JPH1099126A - Airtight cosmetics container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an airtight cosmetics container by which a high airtightness can be kept for a long period, and a covering plate can be opened and closed by the soft touch operation. SOLUTION: A cover body 12 is removably mounted on an opening 18a of a container body 18 through a sealing material 19, and a covering plate 16 for covering an opening 12a of a ceiling in such manner that it can be opened and closed, is screwed on the cover body 12. A packing material 20 which seals inside of the container body 18 by closely kept into contact with a peripheral edge part of the opening of the cover body 12 in a locked condition, is installed on a rear face of the covering plate 16, and a hook 16a projected from a rear face of the center of the point of the covering plate 16, is engaged with an engagement projection 12d formed on a depth face of a recessed part 30 above on the front central upper face of the cover body 12, to be locked. The engagement face 36 of the hook 16a and the engagement projection 12d, is almost horizontally formed, so that the elastic recovering force of the packing material 20 acts on the engagement face 36 in an almost vertical direction. The recessed part 30 comprises a push piece 40 of which a rear end 40a is extended backward under the lower part of the hook 16a, and the front end 40b is extended obliquely upward, in such manner that the rear end 40a is engaged with a rear face of the hook 16a when the front end 40b is pushed downward to be rocked, thereby the hook 16a is pushed forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight cosmetic container, and more particularly to an airtight cosmetic container having good airtightness and easy opening and closing.

[0002]

2. Description of the Related Art Conventionally, as a hermetically sealed cosmetic container, a cylindrical lid body having an opening at the top is screwed onto a mouth of a bottomed cylindrical container body while maintaining a sealing property. It is known that the opening is covered with a cover plate hinged to the rear end so as to be openable and closable, and a packing material for obtaining airtightness is interposed between the periphery of the opening and the back surface of the cover plate. Have been.

[0003] In this type of hermetic cosmetic container, the lid body and the lid plate are engaged with each other by a hook mechanism provided between their front ends to maintain the locked state of the lid plate, and As a mechanism for releasing the lock by the hook mechanism, it is common to provide a lever at the front end of the lid main body having a pressing operation part at one end and the other end abutting against the back surface of the lid plate. Has become.

That is, the release mechanism has a structure in which the engagement of the hook mechanism is released by rotating the lid plate while pushing the lid plate upward, that is, the engagement surface of the hook mechanism is formed as an inclined surface, The hook portion of the hook mechanism is elastically deformed along the inclined surface by the upward turning force to release the engagement.

[0005]

By the way, in such an airtight cosmetic container, in order to maintain good airtightness inside the container body, the packing material is sufficiently compressed in a locked state of the lid plate. To keep it squashed,
Then, on the contrary, the elastic restoring force of the packing material increases, and the force for rotating the lid plate upward also increases.

For this reason, when the engaging surface of the hook mechanism is formed on the inclined surface as in the conventional airtight cosmetic container, the elastic restoring force of the packing is constantly transmitted to the hook portion via the inclined surface. Then, the hook portion is elastically deformed in the releasing direction and the lid plate is pushed back, so that it is difficult to maintain good airtightness, and the hook portion is easily deformed with time. When the hook portion is deformed with time, the packing material cannot be sufficiently crushed by the lid plate in the locked state, and the good airtightness is further impaired. Therefore, in the above-mentioned conventional airtight cosmetic container, there is a problem that it is difficult to secure good airtightness, and it is difficult to maintain good airtightness for a long period of time.

In order to solve this problem, it is necessary to increase the thickness of the hook portion or to reduce the inclination angle so that the elastic restoring force of the packing material acts on the engaging surface as vertically as possible. Conceivable. However, in this case, even if an attempt is made to release the lock by rotating the lid plate upward with a lever, the hook portion is unlikely to be elastically deformed, causing a problem in terms of opening operability.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an airtight cosmetic container which can secure good airtightness for a long period of time and can open and close a lid plate with a light operability. It is in.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a container body, which is provided at the mouth of the container body with a sealing property so as to be detachable and has an opening formed in a top part. A lid body, a lid plate hinged to a rear portion of the lid body and covering the opening so as to be openable and closable, and a crimped state between the lid plate and an opening peripheral portion of the lid body in a locked state of the lid plate. A sealing material interposed in the container body to seal the inside of the container body, an engagement projection provided on the inner surface of the recess formed in the upper surface at the center of the front end of the cover body, and a center of the tip of the cover plate. An airtight cosmetic container having a hook protruding from the back surface and engaging with the engaging projection to lock the engaging projection, wherein the packing material is pressurized to substantially move between the engaging surface of the hook and the engaging projection. The engaging surface is formed substantially horizontally so as to be substantially vertical with respect to the elastic restoring force acting in the vertical direction. The rear end extends below the hook and extends rearward, and the front end extends obliquely upward, and swings by a downward pressing operation of the front end so that the rear end engages the rear surface of the hook and engages with the hook. A push piece for pushing the hook forward was provided.

