JP4297228B2 - Covering lid opening and closing device for cap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing device for a cap, and more particularly to a cover opening / closing device for a cap provided with a lid engaging / disengaging mechanism provided with a wedge-shaped projecting piece for opening the cover and a hinge mechanism equipped with a spring for opening the cover. .
[0002]
[Problems to be solved by the invention]
2. Description of the Related Art Conventionally, as a hinge-type opening / closing device for a cap cover in a container, a torsion spring is wound around a hinge pin and the lid is automatically opened by a spring force.
[0003]
However, in order to enhance the sealing performance of the container, when a stopper fitted to the outlet hole provided on the top plate of the cap is attached to the lower surface of the cover lid, and the stopper is to be sealed with the stopper, Since a fixed tightening allowance is provided between the outlet and the extraction hole, there is a problem that the force for releasing the engagement between the plug and the extraction hole is not sufficient only by the spring force.
Therefore, at the beginning of opening the lid, it is necessary to open the covering lid with fingers, and there is a problem that the covering lid cannot be opened and closed completely automatically.
[0004]
The present invention aims to solve the above-mentioned problem, and in the initial stage of opening the lid, by pressing the lid locking member, the fitting of the cover lid and the cap spout is removed, and thereafter An object of the present invention is to provide a covering lid opening / closing device in a cap that automatically opens the covering lid with the force of a spring for opening the lid.
[0005]
[Means for solving the problems]
In order to solve the above-described problems, the present invention provides a cap, a lid opening / closing device for a cap, a cap that is screwed into a mouth tube portion of the container and provided with a spout on a top plate , and an attachment to the cap In a container comprising a cover lid provided with a plug that fits into the spout on the lower surface of the top wall , the cap has a hinge mechanism that urges the cover cover in the opening direction by attaching a spring, and a pressing operation. And a lid locking member that opens the cover lid. The lid locking member is formed on a support plate erected on an edge of the support wall of the cap and on an outer surface of the support plate. The top of the support lid, and the top part of the cover lid is opposed to the hinge mechanism. A window hole is drilled along the opposite peripheral wall, and the engagement is provided at the lower end of the peripheral wall facing the window hole. An engagement piece that engages with the hook is projected, and when the lid locking member is pressed, the wedge-shaped projecting piece engages the lower surface of the inner edge of the window hole and pushes the cover lid upward by a wedge action, A configuration is adopted in which the locking hook is removed from the engaging piece, and the covering lid is opened to open the spout .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
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 lid, D is a hinge mechanism, and E is a lid engagement / disengagement mechanism.
The container A has a mouth tube portion 1 and a body portion 2, and a screw 3 is screwed on the outer periphery of the mouth tube portion 1.
[0007]
As shown in FIG. 2, the cap B includes a top plate 4, an outer tube 5 that is suspended from the periphery of the top plate 4, and a screwed tube 6 that is suspended from the lower surface of the top plate 4 inside the outer tube 5. It is made up of.
In the center of the top plate 4, a spout 8 having a mouth edge 7 protruding from the top surface of the top plate 4 is provided.
[0008]
Cuts 9 are formed in the top plate 4 and the outer cylinder 5 at predetermined locations around the top plate 4 to attach the hinge mechanism D. From the edge of the top plate 4 facing the notch 9, the inner wall 10 and the front and rear Front and rear side walls 11a and 11b are vertically suspended, and a step wall 12 connecting the side walls 10 and 11 and the upper edge of the notch 9 of the outer cylinder 5 is connected to the lower ends of the side walls 10 and 11, respectively.
A spring support hole 13 is formed in the inner side wall 10, and a pin support hole 14 penetrating the side wall and the outer cylinder 5 is formed in the front and rear side walls 11 a and 11 b.
