CA1075045A - Retainer or key - Google Patents
Retainer or keyInfo
- Publication number
- CA1075045A CA1075045A CA306,648A CA306648A CA1075045A CA 1075045 A CA1075045 A CA 1075045A CA 306648 A CA306648 A CA 306648A CA 1075045 A CA1075045 A CA 1075045A
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- elements
- reduced diameter
- diameter portion
- assembled
- 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
Links
- 239000007787 solid Substances 0.000 claims abstract description 5
- 230000004323 axial length Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Pivots And Pivotal Connections (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
TITLE OF THE INVENTION
RETAINER OR KEY
ABSTRACT OF THE DISCLOSURE
A retainer or key adapted for mounting in a groove in a shaft and consisting of a pair of U-shaped members adapted to be assembled in reduced diameter portion of the shaft from opposite sides and interfitting when assembled to form a complete and solid washer-like element in the reduced diameter portion of the shaft and projecting radially outwardly therefrom. A pin extends through the assembled elements and the shaft and holes the key or retainer in place.
RETAINER OR KEY
ABSTRACT OF THE DISCLOSURE
A retainer or key adapted for mounting in a groove in a shaft and consisting of a pair of U-shaped members adapted to be assembled in reduced diameter portion of the shaft from opposite sides and interfitting when assembled to form a complete and solid washer-like element in the reduced diameter portion of the shaft and projecting radially outwardly therefrom. A pin extends through the assembled elements and the shaft and holes the key or retainer in place.
Description
~075045 BACKGROUND OF THE INVENTION:
The present invention relates to keys or retainers for retaining a pivot shaft in assembled relation with related work members, especially under conditions of heavy load.
A number of working devices are of such a nature that pivot pins or shafts are required therein and which must have the capability of being disassembled from the mechanism and reassembled therewith in a convenient manner and which must also be firmly locked in place against accidental loss from the equipment.
Heavy duty chains, such as chains to be found on mining machines, are an example of situations where the pivot pins interconnecting links of the chain can be subjected to considerable abuse and must, occasionally, be replaced with a minimum of down time of the respective machine.
An object of the present invention is the provision of an ; improved key or retainer or clip device for holding a shaft of the nature referred to in assembled relation with other machine ... .
: .
parts.
BRIEF SUMMARY OF THE INVENTION:
According to the present invention, a key or retainer or clip is provided consisting of a pair of U-shaped parts adapted for being assembled to form a solid washer-like member with the parts being provided with grooves which register when the parts are assembled to form a diametral hole.
The members or elements are adapted for being assembled about a reduced diameter portion of a shaft, and when assembled, have an axial length substantially equal to that of the reduced . --: -~ 107504S
diameter portion of the shaft, while fitting about the reduced diameter portion of the shaft and, at the same time, protruding . axially outwardly beyond the radial limits of the shaft The reduced diameter portion of the shaft has a diametral hole and a pin extends through the diametral hole and through the grooves above referred to and locks the assembly in position on the shaft.
The exact nature of the present invention will become more clearly apparent upon reference to the following detailed speci- -fication taken in connection with the accompanying drawings in which:
Figure 1 is a view of a portion of the length of a shaft ~. .
~ having a retainer or keeper according to the present invention l',?`
" mounted thereon.
, .
;~ Figure 2 is an end view of Figure 1 looking in from the right side thereof.
-~ Figure 3 is a perspective view showing one of the members or elements making up the keeper or retainer according to the present .~
inventionO
~;- 20 DETAILED DESCRIPTION OF THE INVENTION:
Referring to the drawings somewhat more in detail, a shaft 10 illustrated therein has associated therewith one or more ' machine parts 12 with which the shaft is to be maintained in - assembled relation. The shaft has a reduced diameter portion 14 and a key or keeper or retainer 16 according to the present invention is mounted therein.
:' ~075()45 Key 16 will be seen to fit about the reduced diameter portion 14 of the shaft while protruding radially therefrom. It will also be noted that the key or retainer or keeper 16 presents a substan-tially solid mass of metal filling the space created in the shaft by the reduced diameter portion thereof and protruding radially therefrom so that an extremely strong keeper arrangement is provided which will prevent the shaft from becoming disassembled : from the machine part or parts 120 The keeper l6 is formed of two identical parts 18 and 20 -which are assembled in face to face relation in the groove formed in shaft 10.