Therefore, in the airtight cosmetic container of the present invention, when the lid plate is closed with respect to the lid body, the elastic restoring force due to the compression of the packing material is reduced by the engagement of the locking portion formed by the hook and the engaging projection. Since it acts substantially perpendicular to the surface, there is no component of elastic restoring force that pushes the hook in the unlocking direction, so the hook is elastically deformed and the lid plate is pushed back in the opening direction. Nothing. For this reason, the lid plate can be locked to the lid body in a crimped state in which the packing material is sufficiently crushed, and good airtightness can be secured. Further, since there is no occurrence of temporal deformation due to the elastic deformation of the hook, good airtightness can be maintained for a long time.

When the front end of the push piece is pressed down, the rear end directly engages with the rear surface of the hook and swings forward to push the hook forward, so that the pressing force stops. It is transmitted as a lock release force without waste, and the lock can be reliably released with a light operation force.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 8 show an embodiment of the hermetic cosmetic container of the present invention, FIG. 1 is a perspective view showing a main part partially exploded, FIG. 2 is a sectional view showing a state where a cover plate is closed,
FIG. 3 is a cross-sectional view of a state where the lid plate is opened, FIG. 4 is an enlarged front view of a main part showing a state where the lid plate is locked, FIG. 5 is an enlarged cross-sectional view of a main part showing a state where the lid plate is closed, and FIG. FIG. 8 to FIG. 8 are main part enlarged sectional views showing a state in which the lock is released and the lid plate is opened.

As shown in FIGS. 1 to 3, the hermetically sealed cosmetic container 10 of this embodiment has a container body 18 having a cylindrical shape with a bottom and accommodating a cream or the like cosmetic therein. 1
8 is detachably provided at the mouth 18a, and has an opening 12 at the top.
and a lid plate 16 hinged to the rear end of the lid body 12 via a hinge 14.

The lid body 12 has a cylindrical shape, and a female screw portion 12b formed on the inner peripheral surface on the lower side thereof is
8a is screwed and mounted on a male screw portion 18b formed on the outer peripheral surface of the outer peripheral surface 8a. The upper portion of the female screw portion 12b has a reduced inner diameter, and the upper end surface 18c of the opening 18a of the container body 18 comes into contact with the reduced-diameter step end surface 12c via a sealing material 19, and this seal is formed. The sealing property between the container main body 18 and the lid main body 12 is ensured by the material 19.

The hinge 14 has a concave portion 14a formed at the center of the rear end of the lid main body 12, and a convex portion 14b formed at the center of the rear end of the cover plate 16 is fitted into the concave portion 14a. The hinge pin 14c is inserted from both sides across the bridge 14b. Further, a hook 16a is protruded from the center of the tip of the cover plate 16, and this hook 16a
When the cover plate 16 is closed, the cover plate 16 is engaged with an engaging protrusion 12d provided at the center of the front end of the cover main body 12 to lock the both. In addition,
The details of this locking structure and its release mechanism will be described later.

A packing material 20 is attached to the back surface 16c of the cover plate 16, and the packing material 20 is press-fitted between the cover plate 16 and the peripheral edge of the opening of the cover body 12 when the cover plate 16 is locked. Thus, the inside of the container body 18 is sealed. At the center of the packing material 20, a holding plate 22 is arranged so as to overlap with the packing material 20, and an opening 20a formed at the center of the packing material 20 is formed.
To the cylindrical projection 2 projecting from the center of the holding plate 22.
2a, and the cylindrical projection 22a is attached to the back surface 1 of the lid plate 16.
The packing material 20 is attached to the cover plate 16 by press-fitting and fixing to a convex portion 16d projecting from 6c.

