US1782746A - Crank disk - Google Patents
Crank disk Download PDFInfo
- Publication number
- US1782746A US1782746A US414440A US41444029A US1782746A US 1782746 A US1782746 A US 1782746A US 414440 A US414440 A US 414440A US 41444029 A US41444029 A US 41444029A US 1782746 A US1782746 A US 1782746A
- Authority
- US
- United States
- Prior art keywords
- disk
- tumblers
- secured
- slots
- disks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/22—Cranks; Eccentrics
- F16C3/30—Cranks; Eccentrics with arrangements for overcoming dead-centres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18144—Overcoming dead center
Definitions
- This invention relates to a crank disk adapted to be driven by a reciprocating piston and the object of thepresent construction is to facilitate starting from a dead center position. With this end in view, the crank disk,
- Figure 2 is a section takenon the line 2--2 of Figure 1.
- Figure 3 is a section takenon the line 33 of Figure 1.
- Figure V4 is a perspective view of one of the tumblers. i
- the invention is associated with a driven shaft 5 to whichv a sleeve or hub 6 is secured by a set screw7 or other suitable means.
- a disk or 3.0 the hub 6 and is provided with curved ini wardly .inclinedjslots 9 adapted to receive equally spaced tumblers 10 which simultaneously engage the ends of the slots to drive the disk or wheel 8 and thereby rotate the shaft 5.
- the tumblers 10 are carried by a crank disk 11 which is mounted on an extension of the hub 6 and which is provided with a wrist piny12 of any suitable type adapted to be connected with a reciprocating piston by which it is driven.
- the disks 8 andll are oonnected'by a. number of rivets 13 which are long enough to permit a relative movement of one disk on the other without binding.
- One of the disks, as 8, isprovided with slots 14: to permit thisrelative movement.
- Each tumbler 10 is formed with a pin 15 which is journaled in the disk 11 and the tumblers may be held in the slots 9 by suitwheel 8 is integrally or otherwise secured to able retaining means such as an annular plate l 16 secured to thedisk Sby screws 17..
- Thetumblers 10 are spaced at equal in tervals about the center of the. disk 11 and when the diskis drivenf'forwardly one pin 15 is slightly in advance of the wrist pinl2 while the end of the slot 9 is slightly in advance of the. center line through the wrist pin and the shaft 5.
- the elongated slots 9 permit a lost motion connection between the disks 8 and 11 which facilitates starting from a dead center position and the power which is transmitted from the disk 11 to the disk 8 is equally distributed tangentially about the center of theshaft 5.
- the con- .65 struction described makes it possible to start easily from a dead center position, the leverage is uniformly distributed and vibration.
- hat I claim is: i h 1.
Description
Nov. 25, 1930. L. ROBERTSON CRANK DISK Filed D80. 16, 1929 Patented Nov. 25, 1930 UNITED STATES rnonnivcn nonnn'rsoimor .TonEno; oHIo CRANK nrsx Application filed December is; i929. Serial n). 414,440. i
This invention relates to a crank disk adapted to be driven by a reciprocating piston and the object of thepresent construction is to facilitate starting from a dead center position. With this end in view, the crank disk,
which carries the wrist pin, has a lost motion connection with an adjacent disk secured to the shaft to be driven. The last mentioned disk is driven through the medium of equidistant dogs or tumblers which are so disposed with relation to the wrist pin as to at Y ford the most appropriate distribution of the load. v The invention will be more particularly de- 1 scribedin connectionwith the accompanying drawings, inwhich l Figure 1 is a side elevation'of'the crank disk and'the elements associated therewith, parts being broken away.
Figure 2 is a section takenon the line 2--2 of Figure 1. a
Figure 3 is a section takenon the line 33 of Figure 1. l Figure V4: is a perspective view of one of the tumblers. i
As illustrated in the drawings, the invention is associated with a driven shaft 5 to whichv a sleeve or hub 6 is secured by a set screw7 or other suitable means. A disk or 3.0 the hub 6 and is provided with curved ini wardly .inclinedjslots 9 adapted to receive equally spaced tumblers 10 which simultaneously engage the ends of the slots to drive the disk or wheel 8 and thereby rotate the shaft 5. The tumblers 10 are carried by a crank disk 11 which is mounted on an extension of the hub 6 and which is provided with a wrist piny12 of any suitable type adapted to be connected with a reciprocating piston by which it is driven. The disks 8 andll are oonnected'by a. number of rivets 13 which are long enough to permit a relative movement of one disk on the other without binding. One of the disks, as 8, isprovided with slots 14: to permit thisrelative movement. I
Each tumbler 10 is formed with a pin 15 which is journaled in the disk 11 and the tumblers may be held in the slots 9 by suitwheel 8 is integrally or otherwise secured to able retaining means such as an annular plate l 16 secured to thedisk Sby screws 17..
is eliminated.
WVhile I have shown and described specifi- J9 cally the preferred form of the invention, it is to be understood that the inventionincludes all such modifications as may fall within the scope of the appended claims.
hat I claim is: i h 1. The combination with a rotatable shaft and a disk secured thereon, of a seconddisk coaxial with the first disk, a wrist pin see cured to the second disk, and a driving connection between the two disks comprising tumblers pinned to one disk, theother disk having slots receiving saidtumblers, the slots being longer than the tumblers in a circumferential direction to allow a lost motionbetween the disks.
2. The combination with a rotatable shaft and a disk secured thereon, of a second disk coaxial with the first disk, a wrist pin secured to the second disk, tumblers pivotally mounted on one disk, the other disk having slots receiving said tumblers, said slots having greater length circumferentially than the tumblers to permit a limited movement of one disk circumferentially on the other.
3. The combination with a rotatable shaft anda disk secured thereon, of a second disk coaxial with the first disk, a wrist pin secured to the second disk, and a driving connection between the two disks comprising plvot pins carried by one disk with tumblers extending forwardly therefrom adjacent one face of the disk and curved inwardly, the other disk having correspondingly shaped slots receiving said tumblers, said slots being longer than the tumblers to allow a lost 7 motion between the disks.
l. 'lhecombination with a rotatableshaft and a disk secured thereon, of a seconddisk coaxial with the first disk, a. wrist pin secured to the second disk, tumblers pivotally mounted on the face of one disk which is adjacent the other disk, said tumblers being curved forwardly and inwardly from their pivots, said other disk having slots receiv ing the tumblers but of greater length than the tumblers to permit a limited movement of one disk circumferentially on the other.
In testimony whereof I have hereunto signed my name to this specification.
LAURENCE ROBERTSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US414440A US1782746A (en) | 1929-12-16 | 1929-12-16 | Crank disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US414440A US1782746A (en) | 1929-12-16 | 1929-12-16 | Crank disk |
Publications (1)
Publication Number | Publication Date |
---|---|
US1782746A true US1782746A (en) | 1930-11-25 |
Family
ID=23641455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US414440A Expired - Lifetime US1782746A (en) | 1929-12-16 | 1929-12-16 | Crank disk |
Country Status (1)
Country | Link |
---|---|
US (1) | US1782746A (en) |
-
1929
- 1929-12-16 US US414440A patent/US1782746A/en not_active Expired - Lifetime
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