JPH07310828A - Packing for closed container - Google Patents

Abstract

PURPOSE:To prevent jumping out of a packing during release of the door of a closed container and to facilitate a work to mount a packing. CONSTITUTION:A dovetail groove 2b in a given shape is peripherally formed in one of the inner surface of a door with which the opening part 2a of the can body 2 of a closed container is closed and the front of the can body 2 having the opening part 2a. A packing 5 approximately in an Y-shape in cross section and having a groove 5a formed in a given shape in a central part is inserted in the dovetail groove 2b and a spacer 6 is pressed in the groove 5a of the packing 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a hermetically sealed container such as a steam sterilizer or a vacuum cooling device.

[0002]

2. Description of the Related Art As is well known, a packing 11 for a closed container.
Has a substantially Y-shaped cross section as shown in FIG.
By adsorbing the Y-shaped concave portion, the inner surface of the door and the front surface of the opening are sealed. This packing 11
Insert the groove 1 in either the inner surface of the door or the front surface of the opening.
2b is provided around the groove 12a, the adhesive 13 is applied to the bottom of the groove 12a, and then the packing 11 is inserted. In the figure, 12 is a can and 12a is an opening.

However, the Y-shaped packing 11 is used.
When the door is closed, the Y-shaped groove closely adheres like a suction cup to seal the opening 12a. However, due to the suction cup action, the packing 11 may pop out due to a defective application of the adhesive 13 when the door is opened. The defective application of the adhesive 13 is caused by individual differences in the adhesive application work. When the packing 11 pops out, the inside of the groove 12b is cleaned, the adhesive is applied again, and then the adhesive is inserted. When the packing 11 deteriorates and is to be replaced with a new packing, the groove portion 12b is cleaned and the adhesive is applied and then a new one is inserted as described above. ) Is required. Further, since it takes a long time (about 8 hours) for the adhesive to be completely adhered after the packing is inserted, improvement of the packing is required.

[0004]

SUMMARY OF THE INVENTION As described above, according to the present invention, the packing is crimped without using an adhesive in order to make the packing pop out due to a defective application of the adhesive or to facilitate the work at the time of packing replacement. An object of the present invention is to provide a packing for a hermetically sealed container.

[0005]

That is, the present invention has been made to solve the above-mentioned problems, and has an inner surface of a door for sealing an opening of a can body of a closed container or the opening. A dovetail groove having a predetermined shape is provided around one of the front surfaces of the can body, and a packing having a substantially Y-shaped cross section and a groove having a predetermined shape at the center is inserted into the dovetail groove. The feature is that the spacer is pressed into the groove.

[0006]

According to the present invention, the lower part of the packing is expanded by inserting the packing into the dovetail groove having the predetermined shape and press-fitting the spacer into the groove having the predetermined shape formed in the central portion of the packing. The packing can be crimped inside.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing an entire steam sterilizer 1 for sterilizing and disinfecting medical instruments and the like as an airtight container embodying the present invention. The steam sterilizer 1 includes a can body 2, a door 3 partially attached to the can body 2 by a hinge (not shown) in a single-opening manner, and the door 3 hermetically seals the opening of the can body 2. The door opening / closing device (not shown) is provided with a door tightening mechanism for mechanically sealing. Reference numeral 4 in the drawing denotes a handle of the door tightening mechanism.

FIG. 2 is an explanatory view of the can body 2 viewed from the front side. A dovetail groove having a predetermined shape is provided around the front opening 2a of the can body 2, and the packing 5 according to the present invention is provided in the dovetail groove. Have been inserted. FIG. 3 is an explanatory view of a cross section taken along the line AA of FIG. 2, and the packing 5 has a cross section made of a synthetic resin in a dovetail groove 2b provided around the front surface of the can body 2 as shown in FIG. By inserting a packing 5 having a substantially Y-shaped shape and a groove 5a having a predetermined shape in the center, and inserting a spacer 6 made of a round bar of a predetermined size into the groove 5a of the packing 5,
The lower part of the packing 5 is expanded so that the packing 5 is inserted into the dovetail groove 2b.
Can be crimped inside.

The operation of the packing 4 configured as described above will be described. After storing the object to be sterilized in the can 2, close the door 3
By rotating the handle 4 of the door tightening mechanism, the Y of the packing 5 provided around the opening 2a of the can body 2 is rotated.
The letter-shaped surface is pressed by the inner surface of the door 3 to seal the opening 2a.
When the door 3 is opened, the handle 4 is rotated in the reverse direction to open the door 3. However, when the door is opened, the packing 5 is pressure-bonded to the dovetail groove 2b through the spacer 6, and thus the packing 5 is opened. Never jumps out.

[0010]

As described above, according to the present invention, a packing having a Y-shaped cross section and a groove having a predetermined shape in the center is inserted into the dovetail groove having a predetermined shape, and the dovetail groove is inserted into the groove of the packing. Since the packing is pressed into the dovetail groove with the spacer pressed in, the packing does not pop out due to defective adhesion when the door is opened, and the application of adhesive for packing is no longer required as in the past, so packing installation work is not required. Can be facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire steam sterilizer embodying the present invention.

FIG. 2 is an explanatory view of a can body of the steam sterilizer of FIG. 1 as seen from the front.

FIG. 3 is an explanatory diagram in which the AA plane of FIG. 2 is cross-sectioned.

FIG. 4 is an explanatory diagram showing a state in which packing is attached to a can body of a conventional steam sterilizer.

[Explanation of symbols]

 2 can body 2a opening 2b dovetail groove 3 door 5 packing 5a groove 6 spacer

Claims (1)

[Claims] 1. A dovetail groove 2b having a predetermined shape is provided around either an inner surface of a door 3 for sealing an opening 2a of a can body 2 of a closed container or a front surface of the can body 2 having the opening 2a. The packing 5 having a substantially Y-shaped cross section and a groove 5a having a predetermined shape in the center is inserted into the dovetail groove 2b, and the spacer 6 is press-fit into the groove 5a of the packing 5. Packing for closed containers.