초록 ▼

An assembly of expandable pull rods of an article of luggage including an expandable pull rod frame, an arresting device, and a press member. The expandable pull rod frame is formed of a bottom seat for bracing two bottom tubes into which two intermediate tubes are fitted. Two top tubes are fitted i

An assembly of expandable pull rods of an article of luggage including an expandable pull rod frame, an arresting device, and a press member. The expandable pull rod frame is formed of a bottom seat for bracing two bottom tubes into which two intermediate tubes are fitted. Two top tubes are fitted into the two intermediate tubes and are fastened with a hand grip. The top tubes and the intermediate tubes are located by the main control members of the arresting device, whereas the intermediate tubes and the bottom tubes are located by the auxiliary control members of the arresting device. The press member is disposed in the hand grip for actuating the arresting device.

대표청구항 ▼

[ What is claimed is:] [1.] An assembly of expandable pull rods for a piece of luggage comprising:an expandable pull rod frame comprising:two bottom tubes each of a hollow construction, each of said bottom tubes having a locating sleeve at a top end thereof, said locating sleeve having a protuberanc

[ What is claimed is:] [1.] An assembly of expandable pull rods for a piece of luggage comprising:an expandable pull rod frame comprising:two bottom tubes each of a hollow construction, each of said bottom tubes having a locating sleeve at a top end thereof, said locating sleeve having a protuberance on outer walls thereof, each of said bottom tubes having locating holes;two intermediate tubes each of a hollow construction, each of said intermediate tubes being fitted into respective bottom tubes such that top ends of said intermediate tubes jut out of top ends of respective bottom tubes, said intermediate tubes having locating sleeves at respective top ends thereof, each of said intermediate tubes having a plurality of locating holes in respective top and bottom ends thereof;two top tubes of a hollow construction, each of said top tubes being fitted into respective top ends of said intermediate tubes such that top ends of said top tubes jut out of respective top ends of said intermediate tubes, each of said top tubes having locating holes in a bottom end thereof;a bottom seat having retaining slots at both longitudinal ends thereof such that respective bottom ends of said bottom tubes are retained in said retaining slots;an intermediate seat having through holes at both longitudinal ends thereof such that respective top ends of each of said bottom tubes are received within said through holes and such that respective ends of either of said intermediate tubes and said top tubes are received within said through holes; anda hand grip having retaining slots at both longitudinal ends thereof for aligning respective top ends of said top tubes, said hand grip having two pillars at both longitudinal ends thereof such that said pillars correspond to respective top ends of said top tubes, said hand grip also having a cover fastened therewith and a through hole at a center thereof, wherein a button is positioned within said through hole of said cover;an arresting device comprising:two main control members positioned in respective bottom ends of said top tubes, said main control members comprising:seat blocks having respective longitudinal holes and cross slots, said cross slots being positioned opposite each other, each of said seat blocks having a retaining slot in which a retaining block of said top tube is retained,locating blocks having respective longitudinal through holes in communication with said respective longitudinal holes of said respective seat blocks, said locating blocks having inclined guide blocks in an inner side wall thereof and cross round protrusions in an outer sidewall thereof, said locating blocks being disposed in said respective cross slots of said respective seat blocks such that each of said cross round protrusions of said respective locating blocks are opposite in location to each other;arresting blocks having stop pieces at respective bottom ends thereof, retaining hooks and inclined guide slots, said inclined guide slots corresponding in location to said respective inclined guide blocks of said respective locating blocks, said arresting blocks being disposed in said respective longitudinal through holes of said respective locating blocks such that respective top ends of said arresting blocks jut out of respective top ends of said seat blocks and such that said respective top ends of said arresting blocks are fastened to respective pull cords;horizontal return springs being disposed in said respective cross slots of said respective seat blocks; andlongitudinal return springs having said respective arresting blocks fitting respectively therein; andtwo auxiliary control members positioned in respective bottom ends of said intermediate tubes, said auxiliary control members comprising:lower seat blocks having straight long holes, cross slots, and retaining slots, said lower seat blocks being positioned in said respective bottom ends of said respective intermediate tubes such that retaining pieces are retained in said respective retaining slots;pairs of horizontal return springs being disposed in said respective cross slots of said respective lower seat blocks;upper locating blocks having straight through holes and cross protuberances, said straight through holes being in communication with said respective straight long holes of said respective lower seat blocks, said straight through holes having inner walls with inclined protrusions;lower locating blocks having cross protuberances corresponding to said respective cross protuberances of said respective upper locating blocks;lower arresting blocks having seat pieces, retaining protrusions and inclined guide slots, said lower arresting blocks being disposed in said respective straight through holes of said respective upper locating blocks such that respective bottom ends of said respective lower arresting blocks jut out of respective bottom ends of said respective lower seat blocks, said inclined guide slots corresponding in location to said respective inclined protrusions of said respective upper locating blocks, said seat pieces of said respective lower arresting blocks face bottom edges of said respective seat blocks of said respective main control members; andlongitudinal return springs having said respective lower arresting blocks fitted therein; anda button comprising:a press key having a plurality of inverted hooks on the underside thereof and a position confining pillar, said press key being connected to said cover such that said inverted hooks of said press key catch the periphery of said through hole of said cover; anda control block being formed of a guide block and an elastic piece, said control block having two retaining holes for retaining two spherical ends of two pull cords located in said top tubes, said guide block having a guide hole greater in size than said pillar of said hand grip, said elastic piece having a guide pillar which is fitted into said position confining pillar of said press key, said pillar of said hand grip being received in said guide holes of said two guide blocks.