JPH10225321A - Airtight cosmetic container - Google Patents

Abstract

(57) [Problem] To provide an airtight cosmetic container which has a light opening operation force of a lid plate and a high hermeticity. SOLUTION: A lid body 1 attached to a mouth 4 of a container body 2 is provided.
The top opening 6 is openably and closably covered by a lid plate 12 hinged to the rear. The lid plate 12 is provided with a sealing member 26 which is in close contact with the peripheral edge of the opening of the lid main body 8 in a locked state to seal the inside of the container main body 2. A tubular portion 28 is formed on the outer peripheral edge of the lid plate 12 in contact with the outer peripheral edge of the upper surface of the lid main body 8 in a locked state. A protruding hook 32 is formed. A concave portion 34 for accommodating the flexible piece 30 is formed in the lid body 8, and an engaging hole 36 for the hook 32 is formed in a front wall thereof. The engaging surface between the hook 32 and the engaging hole 36 is formed substantially perpendicular to the opening direction of the cover plate 12 so that a component force of the opening force does not act on the hook 32, and the lock of the cover plate 12 can be released. This is performed by pushing an open operation portion 38 protruding from the thin cylindrical portion 28 a above the flexible piece 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic cosmetic container, and more particularly to an hermetic cosmetic container achieving both good airtightness and easy opening and closing operations.

[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 seal member is provided on the back surface of the cover plate to obtain airtightness by being in close contact with the periphery of the opening of the cover body. As the sealing member, there is a cylindrical plug member integrally formed on the lid plate so that the tip portion fits closely to the opening of the lid main body, or a seal packing adhered to the back surface of the lid plate.

[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 main body, a sealing member provided on the back surface of the lid plate in a locked state is provided. It is necessary to ensure that the container is sufficiently adhered to the periphery of the opening of the lid body.However, if the contents expand due to a temperature change and the pressure in the container rises,
The force to open the lid plate increases.

For this reason, when the engaging surface of the hook mechanism is formed on an inclined surface as in the above-mentioned conventional airtight cosmetic container, the force for opening is constantly applied to the hook portion via the inclined surface. As a result, the hook portion is elastically deformed in the release direction, and the lid plate is pushed back, making it difficult to maintain good airtightness.

In order to solve this problem, it is conceivable to increase the thickness of the hook portion or to reduce the inclination angle so that the force in the opening direction acts on the engaging surface as perpendicularly as possible. Can be However, if you do this,
Even if the lock is released by turning the lid plate upward with a lever, the hook portion is unlikely to be elastically deformed, which causes a problem in opening operability.

[0008] The present invention has been made in view of such conventional problems, and its object is to ensure good airtightness,
Moreover, it is an object of the present invention to provide an airtight cosmetic container which can easily open and close the lid plate with a light operating force.

[0009]

In order to achieve the above object, according to the present invention, there is provided 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 tubular portion formed on a peripheral edge portion, provided on the back surface of the lid plate, and in a locked state. A seal member that is in close contact with the opening of the lid body and seals the opening.
A hook formed at the distal end of a flexible piece extending downward from the lower edge of the cylindrical portion at the center of the distal end of the lid plate is engaged with an engaging portion provided at the center of the front end of the lid main body. In the airtight cosmetic container for locking the lid and the lid main body, the hook is formed on the front surface of the flexible piece, and the lid main body is formed with a concave portion for accommodating the flexible piece. An engaging portion with which a hook of the distal end portion of the flexible piece engages is provided on a wall surface, and an engaging surface between the hook and the engaging portion is formed substantially at right angles to the opening operation direction of the lid plate. In addition, an opening operation portion for releasing the engagement between the hook and the engagement portion is formed to protrude outward from an upper portion of the flexible piece on the cylindrical portion of the peripheral edge of the lid plate. The thickness of the cylindrical portion around the opening operation portion was formed thin so that the flexible piece could be moved backward by pushing the operation portion.

Therefore, in the airtight cosmetic container of the present invention, in the state where the lid plate is closed with respect to the lid main body, the force in the opening direction applied to the lid due to the rise in the internal pressure of the container consists of the hook and the engaging portion. Since it acts substantially perpendicular to the engaging surface of the locking portion, there is no component force that pushes the hook in the unlocking direction, so that the hook is elastically deformed and the lid plate is opened in the opening direction. Will not be pushed back. For this reason, the lid plate can be locked to the lid body in a state where the sealing member is sufficiently close to the opening peripheral edge of the lid body, and good airtightness can be secured. Also, if the opening operation portion formed on the cylindrical portion of the lid plate is pushed backward, the cylindrical portion around the opening operation portion is formed to be thin, so that the thin cylindrical portion is pressed with a light pressing force. You can easily bend and move the hook backwards,
The lock can be released by easily detaching the hook from the engaging portion.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 7 show a first embodiment of an airtight cosmetic container according to the present invention. FIG. 1 is a plan view and FIG.
FIG. 3 is a cross-sectional view showing a state in which the lid plate is closed, FIG. 3 is a perspective view showing the lid body and the lid plate in a fully opened state, FIG. 4 is a plan view in a fully opened state of the lid plate, and FIG. 6 is an enlarged vertical sectional view of a main part showing a state in which the locking of the lid plate is released, and FIG. 7 is an enlarged vertical sectional view of a main part showing a state in which the lid plate starts to open.

