CA1234397A - Apparatus for automatic removal of articles from containers - Google Patents
Apparatus for automatic removal of articles from containersInfo
- Publication number
- CA1234397A CA1234397A CA000475645A CA475645A CA1234397A CA 1234397 A CA1234397 A CA 1234397A CA 000475645 A CA000475645 A CA 000475645A CA 475645 A CA475645 A CA 475645A CA 1234397 A CA1234397 A CA 1234397A
- Authority
- CA
- Canada
- Prior art keywords
- holding means
- extractor arm
- arm
- stand
- container
- 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
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Abstract
ABSTRACT
An apparatus for automatically extracting objects individually from containers comprises a stand, beneath which a container having the objects that are to be ex-tracted can be erected; an extractor arm movably disposed on the stand in the area above the container; a device for axially extending and retracting the extractor arm;
and a device for guiding the grasping element of the ex-tractor arm to various areas in the container interior.
In order to attain reliable emptying of the container, especially in the rim areas and corners, a holding device for the extractor arm is provided, which is connected to the stand via a cardan joint suspension system. A drive mechanism is provided for the longitudinal displacement of the extractor arm relative to the holding device is provided, as are further drive mechanisms for pivoting the holding device in two vertical planes at right angles to one another.
An apparatus for automatically extracting objects individually from containers comprises a stand, beneath which a container having the objects that are to be ex-tracted can be erected; an extractor arm movably disposed on the stand in the area above the container; a device for axially extending and retracting the extractor arm;
and a device for guiding the grasping element of the ex-tractor arm to various areas in the container interior.
In order to attain reliable emptying of the container, especially in the rim areas and corners, a holding device for the extractor arm is provided, which is connected to the stand via a cardan joint suspension system. A drive mechanism is provided for the longitudinal displacement of the extractor arm relative to the holding device is provided, as are further drive mechanisms for pivoting the holding device in two vertical planes at right angles to one another.
Description
~L~3~3~3~
The present invention relates to an apparatus for automatically extracting objects, either individually or in groups, from containers. The apparatus includes a stand, beneath which or in the vicinity thereof at least one container having the objects to be extracted can be positioned; an extractor arm disposed movably on the stand in the area above the container; a device for axially extending and retracting the extractor arm; and a device for guiding the extractor arm grasping element toward various areas inside the container.
Known automatically operating extra~tor apparatus of this general type have a vertically disposed extractor arm which can be driven in a coordinate system in a horizontal plane and is extendable and retractable in the direction of its longitudinal axis.
Modern receptacle containers, especially those which must be very sturdily built so as to transport heavy objects, have an upper rim, drawn partway inward at least in some areas, conse~uently making it difficult to remove objects from the lower side areas and the corners using the known extractor apparatus. It may therefore happen with the known apparatus that individual objects cannot be extract-ed from the container.
Accordingly, it is an object of the present invention to improve an extractor apparatus of the type discussed above such that satisfactory emptying of the containers is assured.
In accordance with the present invention, ~his object is attained by provision of an apparatus which includes a holding device for the extractor arm which is connected to the frame via a cardan joint suspension system, by a 3~3~
drive mechanism for the longitudinal displacement of the extractor arm relative to the holding device, and further drive mechanisms for pivoting the holding device in vari-ous planes which are at angle to one another.
In the apparatus according to the present invention it is possible to guide the extractor arm obliquely into the corners or underneath the upper edge of the container, so that all areas of the ccntainer interior are readily accessible to the extractor arm. Furthermore, the cost of construction is less due to the use of the cardan sus-pension of the extractor arm.
Moving the holding device of the present invention in the area of the cardan joint suspension system is accomplished by two drive mechanisms for pivoting the holding device in lS two vertical planes at right angles to one another.
The cardan joint suspensi-on of the holding device may have a horizontal, pivotable supporting beam supported in the stand as well as a cross beam supported on the supporting beam, the holding device being suspended on the cross beam.
On the supporting beam, rigid supporting arms may be provided on both sides of the holding device of the ex-tractor arm, the supporting arms being located in the pivoting plane of the holding device, which is defined by the cross beam. A drive mechanism for pivoting the hold-ing device about the cross beam is disposed between thetwo supporting arms. Due to the type of suspension used, movement of the extractor arm into all the areas of the container is made possible by relatively simple means.
