JPH0451718Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a lid locking mechanism for a cooking appliance such as a rice cooker.

(Prior Art) Conventionally, as a lid lock structure for a cooking appliance, for example, a rice cooker, as described in Japanese Utility Model Application Publication No. 57-5110, a handle base is formed on the lid at the shoulder of the exterior body of the rice cooker. are connected by a hinge, an F-shaped foot lever is rotatably attached to a support shaft provided at the handle base in the handle base on the opposite side of the hinge portion of the lid, and the foot lever is mounted on a spring attached to the support shaft. While biasing one end side toward the handle cover side, a locking claw is provided on the side wall of the shoulder body of the exterior body, and the locking hole provided at the other end of the foot lever is engaged with the locking claw by the action of the spring. Those that are made to match are in practical use.

(Problems to be Solved by the Invention) However, with this structure, the handle base is formed outside the side wall surface of the exterior body, and the locking hole is provided with a cover that surrounds the locking portion with the locking pawl. Since it must be attached from the outside, there is a problem in that the external size becomes large. Moreover, when assembling, the foot lever and spring must be installed at the base of the handle of the lid, and the exterior body and shoulder body must be screwed together at the locking pawl forming part and the hinge joint. Since the cover cannot be attached until after the screws have been screwed, the assembly process becomes complicated.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a hook lever having an operation button on one end side and a hook portion on the other end side, which is rotatably supported in a hook housing. At the same time, a spring that contacts one end side of the hook lever and urges the operation button in a direction to protrude from the window of the hook housing is pivotally supported on the hook housing, and the hook housing is formed on the top plate of the lid of the cooker. At the same time, a locking pawl is formed on the side wall of the annular groove formed at the upper end of the cooker body, so that when the lid is closed, the hook part of the lid lever is fixed to the inside of the lid. It is adapted to be locked by a locking pawl in the annular groove.

(Function) When the lid is closed, the hook part provided on one end of the lid lever engages with the locking pawl provided on the cooker body to lock the lid, and the spring locks the lid, which is rotatably attached. The hook portion is biased toward the locking pawl to maintain the locked state. Further, when the operation button provided on the other end of the hook lever is pressed, the hook portion is released from the locking pawl and the lock is released.

(Example) Hereinafter, an example in which the lid locking mechanism according to the present invention is applied to a rice cooker will be described with reference to the attached drawings.

In the figure, 1 is an exterior body body, 2 is a shoulder body, and 3 is a lid, which includes a lid body 12, a lid ring 13, and a heat sink 1.
It consists of 4. 4 is the hook unit,
The hook unit 4 is composed of a hook lever 5, a spring 6, and a housing 7.

As shown in FIG. 3, the housing 7 consists of an upper housing 7a, a lower housing 7b having a spring support shaft 10, and a hook fitting 7c. T-shaped arm portion 26 that is locked to protrusions 25a and 25b provided on the side wall portion
and a bearing part 2 that holds the foot lever support shaft 9.
7 is formed. When assembling, the spring 6 is attached to the support shaft 10 of the lower housing 7b, and the operating button 8 is screwed to one end of the foot lever 5, and the operating button 8 is pushed outward from the window 11 formed in the upper housing 7a. After attaching the hook lever 5 to the upper housing 7a so as to protrude, the upper housing 7a is fitted to the lower housing 7b, and the hook fittings 7c are attached to the lower parts of the upper housing 7a.
is attached, the foot lever 5 is placed on the support shaft 9 and held rotatably, and the arm portion 26 is attached to the protrusion 2.
5a and 25b. At this time, since one end of the spring 6 is supported and compressed by the hook fitting 7c, the other end is supported by the hook lever 5.
1 and biases the operation button 8 in a direction that causes it to protrude from the window of the hook housing, that is, in a counterclockwise direction in FIG.

After the body of the hook unit 4 is fitted into the through hole 12a formed in the lid body 12 and the lid ring 13 is fitted to the lid body 12, the bottom of the hook unit 4 is screwed in from the lid ring 13 side with the screw 15. It can be easily installed by stopping it.

The shoulder body 2 forming the upper part of the main body of the rice cooker is
It has an annular groove 16 and an annular outer container attachment groove 17 coaxial therewith on its upper end surface, and is fitted to the exterior body body 1 by an annular locking rib 18 provided on the lower end side of the shoulder body 2. A locking pawl 20 is formed on the inner side wall 19 forming the annular groove 16 at a position corresponding to the position of the hook lever 5.
It is designed to lock a. In addition, the locking claw 2
0 is provided in the center, and a through hole may be provided in the hook lever 5 as a hook portion so that these can be engaged.

In the figure, 21 is an outer container, 22 is an inner container, 23
is the body heater.

When opening the lid 3 from the closed state shown in FIG. Locking claw 20
deviate from Therefore, the lid 3 can be opened by lifting the hook unit 4 by hand and rotating the lid 3 clockwise. Conversely, when closing the lid 3, rotate the lid 3 counterclockwise and push down the hook unit side of the lid 3, the hook portion 5a of the lid 3 will come into contact with the locking pawl, and the lid 3 will rotate slightly clockwise. When the hook portion 5a passes over the locking pawl 20, the hook portion 5a rotates counterclockwise due to the action of the spring 6, and the hook portion 5a engages with the locking pawl 20, thereby locking the lid 3.

(Effects of the invention) As is clear from the above explanation, the present invention combines the hook lever, spring, operation button, etc. into a unit, and also places the hook unit inside the lid.
Since the locking pawl can be formed inside the outer diameter of the cooking device main body, the lid locking mechanism does not protrude outside the exterior body, and the rice cooking jar can be made smaller. Moreover,
Since the locking pawl is formed on the side wall of the annular groove of the shoulder body, there is no need for a lock part cover as in the conventional case, and excellent effects such as being able to simplify assembly and reduce costs can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a rice cooker showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the main parts thereof, and FIG. 3 is an exploded perspective view of the hook unit. 1...Exterior body, 2...Shoulder body, 3...Lid, 4...
Hook unit, 5... Foot lever, 5a...
Hook part, 6...Spring, 7...Housing, 8...Operation button, 9, 10...Spindle, 11
... Window, 12 ... Lid body, 13 ... Lid ring, 1
6... annular groove, 20... locking claw.

Claims (1)

[Scope of utility model registration request] A foot lever having an operation button at one end and a hook at the other end is rotatably supported in the hook housing, and comes into contact with one end of the foot lever so that the operation button protrudes from the window of the hook housing. A spring biased in the direction of A cooking device characterized in that a locking pawl is formed on a side wall of an annular groove formed at the upper end, so that when the lid is closed, the hook portion of the lid lever is locked to the locking pawl in the annular groove. Dexterous lid lock mechanism.