US2926533A

US2926533A - Motion translating means

Info

Publication number: US2926533A
Application number: US822294A
Authority: US
Inventors: Edwin J Markoski
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-06-23
Filing date: 1959-06-23
Publication date: 1960-03-01
Anticipated expiration: 1977-03-01

Description

March 1, 1960 .E. J. MARKOSKI 2, 26,533 I MOTION TRANSLATING MEANS Filed June 25. 1959 2 Sheets-Sheet 1 F: a; .E

INVENTOR Eda/1' JMarkasA i ATTORNEY March 1, 1960 E. J. MARKOSKI 2,926,533

MOTION TRANSLATING MEANS Filed June 23, 1959 2 Sheets-Sheet 2 INVENTOR Z4 Z0 fdwi/rJMdrx oskf ATTORNEY E nited States My invention relates to motion translating means for converting rotary motion into reciprocating motion.

One of the objects of my invention is to provide motion translating means which is so constructed and arranged that continuous and unidirectional rotating motion is converted into reciprocating motion.

Another object of my invention is to provide means of the foregoing described character wherein gearing is employed for converting continuous and unidirectional rotating motioninto reciprocating motion.

A further object of my invention is to provide means of the foregoing described character wherein gear actuated racks or the like are employedfor alternate operation in opposed directions to'eifect reciprocation of one component from a continuous. unidirectional rotating component.

An important object of my'invention is to' provide means of the foregoing described. character which is simple in construction, durable in use, economical in manufacture,- and efficient in operation.

With the above and other objects in view, as will hereinafter appear, the invention consists in the combination and arrangement of partshereinafter set forth I and illustrated in the accompanying drawings from which the several features of the invention andthe advantages attained thereby will be readily understood by those skilled in the art. 7

Referring to the drawings wherein like reference are

t

7 and 18 and normally maintained in engagement with-at least one of the confronting ends as' hereinafter made.

, shafts or the like, within the housing and which characters designate like parts throughout the several views: I

Figure l is a side'elevation of myinvention and illustrating'the same equipped with a saw and motor;

Fig. 2 is a sectional view taken'on the line 2-2 of Figure 1; v

Figures 3, 4 and 5 are sectional views taken on-the linej33 of Figure 2 and illustrating various positions of the gearing and racks within the housing;- and Figure 6 is a detail sectional view on an enlarged scale and taken on the line 6-=6 'of Figure 5.

In practicing my invention, as; illustrated the drawings, 1 provide a sectional housing. 5 including a pair of plate-like side and

end walls

6 and 7, respectively, the sections of the housing being secured together by screws 8 or the like. A drive shaft 9 extends transversely through the housingand-is rotatably ionrualed in the side walls 6 and has keyed thereto, between the walls 6, a segment gear 10 for meshing with a pair of gears 11 and 12 with the latter gear constituting an intermediate gear meshing with a gear 13. The

gears

11, 12, and 13 are fixed to suitable'shafts 14, 15, and 16, respectively, rotatably journaledin the walls 6. g p

The gears 11 and13 are inmesh with a pair of aligned relatively lengthwise movable,

gear racks

17 and 18,

respectively, slidably mounted ona bar 19 disposed within the housing 5 for reciprocation therein. The bar 19 is provided with a pair of spaced lugs or steps 20 disposed between the confronting ends ofIthe racks 1-7 rollers 24 function to facilitate reciprocation of the bar 19zand maintain the

racks

17 and 18 in mesh with the gears 11 and 13 as heretofore described.

A coil spring 26 is sleeved about the rod 22 between the confronting ends of the racks 17 and18 and functions to urge the racks away from each other; The bar 19' has one end extending out of the housing through one of the end walls 7 and which end is' equipped with a suitable tool, forinstanc'e, asaw 27. One of the side walls 6' of the housing has secured thereto power means. for instance, an electric motor 28, which is suitably connected to the drive shaft 9 for rotating the latter to impart reciprocation to the saw 27. The casing of the motor may be provided with a switch 29 for con trolling the motor and handles 30 for supporting the device to facilitate operation of the saw 27 by the user.

In operation'-assuming' the

gears

10, 11, 12, and 13,

racks

17 and 18, and the bar 19 are in the positions disclosed in Figure 3 of the drawings-"upon energization of the motor 28, the segment gear 10 rotates clockwise, as indicated by the arrow, and effects rotation of the gear 11 counterclockwise, as also indicated by the arrow,'with the result that the rack 17 will'be moved dextrally and in engaged relation with'the lugs 20 and thus effect linear movement of the bar 19in unison with I the rack 17.

As the gear 10 rotates, the leading tooth L thereof will eifect meshing with the gear 12, as illustratedin Figure 4, while its trailing tooth T is still in mesh with the gear 11, with the result that the gear 12 will be,

rotated counterclockwise and impart clockwise rotation to the gear 13 which, in turn, will .move the rack '18 relative to the bar 19 and towards the lugs 20 against the tension of the spring 26. As the rack 18 is thus I moved it will ultimately engage the lugs 20 as depicted in Figure- 5;. Substantially simultaneously with the engagement of the rack 18 with the lugs 20, demeshing of the gear 10 with the gear 11 will obtain whereby the of the rack 17. Y. a When the rack 18 thus engages the lugs 2li,-the bar 19 will thence be'moved sinistrally lengthwise with the rack 18 until such time as the leading tooth T of the gearflll) meshes with the gear 11 whereupon the gear 11 will then move the rack 17 towards the lugs 20 for engagement therewith upon demeshing of the

gears

10 and 12. As the gear 10 is rotated out of mesh with the gear12 both the latter and the gear 13 will be rotated clockwise and counterclockwise, respectively, by the action of the spring 26 moving the rack 18 deittrally relative to the bar 19, it being noted that the rod 22 advances in unison with thejrack actuated by the spring 26.

As herein disclosed, it will be apparent that upon rotation of the gear 10 the bar 19 will be reciprocated through the instrumentality of the gearing and racks the housing and thus translate rotary motion into linear or reciprocating motion for a multiplicity of uses. It will also be apparent that by adjusting the nuts 23 on the ends of the rod 22 the gears 11 and 12 may be moved through the racks to eifect proper meshing with the gear 10. The racks may also be adjusted on the bar 19 rela--v tivev to the lugs 20 to effect proper timed engagement therewith.

While I have disclosed gears and racks having teeth of a customary design, other forms may be employed suitable for the translation of one type of motion to another. In actual reduction to practice, the various components are adjusted in such a manner that engagement of the racks with the lugs occurs substantially simultaneously with the meshing and demeshing of the gear with the gears 11 and 12 whereby the pause .at the end of each stroke of the bar 19 is only momentary or almost negligi ble thereby permitting high speed reciprocation of the bar.

Without further elaboration, the foregoing will so fully explain the invention that othersrnay, by applying current knowledge, readily adapt the same for use under various conditions of service. Moreover, it is not indispensable that all the features of the invention be used conjointly since they may be employed advantageously in various combinations and subcombinations.

-It is obvious that the invention is not confined solely to the use herein disclosed in connection therewith as it may be utilized for any purpose to which it is adaptable. It is, therefore, to be understood that the invention is not limited to the specific construction as illustrated and de scribed, as the same is only illustrative of the principles involved which are capable of extended application in various forms, and the invention comprehends all construction within the scope of the appended claims.

What is claimed is:

-. 1. In motion translating means, a pair of spaced driven gears and a third gear disposed in meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair, a reciprocating member, a pair of gear racks meshing with one of said pair and said third gear, respectively, for moving said racks, said racks being slidably mounted on said member for movement relative to each other and for moving said member in unison therewith alternately, compensating means for urging said racks from each other upon demeshing of said drive gear with one of said pair and permitting movement of said racks toward each other when said drive gear is disposed in meshed relation with said pair, and motion limiting meansfor engaging said racks for limiting the movement of the racks towards each other and effecting unitary movement of said racks alternately with said member upon meshing and demeshing of said drive gear with said pair, respectively, whereby, reciprocating movement is imparted to said member by rotation of said drive gear.