The airtight cosmetic container of this embodiment is shown in FIG.
As shown in FIG. 7, a container body 2 which has a bottomed cylindrical shape and stores a creamy cosmetic or the like therein, and is detachably provided at an opening 4 of the container body 2 and is provided on a top portion. A cover body 8 having an opening 6 and a cover plate 12 hinged to the rear end of the cover body 8 via a hinge 10 are provided. Lid body 8 and lid plate 1
The hinge 10 is integrally formed by resin molding, and the hinge 10 connecting the lid main body 8 and the lid plate 12 is formed to be extremely thin so as to be freely bent.

The lid main body 8 has a cylindrical shape, and a female screw part 14 formed on the inner peripheral surface on the lower side thereof is screwed and mounted on a male screw part 16 formed on the outer peripheral surface of the mouth part 4 of the container main body 2. You.
The inner diameter of the upper part of the lid body 8 is formed to be smaller than the mouth part 4 of the container body 2, and the lower surface of the reduced diameter part 9 has an annular shape into which the upper end of the mouth part 4 of the container body 2 is fitted. When the lid body 8 is screwed into the mouth portion 4 and tightened, the tip of the mouth portion 4 fits into the annular groove portion 18 and the groove portion 18 is formed.
A sealing property between the tip and the lid body 8 is obtained.

An annular vertical wall 20 protruding along the inner periphery of the opening 6 is formed on the upper surface of the lid body 8, and the inner peripheral portion of the annular vertical wall 20 further extends radially inward in a triangular section. A protruding ridge 22 having a shape and projecting is formed in an annular shape.

On the back surface 24 of the cover plate 12, the annular vertical wall 20 is provided.
A cylindrical projection 26 having a diameter slightly smaller than that of the cylindrical projection 26 is provided. When the lid plate 12 is closed to the lid main body 8 and locked, the cylindrical projection 26 enters the inside of the annular vertical wall 20, and its outer peripheral portion is in close contact with the tip of the convex ridge 22, and the cylindrical projection 26 is closed. It functions as a plug member that secures the sealing property between the cover 8 and the cover plate 12.

A cylindrical portion 28 extending downward along the outer peripheral edge of the cover plate 12 is formed on the rear surface of the cover plate 12. The lower end of the cylindrical portion 28 is closed when the cover plate 12 is closed. The hinge 10 is provided so as to connect the rear central portion of the lower edge of the cylindrical portion 28 and the upper surface of the lid body 8.

On the other hand, in the center of the front part of the cover plate 12, a cantilevered flexible piece 30 extending further below the lower end of the tubular part 28 is provided in a radial direction from the inner peripheral surface of the tubular part 28. The hook 32 is integrally formed so as to protrude inward, and a hook 32 protruding further forward is provided on the front surface of the distal end. And
The hook 32 engages with an engaging portion provided at the center of the front end of the lid body 8 when the lid plate 12 is closed, and locks the lid plate 12 to the lid body 8.

That is, a concave portion 34 for accommodating the above-mentioned flexible piece 30 is formed in the upper portion of the front of the lid main body 8 at the upper center thereof.
An engaging hole 36 with which the hook 32 at the tip of the flexible piece 30 that fits inside is formed as the above-mentioned engaging portion. here,
The engaging surfaces of the engaging hole 36 and the hook 32 that engage with each other are formed substantially horizontally.
The force in the opening direction acting on 2 acts substantially perpendicularly between these engagement surfaces, so that no horizontal component force is generated at the portion.

The lower surface of the hook 32 on the side of the lid plate 12 is formed to be inclined, and the lower surface of the hook 32 abuts against the upper end of the front wall of the concave portion 34 when the lock is locked, so that the lower surface of the lid plate 12 is easily pressed down. The flexible piece 30 can be elastically deformed rearward.

Further, on the cylindrical portion 28 of the cover plate 12, a push button-shaped opening operation portion 38 which is located above the flexible piece 30 and protrudes radially outward is formed. The tubular portion 28 around the opening operation section 38 is formed thin and rich in flexibility in order to push the opening operation section 38 and move the lower flexible piece 30 backward. It is easily elastically deformed. In this embodiment, as shown in FIG. 1 and FIG. 4, the front side of the cylindrical portion 28 is formed in the thin portion 28a within a range of approximately 120 degrees center angle.

