GB2125491A - A pulley assembly - Google Patents
A pulley assembly Download PDFInfo
- Publication number
- GB2125491A GB2125491A GB08321561A GB8321561A GB2125491A GB 2125491 A GB2125491 A GB 2125491A GB 08321561 A GB08321561 A GB 08321561A GB 8321561 A GB8321561 A GB 8321561A GB 2125491 A GB2125491 A GB 2125491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support member
- carrier body
- combination
- shank
- bore
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 5
- 238000002788 crimping Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/44—Sheet-metal pulleys
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
- F16B17/006—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of rods or tubes to sheets or plates
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
- F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets
-
- 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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/63—Gears with belts and pulleys
Abstract
A pulley assembly comprises a support member 10, a carrier body 13 having an inner race track 16 secured to the support member 10 and a pulley body (not shown) mounted on and for rotation relative to the carrier body. The support member 10 and carrier body 13 are both formed of sheet metal. One of them has at least one bore 15 and the other has at least one integral element 12. The or each element 12 comprises a shank 11 having at its free end a head 17. The shank 11 of the or each element 12 projects through the or one of the bores 15. The support member 10 is secured to the carrier body 13 by rivetting or crimping. <IMAGE>
Description
SPECIFICATION
A pulley assembly
This invention is concerned with a pulley assembly comprising a support member, a carrier body secured to the support member and a pulley body mounted on and for rotation relative to the carrier body.
Such an assembly can be used as an adjustable tension pulley assembly, in which, for example, the support member is connected to a support by two screws engaging in one or more siots in the support. The position of the assembly on the support is adjustable to adjust the tension of a pulley belt running over the pulley body. The pulley body is mounted by means of a bearing, and the carrier body may have an inner race track formed directly on its surface, the carrier body thus forming an inner race ring of a rolling bearing.
In published Specification GB 2066926 A, a pulley assembly is described in which the support member has a flat plate portion and the carrier body is a tubular body having an inwardly flanged end abutting the flat plate portion. A securing element has a head abutting the other side of the flat plate portion and a shank extending through a bore in the plate and into the flanged end of the carrier body.
The free end of the shank is flanged out-wardly to engage the flange of the carrier body and so secure the support member and carrier body together.
This type of fastening is usually quite durable but can prove expensive with large diameter carrier bodies requiring large diameter securing elements.
The subject of the invention is a different manner of securing the support member and carrier body together which can be adequately strong and economic, even with large assemblies.
In one aspect the invention provides, in or for a pulley assembly comprising a support member, a carrier body secured to the support member, and a pulley body mounted on and for rotation relative to the carrier body, the combination of the support member and carrier body in which they are both formed of sheet metal, one of them has at least one bore, and the other has at least one integral element, the or each element comprising a shank having at its free end a head, the shank of the or each element projecting through the or one of the bores.
The element of the support member in the carrier body is formed directly from the material of the member or the body.
The support member may comprise a sheet metal plate and the carrier body may be a cup-shaped sheet metal part.
In another aspect, the invention provides a method of producing the combination according to the invention comprising forming from sheet metal one of the support member and carrier body with one or more integral projecting elements, forming from sheet metal the other of the support member and carrier body with one or more corresponding bores, bringing the two components together so that the or each element extends through the or one of the bores, and deforming the free end of the or each element to form a head and secure the two components together.
In one construction, the support member initially has one or more elements, the or each element comprising the shank and not the head. The closed end of the cup-shaped carrier body has one or more bores corresponding to the or each element of the support member and through which the or each element extends. An operation is then carried out to form the head on the shank of the or each element and thus secure the two components together. The number, size and position of the or each shank can be selected in accordance with the size of the cup-shaped carrier body, so that optimum fastening can be achieved.
The shank or shanks can be formed by an extrusion technique or formed by stamping in one operation during the production of the support member. The carrier body can be produced by deep-drawing and the bore or bores can be formed during that operation.
Thus the production and fastening together of the two components can be simpler and cheaper.
Of course, in another construction, the shank of the or each element can be formed from the closed end of the cup-shaped carrier body, and the or each corresponding bore can be provided in the support member.
The integral element can be tubular. Thus, the shank of the element can be made as large as is required for the cup-shaped carrier body and the free end of the shank bent or crimped over so that it reaches into the corner regions of the carrier-body.
The bore, in the support member or carrier body, may have a non-circular cross-section and the or each element can be adapted to fit that cross-section and prevent relative rotation between the two components.
The bore may have one or more grooves engaged by the or each element. With one tubular element, the groove or grooves are engaged by the element by the bending or crimping over operation.
Embodiments of the invention will now be described by way of example, reference being made to the accompanying drawings, of which:
Figure 1 is part of a longitudinal section through a support member secured to a carrier body according to one embodiment of the invention;
Figure 2 is part of a longitudinal section through a support member secured to a carrier body according to another embodiment of the invention; and
Figure 3 is a section on Ill-Ill of the combination shown in Fig. 2.
Fig. 1 shows a flat plate portion of a support member 10 produced from sheet metal. In the production of the support member 10, the projecting shanks 11 of integral elements 1 2 are produced by an extrusion technique. A cup-shaped carrier-body 1 3 is produced from sheet metal by deep-drawing and has a closed-end 1 4 with bores 15, and an inner race track 1 6 for a ball-bearing is provided on its cylindrical part.In the assembly of the two components 10 and 13, they are brought together so that the closedend 1 4 of the carrier body 1 3 abuts the support member 10 and the shanks 11 extended through the bores 1 5. An operation such as rivetting is then carried out to form heads 1 7 on the free ends of the shanks 11 and so securely fasten the two components together.
