JPH08198291A - Elastic reversal mechanism of lid element - Google Patents

Abstract

PURPOSE: To provide an elastic reversal mechanism of a lid element capable of performing the efficient elastic reversal of the lid element, reducing the load applied to a bending part to impart higher durability and having good appearance. CONSTITUTION: A main body 1 and a lid element 2 are connected at the rear parts thereof through a thin-walled hinge 7 and a pair of left and right elastic connection plates 3, 3 are provided to the vertically long recessed parts 12 formed by fowardly depressing the lid element and the main body at the parts on both sides of the hinge 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid elastic reversing mechanism.

[0002]

2. Description of the Related Art Conventionally, many elastic reversing mechanisms for lids have been known, and a typical one is a so-called three-point hinge mechanism. The mechanism closes a rear upper end of a main body such as a container main body or a cap main body and a rear lower end of a lid body placed on the upper surface by closing an opening formed on the upper surface thereof. In addition to connecting with the pair of left and right first hinges, the lower end of the inverted L-shaped elastic plate provided between the first hinges is connected to the rear portion of the main body below the first hinges via the second hinges, The other end of the elastic plate is connected to the lid upper surface portion in front of the first hinge via the third hinge.

In the above-mentioned three-point hinge mechanism, the elastic plate is largely exposed to the outer surface of the lid body, which has a drawback that the appearance is impaired. Further, since the cut groove for defining the elastic plate is provided in the lid body, there is a problem. There is also such an inconvenience that dust and the like penetrate into the upper surface of the main body.

In order to solve such drawbacks, a container body having a mouth portion on the upper surface, a lid body which is fitted on the upper surface of the container body by closing the mouth portion, and a lower end of a plate portion on the rear portion of the container body. To
The upper and lower plate portions are connected to the rear portion of the lid body through a pair of left and right bending portions, and a pair of vertically parallel elastic connecting plates are provided. The elastic connecting plate with respect to the container body, and the lid body centering on the upper and lower bending portions are rotatable by elastic reversal of the elastic connecting plate. The upper and left refraction parts are formed in a taper in which the middle part is lowered, and the left and right refraction parts are formed in a taper in which the middle part is projected rearward as viewed from above. A composition is proposed.

[0005]

As in the case of the conventional three-point hinge mechanism, a part of the hinge is formed on the lid top wall and the elastic plate is exposed at the rear portion of the top wall in the reversing mechanism. Since the elastic connecting plate is located on the rear surface side of the main body, the appearance is not damaged. Further, when the lid is released, the main body and the lid can be separated from each other via the elastic connecting plate, so that various effects can be exhibited such that the lid does not become an obstacle when pouring liquid or the like. Although excellent, there is a possibility that good elastic inversion cannot be performed unless the lateral width of each connecting plate is relatively wide due to its structure.

If the width of the elastic plate is wide, a large force is naturally required for its elastic deformation, the load applied to the thinly formed refracting portion is also increased, and the portion is easily damaged.

The present invention solves the above-mentioned drawbacks of the prior art. It is possible to perform efficient reversal while maintaining the advantages of the above-mentioned conventional mechanism, reduce the burden on the bending portion, and impart more durability. It is an object of the present invention to propose an excellent elastic reversing mechanism of the lid body that can be performed.

[0008]

In order to solve the above-mentioned problems, the elastic inversion mechanism of the lid of the present invention has a main body 1 having a mouth 4 on the upper surface thereof, and a closure of the mouth 4 on the upper surface of the main body 1. While fitting, the lower end of the rear part is attached to the upper end of the rear part of the main body by a thin hinge 7.
And a pair of left and right elastic members stretched in a pair of vertically elongated recesses 12, 12 formed by denting the lid 2 and the main body on both sides of the thin hinge 7 forward and backward, respectively. And a connecting plate (3, 3), the upper end of which is integrally connected to the outer surface of the lower end of the lid through a thin hinge (13), and the lower end of which is located below the upper end of the main body through a thin hinge (14). Each of the connecting plates 3 is formed in the shape of a vertically elongated strip that is integrally connected with each other.

[0009]

When the lid body 2 is pushed up from the state shown in FIG. 2 to the upper side of the main body 1, as shown in FIG. 3, the lower end portion of the lid body of the portion where the upper ends of the elastic connecting plates 3 are joined is rotated by the thin hinge 7. Center point A
, And the connecting plate 3 tries to take a rotating path along the arc b around the connecting portion at the lower end. Therefore, as the lids 2 rotate, each connecting plate 3 elastically deforms so as to extend and rotates, and when it passes through the center of rotation, the elastic restoring force of each connecting plate 3 causes the lid 2 to open. Work reverses.

Further, in the state of FIG. 3 where the arcs a and b intersect, each connecting plate 3 is in a stable state, and this open state is stably maintained.

