JP3927872B2 - Container hinge structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge structure for a container in which a container body and a lid are connected to each other so as to be freely opened and closed, and in particular, a structure in which a shearing force is not easily applied to a hinge shaft that connects the container body and the cover is smooth. The present invention relates to a hinge structure for a container that can be opened and closed.
[0002]
[Prior art]
As a cosmetic compact container, a combination of a hinge piece provided with a shaft hole provided at the rear end of the container body and a hinge piece provided with a shaft hole provided similarly at the rear end of the lid body, A metal hinge shaft or a synthetic resin hinge shaft is inserted into the hole, and a lid is connected to the container body so as to be openable and closable.
[0003]
[Problems to be solved by the invention]
In the rotation limit of the lid of the cosmetic compact container with respect to the container main body, when some external force is applied to the container main body or the cover body, the portion where the force is applied becomes a power point, and the lid is attached to the rear end of the container main body at the rotation limit. The point at which the body abuts becomes a fulcrum, and the hinge shaft spanning the shaft hole drilled in the hinge piece of the container body and the shaft hole drilled in the hinge piece of the lid body becomes the point of action, and the hinge shaft There was a problem that a large shearing force was applied locally by the action of the lever and the hinge shaft was easily broken. In recent years, taking into account the need for separate collection at the time of disposal and the cost, etc., there has been a trend to use synthetic resin hinge shafts for synthetic resin cosmetic compact containers. When the shaft is used, there is a problem that the shaft is more easily broken by a large shearing force due to the lever action.
[0004]
In addition, since the relative rotation of the container body and the lid that gives an appropriate feeling of resistance is achieved by the hinge shaft press-fitted into the shaft hole between the container body and the lid, the container body and the lid are pressed into the shaft hole. It is said that all the weight of the lid is added to the hinge shaft that joins the lid, and the hinge shaft generates an unpleasant creaking noise when the container body and the lid are rotated relative to each other due to the weight of the lid. There was also a problem.
[0005]
Therefore, the present invention was devised to solve the above-described problems in the prior art, and a local shearing force is not applied to the hinge shaft coupled across the container body and the lid. Therefore, it is intended to improve the durability, safety and usability of the container by preventing breakage of the hinge shaft due to the lever action.
[0006]
[Means for Solving the Problems]
To solve the above problem,
According to the first aspect of the present invention, there is provided a hinge piece provided with a shaft hole provided in a rear end portion of a container main body having a storage portion, and a shaft hole provided in a rear end portion of a lid body. A pair of containers in which the end faces of the hinge pieces face each other at least a pair, and the hinge shafts are inserted into the shaft holes of both the hinge pieces across the opposed end faces, so that the container main body and the lid body are coupled to be freely opened and closed. Having a hinge structure,
Provided on the end face of the hinge piece of the lid body is a short cylindrical protrusion eccentric from the center of the shaft hole, and on the end face of the hinge piece of the container body facing the protrusion, one on the circumference of the protrusion. An arcuate inner peripheral surface that slidably contacts the portion, and provided with a recessed fitting portion that fits the protruding portion so as to be relatively rotatable;
Due to the eccentricity of the projection provided on the hinge piece of the lid body, one part on the circumference of the projection of the lid body is recessed in the container body at the closed rotation limit where the lid body is locked on the front side of the container body. The opening of the lid is in contact with the inner circumferential surface of the front side of the container, and the hinge piece of the lid hits the rear end of the container body. It is to be in contact with the inner peripheral surface on the rear side of the portion.
[0007]
In the first aspect of the invention, at the time of relative rotation between the container main body and the lid body, one location on the circumference of the projection portion eccentric from the center of the shaft hole provided on the end face of the hinge piece of the lid body is The container body rotates while always in sliding contact with the inner peripheral surface of the recessed fitting portion provided on the end surface of the hinge piece of the container main body.
[0008]
In the closed rotation limit where the lid is locked on the front side of the container body, one place on the circumference of the protrusion of the lid body abuts on the inner peripheral surface on the front side of the concave fitting portion of the container body, The lid that is locked on the front side of the container body is prevented from tilting forward due to this locking.
