JPH0325222A - Cooker - Google Patents

Abstract

PURPOSE:To prevent breakage of a transmission body by a method wherein a second coupling part forms an arcuate surface so that it can be inserted through an opening without being blocked by the peripheral edge of the opening when the transmission body is rotated centering around one peripheral edge of a first coupling part. CONSTITUTION:When a transmission body 29 is rotated around one peripheral edge 30a of a first coupling part 30, since a second coupling part 31 has an arcuate surface 32, it is smoothly inserted through an opening 28 without making contact with one peripheral edge 28a of the opening. A drive shaft 26 is then coupled to the second coupling part 31. In this case, even when the transmission body 29 is lifted upward, a block body 33 makes contact with other peripheral edge 28b of the opening 28, and the second coupling part 31 can not be pulled off from the opening 28. This constitution transmits a drive force to a turn table 25 through the transmission body 29, and makes the transmission body 29 difficult to break.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a cooking appliance with a turntable.

(b) Conventional technology A cooker with a conventional turntable was published in 1983-3.
As shown in Japanese Patent No. 3360, etc., and will be explained with reference to FIG. 7, the turntable 51 is rotated by a driving force transmitted from a rotational drive @ 54 of a motor 53 located at the outer lower part of the heating chamber 32 via a transmission body 55. do. Such a conventional body has a first connecting portion 56 that connects to the turntable 51 and a bottom wall 5 of the heating chamber.
7, the second connecting portion 5 passes through an opening 58 formed at a location facing the elbow of the L drive shaft 54 and is coupled to the drive shaft 54.
It consists of 9. Further, the second coupling part 59 has a blocking means 60 that comes into contact with the periphery of the opening 58 so that the second coupling part 59 does not come out of the opening 58 when the transmission body 55 is lifted upward after the completion of the penetration.

To explain the procedure for attaching the transmission body 55, first, as shown in FIG.
is passed through the opening 58 together with the blocking means 60. Then, as shown in FIG. 8b, the transmission body 35 is slid laterally to position the blocking stage 60 under the periphery of the opening 58.

After that, as shown in FIG. 8C, the drive shaft 54 and the second coupling portion 59 are coupled. This completes the attachment of the transmission body 55.

In such a bottom structure, it is necessary to remove a part of the second coupling part 59 and provide a stepped part 61 in order to ensure a sliding distance of the transmission body 55. However, when the stepped portion 6l is provided in this way, the second joint portion 59 is
becomes partially thin at the $i end, and the transmission body 33 is easily damaged ν
; There is a drawback.

(c) Problems to be Solved by the Invention The present invention aims to suppress damage to a single body that transmits driving force to a turntable.

(2) Means for Solving the Problems The present invention provides a heating chamber, a turntable disposed within the heating chamber for rotating the food, a rotary drive shaft located at the outer bottom of the heating chamber, and a heating chamber for heating the food. comprising an opening formed in a bottom wall of the chamber at a location opposite to the drive shaft, a first joint portion that connects to the turntable, and a second joint portion that passes through the opening and connects to the drive shaft; and a transmitting body for transmitting driving force to the turntable, wherein the second coupling part prevents the transmitting body from rotating around one circumference of the first coupling part by the circumferential edge of the opening. The transmitter has an arcuate surface so as to be able to pass through the opening without being removed, and when the transmitting body is lifted upward upon completion of such penetration, it hits the periphery of the opening and the second coupling portion is prevented from coming out of the opening. It is characterized by having a blocking means for blocking.

(E) Effect When the transmitting body is rotated around one circumference of the first joint, the second joint smoothly passes through the opening because it has the arcuate surface. Even if the transmission body is lifted upward upon completion of such penetration, the blocking means hits the periphery of the opening, and the second coupling portion does not come out of the opening.

The transmitting body is attached in this way, and the driving force is transmitted to the turntable by the transmitting body.

Therefore, the second coupling part does not require a stepped part as in the conventional case, and has an arcuate upper surface instead, and the second coupling part is not extremely thin compared to the conventional one, and the transmission body is not damaged. Hateful.

(f) Embodiment FIG. 1 shows the overall structure of a microwave oven according to an embodiment of the present invention in an exploded manner. 1 is a main body plate that is bent in the shape of the letter L, 2 is a front plate that is attached to the front side of the main body plate and has front openings 3 and 4, and 5 is a rear plate that is attached to the rear side of the main body plate L. A plate 6 is a bottom plate that closes the lower right side of the main body plate 1, and a heating chamber 7 and an electrical equipment chamber 8 are defined by each of these plates. In front of the heating chamber 7 and the electrical equipment chamber 8 are the front openings 3 and 4, respectively.
is located. In the electrical equipment room 8, 9 is a madanetron that supplies microwaves into the heating chamber 7; jLbi1
1 is a high-voltage transformer and a high-voltage capacitor for supplying high voltage to the magnetron, respectively; 12!4 the electrical equipment room 8;
A control panel is mounted so as to close the front opening 4 on the side, and settings such as heating time are made on the panel. 13 is a door that opens and closes the front opening 3 of the seven heating chambers.