In the airtight cosmetic container of the present embodiment having the above-described structure, when the lid plate 12 is closed, the cylindrical projection 26
Is inserted into the opening 6 of the lid body 8 and comes into contact with the inclined surface of the upper surface of the convex 22 provided on the inner peripheral portion of the upper end of the annular vertical wall 20 forming the opening 6 and is guided by this inclined surface. While being lightly press-fitted into the inner peripheral portion of the ridge 22 and closely contacted. Thereby, the space between the lid body 8 and the lid plate 12 is sealed, and the airtightness inside the container body 2 is ensured.

At the same time, the flexible piece 30 provided at the front end of the cover plate 12 enters the concave portion 34 of the cover body 8, and the hook 32 at the front end of the flexible piece 30 engages with the engagement hole 36. And locked.

If the internal pressure of the container increases due to a temperature rise or the like in this airtight state, the increased pressure pushes the lid plate 12 upward to act as a force in the opening direction. Is received by the engagement between the hook 32 of the locking portion and the engagement hole 36, and is transmitted between the engagement surfaces. At this time, since the engaging surfaces of the hook 32 and the engaging hole 36 in the locked state are engaged with each other substantially horizontally, the opening force due to the increase of the internal pressure is substantially vertical between the engaging surfaces. As a result, there is hardly any component force for the hook 32 to be elastically deformed in the unlocking direction. Therefore, the hook 32 is not elastically deformed in the releasing direction, and the locked state is not loosened, and the lid 12 is not pushed back in the opening direction. Therefore, the container body 2
The airtightness of the inside does not decrease.

On the other hand, in order to release the engagement between the hook 32 and the engagement hole 36 in the locked state, the pressing operation portion 38 formed immediately above the flexible piece 30 is pushed in. When the pressing operation portion 38 is pushed in, the periphery of the pressing operation portion of the cylindrical portion 28 of the cover plate 12 is formed in the thin portion 28a. Of the flexible piece 30 is moved backward, and the hook 32
Is easily disengaged from the engaging hole 36 to release the lock, and the cover plate 12 can be easily opened by pushing up the pressing operation portion 38 upward as it is.

FIG. 8 shows a second embodiment in which a wide-mouthed bottle is used as the container body. As shown in the drawing, the basic structure of the second embodiment is exactly the same as that of the first embodiment, and the mouth 4 'of the container body 2' made of a wide-mouth bottle has a cylindrical shape having an opening at the top. A lid body 8 'is screwed on, and a lid plate 12' is provided at the rear end of the lid body 8 'via a hinge 10'. The lid body 8 'and the lid plate 12' are integrally formed by resin molding similarly to the first embodiment, and the hinge 10 'connecting the lid body 8' and the lid plate 12 'is bent freely. It is formed to be thin and thin.

Then, the flexible piece 30 'provided on the cylindrical portion 28' of the cover plate 12 'enters into the concave portion 34' formed on the upper surface of the lid body 8 ', and the tip of the flexible piece 30' The point that the hook 32 ′ is engaged with the engaging hole 36 ′ formed in the front wall of the concave portion 34 ′ to be locked, and the cylindrical portion 2 of the lid plate 12 ′
At 8 ', a push button-shaped opening operation part 38' projecting outward in the radial direction is formed above the flexible piece 30 ', and a cylindrical part 28' front end around this opening operation part 38 'is formed. The side is formed in a thin portion 28a 'having high flexibility so as to be able to move the lower flexible piece 30' backward by pushing in the opening operation portion 38 'and is easily elastically deformed.

Here, the second embodiment differs from the first embodiment in the following points. That is, the inner diameter of the upper part of the lid main body 8 'is reduced to the same size as the inner diameter of the opening 4' of the container main body 2 ', and the lid main body 8' is screwed to the opening 4 'and tightened. When it is inserted, the front end of the mouth 4 'comes into pressure contact with the lower surface of the reduced diameter portion 9' so that a sealing property between the front end of the mouth 4 'and the lid body 8' is obtained.

An annular vertical wall 20 'is formed on the upper surface of the lid body 8' so as to protrude along the inner periphery of the opening.
The rear surface 24 'of 2' is provided with a cylindrical projection 26 'that fits into the inner peripheral portion of the annular vertical wall 20'. The cylindrical projection 26 'closes the lid plate 12' to the lid body 8 '. In the locked state, the annular vertical wall 20 ′ and the cylindrical projection 26 ′ are in close contact with each other to ensure the sealing property between the lid body 8 ′ and the lid plate 12 ′.

