JPH02625Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention provides a heat insulating door body for opening and closing the top opening of the insulation box body, and the inner surface of the door body is in contact with the end face of the opening on the entire circumference. The present invention relates to an improvement in a sealing device that is provided with a gasket that is in contact with the box, and in which the gasket sufficiently seals the inside of the heat insulating box body.

(B) Prior Art A heat insulating box body with an opening on the top is provided with an insulating door for opening and closing the opening, and a gasket is provided on the inner surface of the door to abut against the end face of the opening, as disclosed in, for example, Japanese Utility Model Publication No. 57-33350. No. 57-54550.

However, in these prior art techniques, the gasket only comes into contact with the opening end face, resulting in a large thermal loss, and dust tends to land on the opening end face and enter the inside of the heat insulating box body.

(c) Problems to be solved by the invention The invention has the following advantages: thermal loss within the insulation box body is small, dust can be effectively prevented from entering the insulation box body, and the gasket can be removed even when the door body is opened and closed. The purpose is to provide a structure that is difficult to deform or come off.

(d) Means for solving the problem As shown in Fig. 1, the present invention has an annular gasket 13 that contacts the end face of the upper opening 5 of the insulation box body 1 over the entire circumference, and is pivotally supported on the body 1. In the insulating box body in which the opening 5 is opened and closed by the insulating door body 6, the door body 6 includes a cover portion 9A extending from the outside to a position facing the outer surface of the main body 1 so as to cover the end face of the opening 5, and a gasket. 13 is provided with a mounting groove 18 into which the hook-shaped mounting portion 17 provided on the base 15 of the gasket 13 is fitted.
includes an inner fin 21 that extends inward from the base 15 and comes into contact with the inner surface of the door body 6; an elastic bag 14 that projects from the base 15 and comes into contact with the end surface of the opening 5; A holding groove 2 is disposed along the inner surface of the cover part 9A, and the tip end thereof is provided in the cover part 9A.
5 and a thick cover side 19 that engages with cover side 1
9 and an outer fin 20 that extends inward from the opening 5 and comes into contact with the outer end of the end surface of the opening 5.
The tip is in contact with or close to the bag portion 14.

(e) Effect In the present invention, in the above structure, when the door body 6 is closed, the bag portion 14 contacts the end surface of the opening 5, and the outer fin 20 sufficiently contacts the outer end of the end surface of the opening 5. . Further, the inner fin 21 is in contact with the inner surface of the door body 6. Gasket 13 thus achieves a seal between door body 6 and body 1 over its entire annular length. In particular, the outer fin 20 extends from the thick cover side 19 to the outer edge of the end face of the opening 5 toward the bag portion 14, so it is less likely to be caught on the main body 1, and the door body 6 can be opened and closed smoothly. Side 1
9 will not come off from the holding groove 25.

(F) Embodiments Examples of the present invention will be described with reference to FIGS. 1 to 3. This example shows a water cooler. In this case, 1 is a heat insulating box main body in which a heat insulating material 4 is filled between an inner box 2 and an outer box 3, and has an opening 5 on the top surface, which is rotated on one side of the main body 1 to open and close the opening 5. The heat insulating door body 6 is pivotally supported so as to be movable. The door body 6 has an inner plate 7 and an outer plate 8 connected by a synthetic resin frame 9 disposed in an annular manner.
The structure is such that the space created by this is filled with a heat insulating material 10. The main body 1 has an annular synthetic resin frame 11 extending between the inner box 2 and the outer box 3 so as to form the end of the opening 5. An end surface 12 of the opening 5 formed by the frame 11 forms a surface that is one step lower than the inside of the main body 1, and the elastic bag portion 14 of the gasket 13 comes into contact with this surface. Further, the upper end of the outer box 3 is bent toward the inner box 2 side to form a stepped portion 3A at the upper end of the main body 1. On the other hand, the frame 9 is integrally formed with a cover portion 9A extending to the step portion 3A and covering the end surface 12 of the opening 5 from the outside, and forming a mounting surface 16 for the base portion 15 of the gasket 13 in a portion facing the end surface 12. ing. The base 15 is attached to the mounting surface 16.
A mounting groove 18 into which the hook-shaped mounting portion 17 provided in the
is formed. Gasket 13 further includes base 15
A thick cover side 19 extends substantially perpendicularly from the cover side so as to closely fit the inner surface of the cover part 9A, a retaining groove 25 formed in the cover part 9A so that the tip of the cover side 19 engages, and The opening end surface 12 extends inward so as to contact or be close to the bag portion 14.
an outer fin 20 that abuts the outer end of the inner plate 7; an inner fin 21 that extends inward from the base 15 and abuts the inner surface of the inner plate 7; Since the tip of the outer fin 20 extends until it comes close to or comes into contact with the outer side of the bag portion 14, dirt can be easily wiped off. The gasket 13 has the above-mentioned parts integrally formed and is arranged in a rectangular shape on the inner surface of the door body 6 as a whole to form an annular shape. Drinking water is placed in the main body 1 and cooled to a predetermined temperature range by a cooler 27 that is a part of the refrigeration device 23 .
24 is a valve device for taking out drinking water from the main body 1.

