DE2153241A1 - Climbing device for masts, poles and the like - Google Patents

Description

DR-ING. BY KREISLER DR.-ING. SCHÖNWALD DR.-ING. TH. MEYER DR. FUES DIPL.-CHEM. ALEK VON KREISLER DIPL.-CHEM. CAROLA KELLER DR.-ING. KLOPSCH

DIPL.-ING. SELTING COLOGNE 1, DEICHMANNHAUS

25.IO.I97I Sch-DB / ls

William J. Price

3825 East Lake Way, Redwood City, California (USA)

Robert A. Gates

4018 Bennett Bailey Rd., Santa Rosa, California (USA)

Richard W. Cooper

1000 Ignatio Blvd., Apt. 51, Nevito, California (USA)

Climbing device for masts, poles and the like.

The invention relates to a climbing device for masts, poles and the like that can be fastened to the feet, in particular for climbing sailboat masts, flagpoles and the like.

Devices that can be fastened to a person's feet for climbing or climbing masts already exist as long as the masts themselves. Most of these devices, however, are inadequate. the general criticism of many climbing devices is directed against their costs. Those devices that able to take the economic obstacle, are often completely useless for climbing sailboat masts. This is due to the fact that they climb over the on the climbing path of the sailboat mast Do not allow existing numerous obstacles. As most masts are tapered, is often the height that someone comfortably and without risk of

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unintentional slipping can climb, limited. Other known mast climbing devices add the mast and the boat deck was damaged so costly that it was unanimously rejected by the sailboat owners bump.

Another downside of many well-known climbing devices is that they can be used with Masts of special size and / or shape are restricted.

Other climbing devices are bulky, difficult to attach to your feet, and are quick to wear and tear exposed by the weather conditions and the destructive effects of the sea. Finally leave Much to be desired for most known climbing devices from the standpoint of performance and safety left over.

The invention is based on the object of creating a climbing device which overcomes the disadvantages mentioned.

The climbing device is intended for climbing sailboat masts as well as poles or stakes of various kinds be suitable. It should be able to be used for masts or piles that with regard to their sizes and shapes match, e.g. round, square, rectangular, polygonal or the like. and it should come free with the movements of the legs of the person climbing or descending or clamp. The climbing device is especially designed for climbing tapered masts and has surfaces that interlock with the mast and have enlarged gripping characteristics. Through the inven-

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proper climbing device is intended to move up and down along the mast in much the same way that someone would go up a flight of stairs forward. or goes down backwards. The structure of the climbing device should be a failure as well as a natural one Wear of moving parts can be excluded.

With the climbing device according to the invention, the user is able to remove one foot from the mast, to cross an obstacle while the other foot reached the full weight of the climber in the Height with equal effectiveness and reliability. The mast is not damaged by the climbing device, i.e. not scratched, jagged or otherwise changed on the surface. at If the device is accidentally dropped, it will not damage a finished surface or itself and it is also insensitive to weather conditions and seawater exposure.

Furthermore, a climbing device is to be created by the invention, which is relatively simple due to its structure light weight, inexpensive manufacturability, easy attachment to the feet and effectiveness and reliability in use.

The invention solves advantageously the above-mentioned objects by a climbing apparatus having as an integral component a shaped U-substantially rigid gripper strap, consisting of an outer gripping ^one leg, an inner gripping leg and a they are substantially mutually parallel legs in a common Horizontal connecting cross member, where-

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with the surfaces of the interlocking with the mast or the pole Bracket parts are essentially rounded and a rigid base plate with a hook holder and an outer side foot support is provided. The inner gripping leg is substantially along it entire length with the inner edge of the footplate integrally connected. There are fasteners on the base plate for foot brackets. The footplate closes with the common plane of the U-shaped gripping bracket an angle of -about 5 to 30 °, preferably 10 to 20 ° a. At least the gripping surfaces of the bracket are covered with non-metallic elastic material, e.g. Plastic, coated.

The climbing device can be made of any suitable rigid material that is strong enough to withstand the forces occurring during the climbing process. Stable metals, especially light metals, e.g. aluminum, however, are preferred. The device is advantageously cast in one piece from metal, so that moving parts are omitted, whereby the possibility of failure of a device part due to Signs of wear and tear on such parts are excluded.

An essential feature of the invention is that the interlocking with the mast or the rod Surfaces of the U-shaped bracket are substantially rounded. It turned out surprisingly that the substantially rounded gripping surfaces of the U-shaped bracket together with their coating made of relatively soft, elastic material, the necessary Have good grip without the mast being scratched, furrowed, grooved, roughened or in any way otherwise damaged. Another valuable one

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The result of the rounded surfaces of the bracket parts is that the bracket can be easily detached from the mast during the Climbing process. It is only necessary that the climber follow the grandson to release the stirrup inside rolls.

