Патент USA US2128980код для вставки
Sept' 6, 1938, ‘ , A. ANDERTON ' 2,128,980 AUTOMATIC CENTRIFUGAL CLUTCH 0R BRAKE Filed Aug. 5, 1937 2 Sheets-Sheet l Sept. 6, 19380 2911 2&98@ A. ANDERTON AUTOMATIC CENTRIFUGAL CLUTdH OR BRAKE Filed Aug. 3, 1,937 2 ‘Sheets-Sheet 2 Patented Sept. 6, 1938 2,128,98t UNHTED STATES PATENT OFEECE 2,128,980 AUTOMATIC CENTRIFUGAL CLUTCH O-R BRAK E Alfred Anderton, Castleton, near Manchester, England ' Application August 3, 1937, Serial No. 157,079% In Great Britain September 18, 1936 This invention relates to friction‘ clutches or (Cl. 192-105) pockets into which the driving shoes are placed brakes of the automatic centrifugal type, in which thus ensuring that same revolve with the boss a, 2 Claims. a driving boss carries shoes, which contact under . lugs or ears i are also provided on boss 0, which centrifugal action with a driven member, and has for its principal object the provision of an im proved clutch of this type. A further object of the invention is to provide means for holding the shoes out of engagement below a predetermined speed. In the ‘accompanying drawings— Figure 1 is a front View of one form of the im~ proved clutch half of which is shown with the front ?ange removed; Fig. 2 shows the clutch in section as arranged for connecting two shaft 15 ends, the section being taken on the line 2—2 of Fig. 1. as shown in Figs. 4 and 5, may also be used as driving lugs if desired, in which case, lugs It will not be required. It will readily be seen that the spring loaded bolts 01 may be adjusted so as to hold the driving shoes 1‘ out of engagement with the driven member is until a desired speed is at tained by the driving shaft b, after which they will move radially outward sliding up the conical surfaces 9, the ?ange e moving slightly axially outward, driving connection being thereby ob- ' tained. ' Fig. 3 is a perspective view of the boss and con nected parts. . Fig. 4 is a similar View to Fig. 1 illustrating a 20 modi?cation, parts of the device being omitted, and are drilled to receive the spring loaded bolts 03; these lugs or ears, by slightly altering the design , Fig. 5 is section taken on the line 5—-5 of Fig. 4. The constructional details and form may be Varied from those described and illustrated, with, The driven member 70 may be combined with a pulley or wheel or may be arranged as a ?xed member, should it be desired to use the clutch as a ‘centrifugal brake. 20 I claim: 1. A centrifugal clutch comprising a driving member and a driven member, shoes carried by the'driving member, ?anges mounted on the driv ing member coaxial thereto, one of said ?anges 25 out departing from the invention. being spring controlled the shoes being clamped The driving boss a is keyed to the driving shaft 1) and may be cast integral with a ?ange c, this flange 0 being provided with holes to receive the heads of the spring loaded bolts d. A ?ange e is 30 loosely mounted on boss at and held in position by the spring loaded bolts 01. The driving shoes 1‘ are usually lined with a friction material 7‘ and between said ?anges so as to be held out of en gagement with the driven member below a pre are provided with a groove at each side of suitable V-section forming conical surfaces, and are 35 clamped between the ?anges c and e under pres sure of the spring loaded bolts d, both these ?anges having conical surfaces'g at their periph ery which fit into the V-grooves in the driving shoes 7‘. On reference to Fig. 1 it will be seen that 40 the driving boss (1 is provided with a number of driving lugs h according to the number of driv ing shoes used (four being shown), these form determined speed of the clutch, and said ?anges having conical surfaces adapted to engage coned 30 surfaces formed on both sides of each shoe. 2. A centrifugal clutch comprising a driving member and a driven member provided with a driving boss, shoes carried by the driving member, a ?ange mounted fast on the driving boss, holes in said ?ange, a second ?ange loosely mounted on 35 the driving boss and held in position by spring loaded bolts the heads of which are located in the ?rst mentioned ?ange, conical surfaces pro vided on said ?anges and coned surfaces formed on both sides of each shoe to co-operate there 40 with. ' ALFRED ANDERTON.