[0009]
In addition, in the open rotation limit where the hinge piece of the lid abuts against the rear end portion of the container body, one place on the circumference of the projection of the lid body is the inner side of the recessed fitting portion of the container body. When a certain force is applied to the container body or lid body when it contacts the peripheral surface, the hinge piece of the lid body hits the rear end of the container body as a fulcrum. The shearing force to be applied is received by the portion where the projecting portion and the recessed fitting portion are in contact with each other to prevent the shearing force from being applied to the hinge shaft.
[0010]
Since the protrusion provided on the hinge piece of the lid body and the recessed fitting part provided on the hinge piece of the container body rotate relative to each other only at one location on the circumference of the protrusion, the rotational resistance is It does not increase, and an appropriate resistance feeling during relative rotation can be maintained.
[0011]
According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the protrusion is provided on the end face of the lid hinge piece having the shaft hole, and the concave fitting portion is provided on the hinge of the container body. It is in providing in the end surface which has a shaft hole of a piece.
[0012]
In the invention according to claim 2, the protrusion provided on the end face of the hinge piece of the lid body around the hinge shaft inserted through the shaft hole of the hinge piece of the lid body and the shaft hole of the hinge piece of the container body Since the concave fitting portion provided on the end face of the hinge piece of the container main body facing the projection portion is in contact with the protrusion portion, the tilting of the lid body toward the front side in the closed rotation limit is prevented. Thus, the action of preventing the shearing force from being applied to the hinge shaft from being applied to the hinge shaft is ensured, and an excessive force is not applied to the hinge shaft, so that the hinge shaft can be prevented from being broken.
[0013]
According to a third aspect of the present invention, there is provided a hinge piece provided at the rear end portion of the container body, a hinge piece provided at the rear end portion of the lid body, an end face opposed to a face having the shaft hole, and a shaft hole. A surface having no end faced, a protruding portion projecting from the surface of the lid body without the shaft hole, and a recessed fitting portion being provided on the surface of the container body having no shaft hole.
[0014]
In the invention according to claim 3, a projection is provided on the end surface opposite to the end surface of the hinge piece of the lid body through which the hinge shaft is inserted, and is recessedly fitted to the end surface of the hinge piece of the container body facing the projection portion. Because of the contact between the projection and the recessed fitting that slides and rotates at one point on the circumference, it prevents the lid from tilting forward in the closed rotation limit, and in the open rotation limit. Not only does it prevent shearing force from being applied to the hinge shaft, but also the protrusion and concave fitting portion rotate relative to each other on a straight line centered on the hinge shaft, so that the lid can rotate stably. Turn into.
[0015]
According to a fourth aspect of the present invention, in addition to the configuration of the first, second, or third aspect, the concave fitting portion has a longitudinal groove shape that opens upward.
[0016]
In the invention according to claim 4, since the concave fitting portion is formed in the shape of a longitudinal groove that opens upward, it is easy to assemble the container body and the lid body by fitting the protruding portion into the concave fitting portion. At the time of relative rotation between the lid and the container body, the protrusion is supported by a vertical groove-like recessed fitting portion opened upward so that the weight of the lid is not applied only to the hinge shaft. Because it does not generate unpleasant creaking sounds.
[0017]
According to a fifth aspect of the present invention, in addition to the structure of the first, second, third or fourth aspect, the hinge shaft is made of a synthetic resin.
[0018]
In the invention according to claim 5, even if the hinge shaft is made of synthetic resin, since a large shearing force is not locally applied to the hinge shaft made of synthetic resin, the safety and durability of the container Sex is secured.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing the open state of the cosmetic compact container 1, and FIG. 2 is a cross-sectional view showing the open state of the container 1.
[0020]
The container 1 includes a container body 2, a lid body 6, and a pair of hinge shafts 10. Generally, the container body 2 and the lid body 6 use polypropylene, ABS, AS or the like as a molding material, and the hinge shaft 10 uses nylon or the like as a molding material.
