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1. 发明专利

JP2002253726A SNOW SURFACE SLIDING TOOL 失效
公开(公告)号：JP2002253726A
公开(公告)日：2002-09-10
申请号：JP2001058427
申请日：2001-03-02
申请人： TANAKA MASAHARU
发明人： TANAKA MASAHARU
IPC分类号： A63C5/00 , A63C5/02 , A63C17/01 , B62B13/00 , B62M27/00
摘要： PROBLEM TO BE SOLVED: To provide a snow surface sliding tool which is simple to handle in the cases of carrying and housing, can be braked without requiring to use special sliding techniques fully and enables a small sharp turn, with respect to the snow surface sliding tool provided with a sliding board, a steering board arranged at its front part and a handle device for turn-operating the steering board. SOLUTION: A frame 4 is fixed to the upper surface of the sliding board 1. A step 5 is supported to be parallel with the board 1 on the upper surface of the frame 4. The handle device 3 and the step 5 are connected to each other through a connecting structure 6 in the state capable of rising and falling so that the device 3 can be folded compactly to its carrying position along the board 1 from its standing position. A brake device 7 is positioned so that the snow surface sliding tool can be braked when the operation tool 60 of the device 7 is stepped. The area of the board 2 is 15 to 35% of the area of the board 1.

2. 发明专利

JP2000085644A RUBBER TRACK FOR SNOWMOBILE 失效
公开(公告)号：JP2000085644A
公开(公告)日：2000-03-28
申请号：JP26165198
申请日：1998-09-16
申请人： YOKOHAMA RUBBER CO LTD
发明人： TANI AKIRA
IPC分类号： B62D55/253 , B62M27/00
摘要： PROBLEM TO BE SOLVED: To avoid such degradation by heat of lateral rigid members in snowmobiles as results from transmission thereto, via rubber cushions, of the frictional heat that is made between slide rails and sliding metal fittings on rubber tracks. SOLUTION: A rubber cushion 19 interposed between sliding metal fittings 13 on a rubber track to enclose a lateral rigid member 12 is constituted of a porous element including gas 20, so that the frictional heat that is made by sliding portions 13a of the sliding metal fittings 13 making a sliding contact with a slide rail 30 is transmitted less to the lateral rigid member 12. The porous rubber cushion 19 is prepared by vulcanizing a mixture in which a blowing agent or micro hollow substance is mixed with unvalcanized rubber material at molding to include a gas 20 therein.

3. 发明专利

JP2000085643A TRACK BELT FOR SNOWMOBILE 失效
公开(公告)号：JP2000085643A
公开(公告)日：2000-03-28
申请号：JP25824398
申请日：1998-09-11
申请人： YOKOHAMA RUBBER CO LTD
发明人： ARAKAWA ATSUSHI
IPC分类号： B62D55/253 , B62M27/00
摘要： PROBLEM TO BE SOLVED: To provide a track belt for snowmobiles that can remarkably improve the high-speed travel performance of snowmobiles via suppression of its own heat generation during high-speed travel and thus prevention of separation of tractive projections from its reinforcing layer. SOLUTION: An outer reinforcing woven fabric 10a includes a tenacity- increasing polyester yarn, and an upper cover layer 11a has tractive projections 13 whose rubber properties are determined to have a loss tangent tanδ at 60 deg.C of not more than 0.2. This constitution suppresses heat generation of a track belt body 3A to prevent separation of the tractive projections 13 from the outer reinforcing woven fabric 10a and improves high-speed travel performance remarkably as well.

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