Патент USA US2410570код для вставки
0V~ 5» Í94- L. w. DAvns 943997@ BOAT TRAILER ATTACHMENT Filed Feb. 7, 194s 2 sheets-sheet 1 NOV. 5, 1946. L_ w, DAVIS 2,410,570 BOAT TRAILER ATTACHMENT Filed Feb. '7, 1945 ` ` ' ' 2 Sheets-Sheet 2 I* _ WAV, A nuanfmj LeuìWaHerDams Entente@ Nov. a, in UNITED STATES PATENT 'FFICE 2,410,570 BOAT TRAILER ATTACHMENT Levi Walter Davis, Marne, Mich. Application February 7, 1945, Serial No. 576,666 4 Claims. (ci. 9_1) t l This invention relates to a novel attachment which may be applied to the sides of a boat which may thereupon be converted into a trailer, mak ing transportation of the boat to the place where 2 screws 5 passing through the plate and thread ing into said bosses Il as best shown in Fig. 4. It is of course evident that the plate 5 and any .thlng connected therewith may be quickly and it is to be used very simple and easy, and of easily attached in place or removed whenever course a boat when thus converted into a trailer desired. may be used also for normal trailer purposes. At the outer side of the plate 5 a suitable sup-l It is an object and purpose of the present in porting bracket is secured, made from a length vention to provide such attachment, one of which of flat bar material, with an outer generally ver may be secured at each side of and extend below 10 tical section 'I, upper and lower sections 8 turned the boat, each having a wheel to roll upon the again at right angles toward each other and ly ground, each of said Wheels being supplied with a spring to cushion shock as the converted boat trailer is moved over the road. A further object ing against and secured to the plate 5 by weld ing or other suitable permanent connection. The bar 1 lies substantially parallel to the plate 6 and of the invention is to provide such attachments 15 in the upper and lower sections 8 circular open and connect them detachably one to each side of ings are made for the passage of a post of wheel the boat, so that they may be very quickly and carrying member of the attachment. easily removed when the boat is to serve its nor In the assembly of the parts, against the under mal functions. Other objects and purposes in side of the lower section 8 a block I Il is located cluding novel means for effectively building and 20 of the shape best shown in Fig. 5, which has an constructing the attachment will be understood edge lying against the plate 5'whereby said block and will appear from the following description is held against turning movement. The block is taken in connection with the accompanying provided with two angularly disposed set screws drawings, in which II which reach to a centrally disposed circular Fig. 1 is a side elevation of a boat having the 25 opening so as to engage against the upper end trailer attachment of my invention applied portion of a tubular post I2 which passes up thereto. wardly through the openings in said block I0 and Fig. 2 is an enlarged elevation of said trailer in said upper and lower sections 8 of the previ attachment and a portion of the side of a boat ously described bracket. A collar I3 on the post to which it is attached. 30 comes against the underside of block I 0. The` Fig. 3 is a fragmentary transverse section upper end of the post has openings for the pas through a side of the boat, the trailer attach sage of a retaining pin I4. When thus assembled ment being shown in front elevation. the set screws II are tightened snugly against Fig. 4 is a fragmentary vertical section through the post I2 whereby the post is held against any a side of the boat, showing the construction of 35 turning movement about its longitudinal axis. the attachment and where and how it is secured, 'I'he lower portion of the post I2 extends below and the bottom of the boat and is disposed vertically Fig. 5 is a substantially horizontal section on as shown in Fig. 3, the post being bent between the plane of line 5-5 of Fig. 4 looking in an up its endsfthe necessary amount, dependent upon ward direction. 40 what may be the inclination of the side I of the Like reference characters refer to like parts in boat away from the vertical. At the lower end the different ñgures of the drawings. of thepost I2 a bracket I5 is permanently se The boat may be of any conventional struc cured having a boss, as indicated in dotted lines ture having generally vertical sides I, usually in Fig. 2, extending to the lower end of the tubu somewhat inclined outwardly and with a bottom 45 lar post. On the bracket I5 a lever is mounted 2. It is to the sides I of the boat that the at one end of which is forked, having spaced apart tachments of my invention are to be detachably arms I6 and with a single arm I'I extending op secured. Each side of the boat at the proper positely. The lever is pivotally mounted to turn place in the length thereof is provided with suit about a- horizontal axis upon a‘pivot pin I8 pass able members 3 preferably of a disk form located 50 ing through the bracket I5. A cross bar I9 ex at the inner side of said boat side and each hav tends between the two arms I6 of the fork and ing a central boss 4 extending therethrough, the the bracket I5 has a stop projection I5a at its boss being interiorly bored and threaded. Over rear side so that the lever is stopped in a, rota a plurality of rows of such bosses. an outside - tive movement in a counterclockwise direction-by plate 5 may be detachably secured by means of 55 said bar I9 coming against the projection lia, 2,410,57o . I ~ Y 3 I asshowninthedashed linesatthelowerpartoi Fig. 2. A wheel 2l of a conventional structure preferably provided lwith a pneumatic tire, ß ïï . 