[0009]
A notch 15 for a lid engaging / disengaging mechanism extending from the outer peripheral end of the top plate 4 to the screwed cylinder 6 is formed at a position opposite to the notch 9 of the top plate 4, and from the edge of the top plate 4 facing the notch 15. Front and rear side walls 16a and 16b extending to the lower end of the screwed cylinder 6 are suspended, and a step wall 17 connecting the front and rear side walls 16a and 16b and the upper edge of the notch 15 of the outer cylinder 5 is connected to the lower end. The wall 17 is a support wall for the lid locking member 20.
[0010]
The inward end of the step wall 17 is located at approximately the middle between the outer cylinder 5 and the screwed cylinder 6 and is a straight edge 21 extending in the front-rear direction. A support plate 22 is erected in such a manner that it can be bent between the front and rear side walls 16a, 16b in a radial direction with the portion as an axis.
A pressing portion 23 is formed on the outer surface of the support plate 22, and a wedge-shaped projecting piece 24 is provided on the inner end of the upper end portion of the support plate 22. A hook 26 is projected.
The wedge-shaped projecting piece 24 and the locking hook 26 constitute a locking portion 20 a of the lid locking member 20.
[0011]
A screw 27 that is screwed into the screw 3 of the container mouth tube portion 1 is formed on the inner periphery of the screwed tube 6 so that the cap B can be screwed to the container A.
[0012]
As shown in FIG. 3, the cover lid C is composed of a top wall 30 that covers the top plate 4 of the cap B and a side peripheral wall 31, and is fitted to the spout 8 with a certain tightening margin at the center of the top wall 30. A mating plug 32 is projected.
An attachment piece 33 of the hinge mechanism D is suspended from a top wall 30 at a predetermined position of the cover lid C, and a pin insertion hole 34 is formed at a predetermined position of the attachment piece 33.
A spring receiver 35 projects from one side of the front and rear side surfaces of the mounting piece 33, and the outer peripheral surface thereof is the same as the outer peripheral surface of the mounting piece 33.
[0013]
As shown in FIGS. 4 and 5, the mounting piece 33 and the spring receiver 35 on the side surface of the mounting piece 33 can swing between the front and rear side walls 11 a and 11 b of the notch 9 of the cap B. 34, the front and rear side walls 11a, 11b, and the pin support holes 14a, 14b penetrating the outer cylinder 5 are fitted with hinge pins 36 so that the cover C can be rotated via the attachment piece 33. .
[0014]
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 is wound around a torsion spring 37 that elastically contacts the spring receiver 35, so that the cover C is opened in the opening direction. It is energized to rotate.
A hinge mechanism D of the cover C is formed by the mounting piece 33 protruding from the spring receiver 35, the hinge pin 36 wound around the torsion spring 37, and the front and rear side walls 11a and 11b formed with the pin support holes 14. .
[0015]
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, an engagement piece 42 that protrudes inward from the side peripheral wall 31 and has a lower surface that engages with the locking hook 26 of the lid locking member 20 as an inclined surface 41 protrudes. The lower end of the inner edge 43 of the hole 40 is engaged with the wedge-shaped projecting piece 24.
[0016]
As shown in FIGS. 1 and 5, the locking portion 20 a including the wedge-shaped protruding piece 24 and the locking hook 26 of the lid locking member 20 is loosely fitted in the window hole 40 so as to be swingable. The wedge-shaped protruding piece 24 is formed at a position where it can be inserted between the top plate 4 of the cap B and the top wall 30 of the cover lid C.
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 lid C by inward pressing. Has been.
The lid engaging member 20, the window hole 40 of the cover lid C, the engagement piece 42, and the like constitute a cover engagement / disengagement mechanism E for the cover lid C.
[0017]
Next, the opening operation of the cover C will be described with reference to FIGS.
First, the cap B with the cover C closed by screwing the threaded tube 6 of the cap B into the mouth tube portion 1 of the container A containing the contents is screwed onto the container A.
[0018]
When closing the cover C, when the cover C is pressed against the torsion spring 37, the inclined surface 41 on the lower surface of the engagement piece 42 of the window hole 40 is engaged with the inclined surface 25 on the upper surface of the locking hook 26. When the support plate 22 is bent so that the locking portion 20a of the lid locking member 20 is covered and pushed out toward the center of the lid C, and the engagement piece 42 gets over the locking hook 26, the support plate of the lid locking member 20 22 is restored by its elasticity, and the locking hook 26 is engaged with the engaging piece 42 and closed.
