JPH04128144A - Cap - Google Patents

Abstract

PURPOSE:To improve appearance by connecting one end of an elastic plate forward and upward of a second hinge through a third hinge and elastically deforming the elastic plate by compression from both end parts of the elastic plate to make the elastic plate disappear within a lid body when the lid body is closed. CONSTITUTION:A lower end edge of a peripheral wall 9 of a lid body 3 engages with an upward stepped part of a base body 2, so that it can open and close. When the lid body 3 is opened, a second hinge 13 rotates around a first hinge 11 from a point (A) in a direction indicated by an arrow. When the second hinge 13 of the elastic plate 12 is at the point (A), the lid body 3 is in a stable state that it is free from an external force. Similarly the lid body 3 comes again into a stable state when the second hinge 13 comes to a point (B), where the distance from the third hinge 15 is the same as at the point (A). Between the points (A) and (B), the elastic plate 12 is elastically deformed by compression from the both end parts, and accordingly the lid body 3 is applied with a force in an opening and closing direction by the resiliency of the elastic plate 12. Effect of force to the lid body 3 varies at a point (C) between the points (A) and (B) at which the deformation of the elastic plate 12 is the largest, and after the second hinge 13 has passed the point (C), that is, between the points (B) and (C), the lid body 3 moves in the opening direction, while between the points (A) and (C), it moves in the closing direction.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a cap-like article, and more particularly to a cap-like article whose lid body is elastically inverted.

"Problems to be solved by conventional techniques and inventions" Conventionally,
A so-called three-point hinge mechanism is known as an elastic reversal mechanism in a cap-like object. This mechanism connects the rear upper end of the base body and the rear lower end of the lid body with a pair of left and right first hinges at an appropriate interval, and connects the lower end of an inverted-shaped elastic plate provided between the first hinges. The elastic plate is connected to the rear part of the base below the first hinge via a second hinge, and the other end of the elastic plate is connected to the upper surface portion of the lid body forward of the first hinge via a third hinge. It is what it is.

However, the above three-point hinge mechanism has the disadvantage that the elastic plate is largely exposed on the outside, which spoils the appearance.
There is still room for improvement in this respect.

It is an object of the present invention to provide an excellent cap-like product that overcomes the drawbacks of the prior art described above.

"Means for solving the problem" A base body 2 having a top wall with a spout and a lid body 3 for opening and closing the spout are connected at each rear part so that the lid body 3 can rotate relative to the base body 2. In the stroke shape @ff, the rear lower end of the lid body 3 is connected to the rear upper end of the base body 2 via the first hinge 11, and a pair of supports are provided at positions in front of both sides of the first hinge 11 on the soil surface of the top wall of the base body 2. 14.14 was established,
The lower ends of a pair of compressively elastically deformable elastic plates 12 and 12 provided in the lid body 3 on both sides of the first hinge II are connected to the rear lower ends of the lid body 3 in front of the first hinge 11, respectively. They are connected via a hinge 1313, and the other end of each elastic plate 12 is connected via a third hinge 15.15 to the upper end of each of the pillars 14, 14 located forward and above the second hinge 13.13. To become a.

"Operation" When the lid body 3 is opened from the state shown in Fig. 2 fa+, the second hinge 1
3 rotates from point A around the first hinge 11 in the direction of the arrow. When the second hinge 13 of the elastic plate 12 is at point A, the lid body 3 is in a stable state where no external force is applied, so the distance from the third hinge j5 is the same as shown in FIG. 2 fbl. At point B, a stable state is reached again. In addition, between points A and B, the elastic plate 2 is compressed from both ends and is in an elastically deformed state. Therefore, the elastic restoring force of the elastic plate 12 exerts a force on the lid body 3 in the opening/closing direction. The effect of force on 3 changes at the midpoint C between A and B, where the elastic plate 12 deforms maximum, and at the midpoint C between A and B, where the second hinge I3 passes through this point.
A force acts on the lid body 3 in the opening direction between B and in the closing direction between A and C.

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

1 to 6 show one embodiment of the present invention, and in the figures, 1 indicates a cap-like object consisting of a base body 2 and a lid body 3. This cap-like object is formed by integral molding of synthetic resin. ing.

The base body 2 has a cylindrical shape with an open lower end surface, and has a spout 6 formed in a top wall 5 extending from the upper end edge of the peripheral wall 4 . Further, a trumpet-shaped spout 7 is erected from the soil surface of the top wall around the spout 6. Furthermore, the outer peripheral edge of the top wall 5 is recessed downward to provide an upwardly facing stepped portion 8 around it. The lid body 3 has a cylindrical shape with a top wall 10 extending from the upper edge of the peripheral wall 9 and an open lower end surface.

