JPS6012715Y2 - Box opening/closing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a box opening/closing device that allows the opening and closing of the box to be done smoothly and easily without any backlash and has an extremely good appearance. For reference, the details are as follows.

A lid body 3.3 is slidably hinged to the left and right edges of a storage box 2 on which a circumference flange 1 is formed.

A locking protrusion 6 that slidably engages with the bottom wall 5 of the auxiliary boxes 4, 4' held by the lids 3, 3' on the lower side of the front and rear peripheral flanges 1;
6' is provided.

Grip handles 7, 7' are provided on the clay walls of the lids 3, 3'.

In addition, there is a long hole 8.8' at the tip inside the side wall of the lid body 3, 3'.
The link plates 9, 9' formed thereon are pivotally connected at an angle of 10°10'.

The long holes 8, 8' of the link plates 9, 9' are connected to the auxiliary boxes 4, 4'.
It is fitted into a locking pin 11.11' protruding from the outside of the side wall.

12 is a hinge shaft; 13 is a reinforcing rib for the storage box 2; 14.
Reference numeral 14' denotes a pivot point for the grip levers 7, 7'.

Conventionally, link plates forming two parallel link mechanisms were provided on the outside of the front and rear walls of the storage box and on the outside of the front and rear walls of the auxiliary box, allowing the auxiliary box to be moved left and right, and the lid body of the auxiliary box could be vibrated. The box body was opened and closed by pivoting to the auxiliary box, but when the auxiliary box was moved outward to the left and right, a gap was created between the bottom wall of the auxiliary box and the earthen wall of the storage box due to the action of the link plate. As a result, the auxiliary box became loose and had the disadvantage that it could not be opened and closed properly.

The present invention has been constructed as described above in view of this drawback, and has the following features.

1 Since the bottom wall 5 of the auxiliary boxes 4, 4' is provided with locking protrusions 6, 6' that slidably engage with the lower side of the front and rear peripheral collars 1, the auxiliary boxes 4, 4' can be moved from side to side. Since the peripheral flange 1 of the retainer and the locking protrusions 6, 6' slide while being engaged, the bottom wall 5 of the auxiliary boxes 4, 4' and the soil of the storage box 2 are connected as in the conventional case. 4. There is no gap between the auxiliary box and the wall.
This will eliminate the looseness at 4'.

Therefore, the movement of the auxiliary boxes 4, 4' can be carried out extremely smoothly and easily.

2. To open the box, simply grasp the grip levers 7, 7' and pull outward to the left and right, and the lids 3, 3' will open, and the link plates 9, 9' and link plates 9, 9′ long hole 8,
8' causes the auxiliary box 4° 4' to move in the left and right outward directions until the locking protrusions 6, 6' come into contact with the left and right peripheral flanges 1, allowing the box to be opened.

On the other hand, when closing the box body, simply grasp the handle levers 7 and 7' and push them inward to the left and right, and the link plates 9, 9' and the elongated holes 8° and 8' of the link plates 9 and 9' are closed. Auxiliary box 4, 4'
moves inward, and then the lids 3, 3' vibrate to close the box.

When opening and closing like this, use the grip handles 7 and 7'.
Since the opening and closing can be performed with only a pulling and pushing operation, opening and closing can be performed even more easily.

3 When the box is closed, the auxiliary boxes 4, 4' and the link plates 9, 9' are completely covered by the lids 3, 3', forming a parallel link mechanism as in the conventional case. Since the individual link boards are not exposed, the appearance is simple,
It will look extremely good.

As described above, the present invention provides a box opening/closing device which allows the box to be opened and closed smoothly and easily without any backlash, and which also has an extremely good appearance and a uniform practical effect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view when the box is opened, Fig. 3 is a front sectional view when the box is closed, and Fig. 4 is a box A front sectional view when the body is opened, and FIG. 5 is a partially cutaway side view. 1... Surrounding guard, 2... Storage box, 3° body,
4,4'...Auxiliary box, 5...Bottom wall,...
...Locking protrusion, 7,7'...Grip handle lever, 8° hole,
9, 9' link plate, 10, 1 shaft, 11, 11'... locking pin. 3'...Lid 6.6'...8'...Length 0'...Central

Claims (1)

[Scope of utility model registration request] A lid body is slidably hinged to the left and right edges of the storage box forming a peripheral flange, and the lid body is slidably engaged with the bottom wall of the auxiliary box held by the lower side of the front and rear peripheral flange. A locking protrusion is provided, a grip lever is provided on the clay wall of the lid body, a link plate with a long hole at the tip is pivotally attached to the inside of the side wall of the lid body, and the long hole of this link plate is connected to the auxiliary box. A box opening/closing device, characterized in that the box opening/closing device is fitted into a locking pin protruding from the outside of a side wall.