A drive mechanism for piuoting the holding device about the cross beam is accomplished by a threaded spindle which is rotatable with the aid of a motor and a nut supported on a spindle, such that the nut is not rotatable relative ~L23L~L3~
to the holding device; the nut being connected to the holding device via a carrier rod, and both connecting points being articulated joints.
Pivoting the holding device about the supporting beam is achieved by pxoviding a drive mechanism which at one end engages the stand and at the other end engages at least one of the supporting armsO The drive mechanism for pivoting the holding device about the supporting beam also includes a threaded spindle which is axially station ary relative to the stand and drivable by means of a motor, and a nut seated on a spindle, which is joined via a toggle link to a respective supporting arm.
The extractor arm of the present invention is expediently guided longitudinally displaceably on the holding device, A carried is movable via a threaded spindle with the aid of a motor acting as the drive mechanism for the extractor arm. The extractor arm is preferably supported by its own weight at the top on the carrier, so that when the extrac-tor arm meets any resistance, a free-wheeling effect results; in other words, the extractor arm is not driven any longer.
Trip cams for actuating counting switches may be provided on the threaded spindles, so that the extractor arm can ~e moved into a precisely prespecified position by various specified numbers of rotations of the threaded spindles.
The extractor arm is preferably controllable in accordance with prespecified programs, and the drive motors are switched on and off via the counting switches.
The particular program, according to which the holding device supporting the extractor arm is moved, may be ad-justed to various container sizes and shape~ and also to various types and shapes of objects to be extracted.
If the apparatus is provided for extracting magnetizable objects, an electromagnet may be provided as the grasping element of the extractor arm. This electromagnet is pre-ferably suspended by a cardan joint.
The present invention is illustrated in the drawings by way of example and described in detail below.
In the drawings:
Figure l is a front elevational view of an apparatus for the automatic extraction of individual objects from containers; and Figure 2 is a side elevational view of the apparatus.
Referring to Figure l of the drawings, the automatic extractor apparatus substantially includes a stand 1, an extractor arm 2 suspended on the stand by a cardan joint and a receiving area 3 in the lower portion of the stand l below the extractor arm 2, for a container 4 that is to be emptied.
The stand l is incorporated with sturdy steel beams 5 and is provided with a protecting sheathing on its outside, not shown in detail in the drawing, which can be opened at the side or top for the insertion of a container 4.
I~ide the &tand 1, or ~terally ~eside it, a col~lecting container 6 is provided for the objects individually ex-tracted from the container 4. With the aid of an inclined hoist 7, the objects are delivered to an outlet chute 8.
Alternatively, other conveying and sorting devices are also conceivable.
An upper supporting beam 9, which is supported at the top ;-on the stand 1, serves to effect the cardan suspension o~the extractor arm 2. Approximately in the centre of the supporting beam 9, a short cross beam 10 is supported, and a holding device 11 for the extractor arm 2 is sus-pended onlthe cross beam 10. The centre line of the crossbeam 10 extends precisely at right angles to the centre line of the supporting beam 9.
On the opposite sides of the centre line of the cross beam 10, spaced apart from the cross beam, respective support-ing arms 12 and 13 are secured to the supporting beam 9.
In the outset position, the supporting arms 12 and 13 hang vertically downward, similar to the extractor arm 2.
Between the two supporting arms 12 and 13 is disposed athreaded spindle 14, which is drivable via step-down gear 15 with the aid of an electric motor 16. The gear and the motor are secured on the supporting arm 12. A nut, not shown in detail in the drawing, is seated on the threaded spindle 14. The nut is not able to rotate rela-tive to the holding device 11 and is connected to the holding device via a carrier rod; both connecting points are embodied as articulated joints, so that when the hold-ing device 11 pivots, the differences in level between the articulation points on the holding device 11, and the nut can be compensated for.
A threaded spindle 17, which is stationary relative to the stand 1 and is drivable via a step-down gear 18 by means of an electric motor 19, serves to pivot the holding device 11 about the supporting beam 9. All that is visible in the drawing of the threaded spindle 17, as in the case of the threaded spindle 14 extending crosswise to it, in the drawing is an outer sheathing surrounding each spindle.
A nut 20 is seated on the threaded spindle 17 protruding out of the sheathing at the bottom. ~ccordingly, only the lower portion of the nut 20 is visible. The nut 20 is :~, ~3~
-- 6 ~
joined via a toggle link 21 to a bearing tang 22, which is provided on the side of the supporting arm 13 oriented to-ward the threaded spindle 17.