An outer peripheral portion 20b of the packing material 20 projects from the outer periphery of the holding plate 22.
In the outer peripheral portion 20b of the packing material 20 protruding from the second, the lower surface of a portion that enters a predetermined distance inward from the outer periphery,
A tubular annular projection 24 is integrally provided along the inner peripheral surface of the opening at the upper end of the lid body 12. The annular projection 24 includes
In a state in which the lid plate 16 is merely closed so as to cover the lid main body 12, as shown in FIG. 7, the gap is formed such that a slight gap δ is provided between the lid main body 12 and the inner peripheral surface of the opening of the lid main body 12. Is done. This gap δ may be as small as possible. Further, the outer peripheral portion 2 of the packing material 20 is provided on a portion of the packing material 20 which is located inward of a portion where the annular protrusion 24 is formed.
A hinge 26 is formed as a movable joint that makes 0b movable. Further, on the lower surface of the outer peripheral portion 20b of the packing material 20, a convex portion 28 as a tilting mechanism for tilting the outer peripheral portion 20b of the packing material 20 upward is projected outwardly of the portion where the annular protrusion 24 is formed. It is. This convex part 2
8 can be formed in an annular shape along the circumferential direction of the lid main body 12,
Also, a plurality of them may be formed at intervals along the circumferential direction. Further, on the back surface 16c of the cover plate 16 corresponding to the outer peripheral portion 20b of the packing material 20, the outer peripheral portion 20b is provided.
A concave portion 16e is formed as a space that allows the movement of.

Incidentally, in order to ensure good sealing performance of the cover plate 16 in the locked state, the packing material 20 is crushed with a certain force or more, and at that time, the packing material 20 is crushed.
It is necessary to prevent the locked state of the cover plate 16 from being loosened by the elastic force of the above. In addition, it is necessary to ensure good operability of unlocking when the cover plate 16 is opened. For this reason, hook 1
The structure of the locking portion formed by 6a and the engaging projection 12d and the release mechanism thereof are configured as follows.

That is, the hook 16a and the engaging projection 12d extend over both the cover body 12 and the cover plate 16, and are formed at the center of the front end and the center of the front end thereof (30a, 30a).
b). Here, the engagement protrusion 1 on the lid body 12 side
2d is provided at the upper end of the vertical wall 32 on the inner surface of the recess 30a so as to protrude forward, the upper surface of the lower surface extends obliquely downward, and the lower surface thereof extends substantially horizontally although the upper surface inclines slightly upward. It has a shape and is formed integrally with the vertical wall 32.

The hook 16a on the side of the cover plate 16 is formed integrally with a vertical wall 34 which forms the inner surface of the recess 30b of the cover plate 16 and is further extended downward, and protrudes rearward on the back side. Projection piece 36 that engages with the lower surface of engagement projection 12d
Is provided. The protruding piece 36 also has a trapezoidal vertical cross section, and the upper surface 36a of the protruding piece 36, which serves as a locking engagement surface with the engagement protrusion 12d, is aligned with the lower surface of the engagement protrusion 12d and is substantially horizontal. Is formed. Also, the projecting piece 36
The lower surface 36b of the hook 16a is formed as an inclined surface, so that the hook 16a can be easily elastically deformed by the pressing force of the cover plate 16 by abutting against the inclined surface of the upper surface of the engaging projection 12d when locking.

A push piece 40 is provided in the recess 30 as a release mechanism for releasing the lock. The push piece 40 has a rear end 40a extending below the hook 16a in a locked state and extending rearward of the hook 16a.
And has a lever shape extending to the outer peripheral surface portion, and is bent upward at a portion immediately before the hook 16a in the locked state. At the rear end 40a of the push piece 40, a projection 40c that abuts on the lower surface 36b of the protruding piece 36 formed on the rear surface of the hook 16a in the locked state is integrally formed to protrude upward. Then, the lower surface of the rear end 40a is in surface contact with the upper surface 30c of the recess 30a.

At the center of the lower surface of the push piece 40, there is provided a support piece 42 extending downward from a substantially bent portion thereof to form a pivot point C as a lever of the push piece 40 at a lower position. It is formed integrally. The support piece 42 is inserted with a play into the storage hole 44 formed in the upper surface 30c of the recess 30 so as to be tiltable.
The rear surface 4 is formed in the storage hole portion 44 with the tilt of the support piece 42.
Step 44a for forming a rotation fulcrum C by abutting on 2a
Are provided on the vertical wall on the rear side. The storage hole 4
The front vertical wall 4 has an inclined surface 44b whose upper side is inclined forward at a portion facing the step portion 44a. The inclined surface 44b prevents the push piece 40 from dropping out of the recess 30 and allows the support piece 42 to be inclined. The distance between the lower end of the inclined surface 44b and the step 44a is enlarged like an arrowhead. The thickness of the tip of the formed support piece 42 is slightly smaller than the thickness of the support piece 42.

