JPS609214B2 - door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door that can be used, for example, in an electric cooking appliance such as a toaster oven.

Additionally, this type of door is constructed by disposing a metal door frame around a glass plate and attaching a hinge and a handle to the door frame.

The door frame is provided with a front plate and a back plate in which a window in which a glass plate is placed is formed by punching out a flat plate, and these front plates and hair plates are combined to sandwich a glass plate. According to such a structure, there are problems in that the material for the central window becomes scrap, and the hinge for attaching the main body must be manufactured as a separate part using a pin or shaft.
Therefore, there are problems in that material costs are high, expensive materials are difficult to use, and assembly requires a high number of man-hours and a large number of parts. In addition, in order to solve the above-mentioned problem, we formed a frame with a channel-shaped cross section, bent one frame into a U-shape, inserted a glass plate from the open side, and then bent the frame into a straight frame. is being assembled.

With this kind of structure, there is no generation of scrap,
Although this has the advantage that materials can be used effectively and expensive materials can be used, another problem arises in that it is difficult to make the joints of the frame tightly fit. The present invention has been made in view of the above points, and an object of the present invention is to provide a door that does not waste material and ensures close contact between joints.

Since it is necessary to attach the door handle to the door frame, the present invention sets the attachment part of the door handle near the joining edge of the door frame so that the abutting part and the troubled surface engage when the door handle is attached. The structure is such that the greens are joined to each other.

A first embodiment of the present invention will be described based on FIGS. 1 to 5. This example relates to a toaster oven.
The inside of the main body case 1 is a sex room 2, and a door body 3 is attached to an opening □ formed in the front of this sex room 2 so as to be openable and closable. This door body 3 consists of a glass plate 4 serving as an intermediate plate, a door frame 5 attached around the glass plate 4, and a door handle 6 fixed to the door frame 5. The glass plate 4 has a rectangular shape, and the door frame 5 is made of a metal plate having bent portions 8 at positions corresponding to the corners 7 of the glass plate 4, and each side has an outer surface 9 and a back surface 10. , front 11,
It consists of a glass holding surface 12. The upper middle part has joining greens 13 facing each other. This joining edge 13
A handle attachment portion 14 is formed near the handle. This handle mounting portion 14 is comprised of a long and narrow slit 15 formed on the front surface 11 and a hole 17 for a mounting screw 16 formed on the back surface 10'. Further, on the joining edge 13 side of the slit 15, a curved surface 19 is formed by a tongue piece 18 that is elastically bent inward. Next, the door handle 6 has a grip portion 21 that protrudes to the outside of the flange 20, and the inner surface of the flange 20 has a plate-like projection 22 for inserting the slit 15 into it, and the door handle 6 comes into contact with the front surface 11 for the attachment. A screw post 23 into which the screw 16 is screwed is formed.
One end of the plate-like projection 22 is a contact portion 24 that abuts against the forehead slope 19. Further, a hinge projection 25 is cut and raised from the outer side surface 9 below the door frame 5 and projects outward. In such a configuration, when assembling the door body 3, first open the door frame 5 as shown in FIG. 2 and insert the glass plate 4, then assemble the door frame 5 as shown in FIG. is closed around the glass plate 4, and the plate-shaped protrusion 22 of the door handle 6 is inserted into the slit 15.

Next, the mounting screw 16 is inserted into the hole 17 and the slit 15 in this order, and is screwed into the screw boss 23 and tightened. At this time, as the tightening force increases, the twill part 24 hits the forehead slope 19 and the tongue By pressing the pieces 18, the joining edges 13 of the door frame 5 are brought into close contact with each other without any gaps. The dimensional relationship of this part is such that after the joint green 13 comes into contact, the door handle 6 is further tightened to some extent, and the tongue piece 18 is elastically deformed as shown in FIG. next,
A second embodiment of the present invention will be described based on FIG.

The same parts as in the previous embodiment are designated by the same reference numerals, and the description thereof will be omitted. In this embodiment, an elastic leg 27 is formed on the door handle 6 and has a forehead slope 26 that is inserted into the slit 15, and the end of the slit 15 is the rear part 28. Also, the seventh
What is shown in the figure is a third embodiment of the present invention, in which a tongue piece 30 serving as a supporting part 29 is formed in a slit 15 of a door frame 5 with one end free, and a plate-shaped protrusion 22 of a door handle 6 has a tongue piece 30 formed in a free state. Side slope 3
1 was formed.

In the present invention, as described above, the door frame that connects the middle plate is formed into a picture frame shape with a bent part, so it can be manufactured with very little scrap generated during press processing.
As a result, material costs are not wasted, and expensive materials can be used to improve the appearance. In particular, when installing a door handle, it is possible to ensure that the joint green of the door frame is tightly adhered. It is effective.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a toaster oven, Fig. 2 is an exploded perspective view showing the first embodiment of the present invention, Fig. 3 is an enlarged perspective view of the section shown by arrow A in Fig. FIG. 5 is a partially cutaway plan view showing a second embodiment of the present invention, and FIG. 7 is a partially cutaway plan view showing a second embodiment of the present invention. FIG. 2 is a partially cutaway plan view showing an embodiment of the present invention. 4...Glass plate (middle plate), 5...Door frame,
6...Door handle, 7...Corner, 8...
...Bent part, 13... Joint green, 14... Handle attachment part, 19... Inclined surface, 24... Supporting part, 26... Inclined surface, 28, 29...
Contact portion, 31... forehead slope. Hayabusa Official ′ Zu Z Zu Han J Zu Corner

Claims (1)

[Claims] 1. Forming a frame-shaped door frame that has bent parts at positions corresponding to the corners of the middle plate and is attached around the middle plate, and forming joining edges facing each other on one side of the door frame, A handle mounting portion for fastening the door handle is formed near the joint edge, and a slope surface is biased in a direction in which the joint edges are joined together by the mounting force of the door handle, and a contact portion that abuts the slope surface is formed. one of the contacting portions is formed on one of the door frame and the door handle, and the other of the inclined surface and the contacting portion is formed on the other of the door frame and the door handle. A door characterized by being formed into.