At the same time, the plug body 32 of the cover C fits into the spout 8 of the top plate 4 of the cap B and seals the container A (see FIG. 1).
[0019]
When opening the cover lid C, when the presser portion 23 of the cover locking member 20 of the cover engagement / disengagement mechanism E is pushed with a fingertip, the cover locking member 20 swings in the window hole 40 toward the center of the cover cover C. 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 lid C, and the cover cover C is pushed up against the interference between the plug 32 and the spout 8 and the plug The fitting between the body 32 and the spout 8 is removed (see FIG. 6).
When the wedge-shaped projecting piece 24 is pushed into the cap top plate 4 and the top wall 30 of the cover lid C by a predetermined amount, the engagement piece 42 is detached from the locking hook 26, and the cover cover C is a torsion spring 37 of the hinge mechanism D. Is automatically opened (see FIG. 5).
[0020]
In the embodiment, the hinge mechanism of the cover lid is opened and closed using a hinge pin wound with a torsion spring , but a well-known three-point hinge can also be used as the hinge mechanism of the cover lid.
[0021]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists the following effect.
Since the lid locking member is provided with a wedge-shaped protruding piece, pressing the lid locking member pushes the wedge-shaped protruding piece between the cap top plate and the top wall of the cover lid, and plugs the top wall into the cap top plate. It can be reliably removed from the spout, and at the same time, the engagement piece and the locking hook are disengaged, and the cover lid can be automatically opened.
[Brief description of the drawings]
FIG. 1 is a cross-sectional front view of a container of the present invention.
2A is a plan view, FIG. 2B is a cross-sectional front view, and FIG. 2C is a bottom view. FIG. 3 is an explanatory view of a cover lid, and FIG. FIG. 4B is a bottom view. FIG. 4 is a side view of the container.
FIGS. 5A and 5B are explanatory views of the container when the cover lid is opened, in which FIG. 5A is a cross-sectional front view, and FIG. 5B is a plan view in which a part of the cover lid is taken along a line AA in FIG. .
FIG. 6 is an explanatory diagram of a state in which a lid locking member of the lid engaging / disengaging mechanism is pressed.
[Explanation of symbols]
A Container B Cap C Covering lid D Hinge mechanism E Lid engaging / disengaging mechanism 1 Mouth cylinder part 2 Body part 3 Screw 4 Top plate 5 Outer cylinder 6 Screwed cylinder 8 Outlet 9, 15 Notch 10 Inner side walls 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-like protruding piece 25 Inclined surface 26 Locking hook 30 Top wall 31 Side peripheral wall 32 Plug body 33 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)

A container, a cap screwed to the mouth tube portion of the container and provided with a spout on the top plate , and a cover lid attached to the cap and provided with a plug body fitted to the spout on the bottom of the top wall In the container,
The cap includes a hinge mechanism that biases the cover lid in the opening direction by attaching a spring, and a lid locking member that opens the cover lid by pressing operation.
The lid locking member includes a support plate erected on the edge of the support wall of the cap, a pressing portion formed on the outer surface of the support plate, and a wedge-shaped protrusion formed on the upper end portion of the support plate and protruding inward. It consists of a locking part with a piece and a locking hook protruding outward,
A window hole is formed in the top wall of the cover lid along the peripheral wall on the opposite side facing the hinge mechanism, and an engagement piece that engages with the locking hook protrudes from the lower end of the peripheral wall facing the window hole. Has been
When the lid locking member is pressed, the wedge-shaped protruding piece engages with the lower surface of the inner edge of the window hole and pushes the cover lid upward by the wedge action, the locking hook is removed from the engagement piece, and the cover lid is opened. A covering lid opening and closing device for a cap, wherein the cap is opened to open a spout .

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