JPH04164411A - Rice cooker - Google Patents

Abstract

PURPOSE:To provide a rice cooker constructed to be easily assembled, a cover of which can be opened automatically or by slight operation by installing a hook plate where a spring is held on a hinge bearer from the outside of a main body, and then installing a hinge cover for covering the hinge bearer and the hook plate from the outside of the main body. CONSTITUTION:Hinge receiving pieces 15, 15 are formed to be integral with one end of a handle main body 14, and disposed outside, with a hinge bearer 7 formed on one side of an upper frame 3 sandwiched therebetween. A hinge shaft 16 is inserted from the side of the piece to pivot the whole cover 9 on a main body 1 in such a manner as to be turned and opened and closed. A hook plate 17 for holding a tension coiled spring 28 for applying the opening force to the cover 9 is disposed in the hinge bearer 7, and a hinge cover 18 is fixed with the hook plate 17 on an upper frame 3 in such a manner as to cover the hinge bearer 7 and the hook plate 17 by a screw 19. Thus, when the cover 9 is closed by a cover lock device 20, a lock lever 22 is pressed to detach a click portion 26 from a click hook portion to release the closing state of the cover 9, whereby the cover 9 is turned on a hinge shaft 16 by the opening force of a spring 28 to be automatically opened.

Description

[Detailed description of the invention]

[0001] [Purpose of the invention] [00021

[Industrial Field of Application] The present invention relates to a rice cooker having a structure in which an opening force is applied to the lid by a spring. [0003] [0003] Conventionally, in this type of rice cooker, a heater is installed inside and a lid is pivotally mounted on the main body housing a pot heated by the heater, and the lid is opened and closed. A locking device is provided to keep the lid closed, and the lid can be opened by releasing the locking device and lifting the lid by holding the handle. In recent years, however, a torsion coil spring has been installed on the pivot portion of the lid, and one end of the spring is connected to the main body and the other end is connected to the lid, thereby applying an opening force to the lid. It has been proposed that the lid automatically opens when the lid is released from its hold, making it unnecessary to manually lift the lid, or reducing the amount of effort required to lift the lid. [0004]

[Problem to be solved by the invention]

In the case of the above-mentioned device, it is sufficient in terms of convenience, but in terms of structure, it uses torsion coil springs that concentrate intense stress from both ends to the area where the lid and main body meet. Therefore, each part of the lid and the main body must be specially reinforced to withstand it, and this requires a lot of effort in designing and manufacturing, which leads to problems with the high price of the product. The torsion coil spring itself had a relatively short lifespan and was often unreliable when used for a long period of time [0005] The present invention was made in view of the above circumstances, and therefore its purpose is to The object of the present invention is to provide a rice cooker that can provide the convenience of automatically opening the lid with a structure that is easy to design and manufacture and has high reliability. [0006] [Configuration of the invention] [0007]

[Means to solve the problem]

In order to achieve the above object, in the present invention, the lid is hollow and has a handle portion extending in the radial direction, and a tension coil spring is disposed inside the handle portion along its longitudinal direction, and one end of the spring is connected to the main body,
It is characterized in that the other end portions are respectively connected to the lid to apply an opening force to the lid. [0008]

[Effect]

According to the above means, an opening force can be applied to the lid by a tension coil spring instead of a conventional torsion coil spring. This tension coil spring does not impose the intense stress on the lid and body that conventional torsion coil springs do, and also has a long lifespan. Furthermore, by arranging this tension coil spring within the hollow handle portion of the lid along its longitudinal direction, so-called dead space can be used effectively. [0009]

