JP2620957B2 - Storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a storage container for articles and the like, and more particularly to a technique capable of reducing the impact of closing a lid that can be naturally closed by the action of a weight.

<Prior Art> Conventionally, as a storage container for articles and the like, an opening formed in a peripheral wall of a horizontally-oriented cylindrical container body is opened and closed by a cylindrical lid member rotatably disposed in the container body. Configurations are known.

In such a storage container, when a weight for applying a rotational torque for rotating the lid member in the closing direction is provided, and the lid member is naturally closed just by releasing the hand, the impact when the lid member is closed Becomes larger.

Therefore, it is necessary to provide a mechanism for alleviating this impact.

<Problems to be Solved by the Invention> Conventionally, as a mechanism for alleviating this impact, it is conceivable to use a mainspring spring or the like, but the closing operation of the lid member does not generate a recoil at the end point of the closing operation of the lid member. In order to stabilize the torque, it is necessary to perform a troublesome balance adjustment between the rotational torque by the spring and the rotational torque by the weight.

In view of the above-described conventional circumstances, the present invention provides a storage container provided so as to perform a closing operation by applying a rotating torque by weight to an opening / closing lid at an entrance of an article or the like. While closing the lid,
An object is to stably reduce the impact at the end end.

<Means for Solving the Problems> For this reason, the storage container of the present invention is composed of a cylindrical container main body having a part of the peripheral wall opened, and a left and right shaft member arranged on a substantially central axis of the container main body. A cover member rotatably and automatically supported within the container body, and a cylindrical peripheral wall capable of opening and closing the opening of the container body, and a cover member provided at an appropriate position of the cover member, and rotating the cover member in the closing direction. A weight that applies a rotating torque to be moved, a large-diameter portion formed on at least a part of at least one shaft member, a casing that rotatably fits and supports the large-diameter portion, and fitting of the large-diameter portion A rotary damper made of a liquid filled in the sliding portion in a liquid-tight manner, and having a casing fixed to one of the end wall of the container body and the end wall of the lid member and a shaft member fixed to the other. Storage container ".

<Operation> In such a configuration, a rotational torque is applied to the lid member by the action of the weight, and the lid is naturally rotated and closed simply by releasing the hand from the lid member.

At the time of closing rotation of the lid member, the casing and the shaft member of the rotary damper relatively rotate, and are mainly subjected to a damping action by viscous resistance of the liquid filled in the sliding surfaces of the two members, and the lid member slowly moves. And the impact at the end of closing is reduced.

<Example> Next, an example of the present invention will be described with reference to the drawings.

1 to 3, reference numeral 1 denotes a cylindrical container body having a part of a peripheral wall opened, 2 denotes a cylindrical body having a substantially concentric cross section with the container body 1, and a part of the peripheral wall has a cutout opening. The container 1 is rotatably supported on a substantially central axis in the container main body 1 and is provided so as to open and close the opening 1a of the container main body 1 with its peripheral wall. 3 is the lid member 2
Weight attached to the side plate 2C for applying a rotational torque for rotating the lid member 2 in the closing direction (arrow m) in a normal state. Reference numeral 4 denotes a rotation damper for reducing the rotation speed of the cover member 2 and the impact when the cover member 2 is closed.

Here, the peripheral wall of the container body 1 is cut along the longitudinal direction, for example, in a range of 100 degrees from the top around the central axis, and the cut portion forms the opening 1a. A mounting support plate member 5 for mounting and supporting the container body 1 is fixedly attached to the bottom surface of the container body 1.

The lid member 2 includes a rotating drum 2A that forms a cylindrical peripheral wall and a pair of circular side plates 2B and 2C that form both end walls. The rotating drum 2A is cut out, for example, in a range of 170 degrees with respect to the central axis, and the cut-out portion allows the opening 2a to be cut out.
Is configured. The side plates 2B and 2C have a flange formed on the peripheral edge, and both ends of the rotary drum 2A are fixed to the outer peripheral portion by welding 6 or the like.

One end of a support shaft 7 is fixed to the center of the outer surface of one side plate 2B of the cover member 2, and the other end of the support shaft 7 is rotatably supported by a bearing portion 8 on an end wall of the container body 1. The other side plate 2C of the lid member 2 is rotatably supported by a shaft portion of the rotary damper 4 described later.

The weight 3 is fixed to an appropriate position on the outer surface of one side plate 2C so as to apply a rotational torque in the closing direction to the lid member 2.

The rotary damper 4 is interposed in a space formed between the inner surface of the end wall of the container body 1 and the side plate 2C of the lid member 2,
A shaft member 10 having a large diameter portion 18 as a part, and a casing 9 for rotatably fitting and supporting the large diameter portion 18 are provided.

