JP4964530B2 - Compact container opening mechanism - Google Patents

Description

  The present invention relates to a lid opening mechanism for a compact container, and more particularly to a lid opening mechanism that automatically opens a lid when a lid locking mechanism is removed.

In a compact container comprising a case body, a lid attached to the case body by a hinge shaft, and a locking mechanism for the lid attached to the case body, the lid and the case body are unlocked. In the meantime, a mechanism for opening a compact container that automatically opens the lid is conventionally known (see, for example, Patent Document 1).
JP 2003-339428 A

However, in the conventional lid opening mechanism of a compact container, a winding spring is attached to the hinge shaft, the lid is opened by the elasticity of the winding spring, and a braking member provided on the case body is operated on the hinge shaft. There is a problem that the cost increases because the number of parts increases and the structure becomes complicated.
Further, since the winding spring is made of metal, there is a problem that foreign materials are mixed.
Furthermore, if the elasticity of the winding spring is strong, when the lid is opened, the lid may be opened at once and the contents in the case may be scattered.

  In order to solve the above problems, the present invention attaches the lid body to the case body by fitting two hinge shafts inserted from both sides of the case body to the case body and the lid body, respectively. An object of the present invention is to provide a lid opening mechanism for a compact container capable of urging the lid body in the lid opening direction by the hinge shaft.

  In order to solve the above-mentioned problems, the present invention provides a case body, a lid body, a hinge rotation shaft for attaching the lid body to the case body, and a lid body that is attached to the case body as an opening mechanism for the compact container. In a compact container comprising a lid locking member to be operated, the case main body has a bearing portion in which a center is cut out at one end side by a notch portion and bearing holes are provided on both sides, and the lid body is a case. Engage with the notch of the main body and have mounting pieces to be mounted. From both sides of the mounting pieces, bearing holes located corresponding to the bearing holes of the case main body are drilled. An inner circumference and an outer diameter-expanding inner circumference are provided. The hinge rotation shaft includes a shaft member and a spring member formed of a soft material elastomer. The shaft member is a bearing hole of the lid. An inner shaft portion fitted to the inner inner periphery, an outer shaft portion fitted to the inner periphery of the bearing hole of the case body, And parts, to adopt a configuration, wherein a and the outer shaft portion and comprises a communication 設軸 unit for continuously arranged.

As an embodiment of the hinge rotating shaft, the hinge rotating shaft has a spring member integrally formed by insert molding near the connecting shaft portion of the shaft member and the tip of the outer shaft portion, and the inner shaft portion and the outer shaft portion. Adopting a configuration characterized by the continuous connection .

  As an embodiment of the lid opening mechanism, the lid is attached to the case body with a hinge rotating shaft in the opened state, and the leaf spring portion of the spring member of the hinge rotating shaft is twisted and maintained when the lid is closed. In some cases, the twisted leaf spring portion is restored, the inner shaft portion is rotated with respect to the outer shaft portion, and the lid body is rotated with respect to the case body in the opening direction.

As an embodiment of the hinge rotating shaft at the time of opening and closing the lid, a brake part is provided on the spring member of the hinge rotating shaft, and when the lid is opened, it slides in contact with the inner diameter of the bearing hole of the lid with a certain elasticity, and the lid However, the structure characterized by being slowly rotated in the opening direction with respect to the case body is adopted.
Further, the connecting shaft portion of the shaft member of the hinge rotation shaft is broken by the twist of the hinge rotation shaft, and the inner shaft portion and the outer shaft portion of the hinge rotation shaft are connected by the twisted spring member. The structure characterized by this is adopted.

When the lid is open, it is attached to the case body with hinge rotation shafts from both sides.When the lid is closed, the spring member of the hinge rotation shaft is twisted and maintained, and when the lid is opened, the restoring force of the twisted spring member The lid can be automatically rotated in the opening direction with respect to the case body, and the number of parts of the compact container can be reduced.
Also, the brake protrusion of the spring member of the hinge rotation shaft slides with a certain amount of elasticity on the inner diameter of the bearing hole of the lid when the lid is opened, allowing the lid to rotate slowly. It was.

