JPH062611Y2 - Lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a lid opening / closing device in which a lid and a main body can be easily separated.

(Prior Art) Conventionally, as a lid opening / closing device of this type, there is one shown in FIG. In FIG. 6, 1 is a hinge shaft provided on a lid (not shown), 3 is a bearing portion projecting from the upper end of the main body 2, and 4 is an inner surface side of the bearing portion 3 into which the hinge shaft 1 is fitted. Grooves 5 are hinge levers that are vertically movable along the inner surface of the bearing portion 3 and that open and close the grooves 4 by the vertical movement. The hinge levers 5 are always urged upward by a spring (not shown) to be in the state shown in the figure. Is located in.

In such a lid opening / closing device, the hinge shaft 1 is fitted into the groove 4 by pressing the shaft 1 against the upper end of the hinge lever 5 and moving the lever 5 downward. The hinge lever 5 is manually pushed down and the groove 4 is opened.

(Problems to be solved by the invention) By the way, in the case of the lid opening / closing device, the positions of the hinge shaft 1, the hinge lever 5 and the like are invisible to the lid, and in such a situation, the hinge shaft 1 of the hinge lever 5 is not visible. When the hinge shaft 1 comes into contact with the upper end and tries to push down the lever 5, the hinge shaft 1 easily slips from the upper end of the hinge lever 5 in the direction of the arrow shown in FIG. 6, and the operability when the hinge shaft 1 is fitted is very good. It could not be called.

Therefore, in the present invention, the operability when the hinge shaft 1 is fitted can be improved.

(Means for Solving Problems) The contents of the present invention are described below with reference to FIGS.
It will be described with reference to the drawings.

A hinge shaft 1 provided on the lid 7, a bearing portion 3 provided on a top end portion of the main body 2 and provided with a groove 4 on the inner surface side into which the hinge shaft 1 is fitted,
A hinge lever 5 which is provided so as to be vertically movable along the inner surface side of the bearing portion 3 and which opens and closes a groove 4 of the bearing portion 3 by the vertical movement.
And a spring 6 that constantly urges the hinge lever 5 upward. In the lid opening / closing device for holding the hinge shaft 1 in the groove 4 of the bearing portion 3 by the hinge lever 5, the upper end of the hinge lever 5 is Provides a recess 5a for receiving the hinge shaft 1 and guiding the shaft 1 into the groove 4 of the bearing portion 3 as the hinge lever 5 moves downward.

(Operation) In the above structure, the presence of the concave groove 5a at the upper end of the hinge lever 5 prevents the hinge shaft 1 from sliding down from the upper end of the hinge lever 5, so that the hinge shaft 1 can be reliably pushed down. Therefore, the work of fitting the hinge shaft 1 into the groove 4 is smoothly performed.

(Embodiment) An embodiment of the present invention shown in FIGS. 1 to 5 will be described in detail below.

Reference numeral 1 denotes a hinge shaft provided on the outer lid 7, and 3 denotes a bearing portion integrally provided on an upper ring 8 at the upper end of the rice cooker body 2, the hinge shaft 1 having a fitting groove 4 provided on the inner surface side. Reference numeral 5 denotes a hinge lever which is inserted into the through hole 9 of the upper ring 8 and is vertically movable along the inner surface side of the bearing portion 3, and a recess 5a is formed at the upper end of the hinge lever so as to face the bearing portion 3 side. The recess 5a is formed by notching the upper end corner of the hinge lever 5 or by forming a rib on the upper end surface, and the hinge shaft 1 is fitted therein.

Further, the hinge lever 5 is provided with a knob portion 5b integrally projecting, and the knob portion 5b is exposed to the outside from the operation port 10 on the side wall of the rice cooker body 2. Further, the hinge lever 5 has a notch-shaped engaging portion 5c formed on the side opposite to the knob portion 5b, and when the hinge lever 5 is moved downward, the engaging portion 5c is attached to the lower end edge 8'of the upper ring 8. The hinge lever 5 can be engaged to hold the hinge lever 5 at a lower position against a spring described later. It should be noted that when the hinge lever 5 is engaged and held at the lower position, the gap L between the bearing portion 3 and the hinge lever 5 becomes smaller than the hinge shaft 1.
It is set to be smaller than the diameter of. Reference numeral 6 is a spring that constantly biases the hinge lever 5 upward.