In this configuration, when the door body 16 is closed, the bag part 14 comes into contact with the lower end face 12 of the frame body 11 as shown in FIG. It extends toward the frame body 11 and comes into contact with the frame body 11 . For this purpose, a double heat-insulating space is formed between the space inside the bag portion 14 and the space 26 inside the outer fin 20, and a good heat-insulating seal between the inside and outside of the main body 1 is achieved. Further, the seal between the frame body 9 and the gasket 13 is formed by the inner fin 21, the base 15, and the cover side 19.
and is made well. Further, when a handle is not provided separately, the door body 6 can be opened and closed by hooking a finger on the lower end of the cover portion 9A using the stepped portion 3A. Even when the door body 6 is opened and closed, the outer fin 20 is smooth without getting caught on the frame 11, and even if the outer fin 20 is strongly rubbed against the frame 11, the tip of the cover side 19 is retained by the retaining groove 25. Since there is no deformation of the entire gasket 13, there is no fear that the gasket 13 will come off simply by engaging the hook-shaped mounting portion in the mounting groove 18, and the mounting becomes easy.
Further, the cover portion 9A extends to a point facing the outer surface of the main body 1 so as to cover the opening end surface 12 from the outside, and the outer fin 20 closes the upper end of the gap between the cover portion 9A and the main body 1. Prevents dust from entering the opening end face.

(G) Effects of the invention According to the invention, the outer fin of a specific configuration is provided on the outside of the bag portion, which improves the heat insulation, and the relationship between the cover portion of the door body and the outer fin allows the opening end surface of the main body to be This prevents dust from entering the body and keeps the inside of the body clean. In addition, the gasket is installed by fitting or engaging the hook-shaped mounting part into the mounting groove of the door body and the tip of the cover side into the holding groove of the cover part, so installation is extremely easy. In addition, strong installation is possible. The thick cover side that is the base of this outer fin is firmly held and touches the outer end of the opening end face and faces the bag, so it fits well with the main body and deforms when the door body is opened and closed. This also prevents the gasket from coming off. In particular, since the outer fins are also hidden by the cover portion, there is less risk of the outer fins being torn by contact with fingers, etc., and the appearance is also improved.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention. Figure 1 is a vertical cross-sectional side view of the top opening end of the insulating box, Figure 2 is a front perspective view of the water cooler, and Figure 3 is a central vertical side view of Figure 1. It is a diagram. DESCRIPTION OF SYMBOLS 1... Heat insulation box body, 5... Top opening, 6... Door body, 9A... Cover portion, 12... Opening end surface, 13
...Gasket, 14...Bag part, 15...Base part,
17...Hook-shaped mounting part, 18...Mounting groove, 19...
Cover side, 20...outer fin, 21...inner fin.

Claims (1)

[Scope of utility model registration request] In the insulating box body, the opening is opened and closed by an insulating door body that is pivotally supported on the body and has an annular gasket that abuts the entire circumference of the upper opening end face of the insulating box body, and the door body is connected to the opening end face of the insulating box body. a cover portion extending from the outside to a position facing the outer surface of the main body, and a mounting groove into which a hook-shaped mounting portion provided at the base of the gasket is fitted; an inner fin that extends toward the side and abuts the inner surface of the door body; an elastic bag portion that protrudes from the base portion and abuts the opening end surface; and an elastic bag portion that extends outwardly from the base portion and is disposed along the inner surface of the cover portion. a thick cover side whose distal end engages with a retaining groove formed at the distal end of the cover part; and a thick cover side extending inward from the cover side so as to come into contact with or close to the bag part and outside the opening end surface. A sealing device for a heat insulating box body comprising an outer fin that abuts the end.