4 ofthe bracket being permanentlysecured to said Ybase plateßnd Said ends having alilied Openings therethrough, a post extending - mounted upon a suitable'axleY extending between openingaadetachablepin passingthroughthe ' the outer ends of the two sides il o! the described upper end portion 'of the post-above the upper end o! the bracket, a block having a side bearing ' fork. A relatively heavy coiled tension spring' 2i is connected at one end to the Vi'ree end ot the against the base plate located'belowand against arm I1 and at its oppomte end to an ear Ilex A the lower end of said bracket, lmeans for seeming ' tending laterally from the collar Il. Said spring. the block to said post, said post extending down 'normally tends to move the'lever il-il in a 10 wardly,V a lever pivotally 'mounted between its clockwise direction about the pivot Il. the weight -oi' the boat and its contents with two of the at tachments secured to the boat. one at each side causing the springs 2i ofr both attachments to be ' endstoturnonahorizontalaxis,onsaidpost at its lower end, said lever to'o?e side of said pivot comprising a fork having> spaced 'apart sides, a .wheel disposed between said sides and mounted stretched in accordance with the weight vwhich 15 at the ends thereof to turn -abcutva horizontal is supported thereby. For connection of 'the axis, and a tension spring connected at one end front end of the boat to a motor vehicle which to the opposite end of the lever and at its other. is to pull it over the road, the iront part of the Vend to said post adjacent said block. boat may be supplied with any desired or conven tional type of hitch generally indicated at 2l in Fig. 1. . With this construction theboat'being supplied with the inner disks l having outwardly extend 2. A construction as dciinedin claim l. said post below said block having acallar thereon and an ,ear extending laterally from the collar to which the upper end of the spring is connected. and Vsaid post adjacent its lower end having an ‘ing bosses I, a pluralityY of them at each side of A outwardly extending stop against which said the boat, the attachments one for each side oi'V _the boat may-be connected in .place by use of lever engageson a predetermined pivotal turn the screws l: and of course may be as quickly spring. and easily removed by withdrawing said screws. When secured in place the attachments, one at each side of the boat, support vthe boat in an elevated position above Ythe Vground and provide a wheel support therefor so that it may be readily ing movementV thereof and stretching of the _ 3. VIn a construction as described, a boat having spaced sides, a plurality of plates located at the inner side of each side of the. boat, each having a. central boss passing through the side of the boat,"each of said bosses being interiorly bored pulled over the road.` ’I‘he springs 2| cushion any shocks occurring during such rolling move f and threaded, a plate locatedl against the outer elongation of the springs 2| and insure againstthe wheels coming against the bottom of the Y nected with each plate and extending downwardly side of each side of the boat, screws passing ment. The stops at Ita prevent excessive 35 through said plate into said bosses. a post con .boat as shown in Fig.' 2. therefrom below the boat, a lever pivotally The block at Il! and ' - «mounted between its ends at the lower end oi set screws il associated therewith provide a . novel and ready means for the proper adjustment of the wheels with reference to each other Aand* ~ to the ground over which they are to be drawn. 'I'he construction described is very practical and useful. It`is readily manufactured and is particularly easy to apply or to remove. The disks Y 3 with the central outwardly extending bosses >4 are likewise quickly and readily applied to the ` - sides of a boat, merely boring the necessary open- ' ings for the passage of the bosses l, and driving the post to turn about a horizontal axis, a wheel mounted to turn on a horizontal axis at one end `of said lever, and spring means between` the op posite‘end oi the lever and said post resisting turning movement of the lever in one direction. >4. In a, construction as described, a base plate ' adapted to be secured in a generally vertical posi tion against and to the side of Ya body, a bracket connected to and extending` outwardly from said base plate having spaced apart upper and lower ‘Y portions with alined openings therethrough, a post 'extending at its upperend'portion through the screws by means of which said disks are - _ said openings and below the'plate, a lever pivotaily secured in‘place. Y The invention is deilned ' in' the appended mounted between its ends at the lower end of the post, >a. wheel carried at lone end of the lever to claims and is to be consideredcomprehensive ' turn about a horizontal axis, Vspring means be , of all Yforms of structure coming within their 55 tween the opposite ends or the lever and said post'yieldingly resisting turning movement of the I claim: `lever in _one direction,'and ablock at the lower ~1. In a construction as described, an attach- i' side of _said bracket having a side >engaging ment adapted to be secured, one toV each side of ~_ against the base plate to lock the block against >a boat, said attachment- comprising, a base plate turning movement, said postV passing through adapted to be detachably secured to a side of saidV block, and releasable securing means ' the boat, a bracket made from a length or nat mounted on said block and engaging against the scope. . e _ metal having upper and'lower spaced apart ends and an outer side connecting said ends, said ends post to hold it in iixed relation'to the block. Y ^ ' LEVI WALTER DAVIS.