Also provided on the holding device 11 is a threaded spindle 23, which is drivable with the aid of an electric motor 24. A nut 25 is seated on the threaded spindle 23 and a carrier 26 cooperating with the extractor arm 2 is disposed on the nut 25. The extractor arm 2 rests with a support plate 27 on the carrier 26, so that wha~ rests on the support plate 27 is the weight of the extractor arm 2, perhaps reduced by a dead weight, not shown. When the carrier 26 is lowered, it carries the extractor arm 2 along with it due to its own weight. When the grasping element 28 at the bottom of the extractor arm 2 meets an object that is to be extracted, the extractor arm 2 comes to a stop, while the carrier 26 can still move some dis-tance beyond. This free-wheeling effect has the result that the extractor arm 2 can be placed upon some object to be extracted while exerting no more than its own weight, optionally reduced by the counterweight provided. As a res~llt, extremely gentle handling of the objects that are to be extracted is assured.
If magnetizable obJects are to be removed from the container 4, the grasping element 28, which is disposed such that it can be removed and replaced, can be an electromagnet. This magnet is likewise suspended b~ a cardan joint at the lower end of the extractor arm 2, so that no matter what the position of the extractor arm 2, the magnet can always be placed precisely vertically upon an object that is to be extracted.
The actuation of the apparatus is effected via a program-mable control unit, not shown in the drawing. The extrac-tor arm 2 is moved in such a manner that it scans the ~3~7 cross section of the container in a grid pattern, line by line, and at a specified number of positions in each line.
The grid pattern is adjustable in accordance with the size of the objects that are to be extracted. The down-ward movement of the extractor arm 2 is terminated immedi-ately after the grasping element 28 is in place on an ob-ject. The lowermost position prior to touching the bottom, as the container becomes empty, i5 programmed for all pos-sible depths to which the arm may plunge. Upon each lifting movement, it is possible to monitor whether objects have been taken up with the arm. If there is a nil indi-cation, the extractor arm 2 moves into the next programmed grid position. Positions ~hich are recognized, at the maximum plunging depth, as being empty are not approached again.
Control is effected via actuation of the three electric motors 16, 19 and 24; the times at which these motors are switched on and off are determined with -the aid of count-ing switches, which are actuated with the aid of cams seated on the threaded spindles. Alternating-current braking motors are preferably used as the electric motors.
Due to the cardan joint suspension of the extractor arm
The present invention relates to an apparatus for automatically extracting objects, either individually or in groups, from containers. The apparatus includes a stand, beneath which or in the vicinity thereof at least one container having the objects to be extracted can be positioned; an extractor arm disposed movably on the stand in the area above the container; a device for axially extending and retracting the extractor arm; and a device for guiding the extractor arm grasping element toward various areas inside the container.
Known automatically operating extra~tor apparatus of this general type have a vertically disposed extractor arm which can be driven in a coordinate system in a horizontal plane and is extendable and retractable in the direction of its longitudinal axis.
Modern receptacle containers, especially those which must be very sturdily built so as to transport heavy objects, have an upper rim, drawn partway inward at least in some areas, conse~uently making it difficult to remove objects from the lower side areas and the corners using the known extractor apparatus. It may therefore happen with the known apparatus that individual objects cannot be extract-ed from the container.
Accordingly, it is an object of the present invention to improve an extractor apparatus of the type discussed above such that satisfactory emptying of the containers is assured.
In accordance with the present invention, ~his object is attained by provision of an apparatus which includes a holding device for the extractor arm which is connected to the frame via a cardan joint suspension system, by a 3~3~
drive mechanism for the longitudinal displacement of the extractor arm relative to the holding device, and further drive mechanisms for pivoting the holding device in vari-ous planes which are at angle to one another.
In the apparatus according to the present invention it is possible to guide the extractor arm obliquely into the corners or underneath the upper edge of the container, so that all areas of the ccntainer interior are readily accessible to the extractor arm. Furthermore, the cost of construction is less due to the use of the cardan sus-pension of the extractor arm.
Moving the holding device of the present invention in the area of the cardan joint suspension system is accomplished by two drive mechanisms for pivoting the holding device in lS two vertical planes at right angles to one another.
The cardan joint suspensi-on of the holding device may have a horizontal, pivotable supporting beam supported in the stand as well as a cross beam supported on the supporting beam, the holding device being suspended on the cross beam.
