JP3776359B2 - Rice cooker lid reinforcement structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid reinforcing structure for a rice cooker (including a rice cooker).
[0002]
[Prior art]
The basic structure of the lid of the rice cooker is generally a structure in which a plastic lid ring that is a member on the inside of the lid and a plastic lid upper plate that is an outer member are combined in an up-and-down manner and integrated. Conventionally, a number of reinforcing ribs are provided on the lid ring to maintain the required strength. Further, in the pressure rice cooker, since a further strength is required, a configuration in which a metal reinforcing member is fixed to the upper surface of the lid ring and the reinforcing member and the lid ring are covered by the lid upper plate is adopted. (For example, refer to JP 2001-353066 A).
[0003]
The above-mentioned reinforcing ribs of the lid ring are a relatively large number of reinforcing walls provided in the front-rear direction that perform the main reinforcing action along the left and right sides, and between the outer sides of both reinforcing walls and the side of the lid ring. And vertical and horizontal ribs. The metal reinforcing member is composed of left and right side walls fitted along the inside of the left and right reinforcing walls and a connecting portion connecting the bottoms of the side walls, and forms an upward U-shape. The lid ring and the reinforcing member are combined and integrated with a required number of screws. In addition, in order to dodge a steam hole set etc. in the part of said connection part, an appropriate hole is provided.
[0004]
Furthermore, in order to meet the demand for rice cookers that have further increased the rice cooking pressure, considering the fact that the strength is still insufficient even if the above reinforcing structure is adopted, A structure is adopted in which an auxiliary member made of a metal plate is stretched over the auxiliary member and the auxiliary member is fixed to the reinforcing member body with screws.
[0005]
[Problems to be solved by the invention]
As described above, in order to cope with an increase in rice cooking pressure, the lid of the rice cooker is in a situation where further strength is required, but on the other hand, cost reduction and weight reduction of the product are also demanded.
[0006]
From this viewpoint, looking at the above-described conventional structure, the means for fixing the auxiliary member between the side walls of the reinforcing member body is a simple method, but the auxiliary member is a metal plate and lacks strength, In order to reinforce itself, it is necessary to perform a reinforcing process such as providing a bent portion on the side or forming a bead, and a screw for fixing this to the reinforcing member body is required. For this reason, there is a problem that the manufacturing cost of the auxiliary member is high, the number of screws is increased, and an operation for fastening the screws is required, and there is room for improvement.
[0007]
Therefore, the present invention is based on the same idea as described above in that the auxiliary member is used to reinforce the reinforcing member main body, and by simplifying the configuration and mounting structure of the auxiliary member, the cost can be reduced. It is another object of the present invention to provide a reinforcing structure that does not require mounting parts.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides parallel reinforcing walls at a required interval at two locations on the upper surface of the lid ring, and a metal reinforcing member is fitted and fixed inside the both reinforcing walls. In the lid reinforcing structure of the rice cooker in which the lid plate covering the lid ring and the reinforcing member is fixed to the lid ring, a groove is provided between the two reinforcing walls on the top surface of the lid ring. A configuration was adopted in which the metal reinforcing member was covered on the upper surface of the fitted metal reinforcing pin, and the reinforcing pin was sandwiched and fixed.
[0009]
According to the above configuration, the auxiliary member corresponding to the above-mentioned auxiliary member is a metal reinforcing pin, but the reinforcing pin is made of a single metal wire, and is a component having a very simple structure. In addition, since the holding is sandwiched and fixed between the groove provided in the lid ring and the reinforcing member, a part for fixing the reinforcing pin is unnecessary. The reinforcing effect in this case is exhibited by the groove provided in the reinforcing member and the reinforcing pin fitted and integrated therein.
[0010]
In addition to the above configuration, it is possible to employ a configuration in which through holes communicating with both end portions of the groove are provided in the lower portions of the both reinforcing walls, and both end portions of the reinforcing pin are inserted into the through holes. According to this configuration, since the reinforcing pins are provided across the reinforcing walls on both sides of the lid ring, the reinforcing effect is further increased.
[0011]
Further, the reinforcing member may have a configuration including both side walls along the inner surface of the reinforcing wall of the lid ring and a connecting plate for connecting the lower ends of the side walls. Such a configuration of the reinforcing member itself is known in the above-described conventional example, but a new reinforcing structure is configured by a combination structure with a reinforcing pin.
