JPH0610068Y2 - Door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a door device, for example, an opening provided at a lower portion of a range main body is axially supported by a door for opening and closing the opening. The present invention relates to a door device of a built-in range in which the main valve of gas is opened and closed, or a door device of a battery storage chamber of an electric appliance.

(Prior Art) As a conventional device of this type, a pivot is provided on one of both inner side walls of an opening of a main body and both side plates of a door, and a shaft hole is opened on the other side, and the shaft is inserted into the shaft hole. It is known that the door is pivotally supported so that it can be opened and closed.

(Problems to be Solved by the Invention) In the above-mentioned conventional device, both side plates of the door must be deformed inward in order to insert the pivot into the shaft hole, and the length of the shaft to be inserted into the shaft hole is longer than the insertion length. There is a risk that both side plates will be plastically deformed because they must be deformed.In that case, both side plates must be corrected to their original shape, and a large amount of force is required for deformation during insertion and correction after insertion. Also, there is a possibility that it cannot be completely corrected.

As is known from Japanese Utility Model Laid-Open No. 51-147719, the pivot is formed in a rectangular shape in cross section, and a slit-like notch that is continuous with the shaft hole and is slightly wider than the thickness of the pivot is provided, and the pivot is passed through the notch. Although it may be possible to insert the door into the shaft hole, in this case, a part of the peripheral edge of the shaft hole is cut out by the notch, so the end of the pivot is caught in the notch during the opening / closing operation of the door and the door is smoothly opened. If the door cannot be opened or closed, or the Axis will come off through the notch while opening or closing the door.

Therefore, in view of the above problems, the present invention does not require large deformation of both side plates of the door when inserting the pivot into the shaft hole, and there is a risk that the pivot will come off once the pivot is inserted into the shaft hole. It is an object of the present invention to provide a door device that can be smoothly opened and closed without the need.

(Means for Solving the Problems) In order to achieve the above object, the invention of claim 1 is a door for opening and closing a pivot having a rectangular cross section provided on both inner side walls of an opening provided in the main body. In the door device in which a shaft hole having a diameter smaller than the long side dimension of the cross section of the pivot is opened on both side plates of the door, and each pivot is inserted into each shaft hole to pivotally support the door on the pivot, Both side plates are formed so as to be elastically bendable inward, and guide grooves wider in width than the short side dimension of the cross section of the pivot shaft are formed in the shaft hole on both side plates of the door. It is characterized in that the distance between the bottom surfaces of the guide grooves on both sides is longer than the distance between the tips of the pivots on both sides.

According to a second aspect of the present invention, a pivot having a rectangular cross section is provided on both side plates of a door that opens and closes the opening provided in the main body, and both inner side walls of the opening have a diameter smaller than the long side dimension of the cross section of the pivot. In a door device in which an axial hole is opened and each pivot is inserted into each axial hole to pivotally support the door on the pivot, both side plates of the door are formed so as to be elastically bendable inward, respectively. On both inner side walls of the opening, guide grooves that are recessed outward in a groove shape and are wider than the short side dimension of the cross section of the pivot shaft so as to reach the shaft hole, and the distance between the bottom surfaces of the guide grooves on both sides is It is characterized in that it is made shorter than the distance between the tips of the pivots.

(Function) Since the guide groove is recessed in the insertion direction of the pivot, the amount of deforming both side plates of the door inward is reduced by the depth of the guide groove.
The pivot can be inserted into the shaft hole without significantly deforming the both side plates. Also, once the pivot is inserted into the shaft hole, both side plates are restored to their original shape, and the peripheral edge of the shaft hole engages with the pivot around the entire circumference including the part where the guide groove is provided, thus opening and closing the door. The door will not come off or get caught on the way.

(Example) Next, an example when applied to a built-in range will be described with reference to the drawings.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a range main body in which a stove 2 having a heating portion 2a on the upper surface and an oven and other cooking utensils 3 are vertically assembled. The range main body 1 is a counter top of a kitchen set 4. It is stored in the storage space adjacent to the other cooking door 6 on the lower surface of 5.

The microwave oven main body 1 is provided with a door 7 that opens and closes at the lower side of the cooking utensil 3 on the front side thereof for opening a gas main valve provided inside the space. The explanation is as follows.

An opening 8 is provided below the cookware 3 on the front surface of the cooker body 1.
The plate-shaped side walls 9 of the opening 8 constituting the bearing are provided with projections 10 which are pivots formed by cut and raised pieces cut and raised inward.

