JPH0615843Y2 - Click hinge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a click hinge used for opening and closing caps of containers and the like.

[Conventional technology]

In general, a click hinge is used at a connecting portion between a container and a cap for covering the container, and by flipping the container, the position of the cap with respect to the container can be set at two positions, an open position and a closed position. Such a click hinge (flap hinge) is disclosed in Japanese Patent Publication No. 63-1770.
There is one as disclosed in Japanese Patent Publication No. That is, as shown in FIGS. 10 to 12, this click hinge includes a cap body 1 fitted to the neck portion of a container (not shown), a pouring hole portion 2 and a closing lid portion 3. It is composed of a hinge connecting portion 4 to be connected and a film-like elastic portion 5 provided on the left and right of the hinge connecting portion 4 and having a substantially U-shaped cross section. The film elastic portion 5 is provided at a portion corresponding to the film elastic portion 5 in the boundary portion between the cap body 1 and the lid portion 3.
Is provided along the circumference. In the open state shown in FIGS. 10 and 11, this click hinge keeps the lid portion 3 in the illustrated state by the force of the U-shaped portion of the membrane elastic portion 5 to open. From this state, when the lid 3 is closed as shown by the arrow in FIG. 11, the membrane elastic portion 5 rotates about the hinge connecting portion 4 and enters the recess 6. In this state, the membranous elastic portion 5 is curved toward the inner side of the cap body 1, and stresses are applied to both ends thereof so as to approach each other. Due to this stress, the closed state of the lid portion 3 is maintained.

[Problems to be solved by the invention]

However, in the above-described click hinge, the shape of the film-like elastic portion 5 is complicated, and the concave portion 6 for accommodating the film-like elastic portion 5 is provided in the boundary portion between the cap body 1 and the lid portion 3. It has to be provided and has a problem that the manufacturing becomes complicated.

The present invention has been made in view of such circumstances, and an object thereof is to provide a click hinge having a simple structure and easy to manufacture.

[Means for solving problems]

In order to achieve the above object, the click hinge of the present invention is such that a rhombus portion 19 made of an elastic plate-like member is provided with a linear thin portion 19b along a short diagonal line of a pair of long and short diagonal lines,
A pair of left and right sides sandwiching a short diagonal line among the four sides of the rhombus portion 19 are set, and an elastic piece 2 having a V-shaped vertical section is formed from each set.
By extending 0 in the direction of extension of the short diagonal line, the rhombus portion 19 is formed into a V-shaped vertical cross-sectional shape with the thin portion 19b as a base, and the boundary between the rhombus portion 19 and the elastic piece 20. Is formed on the linear thin portion 19a, and the vertical section V of each set is formed.
When the rhombus-shaped elastic piece 20 is rotated about the rhombus 19 so that the V-shaped openings overlap, the rhombus 19 having the V-shaped vertical cross-section is inverted into an inverted V-shape in the middle thereof, and the inversion is performed. The elastic pieces 20 are overlapped by force.

[Action]

That is, this click hinge makes it possible to bend a rhombus portion made of an elastic plate-like member around a linear thin portion provided along a short diagonal line as a center, and an elastic piece having a V-shaped longitudinal section, The base portion is connected to both sides of the rhombus portion so as to extend along the extension line of the thin portion. A boundary between the rhombus portion and both elastic pieces extending on both sides of the rhombus portion is also formed into a linear thin portion, and the rhombus portion and both elastic pieces can be bent around the thin portion. Therefore,
When one of the elastic pieces is bent so that the opening side of the V-shaped cross section is overlapped with the V-shaped opening side of the other elastic piece, first, a thin portion along the edge of the rhombus is formed. The rhombus and both elastic pieces bend at the center. At that time, the rhombus portion gradually extends in the width direction of the V-shape (the direction along the long diagonal line), and its cross-sectional shape changes from the V-shape to a linear shape. When the one elastic piece is further bent from that state, the rhombus portion is inverted around the thin portion provided along the short diagonal line, and its vertical cross-sectional shape is the initial V shape.
The elastic piece is V-shaped, which is the opposite of the shape, and the elastic pieces are completely bent and overlapped with each other, and the click hinge stands still. In this state, the restoring force of both of the elastic pieces (to try to maintain the initial V-shaped vertical cross-sectional shape) and the V-shaped rhombus (the projected area is smaller than the planar state) in the vertical sectional shape The clip hinge is restrained from being restored to its original stretched state, and a stable bent state is maintained. Further, this time, when the click hinge is extended so as to separate the elastic pieces from each other, the click hinge returns to the original extended state while being deformed in the opposite manner. Even in this state, the stable stretched state is maintained. That is, in these states, the rhombus portion is a state in which the flat portion extends to the middle point and can be bent on either side around the thin portion along the short diagonal as a center, and the elastic piece is It is maintained in order to always return to the initial V-shaped vertical sectional shape by its own restoring force.

