US2442112A - Intermediate gear fixed to a machine frame - Google Patents

Intermediate gear fixed to a machine frame Download PDF

Info

Publication number
US2442112A
US2442112A US588627A US58862745A US2442112A US 2442112 A US2442112 A US 2442112A US 588627 A US588627 A US 588627A US 58862745 A US58862745 A US 58862745A US 2442112 A US2442112 A US 2442112A
Authority
US
United States
Prior art keywords
intermediate gear
axle
gear fixed
machine frame
machine
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
Application number
US588627A
Inventor
Bechler Andre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2442112A publication Critical patent/US2442112A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley

Definitions

  • This invention relates to an intermediate gear fixed to a machine.
  • This invention relates to an intermediate gear fixed to the frame of a machine, which allows to solve most of the problems of adapting endless straps running over this gear, in that it comprises two discs destined to be disposed on each side of a frame wall of the machine, this wall having an opening traversed by fixing means of the discs, preferably by a rod.
  • This opening is of such a size that the position of the axle of the intermediate gear can be adapted to the variable length of two straps running over the gear and forming an angle between them. This adaptation can take place whatever the differences in the elongation of the straps resulting.
  • a fixing rod coaxial to the axle of the intermediate gear is used. In small machines it might form the axle itself of this gear.
  • the pulleys maybe arranged either on one side or be distributed on both sides of the wall traversed.
  • Fig. 1 is a general view of this example, and
  • Fig. 2 is an axial section through the intermediate gear, on a larger scale.
  • the intermediate gear l5 comprises two discs I9 and 20 (Fig. 2).
  • the first one is made in one piece with the axle 2
  • On this axle a step pulley 22 is rotatably mounted, by means of which the ratio required between the speed of the motor and that of the mainshaft can be adjusted.
  • is traversed by a coaxial fixing rod 23 having a thread 24 engaging a thread of the disc 20.
  • These discs are arranged on both sides of an opening 25 which they cover entirely. This opening is, however, great enough in order to allow the rod 23 to occupy different positions which are several centimetres distant from one another, while it always remain completely covered by these discs.
  • of intermediate gear can always be adjusted in such a way that the two straps l4 and I6 forming an angle between them can always be tightened with the exactness required and this independently of the differences of elongation occurring on use.
  • the intermediate gear might have two step pulleys placed on either side of the frame wall and connected by an axle traversing the opening 25.
  • the fixing of the discs is then, of course, adapted accordingly.
  • a frame wall having an opening, an intermediate gear, two straps forming an angle and running over said intermediate ear, said intermediate gear comprising, an axle, two discs disposed on each side of said frame Wall, means traversing said opening, destined to fix said discs to said frame wall, said opening having such a size that said means can be radially displaced in any direction necessary to adapt the position of said axle to the variable length of said straps.
  • said means being a fixing rod coaxial to said axle
  • said intermediate gear comprising step pulleys arranged on the same side of said frame Wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

May 25, 1948. A. BECHLER INTERIEDIATE GEAR FIXED TO A MACHINE FRAME Filed April 16, 1945 Patented May 25, 1948 OFFICE INTERMEDIATE GEAR FIXED TO A MACHINE FRADIE Andr Bechler, Moutier, Switzerland Application April 16, 1945, Serial No. 588,627 In Switzerland April 24, 1944 (C1. i l-4242.10)
3 Claims. 1
This invention relates to an intermediate gear fixed to a machine.
There are cases in which an intermediate gear is driven by an endless strap e. g., of trapezoidal cross section, while this gear drives an axle by means of a similar strap, These straps cannot be shortened before the expiration of a certain time of use during which they have been lengthened. It is not convenient to use idlers for tightening such straps. Therefore the only possibility remaining up till now was to displace the axles lying before and after the intermediate gear, in that the lengthening of the straps depends on their initial length and, therefore, varies from one strap to another.
This invention relates to an intermediate gear fixed to the frame of a machine, which allows to solve most of the problems of adapting endless straps running over this gear, in that it comprises two discs destined to be disposed on each side of a frame wall of the machine, this wall having an opening traversed by fixing means of the discs, preferably by a rod. This opening is of such a size that the position of the axle of the intermediate gear can be adapted to the variable length of two straps running over the gear and forming an angle between them. This adaptation can take place whatever the differences in the elongation of the straps resulting.
from use may be. Generally a fixing rod coaxial to the axle of the intermediate gear is used. In small machines it might form the axle itself of this gear. The pulleys maybe arranged either on one side or be distributed on both sides of the wall traversed.
The accompanying drawing illustrates, by way of example, one embodiment of the object of invention.
Fig. 1 is a general view of this example, and
Fig. 2 is an axial section through the intermediate gear, on a larger scale.
In this example it is a question of a machine tool with individual drive by means of an electric motor, To the frame IU of the machine a bracket H is fixed, carrying a motor l2 whose pulley I3 takes along an intermediate gear I5 by means of an endless strap I4 with trapezoidal cross section. Over another step of the gear runs a strap I6 driving a pulley l'l fixed to the main-shaft I8 of the machine.
The intermediate gear l5 comprises two discs I9 and 20 (Fig. 2). The first one is made in one piece with the axle 2| of the gear. On this axle a step pulley 22 is rotatably mounted, by means of which the ratio required between the speed of the motor and that of the mainshaft can be adjusted.
Axle 2| is traversed by a coaxial fixing rod 23 having a thread 24 engaging a thread of the disc 20. These discs are arranged on both sides of an opening 25 which they cover entirely. This opening is, however, great enough in order to allow the rod 23 to occupy different positions which are several centimetres distant from one another, while it always remain completely covered by these discs.
Hence it follows that the axle 2| of intermediate gear can always be adjusted in such a way that the two straps l4 and I6 forming an angle between them can always be tightened with the exactness required and this independently of the differences of elongation occurring on use.
The intermediate gear might have two step pulleys placed on either side of the frame wall and connected by an axle traversing the opening 25. The fixing of the discs is then, of course, adapted accordingly.
What I claim is:
1. In a machine, a frame wall having an opening, an intermediate gear, two straps forming an angle and running over said intermediate ear, said intermediate gear comprising, an axle, two discs disposed on each side of said frame Wall, means traversing said opening, destined to fix said discs to said frame wall, said opening having such a size that said means can be radially displaced in any direction necessary to adapt the position of said axle to the variable length of said straps.
2. In a machine according to claim 1, said means being a fixing rod coaxial to said axle,
3. In a machine according to claim 1 said intermediate gear comprising step pulleys arranged on the same side of said frame Wall.
ANDRE BECI-ILER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 298,291 Cromie May 6, 1884 776,170 Burkhardt Nov. 29, 1904 1,978,526 Eppler, Jr. Oct. 30, 1934
US588627A 1944-04-24 1945-04-16 Intermediate gear fixed to a machine frame Expired - Lifetime US2442112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2442112X 1944-04-24

