JPS6381178U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the opening/closing door pivot structure according to the present invention, and FIG. 1 is a schematic perspective view of a refrigerator employing the opening/closing door pivot structure according to one embodiment of the present invention. , FIG. 2 is a partial plan view of the refrigerator according to the embodiment shown in FIG. 1, FIG. 3 is a partial plan view of the refrigerator shown in FIG. 2 with the door open, and FIG. FIG. 5 is a partial plan view of a refrigerator employing an embodiment of the pivot structure of the opening/closing door according to the invention; FIG. 5 is a partial plan view of the refrigerator shown in FIG. 4 with the opening/closing door open; FIG. 6a , b is an explanatory diagram showing the sliding mechanism of the pivot pin shown in FIG. 4, FIG. 7 is an explanatory diagram showing the relationship between the pivot pin and the guide groove used in the embodiment shown in FIG. 4, and FIG. 9 is a side view showing an example of the pivot structure of the opening/closing door in a refrigerator according to the prior art;
This figure is a plan view of the refrigerator shown in FIG. 8 with the opening/closing door open, and FIG. 10 is a perspective view showing another example of the pivot structure of the opening/closing door in the refrigerator according to the prior art. 10... Housing, 11... Opening, 22... Opening/closing door, 3
2...Link rod.

Claims (1)

[Claims for Utility Model Registration] (1) In a pivoting structure for an opening/closing door in a storage, etc., in which an opening/closing door 22 is pivotally supported in an opening 11 of a housing 10 so as to be able to open and close freely, the opening of the housing 10 11 side and the opening/closing door 22 are connected by a parallel link mechanism 27. (2) The parallel link mechanism 27 includes a pair of mounting plates 30, 30 arranged at a predetermined interval above the opening 11 of the housing 10, and pivot pins 28, 28 on the mounting plates 30, 30.
link rods 32, one end of which is pivotally supported via the link rods 32,
32, which are arranged at predetermined intervals on the upper end surface of the opening/closing door 22, and are connected to the link rod 32 via pivot pins 34, 34.
, 32, respectively.
6, 36. A pivot structure for an opening/closing door as set forth in claim 1 of the utility model registration claim. (3) The parallel link mechanism 27 is slidably inserted into a pair of guide grooves 38, 38 that are aligned and bored at a predetermined interval on the upper surface of the housing 10, respectively. One end is provided with pivot pins 28, 28, and the other end is pivotally supported via pivot pins 34, 34 on mounting plates 36, 36 arranged at a predetermined interval on the upper end surface of the opening/closing door 22. The pivot structure for an opening/closing door according to claim 1, which is comprised of link rods 32, 32, and the following. (4) At both ends of the guide groove 38, there are rotating parts 40 having a width _l2 wider than the width _l1 of the guide groove 38,
40 is formed. A pivot structure for an opening/closing door according to claim 1 or 3 of the utility model registration claim. (5) The pivot pin 28 has one end formed in an elliptical shape, and the long axis of the elliptical portion 28a is set to be longer than the width _l1 of the guide groove 38, and the short axis thereof is set to be longer than the width l1 of the guide groove 38. The pivot structure for an opening/closing door according to any one of claims 1, 3, and 4, which is set to have a width shorter than _l1 .