JP3400376B2 - Rice cooker lid hook device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid hook device for a rice cooker.

[0002]

2. Description of the Related Art In a rice cooker, a lid is biased in an opening direction to a hinge portion of a jar body, and a lid hook is provided on the lid so as to be detachably engaged with an engaging portion of the jar body.
When closing the lid, hang the lid hook on the above engaging part,
When opening the lid, an engagement releasing member such as a release button provided on the lid or the jar body is operated to release the engagement of the lid hook.

The disengagement member may be provided on the lid or the jar body. FIG. 9 (a)
Shows an example in which the disengagement member 1 is provided on the lid 2, and (b) shows an example in which the disengagement member 1 is provided on the jar body 3. Figure 9
(A) shows a state in which the lid hook 4 attached to the lid 2 is engaged with the engaging portion 5 of the jar body 3, and the leg portion of the engagement releasing member 1 faces the upper end portion of the lid hook 4. Shows. When the disengagement member 1 is pushed in as indicated by the arrow a, the hook 4
Is rocked as indicated by the chain double-dashed line, and the engagement with the engagement portion 5 is released. When the engagement is released, the lid 2 is automatically opened by the urging force of the hinge portion (see arrow b).

FIG. 9 (b) is the same as the above case in that the lid hook 4 attached to the lid 2 is engaged with the engaging portion 5 of the jar body 3, but the engagement releasing member 1 is It is provided on the jar body 3, and its legs face the lower surface of one end of the hook 4. When the disengagement member 1 is pushed in as shown by the arrow a, the leg portion kicks up the end portion of the lid hook 4, so that the lid hook 4 is swung as shown by the chain double-dashed line, and Is disengaged. When the engagement is released, the lid 2 is automatically opened by the urging force of the hinge portion as described above (see arrow b).

[0005]

In any of the above cases, the lid hook 4 is disengaged only by pushing the engagement releasing member 1 and the lid 2 is automatically opened. However, from the viewpoint of further ease of use, there are the following points to be improved.

That is, in the case of FIG. 9A, when the engagement releasing member 1 is pushed in, the lid hook 4 is lightly disengaged from the engaging portion 5, but as long as the engagement releasing member 1 is continuously pushed, Since the pushing force acts on the lid 2, there is an inconvenience that the lid 2 is not opened.

In the case of FIG. 9B, even if the engagement releasing member 1 is continuously pushed, regardless of this, the lid 2 is opened immediately when the engagement of the lid hook 4 is released. But,
Since the lid hook 4 is pressed against the engaging portion 5 by the urging force in the opening direction which acts on the lid 2, the lid hook 4 should be kept pressed against the surface of the engaging portion 5 and be removed while rubbing the surface thereof. In some cases, a situation may occur in which a catch is generated and it is difficult to come off.

Therefore, according to the present invention, when the engagement releasing member such as the release button is operated, the hook is lightly disengaged from the engaging claw, and the lid is opened immediately when the engagement is disengaged. An object is to provide a hook device.

[0009]

In order to solve the above-mentioned problems, the present invention attaches a lid to a hinge portion of a jar body by urging the lid in the opening direction, and attaches the lid to the engaging portion of the jar body. A lid hook to be engaged is rotatably attached, and an engagement releasing member is provided for urging the lid hook in a direction in which the engagement with the engaging portion is deepened to release the engagement of the lid hook. In a lid hook device for a rice cooker, the engagement releasing member is vertically movably attached to the jar body, and the engagement releasing member is provided with a release inclined surface facing obliquely downward of the jar body. The lower end of the release inclined surface of the engagement releasing member in the raised position in the lid closed state is engaged with the provided release portion from the side facing the biasing direction of the lid hook.

The lid hook has a releasing hook provided downward in the middle of a horizontal hook plate, and engaging hooks on both sides of the releasing hook, and the releasing hook is provided with the releasing hook. A part may be provided.

The releasing portion may be formed by a bent portion provided at a lower end of the releasing hook.

The releasing portion may be formed by a hole provided at the lower end of the releasing hook.

The disengagement member has an operating portion and a rising portion that rises from the operating portion and protrudes onto the upper surface of the jar body, and the release inclined surface is provided at the upper end of the rising portion. can do.

The engagement releasing member may be biased upward and its operating portion may face the operating recess of the jar body.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 and 2 show a rice cooker having a jar body 11 accommodating a pan 10 and a lid 13 attached to a hinge portion 12 (see FIG. 2) of the jar body 11 so as to be openable and closable. The lid 13 is biased in the opening direction by a hinge torsion coil spring 14 attached to the hinge portion 12.

A lid hook 15 is rotatably attached to the lid 13 by a fulcrum shaft 16 in the horizontal direction. Further, the jar body 11 is provided with an engagement portion 17 and an engagement release member 18 (see FIGS. 5A and 5B).

As shown in FIG. 3, the lid hook 15 has a releasing hook portion 21 provided downward at a central portion of a horizontal hook plate 19 for engaging downwardly at both ends of the hook plate 19. A hook portion 22 is provided. The fulcrum shaft 1 is attached to the bearing pieces 23 provided on the engaging hook portions 22 on both sides.
6 is inserted, and a hook torsion coil spring 24 is attached to one end of the fulcrum shaft 16. One end of the hook torsion coil spring 24 is engaged with the one engaging hook portion 22 to apply an inward biasing force to the entire lid hook 15.

The releasing hook portion 21 has a bending portion 25 which is bent outward in the middle thereof, and a releasing portion which is bent inward (at the biasing direction of the hook torsion coil spring 24) at a right angle at its lower end. 20 are provided. Also, hook claws 26 bent in the same direction are provided at the lower ends of the engaging hook portions 22.

The engaging portion 17 provided on the jar body 11 is provided so as to correspond to these hook claws 26, and when the hook claw 26 engages with the engaging portion 17 (see FIG. 4B). , The lid 13 is closed and the opening is blocked.

As shown in FIG. 4 (a), the disengagement member 18 is bent into an L shape, a rising portion 28 is formed on a horizontal operating portion 27, and the jar body 11 is provided at the upper end of the rising portion 28. The release inclined surface 29 is formed obliquely downward and forward.

The disengagement member 18 is the jar body 1
The operation portion 27 is vertically movably housed in the operation recess 31 provided in the upper front part of the jar 1, and the rising portion 28 passes through the gap provided behind the operation recess 31 and the jar body 11 Protruding upward from the upper surface of. A biasing spring 33 is attached to the back surface of the rising portion 28,
The disengagement member 18 is biased upward. Disengagement member 1
The operation portion 27 of No. 8 is engaged with the lower end of the rear wall 34 of the operation recess 31 to prevent further upward movement.

The disengagement member 18 has the rear wall 3 as described above.
At the upper limit position where the lower end of the jar 4 is engaged, the release inclined surface 29 projects to the upper surface of the jar body 11 (see FIG. 4 (a)).
The releasing portion 20 of the releasing hook 21 is located at the lower end of the releasing inclined surface 29. Further, in this state, the hook claws 26 of the engaging hook portions 22 engage with the engaging portions 17 (see FIG. 4B).

The hook device of the rice cooker of the embodiment is as described above, and the lid 13 shown in FIGS. 4 (a) and 4 (b) is used.
In order to release it from the closed state, the operation portion 27 of the engagement releasing member 18 facing the operation recess 31 is moved by the arrow a.
Push down as shown (see FIG. 6). Disengagement member 1
When 8 is pushed down, the release inclined surface 29 causes the release portion 2 to move.
The tip of 0 is pushed outward (see the dashed-dotted line arrow b), and the entire lid hook 15 integrated with the releasing portion 20 rotates about the fulcrum shaft 16, so that the hook claws 26 engage with the engaging portions. 1
7, and the engagement is released. When disengaged,
The lid 13 is automatically opened by the biasing force of the hinge torsion coil spring 14.

At the time of releasing the above-mentioned engagement, the lid hook 15 rotates about the fulcrum shaft 16 from the start to the end of the releasing operation, while the releasing portion 20 is at 2 in FIG. 7 (a).
As shown by the dotted chain line, the release inclined surface 29 is contacted with the lid 1
Continue to apply downward load to 3. Therefore, the lid 13 is not opened. Also, during this time, the hook claws 26 of the lid hook 15
Is the cover hook 15 as shown by the two-dot chain line in FIG.
It moves away from the engaging portion 17 with the rotation of.

That is, the lid 13 is engaged with the jar body 11 by the hook claws 26 of the lid hook 15 when the lid 13 is closed, but is not opened even when the hook claws 26 are disengaged when the lid 13 is released. The opening will be started only when 20 is disengaged from the release inclined surface 29. Therefore, when the lid 13 is opened, the rubbing that occurs between the lid hook 15 and the jar body 11 occurs only between the release portion 29 and the release inclined surface 29. The friction generated by the rubbing decreases as the inclination angle θ of the release inclined surface 29 decreases. This tilt angle θ
Is selected within a range in which the stroke of the engagement releasing member 18 does not become large, for example, about 45 °.

