JPS5922405Y2 - Door handle attachment device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a handle attachment device for the door of a so-called oven-type cooking device such as a toaster oven, and aims to improve the quality of the fitted state by preventing deformation caused by the attachment force of the handle body. It is something.

As shown in FIG. 1, the conventional toaster oven door handle attachment device has a window and a cross-shaped piece 4 bent from the outer periphery of the rear door frame 3 on the inner surface of the attachment part of the handle body 2 of the front door frame 1. An inwardly bent piece 5 is bent from the hole part to form a U-shaped bent piece, and the handle fastening screw 6 is inserted from the rear door frame 3 with its tip abutted.
The handle body 2 located on the front door frame 1 was tightened and fixed.

However, in this case, as shown in FIG. 1, the mounting surface of the handle body 2 is smaller than the width of the opposing U-shaped bent piece, so the tightening of the screw causes the force to bend and deform the tip of the front door frame 1. ,
In other words, the tip of the peripheral edge is opened, and when the handle body is tightened, only the portion swells, which poses a problem in terms of quality.

Conventionally, it was considered to make the mounting surface of the handle larger than the width of the U-shaped bent piece, but as the U-shaped bent piece became larger, it had to be made larger accordingly, and in doing so, the contact surface became larger. There was a problem in that the temperature of the handle increased.

The present invention attempts to solve the former and latter problems at the same time, and embodiments of the present invention will be described below with reference to the accompanying drawings.

In Fig. 2, reference numeral 11 denotes a toaster oven main body, and a door body 12 is supported by a shaft at the front opening thereof so as to be freely openable and closable.

Next, to explain with reference to FIG. 3, this door body 12 is the front door frame 1.
3, a rear door frame 14, a door glass 15, and a handle body 16.

This front door frame 13 has a rear bent peripheral edge 17 and a front plate 1.
8, and the front plate part 18 has a window hole 1 in the center.
9 is bored, and a window edge 26 is formed which is bent rearward from the periphery of the window hole 19.

Furthermore, a screw through hole 20 is bored in the upper part of the window hole 19, and protrusions 21 that are long in the vertical direction are formed on both sides of the hole 20.

The rear door frame 14 has an outer periphery contact portion 23 whose periphery is bent forward,
The toaster oven consists of a rear plate part 24 that covers the opening inside the oven, and the rear plate part 24 has a window hole 25 in the center and an inner peripheral abutment part 29 curved in front of the window hole 25. The rear plate portion 24 and the outer circumferential contact portion 23 form a U-shaped bent piece, and the rear plate portion 24 is provided with screw holding holes 26 .

As shown in FIG. 4, this screw holding hole 26 is formed with a stepped portion 27 so as to hide the screw head, and a band-shaped stepped portion 28 is formed in a U-shaped bent piece continuously from the stepped portion 27. Ru.

Further, 30 is a shaft for supporting the door body 12, and is a shaft for supporting the rear door frame 1.
It is penetrated and held on both sides of the outer periphery contact portion 23 of No. 4.

Next, the assembly method will be described. The corner portion of the substantially rectangular window hole 25 of the rear door frame 14 is formed with a radius, and the glass holding portion 31 is bent lower than the inner peripheral contact portion 29 at the corner portion. This allows the rectangular door glass 1
5 is held and its movement is regulated by the inner periphery abutting part, and an L-shaped piece 32 is bent from the lower periphery of the window hole 25, and this L-shaped piece 32 and the glass holding part The door glass 15 is interposed between the openings 31 and 31.

The rear door frame 14 holding the door glass 15 in this way is fitted in a manner that is inscribed in the peripheral edge 17 of the front door frame 13, and at the bottom, a stopper piece formed on the lower surface of the peripheral edge 17 of the front door frame 13 is fitted. 22 is engaged with a square hole 33 provided on the lower surface of the outer periphery contact portion 23 of the rear door frame 14, and the handle body 16 is positioned at the upper portion in the screw through hole 20 of the front plate portion 18 of the front door frame 13. The screws 34 are passed through the screw holding holes 26 of the rear plate portion 24 and tightened.

At this time, the handle body 16 is brought into contact with the protrusions 21 as shown in FIG. 5, and the screw portion between the protrusions 21 is in a ventilated state.

In addition, the protruding part 21 is longer than the boss part 35 of the handle body 16 and extends to the peripheral part 17 and near the window edge 26, so that when tightening the screw, the contact force of the boss 35 due to force is dispersed by the protruding part 21. Therefore, it has the same effect as increasing the boss width.

Incidentally, if the protruding part 21 is made shorter than the width of the boss, the contact force of the boss will be concentrated on the protruding part 21, resulting in a large bending deformation.

As described above, according to the present invention, the boss portion of the handle body comes into contact with the protruding portions longer than the bosses provided on both sides of the screw through hole in the front door frame, thereby preventing curved deformation due to tightening the screws. At the same time, the temperature rise of the handle body can be suppressed to a low level.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional door handle attachment device, Fig. 2 is an external perspective view of a toaster oven using the door handle attachment device according to an embodiment of the present invention, and Fig. 3 is a sectional view of the toaster oven using the door handle attachment device according to an embodiment of the present invention.
Figure 4 is an exploded perspective view of the door body, Figure 4 is an enlarged perspective view of the same main part, Figure 5 is an exploded perspective view of the door body.
The figure is a sectional view of the door handle attachment device of the door body, FIG. 6 is an enlarged perspective view of the main part, and FIG. 7 is a plan view of the main part. 12...Door body, 13...Front door frame, 14
... Rear door frame, 16 ... Handle body, 20.
... Screw through hole, 21 ... Protrusion, 34
...screw, 35...boss part.

Claims (1)

[Scope of utility model registration request] It consists of a door constructed by superimposing a rear door frame on a front door frame, a handle body attached to the front door frame, and a screw for fastening the handle body. A door handle attachment device characterized in that a protrusion longer than a boss of a handle body is formed laterally, and the boss is attached by coming into contact with the protrusion.