Figs. 2 and 3 show a flat plate portion of a support member 20 produced from sheet metal. The support member 20 is initially provided with a tubular shank 21 of an integral projecting element 22 by, for example punching. A cup-shaped carrier-body 23, produced from sheet metal by deep-drawing, has a closed end 24 with a bore 25. The bore 25 is non-circular, that is in this example, it is a circle with four axially extending grooves 26.
The cylindrical part of the carrier-body 23 is also provided with an inner race track 27 for a ball bearing. In the assembly of the two components 20 and 23, they are brought together so that the closed end 24 of the carrier-body 23 abuts the support member 20 and the tubular shank 21 extends through the bore 25. An operation to crimp or bend over the free end of the tubular shank 21 is then carried out to form a head 28 and so securely fasten the two components together. During this crimping or bending operation, material 29 of the tubular shank 21 is also forced into the grooves 26 so that, by shape engagement, relative rotation between the two components is prevented.
Claims (6)
1. In or for a pulley assembly comprising a support member, a carrier body secured to the support member, and a pulley body mounted on and for rotation relative to the carrier body, the combination of the support member and carrier body in which they are both formed of sheet metal, one of them has at least one bore, and the other has at least one integral element, the or each element comprising a shank having at its free end a head, the shank of the or each element projecting through the or one of the bores.
2. The combination as claimed in claim 1, wherein the integral element is tubular.
3. The combination as claimed in claim 1 or 2, wherein the bore has a non-circular cross-section.
4. The combination as claimed in claim 3, wherein the bore has one or more grooves engaged by the or each element.
5. In or for a pulley assembly, the combination substantially as herein described with reference to and as shown in Fig. 1 or with reference to and as shown in Figs. 2 and 3 of the accompanying drawings.
6. A method of producing the combination as claimed in any preceding claim, comprising forming from sheet metal one of the support member and carrier body with one ore more integral projecting elements, forming from sheet metal the other of the support member and carrier body with one or more corresponding bores, bringing the two components together so that the or each element extends through the or one of the bores, and deforming the free end of the or each element to form a head and secure the two components together.
7 A method of producicng the combination of a support member and carrier body substantially as herein described with reference to and as shown in Fig. 1 or with reference to and as shown in Figs. 2 and 3 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8222965 | 1982-08-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8321561D0 GB8321561D0 (en) | 1983-09-14 |
| GB2125491A true GB2125491A (en) | 1984-03-07 |
| GB2125491B GB2125491B (en) | 1986-01-15 |
Family
ID=6742745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08321561A Expired GB2125491B (en) | 1982-08-14 | 1983-08-10 | A pulley assembly |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5962709A (en) |
| FR (1) | FR2531642B1 (en) |
| GB (1) | GB2125491B (en) |
| IT (2) | IT8322569V0 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685980A3 (en) * | 1994-06-01 | 1996-09-18 | Nokia Technology Gmbh | Loudspeaker. |
| US20130219687A1 (en) * | 2010-03-23 | 2013-08-29 | Chin-Han Wang | Fastening method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19739816B4 (en) * | 1997-09-11 | 2005-07-28 | Skf Gmbh | Supporting body for clamping devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB487320A (en) * | 1936-11-17 | 1938-06-17 | Max Bernhardt | Improvements in or relating to cartridge cases for ordnance, trench mortars and other guns |
| GB529886A (en) * | 1939-06-10 | 1940-11-29 | Howard Seymour Cooke | Improvements relating to racks or supports for smoker's pipes, tools and other like articles |
| GB595145A (en) * | 1945-01-31 | 1947-11-27 | Great Lakes Steel Corp | Improvements in or relating to structural beams |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB953768A (en) * | 1961-02-28 | 1964-04-02 | Constantine Emanuel Nicolaides | Improved ball bearing and method of making same |
| US3722968A (en) * | 1967-06-29 | 1973-03-27 | Nat Bearings Co | Wheel-bearing assembly |
| AT301093B (en) * | 1971-02-26 | 1972-08-25 | Blum Gmbh Julius | Roller for pull-out rails of drawers or the like. |
| US4006945A (en) * | 1975-03-06 | 1977-02-08 | Buildex Incorporated | Roller bearing assembly |
-
1983
- 1983-08-02 IT IT8322569U patent/IT8322569V0/en unknown
- 1983-08-02 IT IT22392/83A patent/IT1194362B/en active
- 1983-08-10 GB GB08321561A patent/GB2125491B/en not_active Expired
- 1983-08-12 FR FR8313302A patent/FR2531642B1/en not_active Expired
- 1983-08-13 JP JP58147334A patent/JPS5962709A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB487320A (en) * | 1936-11-17 | 1938-06-17 | Max Bernhardt | Improvements in or relating to cartridge cases for ordnance, trench mortars and other guns |
| GB529886A (en) * | 1939-06-10 | 1940-11-29 | Howard Seymour Cooke | Improvements relating to racks or supports for smoker's pipes, tools and other like articles |
| GB595145A (en) * | 1945-01-31 | 1947-11-27 | Great Lakes Steel Corp | Improvements in or relating to structural beams |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685980A3 (en) * | 1994-06-01 | 1996-09-18 | Nokia Technology Gmbh | Loudspeaker. |
| US20130219687A1 (en) * | 2010-03-23 | 2013-08-29 | Chin-Han Wang | Fastening method |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1194362B (en) | 1988-09-22 |
| GB2125491B (en) | 1986-01-15 |
| FR2531642B1 (en) | 1986-12-12 |
| JPS5962709A (en) | 1984-04-10 |
| FR2531642A1 (en) | 1984-02-17 |
| IT8322392A1 (en) | 1985-02-02 |
| IT8322569V0 (en) | 1983-08-02 |
| GB8321561D0 (en) | 1983-09-14 |
| IT8322392A0 (en) | 1983-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920810 |