That is, in the push piece 40 of the illustrated example, the pivot fulcrum C of the fish piece 40 is formed at the lower position by the support piece 42 projecting downward.
When the front end of the push piece 40 is pushed downward and rocked, the rear end 40a of the push piece engages with the rear surface of the hook 16a to sufficiently secure a stroke for pushing the hook 16a forward. And the operability of unlocking is improved. It is sufficient that the push piece 40 pushes the hook 16a forward at the rear end 40a by its rotation. Therefore, the push piece 40 extends directly below the engagement point between the hook 16a and the push piece rear end 40a. What is necessary is just to make the rotation fulcrum C as close to the line as possible. If a forward stroke necessary for unlocking can be secured, the support piece 42 for forming the pivot point at the lower position as shown in the illustrated example is not always necessary.

In the airtight cosmetic container 10 of the present embodiment having the above configuration, when the cover plate 16 is closed, first, the cover plate 1
6 is lightly closed, the annular projection 24 is inserted into the opening 12a of the lid body 12, as shown in FIG.
The convex portion 28 formed on the outer peripheral portion 20b of the packing material 20 comes into contact with the upper end of the lid main body 12. At this time,
The hook 16a of the lid plate 16 is engaged with the engaging projection 12d of the lid body 12.
Is not yet engaged with the annular projection 2
4 is provided with a gap δ between the inner surface of the opening of the lid body 12 and the packing material 20.
The interior is not sealed.

Then, when the lid plate 16 is pushed down from the closed state to lock the hook 16a to the engaging projection 12d,
The convex portion 28 is pushed by the upper end of the side wall 12a, and is pushed up relatively to the center of the packing material 20. Then, as shown in FIG. 5, the outer peripheral portion 20b of the packing material 20 is tilted upward from the hinge 26 with the convex portion 28 as a power point and the hinge 26 as a fulcrum. When the outer peripheral portion 20b of the packing material 20 is tilted in this manner, the annular projection 24 is tilted so that the diameter thereof is increased outward, and the lower end of the annular projection 24 is closed by the opening of the lid body 12. When pressed against the inner peripheral surface, the packing material 20 is
The inside is sealed to make it airtight.

Therefore, the airtight cosmetic container 10 of this embodiment is
Is a structure in which the annular projection 24 is pressed against the inner peripheral surface of the opening of the lid main body 12 only when the lid plate 16 is locked with respect to the lid main body 12. 24 does not contact the inner peripheral surface of the opening of the lid body 12.
Therefore, the annular projection 24 does not rub against the inner peripheral surface of the opening of the lid body 12 until the lid plate 16 is locked, so that the packing material 20 can be prevented from being worn, and its durability can be greatly reduced. In addition, the cover plate 16 can be closed smoothly with a light touch.

Further, in this airtight state, a force in the opening direction acts on the cover plate 16 due to the elastic restoring force of the packing material 20 pressed into contact, and the force in the opening direction, that is, the elastic restoring force is engaged with the hook 16a of the locking portion. It is received by the engagement with the mating projection 12d and acts substantially vertically between the engagement surfaces. However, since the engaging surfaces of the hook 16a and the engaging projections 12d in the locked state are substantially horizontally engaged with each other, the elastic restoring force acts almost vertically between these engaging surfaces. Thus, there is hardly any component force for elastically deforming the hook 16a in the unlocking direction. Therefore, the hook 16a is not elastically deformed in the releasing direction, and the locked state is not loosened, and the lid 16 is not pushed back in the opening direction. Therefore, there is no possibility that the pressure contact force of the packing material 20 is weakened and the airtightness is reduced.

On the other hand, the engagement between the hook 16a in the locked state and the engagement projection 12d is released by pressing the push piece 40 provided in the recess 30. That is, when the pressing operation portion of the push piece front end 40b is pushed downward, the push piece 40 rotates by turning the corner by the rear surface 42a of the support piece 42 abutting against the corner at the lower end of the step portion 44a of the storage hole 44. It swings around the fulcrum C, and the rear end 40a of the push piece abuts and engages with the rear surface of the hook 16a to push it forward. As a result, hook 1
6a is elastically deformed, the protruding piece 36 on the rear surface of the hook 16a is disengaged from the engaging protrusion 12d, and the lock is released. At this time, the pressing force is transmitted without loss as the unlocking force, and the unlocking can be reliably released with a light operating force.

