JPS639779Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shaft support structure suitable for, for example, attaching an opening/closing door of a toaster oven.

For example, when attaching the opening/closing door of a toaster oven to a single shaft, the conventional method is to first attach the opening/closing door to the shaft, then attach fixing pieces to both ends of the shaft, and then screw those fixing pieces to the main body of the toaster. It is fixed by means such as a stopper.

However, it is more convenient to attach the opening/closing door after the main body is completed, and for this purpose, it is desirable to attach the fixing piece to the main body in advance.

However, if you attach the fixing piece in advance,
When attaching an opening/closing door to these fixed pieces via a shaft, the opening/closing door must be positioned between both fixed pieces, and the shaft must be inserted from one fixed piece through the opening/closing door and into the other fixed piece. This makes it extremely difficult to install the shaft. Further, depending on the structure of the main body portion, it may be impossible to insert a long shaft from one fixed piece to the other fixed piece.

The present invention was developed taking these circumstances into consideration, and its purpose is to provide a shaft support in which fixing pieces are attached to two plates facing each other, and both fixing pieces support both ends of a single shaft. In the structure, one end of the fixed piece is attached to the plate material in advance, and the shaft is attached to both fixed pieces from the inside of both fixed pieces by widening the distance between the other ends of both fixed pieces. The object of the present invention is to enable the structure to be firmly fixed to a plate material with a simple operation, thereby improving assembly workability.

That is, in the shaft support structure according to the present invention, a bent portion is formed at the edge of each plate, and each bent portion has an insertion groove through which a fixing piece is inserted, and an opening of this insertion groove is closed. A locking tongue piece is provided to prevent the fixing piece from being pulled out from the insertion groove, and a shaft support portion is provided at one end of the fixing piece.

Therefore, first, bend the locking tongue piece to open the opening of the insertion groove, insert the fixing piece into the insertion groove, and attach the other end of the fixing piece to the plate material using fasteners such as screws or rivets. After fastening, one end of both fixed pieces is pushed apart to support both ends of the shaft from the inside, and then the locking tongue piece is extended. As a result, the fixing piece is firmly fixed to the plate material at two locations.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the figures.

In this embodiment, the present invention is applied to a shaft support structure for attaching the shaft of the opening/closing door of a toaster oven to the toaster body.

FIG. 1 is an external view of the toaster oven, and FIG. 2 is a cross-sectional view as seen from the side. An opening/closing door 2 is provided on the front side of the outer case 1. This opening/closing door 2 has a fixed piece 3 fixed at its lower edge inside the outer case 1,
3 via a pivot shaft 4, and by grasping the handle 5 and pulling it toward you, the inlet/outlet for the ceramic material will be opened. In FIG. 1, 6 is a timer setting knob, 7 is a heat amount switching knob, and 8 is a reflector raising/lowering knob arranged on the front panel of the outer case 1. Further, reference numeral 9 in FIG. 2 is a reflector plate disposed within the incubation chamber, and this reflector plate 9 is moved up and down by operating the knob 8 for lifting and lowering the reflector plate. Straight pipe electric heating elements 10 are attached to the lower surface of the reflector 9 and to the lower part of the incubation chamber, and between the upper and lower heating elements there is placed a grid 11 on which the material to be incubated is placed. . This gridiron 11 can be taken out to the outside through the inlet/outlet for the roasted material.

As shown in FIG. 3, the opening/closing door 2 has a glass plate 14 sandwiched between a rectangular frame-shaped front plate 12 and a back plate 13, a handle 5 attached to the top of the front plate 12, and a single pivot shaft. It has a structure in which it is rotatably supported on a shaft.

The peripheral edge of the surface plate 12 is bent inward, and L-shaped opening notches 16 are provided at the lower positions of the left and right bent portions 15, which open at the bent edges.

Further, the back plate 13 has a peripheral edge bent outward, and an L-shaped opening notch 18 is provided at a lower position of the left and right bent portions 17, which also opens at the bent edge. Further, a protrusion 20 that bulges inward is provided at the center of the lower bent portion 19.

Therefore, the front plate 12 and the back plate 13 are integrated by overlapping each other's bent portions with the front plate 12 on the outside, and in this state, as shown in FIG. 4B, the opening notches 16, 18 are overlapped with each other to form a circular hole 21. Then, the pivot shaft 4 comes to be inserted into this circular hole 21. Also, the pivot shaft 4
The intermediate portion is supported by the protrusion 20 to prevent bending deformation.