The door 13 is rotatably supported with respect to the front plate 2 at the upper left side and lower left side. The supporting structure of the left side part 1E will be explained with reference to FIGS. 2 to 4 (in addition,
The structure of the lower left side is the same as the structure of the upper left side, so the explanation is omitted), 14 is a first hinge that is protruded and fixed to the upper left side of the front @ 2 and whose tip reaches inside the door 13, and 15 is a first hinge that extends into the door 13. At the upper left side of the door, screw 17 into the door bracket 16.
, 18, and the second hinge is rotatably supported by the main tip portion of the first hinge 14 via a projection l9, thereby rotatably supporting the door l3.

The second hinge 15 has a bent piece 20 for attaching the screw 1718, but also has a bent piece 21. The tip of another screw 22, which is adjacent to the screw l8 and screwed into the door bolt jA16, comes into contact with this bent piece 21. The heads of these screws 18 and 22 are located in the recesses 23 pushed into the door structure or metal fitting l6, and the heads of the screws 17 are located in the other recesses 24 pushed in. Each screw l7, 18, 22 is connected to the front l2 and door l when the door is closed.
It is operated when adjusting the distance from 3. That is, screw 17
, l8, and then tighten or loosen the screws 22 by the necessary amount (t), and then tighten the screws 17 and l8 again, the relative positional relationship of the protrusion 19 within the door 13 changes,
As a result, the above-mentioned interval is adjusted.

FIG. 5 shows the structure near the bottom wall 7a of the heating chamber 7. 2
5 is a turntable arranged in the heating chamber 7 for rotating the food; 26 is the rotational drive shaft of the motor 27 located under the bottom wall 7a of the heating chamber 7; and 28 is the heating chamber bottom 51.
A purling entrance 29 formed at a location facing the drive shaft 26 in 7a passes through the first coupling portion 30 that couples with the E turntable 25 and the opening 28, and is coupled to the drive shaft 26! It is a transmitting body consisting of an II2 coupling portion 31 and transmitting driving force to the turntable 25.

The second connecting portion 3l is not stopped by the one peripheral edge 28a of the opening 28 when the first different body 29 is rotated around one peripheral edge 30a of the first connecting portion 30, and the L opening 28
It has an arcuate shape 32 so that it can pass through. That is, the arcuate surface 32 always maintains a small distance from the opening periphery 28a when the transmission body 29 rotates. Further, the second connecting portion 31 has a blocking body 33 that prevents the transmission body 29 from hitting the other peripheral edge 28b of the opening 28 when the transmission body 29 is lifted upward upon completion of such penetration.

The above transmission? The installation procedure for $29 will be explained with reference to FIG. 6. First, the transmitting body 29 is rotated around one peripheral edge 30a of the first coupling portion 30. At this time, the second
Since the vi joint portion 31 has the arcuate surface 32, it passes smoothly through the opening 28 without hitting the opening periphery 28a. Thereafter, the drive shaft 26 and the II2 coupling portion 3l are coupled. At this time, even if the transmission body 29 is lifted upward, the blocking body 33 hits the other peripheral edge 28b of the opening 28, and the second coupling portion 3l does not come out from the opening 28. The transmission body 29 is attached in this way, and the driving force is transmitted to the turntable 25 by the transmission body 29.

Therefore, the second joint portion 31 does not require a stepped portion as in the conventional case, and instead has an arcuate surface 32, has a certain thickness along the arcuate surface 32, and has a thickness compared to the conventional method. Second joint part 3
1 is not extremely thin, and the transmission body 29 is not easily damaged.

(G) Effects of the Invention According to the present invention, it is possible to easily prevent damage to the transmission body that transmits the driving force to the turntable.

[Brief explanation of drawings]

1 to 6 relate to a cooking device according to an embodiment of the present invention.
The figure is an exploded perspective view showing the overall groove, and Figures 2, 3, and 4 are a front view, a plan sectional view, and a perspective view of the main parts of the door, respectively.
5 and 6 are a cross-sectional view and an exploded cross-sectional view of the vicinity of the transmitting body, respectively, and furthermore, FIG. Both b and c are sectional views showing the procedure for attaching the transmitting body. 7;...Heating room, 25...Yuichiji table, 26...
・Rotation drive shaft, 28...Opening, 29..."Undifferentiated body,"
30... first coupling part, 31... second coupling part, 32.
... Arc-shaped surface, 33... Blocker.

Claims (1)

[Claims] (1) a heating chamber, a turntable disposed within the heating chamber for rotating the food, a rotational drive shaft located at the outer bottom of the heating chamber, and a rotary drive shaft located on the bottom wall of the heating chamber facing the drive shaft; a transmission body that transmits a driving force to the turntable, the transmission body comprising an opening formed at the location, a first coupling part that couples with the turntable, and a second coupling part that passes through the opening and couples with the drive shaft; In a cooker equipped with
The second coupling part has an arcuate surface so that when the transmission body is rotated around one circumference of the first coupling part, it can pass through the opening without being blocked by the circumference of the opening,
The cooking appliance is further characterized in that it has a blocking means that hits the periphery of the opening when the transmitting body is lifted upward at the completion of the penetration, and prevents the second coupling part from coming out of the opening.