The bracket parts representing the U-shaped gripping bracket can have any shape as long as their Gripping surfaces are essentially rounded. she can therefore have the more general circular shape and often in the plane in which the bracket parts lie, be extended. Through this shape, while maintaining the with the rounded gripping surfaces in connection standing advantages often at the same time an additional reinforcement of the bracket and an increased Clamping force against the mast reached.

Another essential feature of the invention consists in the angling of the plane of the footplate to the plane of the U-shaped bracket. This angle should fall in the range of about 5 to 30 ° > preferably 10 to 20 °. It has been found that when climbing tapered masts or poles with an angle of less than 5 °, the climber can reach a point at which his grandson is angled in an extremely uncomfortable manner. On the other hand, at an angle of more than 50 °, any slight movement of the foot could unintentionally loosen the clamping of the device. The angle within this range that yields the best results varies primarily depending on the diameter and extent of the tapering of the mast or rod and the length of the rear cross member of the U-bracket.

The foot plate is preferably integrally connected to the inner gripping leg of the U-bracket so that

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part of the inner gripping leg essentially protrudes over the entire length of the footplate. With this arrangement, the inner gripping leg is used both as an inner footrest and as a protective shield for the inside of the foot during the climbing process.

The fastening elements for the foot brackets provided on the base plate can be designed in any way e.g. as eyelet parts that are integrally connected to the inner gripping arm and the outer footrest and are set up to accommodate and secure foot brackets, e.g. foot straps. The expert numerous equivalent foot brackets are common. Other appropriate fastening elements can also be used can be used to connect the foot and footplate.

The coating of at least the gripping surfaces Gripping parts of the climbing device with elastic material not only protect the device. against the effects of the weather and the mast or pole against damage during the climbing process, but increases together with the substantially rounded Surface of the gripping bracket cooperating with the mast, the frictional or clamping forces between the Gripping parts and the mast. In a preferred embodiment, the entire climbing device is with the elastic material coated, whereby the wearer of the device a substantially non-slip footplate receives. Accidental slipping of a climbing device coated in this way onto the boat deck does not damage a polished one Area,

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The climbing equipment can be coated with non-metallic, relatively soft, natural or synthetic Material can be used, the elasticity of which is sufficient to represent a coating with increased gripping or friction characteristics. Such materials include natural or synthetic, organic, film-forming, thermoplastic or thermosetting polymer resins, which harden to form a flexible, water-insoluble film. Plastics are suitable, e.g. vinyl plastics Polyolefins such as polyethylene and polypropylene; Polyurethanes and polyacrylics; natural elastomers, e.g. Natural rubber and synthetic elastomers, e.g. neoprene, butyl, isoprene, nitrile, urethane, pluacarbon and acrylic rubber. Preferably, the selected coating material should tend to become with it after application to connect the substrate surface. The coating itself can be used by anyone in the field of plastic coating known procedures are carried out. It is particularly practical that the uncoated climbing device is simple immerse in the molten coating material and then harden it on the device permit. However, after the immersion process, the coated device can be dried at elevated temperatures, about the hardening process and the connection of the coating material to facilitate with the substrate surface. The thickness of the coating can vary; it often depends on the chosen coating process and the coating technique. Layer thicknesses in the range of, for example, about 1.59 mm to 19 * 05 mm or more have been found to be satisfactory.

The invention is explained in more detail using an example shown in the drawing. Show it:

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Fig. 1 is a plan view of a climbing device or crampon for the left foot,

FIG. 2 is an end view of the climbing device according to FIG. 1, which engages with a mast.

FIG. 3 is a front view of the climbing device according to FIG. 1,

FIG. 4 is a diagrammatic rear view of the climbing device according to FIG. 1, the footplate for releasing the U-shaped Gripping part is inclined upward from the mast.

Two climbing devices are required, one for the left foot and the other for the right foot is. The drawing shows only the climbing device for the left foot, which the climbing device for the right foot, in which the U-shaped gripping part is attached to the inside of the right foot, mirror image is equivalent to.

According to the drawings, the U-shaped gripping bracket 1 consists of three bracket parts, namely the inner leg 3 * the outer leg 4 and the Cross member 5 The inner leg 3 and the outer leg 4 are essentially parallel to each other, while the cross member 5 connects them to form the U-shape at one end. Own parts 3, 4 and 5 generally rounded gripping surfaces 3 '* 4' or 5 '· The inner leg 3 is essentially over its entire length connected to the inner edge of a footplate. As is apparent from Fig. 2 to 4, the Foot plate 7 attached to the inner leg 3 so that over the entire length of the inner leg 3 a Part 3a remains free, which protrudes over the footplate and serves at least partially as an inner footrest,

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and also protects the inside of the foot during the climbing process. In addition, the U-shaped bracket 1 is slightly angled towards the base plate 7. In the device shown, the plane of the U-shaped bracket 1 encloses an angle of approximately 17 ° with the plane of the base plate j; however, as already mentioned, this angle can vary from about 5 to 30.