Next, this invention will be described in detail based on embodiments.

〔Example〕

1 to 3 show an embodiment of the present invention. That is, in these drawings, 10 is a cap made of plastic, and the cap body 13 fitted to the neck portion 12 of the container 11, the lid body 14 for covering the cap body 13 and the cap body 13 and the lid body 14 are provided. And a hinge connecting part 15 for connecting. In the cap body 13, a pipe part 16 for pouring is erected from the center of the cap-shaped ceiling part, and a ring-shaped engaging part 17 is formed on the peripheral part of the ceiling part so as to surround it. Has been done. The ring-shaped engaging portion 17 is formed in a substantially trapezoidal shape having a wide ring-shaped upper end opening. The lid 14 is formed in a shallow cap shape that can be fitted onto the ring-shaped engaging portion 17 of the cap body 13 and has a lower surface (in the state shown in FIGS. 1 and 2 it is an upper surface). A rod-shaped plug portion 18 that can fit into the hole portion 16a of the cylindrical portion 16 is vertically provided at the center portion. The hinge connecting portion 15 is made of an elastic plastic, and is a cross-sectional view taken along the line AA ′ in FIGS. 4 (a) and 4 (a) in which the hinge connecting portion 15 in FIG. 1 is looked down from above. As shown in FIG. 6B, the fold line X extending in the left-right direction is bent inward (angle Θ = 90).
), And the whole is a bent piece with a hook-shaped cross section. Then, in the central portion thereof, the linear thin portions 19a, 1
A rhombus portion 19 composed of two triangles surrounded by 9b is formed. It should be noted that this hinge connection part 15
By reversing, the position of the lid body 14 can be divided into the open position and the closed position.
It can be positioned in one position. That is, in the state shown in FIG. 2, the lid 14 is kept open by the initial shape maintaining force (rigidity of itself) of the plastic material of the hinge connecting portion 15.
Next, when the lid 14 is lifted from that state as shown by the arrow a in FIG. 2 and the lid is closed halfway (up to about 45 °), it is hinge-connected as shown in FIG. 5 (a). As a result, a force is applied to the portion 15 so that the portion 15 is folded in two around the chain line B. By applying this force, in the rhombus portion 19 of the hinge connecting portion 15, the force of folding in two left and right around the chain line B is folded up and down around the folding line X (see FIG. 4 (b)). The state of being bent at the angle Θ) is canceled and the rhombus portion 19 is made considerably flat as shown in FIG. 5 (b). That is, due to the above-described closing operation, the two triangles forming the diamond-shaped portion 19 have arrows (fifth and fifth).
An outward stress Y is generated as shown in FIG. In this case, it is the diamond-shaped portion 19 that changes to a considerably flat shape.
Only, and the connecting portion 20 continuing to the same still maintains the initial inward angle (FIG. 4 (b)). This is the same in the following lid closing operation. And from that state,
The lid 14 is further lifted (at the position (9
(0 °)), as shown in FIG. 6 (a), the rhombus 19 has a further bending force in the left-right direction about the chain line B as compared with the state in which the lid opening angle is 45 °. Join,
As a result, not only the stress Y but also the stress Z in the left-right direction is generated, and the rhombus portion 19 becomes substantially flat as shown in FIG. 6 (b). When the lid 14 is further closed from this state, the elastic force of the plastic material that tries to restore the rhombus 19 against the stresses Y and Z, particularly the stress Y, causes the elastic force of FIG. From the state of (a), the portion of the fold line X is raised, and as shown in FIGS. 7 (a) and 7 (b), the rhombus 1
8 is changed from the initial inward bent shape (FIG. 4 (b)) to the outward bent shape, the state shown in FIG. 8 (a), (b) is obtained. In this state, the hinge connection part 15 is folded in two around the chain line B and is in a closed state. In this state, the angle Θ'is equal to the angle Θ in Fig. 4 (a). As a result, the size of the rhombus portion 19 itself becomes substantially the same as the size shown in FIG. That is, the hinge connecting portion 15
When the lid body 14 was closed to close the lid from the opened state shown in FIG. 4 (a), the elastic force of the plastic material automatically closed the left and right portions while overlapping. It becomes a state. Next, in order to open the lid from that state, the lid 14
From the middle of opening, the elastic force of the plastic material automatically opens it. The hinge connecting portion 15 has a hexagonal shape when viewed from above with the lid 14 open, and as shown in FIG. 9, the hinge connecting portion 15 protrudes with the thin portion 19b side facing downward. With the condition
The cap body 13 and the lid body 14 are coupled to each other via the coupling portion 20. The length of the thin portion 19b is set to be approximately twice the height of the hinge connecting portion 15 in the state shown in FIG.