Publications (1)

Publication Number Publication Date
US2442112A true US2442112A (en) 1948-05-25

Family

ID=4569275

Family Applications (1)

Application Number Title Priority Date Filing Date
US588627A Expired - Lifetime US2442112A (en) 1944-04-24 1945-04-16 Intermediate gear fixed to a machine frame

Country Status (1)

Country Link
US (1) US2442112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230074292A1 (en) * 2020-03-25 2023-03-09 Fanuc Corporation Power transmission mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US298291A (en) * 1884-05-06 John h
US776170A (en) * 1903-05-29 1904-11-29 Franklin P Burkhardt Belt-tightener.
US1978526A (en) * 1932-02-06 1934-10-30 United Shoe Machinery Corp Driving mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US298291A (en) * 1884-05-06 John h
US776170A (en) * 1903-05-29 1904-11-29 Franklin P Burkhardt Belt-tightener.
US1978526A (en) * 1932-02-06 1934-10-30 United Shoe Machinery Corp Driving mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230074292A1 (en) * 2020-03-25 2023-03-09 Fanuc Corporation Power transmission mechanism

Similar Documents

Publication Publication Date Title
US2442112A (en) Intermediate gear fixed to a machine frame
US1739053A (en) Worm-drive belt-tightening device
GB520494A (en) Improvements in or relating to film developing apparatus
GB825106A (en) Multiple spindle drive for spinning or twisting machines
ES321007A1 (en) A mechanism of adjustable transmission, without steps, for example, a belt transmission, especially, for agricultural machines. (Machine-translation by Google Translate, not legally binding)
CH431374A (en) Tensioning device for at least one drive belt which drives a conveyor belt
GB1236254A (en) Mechanism for rotating twist spindles
GB912235A (en) Vibrator system
GB939589A (en) Improvements in electric motor driven pulleys
ES255305A1 (en) Device for stopping the drive of spindles of spinning and doubling frames
GB601826A (en) Improvements in driving mechanism for endless flexible bands
GB981086A (en) Improvements in or relating to disengageable belt drives
GB913126A (en) Automatic tensioning means for endless conveyers, in particular for conveyer belts
GB1129054A (en) Spinning or twisting apparatus
ES8204518A1 (en) Selective belt drive, particularly for multiple-function wood-working machine.
GB535420A (en) Improvements in or relating to belt drives
GB886507A (en) Device for aligning tubular articles
SU928686A1 (en) Feeder for radio components having axial leads
ES259436A1 (en) Improvements introduced in the operating machines for use of reinforcing and reinforcing machines (Machine-translation by Google Translate, not legally binding)
ES259614A3 (en) Wire accompanying apparatus, applicable to winding machines (Machine-translation by Google Translate, not legally binding)
CA503343A (en) High-speed low-vibration drive pulley for flat belts
GB694169A (en) An improved driving device for the spindles of spinning machines, doubling machines and the like
ES224918A1 (en) Improvements in the construction of drums of driving for conveyor belts, cables or analogue elements of transport (Machine-translation by Google Translate, not legally binding)
FR2288221A1 (en) Balance device for IC engine with in-line cylinders - has corrugated belt contrarotating two counterweight pulleys from crankshaft
ES92676U (en) Box form support for spinning, twisting and similar machines (Machine-translation by Google Translate, not legally binding)