When the lid is closed, the lid body 2 is moved from the state shown in FIG.
When is pushed up, the respective connecting plates 3 act to close the lid in the same manner as described above, and in this state, the arcs a and b intersect with each other to maintain a stable closed lid state.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the elastic reversing mechanism of the present invention includes a main body 1, a lid 2, and a pair of elastic connecting plates 3 and 3.

The main body 1 has a mouth portion 4 on its upper surface. For example, as shown in FIG. 1, it may be a cap body 1 to be screwed into a mouth or neck portion of a bottle or the like. Is formed into a tubular shape with an opening on the lower end surface, and the inner surface of the peripheral wall 5 is screwed to the neck of the container body or the like. Although not shown, the container body may be used, and in this case, the lower end surface of the peripheral wall is closed by the bottom wall.

Further, the mouth portion 4 may be formed in a small-diameter cylindrical shape as in the embodiment of FIG. 1 or may be formed in a large-diameter trumpet shape, and is used for this kind of cap or the like. It can be adopted if it has a configuration.

The lid 2 closes the mouth 4 and fits on the upper surface of the main body 1, and the lower end of the rear portion is connected to the upper end of the rear portion of the main body via a thin hinge 7 so as to be opened and closed.

In the present embodiment, a rod plug having a lower end face opening in which a top wall 9 is extended from the upper end edge of the peripheral wall 8 is formed into a short cylinder shape, and which fits into the mouth portion 4 in a liquid-tight manner from a predetermined position on the back surface of the top wall 9. 10 are hung vertically. In addition, an annular recess 11 formed in the peripheral portion of the upper surface of the main body top wall 6
The lower end of the peripheral wall 8 is configured to be fittable.

Each elastic connecting plate 3 is stretched over a pair of vertically elongated recesses 12, 12 formed by denting the main body 1 and the lid body 2 on both sides of the thin hinge 7 forward. In the present embodiment, each longitudinal recess 12 is formed by vertically cutting the main body 1 and the lid body 2. However, the present invention is not limited to this, and each elastic connecting plate 3 when the lid body 2 is elastically inverted and rotates. It is also possible to set a minimum range that does not interfere with the transition of.

Each elastic connecting plate 3 has its upper end portion integrally connected to the outer surface of the lower end portion of the lid body via a thin hinge 13, and
The lower end portion is formed in a vertically elongated strip shape integrally connected to the outer surface of the position spaced apart from the upper end portion of the main body 1 through a thin hinge 14. Both connecting plates are vertically parallel to each other, and upper and lower ends are connected horizontally.

The main body 1 and the lid body 2 as described above are formed by integral molding of synthetic resin in the open state as shown in FIG. 3 and in the state where each connecting plate 3 is stable.

[0021]

As described above, in the elastic reversing mechanism of the present invention, a part of the hinge is formed on the top wall of the lid and the elastic plate is not exposed at the rear part of the top wall. Since it is located on the rear side of the main body, the appearance is not damaged.

Further, since it is not necessary to form a cut groove for defining the elastic connecting plate on the lid body, there is no inconvenience that dust or the like enters the upper surface of the main body from there.

Further, when the lid is opened, the lid can be largely opened, so that the lid does not become a hindrance when the liquid is poured out.

Further, since good elastic reversal can be performed without providing the connecting plate with a wide width, the hinge portion formed to be thin has a small load and is excellent in durability.

Further, since each elastic connecting plate is vertically stretched, it also has an advantage of excellent formability.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention in an open lid state.

FIG. 2 is a perspective view of the same embodiment in a closed state.

FIG. 3 is a side view of a main part of the embodiment with a lid open.

FIG. 4 is a plan view of an essential part of the embodiment with a lid open.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Lid body, 3 ... Elastic connecting plate, 4 ... Mouth part, 7 ...
Thin-walled hinge, 12 ... Vertical recess, 13 ... Thin-walled hinge, 14 ... Thin-walled hinge

Claims (1)

[Claims] 1. A main body 1 having a mouth 4 on an upper surface thereof, and the mouth 4 is closed to be fitted to the upper surface of the main body 1, and a rear lower end of the main body 1 is openably and closably connected to a rear upper end of the body via a thin hinge 7. The lid 2 and the pair of vertically elongated recesses 12 formed by denting the lid and the body on both sides of the thin hinge 7 forward.
A pair of left and right elastic connecting plates 3 and 3 are respectively stretched over 12 parts, and the upper end is integrally connected to the outer surface of the lower end of the lid through a thin hinge 13, and the lower end is lower than the upper end of the main body. An elastic reversing mechanism for a lid, characterized in that each of the connecting plates 3 is formed in a vertically elongated strip shape integrally connected to the outer surface at a position separated from each other via a thin hinge 14.