The foot plate 7 has a hook holder 9 and a side support 10. With the side support 10 are two spaced apart, upwardly directed fastening elements 11, 12 connected, in which eyelets 15 and 16 are formed. Opposite the fastening elements 11, 12 are corresponding Fastening elements 17, 18 of identical design, which are attached to the inner leg 3 are and have eyelets 21 and 22 respectively.

The crampon described is made of aluminum and is cast in one piece. A coating 20 from Vinyl plastic is applied by turning the uncoated device into melted vinyl plastic immersed and dried at a temperature of approx. 149 ° C for about 23 minutes to form the plastic 20 with the aluminum substrate surface shown in Flg. 1 is shown as a broken away part 30 to connect. Then the eyes are 15 * 16, 21 and 22 as Holes or slots are drilled in the upwardly directed fastening projections 11, 12, 17 and 18. Straps 23, 24, 25 and 26 are fastened to each fastening element 11, 12, 17 and 18, respectively, by having one end each strap pulled through the eyelet in the fastening elements and on this by sewing, riveting and the like. Are attached. The foot straps 23 and 23 each have reliable slip-free buckles

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Strand 27 or 28.

The length of the temple parts 3 * 4 and 5 depends primarily on the diameter of the mast or post to be climbed. The inner leg 3 and the outer leg 4 preferably have a length that protrudes slightly beyond the mast diameter and the cross member 5 should so be long that it allows easy attachment of the U-shaped bracket to the base of the post or mast. In general, the length of the cross member 5 ranges from about 6.35 cm to 40.6 cm. the Angle! Change of about 5 to 30 ° and the change in length of the cross member from about 6.35 cm to 40.6 cm enables the use of the crampons according to the invention with actually all mast or pole sizes from a diameter between about 2.54 cm to 39 * 4 cm.

When using the climbing device, the climber attaches the device to his feet and sticks one of the U-shaped ones Grab handle 1 on the mast and loads the footplate with its weight. When the climber loads the footplate, the gripping surfaces 3 ', 4' and 5 'are against pushed the pole and bear the weight of the climber. The climber can then use one at a time Foot alternately let go of the mast or grasp it by clamping and can climb up and down the mast by one foot is pulled after the other or by alternately sliding one foot and then the other be moved. Simply roll your grandchild in or lift your foot to release it.

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Claims (9)

Expectations [1.j mast or pole climbing device with a mast —Dzw. the bar partially encompassing bracket part, characterized in that a substantially U-shaped metal gripping bracket (1) is provided, the mutually parallel inner and outer legs (4) are connected by a rear cross member (5) in such a way that they are in one common plane so that the surfaces C5'i 4 ', 5') of the U-shaped bracket (1) engaging with the mast or the rod are designed essentially rounded, so that a rigid metal base plate (7) with a hook holder (9) and an outer side support (10) for the foot with its inner edge substantially over the entire length of the inner gripping limb (3) is integrally connected to the latter in such a way that the foot plate (7) is one with the plane of the U-shaped bracket (1) Angle between about 5 to 30 ° includes that fastening elements (11, 12; 17, 18) for foot holders (23, 24, 25, 26) are provided on the foot plate (7), and that at least the gripping surfaces (3 ¹ , 4 ', 5') of the bracket parts (1 ) are coated with non-metallic elastic material. 2. Climbing device according to claim 1, characterized in that the entire edge of the The footplate (7) is connected to the inner gripping leg (3) in such a way that part of the inner gripping leg (3) protrudes substantially over its entire length over the footplate (7) in order to provide a protective to form inner footrest. - 12 209837/0100 3. Climbing device according to claim 1 or 2, characterized in that the integrating Angle is about 10 to 20 °. 4. Climbing device according to claims 1 to 3> characterized in that the uncoated one-piece structural unit made of aluminum. 5. Climbing device according to claim 3> thereby ge * indicates that the fastening elements have a first pair with a mutual spacing the inner gripping leg (3) arranged holder (11, 12) and one of the first pair substantially opposite second pair of holders (17 * 18) have on the side support, and that the first and second holder with foot brackets (23 to 26) connectable are. 6. Climbing device according to claim 5 *, characterized in that that each fastening element has an eyelet (15 or 16) for fastening serve for the foot brackets on the footplate. 7. Climbing device according to claims 1 to 6, characterized in that im essentially the whole device is provided with the elastic coating. 8. Climbing device according to claims 1 to 7 *, characterized in that the elastic coating is made of synthetic organic plastic. 9. Climbing device according to claim 8, characterized in that that the synthetic plastic is vinyl plastic. 209837/0100 Blank page