Next, an embodiment of the compact container of the present invention will be described with reference to the drawings.
In FIG. 1, A is a case main body, B is a lid body, C is a lid locking member attached to the case main body A, D is two hinge rotation shafts that rotatably attach the lid B to the case main body A. is there.

The case main body A is composed of an inner case A1 and an outer case A2.
As shown in FIGS. 1 and 2, the inner case A1 includes a bottom wall 1 and a peripheral wall 2, and a housing for cosmetics or the like is provided in the case.
A front upper wall 3a and side upper walls 3b and 3c on both sides are provided on the front end of the peripheral wall 2 and on the outer peripheral upper ends of both sides, and the front side of the peripheral wall 2 is in the center of the front upper wall 3a. At the same time, a lid locking portion 4 that engages with the lid locking member C and opens and closes the lid C is formed.

  On the outer periphery of the rear part of the peripheral wall 2, a bearing part 6a, the center of which is notched by the notch part 5, and the upper surface part is formed continuously with the upper surface parts of the side upper walls 3b and 3c with the notch part 5 interposed therebetween, 6b is arranged.

Bearing holes 7a and 7b are formed at predetermined positions of the bearing portions 6a and 6b. Enlarged engaging portions 8 are formed at both outer ends of the bearing holes 7a and 7b.
A rotation stopper 9 is provided on the inner periphery of the bearing holes 7a and 7b.

  The outer case A2 includes a bottom wall 10, a front front wall 11a that engages with the lower surface of the outer edge of the front upper wall 3a and the side upper walls 3b and 3c of the inner case A1, and side side walls 11b on both sides. 11c.

A cutout portion 12 corresponding to the cutout portion 5 of the inner case A1 is formed at the center on the rear side of the bottom wall 10.
In the center of the front peripheral wall 11a, a cut portion 13 corresponding to the lid locking portion 4 of the inner case A1 is formed.

As shown in FIGS. 1 and 3, the cover body B includes the top wall 15, and the upper surface of the outer edge of the front upper wall 3 a, the side upper walls 3 b and 3 c of the inner case A 1, and the bearing portions 6 a and 6 b when the cover is closed. And a peripheral wall 16 joined to the top wall 15. A mirror is attached to the center of the bottom surface of the top wall 15.
At the center of the front side of the top wall 15, a locking piece 17 that engages with the lid locking portion 4 of the inner case A <b> 1 and the lid locking member C and keeps the lid closed is closed. Yes.
At the center of the rear side of the top wall 15, it is engaged with the inner side of the bearing portions 6 a and 6 b of the inner case A 1, and the mounting piece is supported by the case body A and the lid B is supported by the hinge rotation shaft D. 18 is suspended.

Bearing holes 20a and 20b having a diameter smaller than the inner diameter of the bearing holes 7a and 7b of the inner case A1 are disposed at predetermined positions of the mounting piece 18 from both sides.
Each of the bearing holes 20a and 20b includes an inner inner circumference 21 and a diameter-expanded inner circumference 23 that is enlarged from the end of the inner inner circumference 21 through the step portion 22 and extends in the opening direction. A rotation stopper 24 is provided on the inner inner periphery 21.

The lid locking member C engages with the lid locking portion 4 and the notch 13 of the case main body A and is attached to the front side of the case main body A. When the lid is closed, the lid locking member C engages with the locking piece 17 of the lid B. The lid can be maintained, and when the lid is opened, the lid locking member C is pressed to release the engagement with the locking piece 17 so that the lid can be opened.
That is, the configuration of the lid locking member C, the lid engaging portion 4 of the case main body A, and the locking piece 17 of the lid body B can maintain the closed lid and can be operated by pressing the lid locking member C. Any configuration that can open the lid is acceptable, and the configuration is not limited to the configuration shown in the drawings of the present invention and other configurations.

