JP2000219253A - Covering lid open and close device in cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To render a covering lid automatically openable by thrusting a wedged projection strip between the top board of a cap and apex wall of a covering lid through compression of a lid joining member, and positively removing a plug body of the apex wall from a spout of the cap top board, and also performing disconnecting a connection strip from a joint hook. SOLUTION: When a covering lid is closed, a connection hook 26 is joined to a joint value 42. At the same time, a plug 32 of the covering lid C is fitted in the top board pour 8 of a cap B to seal the vessel A. On the other hand, when the covering lid C is opened, by pushing a press part 23 by a finger to allow a lid joint member 20 to swing in the central direction of the covering lid C, a wedge strip member 24 is thrust between the top board of the cap B and the apex wall 30 of the covering lid C. Following this, the covering lid C is pressed downward against an interference between the plug body 32 and the spout 8 so that fitting is disjoined between the plug body 32 and pour 8. After that, as the wedge projection strip 24 is thrust at a predetermined degree, joint strip 42 is disconnected from the connection hook 26, as a result, the covering lid C is automatically opened by a torsion spring 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover lid opening / closing device for a cap, and more particularly, to a cover lid opening / closing mechanism having a wedge-shaped projecting piece for opening the cover lid, and a hinge mechanism equipped with a spring for opening the lid. The present invention relates to a cover opening / closing device for a cap.

[0002]

As a hinge-type opening / closing device for a lid placed on a cap of a container, a torsion spring is wound around a hinge pin so that the lid is automatically opened by a spring force. Have been.

[0003] However, in order to improve the sealing performance of the container, when a stopper is fitted on the lower surface of the cover to be fitted into the spout hole provided in the cap top plate, and the spout hole is to be sealed with the stopper, Since the fitting is performed with a certain interference between the plug and the pouring hole, there is a problem that the spring force alone is not enough to release the fitting between the plug and the pouring hole. For this reason, at the beginning of opening the lid, the lid must be opened with fingers, and there is a problem that the lid cannot be opened and closed completely automatically, which is troublesome.

An object of the present invention is to solve the above-mentioned problem by disengaging the plug of the cover and the spout of the cap by pressing the cover locking member at the initial stage of opening the cover. It is another object of the present invention to provide a cover lid opening / closing device for a cap in which the cover is automatically opened by the force of a lid opening spring.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides, as a cover opening / closing device for a cap, a container, a cap screwed to a mouthpiece of the container, and a cap attached to the cap. In the container comprising the covered lid, the cap includes a hinge mechanism configured to urge the covered lid in the opening direction by attaching a spring, and a lid locking member that opens the covered lid by a pressing operation. The lid locking member includes a support plate erected on an edge of a support wall of the cap, a pressing portion formed on an outer surface of the support plate, and a support plate formed on an upper end portion of the support plate and protruding inward. A locking portion with a wedge-shaped protruding piece and a locking hook protruding outward, a window hole is formed in the top wall of the cover along the peripheral wall opposite to the hinge mechanism,
At the lower end of the peripheral wall facing the window hole, an engaging piece that engages with the locking hook protrudes, and when the lid locking member is pressed, the wedge-shaped projecting piece engages with the inner edge of the window hole. A configuration is adopted in which the cover is pushed upward to release the locking hook from the engagement piece.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, A is a container, B is a cap, C is a cover, D is a hinge mechanism, and E is a lid engaging / disengaging mechanism. The container A has a mouthpiece 1 and a body 2, and a screw 3 is screwed around the mouthpiece 1.

[0007] As shown in FIG.
An outer cylinder 5 suspended from a peripheral edge of the top plate 4;
And a screwing cylinder 6 vertically provided from the lower surface of the top plate 4. At the center of the top plate 4, a spout 8 having a lip 7 protruding from the upper surface of the top plate 4 is provided.

A cut 9 is formed in the top plate 4 and the outer cylinder 5 to attach a hinge mechanism D at a predetermined location on the periphery of the top plate 4, and an inner wall is formed from the edge of the top plate 4 facing the notch 9. The front and rear side walls 11a and 11b facing the front and rear are vertically provided, and each side wall 1 is provided.
At the lower ends of 0 and 11, step walls 12 connecting the side walls 10 and 11 and the upper edge of the cut 9 of the outer cylinder 5 are continuously provided. Inner wall 1
0 is provided with a spring support hole 13, and the front and rear side walls 1 are provided.
Pin support holes 1a and 11b penetrate the side wall and the outer cylinder 5.
4 are drilled.