On the supporting beam, rigid supporting arms may be provided on both sides of the holding device of the ex-tractor arm, the supporting arms being located in the pivoting plane of the holding device, which is defined by the cross beam. A drive mechanism for pivoting the hold-ing device about the cross beam is disposed between thetwo supporting arms. Due to the type of suspension used, movement of the extractor arm into all the areas of the container is made possible by relatively simple means.
A drive mechanism for piuoting the holding device about the cross beam is accomplished by a threaded spindle which is rotatable with the aid of a motor and a nut supported on a spindle, such that the nut is not rotatable relative ~L23L~L3~
to the holding device; the nut being connected to the holding device via a carrier rod, and both connecting points being articulated joints.
Pivoting the holding device about the supporting beam is achieved by pxoviding a drive mechanism which at one end engages the stand and at the other end engages at least one of the supporting armsO The drive mechanism for pivoting the holding device about the supporting beam also includes a threaded spindle which is axially station ary relative to the stand and drivable by means of a motor, and a nut seated on a spindle, which is joined via a toggle link to a respective supporting arm.
The extractor arm of the present invention is expediently guided longitudinally displaceably on the holding device, A carried is movable via a threaded spindle with the aid of a motor acting as the drive mechanism for the extractor arm. The extractor arm is preferably supported by its own weight at the top on the carrier, so that when the extrac-tor arm meets any resistance, a free-wheeling effect results; in other words, the extractor arm is not driven any longer.
Trip cams for actuating counting switches may be provided on the threaded spindles, so that the extractor arm can ~e moved into a precisely prespecified position by various specified numbers of rotations of the threaded spindles.
The extractor arm is preferably controllable in accordance with prespecified programs, and the drive motors are switched on and off via the counting switches.
The particular program, according to which the holding device supporting the extractor arm is moved, may be ad-justed to various container sizes and shape~ and also to various types and shapes of objects to be extracted.
If the apparatus is provided for extracting magnetizable objects, an electromagnet may be provided as the grasping element of the extractor arm. This electromagnet is pre-ferably suspended by a cardan joint.
The present invention is illustrated in the drawings by way of example and described in detail below.
In the drawings:
Figure l is a front elevational view of an apparatus for the automatic extraction of individual objects from containers; and Figure 2 is a side elevational view of the apparatus.
Referring to Figure l of the drawings, the automatic extractor apparatus substantially includes a stand 1, an extractor arm 2 suspended on the stand by a cardan joint and a receiving area 3 in the lower portion of the stand l below the extractor arm 2, for a container 4 that is to be emptied.
The stand l is incorporated with sturdy steel beams 5 and is provided with a protecting sheathing on its outside, not shown in detail in the drawing, which can be opened at the side or top for the insertion of a container 4.
I~ide the &tand 1, or ~terally ~eside it, a col~lecting container 6 is provided for the objects individually ex-tracted from the container 4. With the aid of an inclined hoist 7, the objects are delivered to an outlet chute 8.
Alternatively, other conveying and sorting devices are also conceivable.
An upper supporting beam 9, which is supported at the top ;-on the stand 1, serves to effect the cardan suspension o~the extractor arm 2. Approximately in the centre of the supporting beam 9, a short cross beam 10 is supported, and a holding device 11 for the extractor arm 2 is sus-pended onlthe cross beam 10. The centre line of the crossbeam 10 extends precisely at right angles to the centre line of the supporting beam 9.
On the opposite sides of the centre line of the cross beam 10, spaced apart from the cross beam, respective support-ing arms 12 and 13 are secured to the supporting beam 9.
In the outset position, the supporting arms 12 and 13 hang vertically downward, similar to the extractor arm 2.
Between the two supporting arms 12 and 13 is disposed athreaded spindle 14, which is drivable via step-down gear 15 with the aid of an electric motor 16. The gear and the motor are secured on the supporting arm 12. A nut, not shown in detail in the drawing, is seated on the threaded spindle 14. The nut is not able to rotate rela-tive to the holding device 11 and is connected to the holding device via a carrier rod; both connecting points are embodied as articulated joints, so that when the hold-ing device 11 pivots, the differences in level between the articulation points on the holding device 11, and the nut can be compensated for.
A threaded spindle 17, which is stationary relative to the stand 1 and is drivable via a step-down gear 18 by means of an electric motor 19, serves to pivot the holding device 11 about the supporting beam 9. All that is visible in the drawing of the threaded spindle 17, as in the case of the threaded spindle 14 extending crosswise to it, in the drawing is an outer sheathing surrounding each spindle.
