JP2000062822A - Lock structure of opening and closing lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy lock structure for use in holding na opened or closed state of an opening and closing lid. SOLUTION: A pivoting supporting section is constituted by a fitting assembly of a fitted supporting shaft 3 arranged at one side of an opening and closing lid 2 and a receiving fitted section 4 arranged at one side of an opening of a main body. An engaging protrusion 42 is arranged at a fitted wall 46 of either the fitted supporting shaft 3 or the receiving fitted section 4 and an engaging section engaged with the other of it is arranged at the other one and then the engaged protrusion is forcedly engaged with the engaging section under a resiliency of the raw material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container with an opening / closing lid made of synthetic resin or the like, for example, a container for a brush with a cleaning handle or a container with an opening / closing lid provided in a toilet corner or the like. The present invention relates to a lock structure of an opening / closing lid.

[0002]

2. Description of the Related Art Conventionally, with this kind of pot with openable lid and storage container, the openable lid is attached by a support shaft with a simple hinge, and the open / closed state of the lid is controlled by the phase relation between the center of gravity of the openable lid and the hinge center. It has a structure to hold.

[0003]

Therefore, when vibration or shock is applied, the lid is closed in a dropped state due to the weight of the tip, or in the case of lying down, the lid opens and the contents are scattered. There are problems such as being lost.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, it is an object of the present invention to provide a simple lock structure for holding the open / closed state of the open / close lid.

That is, a fitting projection is provided on one fitting wall of either the fitting support shaft body or the receiving fitting body that constitutes the pivotal support portion, and the other engaging portion is provided so as to engage with the fitting projection shaft due to the elasticity of the material. It is designed so that it will be forced to engage at the joint.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 is a main body of a container with an opening / closing lid, and one side of the opening / closing lid 2 is provided with a fitting support shaft body 3 constituted by two rotating arms 32 having a support shaft 31 projecting from the tip. At the same time, a bearing hole 41 through which the spindle 31 is inserted is provided on one side of the opening 21.
Is formed, and a receiving / fitting portion 4 that fits with the fitting support shaft body 3 is formed.

The fitting support shaft body 3 and the receiving fitting portion 4 constitute a pivotal support portion for pivotally supporting the opening / closing lid 2 by means of fitting, and the base of the opening / closing lid 2 is rotated around the support shaft 31. An opening / closing lid 2 is attached so that it can be opened and closed by moving it.

In the first embodiment, when the opening / closing lid 2 is closed, the engaging projections 33 are formed on the lower ends on both outer sides of the curved portion of the rotating arm 32 which constitutes the fitting wall of the fitting support shaft 3. Means that the engaging projection 33 engages and locks with the lower end 44 of the fitting wall of the receiving fitting portion 4 to hold the opening / closing lid 2 in the closed state, and when the opening / closing lid 2 is lifted and opened.
The rotating arm 32 rotates to disengage the engagement projection 33 from the lower end 44 of the fitting wall, and slides on the fitting wall surface of the receiving and fitting portion 4 to cause the upper end edge 45 of the fitting wall.
The engaging projection 33 is engaged and locked with the upper edge 45 to hold the opening / closing lid 2 in the open state.

The second embodiment is a fitting wall formed by a double wall of the receiving and fitting portion 4 formed by recessing the inner wall of the container body.
When the opening / closing lid 2 is in the closed state, the fitting support shaft body is provided with the bearing hole 41 facing the members 46, 46 and through which the support shaft 31 is inserted, and the taper protrusion 42 gradually protruding upward. Three
The hanging part 34 of the rotating arm 32 that constitutes the fitting wall of is a tapered protrusion.
When the opening / closing lid 2 is held in a closed state by fitting inside 42, and the opening / closing lid 2 is lifted and opened, the rotating arm 32 rotates and the hanging portion 34 changes from the lower side of the tapered protrusion 42 to a tapered surface. It rides and gradually slides upward to fit over the protruding end 43 of the tapered protrusion 42 to hold the opening / closing lid 2 in an open state.