. Each of members 18 and 20 is configured as shown in Figure 3, ~. wherein it will be seen that each of the members is in the form ,'.~.
; of a substantially circular member 20 having a slot 22 formed therein from one side terminating in a concentric bottom region ` 24 which has the same radius of curvature as reduced diameter ` portion 14 and which is concentric with the body of the respective members 18, 20.
. The sides of slot 22 are parallel and extend from opposite -ends of a diameter of curved bottom portion 24. Of the same .- width as slot 22, and extending in the opposite direction from ' curved bottom region 24, is upstanding portion 26, of a size : exactly to fit in slot 22.
: The thickness of the legs of the member which define the slot . . .
. 22 are equal to the thickness of upstanding portion 26 so that, when two of the members are assembled in face to face relation, a .:
solid washer-like configuration as is shown in Figures 1 and 2 . ~
. results.
"' ' :~ -4-. ~
''';' !, ' .
The legs of the member are formed with grooves 28 with the grooves in one member registering with those in the other member when the members are assembled. The grooves define a hole for receiving a lock pin 30 which also extends through a central hole -formed in reduced diameter portion 14 of the shaftO
Pin 30 locks the entire assembly together and the keeper according to the present invention can be disassembled only by ~. -s~ removing the pin therefrom.
The keeper is not only easy and inexpensive to m~nufacture but is also relatively easy to assemble on a shaft and, when ~! assembled on the shaft, provides extremely strong retention of the shaft with the parts with which it is assembledO
Modifications may be made within the scope of the appended ~, claims.
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The present invention relates to keys or retainers for retaining a pivot shaft in assembled relation with related work members, especially under conditions of heavy load.
A number of working devices are of such a nature that pivot pins or shafts are required therein and which must have the capability of being disassembled from the mechanism and reassembled therewith in a convenient manner and which must also be firmly locked in place against accidental loss from the equipment.
Heavy duty chains, such as chains to be found on mining machines, are an example of situations where the pivot pins interconnecting links of the chain can be subjected to considerable abuse and must, occasionally, be replaced with a minimum of down time of the respective machine.
An object of the present invention is the provision of an ; improved key or retainer or clip device for holding a shaft of the nature referred to in assembled relation with other machine ... .
: .
parts.
BRIEF SUMMARY OF THE INVENTION:
According to the present invention, a key or retainer or clip is provided consisting of a pair of U-shaped parts adapted for being assembled to form a solid washer-like member with the parts being provided with grooves which register when the parts are assembled to form a diametral hole.
The members or elements are adapted for being assembled about a reduced diameter portion of a shaft, and when assembled, have an axial length substantially equal to that of the reduced . --: -~ 107504S
diameter portion of the shaft, while fitting about the reduced diameter portion of the shaft and, at the same time, protruding . axially outwardly beyond the radial limits of the shaft The reduced diameter portion of the shaft has a diametral hole and a pin extends through the diametral hole and through the grooves above referred to and locks the assembly in position on the shaft.
The exact nature of the present invention will become more clearly apparent upon reference to the following detailed speci- -fication taken in connection with the accompanying drawings in which:
Figure 1 is a view of a portion of the length of a shaft ~. .
~ having a retainer or keeper according to the present invention l',?`
" mounted thereon.
, .
;~ Figure 2 is an end view of Figure 1 looking in from the right side thereof.
-~ Figure 3 is a perspective view showing one of the members or elements making up the keeper or retainer according to the present .~
inventionO
~;- 20 DETAILED DESCRIPTION OF THE INVENTION:
Referring to the drawings somewhat more in detail, a shaft 10 illustrated therein has associated therewith one or more ' machine parts 12 with which the shaft is to be maintained in - assembled relation. The shaft has a reduced diameter portion 14 and a key or keeper or retainer 16 according to the present invention is mounted therein.