At this time, the outer peripheral portion 20b of the packing material 20 which is tilted with the release of the lock of the hook 16a is released.
Is restored flat, and the pressing force of the annular projection 24 strongly pressed against the inner peripheral surface of the opening of the lid main body 12 against the inner peripheral surface of the opening of the lid main body 12 is weakened, so that the annular projection 24 is separated from the lid main body 12. Accordingly, the annular projection 24 is
The lid plate 16 can be opened smoothly without rubbing against the inner peripheral surface of the opening.

When the lid plate 16 is opened, the pressure contact between the annular projection 24 and the inner peripheral surface of the opening of the lid body 12 is weakened, and air enters the container body 18. When the container body 18 is lifted, the inside of the container body 18 can be prevented from becoming negative pressure, and the lid plate 16 can be opened smoothly with a light operating force from this surface.

[0031]

As described above, in the hermetically sealed cosmetic container of the present invention, the elastic restoring force due to the press-fitting of the packing material when the lid plate is closed with respect to the lid main body is not related to the locking portion. Since it works almost perpendicular to the mating surface, there is no component of elastic restoring force that pushes the hook in the unlocking direction, so the hook is elastically deformed and the lid plate is pushed back in the opening direction. Never be. For this reason, the lid plate can be locked to the lid main body while maintaining the pressure-bonded state where the packing material is sufficiently crushed, and good airtightness can be secured. Further, since there is no occurrence of temporal deformation due to the elastic deformation of the hook, good airtightness can be maintained for a long time.

When the front end of the push piece is pressed down, the rear end directly engages the rear surface of the hook and swings forward to push the hook forward, so that the pressing force is stopped. It is transmitted as a lock release force without waste, and the lock can be reliably released with a light operation force.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an airtight cosmetic container according to the present invention, in which a main part is partially exploded.

FIG. 2 is a sectional view showing a state where the lid plate is closed.

FIG. 3 is a sectional view showing a state where the lid plate is opened;

FIG. 4 is an enlarged front view of an essential part showing a state where the lid plate is locked.

FIG. 5 is an enlarged sectional view showing a state where the lid plate is locked.

FIG. 6 is an enlarged sectional view of a main part showing the above-described state of the unlocking operation of the locking device.

FIG. 7 is an enlarged sectional view of a main part showing a state in a later stage of the unlocking operation of the lock.

FIG. 8 is an enlarged sectional view of a main part showing a state in which the unlocking operation of the lock is completed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Hermetic cosmetic container 12 Lid main body 12a Opening 12d Engagement projection 14 Hinge 16 Lid plate 16a Hook 18 Container main body 18a Mouth 20 Packing material 30 Concave part 32 Vertical wall (back side) 36a Upper surface (engagement surface) of projection 36b Lower surface of the protruding piece (rear surface of hook) 40 Push piece 40a Rear end 40b Front end

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shun Takahashi 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Shiseido Daiichi Research Center Co., Ltd. (72) Inventor Kochi Yuzuhara 5-29-10 Tachibana, Sumida-ku, Tokyo Yoshida Industry Co., Ltd.

Claims (1)

[Claims] 1. A container body, a lid body detachably provided at a mouth portion of the container body with a sealing property and having an opening formed in a top portion, and a hinged hinge at a rear portion of the lid body. A cover plate that covers the opening so that it can be opened and closed, and a packing material that is interposed in a crimped state between the cover plate and the peripheral edge of the cover body in a locked state of the cover plate to seal the inside of the container body. An engagement protrusion protruding from the inner surface of the recess formed in the upper surface of the front end center of the lid body; and an engagement protrusion protruding from the center of the front end of the lid plate and engaging with the engagement protrusion. An airtight cosmetic container having a hook that locks and locks the packing material. The engaging surface is formed substantially horizontal so that the rear end of the recess extends below the hook and extends rearward. A push piece that extends obliquely upward at the front end and swings by a downward pressing operation of the front end so that the rear end engages with the rear surface of the hook and pushes the hook forward. And airtight cosmetic container.