As shown in FIGS. 1 and 4, two hinge rotation shafts D are prepared for attaching the lid B to the case main body A, and each is formed of a material having a certain degree of rigidity as shown in FIG. The shaft member D1 is formed, and the spring member D2 is formed of a soft elastomer integrally formed by insert molding in the middle of the shaft member D1.
The shaft member D1 includes an inner shaft portion D1a and an outer shaft portion D1b, and a continuous shaft portion D1c that connects the inner shaft portion D1a and the outer shaft portion D1b.

The inner shaft portion D1a is inserted into the bearing holes 20a and 20b of the mounting piece 18 of the lid B, and is fitted to the inner inner periphery 21, and the fitting shaft portion 25 is connected to the connecting shaft portion D1c. And a flange portion 26 whose inner surface is in contact with the step portion 22 of the bearing holes 20a and 20b.
On the outer periphery of the fitting shaft portion 25, a rotation stopper 27 that fits with the rotation stopper 24 of the inner inner periphery 21 is provided.

The outer shaft portion D1b includes an engagement shaft portion 28 connected to the inner shaft portion D1a via the continuous shaft portion D1c, and an inner diameter of the bearing holes 20a and 20b of the mounting piece 18 of the lid B at the tip portion. A guide shaft portion 29 inserted into the circumference 23, a fitting shaft portion 30 to be inserted and fitted into the bearing holes 7a and 7b of the bearing portions 6a and 6b of the inner case A1, and an engaging portion of the bearing holes 7a and 7b 8 and a flange portion 31 to be fitted to the head 8.
On the outer periphery of the fitting shaft portion 30, a rotation stopper 32 that fits with the rotation stopper 9 of the bearing holes 7a and 7b is provided.

The continuous shaft portion D1c is configured such that the shaft portion itself is broken by rotation, and a weakened portion may be provided at a predetermined position so as to be easily broken by rotation.
Further, depending on the material of the hinge rotation shaft D, it may be twisted and not broken.

The spring member D2 is formed in a plate shape with the continuous shaft portion D1c of the shaft member D1 as a central axis, and an end portion of the spring member D2 is connected to the end surface on the flange portion 26 side of the inner shaft portion D1a. And an engagement cylinder portion 36 formed by engaging with the outer periphery of the engagement shaft portion 28 of the portion D1b.
On the outer periphery of the engagement cylinder portion 36, a brake portion is provided which is slidably contacted with a constant elasticity to the inner periphery of the enlarged inner diameter 23 of the bearing holes 20a and 20b of the mounting piece 18 of the lid B. Although the brake protrusion 37 is formed, the brake part may be an enlarged diameter part of the engagement cylinder part 36, and the shape thereof can be set as appropriate.

Next, usage modes and operational effects of the compact container of this embodiment will be described.
In the method of assembling the compact container, first, the lid B is opened at a predetermined position with respect to the inner case A1, and the mounting piece 18 of the lid B is placed between the bearing portions 6a and 6b of the inner case A1. The two hinge rotation shafts D are fitted into the bearing holes 7a and 7b of the bearing portions 6a and 6b from both sides, and the lid body B is attached to the inner case A1.

At that time, the hinge rotation shaft D is configured such that the fitting shaft portion 25 of the inner shaft portion D1a fits with the inner inner periphery 21 of the bearing holes 20a and 20b of the attachment piece 18 of the lid B, and the outer shaft portion. The fitting shaft portion 30 of D1b is fitted to the inner periphery of the bearing holes 7a and 7b of the bearing portions 6a and 6b of the inner case A1, thereby pivotally supporting the lid B on the inner case A1.
Further, the flange portion 26 of the inner shaft portion D1a engages with the step portion 22 of the bearing holes 20a, 20b of the lid B, and the flange portion 31 of the outer shaft portion D1b is engaged with the bearing holes 7a, 7b of the inner case A1. The hinge rotation shaft D is prevented from shifting inward in the bearing holes 20a and 20b of the lid B and in the bearing holes 7a and 7b of the inner case A1. Can do.

