Dust-and-water proof casing
First Claim
1. A casing comprising two casing members, one of which is fittable to the other casing member to form the casing, wherein a dust-and-water proof structure provided at a fitting portion comprises:
- a groove formed continuously along periphery of a dust-and-water proof area of the one casing member;
an elongated protrusion formed at the position to be inserted in the groove when the two casing members are fitted, said elongated protrusion having a width smaller than the groove width; and
spherical elastic bodies each having the same diameter as the groove width, which are inserted and continuously arranged in the groove without gaps therebetween.
1 Assignment
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Accused Products
Abstract
In order to seal an internal space of a casing having an upper and lower casing members, a continuous groove with a semicircular cross-section is formed around a dust-and-water proof area of the lower casing member, and a continuous elongated protrusion is formed on the portion of the upper casing member corresponding to the groove, so that the protrusion is inserted in the groove when two casing members are engaged. Spherical sealing members each having the same diameter as the groove width are arrayed continuously in the groove without gaps therebetween. The width of the elongated protrusion is configured to be smaller than the groove width, so that the spherical sealing members compressed when the casing members are fitted are deformed to enter a space defined between the elongated protrusion and the groove, to thereby form a dust-and-water proof structure. Inserting the spherical sealing members in the groove is easy.
97 Citations
17 Claims
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1. A casing comprising two casing members, one of which is fittable to the other casing member to form the casing, wherein a dust-and-water proof structure provided at a fitting portion comprises:
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a groove formed continuously along periphery of a dust-and-water proof area of the one casing member; an elongated protrusion formed at the position to be inserted in the groove when the two casing members are fitted, said elongated protrusion having a width smaller than the groove width; and spherical elastic bodies each having the same diameter as the groove width, which are inserted and continuously arranged in the groove without gaps therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13)
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11. A casing comprising two casing members, one of which is fittable to the other casing member to form the casing, wherein a dust-and-water proof structure provided at a fitting portion comprises:
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a groove formed continuously along periphery of a dust-and-water proof area of the one casing member; an elongated protrusion formed at the position to be inserted in the groove when the two casing members are fitted, said elongated protrusion having a width smaller than the groove width; and spherical elastic bodies each having a diameter in the range of 70% to 100% of the groove width, which are inserted and continuously arranged in the groove without gaps therebetween. - View Dependent Claims (12)
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- 14. An electronic device, comprising a casing having two interfittable casing members, a groove formed continuously at a periphery of a dust-and-water proof area of one of the casing members, an elongated protrusion having a width narrower than the groove width, and formed in a position where it is inserted in the groove when the two casing members are fitted, and spherical elastic bodies each having the same diameter as the groove width, which are continuously arranged in the groove without gaps therebetween.
- 16. An electronic device, comprising a casing having two interfittable casing members, a groove formed continuously at a periphery of a dust-and-water proof area of one of the casing members, an elongated protrusion having a width narrower than the groove width, and formed in a position where it is inserted in the groove when the two casing members are fitted, and spherical elastic bodies each having a diameter in the range of 70% to 100% of the groove width, which are continuously arranged in the groove without gaps therebetween.
Specification