JPS5827732Y2 - lid hinge structure - Google Patents

Description

[Detailed description of the invention] This invention is a hinge structure (hereinafter referred to as a lid hinge structure) in which a hinge attached to open and close the lid of a container with a lid, such as an electric heating pot, is removably attached to the container. .

), and particularly relates to a lid hinge structure that is simple in structure by reducing the number of members as much as possible, while at the same time providing a reliable and stable mounting condition.

2. Description of the Related Art In recent years, thermos flasks and the like have come to be seen in which the hinge that connects the lid and the container is removable for convenience such as cleaning the inner bottle.

The present applicant has also already filed a utility model registration application (Japanese Utility Model Publication No. 15360/1983) regarding the removable lid hinge structure.

However, the lid hinge structure according to the invention has a large number of component parts, is inconvenient to attach to the container with one hand, and does not provide sufficient stability even when attached. It felt difficult.

The present invention has been proposed in view of the above-mentioned drawbacks of the conventional art with the aim of improving them.

The present invention will be explained below based on embodiments shown in the drawings.

FIG. 1 shows the lid hinge structure according to the present invention, and is a perspective view of the lid 2 separated from the container 12.

In the figure, reference numeral 1 denotes the upper half of the hinge, on which downwardly directed brackets 5, 5 are formed, and holes 4 into which the hinge pins 3 are inserted are bored in the sides of the brackets 5, 5.

Reference numeral 6 denotes a lower half of the hinge, which has a combination structure of a connecting member 7 and a holding member 8 into which the connecting member 7 can be fitted.

One of the connecting members 7 constituting the lower hinge half 6 consists of an upper portion connected to the upper hinge half 1 and a lower member fitted into the holding member 8, both of which are made of polypropylene or the like. It is integrally molded from plastic.

The pin receiving portion 9 in the upper portion is fitted into the brackets 5, 5, and is rotatably connected by the hinge pin 3.

The lower portion is formed into a box shape by a front wall surface 7a and left and right side wall surfaces 7b, 7b', and is fitted into the holding member 8 while maintaining alignment.

A gate-shaped opening X is cut in the center of the front wall surface 7a,
Facing this gate-shaped opening X, the lower edge 10a is the front wall surface 7a.
A thick plate-shaped locking piece 10 is provided which is combined with the lower end of the locking member and whose upper edge 10b projects obliquely outward.

That is, the locking piece 10 is provided in the shape of a hook with respect to the front wall surface 7a so that it can be inserted into the holding member 8.

When viewed from the front, the locking piece 10 has a rectangular shape similar to the gate-shaped opening X, and a step is formed on the upper edge 10b of the locking piece 10.

The locking piece 10 having such a structure is made of a highly elastic plastic material, so if the upper edge 10b is pressed inward with a finger or the like, the locking piece 10 will move inward around the lower edge 10a. It can be elastically deformed in the direction and stored inside the gate-shaped opening X.

In this state, when the applied pressing force is released, the locking piece 10 returns to its original state and projects to the outside of the gate-shaped opening X.

The other holding member 8 constituting the lower hinge half 6 is attached to the front wall 8
It has an upwardly open box shape with left and right side walls 8d and 8d', and is fixed to the upper part 13a of the outer cylinder 13 of the container 12 with bolts 14 or the like.

The inner peripheral shape of the holding member 8 when viewed in horizontal cross section is a rectangle similar to the outer peripheral shape when the lower portion of the connecting member 7 is viewed in horizontal cross section.

The lower part of the connecting member 7 can be inserted from the upper opening of the holding member 8.

A window Y is provided in the center of the front wall 8a.

When this window Y is viewed from the front, the above-mentioned connecting member 7
It has a similar rectangular shape to the gate-shaped opening X provided on the front wall surface 7a of the front wall surface 7a, and is large enough to allow the locking piece 10 to fit therein.

Moreover, in this window Y, the lower part of the connecting member 7 is connected to the holding member 8.
When it is fitted into the inside of , it is in a position that exactly matches the gate-shaped opening X and the locking piece 10 .

The lid hinge structure according to the present invention has the above-described configuration. Next, a case where the lid 2 in a separated state is attached to the container 12 will be described.

First, as shown in FIG. 1, the lid 2 and the connecting member 7 are rotatably connected by the hinge pin 3, and then the connecting member 7
is inserted into the holding member 8 along the arrow mark, and assembled into a fitted state.