Next, the outer case A2 is attached to the lower part of the inner case A1.
At that time, the outer peripheral surfaces 11b and 11c of the outer case A2 are engaged and covered with the outer surfaces of the bearing portions 6a and 6b of the inner case A1, so that the bearing holes 7a and 7b of the inner case A1 and the hinge The end of the outer shaft portion D1b of the moving shaft D can be hidden from the outside of the case body A, and the hinge rotating shaft D is in the bearing holes 20a, 20b of the lid B and the bearing holes of the inner case A1. In 7a and 7b, it can prevent shifting outside.
Finally, the lid locking member C is attached to the case body A.

  Next, when the lid B is closed when using the compact container of the present embodiment, first, the lid B is rotated with respect to the case main body A around the hinge rotation axis D side as a fulcrum.

At that time, the hinge rotation shaft D rotates with the cover B while the inner shaft portion D1a rotates with the cover body B, but the outer shaft portion D1b does not rotate by fitting with the bearing portions 6a and 6b of the inner case A1. As shown in FIG. 5A, twisting occurs in the continuous shaft portion D1c and the leaf spring portion 35 of the spring member D2.
The connecting shaft portion D1c is broken by the twist, but the spring member D2 is made of a soft elastomer, so that the leaf spring portion 35 is twisted, and the hinge rotation shaft D includes the inner shaft portion D1a and the outer shaft portion D1b. Is in a state of being continuously provided by the twisted leaf spring portion 35 of the spring member D2.

Finally, the locking piece 17 of the lid B is locked to the lid locking member C or the lid locking portion 4 of the case body A to maintain the closed state.
At that time, the hinge rotation shaft D is maintained in a state where the leaf spring portion 35 of the spring member D2 is twisted.

When the lid B is opened, the lid locking member C is operated to unlock the locking piece 17 of the lid B and the lid locking member C or the lid locking portion 4 of the case body A.
When the cover B is unlocked, the twisted leaf spring portion 35 of the spring member D2 of the hinge rotation shaft D tries to return to its original shape, and the inner shaft portion D1a is rotated with respect to the outer shaft portion D1b. .

  When the inner shaft portion D1a of the hinge rotation shaft D rotates with respect to the outer shaft portion D1b, the lid body B engaged with the inner shaft portion D1a is moved relative to the case main body A engaged with the outer shaft portion D1b. Then, the lid B can be automatically opened as shown in FIG.

  Further, when the lid B is automatically opened, the brake protrusion 37 of the spring member D2 of the hinge rotation shaft D is a circumferential surface of the enlarged inner circumference 23 of the bearing holes 20a and 20b of the lid B. Therefore, the lid B can be slowly opened.

  The brake protrusion 37 of the spring member D2 and the tip end portion of the guide shaft portion 29 of the outer shaft portion D1b are engaged with the peripheral surface of the diameter-enlarged inner periphery 23 of the bearing holes 20a and 20b of the lid B. Even if the leaf spring portion 35 of the spring member D2 is twisted and deformed, the attachment piece 18 of the lid B and the bearing portions 6a and 6b of the inner case A1 are prevented from shifting.

  Since the hinge rotating shaft D of the present invention is continuously connected by the spring member D2 that deforms the inner shaft portion D1a that does not deform and the outer shaft portion D1b, the inner shaft portion is formed by twisting the hinge rotating shaft D. The fitting of the hinge rotation shaft D, the lid B, and the case main body A can be reliably maintained without changing the shapes of D1a and the outer shaft portion D1b.

  The compact container of the present invention can automatically and slowly open the lid by the restoring force of the hinge rotating shaft that attaches the lid to the case body by removing the locking mechanism of the lid. Therefore, it can be widely used for compacts of various shapes.

