Патент USA US2107565код для вставки
Feb. y8, 1938. c. E. FlsETTE 2,107,565 -HYDRAULIC EASTER BRAKE CYLINDER CONTROL Filed Oct. 28. 1936 ’M 4)/‘5 “7" 24 l; L5’ INvENToR im» CHARLES E.F|ss‘r1's ~ Patented Feb. 8, 1938 UNITED vSTATES PATENT oFFlci-z 2,107,565 1 HYDRAULIC MASTER BRAKE CYLINDER CONTROL Charles E. Fisette, Los Angeles, Calif. Application October 28, 1936, Serial No. 108,031 2 Claims. (Cl. 188.142) An object of this invention is to provide a the movement of master plunger Iii and to govern' brakeA cylinder control placed between the rear the necessary stroke of the plunger in the master cylinder I2 for the best adjustment ofA different end of an automobile- and a trailer to so regu late. the brakes on the trailer without- any strain 5 whatsoever upon the brakes of the automobile. Another object' is to provide a device which shall be of simple construction and therefore of weight A friction trailers. washer 9 rests against .the , , adjusting f; > 5' nut 8 and is heldÍ in place by a tension spring lo ' _that is guided by a spring cup II thatiitsfsmigly at the bottom of the bore 1. . inexpensive manufacture, and yet which will internally threaded bore ‘I to provide 'a bearing ' guide forv the master cylinder connecting rod I5 that is provided with an adjustingnut I6 for’A " the connecting pin I1 that contacts'l the end of 15" the master plunger 6 so that whenever‘the master yplunger B is moved forward or backward it >op-- L. , erates the master cylinder I2 to apply or release the brakes not shown ofthe trailer I through ` ‘ the 'I'he accompanying drawing illustrates the in nut I6. ’ The connecting pin I1 is threaded as at Ila .y Figure 1 is a fragmental side elevation of a ¿5 trailer and automobile showing how the inven tion is applied to the trailer frame tongue and shows diagrammatically the method of connect ing the invention to the master brake cylinder which is also shown. Fig. 2 is an enlarged fragmental horizontal sec tion through the trailer tongue showing the in vention partly in section 'with a fragment ofthe master cylinder fixed thereto and methodof fix g5 into the adjusting' nut I6 to compensate for -wear 25 for the life of the device. l ' A shut off valve I9 is provided in the ñuid line I2a at the back of the master cylinder I2 to nullify the brake action on the trailer I if so de 30 sired. i The plunger 6 is provided with a tapered _shoul der 20’ that abuts against the master plunger body 5 as shown in Figs. 2 and 3 of the drawing ing the master plunger body to the trailer tongue. and a reduced portion 2 I > forms a link to connect Fig. 3 is a» view analogous to Fig. 2 showing the master plunger in a retarded position and connection 22 in'Fig. lvof the drawing. omitting fragments of the master cylinder and the plunger to the automobile 2 as shown, at the 35 To permit a smooth sliding ñt at all times of Fig. 4 is a section on the line 4--4 of Figure 3. Fig. 5 is a section on the line 5---_-5 of Figure 3. the plunger B in the master cylinder plunger body 5 a grease tap 23 is provided. Bolts 24 are provided to hold the master plung- 40 The reference numeral I designates the front er body ‘5 fixed to the trailer tongue l. trailer tongue. ¿lo une ‘2a. The spring adjusting nut 8 is provided with a Y, 'I ' bore I8 that formsv a guide for the adjusting ' _ vention.v wf ' by bolts la to the master plungerv body' sand is. _mf provided with a unit M that extends into thelg‘ vention may appear from the accompanying 20 drawing, the subjoined detailed description and the appended claims. ' A master cylinder I2 is shown held in 'positionY ¿ prove thoroughly practical and emcient in use. l0 Another object of the invention is that the device is so constructed and arranged to operate brakes of a trailing vehicle, giving the proper amount of pressure at the required time and will operate as the automobile slows up or stops. 15 This invention may have a variety of applica tions and certain of the features of construction may be embodied in a variety of structures. Other objects, advantages and vfeatures of in „ end of a trailer I and 2-the rear end of an auto I In operation when theiautomobile 2 retards its mobile and only such portion thereof illustrated, speed or stops trailer I advances on master plunger 6 operating connecting pin I'I and cyl as required to locate the device of my inven 45 tion. The >frame t and trailer tongue il of the trailer i are, or may be of any approved construc tion. The master plunger body 5 is so constructed and arranged to iit snugly in the tongue land 5o houses the master plunger 6 which is slidably mounted therein. The master plunger body 5 is provided at one end with an internally threaded bore 1 that per ` .mits the spring adjusting nut 8 to be threaded 55 therein to permit adjustment of the tension Qi inder rod I5 causing the master cylinder I2 to 45 operate. I claim: \ l. A device of the character set forth adapted to -be placed; between a towing vehicle and a trailer comprising a plunger body; a plunger slid- 5o ably mounted in said plunger body adapted to apply brakes on the trailer; an internally threaded bore provided at one end of said plunger body; a spring adjusting >nut mounted in said threaded bore; -a friction washer resting 55 2 VY2,107,565 against said adjusting nut; a spring cunslid ably mounted at the bottom of said internally threaded bore to art as a guide fora tension spring which is interposed between said friction Washer and said spring cup that absorbs any sheçk through vthe plunger; means slidably mounted in said internally threaded bore ¿icon necîting said plunger so that whenfgfsaid plunger is actuated Yit causes the brakes of the trailer to 10 operate. Y f . i 2.Y A device of the charaoter set forth :adapted to ?be plaçed between a towing vehicle and a trailer comprising a plunger body; a plunger _ i ` - slidably mountedîin said/plunger body adapted to applyibrakesoin the trailer; said plunger be ing provided at one end with a tapered shoulder that abuts against said plunger body; ariV inter nally threaded bore provided at one end of said 5 plunger body; a'grease tap in said plunger body that provides means of asmooth sliding ñt at all times of said plunger andïmeans slidably mounted in said internally threaded bore connecting said plunger so that when said plunger is'actuated it 1'0 causes the brakes of the'trailer to operate. f CHARLES E. FISÉTI'E.