[0021]
The container body 2 in the shape of a square dish provided with a storage portion 11 for storing cosmetics is provided with a pair of hinge pieces 3 each having a shaft hole 4 projecting rearward on both sides at the rear end, and at the center of the front end. A locking recess 12 is provided.
[0022]
The lid body 6 to which the mirror body 14 is attached has a latching convex portion that is provided with a single hinge piece 7 having a shaft hole 8 formed in the central portion of the rear end, and is latched to the latching concave portion 12 in the central portion of the front end. 13 is suspended. The closure of the container body 2 and the lid body 6 is held by the locking of the locking recess 12 and the locking projection 13.
[0023]
The hinge piece 3 and the hinge piece 7 have a pair of end faces that face each other on both sides of the container 1, and the hinge shaft 10 spans the shaft hole 4 of the hinge piece 3 and the shaft hole 8 of the hinge piece 7 that face each other. Is inserted.
[0024]
The end surface of the hinge piece 7 is provided with a short columnar projection 9 that is eccentric from the center of the shaft hole 9 around the shaft hole 9, and the end surface of the hinge piece 3 that faces the projection 9 is provided with the shaft hole 4. Around the periphery, there is provided a groove-like recessed fitting portion 5 having an arcuate inner peripheral surface that is slidably contacted at one location on the circumference of the projection 9 and is relatively rotatable.
[0025]
FIG. 2 is a cross-sectional view showing the closed rotation limit state of the container body 2 and the lid body 6 in which the lid body 6 is locked on the front side of the container body 2. Moreover, Fig.3 (a) is a longitudinal cross-section XX arrow view of FIG. 2, FIG.3 (b) is a longitudinal cross-section XX arrow view which shows an open rotation limit state.
[0026]
As shown in FIG. 2 and FIG. 3A, in the closed rotation limit state in which the locking projection 13 is locked to the locking recess 12, one point on the circumference of the projection 9 is recessed. The lid body 6 abuts against the inner peripheral surface of the front side of the portion 5 and prevents the lid body 6 from tilting forward due to the locking of the locking recess 12 and the locking projection 13. For this reason, an unreasonable force for preventing the tilt of the lid 6 toward the front side is not applied to the hinge shaft 10.
[0027]
As shown in FIG. 3 (b), in the open rotation limit where the hinge piece 7 abuts on the rear end of the container body 2, the protrusion 9 that is eccentric from the center of the shaft hole 8 rotates, One point on the circumference of the protrusion 9 abuts on the inner peripheral surface on the rear side of the recessed fitting portion 5.
[0028]
When some force (arrow F in the figure) is applied to the container body 2 or the lid body 6, the portion (point A in the figure) where the hinge piece 7 abuts against the rear end of the container body 2 serves as a fulcrum. Due to the lever action centered on point A), a shearing force (arrow B in the figure) acts in the direction of the hinge shaft 10 that joins the container body 2 and the lid body 6. In order to receive the shearing force (arrow B) to be applied to the hinge shaft 10 with the projection 9 that abuts against the inner peripheral surface on the rear side of the recessed fitting portion 5 (point C in the figure), The shearing force due to the lever action is not applied, and the hinge shaft 10 can be prevented from being broken.
[0029]
Further, when the container body 2 and the lid body 6 are rotated relative to each other, a vertical groove-shaped recess opened upward is provided so that the weight of the lid body 6 is not applied to the hinge shaft 10 during the rotation. Since the protrusion 9 is supported by the arcuate inner peripheral surface of the fitting portion 5, the unpleasant creaking sound that is generated when the weight of the lid 6 is added to the hinge shaft 10 is not generated.
[0030]
FIG. 4 is an exploded perspective view of the container body 2, the lid body 6, and the hinge shaft 10 showing another embodiment of the present invention. The container body 2 is provided with a pair of hinge pieces 3 each having a shaft hole 4 drilled from both ends of the rear end, and a single hinge piece 3a having no shaft hole drilled from the center of the rear end. .