At a position opposite to the cut 9 of the top plate 4, a cut 15 for a lid engaging / disengaging mechanism extending from the outer peripheral end of the top plate 4 to the screwing cylinder 6 is formed, and the top plate 4 facing the cut 15 is formed. Front and rear side walls 16a and 16b extending from the end edge to the lower end of the screwing cylinder 6 are provided vertically, and a step wall 17 connecting the front and rear side walls 16a and b and the cut 15 of the outer cylinder 5 is connected to the lower end thereof. The step wall 17 is a support wall for the lid locking member 20.

The inner end of the step wall 17 is located substantially at the center between the outer tube 5 and the screwing tube 6 and has a linear edge 21 extending in the front-rear direction. A support plate 22 that is bent in the radial direction around the edge connection portion and that can swing between the front and rear side walls 16a and 16b is provided upright. On the outer surface of the support plate 22,
A holding portion 23 is formed, and at the upper end of the support plate 22,
A wedge-shaped projecting piece 24 is provided on the inner side, and a locking hook 26 having an upper surface as an inclined surface 25 is provided on the outer side thereof. A locking portion 20 a of the lid locking member 20 is configured by the wedge-shaped protruding piece 24 and the locking hook 26.

A screw 27 that is screwed into the screw 3 of the container mouth tube portion 1 is provided on the inner periphery of the screwing tube 6 so that the cap B can be screwed to the container A.

As shown in FIG. 3, the cover C is composed of a top wall 30 and a side peripheral wall 31 which cover the top plate 4 of the cap B. A plug body 32 that fits with a margin protrudes. At a predetermined position of the cover C, a mounting piece 33 of the hinge mechanism D is vertically provided from the top wall 30. A pin insertion hole 3 is provided at a predetermined position of the mounting piece 33.
4 are drilled. A spring receiver 35 projects from one of the front and rear side surfaces of the mounting piece 33, and its outer peripheral surface is the same as the outer peripheral surface of the mounting piece 33.

As shown in FIGS. 4 and 5, the mounting piece 33 and the spring receiver 35 on its side face can swing between the front and rear side walls 11a and 11b of the cut 9 of the cap B.
A hinge pin 36 is inserted into the pin insertion hole 34 and the pin support holes 14a and 14b penetrating the front and rear side walls 11a and 11b and the outer cylinder 5, and the cover C can rotate through the mounting piece 33. It has become.

One end of the hinge pin 36 is supported by a spring support hole 13 formed in the inner wall 10 of the cap, and the other end of the hinge pin 36 is wound around a torsion spring 37 elastically contacting a spring receiver 35, and the cover C is opened. It is biased to rotate in the lid direction. The hinge mechanism D of the cover C is formed by the mounting piece 33 having the spring receiver 35 projecting therefrom, the hinge pin 36 having the torsion spring 37 wound thereon, and the front and rear side walls 11a and 11b having the pin support holes 14 formed therein. .

As shown in FIG. 3, a window hole 40 is formed along the side peripheral wall 31 at a position opposite to the mounting piece 33 of the top wall 30 of the cover C. Below the window hole 40, there is provided an engagement piece 42 projecting inward from the side peripheral wall 31 and having an inclined surface 41 as a lower surface which engages with the locking hook 26 of the lid locking member 20. The lower end of the inner edge 43 of the hole 40 is adapted to be engaged with the wedge-shaped projecting piece 24.

As shown in FIG. 1 and FIG.
The locking portion 20a including the wedge-shaped protruding piece 24 and the locking hook 26 is swingably loosely fitted in the window hole 40, and the wedge-shaped protruding piece 24 is connected to the top plate 4 of the cap B. The cover C is formed at a position where it can be inserted between the cover C and the top wall 30. The locking hook 26 is formed so as to be disengaged from the engaging piece 42 of the window hole 40 while the wedge-shaped protruding piece 24 is inserted between the top plate 4 and the top wall 30 of the cover C by being pressed inward. Have been. A cover locking member 20 and a window hole 40 of the cover C,
A lid engaging / disengaging mechanism E of the lid C is constituted by the engagement pieces 42 and the like.

Next, the opening operation of the cover C will be described with reference to FIGS. First, the cap tube B of the cap B is screwed to the cap unit 1 of the container A containing the contents, and the cap B with the cover C closed is screwed to the container A.

