JPS5850050Y2 - Temporary lock device for containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temporary locking device for containers with a pivoting lid.

Various types of temporary locking devices for holding the lid in the closed position are already known, but many of them have relatively complex shapes and structures and cannot be manufactured and assembled easily and inexpensively. The complexity of the structure increases the incidence of failure and impedes operational reliability.

Furthermore, if the shape and structure are complicated, the overall bulk will inevitably increase, and the increase in the installation storage space will lead to a decrease in the internal volume of the container body that can be effectively used to store items. Became.

Therefore, the purpose of the present invention is to have a simple shape and structure and a small bulk, so that manufacturing and assembly can be performed easily and at low cost.
It contributes to the expansion of effective internal volume and is light in operation.
It is an object of the present invention to provide a temporary lock device for containers that is also excellent in reliability.

The temporary locking device for containers of the present invention will be described below with reference to the drawings. A spring wire 5 stands upright with its base end 5a fixed to the other side of the lid 2, and a roller 6 is provided at the free end of the spring wire 5. A first slope 7 that slides on the roller 6 to bend the spring wire 5 and rotationally urge the lid 2 in the opening direction is provided at the tip thereof, and the first slope 7
A second slope 8 having an opposite slope is provided continuously to the first slope 7,
When the lid 2 is closed, a roller 6 is brought into pressure contact with the second slope 8 to urge the lid 2 to rotate about the pivot shaft 3 in the closing direction.

In the illustrated embodiment, the locking plate 4 is fixed perpendicularly to the inner surface 9 of the lid 2, and the spring wire 5 is swingably housed in the hollow part 11 of the side frame 10 of the container body 1. The end 5a is
The upper inner bottom part 10 of the side frame 10 is inserted through the washer cylinder 12.
a with screws 13.

A vertically elongated opening 14 is formed in the upper inner bottom part 10a,
A roller 6 rotatably attached to the upper end, that is, the free end 5b of the spring wire 5 is located within the opening 14.

The first slope 7 of the locking plate 4 is a straight line formed by increasing the width of the distal end of the locking plate from the distal end toward the base end, and the second slope 8 is formed by increasing the width of the distal end of the locking plate from the distal end toward the base end. It is formed into an arc shape suitable for holding.

These first slope 7 and second slope 8 are provided at the side edge on the side of the pivot 3 in the open state of FIG. 2.

When the lid 2 is rotated counterclockwise around the pivot shaft 3 to close the lid 2 on the container body 1 from the differential open state shown in FIG. When reached, the first slope 7 and the second slope 8 of the locking plate are on the side of the pivot 3, and the first slope 7 is facing downward.

Then, when the locking plate 4 enters the opening 14, the first
The slope 7 makes sliding contact with the roller 6 and causes the spring wire 5 to bend and swing toward the pivot 3.

When the lid 2 is further rotated in the closing direction against the spring repulsive force caused by this bending, the acting direction of the spring repulsive force changes at the moment the roller 6 crosses the boundary line 15 between the first slope 7 and the second slope. Reverse rotation, the spring wire 5 pushes the second slope 8 with the roller 6,
The lid 2 is rotated counterclockwise around the pivot 3, that is,
This results in rotational bias in the lid closing direction.

Therefore, the lid 2 is automatically drawn into the closed position, and is held in this position precisely.

On the other hand, when opening the lid 2 by rotating it clockwise around the pivot 3 from the closed state shown in FIG. 15, the direction of action of the spring repulsive force is changed, and the spring wire 5 pushes the first slope 7 with the roller 6 to move the lid 2 clockwise around the pivot 3, that is, the lid It will be biased to rotate in the opening direction.

Therefore, the lid 2 is quickly flipped up to the open position.

As described above, the temporary locking device for containers of the present invention includes a locking plate 4 that is erected on one side of the container body 1 and the lid 2, and a locking plate 4 that is erected on one side of the container body 1 and the lid 2.
a spring wire 5 that is erected on the other side and has a first slope 7 and a second slope 8; and a tip of this spring wire 5, that is, a free end 5b.
Since the number of component parts is extremely small and the shape and structure are simple, the production and assembly of this device can be done very easily and at low cost. .

In addition, since it has a simplified configuration as described above and the overall bulk of the device is very small, the space required for installing and storing the device can be reduced by, for example, incorporating it into the side frame of the container body. It is also possible to increase the effective internal volume of the container body and lid.

Furthermore, in the temporary locking device of the present invention, the first slope 7 of the locking plate 4
is provided on the tip side of the side edge of the locking plate, while the second slope 8 is provided with an inclination opposite to the first slope 7 and is continuous with the first slope 7, and the roller 6 is connected to the first slope 7. When pressing against
The spring repulsive force of the bent spring wire 5' is applied in the lid opening direction, and when the roller 6 comes into pressure contact with the second slope 8, the repulsive force of the bent spring wire 5 is applied in the lid closing direction. Lightness and precision in opening and closing the lid 2 can be easily achieved.

In addition, this device has an extremely simple configuration, and each component has a shape and structure that leaves no room for failure, so this device always operates stably and has high operational reliability. The practical value is enormous.

Note that the present invention can be implemented in various ways, and while the locking plate is provided on the container body, the spring wire and the roller can also be provided on the lid side, and the first slope and the second slope may be It can also be formed on the opposite side edge of the embodiment, that is, on the side edge of the locking plate that is far from the pivot when the lid is fully open.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the container with the lid fully open, Fig. 2 is an enlarged cross-sectional view of the main part along line A-A' in Fig. 1, and Fig. 3 is a plan view of the container with the lid fully open. 4 is an enlarged sectional view of the main part immediately before the lid is closed, FIG. 4 is an enlarged sectional view of the main part when the lid is fully open, and FIG. 5 is an exploded perspective view of each component of the temporary locking device. 1...container body, 2...lid, 3...
... Pivot, 4 ... Locking plate, 5 ... Spring wire, 6 ... Roller, 7 ... First slope, 8 ... . . . second slope, 12 . . . washer tube, 14 .

Claims (1)

[Scope of utility model registration request] A locking plate 4 is erected on one side of the container body 1 and the lid 2, which are connected to each other by a pivot 3; and a spring wire 5 is erected on the other side of the container body 1 and the lid 2 with a base end 5a fixed. and a roller 6 installed at the free end of the spring wire 5, and the side edge of the locking plate 4 is in sliding contact with the roller 6 to bend the spring wire 5 and open the lid 2. A first slope 7 that rotates in the direction is provided at the tip, and a second slope 8 having an inclination opposite to the first slope 7 is provided in succession to the first slope 7. When the lid 2 is closed, the first slope 7 A temporary locking device for a container in which a roller 6 is brought into pressure contact with a two slope 8 to rotate and bias the lid 2 in the closing direction about the pivot shaft 3.