings.

3 to 6, reference numeral 11 denotes a toaster oven main body, and a door device 12 is provided at the front opening of the oven to be opened and closed by a shaft 25.

The door device 12 is composed of a window glass 13, a window frame 14, and a handle 15.

That is, this window glass 13 has a size close to the front opening of the main body, and is protected by a window frame 14 that has a U-shaped cross section and whose upper end and left and right side edges are integrally formed. The upper end and left and right side ends are sandwiched between the opposing inner surfaces of the shaped window frame 14, and the lower end of the window glass 13 is held by the left and right bent portions 28 below the window frame 14.

In this state, the end surface of the window glass is in contact with the inner surface protrusion 26.

Reference numeral 18 denotes a connecting portion of the arm 17, which is bent and formed integrally with the window frame 14.

Further, as shown in FIG. 4, a substantially U-shaped clamping fitting 19 is attached to the handle 15 with a screw 20, and 21 is a screw 2.
27 is a recessed portion that prevents the head of the screw 20 from protruding into the inner surface of the clamping fitting after screw tightening, and the head of the screw 20 is located here.

As shown in FIG. 5, the clamping fitting 19 with the handle 15 attached thereto is elastically inserted into the upper part of the window frame 14 with its U-shaped inner surface, and is clamped and engaged.

That is, the U-shaped inner surface of the clamping fitting clamps the window frame 14, and the engaging portion 22 engages with the engaging portion 23 of the window frame 14.

This prevents the upper part A from coming off, and also prevents the upper part A from coming off.
In order to position the window frame 9 and stop its movement in the left and right direction, protrusions 25 are formed on the surface of the window frame 14 close to the left and right ends of the clamping fittings 19.

Reference numeral 24 denotes a glass abutting portion protruding from the U-shaped inner surface of the clamping fitting 19, and is used to prevent the handle 15 from shaking in the direction of arrow B.

In the above embodiment, after the window frame 14 is sandwiched between the window glass 13,
In this example, a clamping bracket 19 is installed at the top of the window frame with its position restricted, but in another embodiment, the clamping bracket is directly clamped to the window glass, and the window frame is clamped integrally with the window glass at the top of the clamping bracket. It may also be configured to be attached by wearing it.

In both the former and the latter, the gripping metal fittings of the handles are mounted by regulating their position with the window frame.

Further, in the above configuration, the upper end and left and right side ends of the window glass are protected by the window frame, but it goes without saying that the lower end may also be protected.

When a window glass is scratched, there is a risk of it breaking into pieces at that part, but the above embodiment takes into consideration the points that the lower end of the window glass is less likely to be scratched and that the window frame can be made at a lower cost. The upper end and left and right side ends are protected.

As described above, the door device of the present invention includes a window glass, a window frame having a U-shaped cross section that covers at least the upper end and left and right edges of the window glass, a handle attached in advance, and an engaging portion. a pair of protrusions are provided at the upper end of the window frame at an interval; The clamping bracket is inserted elastically, and the engaging part of the clamping bracket is engaged with the engaging part of the window frame, and the abutting part of the clamping bracket is brought into contact with the window glass, and the position of the clamping bracket is regulated by the protruding part of the window frame. This configuration eliminates the troublesome work process of aligning at least three parts, the handle, the window glass, and the window frame, and inserting and tightening the screws, as in the past.
Assembling work efficiency is improved, and since the engaging part of the clamping bracket engages with the engaging part of the window frame, it is possible to prevent the clamping bracket from coming off upwards, and the abutting part of the clamping bracket is connected to the window frame. Since it comes into contact with the glass, there is no wobbling when operating the handle.
Furthermore, since the position of the clamping bracket can be controlled by a pair of protrusions provided at the upper end of the window frame, it is possible to restrict the positional shift of the clamping bracket from side to side. Since two parts, the front door frame and the rear door frame, are not used, it has various practical effects such as cost reduction.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional door device, Fig. 2 is an assembled sectional view of the same essential parts, Fig. 3 is a perspective view of a toaster oven employing a door device according to an embodiment of the present invention, and Fig. 4 is an exploded perspective view of a conventional door device. The figure is an exploded perspective view of a main part of the door device, FIG. 5 is a sectional view of the main part, and FIG. 6 is a perspective view of the same. 13...Window glass, 14...Window frame, 1
5... Handle, 19... Clamping fittings.

Claims (1)

[Scope of utility model registration request] The window frame has a window glass, a window frame having a U-shaped cross section that covers at least the upper end and left and right side ends of the window glass, and a clamping fitting to which a handle is attached in advance and has an engaging part and an abutting part. A pair of protrusions are provided at an interval at the upper end of the window frame, and the clamping fitting is positioned between the pair of protrusions and elastically inserted into the upper end of the window frame, and the engaging part of the clamping fitting is inserted into the upper end of the window frame. A door device that engages with a retaining part of a window frame, has an abutting part of a clamping metal fitting against a window glass, and regulates the position of the clamping metal fitting with a protrusion of the window frame.