In this configuration, when not in use, the lid 14 is rotated in the direction of arrow a from the open state shown in FIG. as a result,
The hinge connecting portion 15 is bent so that both connecting portions 20 of the hinge connecting portion 15 are overlapped, the lid body 14 is fitted into the ring-shaped engaging portion 17 of the cap body 13, and the plug portion 18 of the lid body 14 is capped. The hole 16a is closed by fitting into the cylindrical portion 16 of the main body 13 to be in the closed state shown in FIG. In addition, at the time of use, remove the lid 14 from the state shown in FIG.
Rotate in the direction opposite to the arrow a in FIG.
The hole 16a of is opened. Then, the container 11 is tilted and the contents stored therein are taken out and used.

As described above, the hinge connecting portion 15 has a V-shaped vertical section.
Since the elastic body of the shape is simply provided with the linear thin portions 19a and 19b, the shape is simple and the manufacturing is easy. When the hinge connecting portion 15 is used in the cap 10 as described above, the thin wall portion 19 of the hinge connecting portion 15 is used.
By the action of a and 19b and the like, the lid body 14 comes to rest at two positions, the open position and the closed position, and the proper open / closed state of the lid body 14 can be maintained. Furthermore, when the lid 14 is opened and closed, a clicking sound is generated, and the deformed state of the hinge connecting portion 15 is surprising, which is very interesting.

In addition, in the above-mentioned embodiment, the hinge connecting portion 15 is connected to the container 11
It is used as the connecting portion between the cap body 13 and the lid body 14 in the cap 10 for covering the lid, but is not limited to this, and any connecting portion having a hinge structure can be used. .

[Effect of device]

Since the click hinge of the present invention is constructed as described above, it has a simple structure and is easy to manufacture.

[Brief description of drawings]

FIG. 1 is a plan view showing an open state of an embodiment of the present invention,
2 is a sectional view taken along the line D-D ', FIG. 3 is a sectional view showing the closed state thereof, FIGS. 4 (a), (b), 5 (a),
(B), FIG. 6 (a), (b), FIG. 7 (a),
(B), FIGS. 8 (a) and 8 (b) are explanatory views showing a deformed state of the hinge connecting portion, FIG. 9 is an enlarged vertical sectional view showing an essential portion of FIG. 2, and FIG. 10 is a conventional example. The top view which shows an open state, 1st
FIG. 1 is a perspective view thereof, and FIG. 12 is a perspective view of essential parts showing the closed state thereof. 15 ... Hinge connection part, 19 ... Rhombic part, 19a, 19
b ... Thin section, 20 ... Connecting section

Claims (1)

[Scope of utility model registration request] 1. A rhombus portion 19 made of an elastic plate member, and a linear thin portion 19b along a short diagonal line of a pair of long and short diagonal lines.
By setting the left and right sides sandwiching the short diagonal line in the four sides of the rhombus portion 19 as one set, and extending the elastic piece 20 having a V-shaped vertical cross-section from each set in the extension direction of the short diagonal line, The rhombus portion 19 is formed in a V-shaped vertical cross-sectional shape based on the thin portion 19b, and the boundary between the rhombus portion 19 and the elastic piece 20 is formed into a linear thin portion 19a. When the elastic piece 20 having a V-shaped vertical section is rotated about the rhombic portion 19 so that the V-shaped openings are overlapped with each other, the rhombic portion 19 having the V-shaped vertical sectional shape is inverted to an inverted V-shape in the middle thereof. A click hinge characterized in that the elastic pieces 20 are overlapped by the reversing force thereof.