A nut 20 is seated on the threaded spindle 17 protruding out of the sheathing at the bottom. ~ccordingly, only the lower portion of the nut 20 is visible. The nut 20 is :~, ~3~
-- 6 ~
joined via a toggle link 21 to a bearing tang 22, which is provided on the side of the supporting arm 13 oriented to-ward the threaded spindle 17.
Also provided on the holding device 11 is a threaded spindle 23, which is drivable with the aid of an electric motor 24. A nut 25 is seated on the threaded spindle 23 and a carrier 26 cooperating with the extractor arm 2 is disposed on the nut 25. The extractor arm 2 rests with a support plate 27 on the carrier 26, so that wha~ rests on the support plate 27 is the weight of the extractor arm 2, perhaps reduced by a dead weight, not shown. When the carrier 26 is lowered, it carries the extractor arm 2 along with it due to its own weight. When the grasping element 28 at the bottom of the extractor arm 2 meets an object that is to be extracted, the extractor arm 2 comes to a stop, while the carrier 26 can still move some dis-tance beyond. This free-wheeling effect has the result that the extractor arm 2 can be placed upon some object to be extracted while exerting no more than its own weight, optionally reduced by the counterweight provided. As a res~llt, extremely gentle handling of the objects that are to be extracted is assured.
If magnetizable obJects are to be removed from the container 4, the grasping element 28, which is disposed such that it can be removed and replaced, can be an electromagnet. This magnet is likewise suspended b~ a cardan joint at the lower end of the extractor arm 2, so that no matter what the position of the extractor arm 2, the magnet can always be placed precisely vertically upon an object that is to be extracted.
The actuation of the apparatus is effected via a program-mable control unit, not shown in the drawing. The extrac-tor arm 2 is moved in such a manner that it scans the ~3~7 cross section of the container in a grid pattern, line by line, and at a specified number of positions in each line.
The grid pattern is adjustable in accordance with the size of the objects that are to be extracted. The down-ward movement of the extractor arm 2 is terminated immedi-ately after the grasping element 28 is in place on an ob-ject. The lowermost position prior to touching the bottom, as the container becomes empty, i5 programmed for all pos-sible depths to which the arm may plunge. Upon each lifting movement, it is possible to monitor whether objects have been taken up with the arm. If there is a nil indi-cation, the extractor arm 2 moves into the next programmed grid position. Positions ~hich are recognized, at the maximum plunging depth, as being empty are not approached again.
Control is effected via actuation of the three electric motors 16, 19 and 24; the times at which these motors are switched on and off are determined with -the aid of count-ing switches, which are actuated with the aid of cams seated on the threaded spindles. Alternating-current braking motors are preferably used as the electric motors.
Due to the cardan joint suspension of the extractor arm
2, it can be pivoted in any arbitrary position. Since the extractor arm is suspended over the container opening, it can be driven steadily obli~uely as it approaches the inner rim areas and corners of the container, so that it can readily reach into all areas, moving past the upper inwardly drawn container rim. Once the extractor arm 2 has grasped an object, it can pivot laterally toward the left, as shown in Figure 1, and deposit the object in the collecting container 6.
In the exemplary embodiment shown in the drawing, the cardan joint suspension of the extractor arm 2 is not directly above the centre of the container 4 but is instead ~343~7 shifted somewhat toward the side of the collecting container 6, so that the lateral pivoting angle in both directions can be exploited to the fullest and the maxi-mum pivoting angle can be kept small, The pivoting angle for reaching the collecting container is exactly the same size as the pivo-ting angle for approaching the opposite rim of the container 4.
As will be understood by those skilled in the art, various changes and modifications may be made without departing from the scope of the invention and the invention is,,not to be considered limited to what is shown in the drawings and described by way of ~xample.
In the exemplary embodiment shown in the drawing, the cardan joint suspension of the extractor arm 2 is not directly above the centre of the container 4 but is instead ~343~7 shifted somewhat toward the side of the collecting container 6, so that the lateral pivoting angle in both directions can be exploited to the fullest and the maxi-mum pivoting angle can be kept small, The pivoting angle for reaching the collecting container is exactly the same size as the pivo-ting angle for approaching the opposite rim of the container 4.
As will be understood by those skilled in the art, various changes and modifications may be made without departing from the scope of the invention and the invention is,,not to be considered limited to what is shown in the drawings and described by way of ~xample.
Claims (14)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for the automatic extraction of objects, individually or in groups, from containers, including a stand beneath which or in the vicinity thereof at least one container having the objects to be extracted can be positioned, an extractor arm disposed in a movable manner on the stand in the area above the container, a device for the axial extension and retraction of the extractor arm, and a device for guiding a grasping element of the extractor arm toward various areas in the interior of the container, comprising:
a holding means for the extractor arm and a cardan joint suspension connecting said holding means to said stand;
first drive means for displacing the extractor arm longi-tudinally relative to said holding means; and second drive means for pivoting said holding means in various planes located at angles from one another.
a holding means for the extractor arm and a cardan joint suspension connecting said holding means to said stand;
first drive means for displacing the extractor arm longi-tudinally relative to said holding means; and second drive means for pivoting said holding means in various planes located at angles from one another.
2. An apparatus as defined by Claim 1, wherein said second drive means include two drive mechanisms for pivot-ing the holding means in two vertical planes located at right angles to one another.
3. An apparatus as defined by Claim 1, wherein said cardan joint suspension of said holding means includes a horizontal, pivotable supporting beam supported on the stand and a cross beam supported on the supporting beam for suspending therefrom said holding means.
4. An apparatus as defined by Claim 3, wherein said supporting beam includes first and second rigid supporting arms positioned at opposite sides of said holding means, said arms being located in the pivoting plane, defined by the cross beam of the holding means, and a first of said drive mechanisms for pivoting the holding means about the cross beam being disposed between said first and second supporting arms.
5. An apparatus as defined by Claim 4, and further including first rotatable threaded spindle means, a first motor for rotating said spindle means to pivot said hold-ing means about said cross beam, a first nut non-rotatably supported relative to the holding means, said first nut being disposed on said threaded spindle, and said first nut being connected to the holding means via a carrier rod, the connection points of said carrier rod being em-bodied as articulated joints.
6. An apparatus as defined by Claim 4, wherein a second of said drive mechanisms includes means for pivoting the holding means about the supporting beam, said second drive mechanism engaging, at one end, the stand and engaging, at the other end, at least one of the supporting arms.
7. An apparatus as defined by Claim 5, and further including:
second threaded spindle means supported on, and axially stationary relative to, the stand, said second spindle means being drivable by a second motor for rotating said second spindle means so that said holding means is pivoted about the supporting beam;
a nut coupled to said second spindle means; and a toggle link connecting said nut with the respective supporting arm seated upon said second threaded spindle means.
second threaded spindle means supported on, and axially stationary relative to, the stand, said second spindle means being drivable by a second motor for rotating said second spindle means so that said holding means is pivoted about the supporting beam;
a nut coupled to said second spindle means; and a toggle link connecting said nut with the respective supporting arm seated upon said second threaded spindle means.
8. An apparatus as defined by Claim 1, wherein said extractor arm is guided for longitudinally displaceable movement on the holding means, and apparatus further including a carrier, said first drive means comprising a motor and a threaded spindle, said motor being coupled with said carrier and said spindle for moving said extrac-tor arm longitudinally on said holding means.
9. An apparatus as defined by Claim 8, wherein said extractor arm is supported on said carrier by its own weight, and may be reduced by a counterweight.
10. An apparatus as defined by Claim 1, wherein said first and second drive means include threaded spindle means, and trip cams for actuating counting switches are provided on said threaded spindles.
11. An apparatus as defined by Claim 10, and further including means for controlling movement of said extractor arm in accordance with prespecified programs, selective actuation of the drive means being effected via the count-ing switches.
12. An apparatus as defined by Claim 11, wherein each respective program is dependent upon parameters represent-ing various container dimensions and different shapes and types of objects to be extracted.
13. An apparatus as defined by Claim 1, wherein said extractor arm includes an electromagnet grasping element for the extraction of magnetizable objects from said containers.
14. An apparatus as defined by Claim 13, wherein the electromagnet grasping element is suspended by a cardan joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000475645A CA1234397A (en) | 1985-03-04 | 1985-03-04 | Apparatus for automatic removal of articles from containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000475645A CA1234397A (en) | 1985-03-04 | 1985-03-04 | Apparatus for automatic removal of articles from containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1234397A true CA1234397A (en) | 1988-03-22 |
Family
ID=4129948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000475645A Expired CA1234397A (en) | 1985-03-04 | 1985-03-04 | Apparatus for automatic removal of articles from containers |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1234397A (en) |
-
1985
- 1985-03-04 CA CA000475645A patent/CA1234397A/en not_active Expired
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |