JPH0112236Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cooking device for cooking food materials, and more particularly to a timer display mechanism.

Generally, a cooking device such as a toaster oven as shown in FIGS. 1 to 3 is used. This toaster oven houses a heating element and a timer inside to heat food materials. Further, this toaster oven has an opening/closing door 2 and a timer display mechanism 3 (hereinafter referred to as the display mechanism) on the front of the case 1, and a timer knob 4 connected to the display mechanism 3 is provided on the side surface. There is. By rotating the timer knob 4, a built-in timer is activated, and the heating element is energized for the time set by the timer to heat the food material.
The display mechanism 3 displays the cooking time set by the timer using an indication band 3A, and the display band 3A displays the remaining cooking time in conjunction with the timer. This conventional display mechanism 3 was constructed as follows. That is, a groove 3C is provided along the vertical direction in the widthwise central part of the display substrate 3B formed of synthetic resin, and this groove 3C
The lower end of the display board 3B communicates with the back surface of the display board 3B and forms an insertion opening 3D. In addition, this display board 3B
A transparent plate 3E is closely attached to the front surface side of the display band passage 5 by closing the opening of the groove 3C. A transparent film 3F on which a scale indicating the cooking time is printed by means of vapor deposition or the like is adhered to the surface of the transparent plate 3E. Further, the display substrate 3B, the transparent plate 3E, and the transparent film 3F are integrally formed with a fixing member 3G,
It is fixed to the front surface of the case 1 via heat insulating plates 3K. The display band 3A is inserted into a display band passage 5 formed by a display substrate 3B and a transparent plate 3E, and is wound around a roller 3H. This roller 3H is housed in a roller cover 3J having a guide path 3I for guiding the display band 3A to the display band passage 5. This roller 3H is mounted on a common shaft between the timer and timer knob 4, and inserts the display band 3A into the display band passage 5 in accordance with the rotation of the timer knob 4. At this time, on the front surface of the display mechanism 3, it is possible to visually observe through the transparent plate 3E and the transparent film 3F that the display band 3A is rising in the display band passage 5 according to the amount of rotation of the timer knob 4, and the transparent film The timer can be set at any position on the scale on 3F. After setting the timer, the timer rotates the roller 3H and the timer knob 4 in the direction of winding up the display band 3A onto the roller 3H as time passes, and after the predetermined cooking time has passed, the display band 3A is on the scale. It is wound around the roller 3H so as to indicate the 0 position.

The conventional display mechanism 3 configured as described above has the following problems.

First, the temperature of the case 1 rises to such an extent that the synthetic resin softens due to heating by the heating element of the toaster oven.On the other hand, the display substrate 3B attached to the case 1 is formed of synthetic resin. Further, the display band 3A inserted into the display substrate 3B is also made of a material with poor heat resistance such as polyester. For this reason, in the conventional display mechanism 3, it was necessary to attach the display mechanism 3 to the case 1 via the heat insulating plates 3K, which resulted in a problem that the structure was complicated and the number of steps required for assembly was increased. Furthermore, the display substrate 3B, the transparent plate 3E, etc. are attached to the case 1 using the mounting brackets 3G, which has a complicated structure and requires many steps for assembly.

The present invention was developed in consideration of the above circumstances, and its purpose is to simplify the structure by eliminating the need for a heat insulating board, prevent softening of the display substrate, and at the same time To provide a timer display mechanism for a cooker whose appearance can also be improved.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 9. Figure 4 shows the timer display mechanism of the toaster oven of the first embodiment, and 1 in the figure.
is the case. A display substrate 6 and a transparent scale plate 7 are provided on the front side of the case 1. A display band guide groove 6A (hereinafter referred to as a guide groove) is provided in the center of the display substrate 6 along the vertical direction, and a transparent scale plate 7 is bonded to the display substrate 6 by means such as welding. There is. Further, a timer section 8 is provided on the back side of the case 1, and this timer section 8 includes a timer 8A, a roller 8B, and a roller cover 8.
It consists of C and timer knob 8D. The timer 8A, roller 8B, and timer knob 8D are rotatably attached as a unit. A display strip 3A formed into a thin strip of a flexible material such as polyethylene is wound around the roller 8B. This display band 3A is the roller cover 8C
from the guide portion 8E of the display board 6 to the guide groove 6A of the display board 6.
The guide groove 6A is guided up and down in accordance with the movement of the roller section 8B.

The structure of this display substrate 6 will be explained below with reference to FIGS. 5 to 7. A guide groove 6A is provided in the center of the display substrate 6 along the vertical direction, and the guide groove 6A is open toward the display surface side of the display substrate 6. Further, this guide groove 6A is formed so that the display band 3A is inserted therethrough. A timer display band insertion opening 6C is provided at the lower end of the guide groove 6A and opens toward the back side. On the back side of the display substrate 6, several convex mounting portions 6I are integrally protruded as shown in FIG. A stepped portion 6F is provided at the periphery of this display substrate, and the transparent scale plate 7 is welded to the stepped portion 6F. This display substrate 6 is integrally molded by a method such as injection molding, and is therefore formed as described above.

