To provide a carrier and a caster slipping-off prevention structure which prevent slipping-out of a caster shaft from a carriage frame and enhance safety.SOLUTION: A carrier comprises a carriage frame 12 and a caster 13 mounted on the carriage frame, in which the caster includes a caster shaft 33 screwed in the carriage frame, a wheel 31 mounted on the lower end of the caster shaft and a fixing member 34 for fixing the caster shaft screwed in the caster shaft to the carriage frame, and has a slipping-off prevention structure of preventing slipping-off of the caster shaft from the carriage frame. The caster shaft 33 has a first screw part (male screw of outer peripheral surface of a large-diameter part 33a) that is a portion screwed in the carriage frame 12 and a second screw part (male screw of outer peripheral surface of a small-dimeter part 33b) formed with a screw reverse to the first screw part, a slipping-off member 39 having an outer diameter larger than the outer diameter of the first screw part is screwed to the second screw part, and the second screw part and the slipping-off member constitute a slipping-off structure.SELECTED DRAWING: Figure 6
【課題】キャスター軸が台車フレームから外れることを防止し、安全性を高めた搬送車およびキャスターの抜け止め構造を提供する。【解決手段】台車フレーム12と、台車フレームに取り付けられたキャスター13とを備え、キャスターは、台車フレームに螺入するキャスター軸33と、キャスター軸の下端部に取り付けられた車輪31と、キャスター軸に螺着されキャスター軸を台車フレームに固定する固定部材34と、を備え、キャスター軸が台車フレームから抜けることを防止する抜け止め構造を有する。キャスター軸33は、台車フレーム12と螺合する部分である第1ねじ部(大径部33aの外周面の雄ねじ)と、第1ねじ部とは逆向きのねじが形成された第2ねじ部(小径部33bの外周面の雄ねじ)とを有し、第2ねじ部に、第1ねじ部の外径よりも大きい外径を有する抜け止め部材39が螺着され、第2ねじ部および抜け止め部材は抜け止め構造を構成する。【選択図】図6
CARRIER AND CASTER SLIPPING-OFF PREVENTION STRUCTURE
搬送車およびキャスターの抜け止め構造
2021-01-14
Patent
Electronic Resource
Japanese
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge / A61H PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY , Geräte für die physikalische Therapie, z.B. Vorrichtungen zum Lokalisieren oder Anregen spezieller Reflexpunkte am Körper / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |
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