:' ~075()45 Key 16 will be seen to fit about the reduced diameter portion 14 of the shaft while protruding radially therefrom. It will also be noted that the key or retainer or keeper 16 presents a substan-tially solid mass of metal filling the space created in the shaft by the reduced diameter portion thereof and protruding radially therefrom so that an extremely strong keeper arrangement is provided which will prevent the shaft from becoming disassembled : from the machine part or parts 120 The keeper l6 is formed of two identical parts 18 and 20 -which are assembled in face to face relation in the groove formed in shaft 10.
. Each of members 18 and 20 is configured as shown in Figure 3, ~. wherein it will be seen that each of the members is in the form ,'.~.
; of a substantially circular member 20 having a slot 22 formed therein from one side terminating in a concentric bottom region ` 24 which has the same radius of curvature as reduced diameter ` portion 14 and which is concentric with the body of the respective members 18, 20.
. The sides of slot 22 are parallel and extend from opposite -ends of a diameter of curved bottom portion 24. Of the same .- width as slot 22, and extending in the opposite direction from ' curved bottom region 24, is upstanding portion 26, of a size : exactly to fit in slot 22.
: The thickness of the legs of the member which define the slot . . .
. 22 are equal to the thickness of upstanding portion 26 so that, when two of the members are assembled in face to face relation, a .:
solid washer-like configuration as is shown in Figures 1 and 2 . ~
. results.
"' ' :~ -4-. ~
''';' !, ' .
The legs of the member are formed with grooves 28 with the grooves in one member registering with those in the other member when the members are assembled. The grooves define a hole for receiving a lock pin 30 which also extends through a central hole -formed in reduced diameter portion 14 of the shaftO
Pin 30 locks the entire assembly together and the keeper according to the present invention can be disassembled only by ~. -s~ removing the pin therefrom.
The keeper is not only easy and inexpensive to m~nufacture but is also relatively easy to assemble on a shaft and, when ~! assembled on the shaft, provides extremely strong retention of the shaft with the parts with which it is assembledO
Modifications may be made within the scope of the appended ~, claims.
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Claims (4)
1. Keeper elements adapted for mounting on a grooved shaft having a reduced diameter axial portion in the groove and comprising; U-shaped elements adapted to be received open end foremost over said axial portion in overlapping relation, the lateral dimensions of said elements being greater than the diameter of said shaft, said elements having an assembled axial length on the shaft substantially equal to the length of said axial portion, radial groove means in said elements that register when the elements are assembled so that a pin fitted through the reduced diameter portion of the shaft and the radial groove hold said elements in assembled relation on said reduced diameter portion of said shaft.
2. Keeper elements according to Claim 1 in which each element has a slot therein defining the inside of the U-shape thereof with the sides of said slot being parallel and spaced a distance substantially equal to the diameter of said reduced diameter portion of said shaft and with the bottom of the slot formed to the radius of said reduced diameter portion of said shaft.
3. Keeper elements according to Claim 2 in which each element has a raised portion protruding from one side and receivable in the open end of the slot of the other element so the elements in assembled relation form a solid washer-like member having a central hole the size of said reduced diameter portion of said shaft and an outer diameter greater than that of said shaft.
4. Keeper elements according to Claim 3 in which said reduced diameter portion of said shaft has a hole therethrough, said pin extending through said hole and having both end portions engaging groove means in said elements.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82206277A | 1977-08-05 | 1977-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1075045A true CA1075045A (en) | 1980-04-08 |
Family
ID=25235018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA306,648A Expired CA1075045A (en) | 1977-08-05 | 1978-06-30 | Retainer or key |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU3784478A (en) |
| CA (1) | CA1075045A (en) |
| FR (1) | FR2399567A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1763429A (en) * | 1925-09-18 | 1930-06-10 | Standard Coupler Co | Coupler key |
| US2368544A (en) * | 1941-05-07 | 1945-01-30 | Patrick J Hogan | Retaining device |
-
1978
- 1978-06-30 CA CA306,648A patent/CA1075045A/en not_active Expired
- 1978-07-07 AU AU37844/78A patent/AU3784478A/en active Pending
- 1978-07-28 FR FR7822413A patent/FR2399567A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2399567A1 (en) | 1979-03-02 |
| AU3784478A (en) | 1980-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |