US3178954A - Timing gear mechanism for looms - Google Patents
Timing gear mechanism for looms Download PDFInfo
- Publication number
- US3178954A US3178954A US240368A US24036862A US3178954A US 3178954 A US3178954 A US 3178954A US 240368 A US240368 A US 240368A US 24036862 A US24036862 A US 24036862A US 3178954 A US3178954 A US 3178954A
- Authority
- US
- United States
- Prior art keywords
- gear
- stud
- shaft
- cam shaft
- pinion
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
- D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C2700/00—Shedding mechanisms
- D03C2700/01—Shedding mechanisms using heald frames
- D03C2700/0105—Cam-driven heald frame movement
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02095—Measures for reducing number of parts or components
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
- F16H2057/0235—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly specially adapted to allow easy accessibility and repair
-
- 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
- Y10T74/19—Gearing
- Y10T74/19219—Interchangeably locked
-
- 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
- Y10T74/21—Elements
- Y10T74/2101—Cams
Definitions
- a more specific object is that of reducing the number of necessary parts required in changing weaving styles.
- a further object of the invention is that of facilitating the changing over procedure in going from one style to another and thereby reducing the stoppage time.
- Timing gear and supporting bracket of unitary construction adapted to be adjusted to mesh within a train of gears.
- the timing of the underneath parts is controlled through a gear train by a change gear or timing gear.
- the harness cams are generally mounted to rotate with an auxiliary shaft in timed relationship to the loom driving shaft to draw down each harness frame in accordance with the material style desired.
- the number of harness frames suitable for such a loom may vary between two and six generally, and by changing the pattern in which they are raised and lowered, a number of cloth constructions may be produced.
- the invention comprises a reducing gear suitable for a particular weave, an adjustable eccentric stud on which the gear will rotate, and a gear supporting bracket adapted to hold the reducing gear fixedly positioned to mesh with its two coacting gears.
- the gear bracket is adjustable in a declining lineal direction only but is restrained from any other movement so that all the gears remain in proper engagement. Even though forces should loosen the supporting bracket, the reducing gear cannot go out of mesh.
- the distance between centers of the driving gear and the harness cam shaft gear remains constant so that all necessary adjustment is made with the reducing gear bracket and stud. Timing of the harness cam shaft is controlled by changing the gear ratios through substitution of only the reducing gear.
- FIG. 1 is a perspective view of the invention as applied and seen from the rear of the loom;
- FIG. 2 is a perspective view of the upright center bearing bracket showing the extended groove
- FIG. 3 is a perspective view of a reducing gear in position Within a supporting bracket showing the extended tongue
- FIG. 4 is a perspective view of the eccentric stud removed from the supporting bracket.
- FIG. 1 the timing gear mechanism is shown in position in a loom with only essential parts displayed to locate the inventive portion.
- a loomside i1 is shown interconnected to its opposite loomside (not shown) by a front girt 12 and a back girt 13. Laterally extended between the front and back girts are two middle girts l4 and 15 which support the loom underneath pulldown parts with only those necessary to the disclosure being shown.
- Heddle harness frames 16 support jack sticks 17 by supporting wire hooks i8 and all are shown suspended in their normal location above the underneath parts.
- a constantly rotating driven shaft 19, in this case the loom cam shaft, is used for driving the timing gear means generally designated 2%.
- a pinion 21 is fastened to rotate with shaft 19 and is the driving end of this gear train. It will now be unnecessary to remove pinion 21 when changing cioth constructions.
- each middle girt 14 and 15 Extending upward from the intermediate portion of each middle girt 14 and 15 and fastened thereto are two upright center bearing brackets 22 and 23. Shaft center bearings 24 and 25 for supporting shaft 19 are fastened to upright brackets 22 and 23 as with bolts 26.
- a harness cam shaft 27 is supported by bearings 23 and 29 fastened to the upper surface of the middle girts. Harness cams 3% are fastened to rotate with shaft 27 when turned by gear 31 which is securely fixed to an extended end 32 of shaft 27.
- An idler gear is, in this instance, also a reducing gear 33 and serves to transmit power from the pinion 21 to the harness cam shaft gear 31.
- Reducing gear 33 as shown is one of a series of five gears which may be interchanged to time the harness cams 30 for the complete range from the two-shade to the six-shade condition.
- the reducing gear is a combination of two gears of unitary construction in which one side is in mesh with pinion 21 and the inner side is in mesh with gear 31. In a step by step ratio variation, that is, by a gradual increase in diameter of the outer portion combined with a decrease in the diameter of the inner portion, a proper reduction in rotation ratio between the pinion and the driven gear will be developed. By inserting the reducing gear for the desired shade condition and adjusting its center in relation to the two fixed center gears, the required rotating speed will be obtained.
