# US 9,038,648 B1 · Tent having retractable roof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,038,648 B1 - Document ID: US9038648B1 - Status: Granted - Kind: B1 - Application number: 14/185,057 - Filed: 2014-02-20 - Granted: 2015-05-26 - Earliest claimed: 2014-02-20 - Assignees: Yotrio Group Co., Ltd. - Applicants: Jianping Xie - Inventors: Jianping Xie - Web page: https://patentgrep.com/patent/US9038648B1 ## CPC - E04H 15/60: Poles - E04H 15/58: Closures; Awnings; Sunshades - E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D) ## Abstract The present invention provides a tent having a retractable roof. A plurality of poles extend substantially perpendicular to the ground. A roof frame is fastened to the plurality of poles and a tarpaulin is attached on the roof frame. At least one of the plurality of poles is divided into an upper pole and a lower pole, and a connection mechanism detachably connects the upper pole and the lower pole. ## Claims ### Claim 1 A tent having a retractable roof, comprising: a plurality of poles extending substantially perpendicular to the ground; a roof frame fastened to the plurality of poles; a tarpaulin attached on the roof frame; wherein at least one of the plurality of poles comprising an upper pole and a lower pole; a connection mechanism detachably connecting the upper pole and the lower pole, wherein the connection mechanism comprises a connection plate, a plurality of bolts and a plurality of second through holes disposed on a lower end of the upper pole, wherein a lower end of the connection plate is received in and fastened to an upper end of the lower pole, an upper end of the connection plate is received in the lower end of the upper pole, the connection plate has a plurality of first through holes, the plurality of bolts are inserted into the second through holes and the corresponding first through holes respectively so that the connection plate and the upper pole are fixedly connected, wherein said upper pole and the lower pole are formed in a shape of a hollow rectangular tube, and the connection plate formed in a shape of a beam channel; and a sleeve disposed on the lower end of the upper pole, wherein the sleeve is formed in a shape of a tube adapted to slide along the upper pole. ### Claim 2 (depends on 1) The tent of claim 1, wherein the connection plate has a wall with a thickness being greater than a thickness of walls of the upper pole and a thickness of walls of the lower pole. ### Claim 3 (depends on 1) The tent of claim 1, wherein an inner diameter of an upper part of the sleeve is substantially the same as an outer diameter of the upper pole, and an inner diameter of a lower end of the sleeve is greater than an outer diameter of the upper pole. ### Claim 4 (depends on 3) The tent of claim 3, wherein the tent further comprises a collar fixedly disposed on the upper end of the lower pole, wherein the sleeve comprises a concave portion recessed inward at a lower end of an inner wall of the sleeve, the collar comprises a convex portion adapted to engage with the concave portion of the sleeve on an outer wall of the collar. ### Claim 5 (depends on 4) The tent of claim 4, wherein the collar further comprises a retainer ring on an inner wall of the collar, the retainer ring is protruded toward the center axis of the collar, a bottom surface of the retainer ring abuts a top surface of the lower pole, and a top surface of the retainer ring contacts and supports a bottom surface of the upper pole. ### Claim 6 (depends on 5) The tent of claim 5, wherein both of the sleeve and the collar are made of rubber or plastic material. ### Claim 7 (depends on 1) The tent of claim 1, wherein the lower end of the connection plate is fastened to the upper end of the lower pole through welding. ### Claim 8 (depends on 1) The tent of claim 1, wherein the connection plate is made of metal. ### Claim 9 (depends on 1) The tent of claim 1, wherein the connection mechanism comprises a plurality of first connection holes disposed on a lower end of the upper pole, a plurality of second connection holes disposed on an upper end of the lower pole and a plurality of bolts which are inserted into the first connection holes and the corresponding second connection holes respectively so that the upper pole and the lower pole are fixedly connected. ### Claim 10 (depends on 1) The tent of claim 1, wherein the roof frame comprises a front supporting rod, a rear supporting rod and a plurality of guiding rods, the number of the plurality of poles is four and each of the plurality of poles comprises an upper pole and a lower pole, wherein the front supporting rod and the rear supporting rod are disposed to be extended along a first direction which is substantially parallel to the ground, both ends of the front supporting rod and both ends of the rear supporting rod are fixed to upper ends of the upper poles respectively, the plurality of guiding rods are disposed to be extended along a second direction which is substantially parallel to the ground and perpendicular to the first direction. ### Claim 11 (depends on 10) The tent of claim 10, wherein the number of the plurality of guiding rods is three, wherein both ends of the outmost two guiding rods are fastened to the upper ends of the upper poles respectively, and both ends of the middle guiding rod is fastened to the front supporting rod and the rear supporting rod respectively. ### Claim 12 (depends on 11) The tent of claim 11, wherein the middle guiding rod has the same interval to each of the outmost two guiding rods. ### Claim 13 (depends on 11) The tent of claim 11, wherein the roof frame further comprises a plurality of reinforcement rods extended along the second direction. ### Claim 14 (depends on 13) The tent of claim 13, wherein the number of the plurality of reinforcement rods is two, each of the two reinforcement rods is disposed between adjacent guiding rods, with a same interval to the adjacent guiding rods. ### Claim 15 (depends on 11) The tent of claim 11, wherein the roof frame further comprises a plurality of sliding rods on which the tarpaulin is attached, wherein the plurality of sliding rods are disposed to be extended along the first direction. ### Claim 16 (depends on 15) The tent of claim 15, wherein the tent further comprises a plurality of sliding blocks disposed on the plurality of sliding rods, wherein the guiding rods have a plurality of sliding grooves extended in the second direction, wherein the plurality of sliding blocks are slidably received in the plurality of sliding grooves. ### Claim 17 (depends on 1) The tent of claim 1, wherein the tent further comprises a plurality of feet attached on lower ends of the plurality of poles.