The rear upper end of the top wall 5 of the base body 2 and the rear lower end of the peripheral wall 9 of the lid body 3 are rotatably connected via a first hinge 11.
The lower end edge of the peripheral wall 9 is configured to fit into the upwardly facing stepped portion 8 of the base body 2 so as to be openable and closable. Also, a pair of elastic plates 12.1 are housed on both sides of the first hinge 11 and within the lid body 3.
2 are provided. This elastic plate has a vertically long S-shaped side surface that is elastically deformed by compression from both ends, and its lower end is attached to the lower end of the peripheral wall 9 of the lid body 3 located in front of both sides of the first hinge 11 to the second hinge 13. They are connected to each other via 13.

On the other hand, the ends of the elastic plate 12 are a pair of vertically elongated rectangular plate-shaped struts 14 and 14 that are erected at positions in front of both sides of the first hinge 11 on the upper surface of the upwardly facing step 8 at the rear of the base body 2.
are connected to the upper ends of each via a third hinge 15.15.

In this embodiment, as described above, the side surface of the elastic plate has a vertically elongated S-shape, but the shape is not limited to this, and as in the embodiments shown in FIGS. is 3
It may be a letter-shaped elastic plate or any other shape (,
In short, it only needs to be elastically deformed by compression from both ends.

Further, in this embodiment, each support column 14.14 has a vertically long rectangular plate shape as described above, but is not limited to this. For example, as in the embodiment shown in FIGS. 7 to 1O, It may be an elastic support in the shape of an arcuate plate whose side surface bends backwards, or it may be in any other shape, as long as one end of the elastic plate can be connected in front of and above the second hinge via the third hinge. In the case of the embodiments shown in FIGS. 7 to 10, since each support column can be elastically deformed when the lid is opened and closed, the load on the hinges at both ends of the elastic plate is reduced, and as a result, the durability of the hinge portion is improved as described above. Although this is improved compared to the example, the size and position of the spout are limited compared to the above example because the top wall occupies more space.

"Effects of the Invention" As described above, according to the present invention, when the lid is closed, the elastic plate is hidden inside the lid and cannot be seen, so the appearance is different from that of the conventional three-point hinge mechanism. There is an advantage that a cap-like product with good commercial value can be obtained.

Furthermore, since it can be formed by integral molding of synthetic resin, it has the advantage of being inexpensive to manufacture.

[Brief explanation of the drawing]

1 to 6 show one embodiment of the present invention, FIG. 1 is a perspective view, FIG. 2 is an explanatory view for explaining the elastic reversing mechanism, FIG. 3 is a perspective view of the lid in an open state, and FIG. The figure is a partially cutaway side view with the lid open, Figure 5 is a plan view with the lid open, Figure 6 is an enlarged plan view of the main parts showing the connection part with the lid open, and Figures 7 to 10 are Another embodiment of the present invention is shown, and FIG. 7 is a perspective view with the lid opened;
FIG. 8 is an explanatory view for explaining the elastic reversal mechanism, FIG. 9 is a side view of the lid in an open state, and FIG. 10 is a plan view of the lid in an open state. 2... Base body, 3... Lid body, 11... First hinge,
12... Elastic plate, 13... Second hinge, 14...
Pillar, 15...Third hinge Fig. 4

Claims (1)

[Claims] A cap-like article in which a base body 2 having a top wall with a spout and a lid body 3 for opening and closing the spout are connected so that the lid body 3 can rotate relative to the base body 2 at each rear part. The rear lower end of the lid body 3 is connected to the rear upper end via a first hinge 11, and the first hinge 11 on the upper surface of the top wall of the base body 2
A pair of struts 14, 14 are erected at the front positions on both sides, and the lower ends of a pair of compressively elastically deformable elastic plates 12, 12 provided on both sides of the first hinge 11 and inside the lid body 3 are connected to the first hinge 11. The other end of each elastic plate 12 is connected to the rear lower end of the lid body 3 in front of the hinge 11 via second hinges 13, 13, and the other end of each elastic plate 12 is
A cap-shaped article, characterized in that it is connected to the upper ends of the above-mentioned pillars 14, 14 located forward and above the hinges 13, 13 via third hinges 15, 15, respectively.