[0031]
On the other hand, the lid body 6 has a pair of hinge pieces 7 that are fitted between the hinge pieces 3 and the hinge pieces 3a. A shaft hole 8 is formed on the end face of the hinge piece 7 facing the hinge piece 3, and a short columnar projection 9 eccentric from the center of the shaft hole 8 is provided on the other end face.
[0032]
Both end surfaces of the hinge piece 3a facing the projection 9 have arc-shaped inner circumferential surfaces with the shaft hole 4 as the center, and can slide relative to each other on one point on the circumference of the projection 9 A vertical groove-shaped concave fitting portion 5 is provided to which the protruding portion 9 is fitted.
[0033]
When the projection 9 is fitted into the recessed fitting 5, the hinge shaft 10 is inserted into the shaft hole 4 and the shaft hole 8, and the container body 2 and the lid body 6 are assembled, the opposite side through which the hinge shaft 10 is inserted In this plane, the protrusion 9 rotates relative to the inner peripheral surface of the recessed fitting portion 5 at one location on the circumference, and the hinge shaft 10 and the shaft hole are aligned on a straight line centering on the hinge shaft 10. 4 and the shaft hole 8 as well as the relative rotation of the projection 9 and the recessed fitting portion 5 stabilize the rotation of the lid 6.
[0034]
As shown in the cross-sectional view of FIG. 5, in the closed rotation limit, the projecting portion 9 abuts on the inner peripheral surface on the front side of the recessed fitting portion 5, and on the front side of the container body 2, The lid 6 is prevented from tilting forward due to the engagement with the locking projection 13.
[0035]
Further, when the hinge piece 7 is in the open rotation limit where the hinge piece 7 abuts against the rear end portion of the container body 2, the protruding portion 9 abuts on the inner peripheral surface on the rear side of the recessed fitting portion 4, and the container body 2 or the lid body 6. When a force is applied to the hinge shaft 10, the hinge piece 7 receives the shearing force that acts on the hinge shaft 10 with the portion where the hinge piece 7 abuts against the rear end of the container body 2 as a fulcrum, thereby preventing the hinge shaft 10 from being broken.
[0036]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the invention described in claim 1, the protrusion provided on the end face of the hinge piece of the lid is fitted in the closed rotation limit where the lid is locked on the front side of the container body. It is possible to prevent the cover body from tilting forward by coming into contact with the inner peripheral surface on the front side of the recessed fitting portion provided on the end face of the hinge piece of the container body facing the protruding portion.
[0037]
In addition, the projection provided on the end surface of the hinge piece of the lid body is on the end surface of the hinge piece of the container body facing the projection portion in the open rotation limit where the hinge piece of the lid body hits the rear end portion of the container body. Receiving the shearing force acting on the hinge shaft with the hinge piece of the lid contacting the rear end of the container body as a fulcrum, contacting the inner peripheral surface of the rear side of the recessed fitting provided, Destruction can be prevented.
[0038]
The protrusion provided on the hinge piece of the lid body rotates relative to the inner peripheral surface of the concave fitting portion provided on the hinge piece of the container body at one location on the circumference, so that the shaft hole of the hinge piece The hinge shaft is reinforced and the durability and safety of the container are improved without obstructing the rotation of the lid body having an appropriate resistance set by the inserted hinge shaft.
[0039]
In the invention according to claim 2, the protrusion provided on the end face of the hinge piece of the lid body around the hinge shaft inserted through the shaft hole of the hinge piece of the lid body and the shaft hole of the hinge piece of the container body Since the inner peripheral surface of the concave fitting portion provided on the end surface of the hinge piece of the container body facing the protruding portion abuts on the circumferential surface of the container body, the hinge piece of the lid is attached to the rear end portion of the container body. With the limit of the open rotation that abuts, it is possible to reliably receive the shearing force acting on the hinge shaft by the lever action with the portion where the hinge piece of the lid abuts as a fulcrum, thereby reliably preventing the hinge shaft from being broken.
[0040]
In the invention according to claim 3, a projection is provided on the end surface opposite to the end surface of the hinge piece of the lid body through which the hinge shaft is inserted, and is recessedly fitted to the end surface of the hinge piece of the container body facing the projection portion. Since the protrusion is provided, not only the relative rotation between the hinge shaft and the shaft hole but also the relative rotation of the projection and concave fitting on the straight line around the hinge shaft, the rotation of the lid can be stabilized. And good usability can be obtained.
[0041]
In the invention according to claim 4, the concave fitting portion provided on the end face of the hinge piece of the container body is formed in a vertical groove shape opened upward, and the protrusion provided on the end face of the hinge piece of the lid is assembled. When the relative rotation between the container body and the lid, the protrusion is supported by the concave fitting part from below, so that the weight of the lid is not applied only to the hinge shaft. Can be prevented, and a good feeling of use of the container can be obtained.
[0042]
In the invention according to claim 5, by using the hinge shaft made of synthetic resin, it is possible to eliminate the need for separate collection, and even when the hinge shaft made of synthetic resin is used, it is locally In addition, since a large shearing force is not applied to the hinge shaft, the durability and safety of the container can be secured and the manufacturing cost can be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a container showing an embodiment of the present invention.
2 is a cross-sectional view of a hinge structure portion of the container of FIG. 1;
3A is a longitudinal cross-sectional view of the container shown in FIG. 2 in the closed rotation limit as viewed from the arrow XX, and FIG. 3B is a vertical cross-sectional view of the container shown in FIG.
FIG. 4 is an exploded perspective view of a container showing another embodiment of the present invention.
5 is a cross-sectional view of a hinge structure portion of the container of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Container 2; Container main body 3; Hinge piece 3a; Hinge piece 4; Shaft hole 5; Concave fitting part 6; Lid 7; Hinge piece 8; Shaft hole 9; Protrusion part 10; Locking concave part 13; Locking convex part 14; Mirror body

Claims (5)

A hinge piece (3) provided with a shaft hole (4) provided at a rear end portion of a container body (2) having a storage portion (11), and a shaft provided at a rear end portion of a lid (6). At least a pair of end faces of the hinge piece (7) provided with the hole (8) are opposed to each other, and the hinge shaft (10 ), And a hinge structure of the container (1) for connecting the container body (2) and the lid body (6) so as to be freely openable and closable, and the shaft hole on the end face of the hinge piece (7). (4) A short cylindrical protrusion (9) that is eccentric from the center is provided, and an end surface of the hinge piece (3) that faces the protrusion (9) is arranged on the circumference of the protrusion (9). The container has an arcuate inner peripheral surface that is in sliding contact with the portion, and is provided with a concave fitting portion (5) that fits the protruding portion (9) so as to be relatively rotatable. In the closed rotation limit where the lid (6) is locked on the front side of the main body (2), one place on the circumference of the projection (9) is the inner peripheral surface on the front side of the recessed fitting part (5). In The hinge piece (7) is in an open rotation limit where the hinge piece (7) hits the rear end of the container body (2), and one place on the circumference of the protrusion (9) is located behind the concave fitting portion (5). A container hinge structure that contacts the inner peripheral surface of the container. Protrusions (9) are provided on the end face of the hinge piece (7) of the lid (6) having the shaft hole (8), and the recessed fitting portion (5) is provided on the hinge piece (3) of the container body (2). The hinge structure of the container according to claim 1, wherein the hinge structure is provided on an end face having a shaft hole (4). The hinge piece (3) provided at the rear end of the container body (2) and the hinge piece (7) provided at the rear end of the lid (6) are opposed to the face having the shaft hole, An end face opposed to the surface without the shaft hole, the protruding portion (9) projecting from the surface without the shaft hole of the lid (6), and the recessed fitting portion (5) is the shaft of the container body (2) The hinge structure of the container according to claim 1, which is provided on a surface having no holes. The hinge structure of the container according to claim 1, 2, or 3, wherein the recessed fitting portion (5) has a longitudinal groove shape opened upward. The hinge structure of the container according to claim 1, 2, 3, or 4, wherein the hinge shaft (10) is made of a synthetic resin.

Images