When closing the cover C, the cover C is pressed against the torsion spring 37, and the engaging piece 42 of the window hole 40 is pressed.
The inclined surface 41 on the lower surface is the inclined surface 25 on the upper surface of the locking hook 26.
And the support plate 22 is bent so as to cover the locking portion 20a of the lid locking member 20 and push it toward the center of the lid C.
2 moves over the locking hook 26, the support plate 22 of the lid locking member 20 is restored by its elasticity,
Is engaged with the engagement piece 42 and the lid is closed. At the same time, the plug 32 of the cover C fits into the spout 8 of the top plate 4 of the cap B to seal the container A (see FIG. 1).

When the cover C is opened, when the pressing portion 23 of the cover locking member 20 of the cover engaging / disengaging mechanism E is pressed with a fingertip, the cover locking member 20 moves in the window hole 40 toward the center of the cover C. Oscillating, the wedge-shaped projecting piece 24 is pushed between the top plate 4 of the cap B and the top wall 30 of the cover C, and the cover C is closed against the interference fit between the plug 32 and the spout 8. Push up to release the plug 32 from the spout 8 (see FIG. 6). When the wedge-shaped projecting piece 24 is pushed by a predetermined amount between the cap top plate 4 and the top wall 30 of the cover C, the engaging piece 42 is disengaged from the locking hook 26, and the cover C is torsion spring 37 of the hinge mechanism D. Automatically opens (see FIG. 5).

In the above-described embodiment, the hinge mechanism of the cover is opened and closed by using a hinge pin wound with a twist spring. However, a well-known three-point hinge may be used as the hinge mechanism of the cover. .

[0021]

Since the present invention is configured as described above, it has the following effects. Since the lid locking member is provided with the wedge-shaped projecting piece, the lid locking member is pressed to push the wedge-shaped projecting piece between the cap top plate and the top wall of the lid,
The plug of the top wall can be securely removed from the spout of the cap top plate, and at the same time, the engagement between the engagement piece and the locking hook is released,
The lid can be opened automatically.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a container of the present invention.

FIG. 2 is an explanatory view of a cap, wherein (a) is a plan view and (b)
Is a cross-sectional front view, and (c) is a bottom view.

FIGS. 3A and 3B are explanatory views of a cover, and FIG.
(B) is a bottom view

FIG. 4 is a side view of the container.

5A and 5B are explanatory views of the container when the cover is opened, wherein FIG. 5A is a cross-sectional front view, and FIG. 5B is a plan view in which a part of the cover is sectioned along line AA in FIG. .

FIG. 6 is an explanatory view of a state in which a lid locking member of the lid engaging / disengaging mechanism is pressed.

[Explanation of symbols]

 Reference Signs List A container B cap C cover lid D hinge mechanism E lid engaging / disengaging mechanism 1 mouthpiece section 2 body section 3 screw 4 top plate 5 outer cylinder 6 screwing cylinder 8 outlet 9, 15 cut 10 inner wall 11a, b, 16a, b Front and rear side walls 12, 17 Step wall 14a, b Pin support hole 20 Lid locking member 20a Locking portion 22 Support plate 23 Pressing portion 24 Wedge-shaped protruding piece 25 Inclined surface 26 Locking hook 30 Top wall 31 Side peripheral wall 32 Plug 33 Mounting Piece 34 pin insertion hole 35 spring receiver 36 hinge pin 37 torsion spring 40 window hole 41 inclined surface 42 engagement piece 43 edge

Claims (1)

[Claims] 1. A container comprising a container, a cap screwed to a mouthpiece of the container, and a cover attached to the cap, wherein the cap is placed in a cover opening direction by mounting a spring. A hinge mechanism configured to be urged, and a lid locking member configured to open the cover by pressing operation, wherein the lid locking member is provided on a support wall provided on an edge of a support wall of the cap. A plate, and a holding portion formed on an outer surface of the support plate,
A locking portion provided at the upper end of the support plate and having a wedge-shaped protruding piece protruding inward and a locking hook protruding outward; and a top wall of the cover, on the opposite peripheral wall facing the hinge mechanism. A window hole is formed along the opening, and an engagement piece that engages with the locking hook projects from a lower end of the peripheral wall facing the window hole. When the lid locking member is pressed, a wedge-shaped projection piece is formed. Wherein the cover hook is disengaged from the engaging piece by engaging the inner edge of the window hole to push the cover upward.