【Example】

An embodiment of the present invention will be described below with reference to FIGS. 1 and 4. First, in FIG. 1, 1 is a main body, and inside thereof, as shown in FIG. A heater (not shown) is provided to heat the pot 2, which is accommodated together with the inner lid 3 placed in the opening, and a heater (not shown) is provided at the opening edge on the upper surface of the main body 1, as shown on the right side in the figure. The hinge receiver has part 4 on one side,
A frame 6 having a hook portion 5 is installed on the other side on the left side in the figure. On the other hand, 7 is a lid, which in detail has an outer lid 8 and an inner lid 9, and a heat insulating material 10 etc. is disposed between the two lids. In addition, on the outer surface, a main body part 12 of a handle part 11 is integrally formed on the outer lid 8, and the main body part 12 of the handle part 11 extends in the radial direction from one place on the outer circumference to one place on the opposite side in the radial direction. A hinge piece 13 (see FIG. 4) is also integrally formed at one end of the handle main body 12, and the hinge piece 13 is positioned within the hinge receiver 4 and then inserted between the parts. By passing the hinge shaft 14 through the lid 7 from the side, the lid 7 as a whole is pivoted to the main body 1 so as to be openable and closable. 15 is a plate for a tension coil spring which will be described later, and 16 is a hinge cover.
The hinge receiver covers part 4, etc., and the above hook is attached to the frame 6 on plate 1.
5 and is attached by screws 17. On the other hand, 1
Reference numeral 8 denotes a lid locking device provided on the opposite side of the hinge portion of the lid 7, which also has a base member 19 and a lock lever 20, of which the base member 19 is connected to the outside. It is placed on the other end of the lid 8 and fixed with a screw 21 passed from below the inner lid 9, and then the middle part of the lock lever 20 is connected to the base member 19 by the shaft 22.
A compression coil spring 23 is interposed between the lock lever 20 and the base member 19, and the spring force causes the claw portion 24 at the tip of the lock lever 20 to be engaged with the claw. is engaged with the portion 5 to lock the lid 7 in the closed state. In addition to the main body 12, the handle 11 has a cover 25 that closes the open part on the upper surface of the handle 11, and has a hollow shape as a whole as shown in FIG. Before the cover 25 is attached, a tension coil spring 26 is arranged along its elongated direction, and one end of the spring 26 is attached to the hook plate 15.
It is connected to the main body 1 via the Flr&f plate 15 by being hooked to the body 1, and connected to the lid 7 via the base member 19 by hooking the other end to the base member 19 of the lid locking device 18. This configuration provides an opening force to the lid 7. [00103] Therefore, in the case of this embodiment configured as described above, when the lid 7 is held in the closed state by the lid locking device 18, the lock lever 20 is pressed and the claw portion 24 is hooked. When the lid 7 is released from the closed state by removing it from the section 5, the lid 7 rotates around the hinge shaft 14 by the opening force applied from the tension coil spring 26 and opens automatically. This eliminates the need for a manual lifting operation of the lid 7 or reduces the operating force, making it very convenient. While similar conveniences can be obtained, this embodiment uses a tension coil spring 26 in place of the conventionally considered torsion coil spring. According to the above, the torsion coil spring does not apply the intense stress to the lid 7 and the main body 1 from both ends of the spring, unlike the conventional lid and main body. This eliminates the need for reinforcement, which simplifies the design and manufacture of the product, and prevents the product price from rising. In addition, the tension coil spring 26
The tension coil spring 26 has a long lifespan unlike a torsion coil spring, so it can be highly reliable over a long period of time. Because of this arrangement, so-called dead space can be used effectively, and the appearance etc. do not change, making it possible to further contribute to maintaining low product prices. [0011] In particular, in the case of the above embodiment, the tension coil spring 2
The other end of the lid locking device 18 is hooked onto the base member 19 of the lid locking device 18 so as to be connected to the lid 7 via the base member 19, so the base member 19 can be used for the connection. Since no special parts are required, it is possible to further contribute to keeping product prices low. [0012] FIG. 5 shows a different embodiment of the present invention, in which one end of the tension coil spring 26 is connected to the above-mentioned hook plate 15 via a linear member 27 such as a wire or string. Furthermore, it is designed to be connected to the main body 1, but by doing so, even when the shape of the handle part 11 becomes complicated or the inside becomes narrow, it is possible to connect one end of the handle part 11 without any problem. It can be convenient. [0013] In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate changes within the scope of the gist. [0014]

【Effect of the invention】

As is clear from the above, the present invention includes a lid having a hollow handle portion extending in the radial direction on the main body so as to be openable and closable, and
A rice cooker equipped with a lid locking device for holding the lid in a closed state, wherein a tension coil spring is disposed within the handle of the lid along the elongated direction of the lid, and one end of the spring is attached to the main body. , the other end is connected to the lid to apply an opening force to the lid,
This provides the convenience of automatically opening the lid with a structure that is easy to design and manufacture and has high reliability, and also has excellent effects such as effective use of dead space. .

[Brief explanation of drawings]

[Figure 1] Overall front view showing one embodiment of the present invention

[Figure 2] Enlarged front view of main parts

[Figure 3] A longitudinal cross-sectional side view of the handle section taken along line III-III in Fig. 2

[
Figure 4: Overall perspective view with main parts exploded

[Figure 5] A perspective view of a lid showing different embodiments of the present invention

[Explanation of symbols]

1 is the main body, 7 is the lid, 11 is the handle, 14 is the hinge shaft, 1
8 is a lid locking device, 9 is a base member, 26 is a tension coil spring, and 27 is a linear member.

【Document name】

drawing

[Figure 1]

[Figure 2]

[Figure 3]

[Figure 4]

[Figure 5]

【Document name】 【Filing date】 【address】 [Display of incident]

【Filing date】

【Reference number】 [Name of the invention] [Person making the correction] [Relationship with the incident] 【Identification number】 [Name or title] [Representative] [Agent] 【Identification number】 【patent attorney】 [Name or title]

[Procedural amendment 1]

[Name of document to be corrected] [Correction target item name] [Correction method] [Contents of correction]

[Procedural amendment 2]

[Name of document to be corrected] [Correction target item name] [Correction method] [Contents of correction]

[Procedural amendment 3]

[Name of document to be corrected] [Correction target item name]

Procedural amendment January 11, 1991

Claims (1)

[Scope of Claims] 1. A lid having a hollow handle extending in the radial direction is pivotally mounted on the main body so as to be openable and closable, and a lid locking device for holding the lid in a closed state is provided. A tension coil spring is disposed inside the handle of the lid along its longitudinal direction, and one end of the spring is connected to the main body and the other end is connected to the lid so as to apply an opening force to the lid. This rice cooker is characterized by: 2. The rice cooker according to claim 1, wherein one end of the tension coil spring is connected to the main body via a linear member. 3. The rice cooker according to claim 1, wherein the other end of the tension coil spring is connected to the lid via the base member of the locking device.