A display mechanism including such a display substrate 6 is constructed as shown in FIGS. 8 and 9. The display mechanism of the present invention is mounted on a predetermined mounting portion 10 on the outer surface of the case 1 of the cooker, and has a mounting 6I integrally formed on the back side of the display board 6 protrudingly provided.
On the other hand, the mounting part 10 of the case 1 is formed in a concave shape so that the display surface of the display mechanism and the front surface of the case 1 are substantially flat in accordance with the shape of the back side of the display board 6, and the mounting part 6I... 6 is attached to the mounting portion 10 of the case 1. That is, the outer surface of the case 1 around the mounting part 10 and the display surface are made substantially flush with each other, and the peripheral side surface 1 of the mounting part 10 is made substantially flush with the display surface.
The display board 6 and the scale plate 7 are housed with their entire circumferences separated from 0a, and the display board 6
The mounting portion 6I is brought into contact with the rear end surface 10b of the mounting portion 10, and an air flow path A is provided between the rear end surface 10b and the back surface of the display board 6, and air flows to the mounting portion 6I through the rear end surface 10b. The display board 6 is mounted in the mounting section 10 via screws 11 that are screwed together. Therefore, since the display mechanism is in contact with the mounting part 10 of the case 1 at only a few mounting parts 6I, heat conduction from the mounting part 10 to the display board 6 can be minimized. In addition to this, the attachment part 1 of the case 1
0 and the display substrate 6 are cooled by convection air through the air flow path A formed between them, thereby preventing the temperature from rising to the extent that the display substrate 6 made of synthetic resin becomes soft. Therefore, insulation board 3
K... can be omitted. Also, mounting bracket 3
There is also the advantage that G is not required and the assembly process can be shortened. Furthermore, since the surface of the display mechanism and the front surface of the case 1 are substantially flat, the entire circumferential surface of the display mechanism is covered by the circumferential side surface 10a of the mounting part 10, so that several mounting parts 6I and air flow passages are covered. Since A is not exposed to the outside, the appearance can be improved.

The present invention is not limited to the above-described embodiment, but can be applied to various cooking appliances having a built-in timer.

As explained above, the timer display mechanism of the cooker according to the present invention includes a flexible thin timer display band that is gradually wrapped around the timer part as the timer operates, and a timer display band that is open toward the display surface. A display band guide groove is provided, one end of this guide groove has a timer display band insertion slot that opens on the back side, and convex mounting portions protrude at several locations on the back side. This mounting part is equipped with a display board integrally molded from resin and a transparent scale plate that closes the opening of the display band guide groove, and is attached to a mounting part formed in a concave shape on the outer surface of the case of the cooker. The outer surface of the surrounding case and the display surface are made substantially flush with each other, and the display board and scale plate are housed with their entire circumferences separated from the peripheral side of the mounting portion, and the display board is mounted. is brought into contact with the rear end surface of the mounting section, an air flow path is provided between the rear end surface and the back surface of the display board, and the display board is mounted via a screw screwed into the mounting section. It is characterized in that it is installed in the above-mentioned installation part. Therefore, the heat conduction from the case to the display board is extremely small, and the air flowing through the air flow path formed between the mounting part of the case and the display mechanism mounted thereon can be used to cool the mounting part. Since it is possible to cool the display board and prevent it from softening due to heat, it is possible to eliminate the need for a heat insulating board, which was conventionally necessary, thereby reducing the number of parts and simplifying the structure. Since the mounting part is concave and the display mechanism is housed inside, the display surface and the case are flush with each other, and the several mounting parts and air flow passages are not exposed to the outside, making it possible to improve the appearance. The effects are great, such as improving performance.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional toaster oven, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a cross-sectional view of Fig. 1, and Fig. 4 is a timer display mechanism of an embodiment of the perforation. Figure 5 is a front view of the display board, Figure 6 is a side view of the display board, and Figure 7 is an exploded view of the display board.
8 is a vertical sectional view of a timer display mechanism according to an embodiment of the present invention, and FIG. 9 is a horizontal sectional view thereof. 1...Case, 3A...Timer display band, 6...
Display board, 6A... Display band guide groove, 6C... Timer display band insertion slot, 6I... Mounting section, 7... Transparent scale plate, 10... Mounting section, 10a... Circumferential side, 1
0b...Back end surface, 11...Screw.

Claims (1)

[Scope of utility model registration request] A thin strip-shaped timer display band that is flexible and gradually wraps around the timer part as the timer operates, and a display band guide groove that opens toward the display surface side. The display board is integrally molded with synthetic resin and has a timer display band insertion slot that opens at the bottom, and also has convex mounting parts protruding at several places on the back side, and the display band guide groove. A transparent scale plate that closes the opening is provided on the mounting portion formed in a concave shape on the outer surface of the case of the cooker, and the outer surface of the case around the mounting portion and the display surface are substantially flush with each other; The display board and scale plate are housed with their entire circumferences separated from the circumferential side of the mounting part, and the mounting part of the display board is brought into contact with the rear end face of the mounting part, and the rear end face A timer display mechanism for a cooker, characterized in that an air flow path is provided between the display board and the back surface of the display board, and the display board is mounted in the mounting part via a screw screwed into the mounting part. .