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A flexible pipe joint apparatus for use in a fluid (e.g., water) transport pipe system for maximally absorbing an external force such as a compression or tensile force applied to a pipe of the fluid transport system due to an earthquake, differential settlement, thermal expansion or contraction of t

A flexible pipe joint apparatus for use in a fluid (e.g., water) transport pipe system for maximally absorbing an external force such as a compression or tensile force applied to a pipe of the fluid transport system due to an earthquake, differential settlement, thermal expansion or contraction of the pipe per se, thus preventing resultant damage at a weak portion of the pipe. The apparatus includes a receiving tubular member and an inserting tubular member insertable into and connectable with the receiving tubular member along a tube axial direction. A stopper portion is formed in an outer peripheral face of the inserting tubular member, the stopper portion projecting radially outward from the outer peripheral face. A retaining portion is formed in an inner peripheral face of the receiving tubular member, the retaining portion coming into contact with the stopper portion of the inserting tubular member so as to prevent slidable displacement between the two tubular members at least on a withdrawal side in a predetermined relative slidable range of the tubular members. The stopper portion includes a plurality of projections formed at a plurality of positions along a periphery of the inserting tubular member. The retaining portion of the receiving tubular member includes a plurality of detaching recesses, each said recess allowing passage of each of the projections axially relative to the detaching recess only when the receiving tubular member and the inserting tubular member are located in a predetermined phase relationship with each other.

대표청구항 ▼

A flexible pipe joint apparatus for use in a fluid (e.g., water) transport pipe system for maximally absorbing an external force such as a compression or tensile force applied to a pipe of the fluid transport system due to an earthquake, differential settlement, thermal expansion or contraction of t

A flexible pipe joint apparatus for use in a fluid (e.g., water) transport pipe system for maximally absorbing an external force such as a compression or tensile force applied to a pipe of the fluid transport system due to an earthquake, differential settlement, thermal expansion or contraction of the pipe per se, thus preventing resultant damage at a weak portion of the pipe. The apparatus includes a receiving tubular member and an inserting tubular member insertable into and connectable with the receiving tubular member along a tube axial direction. A stopper portion is formed in an outer peripheral face of the inserting tubular member, the stopper portion projecting radially outward from the outer peripheral face. A retaining portion is formed in an inner peripheral face of the receiving tubular member, the retaining portion coming into contact with the stopper portion of the inserting tubular member so as to prevent slidable displacement between the two tubular members at least on a withdrawal side in a predetermined relative slidable range of the tubular members. The stopper portion includes a plurality of projections formed at a plurality of positions along a periphery of the inserting tubular member. The retaining portion of the receiving tubular member includes a plurality of detaching recesses, each said recess allowing passage of each of the projections axially relative to the detaching recess only when the receiving tubular member and the inserting tubular member are located in a predetermined phase relationship with each other. lity of corner cleats removably attachable to the hook and loop fastener material at locations thereon to cradle and support corners of electronic equipment, each of the corner cleats including a base having mating hook and loop fastener material on the bottom thereof for hooking with the hook and loop fastener material attached to the upper surface of the base, each corner cleat further including upstanding sections perpendicular to each other, along with resilient material thereon, for mating with and cushioning corners of electronic equipment to be disposed on the carrier. 2. An electronic equipment carrier as in claim 1 including a support strap attached to the base for extending over electronic equipment thereon for securing the same to the base. 3. An electronic equipment carrier as in claim 1 wherein the base includes at least a pair of grooves in an upper surface thereof for mating with and receiving an associated cover for covering electronic equipment to be disposed on the base. 4. An electronic equipment carrier as in claim 3 wherein the base has four grooves for mating with the cover. 5. An electronic equipment carrier as in claim 1 wherein the casters are locking type casters, and the corner cleats comprise four cleats. 6. A carrier for electronic amplifiers of different size comprising a rigid flat base having a thickness and size sufficient for supporting an amplifier, the base having a plurality of casters attached thereto for allowing the base to be easily rolled, a layer of hook and loop fastener material secured to an upper surface of the base thereby forming a flat surface of the material, and a plurality of corner cleats removably attachable to the hook and loop fastener material at locations thereon to cradle and support corners of an amplifier, each of the corner cleats including a base having mating hook and loop fastener material on the bottom thereof for hooking with the hook and loop fastener material attached to the upper surface of the base, each corner cleat further including upstanding sections perpendicular to each other, along with resilient material thereon, for mating with a cushioning corners of an amplifier to be disposed on the carrier. 7. An amplifier carrier as in claim 6 including a support strap attached to the base for extending over an amplifier thereon for securing the same to the base. 8. An electronic equipment carrier as in claim 6 wherein the base includes at least a pair of grooves in an upper surface thereof for mating with and receiving an associated cover for covering an amplifier to be disposed on the base. 9. An electronic equipment carrier as in claim 8 wherein the base has four grooves for mating with the cover. 10. An electronic equipment carrier as in claim 6 wherein the casters are locking type casters, and the corner cleats comprise four cleats. 11. An electronic equipment carrier for transporting amplifiers, keyboards, or other electronic equipment of different sizes comprising a rigid flat base, the base having a thickness and size sufficient for supporting a piece of electronic equipment, the base having a plurality of casters attached thereto for allowing the base to be easily rolled, a layer of hook and loop fastener material secured to an upper surface of the base thereby forming a flat surface of the material, and a plurality of corner cleats removably attachable to the hook and loop fastener material at locations thereon to cradle and support corners of electronic equipment, each of the corner cleats including a base having mating hook and loop fastener material on the bottom thereof for hooking with the hook and loop fastener material attached to the upper surface of the base, each corner cleat further including upstanding sections perpendicular to each other, along with resilient material thereon, for mating with and cushioning corners of electronic equipment to be disposed on the carrier. 12. An electronic equipment carrier as in claim 1