CA1107224A - Line shaft live roller conveyor spool locating device - Google Patents
Line shaft live roller conveyor spool locating deviceInfo
- Publication number
- CA1107224A CA1107224A CA341,202A CA341202A CA1107224A CA 1107224 A CA1107224 A CA 1107224A CA 341202 A CA341202 A CA 341202A CA 1107224 A CA1107224 A CA 1107224A
- Authority
- CA
- Canada
- Prior art keywords
- drive shaft
- spool
- spools
- locating device
- rollers
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/02—Roller-ways having driven rollers
- B65G13/06—Roller driving means
- B65G13/07—Roller driving means having endless driving elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
- B65G47/261—Accumulating articles
- B65G47/263—Accumulating articles the conveyor drive is taken from a longitudinally extending shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This invention relates to a device for axially locating a driving spool on a drive shaft of a line shaft live roller conveyor. A conveyor pass line to carry boxes or other articles is formed by the upper surface of a number of rollers which are driven from a corresponding number of spools on a single drive shaft extending transversely beneath them. An elastomeric drive belt extends between each driving spool on the drive shaft and a groove in a respective one of the rollers. The rollers are independently driven to provide for conveyor "accumulation" by having a relatively loose frictional fit between the spools and the drive shaft. The fact that each drive belt must turn through an angle of approximately 90° between the spool and the roller results in a tendency for the spools to shift axially along the drive shaft with the intermittent application of load. This causes the drive belts to stretch and eventually lose their power and sometimes jump off of the spools.
The present invention provides a locating device with a C-shaped body with a mouth which may be transversely snapped over the drive shaft. The locating device is formed of a resilient material and grips the drive shaft to securely retain it in the desired axial position. A locating device is normally positioned adjacent each spool on the downstream side to prevent axial shifting of the spool when the load is removed. The locating device has a smooth side wall to minimize friction with the spool and may be manually relocated along the drive shaft to intention-ally shift the spool to maintain a desired tension in the elasto-meric drive belt to compensate for stretching. The locating devices may be quickly and easily installed and relocated without removing the spools as was the case with the previous cylindrical spacers, nor do they transmit any forces between adjacent spools.
This invention relates to a device for axially locating a driving spool on a drive shaft of a line shaft live roller conveyor. A conveyor pass line to carry boxes or other articles is formed by the upper surface of a number of rollers which are driven from a corresponding number of spools on a single drive shaft extending transversely beneath them. An elastomeric drive belt extends between each driving spool on the drive shaft and a groove in a respective one of the rollers. The rollers are independently driven to provide for conveyor "accumulation" by having a relatively loose frictional fit between the spools and the drive shaft. The fact that each drive belt must turn through an angle of approximately 90° between the spool and the roller results in a tendency for the spools to shift axially along the drive shaft with the intermittent application of load. This causes the drive belts to stretch and eventually lose their power and sometimes jump off of the spools.
The present invention provides a locating device with a C-shaped body with a mouth which may be transversely snapped over the drive shaft. The locating device is formed of a resilient material and grips the drive shaft to securely retain it in the desired axial position. A locating device is normally positioned adjacent each spool on the downstream side to prevent axial shifting of the spool when the load is removed. The locating device has a smooth side wall to minimize friction with the spool and may be manually relocated along the drive shaft to intention-ally shift the spool to maintain a desired tension in the elasto-meric drive belt to compensate for stretching. The locating devices may be quickly and easily installed and relocated without removing the spools as was the case with the previous cylindrical spacers, nor do they transmit any forces between adjacent spools.
Description
`~`` 11~7~24 1 This invention relates to line shaf-t live roller conveyors and more particularly to a locating device for axially locating the drive spools on the drive shaft thereof.
Line shaft live roller conveyors have a number of rollers arranged to carry boxes or other individual articles along a pass line. Each roller is individually driven by an elastomeric drive belt extending around a spool on a common line or drive shaft located beneath the rollers. In order to provide for accumulation of the articles on the conveyor, it is necessary that one or more of the rollers be able to stop while the others keep rotating. This independent roller operation is provided for by having the individual driving spools which are spaced along the drive shaft only lightly frictionally engaged by the drive shaft so that they may slip if necessary when the roller driven by that spool is stopped by an article sitting on it.
As is well known in the art, this type of line shaft i live roller conveyor produces a phenGmenon whereby the spools move axially downstream along the drive shaft when no load is applied to the driven rollers and then shift upstream to a position beneath the driven rollers when load is applied and this phenomenon is known as "axial shift". While this phenomenon is not completely understood, as discussed in Canadian Patent 930,686 to Fleischauer et al. which issued July 24, 1973, it has been thought to be as a result of the tensioning imbalance on the drive belt and the fact that the spools are able to cock slightly due to the play between them and the drive shaft. In Canadian Patent 930,686, this phenomenon of "axiàl shift" was presented as an advantage in that it has a self-tensioning effect on the drive belt as the load is applied. However, in practice, it has been found to be unacceptable in that it ~' ~ , ' .
l~O~Z~
1 ~ventually results in the elastomeric belts being stretched to the point where they lose their power and have to be replaced.
This problem is aggrevated by the fact that the spools shift closer to their respective roller when the load is applied, rather than further away. This has lead to the use of cylindri-cal plastic spacers located on the drive shaft between the spools to prevent "axial shift".
However, it has been found that these spacers have several problems or disadvantages. The length of the spacers must correspond to the desired distance between the rollers and if it is necessary to change the roller spacing, the spacers and spools must all be taken off of the drive shaft and the spacers replaced. Similarly, this~;must also be done if there is a failure of one of the spacers requiring that it be replaced.
More importantly, it has been found that the independent operation of the individual rollers may be lost, at least to some extent, by forces being transmitted through the spacers between adjacent spools. When conveyor accumulation occurs and a box is stopped on a roller, the phenomenon of "axiàl shift" mentioned above tends to move the spool driving that roller in a downstream direction as it comes to a stop. However, when cylindrical spacers are located on the drive shaft between each of the spools, this jams all of the spacers and spools in that section of the conveyor together which tends to prevent this and other adjacent rollers upon which the box may be sitting from stopping. In other words, the line pressure on the box is increased because the force being exerted on the box is greater than that originating only from the rollers upon which it is sitting. This detrimentally effects the operation of the means used to stop the box and therefore, the whole accumulation operation of the conveyor.
1 Accordingly, it is an object of the present invention to at least partially overcome these disadvantages by providing a locating device which may be manually snapped onto the drive shaft downstream of a spool to axially locate that spool in a desired position along the drive shaft without making contact with any other spool, and which may be easily relocated to shift the axial position of the spool on the drive shaft.
To this end, in one of its aspects, the invention provides a device for axially locating a spool on a cylindrical 10 drive shaft in a line shaft live roller conveyor having a plurality of said rollers which form a pass line thereon to carry objects along the conveyor, drive shaft extending generally transversely to said rollers, said drive shaft carrying a plur-ality of said spools, each spool being rotated or not rotated by ` said shaft depending upon the degree of frictional engagement therebetween, a plurality of endless elastomeric drive belts, : each having a round cross section and extending around one of said spools and through a circumferential groove around a respective one of said rollers, said locating device having a C-shaped body which forms a mouth, the body being formed of resilient material and extending around more than 180 to provide the mouth with a height significantly less than the out-side diameter of said drive shaft and being of a size whereby it may be manually snapped transversely onto said drive shaft to a position where it grips the drive shaft with sufficient force to prevent it being axially displaced or accidently dislodged from the drive shaft by the normal operating force of a spool, although allowing it to be manually relocated along the drive shaft, said locating device normally being positioned on the drive shaft adjacent said spool to locate the spool against 1 downstream shifting along the drive shaft.
Further objects and advantages of the invention will appear from the following description taken together with the accompanying drawings in which:
Figure 1 is a perspective view of a section of line shaft live roller conveyor ulitizing locating devices according to a preferred embodiment of the invention;
Figure 2 is an enlarged elevation view showing one of the locating devices seen in Figure 1 locating a spool on the drive shaft; and Figure 3 is a perspective view of the locating device seen in Figures 1 and 2.
Reference is first made to Figure 1 which shows a portion of a line shaft live roller conveyor 10 having a number of rollers 12 supported by two side frame members 14, 16. The upper surfaces of the rollers 12 form a conveyor pass line along which boxes or other articles are transported. A line or drive shaft 18, driven by a power source~not shown) is located beneath the rollers 12 and extends transversely to them. The ~ drive shaft 18 carries a number of spools 22, and an elastomeric drive belt 24 having a uniform round cross section extends from each spool 22 through a groove 26 in a respective one of the rollers 12.
It is necessary for the succ~ssful operation of this -type of conveyor that provision be made for the accumulation of boxes on it, and in order to facilitate accumulation, it is desirahle that only the particular rollers under a box stop rotating when that box is stopped on the conveyor by other means (not shown). It is well known in the art to provide for this by having a relatively loose fit between the spools 22 and the 37~
line shaft or drive shaft 18~ Thus, when a particular roller 12 is stopped rotating by a box being s-topped on it, the spool 22 from which it is driven slips on the drive shaft 18 to provide this individual or independent roller drive function. However, as may be seen, the location and alignment of the drive shaft 18 requires that the rotational axes of the spools 22 be at an angle of substantially 90 to that of the rollers 12. This factor, combined with the necessarily loose frictional fit of the spools 22 on the drive shaft 18, results in the undesirable phenomenon mentioned above of axial shifting of the spools 22 on the line shaft 18. In a no-load or idling state, each rotating spool 22 tends to slip on the drive shaft to position itself slightly downstream from the roller 12 it is driving. When a load is applied to the roller, the driving spool would be drawn upstream to a position more directly beneath the roller.
According to the present invention, this phenomenon of axial shifting is prevented by locating devices 28 which are snapped onto the drive shaft adjacent the downstream side 30 of each spool 22.
In this embodiment, the locating device has a body 32 with a uniform C-shaped cross section and mouth 34. The shape of the inner surface 36 is slightly off~cylindrical when the locating device is in the unstressed state, whereby when it is stressed to resiliently engage the cylindrical drive shaft 18, it assumes a cylindrical shape to grip the outer surface of the drive shaft 18. While the inner surface 36 is smooth in the embodiment shown, it may be textured or otherwise designed to improve its grip on the outer surface of the drive shaft 18 during use. The C-shaped body 32 extends around about 240 to provide the mouth 34 with a height in the unstressed state which 1 is significantly less than the diameter of the drive shaft 18.
~s this dimension, combined with the resiliency of the material, determines the amount of force required to install and remove the locating device, it may be varied depending upon the application. However, it will be apparent that the C-shaped body must extend around more than 180 in order to be securely retained in the installed position. The body 32 also has a smooth outer surface 38 and smooth side walls 40, 42 to minimize frictional forces arising on contact with a spool. While this embodiment of the invention is formed of DELRIN (a Trade Mark of DuPont of Canada Limited for an acetate product containing an anti-static agent to avoid dirt accumulation), it may be formed of any suitable material providing the necessary strength and resiliency characteristics.
In use, the locating device 28 is snapped onto the drive shaft 18 by manually forcing it transversely against the drive shaft 18 until the mouth 34 of the C-shaped body 32 expands sufficiently to accommodate the drive shaft. When it snaps over the drive shaft, the resiliency of the material causes the inner surface 36 to securely grip the drive shaft in a fixed position. A locating device 28 is positioned adjacent each spool 22 on the downstream side to locate the spool against downstream axial shifting of the spool when the load is removed from the rollers. The width of the body, together with its resiliency is selected to ensure that the locating device grips the drive shaft 18 with sufficient strength to prevent it being axially displaced by the operating force of the spool, while at the same time allowing it to be manually relocated along the drive shaft.
Thus, while each locating device is in contact with a 1~9~2~
spool on its upstream side, there is no contact with any other spool which necessarily avoids the transmission of forces between adjacent spools by the locating devices. Furthermore, while the locating devices 28 are fixed to the drive shaft 18 and rotate with it and therefore will each have some effect on the adjacent spool 22 due to front frictional contact between them, this effect will be the same for each spool and therefore may be taken into consideration in the design of the accumulation means for the conveyor 10. If the conveyor is reversible, then it will be apparent that it is necessary to position locating devices 28 on both sides of each spool 22 to prevent axial shifting in either direction.
The locating devices 28 according to the invention may also advantageously be used with the new so-called "self centering" type of line shaft live roller conveyor drive. Even if the locating devices are not re~uired to prevent intermittent ! axial shifting of the spools 22, they may be used to slightly shift each spool 22 away from a position directly beneath the driven roller 12 to increase tension in the drive belt 24 to a desired value. It will be appreciated that the fact that each locating device 28 may be quickly and easily relocated on the drive shaft 18 by manually sliding it along makes this very useful to compensate for stretching of the elastomeric drive belts 24 which ultimately occurs after long periods of use.
Although the disclosure describes and illustrates a preferred embodiment of the invention, it is to be understood that the invention is not restricted to this particular embodi-ment. Many variations and modifications will now occur to those skilled in the art. In particular, it will be apparent that locating devices having other shapes and sizes and formed of . . ~
r~7~
1 other materials may be used For a definition of the invention, reference is made to the appended claims.
' 20 .~
Line shaft live roller conveyors have a number of rollers arranged to carry boxes or other individual articles along a pass line. Each roller is individually driven by an elastomeric drive belt extending around a spool on a common line or drive shaft located beneath the rollers. In order to provide for accumulation of the articles on the conveyor, it is necessary that one or more of the rollers be able to stop while the others keep rotating. This independent roller operation is provided for by having the individual driving spools which are spaced along the drive shaft only lightly frictionally engaged by the drive shaft so that they may slip if necessary when the roller driven by that spool is stopped by an article sitting on it.
As is well known in the art, this type of line shaft i live roller conveyor produces a phenGmenon whereby the spools move axially downstream along the drive shaft when no load is applied to the driven rollers and then shift upstream to a position beneath the driven rollers when load is applied and this phenomenon is known as "axial shift". While this phenomenon is not completely understood, as discussed in Canadian Patent 930,686 to Fleischauer et al. which issued July 24, 1973, it has been thought to be as a result of the tensioning imbalance on the drive belt and the fact that the spools are able to cock slightly due to the play between them and the drive shaft. In Canadian Patent 930,686, this phenomenon of "axiàl shift" was presented as an advantage in that it has a self-tensioning effect on the drive belt as the load is applied. However, in practice, it has been found to be unacceptable in that it ~' ~ , ' .
l~O~Z~
1 ~ventually results in the elastomeric belts being stretched to the point where they lose their power and have to be replaced.
This problem is aggrevated by the fact that the spools shift closer to their respective roller when the load is applied, rather than further away. This has lead to the use of cylindri-cal plastic spacers located on the drive shaft between the spools to prevent "axial shift".
However, it has been found that these spacers have several problems or disadvantages. The length of the spacers must correspond to the desired distance between the rollers and if it is necessary to change the roller spacing, the spacers and spools must all be taken off of the drive shaft and the spacers replaced. Similarly, this~;must also be done if there is a failure of one of the spacers requiring that it be replaced.
More importantly, it has been found that the independent operation of the individual rollers may be lost, at least to some extent, by forces being transmitted through the spacers between adjacent spools. When conveyor accumulation occurs and a box is stopped on a roller, the phenomenon of "axiàl shift" mentioned above tends to move the spool driving that roller in a downstream direction as it comes to a stop. However, when cylindrical spacers are located on the drive shaft between each of the spools, this jams all of the spacers and spools in that section of the conveyor together which tends to prevent this and other adjacent rollers upon which the box may be sitting from stopping. In other words, the line pressure on the box is increased because the force being exerted on the box is greater than that originating only from the rollers upon which it is sitting. This detrimentally effects the operation of the means used to stop the box and therefore, the whole accumulation operation of the conveyor.
1 Accordingly, it is an object of the present invention to at least partially overcome these disadvantages by providing a locating device which may be manually snapped onto the drive shaft downstream of a spool to axially locate that spool in a desired position along the drive shaft without making contact with any other spool, and which may be easily relocated to shift the axial position of the spool on the drive shaft.
To this end, in one of its aspects, the invention provides a device for axially locating a spool on a cylindrical 10 drive shaft in a line shaft live roller conveyor having a plurality of said rollers which form a pass line thereon to carry objects along the conveyor, drive shaft extending generally transversely to said rollers, said drive shaft carrying a plur-ality of said spools, each spool being rotated or not rotated by ` said shaft depending upon the degree of frictional engagement therebetween, a plurality of endless elastomeric drive belts, : each having a round cross section and extending around one of said spools and through a circumferential groove around a respective one of said rollers, said locating device having a C-shaped body which forms a mouth, the body being formed of resilient material and extending around more than 180 to provide the mouth with a height significantly less than the out-side diameter of said drive shaft and being of a size whereby it may be manually snapped transversely onto said drive shaft to a position where it grips the drive shaft with sufficient force to prevent it being axially displaced or accidently dislodged from the drive shaft by the normal operating force of a spool, although allowing it to be manually relocated along the drive shaft, said locating device normally being positioned on the drive shaft adjacent said spool to locate the spool against 1 downstream shifting along the drive shaft.
Further objects and advantages of the invention will appear from the following description taken together with the accompanying drawings in which:
Figure 1 is a perspective view of a section of line shaft live roller conveyor ulitizing locating devices according to a preferred embodiment of the invention;
Figure 2 is an enlarged elevation view showing one of the locating devices seen in Figure 1 locating a spool on the drive shaft; and Figure 3 is a perspective view of the locating device seen in Figures 1 and 2.
Reference is first made to Figure 1 which shows a portion of a line shaft live roller conveyor 10 having a number of rollers 12 supported by two side frame members 14, 16. The upper surfaces of the rollers 12 form a conveyor pass line along which boxes or other articles are transported. A line or drive shaft 18, driven by a power source~not shown) is located beneath the rollers 12 and extends transversely to them. The ~ drive shaft 18 carries a number of spools 22, and an elastomeric drive belt 24 having a uniform round cross section extends from each spool 22 through a groove 26 in a respective one of the rollers 12.
It is necessary for the succ~ssful operation of this -type of conveyor that provision be made for the accumulation of boxes on it, and in order to facilitate accumulation, it is desirahle that only the particular rollers under a box stop rotating when that box is stopped on the conveyor by other means (not shown). It is well known in the art to provide for this by having a relatively loose fit between the spools 22 and the 37~
line shaft or drive shaft 18~ Thus, when a particular roller 12 is stopped rotating by a box being s-topped on it, the spool 22 from which it is driven slips on the drive shaft 18 to provide this individual or independent roller drive function. However, as may be seen, the location and alignment of the drive shaft 18 requires that the rotational axes of the spools 22 be at an angle of substantially 90 to that of the rollers 12. This factor, combined with the necessarily loose frictional fit of the spools 22 on the drive shaft 18, results in the undesirable phenomenon mentioned above of axial shifting of the spools 22 on the line shaft 18. In a no-load or idling state, each rotating spool 22 tends to slip on the drive shaft to position itself slightly downstream from the roller 12 it is driving. When a load is applied to the roller, the driving spool would be drawn upstream to a position more directly beneath the roller.
According to the present invention, this phenomenon of axial shifting is prevented by locating devices 28 which are snapped onto the drive shaft adjacent the downstream side 30 of each spool 22.
In this embodiment, the locating device has a body 32 with a uniform C-shaped cross section and mouth 34. The shape of the inner surface 36 is slightly off~cylindrical when the locating device is in the unstressed state, whereby when it is stressed to resiliently engage the cylindrical drive shaft 18, it assumes a cylindrical shape to grip the outer surface of the drive shaft 18. While the inner surface 36 is smooth in the embodiment shown, it may be textured or otherwise designed to improve its grip on the outer surface of the drive shaft 18 during use. The C-shaped body 32 extends around about 240 to provide the mouth 34 with a height in the unstressed state which 1 is significantly less than the diameter of the drive shaft 18.
~s this dimension, combined with the resiliency of the material, determines the amount of force required to install and remove the locating device, it may be varied depending upon the application. However, it will be apparent that the C-shaped body must extend around more than 180 in order to be securely retained in the installed position. The body 32 also has a smooth outer surface 38 and smooth side walls 40, 42 to minimize frictional forces arising on contact with a spool. While this embodiment of the invention is formed of DELRIN (a Trade Mark of DuPont of Canada Limited for an acetate product containing an anti-static agent to avoid dirt accumulation), it may be formed of any suitable material providing the necessary strength and resiliency characteristics.
In use, the locating device 28 is snapped onto the drive shaft 18 by manually forcing it transversely against the drive shaft 18 until the mouth 34 of the C-shaped body 32 expands sufficiently to accommodate the drive shaft. When it snaps over the drive shaft, the resiliency of the material causes the inner surface 36 to securely grip the drive shaft in a fixed position. A locating device 28 is positioned adjacent each spool 22 on the downstream side to locate the spool against downstream axial shifting of the spool when the load is removed from the rollers. The width of the body, together with its resiliency is selected to ensure that the locating device grips the drive shaft 18 with sufficient strength to prevent it being axially displaced by the operating force of the spool, while at the same time allowing it to be manually relocated along the drive shaft.
Thus, while each locating device is in contact with a 1~9~2~
spool on its upstream side, there is no contact with any other spool which necessarily avoids the transmission of forces between adjacent spools by the locating devices. Furthermore, while the locating devices 28 are fixed to the drive shaft 18 and rotate with it and therefore will each have some effect on the adjacent spool 22 due to front frictional contact between them, this effect will be the same for each spool and therefore may be taken into consideration in the design of the accumulation means for the conveyor 10. If the conveyor is reversible, then it will be apparent that it is necessary to position locating devices 28 on both sides of each spool 22 to prevent axial shifting in either direction.
The locating devices 28 according to the invention may also advantageously be used with the new so-called "self centering" type of line shaft live roller conveyor drive. Even if the locating devices are not re~uired to prevent intermittent ! axial shifting of the spools 22, they may be used to slightly shift each spool 22 away from a position directly beneath the driven roller 12 to increase tension in the drive belt 24 to a desired value. It will be appreciated that the fact that each locating device 28 may be quickly and easily relocated on the drive shaft 18 by manually sliding it along makes this very useful to compensate for stretching of the elastomeric drive belts 24 which ultimately occurs after long periods of use.
Although the disclosure describes and illustrates a preferred embodiment of the invention, it is to be understood that the invention is not restricted to this particular embodi-ment. Many variations and modifications will now occur to those skilled in the art. In particular, it will be apparent that locating devices having other shapes and sizes and formed of . . ~
r~7~
1 other materials may be used For a definition of the invention, reference is made to the appended claims.
' 20 .~
Claims (4)
1. A device for axially locating a spool on a cylindrical drive shaft in a line shaft live roller conveyor having a plurality of said rollers which form a pass line thereon to carry objects along the conveyor, drive shaft extending generally transversely to said rollers, said drive shaft carrying a plura-lity of said spools, each spool being rotated or not rotated by said shaft depending upon the degree of frictional engagement therebetween, a plurality of endless elastomeric drive belts, each having a round cross section and extending around one of said spools and through a circumferential groove around a respective one of said rollers, said locating device having a C-shaped body which forms a mouth, the body being formed of resilient material and extending around more than 180° to provide a mouth with a height significantly less than the out-side diameter of said drive shaft and being of a size whereby it may be manually snapped transversely onto said drive shaft to a position where it grips the drive shaft with sufficient force to prevent it being axially displaced or accidently dislodged from the drive shaft by the normal operating force of a spool, although allowing it to be manually relocated along the drive shaft, said locating device normally being positioned on the drive shaft adjacent said spool to locate the spool against downstream axial shifting along the drive shaft.
2. A locating device as claimed in claim 1 wherein the body has a uniform C-shaped cross section, thereby providing an inner surface which is entirely in contact with the drive shaft in the engaged position, the body being of sufficient width to provide the desired gripping strength.
3. A locating device as claimed in claim 1 wherein the body has at least one smooth side wall to be in contact with said spool to minimize frictional forces between them.
4. A locating device as claimed in claim 1, 2 or 3 wherein the body is formed of DELRIN (a Trade Mark of DuPont of Canada Limited).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA341,202A CA1107224A (en) | 1979-12-04 | 1979-12-04 | Line shaft live roller conveyor spool locating device |
| AU64735/80A AU6473580A (en) | 1979-12-04 | 1980-11-26 | Lime shaft live roller conveyor spool locating device |
| JP16920180A JPS5693606A (en) | 1979-12-04 | 1980-12-02 | Device for positioning spool on cylindrical driving shaft by line shaft drive type roller conveyor |
| GB8038690A GB2067498A (en) | 1979-12-04 | 1980-12-03 | Roller driving arrangement |
| DE19803045621 DE3045621A1 (en) | 1979-12-04 | 1980-12-03 | FIXING ELEMENT FOR ROLLER FEEDER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA341,202A CA1107224A (en) | 1979-12-04 | 1979-12-04 | Line shaft live roller conveyor spool locating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1107224A true CA1107224A (en) | 1981-08-18 |
Family
ID=4115752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA341,202A Expired CA1107224A (en) | 1979-12-04 | 1979-12-04 | Line shaft live roller conveyor spool locating device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5693606A (en) |
| AU (1) | AU6473580A (en) |
| CA (1) | CA1107224A (en) |
| DE (1) | DE3045621A1 (en) |
| GB (1) | GB2067498A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02112609U (en) * | 1989-02-28 | 1990-09-10 | ||
| CN103964118A (en) * | 2013-02-05 | 2014-08-06 | 上海嘉峥机械有限公司 | Logistics automatic conveying line shaft power roller conveyor |
| CN112407753A (en) * | 2020-10-29 | 2021-02-26 | 和进(滁州)自动化科技有限公司 | Automatic assembly line equipment with sorting function |
-
1979
- 1979-12-04 CA CA341,202A patent/CA1107224A/en not_active Expired
-
1980
- 1980-11-26 AU AU64735/80A patent/AU6473580A/en not_active Abandoned
- 1980-12-02 JP JP16920180A patent/JPS5693606A/en active Pending
- 1980-12-03 DE DE19803045621 patent/DE3045621A1/en not_active Withdrawn
- 1980-12-03 GB GB8038690A patent/GB2067498A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE3045621A1 (en) | 1981-06-11 |
| GB2067498A (en) | 1981-07-30 |
| JPS5693606A (en) | 1981-07-29 |
| AU6473580A (en) | 1981-06-11 |
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