Reference numeral 11 is a latch lever provided on the outer lid 7, and locks the outer lid 7 in a closed state by engaging with the hook piece 12 of the upper ring 8. 13 is an inner lid detachably supported on the inner surface of the outer lid 7,
Reference numeral 14 denotes an inner pot that is freely inserted into and removed from the rice cooker body 2.

A case where the outer lid 7 is removed from the rice cooker body 2 in the above configuration will be described. With the outer lid 7 attached,
As shown in FIGS. 1 and 2, the hinge shaft 1 is fitted in a groove 4 of the bearing portion 3 and held by a hinge bar 5. From this state, first, by operating the knob portion 5b, the hinge lever 5 is moved inward and pushed inward, so that the engaging portion 5c
As shown in FIGS. 3 and 4, the lower edge of the upper ring 8
The hinge lever 5 is held in the lower position by engaging 8 '. Next, the latch lever 11 is removed from the hook piece 12, and the hinge shaft 1 is operated to be pulled out from the groove 4 with the outer lid 7 opened at an appropriate angle. That is, the hinge shaft 1
The hinge shaft 1 is moved in the direction of the arrow from the position shown in the figure. Since the diameter of the hinge shaft 1 on the way is larger than the gap L, a force is applied to the upper end of the hinge lever 5 in the direction of the arrow shown in FIG. The hinge lever 5 moves in a direction to disengage the engaging portion 5c from the lower end edge 8'of the upper ring 8, and when this engagement is disengaged, the hinge lever 5 moves upward due to the urging force of the spring 6, and the hinge shaft located in the recess 5a. 1 is pushed up and pulled out from the groove 4.

As described above, the work of removing the outer lid 7 is performed by the hinge lever 5
Can be carried out in a state where it is engaged and held at the lower position, and workability is better than that when it is carried out while pushing down the hinge lever 5, and the hinge lever 5 is automatically operated when the hinge shaft 1 is pulled out. Can return to the upper position.

Next, a case where the outer lid 7 is attached to the rice cooker body 2 will be described. First, the hinge shaft 1 is fitted into the recess 5a of the hinge lever 5 as shown in FIG. 5, and the hinge lever 5 is pushed downward from this state. At this time, although the hinge shaft 1, the hinge lever 5, and the like are located at positions difficult to see due to the outer lid 7,
Due to the presence of a, the hinge shaft 1 can surely push down the hinge lever 5 without sliding down from the upper end of the hinge lever 5. Then, when the concave portion 5 a faces the groove 4 due to the downward movement of the hinge lever 5, the hinge shaft 1 moves to the concave portion 5 a.
It is fitted in the groove 4 from a, and accordingly, the hinge lever 5
Is returned to the upper position by the urging force of the spring 6, as shown in FIGS. As described above, the hinge shaft 1
Although the hinge lever 5 and the like are hard to see by the outer lid 7, the hinge shaft 1 can be easily and easily fitted.

(Effect of the Invention) As described above, in the present invention, the recess is provided at the upper end of the hinge lever, so that the hinge shaft can be easily and easily fitted into the groove, and the operability can be improved. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an upper half of a rice cooker according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an essential part of the rice cooker, and FIGS. 3 and 4 are hinge shafts thereof. FIG. 5 is an operation explanatory view when the hinge is removed, FIG. 5 is an operation explanatory view when the hinge shaft is inserted, and FIG. 6 is a configuration explanatory view of a conventional lid opening / closing device. 1: Hinge shaft, 2: Rice cooker body (body), 3: Bearing part,
4: groove, 5: hinge lever, 5a: concave part, 6: spring, 7: outer lid.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kazumasa Hirata 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Prefecture Sharp Corporation (72) Takao Murai 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Incorporated (72) Inventor Yoshiaki Ogura 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka

Claims (1)

[Scope of utility model registration request] 1. A hinge shaft provided on a lid, and a bearing portion provided on an upper end portion of a main body with a groove into which the hinge shaft is fitted, on an inner surface side thereof.
A hinge lever that is vertically movable along the inner surface of the bearing portion and that opens and closes a groove of the bearing portion by the vertical movement; and a spring that constantly biases the hinge lever upward.
In the case where the hinge lever holds the hinge shaft in the groove of the bearing portion, the upper end of the hinge lever has a recess for receiving the hinge shaft and guiding the shaft into the groove of the bearing portion as the hinge lever moves downward. A lid opening / closing device characterized by being provided.