Rescuing device |
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| 申请号 | US3703218D | 申请日 | 1971-06-28 | 公开(公告)号 | US3703218A | 公开(公告)日 | 1972-11-21 |
| 申请人 | BRDA OTTO; | 发明人 | BRDA OTTO; | ||||
| 摘要 | Rescuing device for rescuing persons from the chairs of inoperative chairlifts or the like in which on a supporting member rollers are provided, against which the cable carrying the chairs is pressed by a braking plate, said braking plate being movable on the supporting member in a direction normal to the extension of the cable. On the braking plate spring means are acting, which can be compressed by an adjustable lever. On the supporting member there is provided a cylinder, supported by a free-wheeling bearing rotatable in one direction of rotation and not rotatable in the other. A rope is wound around the outer periphery of the cylinder and to a first end of the rope a belt is connected such that a person to be rescued and sitting in the belt by its weight generates a frictional braking force between the rope and the outer periphery of the cylinder. A person participating in the rescuing operation can slide down an inclined cable to which the chairs are connected, while sitting on a transporting means connected to the supporting member and control its speed by operating the adjustable lever. | ||||||
| 权利要求 | 1. REscuing device for rescuing persons from ropeways, chairlifts and similar means for transporting persons along cables, ropes or the like over a certain height difference above the ground, comprising a. a supporting member; b. rolling means provided on said supporting member for movement along the rope or cable; c. frictional braking means, provided on said supporting member and movable thereon, which in a first position contact the rope or cable to exert a frictional braking force on the same and in a second position provide a predetermined space between the braking means and the rolling means; d. spring means acting on said frictional braking means; e. an adjustable member to compress said spring means to increase the pressure acting on said frictional braking means, f. cylinder means supported on said supporting member by a free-wheeling bearing means, which allow a rotation of the cylinder means in one direction of rotation and block their rotation in the other direction of rotation; g. rope means, wound around the cylinder means at least one and a half times; h. belt means releaseably connected to the first end of said rope means, whereby this first end acts on said cylinder means in the direction, in which a rotation of the cylinder means is blockeD; i. transporting means connected to said supporting member; such that a first person sitting on the transporting means and operating the adjustable member can slide down an inclined rope or cable into the vicinity of a second person to be rescued and fasten said belt means around said second person, and wherein the second person can controlledly be moved down by gradually releasing the second end of said rope means. 1. REscuing device for rescuing persons from ropeways, chairlifts and similar means for transporting persons along cables, ropes or the like over a certain height difference above the ground, comprising a. a supporting member; b. rolling means provided on said supporting member for movement along the rope or cable; c. frictional braking means, provided on said supporting member and movable thereon, which in a first position contact the rope or cable to exert a frictional braking force on the same and in a second position provide a predetermined space between the braking means and the rolling means; d. spring means acting on said frictional braking means; e. an adjustable member to compress said spring means to increase the pressure acting on said frictional braking means, f. cylinder means supported on said supporting member by a freewheeling bearing means, which allow a rotation of the cylinder means in one direction of rotation and block their rotation in the other direction of rotation; g. rope means, wound around the cylinder means at least one and a half times; h. belt means releaseably connected to the first end of said rope means, whereby this first end acts on said cylinder means in the direction, in which a rotation of the cylinder means is blockeD; i. transporting means connected to said supporting member; such that a first person sitting on the transporting means and operating the adjustable member can slide down an inclined rope or cable into the vicinity of a second person to be rescued and fasten said belt means around said second person, and wherein the second person can controlledly be moved down by gradually releasing the second end of said rope means. 2. Rescuing device in accordance to claim 1, further comprising guiding means attached to the supporting member for guiding the ends of said rope means at a predetermined position to and away from said cylinder means. 3. Rescuing device in accordance to claim 2, further comprising second guiding means attached to the supporting member for preventing a movement of the rope means in the direction of the axis of the cylinder means; 4. Rescuing device as claimed in claim 1 wherein said cylinder means are made from heat-conductive material, and wherein said rope means are made from a material essentially not loosing its strength at the temperature generated when said rope means are frictionally moving around the surface of the cylinder means in the direction of the rotation, in which the cylinder means can not be rotated. 5. REscuing device as claimed in claim 4, wherein the cylinder means is made of an aluminum alloy and wherein the rope means is a polyamid material. 6. Rescuing device in accordance to claim 1 wherein further there are provided locking means for closing the space between the supporting member, the rolling means, and the frictional braking means, to completely surround the rope means. 7. Rescuing device as claimed in claim 1 wherein the adjustable member is provided with cam means to act on said spring means and further is provided with notches releasably engaged with grooves provided on the supporting member. 8. Rescuing device in accordance to claim 1 wherein the transporting means comprise essentially vertically extending first bar means connected to said supporting member and further essentially horizontally extending bar means connected to said first bar means. 9. Rescuing device in accordance to claim 6, wherein the upper end of the supporting member is essentially U-shaped and the rolling means are arranged between the downward extending legs of said U-shaped upper end of the supporting member, and wherein a first leg of the supporting member further is provided with means for guiding the movement of the frictional braking means and wherein further the transporting means are connected to said first leg of the supporting member and the second leg of the supporting member at its end is connected to a locking means, which can be locked to form an enclosed space surrounded by the first leg of the supporting member, the rolling means, the frictional braking means, and the locking means and wherein the cylinder means are connected to the first leg of the supporting member. 10. Rescuing device in accordance to claim 1 wherein said belt means comprise a. a first member with fastening means connected its two ends; b. two further members, the first ends of which are slideably connected to the first member and the second ends of which are also provided with fastening means. |
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