Cam mechanism and door opening/closing mechanism
A cam mechanism, door opening and closing technology, applied in door/window fittings, building structures, household refrigeration devices, etc., can solve the problems of a large number of parts, deteriorating operability, and reducing the reliability of door opening and closing mechanisms, etc.
Inactive Publication Date: 2004-06-30
SHARP KK
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Problems solved by technology
[0009] As a result, when opening the door, it is necessary to overcome the frictional force of the lever member and the large operating force of the spring force, which brings about the problem of deterioration of operability.
In addition, since a lever member or a spring is required, the number of parts is large and the assembly process is numerous. As a result, not only the cost of the door opening and closing mechanism is high, but also there is a problem that the reliability of the door opening and closing mechanism is lowered.
Method used
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Embodiment Construction
[0057] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a top cross-sectional view showing the door opening and closing mechanism of the first embodiment. On the body side of a refrigerator or the like, an opening 1 a forming an outer wall is provided in the housing 1 . The opening 1 a is bounded by the middle, the left side is covered by the left door 2 , and the right side is covered by the right door 3 . One end of the left door 2 and the right door is provided with handles 4,5.
[0058] The other ends of the left door 2 and the right door 3 are pivotally supported by the rotating shafts 1b, 1c, and the handles 4, 5 can be opened towards both sides. The rotating shafts 1b, 1c are relatively opposite to the left door 2 and the Right door 3 makes relative sliding movement. In addition, seals 6 and 7 are attached to the gaps between the left door 2 and the right door 3, respectively. Magnets (not shown) are ...
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A cam mechanism has different portions thereof arranged on a main unit and on a door. When the door is closed, a hinge pin is locked at one end of a hinge groove, keeping the cam mechanism in a first locked position. As the door is opened, the hinge pin is guided by the hinge groove and a guide pin is guided by a guide groove, permitting the door to rotate and slide. Thus, the hinge pin is locked at the other end of the hinge groove, bringing the cam mechanism to a second locked position. A boss slides on a rib and thereby maintains the second locked position, permitting the door to rotate about the hinge pin. This structure helps realize a door opening / closing mechanism with enhanced operability at reduced cost.
Description
technical field [0001] The present invention relates to a cam mechanism provided on a machine body and a rotating body to displace the pivot position of the rotating body through the rotation of the rotating body, and a door opening and closing mechanism for opening and closing the opening of a storage room of a refrigerator by rotating. Background technique [0002] In the conventional door opening and closing mechanism separated from the middle to the left and right, a partition is provided at the center of the opening of the refrigerator, and the left and right doors contact the partition to close the opening. The partition board becomes an obstacle when working through the opening. Therefore, the bulkhead is eliminated, and the gap generated between the left and right doors is blocked by the seal. [0003] However, if seals are provided, when one door is opened, the seal mounted on the door rubs against the seal mounted on the other door. The frictional force generated...
Claims
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IPC IPC(8): E05D3/02E05D11/10F25D23/02
CPCE05D3/022E05D11/1014F25D2323/021F25D23/028F25D2323/024E05Y2900/31F25D23/02
Inventor 义川隆司藤林五男吉村宏
Owner SHARP KK