At that time, the locking piece 1 provided on the front wall surface 7a of the connecting member 7
Since the upper edge 10b of 0 is inclined in the shape of a hook as the insertion progresses, the upper edge 10b of the holding member 8 comes into contact with the inner corner 8C of the upper surface of the front wall 8a of the holding member 8. Receives an inward pressing force.

Therefore, the locking piece 10 elastically bends inward, but when it reaches the position where it aligns with the window Y, the pressing force is released and it springs back to its original hook shape.

Therefore, the locking piece 10 fits into the window Y, as shown in FIG. 2, and its upper edge 10b engages with the downward perforation surface 8b.

In this case, since the upper edge portion 10b of the locking piece 10 is formed in a step shape, this step-shaped portion functions as a stopper, and the locking piece 10 does not protrude outward from the window Y. 10 is engaged in an outwardly biased state, with the restoring force still remaining within it.

Moreover, since the locking piece 10 acts like a reverse hook in the direction of escape, the retained state is strong.

Therefore, even when the lid 2 is opened or closed, the connecting member 7 and the holding member 8 do not easily separate, and are held in an extremely stable state without wobbling.

Although this embodiment shows a step formed on the upper edge 10b of the locking piece 10, the step does not necessarily have to be formed only on the upper edge 10b of the locking piece 10. For example, as shown in FIG. 3, it may be formed on the downward perforated surface 8b of the front wall 8a of the holding member 8.

Furthermore, although not particularly illustrated, the locking piece 1
Steps may be formed on both the upper edge 10b of 0 and the downward perforated surface 8b of the holding member 8.

Furthermore, the holding member 8 does not necessarily have to be attached to the outer cylinder 13 of the container 12.
There is no need to protrude further outward, as shown in Figure 3.
It may be buried inside the outer cylinder 13.

Next, the case where the lid 2 is separated from the container 12 will be explained.

First, as shown in FIG. 2, the locking piece 10 that is fitted into the window Y and is in an engaged state is pressed inward with a finger.

In this way, the engagement can be easily released. Moreover, since the upper edge 10b of the locking piece 10 is inclined outward, the inward pressing force by the finger also acts as an upward component force.
The connecting member 7 is placed in a slightly lifted state in a direction in which it escapes upward from the holding member 8.

Thereafter, when the lid 2 is pulled upward, the connecting member 7 is released from the holding member 8, and the lid 2 is separated from the container 12.

Since the present invention is as described above, it is possible to arbitrarily and easily attach and detach the lid from the container, so that the inner bottle, lid, and other parts of the container can be washed separately.
This is extremely convenient when inspecting parts such as bellows installed inside the lid or repairing malfunctions.

In addition, in the lid hinge structure, the connecting member and the holding member that fits together have similar rectangular shapes, and the connecting member is integrally formed with a locking piece that can be elastically bent to hold it. Since the member is provided with a window that matches the locking piece in a similar shape, the mutual fitting and disengaging operation is extremely smooth and easy, and the fitted state is strong and stable.

Furthermore, since the number of members of the lid hinge structure is minimized, it is possible not only to improve the efficiency of manufacturing and assembly work, but also to provide inexpensive products to customers.

[Brief explanation of drawings]

The drawings are for explaining the embodiment of the present invention, and FIG. 1 is a perspective view showing the lid hinge structure in a state where the lid and container are separated, and FIG. 2 is a perspective view showing the lid hinge structure in a state where the lid is attached. FIG. 3 is a partially cutaway side sectional view of the upper part of the container and the lid hinge structure in a state where the lid is attached. FIG. 1...Hinge top half rest, 2...Lid, 3.
...Hinge pin, 6...Hinge lower half rest,
7... Connection member, 8... Holding member, 1
0... Locking piece, X... Gate-shaped opening, Y...
·····window.

Claims (1)

[Scope of utility model registration request] The upper hinge half is fixed to the lid side of the container with a lid, and the lower hinge half is rotatably connected to the lower part of the upper hinge half by a hinge pin, and the lower hinge half connects a connecting member and the connecting member. In a hinge structure that is combined with a holding member fixed to a container to be fitted, the fitting portions of the connecting member and the holding member are formed into similar box shapes, and the fitting portion of the connecting member is formed into a similar box shape. An elastic locking piece with a hook shaped like a hook is integrally molded on the front wall surface in the order in which it is inserted into the holding member, and an elastic locking piece with a hook shape is integrally formed on the front wall surface of the fitting portion of the holding member at a position that is aligned with the locking piece. A lid hinge structure characterized by having a window formed in a rectangular shape similar to the locking piece and large enough to fit the locking piece.