On the other hand, the pivot shaft 4 has large-diameter bulges 22, 22 near both ends, and these bulges are formed, for example, by applying pressure in the axial direction.

Further, the fixing pieces 3, 3 are fixed to the left and right side plates 23, 23 of the inner case fixed inside the outer race 1.
It is attached as shown in Figure 5. The inner case constitutes a culture chamber, and the left and right side plates 23,
23 has a peripheral edge bent outward. The front bent portion 24 is provided with a locking tongue 25 and an insertion groove 26 for locking the fixing piece 3, and the fixing piece 3 is attached in the following steps. That is, the width of the insertion groove 26 is set to allow the fixing piece 3 to be inserted therethrough, and the locking tongue piece 25 located at the opening edge of the insertion groove 26 is initially bent as shown in FIG. 6A. Therefore, as shown in Figure B, the middle portion of the fixing piece 3 is inserted into the insertion groove 26, and one end of the fixing piece 3 is fixed to the outer surface of the side plate 23 with a fastening member 27 such as a screw or a rivet. Next, the distance between the fixed pieces 3, 3 is expanded, and both ends of the pivot shaft 4 are inserted into the holes 28, which serve as shaft support portions, provided in advance on the other end sides of the fixed pieces 3, 3. After inserting the fixing piece 3 from the inside, insert the locking tongue piece 25 as shown in Figure C.
, and fix the fixing piece 3 in the insertion groove 26.

According to the above configuration, the door 2 is supported by one pivot shaft 4, so that the door can be opened and closed smoothly over a long period of time. Further, the circular hole 21 through which the pivot shaft 4 is inserted is formed by overlapping the opening notch 16 on the front plate 12 side and the opening notch 18 on the back plate 13 side, so when installing the pivot shaft 4, In other words, it is only necessary to insert the pivot shaft 4 at an intermediate position from the opening side of each of the opening notches 16 and 18, making assembly extremely easy. In addition, the fixed pieces 3, 3 supporting both ends of the pivot shaft 4 have one end attached to the side plate 23 with a fastening member 27 such as a screw or a stud.
After fixing the opening/closing door 2 with the
Since it is attached to the side plate 23 by extending the cover 5, the attachment is extremely simple.

As described above based on the embodiments, the shaft support structure according to the present invention has bent portions formed at each edge of two plates that face each other at a distance, and a fixed portion is fixed to each bent portion. An insertion groove through which the piece is inserted, and a locking tongue piece that closes the opening of the insertion groove to prevent the fixed piece from being pulled out from the insertion groove, and by bending this locking tongue piece, the insertion groove is closed. The fixing pieces are inserted into each of the insertion grooves, one end of which is fastened to the plate material, and the other ends of both fixing pieces are pushed apart to open the other ends of each fixing piece. After the shaft is supported between the shaft support parts provided between the ends, the locking tongue is extended to fix the fixing tongue.

Therefore, one end of the fixed piece can be fixed to the plate material in advance, so when applying it to a toaster oven, for example, the opening/closing door can be installed after the main body is completed, and the shaft can be attached to both sides. It can be attached to the fixed piece from the inside, and can be easily assembled even with the opening/closing door attached to the shaft in advance. Furthermore, the fixing piece can be attached using a single fastening component, and in this respect as well, assembly work efficiency can be improved.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an external perspective view, Fig. 2 is a sectional view seen from the side,
Figure 3 is an exploded perspective view of the opening/closing door, Figure 4A is a side view showing the relationship between the opening notch on the front plate side and the opening notch on the back plate side, and Figure B shows the overlap of both opening notches. Figure 5 is a side view showing the state, Figure 5 is a perspective view showing the relationship between the left and right side plates and the pivot shaft, Figure 6A is a perspective view showing the shape of the fixed attachment part, and Figures B and C are the fixing piece installation process. FIG. 2... Opening/closing door, 3... Fixed piece, 4... Pivot shaft,
23... Side plate, 24... Bent portion, 25... Locking tongue piece, 26... Insertion groove, 27... Fastening component.

Claims (1)

[Scope of utility model registration request] In a shaft support structure in which fixing pieces are attached to two plates that face each other at a distance, and both fixing pieces support both ends of a single shaft, a bent portion is formed at an edge of each plate; An insertion groove formed in each bent portion, a fixing piece having a shaft support portion at one end and inserted into each of the insertion grooves, and a fastening component for fastening the other end of each fixing piece to each of the plate materials. , a locking tongue piece formed on each bent portion to close the opening of the insertion groove and opening the opening of the insertion groove when bent; A shaft support structure comprising a shaft.