Since the present invention is configured as described above, if the opening / closing lid 2 is moved up and down around the pivotal support, the opening / closing lid 2 is easily locked at the top dead center and the bottom dead center, and some vibration or vibration may occur. Even if a shock is applied, the open / closed state of the lid can be maintained.

[0011]

[Brief description of drawings]

FIG. 1 shows an embodiment of a lock structure for an opening / closing lid according to the present invention, and a part of a cross section showing a fitting state of a fitting support shaft and a receiving fitting portion at the time of closing the opening / closing lid in the first embodiment. FIG. 3 is an enlarged structural view of a pivotal support from the outer surface side.

FIG. 2 is also an enlarged structural view from the inner surface side of the pivotal support section showing a part of the lock structure when the opening / closing lid is opened in the first embodiment.

FIG. 3 is an enlarged portion with a cut-away cross-section showing a rotational state of the fitting support shaft and an engagement lock state of the engaging projection with the receiving and fitting portion when the opening / closing lid is closed in the first embodiment. It is a side view.

FIG. 4 is an enlarged portion with a cut-away cross-section showing a rotational state of the fitting support shaft and an engagement locked state of the engaging projection with the receiving and fitting portion when the opening / closing lid is opened in the first embodiment. It is a side view.

FIG. 5 is also an enlarged structural view from the inner surface side of the pivotal support, showing a part of the lock structure when the opening / closing lid is opened in the second embodiment.

FIG. 6 is an enlarged portion with a cut-away cross-section showing a rotational state of the fitting support shaft and an engagement locked state of the engaging projection with the receiving and fitting portion when the opening / closing lid is closed according to the second embodiment. It is a side view.

FIG. 7 is an enlarged portion with a cut-away cross-section showing a rotational state of the fitting support shaft and an engagement locked state of the engaging projection with the receiving and fitting portion when the opening / closing lid is opened in the second embodiment. It is a side view.

FIG. 8 is an overall perspective view of the container with an opening / closing lid in the first embodiment.

FIG. 9 is an overall perspective view of a container with an opening / closing lid according to a second embodiment.

[Explanation of symbols]

1 Container body with open / close lid 11 Open / close lid outer frame 12 Opening / closing lid inner frame 2 Open / close lid 3 Mating support 31 spindle 32 rotating arms 33 Hanging protrusion 34 Pivot of the rotating arm 4 receiving mating part 41 Bearing hole 42 Tapered protrusion 43 Projecting end of taper protrusion 44 Lower end of mating wall of mating part 45 Upper edge of mating wall of receiving mating part 46 Mating wall of mating part

Claims (3)

[Claims] 1. A fitting support shaft body is formed by fitting a fitting support shaft body provided on one side of an opening / closing lid and a receiving fitting part provided on one side of a main body opening, and a fitting support shaft body. Alternatively, an opening and closing characterized in that one of the fitting walls of the receiving fitting body is provided with an engaging projection and the other is provided with an engaging portion engaging with the engaging wall so that the engaging protrusion is forcibly engaged with the engaging portion by material elasticity. Lid lock structure 2. A hooking protrusion is provided on both outer sides of the fitting support shaft,
At the time of opening, the engagement protrusion engages with the upper edge corner of the receiving fitting part,
The locking structure for the opening / closing lid according to claim 1, wherein the locking structure is adapted to engage with a lower edge corner portion of the receiving / fitting portion when the lid is closed. 3. A tapered projection that gradually protrudes upward is provided on both insides of the receiving and fitting portion, and both outsides of the fitting support shaft slide on the tapered projection surface and are fitted at the top dead center. The lock structure for the opening / closing lid according to claim 1, wherein both outer edge corners of the support shaft and the upper edge of the tapered protrusion are engaged with each other.