Abstract: Upon receiving XML data input, a database management system calculates a processing cost for reflecting the XML data to an index. If the calculated processing cost exceeds a predetermined threshold, the database management system stores structure analysis information concerning the XML data in a structure analysis information storage area. When an input of a retrieval request of the structured data containing a structure condition of the structured data is accepted and structured data that is an object of the retrieval request is structured data that is not reflected to the index, the database management system takes out structure analysis information stored in the structure analysis information storage area, discriminates a range of XML data that becomes the object of the retrieval request, and conducts retrieval over the range.

Abstract: An automotive seatbelt take-up device has a primary spiral spring biasing a take-up shaft in a seatbelt take-up direction. A spring clutch transfers rotation of the take-up shaft in a seatbelt drawing-out direction to a ring. A secondary spiral spring is capable of generating rotational biasing force on the take-up shaft in a direction opposite that of the primary spiral spring. Thus, the present invention provides an automotive seatbelt take-up device that can reduce both the drawing-out force and the take-up force of a seatbelt when the seatbelt is being worn.

Abstract: An automotive seatbelt take-up device has a primary spiral spring biasing a take-up shaft in a seatbelt take-up direction. A spring clutch transfers rotation of the take-up shaft in a seatbelt drawing-out direction to a ring. A secondary spiral spring is capable of generating rotational biasing force on the take-up shaft in a direction opposite that of the primary spiral spring. Thus, the present invention provides an automotive seatbelt take-up device that can reduce both the drawing-out force and the take-up force of a seatbelt when the seatbelt is being worn.