FIG. 9 shows a third embodiment. In the third embodiment, the lid plate and the lid body in the second embodiment are separated into individual parts, and packing is used for the sealing member. Since there is no difference from the embodiment, the same members are denoted by the same reference numerals and description thereof will be omitted.

That is, the lid body 8 "and the lid plate 12" are rotatably connected at their rear ends by pin connection, and a cylindrical portion formed along the outer peripheral edge of the lid plate 12 ". At the lower end of the rear end portion of the 28 ", a boss portion 42 through which the rotation pin 40 on the outer peripheral edge is inserted is integrally formed. On the lid body 8 "side, a concave portion 44 for accommodating the boss 42 is provided on the upper surface of the rear end portion.

On the other hand, the lid body 8 "
An annular projection 46 having a diameter larger than that of the annular vertical wall 20 "and slightly projecting downward in a ring shape is integrally formed, and a packing material 50 made of a rubber plate is provided in a storage recess 48 formed by the annular projection 46. Affixed via an adhesive, the lid plate 1
In the locked state of 2 ", the annular vertical wall 20" of the lid body 8 "is pressed against and adhered to the packing material 50 to seal the inside of the container body 2 '.

[0032]

As described in detail in the above embodiments, in the airtight cosmetic container according to the present invention, the contents expand due to a rise in temperature when the lid plate is closed with respect to the lid body. Even if the internal pressure in the container increases, the force in the opening direction acting on the lid plate due to the increase in pressure is transmitted to the locking portion including the hook and the engaging portion, and is substantially perpendicular to the engaging surface. Therefore, no component force is generated to push the hook in the unlocking direction, so that the hook is not elastically deformed and the cover plate is not pushed back in the opening direction. For this reason, the lid plate can be locked to the lid body in a state where the sealing member is sufficiently close to the opening peripheral edge of the lid body, and good airtightness can be secured. When the push button portion formed on the tubular portion of the lid plate is pushed backward, the tubular portion around the push button is formed to be thin, so that the thin tubular portion can be easily pressed with a light pressing force. The hook can be bent backward to move the hook backward, and the hook can be easily released from the engaging portion to release the lock.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of an airtight cosmetic container according to the present invention.

FIG. 2 is a partial vertical cross-sectional view of the upper part of the airtight cosmetic container showing a state where the lid plate is closed.

FIG. 3 is a perspective view showing the lid body and the lid plate in the open state according to the first embodiment;

FIG. 4 is a plan view showing the lid body and the lid plate in the open state according to the first embodiment;

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

FIG. 6 is an enlarged longitudinal sectional view of a main part showing a state in which the lock is being released.

FIG. 7 is an enlarged longitudinal sectional view of an essential part showing a state in which unlocking is completed.

FIG. 8 is a longitudinal sectional view showing a second embodiment of the hermetic cosmetic container according to the present invention.

FIG. 9 is a longitudinal sectional view showing a third embodiment of the hermetic cosmetic container according to the present invention.

[Explanation of symbols]

2,2 'container body 4,4' mouth 6 opening 8,8 ', 8 "
Lid body 10, 10 ', 10 "hinge 12, 12',
12 "lid plate 20, 20 ', 20" annular vertical wall 22 ridge 26, 26' cylindrical projection 28, 28 ',
28 "cylindrical portion 28a, 28a 'thin portion 30, 30'
Flexible pieces 32, 32 'Hooks 34, 34'
Recesses 36, 36 'Engagement holes 38, 38'
Opening operation part 50 Packing material

Continued on the front page (72) Inventor Kochi Yubara 5-29-10 Tachibana, Sumida-ku, Tokyo Yoshida Kogyo 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 which covers the opening so as to be openable and closable, and a cylindrical portion is formed on a peripheral portion thereof; and a seal provided on the back surface of the cover plate, which is in a locked state and is in close contact with the opening of the lid body to seal the opening. A hook formed at the tip of a flexible piece extending downward from the lower edge of the cylindrical portion at the center of the tip of the lid plate and engaging with an engaging portion provided at the center of the front end of the lid main body. In the airtight cosmetic container for locking the lid plate and the lid body, the hook is formed on the front surface of the flexible piece, and the lid body has a recess for accommodating the flexible piece. The front wall surface of the concave portion is provided with an engaging portion with which the hook of the distal end of the flexible piece is engaged, and the engaging surface between the hook and the engaging portion is The hook is formed substantially at right angles to the opening direction of the lid plate, and is provided on the cylindrical portion of the lid plate periphery to disengage the hook from the engaging portion at the upper part of the flexible piece. The opening operation part is formed so as to protrude outward, and the thickness of the cylindrical part around the opening operation part is formed to be thin so that the flexible piece can be moved backward by pushing the opening operation part. An airtight cosmetic container characterized by the following characteristics.