JPH0531089Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention consists of a main body that is attached to the mouthpiece of a bottle;
This invention relates to a hinge structure and a cap that connects the cap body that is placed on the upper end of the main body.

[Conventional technology]

Caps attached to the mouthpiece of bottles are required to be easy to open and close and to securely seal the container when closed, but there is also a risk of the cap being lost when opened. In order to avoid this problem, a cap body is integrally attached to a part of the main body that is assembled to the mouthpiece via a hinge so that it can be opened and closed.

However, if the main body and the cap are integrated, the cap may lift up from the top of the main body when closed, making it impossible to reliably seal the bottle. When pouring out the stored liquid while tilting the container, the cap rotates and closes, making the pouring operation extremely difficult.

In order to solve this problem, for example, as shown in Japanese Utility Model Application Publication No. 56-141159, a pair of hinge pieces is provided protruding between the main body and the cap body, and this pair of hinge pieces is Products with a so-called mirror hinge structure in which a connecting piece is arranged between the halves have been developed.

This structure is a self-retaining type in which the cap body is maintained in the closed or open position by the connecting piece, and is extremely effective.

[Problem that the invention attempts to solve]

However, the pair of hinge pieces protruding between the main body and the cap body protrude outward or rearward in order to obtain the above-mentioned effect, and are sharp because they are piece-shaped. There was a problem that could easily cause damage.

In particular, when the main body and the cap are cylindrical, the above-mentioned disadvantages are noticeable.

In other words, while the hinge axis formed by the hinge is a straight line, the main body and the outer circumferential surface of the cap are circular, and the hinge axis must be located tangentially to the outer circumferential surface of the cap. Both outer ends of the hinge piece forming the shaped hinge shaft end up protruding largely from the outer peripheral surface of the cap body.

Therefore, the present invention has been devised to solve the problems in the prior art described above. The technical challenge is to prevent it from protruding from the surface, and the aim is to achieve a high level of safety during handling.

[Means for solving problems]

Means of the present invention for solving the above technical problems will be explained with reference to the drawings showing one embodiment of the present invention.

The cap hinge structure of the present invention is composed of a main body 1, a cap body 8, a connecting piece 14, and a hinge body 17.

The main body 1 has a cylindrical shape with an opening 5 at the upper end and is assembled into the mouth of the bottle, and a cap body 8.
The main body 1 has a short cylindrical shape that is crowned at the upper end.

The connecting piece 14 has an upper end connected to the upper surface of the top plate 10 of the cap body 8 via a thin wall portion 16, and a lower end connected to the main body 10 through a thin wall portion 15.
It has a structure that allows for elastic deformation.

Next, the hinge body 17 is arranged on both sides of the above-mentioned connecting piece 14, and is located on a virtual plane including the virtual center line A along the longitudinal direction of the connecting piece 14 and the virtual central axis B of the main body 1 described above. They are arranged as a pair in a plane symmetrical attitude with respect to C, and connect the outer circumferential surface of the main body 1 and the outer circumferential surface of the circumferential wall 9 of the cap body 8, and have a frustum block shape with a flat surface 18 on the outer surface.

Then, the upper end edge of this hinge body 17 is tilted downward toward the above-mentioned virtual plane C, and
The lower edge of the hinge body 17 is tilted upward toward the virtual plane C, and notches 7 and 12 are provided in predetermined portions of the main body 1 and the cap body 8. The hinge body 17 is inserted into the notches 7 and 12.

The connecting piece 14 connects the outer peripheral surface of the main body 1 and the cap body 8.
Since it is connected to the upper surface of the top plate 10 of the cap body 8, it is bent at the upper end of the cap body 8 to form a substantially L-shape, but in its original state without any external force being applied, it is bent at an acute angle and is susceptible to elastic deformation. This results in the above-mentioned inverted L shape.

Further, the hinge body 17 has a flat surface 18 on its outer surface.
Therefore, when the cap body 8 is in the closed position, it does not protrude from the outer peripheral surface of the main body 1 or the cap body 8.

[Effect]

In the above structure, when the cap body 8 is closed with respect to the main body 1, the connecting piece 14, which has an acute bent shape, is elastically deformed in the direction of opening the bent angle, and the elastic force causes the cap body 8 to be closed. When the cap body 8 is held in the closed position and the cap body 8 is opened, the thin wall portions 16 and 15 are bent, and as the cap body 8 is rotated in the opening direction, the cap body 8 is elastically bent into an acute bent shape. Since it returns to its original state and continues to apply its elasticity to the cap body 8, the open posture of the cap body 8 is maintained.

Also, a pair of frustum block-shaped hinge bodies 17
Since the hinge body 17 is located on both sides of the connecting piece 14, the upper and lower edges forming the hinge axis are tilted forward as they move away from the connecting piece 14. Both hinge bodies 17
It is necessary that the upper and lower edges of the cap 8 on the opposite side thereof, compared to the end near the connecting piece 14, be displaced more when the cap body 8 is rotated to open and close with respect to the main body 1.

The truncated conical shape of both hinge bodies 17, that is, the inclination angle of the upper and lower edges, is set according to the difference in rotational displacement between the upper and lower edges, and therefore the opening and closing rotation of the cap body 8 is During operation, no unreasonable tensile force is applied to the upper and lower edges of the hinge body 17.

The hinge movement by both hinge bodies 17 is achieved by the hinge body 17 rotating around its upper and lower edges as rotational displacement axes. Therefore, when opening the cap body 8, the hinge body 17 When the main body 1 and the cap body 8 are displaced to protrude from the outer peripheral surfaces and the cap body 8 is closed, the protruding hinge body 17 is retracted and housed in the notches 7 and 12.

In this way, the pair of hinge bodies 17 have the upper and lower edges forming the hinge axis not protruding from the outer peripheral surfaces of the main body 1 and the cap body 8 at all, and the outer surfaces thereof are the flat surfaces 18. In the closed state of the cap, the hinge structure does not protrude from the outer peripheral surface of the combination of the main body 1 and the cap body 8 at all.

〔Example〕

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

The main body 1 has a top wall 3 connected to the upper end of a cylindrical wall 2 that is attached to the mouth of the bottle, a spout pipe 4 erected in the center of the top wall 3, and an opening 5 formed. A cutout 6 is provided at the rear upper end of the cylinder wall 2, into which a portion of the connecting piece 14 enters when the cap body 8 is closed. The lower end of the connecting piece 14 is connected to the lower end of the connecting piece 14 via a thin wall portion 15, and a first notch 7 is provided at the upper end of the outer peripheral surface of the cylinder wall 2 at both ends of the cutout portion 6.

In addition, a cap body 8 that is covered with the upper end of the main body 1
has a structure in which a top plate 10 is connected to the upper end of a circumferential wall 9 having a short cylindrical shape. The upper end (front end in the illustrated embodiment) of the connecting piece 14 is connected to the top plate 10, which is the front end of the section 11, via the thin wall section 16.
A second notch 12 is provided.

In addition, on the central inner surface of the top plate 10, there is a sealing projection 13 that tightly fits into the spouting cylinder 4 of the main body 1 and seals the opening 5.
is installed protrudingly.

The pair of hinge bodies 17 are in the shape of a truncated triangular pyramid block, and have an imaginary plane C including an imaginary center line A along the longitudinal direction of the connecting piece 14 and an imaginary central axis B of the main body 1 (see FIG. 2). The upper and lower edges, which provide a substantial hinge axis, are arranged symmetrically in a plane with their tapered sides facing each other, and the upper and lower edges, which provide a substantial hinge axis, are vertically inclined in opposite directions but at equal angles, and are planar. , the connecting piece 14 is inclined forward at an equal angle as the distance from the connecting piece 14 increases.

The main body 1, the cap body 8, the connecting piece 14, and both hinge bodies 17 are integrally injection molded from a synthetic resin material in an open position.

[Effect of idea]

Since the present invention has the above-described structure, the cap body can be easily opened and closed by simple operations, and the open or closed state can be maintained reliably, so that the storage liquid can be easily opened and closed. Protection is ensured and dispensing operation is easy.Furthermore, in the closed state, the hinge structure does not protrude from the outer surface of the combination of the main body and the cap, so there is no chance of getting your fingertips caught during use. It exhibits many excellent effects, including extremely high safety with no fear of scratches.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention in an open state. FIG. 2 is an overall perspective view of the embodiment shown in FIG. 1 in a closed state. Figure 3 shows
This figure shows the main parts of the embodiment shown in FIG. 1 in a closed state, where a is a partial plan view and b is a partial vertical sectional view. FIG. 4 shows the main parts of the embodiment shown in FIG. 1 in an open state, in which a is a partial plan view and b is a partial vertical sectional view. Explanation of symbols, 1...Main body, 2...Cylinder wall, 3...
Top wall, 4... Pour tube, 5... Opening, 6... Cutout, 7... Notch, 8... Cap body, 9... Peripheral wall, 10... Top plate, 11... Cutout, 12... Notch, 13... Sealing projection, 14... Connecting piece, 15...
... Thin wall part, 16... Thin wall part, 17... Hinge body,
18...Flat surface.

Claims (1)

[Scope of utility model registration request] A cylindrical main body 1 having an opening 5 at the upper end and assembled into the mouth tube of the bottle, a short cylindrical cap 8 with a cap that is capped on the upper end of the main body 1, and a thin-walled part at the upper end. 16 to the top plate 1 of the cap body 8
0, and a connecting piece 14 that can be elastically deformed and whose lower end is connected to the outer circumferential surface of the main body 1 via a thin wall portion 15; It has a pair of hinge bodies 17 in the shape of a frustum block, which connects the outer circumferential surface and the outer circumferential surface of the circumferential wall 9 of the cap body 8, and has a flat outer surface 18.
a virtual plane C including a virtual center line A along the longitudinal direction of the connecting piece 14 and a virtual central axis B of the main body 1;
The upper end edges of the pair of hinge bodies 17, which are positioned in a plane symmetrical attitude with respect to the plane, are tilted downward toward the virtual plane C, and the lower end edges of the hinge bodies 17 are tilted upward toward the virtual plane C. When the cap body 8 is in the closed position, the hinge body 1
A cap and hinge structure in which a notch 12 into which the cap 7 is inserted is provided in the main body 1 and the cap body 8.