[0012]
In addition, as another means for solving the above-mentioned problem, a parallel reinforcing wall is provided at two positions on the upper surface of the lid ring with a required interval, and a metal reinforcing member is fitted and fixed inside the reinforcing walls. In the lid reinforcing structure of the rice cooker in which the lid plate covering the lid ring and the reinforcing member is fixed to the lid ring, a groove extending between the two reinforcing walls is provided on the lower surface of the reinforcing member, and the groove It is possible to adopt a configuration in which the fitted metal reinforcing pin is sandwiched and fixed between the groove and the lid ring. This configuration is different from the above in that a groove for fitting and integrating the reinforcing pin is provided in the reinforcing member, but the reinforcing action is achieved by a combination of the reinforcing pin and the groove as in the above case. The
[0013]
As another solution, a parallel reinforcing wall is provided at two positions on the upper surface of the lid ring with a predetermined interval, and a metal reinforcing member is fitted and fixed inside the both reinforcing walls to reinforce the lid ring. In the lid reinforcing structure of a rice cooker in which a lid upper plate covering a member is fixed to the lid ring, the reinforcing member is provided with both side walls along the inner side surface of the reinforcing wall, and the reinforcement passed between the side walls It is possible to adopt a configuration in which both end portions of the pin are held through the holes provided in the side wall and the reinforcing wall. In this case, the groove for fitting the reinforcing pin is not provided, and both ends of the reinforcing pin are supported by the holes of the reinforcing member and the cover ring, and the supporting structure of the reinforcing pin is simple.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. The embodiment shown in FIGS. 1 to 3 is a rice cooker lid. The lid includes a lid ring 1, a reinforcing member 3 fixed to the upper surface of the lid ring 1 by screws 2 (see FIG. 2), and a lid upper plate that covers the reinforcing member 3 and the lid ring 1 and is fitted to the lid ring 1. 4 is a main component. Other members include a lid heater support plate 6 attached to the lower surface of the lid ring 1 with screws 5, a hinge spring 7, a lid hook 8, a pressure adjusting device 9, and the like. A heat radiating plate detachably attached to the lower surface of the lid heater support plate 6 is not shown.
[0015]
As shown in FIGS. 2 and 3, the lid ring 1 is provided with reinforcing walls 11, 11 in the front-rear direction at two locations along the left and right sides on the upper surface. Between the reinforcing walls 11, 11 on both sides, a steam set mounting portion 12, a pressure adjusting device 9 mounting portion 13, and the like are provided. In addition, a large number of fine reinforcing ribs 14 are provided in the front-rear and left-right directions between each reinforcing wall 11 and the side of the lid ring 1. A hinge mounting portion 15 is provided at the rear end portion of the lid ring 1.
[0016]
The reinforcing member 3 is a member made of metal such as iron or stainless steel having a required strength, and both side walls 16, 16 extending substantially over the entire length in the front-rear direction along the inner side surfaces of the reinforcing walls 11, 11. The connecting plate 17 connects the lower ends of the side walls 16 and 16. In other words, both side walls 16 and 16 are formed by bending both sides of the connecting plate 17 upward. A deformed hole 18 is provided in the central portion of the connecting plate 17 so that the mounting portions 12 and 13 can be displaced and fitted to the outside of these portions. The shape of the reinforcing member 3 viewed from the front-rear direction is substantially an upward U-shape.
[0017]
Bending portions 19 bent outward are provided at the upper ends of both side walls of the reinforcing member 3, and the bending portions 19 are applied to both the reinforcing walls 11, 11 of the lid ring 1 and covered with the screws 2. It is fixed to the ring 1.
[0018]
As shown in FIG. 3, the reinforcing pins 21 and 21 as auxiliary members of the reinforcing member 3 are attached at two positions before and after the mounting portions 12 and 13 of the lid ring 1. Each reinforcing pin 21 is made of metal such as iron or stainless steel, and grooves 22 and 22 (see FIG. 4) for fitting the reinforcing pin 21 are provided on the upper surface of the lid ring 1 on both sides of the reinforcing walls 11 and 11. It is provided in the left-right direction. Both ends of each groove 22 communicate with a hole 23 provided at the lower end of the reinforcing wall 11. The reinforcing pin 21 is fitted into the groove 22, and both end portions thereof penetrate the hole 23.
[0019]
One or a plurality of the reinforcing pins 21 are provided on either the front or rear side depending on the required strength. Further, the reinforcing pin 21 does not necessarily have to pass through the hole 23, and may be merely fitted into the groove 22, but in this case, the hole 23 is omitted.
[0020]
Conversely, the reinforcing pin 21 may be long enough to protrude outward from the hole 23. In that case, the reinforcing pin 21 is inserted through the hole 23 from the outside through the hole 23 provided in advance in the reinforcing rib 14.
[0021]
In any case, the length and thickness of the reinforcing pin 21 are determined by the required strength, and the depth of the groove 22 and the diameter of the reinforcing pin 21 are formed approximately equal.
[0022]
After attaching the reinforcing pin 21 as described above, when the reinforcing member 3 is fixed to the upper surface of the lid ring 1, the connecting plate 17 comes into contact with the upper surface of the lid ring 1, and the reinforcing pin 21 is connected to the groove 22 and the connecting plate 17. And integrated with each other (see FIG. 5A). In this way, the reinforcing pin 21 is integrated with the assembly of the lid ring 1 and the reinforcing member 3, whereby the strength in the length direction of the reinforcing pin 21 in the assembly is increased.
