JPH0984697A - Opening/closing device for lid body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely match a lid body and a vessel without generating any deviation between them even when the lid body is closed by providing abutting planes at an engage piece and a hook for engage, forming one of abutting planes into projecting or recessed shape and forming the other abutting plane into recessed or projecting shape. SOLUTION: At the moment when closing a lid body 14, a lower surface part 41b of a pawl part 41 positioned on the front of a catcher cover 38 is in contact with an upper surface part 33a of an opening/closing button 33 and at the same time, the opening/closing button 33 is turned in counter-clock-wise direction. The pawl part 41, front face part 41c and a front face part 33c of the opening/closing button 33 are slid in mutually different directions while touching and when the upper surface part 41a arrives at the position in contact with the lower surface part 33b of the opening/closing button 33, the opening/closing button 33 is inversely turned by a coil spring 36 so that the pawl part 41 can be slid into a groove 46 of the opening/closing button 33. Since upward energizing force caused by the spring of a hinge part is exerted upon an upper surface part 46a of the groove 46 and energizing force caused by the coil spring 36 is exerted upon a side surface part 46b, the lid body 14 is locked on an outer body 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid opening / closing device which is supported by a hinge portion so as to be openable and closable.

[0002]

2. Description of the Related Art Conventionally, various devices have been known as devices for locking a lid of a container to the container. As an example, an opening / closing device for the outer lid of the rice cooker will be described. The outer casing of the rice cooker corresponding to the container and the outer lid corresponding to the lid that covers the opening of the upper surface of the rice cooker are connected by a hinge portion, and the hinge shaft provided inside the outer casing serves to attach the outer lid to the outer casing. Is rotatably supported. On the other hand, an opening / closing device including a hook lever for locking and a locking piece is provided at a position facing the hinge portion. This opening / closing device has a structure in which the claw portion provided at the tip end portion of the hook lever at the time of closing the lid is hooked on the locking piece provided on the outer case so that the outer cover is locked to the outer case. ing. Furthermore, since the hook lever for locking receives the biasing force of the elastic body, the claw portion can be continuously locked to the locking piece of the outer case. On the contrary, the hook lever can be easily disengaged from the locking portion by operating the operation portion of the opening / closing button which is interlocked with the hook lever with the fingertip. In addition, since the hinge shaft described above is provided with a hinge spring formed of an elastic member that constantly urges in the direction in which the outer lid is opened, the hook lever and the locking piece are locked by the above-described operation. When it is released, the outer lid is opened to the predetermined position, so that the inner pot can be easily put in and taken out.

[0003]

However, since the hinge portion is provided with a backlash in order to smoothly operate the outer lid, when the outer lid is strongly closed, the outer lid is attached to the outer body. Since it does not match the opening on the top surface and is displaced laterally, the appearance was not good. An object of the present invention is to solve the above-mentioned problems, and to prevent the lid from closing, no matter how the lid is closed, the lid and the container can be surely matched and closed.

[0004]

A lid opening / closing device rotatably supported by a hinge portion with respect to a container, wherein a locking piece is provided on either the lid or the outer wall of the container. On the other hand, a locking hook facing the locking piece and constantly biased in the locking direction by an elastic body is provided, and the locking piece and the locking hook are provided with contact surfaces facing each other, One of the contact surfaces is formed in a convex shape or a concave shape toward the axis of the container, and the other contact surface is formed in a concave shape or a convex shape so as to match it, and the locking operation is performed by the closing operation. The gist is that both contact surfaces are brought together by the biasing force of the hook in the locking direction so that the lid and the container are aligned at the center position.

In the lid opening / closing device of the present invention having the above-described structure, the locking piece is provided on either the lid or the outer wall of the container, and the other is opposed to the locking piece and is always attached in the locking direction by the elastic body. A biasing hook is provided to open and close the lid. The locking piece and the locking hook are provided with abutting surfaces facing each other with one convex and the other concave, and the abutting surface of the locking hook is made of an elastic material. It is biased toward the contact surface of the locking piece. Therefore, even if the center line of the locking piece and the locking hook do not match when the lid is closed,
When the elastic body described above applies a biasing force to the locking hook, the lid body is guided by the contact surface and slides sideways to move to the center. Therefore, the center lines described above can be surely aligned with each other. .

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the lid opening / closing device of the present invention will be described below.

As an embodiment of the lid opening / closing device of the present invention,
A description will be given using the rice cooker shown in FIG. The rice cooker body shown in FIG. 1 is a base 11 including a burner such as a burner body.
And an outer case 12 detachable from the base 11 and the outer case 1
It has a shuttle 13 located inside 2, and a lid 14 that covers the upper opening of the outer case 12 in an openable and closable manner.

Next, the structure of the hinge portion 16 for opening and closing the lid 14 will be briefly described with reference to the explanatory views of FIGS. 2 and 3. The hinge part 16 is installed on the upper part of the outer case 12 at a position facing a locking part 17 described later.
A hinge shaft 21 for pivotally supporting the lid body 14 is provided in the hinge portion 16, and a tubular inner member for rotating the lid body 14 is provided around the hinge shaft 21. −
What is called (not shown) is extrapolated. Further, a spring spring 22 is wound around this inner member, and the lid 1
Since 4 is fixed so that the spring force acts in the direction a shown in FIG. 3, when the locking force acting on the locking portion 17 described later is lost, the lid body 14 is centered around the hinge shaft 21 without permission. It rotates and stops at the position shown in FIG. Further, below the hinge portion 16, there is provided a juice receiver 23 for receiving water droplets accumulated inside the lid body 14 when cooking rice, so that the table or the like may get wet when the lid body 14 is opened and closed. There is no.

Next, the locking portion 17 for locking the lid 14 to the outer case 12 will be described with reference to the explanatory views of FIGS.
In the locking portion 17 shown in FIGS. 4 and 5, a catcher base 31 is provided at a position facing the hinge portion 16 provided in the upper opening of the outer case 12, and the front face of the catcher base 31 is provided. On the side, an opening / closing button 33 that is a hook for locking
There is a hole 32 for accommodating the. Furthermore, on both the left and right sides of the inner wall, the rotary shaft 34 of the open / close button 33 is provided.
One semi-elliptical hole portion 35 is provided to match with the above. A fixing hole 37 for fixing a coil spring 36, which will be described later, is provided near the lower surface of the storage hole 32 for the open / close button 33.
Is provided.

After inserting and fixing the coil spring 36 in the fixing hole 37, the opening / closing button 33 is inserted into the opening / closing button 33 storage hole 32 on the front surface of the catcher base 31 described above.
The open / close button 33 is rotated in the a or b direction in FIG. 3 about the rotary shaft 34 provided on both side surfaces thereof by pushing the operation surface 43 of the upper surface inclined portion, and the lid body 14 is rotated. Open and close. Also, the open / close button 33
A groove 46 for inserting and engaging a claw portion 41, which will be described later, is provided on the back surface side of the back side of the open / close button 33. It is locked by the hook part 48 which is a part. Also, this groove 4
A fixing hole 47 for fixing the coil spring 36 is provided in the lower portion of 6 like the catcher base 31, and the pressing (rotation) force of the coil spring 36 installed in these fixing holes 37 and 47 is opened and closed. It works in the direction of pushing the lower end of the button 33 to the front (left in the drawing). Further, the back side upper front part 33c of the open / close button 33 is formed in a convex arc shape and abuts on a positioning surface 38a of a catcher cover 38, which will be described later, at the time of closing the lid, and the upper surface opening of the outer case 12 and the lid. Positioning with the body 14 is performed.

On the other hand, the lid body 14 has a catcher cover 3 which is located above the catcher base 31 when the lid is closed.
8 are provided. As shown in FIG. 7, the catcher cover 38 is provided with a positioning surface 38a which is formed in a concave arc shape toward the axis of the outer case 12. The arc diameter of the positioning surface 38a is equal to the opening / closing button 33.
The diameter is the same as that of the positioning surface 33c provided on the operation portion (convex portion) 43 which is the upper surface inclined portion. Further, the catcher cover 38 is provided with a claw portion 41 for engaging with the hook portion 48 of the opening / closing button 33 on the front surface thereof, and a projection portion of the hook portion 48 of the opening / closing button 33 when the lid is closed. When engaged, the lid body 14 is configured so as not to rotate in the direction a in FIG.

Next, the operation of the locking portion 17 when the lid is closed will be described with reference to FIG. At the moment when the lid 14 is closed, the lower surface portion 41b of the claw portion 41 located in front of the catcher cover 38 comes into contact with the upper surface portion 33a of the opening / closing button 33, and at the same time, the opening / closing button 33 moves counterclockwise in FIG. Rotate. Then, when the front surface portion 41c of the claw portion 41 and the front surface portion 33c of the open / close button 33 slide in different directions while contacting each other, and the upper surface portion 41a reaches the position where the upper surface portion 41a contacts the lower surface portion 33b of the open / close button 33, Coil spring 36
Thereby, the opening / closing button 33 is rotated in the opposite direction (clockwise), and the claw portion 41 is slid into the groove 46 of the opening / closing button 33. As a result, the upper surface portion 46a of the groove 46 is urged by the spring spring 22 of the hinge portion 16 in the upward direction in the drawing, and the side surface portion 46b of the groove 46 has the opening / closing button 3a.
Since the coil spring 36 of No. 3 exerts an urging force to the right in the drawing, the lid 14 is locked to the outer case 12. Further, when the lid 14 is locked to the outer case 12, as shown in FIG.
Even if there is a deviation as shown in Fig. 7, the biasing force F1 is applied radially and tangentially between the catcher cover 38 and the positioning surfaces 38a and 33c of the open / close button 33 due to the pressing force of the coil spring 36 described above. , F2 will work respectively. Since the open / close button 33 cannot move in the left-right direction in FIG. 7, the positioning surface 38a performs a sliding operation on the positioning surface 33c, and the lid body 14 serves as the outer body 1.
2 Smooth leftward in Fig. 7 to match the opening on the top surface.
Since there is a displacement in the radial direction, there is no radial or tangential displacement.

As described above, according to the lid opening / closing device of the present embodiment, when the lid 14 is closed, the outer body 12 and the locking portions 17 provided on the lid 14 are displaced from each other. Therefore, the upper surface opening of the outer case 12 and the lid 14 can be accurately matched. The open / close button 33 is attached to the lid 14
The catcher cover 38 may be provided on the catcher base 31, and the same effect can be obtained.

The embodiment of the present invention has been described above.
The present invention is not limited to these examples, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention. For example, it can be applied to very familiar objects such as a small case or a trash can with a lid.

[0015]

As described above, according to the lid opening / closing device of the present invention, the lid can be accurately aligned with the opening of the upper surface of the container, and the center line of the locking piece and the locking hook can be adjusted. Since they can be surely matched with each other, it is possible to avoid a bad impression in appearance when the lid is opened and closed as in the conventional case.

[Brief description of drawings]

FIG. 1 is a structural diagram of a rice cooker according to an embodiment when a lid is closed.

FIG. 2 is an explanatory diagram of a hinge portion as an example.

FIG. 3 is a structural diagram of the rice cooker as an example when the lid body is opened.

FIG. 4 is an explanatory diagram of a locking portion as an example.

FIG. 5 is a cross-sectional view of a locking portion as an example.

FIG. 6 is an explanatory diagram of a locking portion as an example.

FIG. 7 is an operation diagram of a locking portion as an example.

[Explanation of symbols]

 Outer body ・ ・ ・ 12 Lid ・ ・ ・ 14 Hinge ・ ・ ・ 16 Locking ・ ・ ・ 17 Catcher stand ・ ・ ・ 31 Open / close button ・ ・ ・ 33 Contact surface (open / close button) ・ ・ ・ 33c Coil spring・ ・ ・ 36 Catcher cover ・ ・ ・ 38 Abutment surface (catcher cover) ・ ・ ・ 38a Catcher cover claw ・ ・ ・ 41 Open / close button hook ・ ・ ・ 48

Claims (1)

[Claims] 1. An opening / closing device for a lid body rotatably supported by a hinge portion with respect to a container, wherein either one of the lid body or the outer wall of the container has a locking piece, and the other has the engaging piece. A locking hook is provided which faces the stop piece and is constantly urged in the locking direction by an elastic body. The locking piece and the locking hook are provided with contact surfaces facing each other. One of them is formed in a convex shape or a concave shape toward the axis of the container, and the other contact surface is formed in a concave shape or a convex shape so as to match with it, and the locking hook is locked by the closing operation. A lid opening / closing device, characterized in that both abutting surfaces are brought together by a biasing force in a direction so that the lid and the container are aligned at a center position.