# US 2009/0260734 A1 · Safety wheel for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2009/0260734 A1 - Document ID: US20090260734A1 - Status: Published application - Kind: A1 - Application number: 12/439,141 - Filed: 2007-07-27 - Published: 2009-10-22 - Earliest claimed: 2006-08-28 - Inventors: Eun-Ho Jo - Web page: https://patentgrep.com/patent/US20090260734A1 ## CPC - B60C 17/06: resilient - B60B 21/04: with substantially radial flanges (with rail-engaging flanges B60B17/00 ){(B60B21/021 takes precedence)} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION ## Abstract A safety wheel for a vehicle includes a rim having a body and a protrusion extending outward from an outer circumference of the body, and having a fastening groove; a first rubber layer wrapped on the protrusion of the rim; an air-filled tube disposed on the first rubber layer, and having a hollow body filled with compressed air therein; an outermost second rubber layer wrapped on the rim protrusion, the first rubber layer and the air-filled tube; and a rubber sheath wrapped on the rim protrusion, the first rubber layer, the air-filled tube and the second rubber layer. The safety wheel maintains pressure to support the weight of the vehicle, and even if the tire is blown out, prevents the vehicle from rocking and overturning due to inclination, as well as affords stability so that the vehicle can travel for a predetermined distance. ## Claims ### Claim 1 A safety wheel for a vehicle, comprising: a rim, having a body and a protrusion extending outward from an outer circumference of the body, the protrusion having a fastening groove; a first rubber layer covered or wrapped on an outer portion of the protrusion of the rim to surround the protrusion; an air-filled tube disposed on an outer central portion of the first rubber layer, the air-filled tube having a hollow body filled with compressed air therein; a second rubber layer covered or wrapped on the protrusion of the rim, the first rubber layer and the air-filled tube; and a rubber sheath covered or wrapped on the protrusion of the rim, the first rubber layer, the air-filled tube and the second rubber layer, thereby forming an outermost layer. ### Claim 2 (depends on 1) The safety wheel for a vehicle according to claim 1, further comprising a gauze member interposed between the second rubber layer and the rubber sheath in order to enhance a pressure-maintaining function. ### Claim 3 (depends on 1) The safety wheel for a vehicle according to claim 1, wherein the second rubber layer and the gauze member comprise a bulletproof material and have a bulletproofing function. ### Claim 4 (depends on 1) The safety wheel for a vehicle according to claim 1, wherein the air-filled tube comprises a rubber tube with a thread or a wire embedded therein, or a metal tube made of a metal material. ### Claim 5 (depends on 1) The safety wheel for a vehicle according to claim 1, further comprising an air pressure sensor mounted on an outer surface of the rubber sheath, thereby enabling a driver to identify air pressure of the tire that contacts the rubber sheath. ### Claim 6 (depends on 2) The safety wheel for a vehicle according to claim 2, wherein the second rubber layer and the gauze member comprise a bulletproof material and have a bulletproofing function. ### Claim 7 A safety wheel for a vehicle, comprising: a rim, having a body and a protrusion extending outward from an outer circumference of the body, the protrusion having a fastening element; a tube disposed on an outer central portion of the protrusion, the tube having a hollow body that is filled with compressed air; and an outer rubber layer covering the protrusion of the rim and the air-filled tube. ### Claim 8 (depends on 7) The safety wheel of claim 7, further comprising an intermediate rubber layer covering an outer portion of the protrusion of the rim to surround the protrusion intermediate the protrusion and the tube. ### Claim 9 (depends on 8) The safety wheel of claim 8, further comprising a rubber sheath covering the protrusion of the rim, the outer rubber layer, the tube and the intermediate rubber layer, thereby forming an outermost layer. ### Claim 10 (depends on 9) The safety wheel of claim 9, further comprising a gauze member interposed between the outer rubber layer and the rubber sheath in order to enhance a pressure-maintaining function. ### Claim 11 (depends on 9) The safety wheel of claim 9, further comprising an air pressure sensor mounted on an outer surface of the rubber sheath, thereby enabling a driver to identify air pressure of the tire that contacts the rubber sheath. ### Claim 12 (depends on 7) The safety wheel of claim 7, wherein the air-filled tube comprises a rubber tube with a thread or a wire embedded therein. ### Claim 13 (depends on 7) The safety wheel of claim 7, further comprising an air inlet coupled to the tube and exposed outside the wheel so that compressed air can be injected in the tube through the air inlet. ### Claim 14 (depends on 9) The safety wheel of claim 9, wherein the tube, the outer rubber layer, intermediate rubber layer and the rubber sheath are detachable from one another.