Webbing winding device

A difference in limiting torques of rotation between a spring and a rotary member is increased without increasing a number of coils of the spring. In a webbing winding device, an outer diameter of a clutch wall of a clutch wheel increases from a flange side to a stopping flange side of the clutch wa...

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Bibliographic Details
Main Author OSAKI TAKAHIRO
Format Patent
LanguageEnglish
Published 23.06.2015
Subjects
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:A difference in limiting torques of rotation between a spring and a rotary member is increased without increasing a number of coils of the spring. In a webbing winding device, an outer diameter of a clutch wall of a clutch wheel increases from a flange side to a stopping flange side of the clutch wall. When a clutch spring is tightly wound on the clutch wall, the clutch spring is subjected to a movement force toward the stopping flange side. Thus, a winding force of the clutch spring onto the clutch wall is effectively increased. Therefore, a difference in limiting torques of rotation between the clutch spring and the clutch wheel between when the clutch spring is not tightly wound on the clutch wall and when it is wound on the clutch wall is increased, without increasing a number of coils of the spring.
Bibliography:Application Number: US201113216454