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US 5,174,221 AGranted
Mount structure for shock-absorber pads of fender
AssigneeBridgestone Corporation
InventorsYasushi Enami, Chuichi Ariyoshi, Dan Nakamura
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AssigneeBridgestone Corporation
InventorsYasushi Enami, Chuichi Ariyoshi, Dan Nakamura
Estimating the term…
A shock-absorber pad mount structure for mounting shock-absorber pads made of elastic material such as polyethylene or the like to a tip end portion of a fender. The shock-absorber pad mount structure comprises a groove having a T-shaped cross-section, which is formed along the rear surface of the shock-absorber pad and consists of a base groove portion extending within the shock-absorber pad in parallel to the rear surface and a communicating groove portion extending from the central portion of the width of the base groove portion at right angles to the base groove portion and reaching the rear surface of the shock-absorber pad, a belt-like member having a width fittable into the base groove portion and fitted into the base groove portion, at least two bolts integrally studded to the central portion of the width of the belt-like member at a predetermined interval and projecting from the rear surface of the shock-absorber pad through the communicating groove portion of the T-shaped cross-section groove, a receiving member provided at the tip end portion of the fender and having bolt holes for allowing the bolts to penetrate therethrough, and nuts threadedly engaged with the tip ends of the bolts and fastened.
A shock-absorber pad mount structure for mounting shock-absorber pads made of an elastic material to a tip end portion of a fender, said mount structure comprising;
A shock-absorber pad mount structure for mounting shock-absorber pads made of elastic material to a tip end portion of a fender, said mount structure comprising;
A shock-absorber pad mount structure for mounting shock-absorber pads made of elastic material to a tip end portion of a fender;
A shock-absorber pad mount structure for mounting shock-absorber ads made of elastic material to a tip end portion of a fender which is an elongated body having a trapedzoidal cross-section;
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards: fenders
Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels: fenders integral with waterborne vessels or…
Adapting or protecting infrastructure or their operation: in transportation, e.g. on roads, waterways or railways
Hydraulic engineering
Term ended 26 Aug 2011 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to a fender having a shock-absorber pad or pads made of elastic material such as polyethylene, nylon rubber, etc. mounted to its tip end portion. More particularly it relates to a mount structure of such shock-absorber pads to a fender.
FIG. 1 shows one example of a hollow cylindrical fender made of rubber in the prior art. Anchor bolts 03 are buried in a quay wall 01 to project from its side surface 02, a base end flange 04 of a fender 00 is fitted to these anchor bolts 03 and it is mounted to the side surface 02 by means of nuts 05. To a tip end flange 06 of the fender 00 is mounted a frame 07 composed of material such as section steel, and to the front surface of this frame 07 is preliminarily welded a steel plate 08. Shock-absorber pads made of synthetic resin having a relatively easily slidable property such as polyethylene, nylon and the like or pads made of soft rubber are brought into contact with the front surface of the steel plate 08. As shown in FIG. 2, bolts 011 are made to penetrate from recesses 010 in the shock-absorber pad 09 through the shock-absorber pad 09 and the steel plate 08 and project from the steel plate 08, and by threadedly engaging nuts 012 with these bolts 011 and fastening them, the shock-absorber pad 09 is fixed to the steel plate 08.
In the above-described fender in the prior art, under the condition where a ship is moored in the proximity of a quay, each time the hull of the ship comes into contact with the shock-absorber pad 09 made of synthetic resin, the front surface of this shock-absorber pad 09 will wear, and if this wearing proceeds and the shock-absorber pad 09 becomes thin, then the hull would come into contact with the head of the bolt 011, and inevitably it would be damaged.
FIG. 1 is a perspective view partly cut away of a fender in the prior art;
FIG. 2 is a cross-section view of an essential part of the same fender;
FIG. 3 is a perspective view partly cut away showing one preferred embodiment of a mount structure for shock-absorber of a fender according to the present invention;
In the following, a description will be made of one preferred embodiment of the present invention illustrated in FIGS. 3 and 4.
A fender 1 made of rubber consists of a fender main body 10 of hollow cylindrical shape having a base end flange 11 and a tip end flange 12 integrally formed at its opposite ends.
In a side surface 3 of a quay wall 2 are buried anchor bolts 4 in a relative arrangement identical to that of bolt holes 13 in the base end flange 11. The fender 1 is mounted to the quay wall 2 by fitting the bolt holes 13 in the base end flange 11 to the tip ends of anchor bolts 4 and threadedly engaging nuts 5 with the tip ends of the anchor bolts 4 to be fastened.