On the fitting surface of the casing 9 and the large-diameter portion 18, a filling portion 12 having a predetermined width formed by being sealed in a liquid-tight manner by a pair of O-rings 11 is formed. The liquid is hermetically filled. The casing 9 of the rotary damper 4 is fixed to either the end wall of the container body 1 or the outer surface of one side plate 2C of the lid member 2, and the shaft member 10 is fixed to the other.

In the present embodiment, a flange 13 projecting in the outer peripheral direction is integrally formed at one end of the casing 9, and the flange 13 is attached to an outer surface of the side plate 2 </ b> C by a fastener such as a bolt and a nut.
Fastened and fixed by 14. At one end of the shaft member 10, a shaft base 15 having a male thread 15a is formed.
Is formed on the end wall of the container body 1 and is screwed and fixed to the screw portion 16. The other end of the shaft member 10 is supported by a shaft hole 17 formed in an end wall of the casing 9, and a shaft portion 19 having a male screw portion 19a is provided at the front end. This shaft part 19
Is loosely inserted into a through hole formed in the side plate 2C, and a nut 20 is fitted into the male screw portion 19a. Therefore, the side plate 2C is rotatably supported by the shaft member 10 via the casing 9.

In such a configuration, the opening 1a of the container body 1 is opened and closed by the rotation of the rotating drum 2A by the rotation of the lid member 2. A rotational torque is applied to the lid member 2 in the closing direction by the action of the weight 3, and the lid member 2 naturally rotates and closes simply by releasing the hand.

When the lid member 2 is closed, the casing 9 and the shaft member 10 of the rotary damper 4 rotate relative to each other. Therefore, the lid member 2 is provided with the filling portion 12 formed on the fitting sliding surface of the members 9 and 18.
The damper is subjected to a damping action by viscous resistance or the like of the liquid filled in the container, and a slow closing operation is performed.
The shock when closing is reduced.

Here, in FIG. 4 schematically showing the side surface of the lid member 2, the load W affecting the rotational torque, the A line
The angle θ formed by the line, the radius R of the side plate, the angle α _o from the center line 1 to the A line, the angle x at which the lid member 2 is moved from the initial position, and the distance S from the center of the side plates 2B and 2C to the weight 3 are designed. Determined above, the initial angle γ from the center line l to this weight
By adjusting _o , the rotational torque when the cover member 2 is moved from the initial position by the angle x can be set small.

In this case, it keeps to easily set the weight 3 and the initial angle gamma _o.

By reducing the rotation torque when the lid member 2 is moved from the initial position by the angle x in this manner, the viscosity coefficient of the rotation damper 4 can be reduced, so that the rotation damper 4 can be downsized.

In particular, if the rotation torque is reduced at an angle where the lid member 2 is closed, the rotation in the middle is fast, and a slow rotation state is obtained near the closing time.

According to such a configuration, the rotary damper 4 utilizing the viscous resistance of the liquid or the like is applied as means for reducing the impact when the lid member 2 is closed. It is possible to stabilize the closing operation of the lid member 2 without generating an impact sound or a recoil, and it is not necessary to perform a troublesome balance adjustment between the rotating torque by the weight and the buffer by the spring as in the related art.

<Effects of the Invention> As described above, according to the present invention, in a storage container configured to apply a rotating torque by weight to a lid for opening and closing an entrance of an article or the like so as to perform a closing operation, when the lid is closed. As a means to reduce the impact of shock, a rotary damper using the viscous resistance of the liquid is applied, so that the closing operation of the lid member can be stabilized, and a troublesome balance like damping using a spring can be achieved. There are advantages such as no need for adjustment.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of a storage container according to the present invention,
FIG. 2 is a perspective view of a lid member in the embodiment, FIG. 3 is a central longitudinal sectional view of a rotary damper in the embodiment, and FIG. 4 is an operation explanatory view schematically showing a side surface of the lid member. DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Lid member 3 ... Weight 4 ... Rotary damper 9 ... Casing 10 ... Shaft member 11 ... O-ring 12 ... Filling part

Claims (1)

(57) [Claims] 1. A cylindrical container main body having a partly open peripheral wall, and left and right shaft members disposed on a substantially central axis of the container main body so as to be rotatably supported in the container main body. A lid member capable of opening and closing the opening of the container main body with a cylindrical peripheral wall; and a weight provided at an appropriate position of the lid member and applying a rotational torque for rotating the lid member in a closing direction. A large-diameter portion formed in a part of the shaft member, a casing that rotatably fits and supports the large-diameter portion, and a liquid that is liquid-tightly filled into the fitting sliding portion of the large-diameter portion, A storage container, comprising: a casing fixed to one of an end wall of the container body and an end wall of the lid member; and a damper fixed to a shaft member, respectively, to the other.