On the other hand, the door 7 has elastically deformable side plates 11, 11 on both sides,
Each side plate 11 has a shaft hole 12 having a diameter larger than the long side dimension of the cross section of the protrusion 10 and a guide groove 13 formed by drawing with a width slightly smaller than the short side dimension of the cross section of the protrusion 10 continuous with the shaft hole 12. Is provided. The guide groove 13 is formed so as to be recessed toward the inside of the side plates 11 in the facing direction.

The door 7 is attached to the opening 8 by the projection between the open position shown by the dotted line and the closed position shown by the solid line of the door 7 as shown in FIG.
The shaft 10 is engaged with the shaft hole 12 through the guide groove 13.
In this case, the side plate 1 of the door 7 is larger than the dimension A between the tips of the protrusions 10 and 10.
The dimension B between the two bottom surfaces of the guide groove 13 provided in each of 1 and 11 is slightly large, for example, the dimension A is 300 mm and the dimension B is 302 mm. When passing through the groove 13, the dimension B between the bottoms of both guide grooves 13 as described above.
Is 2 mm larger than dimension A, so guide groove 13 is 1 mm
The protrusions 10 are inserted into the shaft holes 12 by pressing them inward. That is, assuming that the depth of the guide groove 13 is 3 mm, for example, the guide groove 13
In the case of not providing the above, both side plates 11 must be bent inward by 4 mm, but in the case of this embodiment, it is sufficient to bend each side plate by 1 mm. After engaging the projection 10 with the shaft hole 12, the guide groove 13 returns to its original position, and the tip end side of the projection 10 is locked over the entire circumference of the peripheral edge of the shaft hole 12, so that the door 7 does not fall off. Guide groove
It does not get caught in the part where 13 is formed.

Further, after locking, the diameter of the shaft hole 12 is set to be slightly larger than the long side dimension of the cut and raised piece which is the projection 10, so that rattling is less likely to occur in the opening and closing operation of the door 7, and the inner end of the guide groove 13 is Although a part of the periphery of the hole 12 is formed, the door 7 is more difficult to come off because the door 7 is attached and detached as described above.

In the above-described embodiment, the side walls 9, 9 of the opening 8 of the range body 1 are provided with the projections 10, and the side plates 11, 11 of the door 7 are provided with the shaft hole 12 and the guide groove 13 continuous with the shaft hole 12. Of course, the shaft hole 12 and the guide groove 13 may be provided in the side walls 9 and 9 and the protrusion 10 may be provided in the side plates 11 and 11.

(Effect of the Invention) As described above, according to the present invention, since the guide groove is provided, the pivot can be inserted into the shaft hole without significantly deforming both side plates of the door. Further, once the pivot is inserted into the shaft hole, the door does not come off and is not caught.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an example of an embodiment in which the present invention is applied to a built-in range, FIG. 2 is an exploded perspective view showing a main part thereof, and FIG. 3 is an explanatory view for explaining how to install a door. Is. 7 ... Door, 9 ... Inner wall, 10 ... Axis 12 ... Shaft hole, 13 ... Guide groove

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Makoto Takeuchi 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya, Aichi Prefecture, Rinnai Co., Ltd. (56) References: 51-147719 (JP, U) 53-122222 (JP, U) Actual public 47-29181 (JP, Y1)

Claims (2)

[Scope of utility model registration request] 1. A shaft having a rectangular cross section is projected on both inner side walls of an opening formed in a main body, and a shaft hole having a diameter smaller than the long side dimension of the cross section of the shaft is formed on both side plates of a door for opening and closing the opening. A door device in which each pivot is inserted into each axial hole so that the door is pivotally supported by the pivot, both side plates of the door are formed so as to be elastically bendable inward, and On both sides,
A guide groove that is recessed inward in a groove shape and is wider than the short side dimension of the cross section of the pivot shaft so that it reaches the shaft hole, and the distance between the bottom surfaces of the guide grooves on both sides is longer than the distance between the tips of the pivot shafts on both sides. A door device characterized in that 2. A pivot shaft having a rectangular cross section is projected on both side plates of a door for opening and closing an opening provided in the main body, and a shaft hole having a diameter slightly smaller than the long side dimension of the cross section of the pivot shaft is provided on both inner side walls of the opening. A door device in which each pivot is inserted into each axial hole so that the door is pivotally supported by the pivot, both side plates of the door are formed so as to be elastically bendable inward, and Guide grooves that are recessed outwardly in a groove shape on both inner side walls and are wider than the short side dimension of the cross section of the pivot shaft so that they reach the shaft hole, and the distance between the bottom surfaces of the guide grooves on both sides is A door device characterized by being shorter than the distance between the tips.