Патент USA US2129696код для вставки
Sept. 13, 1938. _ . 2,129,696" H. A. KNOX ,TRACK FQR TRACK LAYING VEHICLES ‘Filed Juné 12, 1935 ' Inven’uir Harry A1411 D'X AH urns ' 2,129,696 Patented Sept. 13, 1938 A UNITED STATES. PATENT OFF-lCE 2,129,696 TRACK son TRACK-LAYING VEHICLES , Harry A. Knox, Washington, D. 0. Application June 12, 1935, Serial N0. 26,194 2 Claims. ‘(01. 305-10) 3, 1883, as (Granted under the act of March G. ‘757) amended April 30, 1928; 370 O._ The invention described ‘herein may be manu factured and used by or for the Government for, governmental purposes, without the payment to me of any royalty theeron. This invention relates to a track for track The links B are all identical and_ each one is mounted onadjoining link pins of adjacent shoes. . The link includes a-?ange 9 having turned ends ill-l0 adapted to hook over ‘the link pins. A bolt insertable between’ the link pins has a wedge- 5 ‘ shaped head H receivable in grooves l2 in the laying vehicles. ‘link pins. 1 vThe shank I3 of the bolt passes track of the rubber shoe type in which the track through the ?ange 9 and receives a nut M. This connection holds the link. in place and locks the 10 associated link pins against independent rota The purpose -of the ._ invention is to provide a through rigid elements. facilitate construction of - tension is transmitted A further object is to 10 15 the track shoe by providing a rigid insert for a rubber shoe which includes and correctly spaces tional movement. bearings or sleeves for the link pins. amount of rubber in the bushing 8. The frame D also maintains the shoe against bending and 15 greatly facilitates construction of the shoe in that the hearings or sleeves 5-—5 are held by the webs ' To these. and other ends, the invention consists in the construction, arrangement and combina and tion of elements de scribed ‘ hereinafter pointed out in the claims forming a part of this speci?cation. A practical embodiment of the invention is 20 illustrated in the accompanying drawing, where in: . Fig. 1 is a plan view of a portion of the lower flight of a track constructed in accordance with the invention. Fig. 2 is a view in side elevation. ' By virtue ofthis construction the track tension is taken by the metal parts except ‘for the small v ' in correctly spaced position. ‘In the modi?cation shown in Figs. 5 and 6 the- } frame I5 is provided only with side webs I6. This 20 arrangement is used when the shoes are relatively narrow and are to be used in a double-row track. . The links H are formed to hook over adjoining link pins ill of adjacent shoes and are held in place by the bolt IS in the manner previously‘ de- 25 scribed. The linkv pins l8 are each ?xed-in a rub ber bushing 20. > the Fig. 4 is a view in side elevation of a shoe, I claim: a . link pins in section. ' 1'. A track for track-laying vehicles embodying Fig. 5 is a plan view partly in section of a a series of spaced shoes; each‘ shoe consisting of 30 a rigid rectangular frame of spaced sleeves con-_ 30 double-row track. Fig. 6 is a sectional view of a modi?ed insert nected at their ends by webs, a block of rubber employed in the track of Fig. 5. . vulcanized around the frame; and a rubber bush- ’ ' Referring to Figs. 1 to 4, the track comprises a ing ?xed in each sleeve; 2. link pin passing row of shoes A connected in spaced relation by through and ?xed .in each bushing, and a rigid 35 on link pins 0 extending f detachable link connecting adjoining pins of ad 35 rigid links B mounted transversely through opposite ends of the shoes. jacent shoes, spaced from the shoes and immov- , The shoes A are all identical and each consists able angularly and longitudinally with respect to of a block of rubber or similar material having the pins. a‘ rigid insert or frame D, preferably of metal. . _ 2. A track for track-laying vehicles embodying 40 pair of spaced, parallel 40 The frame comprises a connected at their ends a series of spaced shoes; each shoe consisting of a block of rubber-having a rigid rectangular metal bearings or sleeves 5—5 by side webs 6-6 and optionally connected at frame'insert including spaced sleeves, and a rub-, their intermediate portions by one or more webs ber bushing fixed in each sleeve; a link pin passing 1. The rubber vulcanized to the frame to form through and ?xed in each bushing, and a rigid 45 of the frame except the outer detachable link connecting adjoining pins of ad 45 the shoe, covers all faces of the'side webs 6-6. Each of the. sleeves 5 jacent shoes, spaced from the frame and immov-v carries a rubber bushing 8 whose outer surface is able'with respect to the pins. HARRY A. KNOX. ‘fixed to the sleeve and whose inner surface is ?xed to the link pin C. 25 ‘ Fig. 3 is a plan view of the rigid insert.