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91. 发明专利

JPH01154988A ELECTRIC TYPE HOUSING LADDER 失效
公开(公告)号：JPH01154988A
公开(公告)日：1989-06-16
申请号：JP31481887
申请日：1987-12-11
申请人： MAEDA IND
发明人： ASAJI MINORU
IPC分类号： E04F11/04 , E06C9/06 , E06C9/08 , E06C9/12
摘要： PURPOSE: To provide a storable ladder capable of easy operating and improving the flexibility by forming an expandable ladder by longitudinally connecting a plurality of ladders, and rotating, expanding and contracting the same by a rope fed out from a rotary drum mounted on an upper end part. CONSTITUTION: A plurality of ladders 11, 12, 13 are longitudinally slidably connected to form an expandable ladder 10 rotatable on a spindle 18, and stored in a storage frame 1. Then a rope 7 fed out from a rotary drum 3 driven by a brake motor 2, is fixed to a lower end of the lowermost ladder 13 through a movable pulley 8 pivotted on an intermediate of the uppermost ladder 11, and a fixed pulley 9 mounted on the storage frame 1. The expandable ladder 10 is rotated, and expanded and contracted by the operation of the rope 7. On this occasion, the positions of pulleys 8, 9 are determined so that the tensile force for totally rotating the ladder is larger than the tensile force for pulling up the intermediate and lower ladders 12, 13 for properly setting the order of the rotation, and the expansion and contraction of the ladder.

92. 发明专利

JPH01132490A HUB FOR BICYCLE 失效
公开(公告)号：JPH01132490A
公开(公告)日：1989-05-24
申请号：JP29157987
申请日：1987-11-17
申请人： MAEDA IND
发明人： WAUKE TSUKASA , NOUAMI HIROYUKI
IPC分类号： B62M9/00 , B60B27/02 , F16D41/30
摘要： PURPOSE: To select propelling or inertial running in the forward/backward running of a bicycle and perform forward/backward running by selectively making inoperative a plurality of ratchet mechanisms by a switching mechanism. CONSTITUTION: A hub shaft 2 provided between left and right fork ends 1a and 1b includes a driving body 6 supported on the outer periphery of a right ball push 4 to be rotated via a steel ball 5, and hub bodies 7 supported on the outer peripheries of a left ball push 3 and the driving body 6 so as to be rotated via steel balls 8 and 9. A ratchet support 12 is arranged in the hub body 7, and a plurality of ratchet catches 15 and 16 are supported in two positions in the outer periphery of a cylindrical body part 12a thereof so as to be swung. Also, a plurality of ratchet mechanisms A and B are composed of ratchet pawls 15 and 16 and a ratchet tooth row 10. Further, a switching mechanism C is provided for selectively making inoperative each of the ratchet pawls 15 and 16 by changing the position of the ratchet support 12.

93. 发明专利

JPS6485892A HUB FOR BICYCLE 失效
公开(公告)号：JPS6485892A
公开(公告)日：1989-03-30
申请号：JP22474887
申请日：1987-09-07
申请人： MAEDA IND
发明人： WAUKE TSUKASA , NOUAMI HIROYUKI
IPC分类号： F16D41/30 , B62M9/10 , F16D41/26
摘要： PURPOSE: To select conditions for moving a bicycle forward or backward only by providing a ratchet tooth line to be engaged with both first and second ratchet claws, and providing a changing mechanism to selectively set both ratchet claws in a non-actuation condition. CONSTITUTION: As first ratchet claws 13 are set in a non-actuation condition by a changing mechanism C, second ratchet claws 14 only are engaged with a ratchet tooth line 12, and a second ratchet mechanism only functions. In this case, inverse rotation force of a drive body 6 only is transmitted to a hub body, so a bicycle can be moved backward. In the meanwhile, as the second ratchet claws 14 are set in a non-actuation condition, the first ratchet claws 13 only are engaged with the ratchet tooth line 12, and a first ratchet mechanism only functions. Normal rotation force only of the drive body 6 is then transmitted to the hub body 7, so the bicycle can be moved forward.

94. 发明专利

JPS6412989A REAR DERAILER FOR BICYCLE 失效
公开(公告)号：JPS6412989A
公开(公告)日：1989-01-17
申请号：JP16759987
申请日：1987-07-03
申请人： MAEDA IND
发明人： OZAKI NOBUO , YOSHIDA MINORU
IPC分类号： B62M9/126
摘要： PURPOSE: To keep an adjustment amount between an upper pulley and the peripheral edge of a free wheel constant by attaching a chain guide to a rocking body so as to be capable of turning around the support shaft in the direction of a hub shaft between the axes of the tow pulleys and reversing the position of the upper and lower by turning. CONSTITUTION: A chain guide 17 is attached to the rocking body 14 of a shift link mechanism 12 so as to be able to turn around a support shaft 22 which is parallel with a hub shaft 18. Two upper and lower pulleys 20 and 21 are rotatably attached to the chain guide 17, and the upper one is a guide pulley 20 and lower one is a tension pulley 21. The distances from the tow pulleys 20 and 21 to the rotation center shaft 22 are made different from each other. Therefore, when the chain guide 17 is rotated at an angle of 180 degrees, the distance L between the guide pulley 20 and the peripheral edge of the sprocket 1 of a free wheel is changed. Therefore, even if the diameter of a multi-stage wheel 1 is changed, the distance L can be changed so that the distance between the guide pulley 20 and the peripheral edge of a free wheel can be kept constant, as a result, an adjustment amount become constant. At a rotation position, it is fixed to the rocking body 14 by a screw 23.

95. 发明专利

JPS63269795A VARIABLE SPEED OPERATING LEVER DEVICE FOR BICYCLE 失效
公开(公告)号：JPS63269795A
公开(公告)日：1988-11-08
申请号：JP10283287
申请日：1987-04-24
申请人： MAEDA IND
发明人： TAGAWA KOICHI
IPC分类号： B62M25/04

96. 发明专利

JPS6311494A DERAILER FOR BICYCLE 失效
公开(公告)号：JPS6311494A
公开(公告)日：1988-01-18
申请号：JP15480786
申请日：1986-06-30
申请人： MAEDA IND
发明人： OZAKI NOBUO , WAUKE TSUKASA
IPC分类号： B62M9/1242 , B62M9/127

97. 发明专利

JPS6258957B2 失效
公开(公告)号：JPS6258957B2
公开(公告)日：1987-12-08
申请号：JP19324883
申请日：1983-10-14
申请人： MAEDA IND
发明人： OZAKI NOBUO
IPC分类号： B62K21/12 , F16B2/06 , F16B7/04

98. 发明专利

JPS62247989A ARRANGING STRUCTURE OF BRAKE CABLE IN HANDLE SECTION 失效
公开(公告)号：JPS62247989A
公开(公告)日：1987-10-29
申请号：JP9103586
申请日：1986-04-18
申请人： MAEDA IND
发明人： OZAKI NOBUO , MIURA KAZUYUKI
IPC分类号： B62L3/02

99. 发明专利

JPS6241913B2 失效
公开(公告)号：JPS6241913B2
公开(公告)日：1987-09-04
申请号：JP7070983
申请日：1983-04-20
申请人： MAEDA IND
发明人： OZAKI NOBUO
IPC分类号： B62M9/1242

100. 发明专利

JPS6280186A CALIPER BRAKE FOR BICYCLE 失效
公开(公告)号：JPS6280186A
公开(公告)日：1987-04-13
申请号：JP21968485
申请日：1985-10-01
申请人： MAEDA IND
发明人： YAMAZAKI KAZUTO
IPC分类号： B62L1/12

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