It is a figure explaining the compact container of this invention, (a) is a cross-sectional side view, (b) is a cross-sectional top view in the AA line. It is explanatory drawing of a case main body and a lid locking member, (a) is a top view, (b) is a cross-sectional side view. It is explanatory drawing of a cover body, (a) is a side view, (b) is a bottom view. It is explanatory drawing of a hinge rotating shaft, (a) is sectional drawing, (b) is a perspective view. It is a figure explaining the relationship between a case main body, a cover body, and a hinge rotation axis | shaft, (a) is at the time of closing, (b) is a cross-sectional top view at the time of opening.

Explanation of symbols

A Case body A1 Inner case A2 Outer case B Cover C Cover locking member D Hinge rotation shaft D1 Shaft member D1a Inner shaft portion D1b Outer shaft portion D1c Consecutive shaft portion D2 Spring member 1, 10 Bottom wall 2, 16 Perimeter wall 3a Front upper wall 3b, 3c Side upper wall 4 Lid locking portion 5, 12 Notch 6a, 6b Bearing portion 7a, 7b Bearing hole 8 Engaging portion 9, 24, 27, 32 Anti-rotation 11a Front peripheral wall 11b 11c Side wall 13 Notch 15 Top wall 17 Locking piece 18 Mounting piece 18a, 20b Bearing hole 21 Inner inner circumference 22 Step part 23 Expanded inner circumference 25, 30 Fitting shaft part 26, 31 Flange part 28 Engagement Shaft portion 29 Guide shaft portion 35 Leaf spring portion 36 Engaging tube portion 37 Brake protrusion

Claims (5)

In a compact container comprising a case main body, a lid, a hinge rotation shaft for attaching the lid to the case main body, and a lid locking member attached to the case main body to operate to open the lid,
The case body has a bearing portion with a center portion cut out at one end side by a notch portion and bearing holes arranged on both sides.
The lid body includes a mounting piece to be engaged with and attached to the cutout portion of the case body,
From both sides of the mounting piece, drill a bearing hole located corresponding to the bearing hole of the case body,
The bearing hole has an inner inner circumference and an outer diameter inner circumference.
The hinge rotation shaft includes a shaft member and a spring member formed of a soft material elastomer,
The shaft member includes an inner shaft portion that fits in the inner periphery of the bearing hole of the lid, an outer shaft portion that fits in the inner periphery of the bearing hole of the case body, the inner shaft portion, and the outer shaft portion. An opening mechanism for a compact container, comprising a continuous shaft portion to be provided. The hinge rotation shaft is characterized in that the spring member is integrally formed by insert molding near the connecting shaft portion of the shaft member and at the tip of the outer shaft portion, and the inner shaft portion and the outer shaft portion are connected continuously. The opening mechanism of the compact container according to claim 1. The lid is attached to the case body with a hinge rotation shaft in the open state,
When the lid is closed, the leaf spring part of the spring member of the hinge rotation shaft is twisted and maintained,
2. The twisted leaf spring portion is restored when the lid is opened, the inner shaft portion is rotated with respect to the outer shaft portion, and the lid body is rotated with respect to the case body in the opening direction. Or the opening mechanism of the compact container of 2. A brake part is provided on the spring member of the hinge rotation shaft. When the cover is opened, it slides in contact with the inner diameter of the bearing hole of the cover body with a certain amount of elasticity, and the cover body slowly rotates in the opening direction with respect to the case body. The opening mechanism for a compact container according to any one of claims 1 to 3 , wherein the mechanism is moved . The connecting shaft portion of the shaft member of the hinge rotation shaft is broken by the twist of the hinge rotation shaft, and the inner shaft portion and the outer shaft portion of the hinge rotation shaft are connected by the twisted spring member. The opening mechanism for a compact container according to any one of claims 1 to 4.

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