- reducing gear 33 is seen in position within a U-shaped supporting member 34 comprised of a flat planar forward surface and two extended legs, the opposing ends of which have concentric openings 35 to support a stud to be later explained.
- the left side of supporting member 34 as seen in FIG. 3 is adapted for two bolts or other fastening means through holes 36 and 37.
- An extended raised tongue 38 is machined on the side of supporting member 34 between holes 36 and 37.
- This tongue 38 is intended to be insertable into a groove 39 machined in the outward side of bracket 23 (FIG. 2).
- On either side of the groove 39 are two slotshaped openings 40 and 41 for bolting, or fastening in some manner, the supporting bracket 34.
- Groove 39 is extended downwardly and rearwardly as viewed from the front of the loom and may be inclined at approximately 35 from the vertical.
- a stud generally designated 42 (FIG. 4) is comprised of a small supporting end 43 and a large supporting end 44. These ends are cylindrical and concentric and are designed to pass through the concentric openings 35, one of which is larger than that shown in FIG. 3.
- the intermediate portion 45 of stud 42 is a further cylindrical section eccentric to the ends 43 and 44.
- the reduction gear 33 is freely rotatable on the eccentric portion 45 of the stud and may be lubricated by a fitting 46 in the squared adjusting end 47. Stud 42 is secured in position by set screws 48 at either end of supporting member 34 (FIG. 1).
- the adjustable range of these two methods is sufiicient to allow the use of any one in a series of reducing gears for all variations of the six-shade conditions of weaving.
- Harness cam and timing gear means for looms having in combination a constantly rotating driven shaft in said loom, a pinion on said driven shaft, a cam shaft with a plurality of cams mounted thereon, a gear on said cam shaft, an interchangeable reducing gear adapted to mesh with said pinion and said cam shaft gear, an adjustable stud comprising two concentric end portions for journaling said stud and an eccentric intermediate portion for free rotation of said reducing gear, a supporting means for said stud and said reducing gear mounted adjustably and removably as a unit, said supporting means formed as a generally U-shaped member comprising a flat planar surface connecting two extended essentially parallel legs.
- a harness cam and timing gear means which comprises a pinion on said driven shaft, a cam shaft with a plurality of cams mounted thereon, a gear on said cam shaft, an interchangeable reducing gear adapted to mesh with said pinion and said cam shaft gear, an adjustable stud with concentric end portions for journaling said stud and an eccentric intermediate portion for free rotation of said reducing gear, bearings mounted on each said middle girt for said cam shaft, one end of said cam shaft extended outwardly beyond said cam shaft bearing to support said gear, said pinion being mounted on said driven shaft outwardly of one of said upright brackets, a supporting means for said stud and said reducing gear adjustably mounted to the outward side of said one upright bracket, said supporting means formed as a generally U-shaped member comprising a fiat planar surface connecting two extended essentially parallel legs.
- a harness cam timing means which comprises a reducing gear adapted to mesh with said pinion and said cam shaft gear, said reducing gear being interchangeable with others to vary the driving ratio between said pinion and said cam shaft gear, an adjustable stud on which said reducing gear is free to rotate including two concentric journal end portions and an eccentric intermediate portion for rotation of said reducing gear, and a removable adjustable supporting means for said stud and said reducing gear, said supporting means being adapted to adjust for proper meshing of the gears.
- Harness cam and timing gear means for looms having in combination a constantly rotating driven shaft in said loom, a pinion on said driven shaft, a cam shaft with a plurality of cams mounted thereon, a gear on said cam shaft, upright center bearing brackets with bearing means for supporting said cam shaft at spaced points adjacent the center portion thereof, an interchangeable reducing gear adapted to mesh with said pinion and said cam shaft gear to control the speed of rotation of the latter gear, an adjustable stud on which said reducing gear is free to rotate, and a removable supporting means for said stud and reducing gear adjustably mounted to the outward side of one of said upright center bearing brackets.
- Harness cam and timing gear means for looms having in combination a constantly rotating driven shaft in said loom, a pinion on said driven shaft, a cam shaft with a plurality of cams mounted thereon, a gear on said cam shaft, an interchangeable reducing gear adapted to mesh with said pinion and said cam shaft gear to control the speed of rotation of said cam shaft gear, an adjustable stud having an eccentric intermediate portion on which said reducing gear is adapted to rotate and said stud including concentric end portions adapted to be supported by and selectively rotatable in aligned apertures provided in an adjustable and removable supporting means whereby said reducing gear through the combination of the eccentric portion of said stud and the adjustable supporting means therefore is selectively movable into and out of meshing relation with said pinion and said first mentioned gear.
- a harness cam timing gear supporting means for looms which comprises an upright center bearing bracket, a reducing gear support adapted to be removably and adjustably fastened to said bracket, said 6 support being formed as a generally U-shaped member References Qited by the Examiner comprising a flat planar surface connecting two extended, UNITED STATES PATENTS essentially parallel legs, an elongated tongue protruding from the outward surface of one of said legs and eX- 2,005,070 6/35 BltZeF 74567 X tending in an angular direction relative thereto, a match- 5 2,237,466 4/41 Zimmefmalm 7 325 ing groove in the outer surface of said bracket adapted 9 ,606 2/ 50 Hyland 74-325 X to receive said tongue, said groove and tongue being 2,585,218 2/52 Borngraeber 74--325 formed to restrict said support to linear adjustment, and 2,735,309 2/56 Tew 74325 fastening means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US240368A US3178954A (en) | 1962-11-27 | 1962-11-27 | Timing gear mechanism for looms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US240368A US3178954A (en) | 1962-11-27 | 1962-11-27 | Timing gear mechanism for looms |
Publications (1)
Publication Number | Publication Date |
---|---|
US3178954A true US3178954A (en) | 1965-04-20 |
Family
ID=22906249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US240368A Expired - Lifetime US3178954A (en) | 1962-11-27 | 1962-11-27 | Timing gear mechanism for looms |
Country Status (1)
Country | Link |
---|---|
US (1) | US3178954A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214568A (en) * | 1978-05-26 | 1980-07-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Drive unit for a distributor and a fuel pump |
US6513401B2 (en) * | 2000-02-02 | 2003-02-04 | Graziano Trasmissioni S.P.A. | Transmission unit for axles for vehicles with electric drive |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2005070A (en) * | 1933-05-04 | 1935-06-18 | Textile Machine Works | Lace attachment for full fashioned knitting machines |
US2237466A (en) * | 1939-06-01 | 1941-04-08 | Gould & Eberhardt | Support for adjustable change gear studs |
US2498606A (en) * | 1945-07-16 | 1950-02-21 | John Deere Van Brunt Co | Adjustable gearing |
US2585218A (en) * | 1949-11-25 | 1952-02-12 | John Deere Van Brunt Co | Gearing for grain drills |
US2735309A (en) * | 1956-02-21 | Change gear support for spinning frames and the like | ||
US2792713A (en) * | 1954-05-13 | 1957-05-21 | West Point Mfg Co | Loom take-up assembly |
-
1962
- 1962-11-27 US US240368A patent/US3178954A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735309A (en) * | 1956-02-21 | Change gear support for spinning frames and the like | ||
US2005070A (en) * | 1933-05-04 | 1935-06-18 | Textile Machine Works | Lace attachment for full fashioned knitting machines |
US2237466A (en) * | 1939-06-01 | 1941-04-08 | Gould & Eberhardt | Support for adjustable change gear studs |
US2498606A (en) * | 1945-07-16 | 1950-02-21 | John Deere Van Brunt Co | Adjustable gearing |
US2585218A (en) * | 1949-11-25 | 1952-02-12 | John Deere Van Brunt Co | Gearing for grain drills |
US2792713A (en) * | 1954-05-13 | 1957-05-21 | West Point Mfg Co | Loom take-up assembly |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214568A (en) * | 1978-05-26 | 1980-07-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Drive unit for a distributor and a fuel pump |
US6513401B2 (en) * | 2000-02-02 | 2003-02-04 | Graziano Trasmissioni S.P.A. | Transmission unit for axles for vehicles with electric drive |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DRAPER CORPORATION, Free format text: CHANGE OF NAME;ASSIGNOR:DELTA ACQUISITION CORPORATION,;REEL/FRAME:004097/0735 Effective date: 19820920 Owner name: DELTA ACQUISTION CORPORATION; HORNADAY RD., GREENS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROCKWELL INTERNATIONAL CORPORATION;REEL/FRAME:004113/0020 Effective date: 19820321 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT INC., A CORP. OF DE Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION A CORP. OF GA F/K/A DELTA ACQUISITION CORPORATION;REEL/FRAME:004070/0533 Effective date: 19821021 |
|
AS | Assignment |
Owner name: DRAPER CORPORATION, GREENSBORO, NORTH CAROLINA A C Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:004664/0583 Effective date: 19860331 |