[0023]
In addition, as shown in FIG. 5B, the integrated structure of the reinforcing pin 21 is provided with a groove 22 ′ opened downward on the lower surface of the connecting plate 17 of the reinforcing member 3. The reinforcing pin 21 fitted to 22 ′ may be sandwiched between the groove 22 ′ and the upper surface of the lid ring 1. Also in this case, the length of the reinforcing pin 21 is properly used according to the required strength, such as a length that does not reach the side walls 16 and a length that penetrates the side walls 16.
[0024]
Further, as shown in FIG. 5C, a support structure in which both end portions of the reinforcing pin 21 are only passed through holes 24 provided at intermediate portions in the height direction of both side walls 16 of the reinforcing member 3 may be used. (Refer to the reinforcing pin 21 shown by a two-dot chain line in FIG. 3).
[0025]
【The invention's effect】
As described above, according to the present invention, the strength in the length direction of the reinforcing pin can be increased by integrating the reinforcing pin with the assembly of the lid ring and the reinforcing member. In addition, as an integrated structure of the reinforcing pin, a structure in which the reinforcing pin is fitted into a groove provided in either the lid ring or the reinforcing member and the reinforcing pin is sandwiched and integrated by the lid ring and the reinforcing member is adopted. By doing so, the reinforcing action can be further increased.
[0026]
Furthermore, in any of the above configurations, there is no need to use an independent part for attaching the reinforcing pin, so there is no increase in the number of parts, and the reinforcing pin itself does not need to be specially processed. Can be offered at. In addition, since the reinforcing pin can be easily inserted into a narrow portion, there is an advantage that the reinforcing pin can be attached without changing the existing structure or the part attachment position.
[Brief description of the drawings]
1 is a partially cutaway plan view of the same. FIG. 3 is a partially exploded perspective view of the same. FIG. 4 is a perspective sectional view showing a part of the lid ring. (A) Cross-sectional view showing a part of the above (b) Partial cross-sectional view of another example of the above (c) Partial cross-sectional view of another example of the same
DESCRIPTION OF SYMBOLS 1 Cover ring 2 Screw 3 Reinforcement member 4 Cover top plate 5 Screw 6 Cover heater support plate 7 Hinge spring 8 Cover hook 9 Pressure regulator 11 Reinforcement wall 12 Mounting part 13 Mounting part 14 Reinforcement rib 15 Hinge attachment part 16 Side wall 17 Connecting plate 18 hole 19 bent part 21 reinforcing pin 22, 22 'groove 23 hole 24 hole

Claims (5)

A parallel reinforcing wall is provided at two positions on the upper surface of the lid ring, and a metal reinforcing member is fitted and fixed inside the reinforcing walls, and a lid upper plate covering the lid ring and the reinforcing member is provided. In the lid reinforcement structure of the rice cooker fixed to the lid ring, a groove extending between the two reinforcing walls is provided on the upper surface of the lid ring, and the metal reinforcing pin is fitted on the groove and is made of the metal on the upper surface. A lid reinforcing structure for a rice cooker, wherein a reinforcing member is placed and the reinforcing pin is sandwiched and fixed. 2. The rice-cooker lid reinforcement according to claim 1, wherein a through-hole communicating with both ends of the groove is provided in the lower part of both the reinforcing walls, and both ends of the reinforcing pin are inserted into the through-hole. Construction. The lid of a rice cooker according to claim 1 or 2, wherein the reinforcing member has both side walls along the inner surface of the reinforcing wall of the lid ring and a connecting plate for connecting lower ends of the side walls. Reinforced structure. A parallel reinforcing wall is provided at two positions on the upper surface of the lid ring, and a metal reinforcing member is fitted and fixed inside the reinforcing walls, and a lid upper plate covering the lid ring and the reinforcing member is provided. In the lid reinforcing structure of the rice cooker fixed to the lid ring, a groove extending between the two reinforcing walls is provided on the lower surface of the reinforcing member, and the metal reinforcing pin fitted in the groove is connected to the groove and the lid ring. A rice cooker lid reinforcing structure characterized by being sandwiched and fixed between the two. A parallel reinforcing wall is provided at two positions on the upper surface of the lid ring, and a metal reinforcing member is fitted and fixed inside the reinforcing walls, and a lid upper plate covering the lid ring and the reinforcing member is provided. In the lid reinforcing structure of the rice cooker fixed to the lid ring, the reinforcing member is provided with both side walls along the inner side surface of the reinforcing wall, and both ends of the reinforcing pin passed between the side walls are connected to the side wall. A lid reinforcing structure for a rice cooker, which is held through a hole provided in a reinforcing wall.

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