When the lid 13 is closed, the lid hook 15
The hook claws 26 of the above hit the inclined surface 35 (see FIG. 4B) provided on the upper surface of the engaging portion 17, and are forcedly rotated,
The original engagement state is restored.

In the above embodiment, the lid hook 15
Release part 20 provided at the lower end of the release hook part 21
Was formed by bending the lower end portion thereof inwardly, the releasing portion 20 may be formed by a square hole provided at the lower end portion of the releasing hook portion 21 as shown in FIG. Good. In this case, the disengagement member 1 is located on the inner side of the hole serving as the release portion 20, that is, on the side facing the biasing direction of the hook torsion coil spring 24 acting on the lid hook 15.
The release inclined surface 29 of No. 8 is engaged. Even with such a structure, the lid hook 15 can be rotated in the engagement releasing direction by pushing down the engagement releasing member 18 as in the case described above.

[0028]

As described above, according to the present invention, when the engagement releasing member is operated, the lid is automatically opened immediately even if the engagement releasing member is continuously pressed. Further, since the friction between the lid hook and the jar body when the lid is opened is small, the lid hook is lightly and securely opened without being caught at the engaging portion.

[Brief description of drawings]

FIG. 1 is a perspective view of a rice cooker according to an embodiment.

FIG. 2 is a sectional view of the above.

FIG. 3 is a perspective view of the lid hook of the above.

FIG. 4A is a partially enlarged sectional view of the above. (B) A partially enlarged cross-sectional view of another portion of the above.

FIG. 5 (a) is a perspective view of the jar body portion of the above. (B) Plan view of the part of (a) figure

FIG. 6 is a sectional view of the same lid when the lid is opened.

FIG. 7 (a) is a sectional view of the release portion of the above. (B) Sectional view of the hook claw portion of the above

FIG. 8A is a partial front view of another example of the lid hook. (B) Side view of the engagement state with the above-mentioned engagement releasing member

FIG. 9A is a partial cross-sectional view of a conventional example. (B) Partial sectional view of another conventional example

[Explanation of symbols]

10 pots 11 Jar body 12 Hinge part 13 lid 14 Hinge torsion coil spring 15 Lid hook 16 fulcrum axis 17 Engagement part 18 Disengagement member 19 hook plate 20 Release section 21 Release hook 22 Engagement hook 23 Bearing piece 24 hook torsion coil spring 25 Bend 26 hook claws 27 Operation part 28 Rising part 29 Release slope 31 Operation recess 33 Biasing spring 34 rear wall 35 inclined surface

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Unexamined Patent Publication No. 10-211094 (JP, A) Actual Open Sho 59-188017 (JP, U) Actual Open Sho 59-108534 (JP, U) Actual Open Sho 55- 1893 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 27/00 103

Claims (6)

(57) [Claims] 1. A lid is biased and attached to a hinge portion of a jar main body in an opening direction, a lid hook engaged with an engaging portion of the jar main body is rotatably attached to the lid, and the lid hook is attached. Is urged in the direction in which the engagement with the engagement portion becomes deeper,
A lid hook device for a rice cooker, comprising an engagement releasing member for releasing engagement of the lid hook, wherein the engagement releasing member is vertically movably attached to the jar body, and the jar body is attached to the engagement releasing member. Is provided with a release inclined surface that is directed obliquely downward, and the lower end of the release inclined surface of the engagement releasing member that is in the raised position in the lid closed state is set in the releasing direction provided in the lid hook as the biasing direction of the lid hook. A lid hook device for a rice cooker, which is engaged from opposite sides. 2. The lid hook has a release hook provided downward at an intermediate portion of a horizontal hook plate, and
The lid hook device for a rice cooker according to claim 1, further comprising engaging hooks on both sides of the releasing hook, wherein the releasing portion is provided on the releasing hook. 3. The lid hook device for a rice cooker according to claim 2, wherein the releasing portion is formed by a bent portion provided at a lower end of the releasing hook. 4. The lid hook device for a rice cooker according to claim 2, wherein the releasing portion is formed by a hole provided at a lower end of the releasing hook. 5. The disengagement member has an operating portion and a rising portion that stands up from the operating portion and projects onto the upper surface of the jar body, and the release inclined surface is provided at the upper end of the rising portion. 5. The method according to claim 1, wherein
The lid hook device of the rice cooker according to any one of 1. 6. The disengagement member is urged upward, and its operation portion faces the operation recess of the jar body, according to any one of claims 1 to 5. The lid hook device of the rice cooker described in.