2. In motion translating means, a pair of spaced driven gears and a third gear disposed in meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair, a reciprocating bar, a pair of gear racks meshing with one of said pair and said third gear, respectively, for moving said racks towards each other, said racks being slidably mounted on said bar for movement relative to each other and for moving said bar in unison therewith alternately, resilient means disposed between said racks for urging the latter from each other upon demeshing of said drive gear with one of said pair and permitting movement of gears and a third gear disposed in meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair, a reciprocating bar, a pair of gear racks meshing with one of said pair and said third gear, respectively, for moving said racks towards each other, said racks being slidably mounted on said bar for movement relative to each other and for moving said bar in unison therewith alternately, a spring disposed between said racks for urging the latter from each other upon demeshing of said drive gear with one of said pair and permitting movement of said racks towards each other when said drive shaft is disposed in meshed relation with said pair, and lugs carried by said bar and interposed between said racks for engaging the latter for limiting the movement of the racks towards each other and effecting unitary movement of said racks alternately with said bar upon meshing and demeshing of said drive gear with said pair, respectively, whereby, reciprocating movement is imparted to said bar by rotation of said drive gear.

4. In motion translating means, a pair of spaced driven gears and a third gear disposed in meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair, a reciprocating bar, a pair of gear racks meshing with one of said pair and said third gear, respectively, for moving said racks towards each other, said racks being slidably mounted on said bar for movement relative to each other and for moving said bar in unison therewith alternately, retaining means for said racks for maintaining the latter in preselected positions relative to said gears, resilient means disposed between said racks for urging the latter from each other upon demeshing of said drive gear with one of said pair and permitting movement of said racks towards each other when said drive gear is disposed in meshed relation with said pair, and stop means interposed between said racks for engaging the latter for limiting the movement of the racks towards each all) , meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair and with all of said gears being encased within said housing, a member reciprocally mounted in said housing and having a section extending out of said housing for mounting a tool, a pair of gear racksvdisposed within said housing and meshing with once)? said pair and said third gear, respectively, for moving said racks, said racks being slidably mounted on said member Withinsaid housing for movement relative to each other and for moving said member in unison therewith alternately, compensating means within said housing for urging said racks from each other upon demeshing of said drive gear with one of said pair and permitting movement of said racks towards each other when said drive gear is disposed in meshed relation with said pair, motion limiting means for engaging said racks for limiting the movement of the racks towards each other and efiecting unitary movement of said racks alternately with said member upon meshing and demeshing of said drive gear with said pair, respectively, whereby, reciprocating movement is imparted to said member by rotation of said drive gear, and power means disposed outside of said housing and connected to said drive gear for rotating the latter.

6. A motion translating device comprising a housing, a plurality of components mounted within said housing and including a pair of spaced driven gears and a third gear disposed in meshed relation with one of said pair, a drive gear alternately disposed in meshed and demeshed relation with each gear of said pair, a reciprocating bar having a section extending out of said housing for mounting a tool, a pair of gear racks meshing with one of said pair and said third gear, respectively, for moving said racks towards each other, said racks being slidably mounted on said bar for movement relative to each other and for moving said bar in unison therewith alternately, a spring disposed between said racks for urging the latter from each other upon demeshing of said drive gear with one of said pair and permitting movement of said racks towards each other when said drive gear is disposed in meshed relation with said pair, and lugs carried by said bar and interposed between said racks for engaging the latter for limiting themovement of the racks towards each other and effecting unitary movement of said racks alternately with said bar upon meshing and demeshing of said drive gear with said pair, respectively, whereby, reciprocating movement is imparted to said bar by rotation of said drive gear, and power means connected to said drive gear for rotating the latter.

Cresswell Feb. 14, 1888 Nieman Mar. 25, 1930