WO1997031843A1 - Detecteur a rouleaux pour detecter des objets legers - Google Patents

Detecteur a rouleaux pour detecter des objets legers Download PDF

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Publication number
WO1997031843A1
WO1997031843A1 PCT/US1997/003091 US9703091W WO9731843A1 WO 1997031843 A1 WO1997031843 A1 WO 1997031843A1 US 9703091 W US9703091 W US 9703091W WO 9731843 A1 WO9731843 A1 WO 9731843A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
sensor assembly
conveyor
arms
rollers
Prior art date
Application number
PCT/US1997/003091
Other languages
English (en)
Other versions
WO1997031843A9 (fr
Inventor
John T. Martin
Timothy L. Lansberry
James D. Habegger
Original Assignee
The Buschman Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Buschman Company filed Critical The Buschman Company
Priority to JP9531120A priority Critical patent/JPH11504609A/ja
Publication of WO1997031843A1 publication Critical patent/WO1997031843A1/fr
Publication of WO1997031843A9 publication Critical patent/WO1997031843A9/fr

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
    • 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
    • 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
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/04—Detection means
    • B65G2203/042—Sensors

Definitions

  • Timothy L. Lansberry entitled A SENSOR FOR DETECTING LIGHTWEIGHT OBJECTS ON A CONVEYOR.
  • the invention relates to a mechanical sensor assembly for detecting objects on a conveyor, and more particularly to such a sensor assembly which enables the conveying of lighter objects at greater speeds than hitherto possible with a mechanical sensor.
  • U.S. Patents 4,441,607; 5,191 ,967; 5,348, 139 and 5,358,097 teach exemplary embodiments of conveyors having mechanical sensors for this purpose.
  • a conveyor is divided into a series of zones, each provided with a sensor.
  • the sensor of each zone when actuated by a product, will cause the rollers of the next preceding zone (or the second preceding zone depending upon the speed of the conveyor) to stop until the conveyed object in the first mentioned zone passes on and releases the sensor.
  • the sensor engages and releases the actuating plunger or stem of an air valve. It will be understood by one skilled in the art that the sensor could actuate and release an electrical switch or any appropriate two-state device suitable for controlling the rollers of a preceding zone.
  • a constant goal of prior art workers is to develop a mechanical sensor for conveyors which is capable of detecting very lightweight objects being conveyed. While it is known that electronic photo-eye technology can be used to detect any object regardless of its weight, electronic photo-eye sensors generally comprise elaborate and very expensive systems. Present prior art mechanical systems have been developed to the point where they can detect objects having a weight of about 1 pound.
  • the present invention is directed to a mechanical sensor system for the purposes described above, characterized by the use of knife-edge fulcrums for the sensor arms.
  • the sensor assembly is of lightweight construction and the total mass of the sensor assembly has been reduced. As a consequence, the sensor of the present invention is capable of sensing conveyed objects having the weight of 0.38 pound or less.
  • a sensor assembly for detecting the presence of lightweight objects on a conveyor of the type having conveyor rollers.
  • Each conveyor roller of the conveyor is rotatively mounted on a shaft fixed between the side frames of the conveyor.
  • a selected one of the conveyor rolls is shorter than the others.
  • the shaft of this shorter conveyor roller has non-rotatively fixed thereon a pair of knife-edge fulcrum bearings.
  • Each fulcrum bearing is located between one of the conveyor side frames and the adjacent end of the short conveyor roller.
  • a pair of sensor arms are each rockably mounted on one of the knife-edge bearings.
  • the sensor arms are elongated members having an upper end and a lower end. The upper ends of the sensor arms are joined together by a shaft having a plurality of lightweight sensor rollers mounted thereon.
  • the sensor arms are rockable on their knife-edge bearings between a normal position wherein the sensor rollers are elevated above the adjacent conveyor rollers, and an actuated position.
  • An adjustable balance spring balances the sensor assembly, including the sensor arms and rollers, at their normal position.
  • a two-state device is mounted on one of the conveyor side frames and is maintained in a first state by the adjacent one of the sensor arms in its normal position.
  • the switching device is released to its second state by the same sensor arm when the sensor arm is actuated.
  • the switching device may be of any appropriate type including a pneumatic valve.
  • the sensing device may be used to control the movement of objects along the conveyor.
  • the conveyor may be divided into zones, each zone being provided with a sensor of the present invention.
  • Figure 1 is a fragmentary longitudinal cross-sectional view of a conveyor provided with the sensor assembly of the present invention, and showing the sensor assembly in its normal, unactuated position.
  • Figure 2 is a fragmentary, longitudinal cross-sectional view, similar to Figure 1 , and illustrating the sensor assembly in its actuated position caused by an object passing thereover.
  • Figure 3 is a fragmentary plan view of the structure of Figure 1 , as seen along line 3-3 of Figure 2, and with the object being conveyed shown in broken lines.
  • Figure 4 is a fragmentary cross-sectional view taken along section line 4-4 of Figure 1.
  • Figure 5 is a longitudinal cross-sectional view, similar to Figures 1 and 2, illustrating the use of a pair of interconnected sensor assemblies of the present invention.
  • Figure 6 is a fragmentary elevational view illustrating the end of a conveyor roller shaft mounted in a vertical slot formed in one of the conveyor side frames.
  • Figure 7 is a fragmentary view illustrating a fulcrum bearing attached to a sensor arm by a "living hinge" .
  • FIG. 1 a conveyor is generally indicated at 1.
  • the conveyor 1 comprises side frames 2 and 3.
  • the side frames 2 and 3 may be mounted on conventional vertical supports or legs (not shown) and will have appropriate transverse bracing (not shown) therebetween, all as is well known in the art.
  • Conveyor side frames 2 and 3 support a plurality of evenly spaced shafts 4 (including shaft 4a).
  • the shafts 4 and 4a are non-rotatively affixed to side frames 2 and 3 in any appropriate way.
  • the shafts 4 and 4a are of hexagonal cross-section and extend through hexagonal openings in the side frames 2 and 3.
  • the shafts 4 and 5a could be mounted at each end in vertical slots 4b for both convenience and safety.
  • the shaft 4 or 4a can simply be lifted from its respective slots.
  • Each of the shafts 4 has a conveyor roller 5 rotatively mounted thereon with suitable bearings (not shown). It will be noted that conveyor roller shaft 4a carries a conveyor roller
  • the conveyor 1 may be divided into a series of zones, each containing a predetermined number of conveyor rollers 5.
  • Each zone may also have a short conveyor roller 5a and a sensor assembly of the present invention which is generally indicated in the Figures at 6.
  • the conveyor rollers 5 and 5a of each zone are capable of being driven so as to convey objects therealong.
  • Prior art workers have devised a number of ways of powering the conveyor rollers of each zone independently of the conveyor rollers of adjacent zones. The manner in which this is accomplished does not constitute a limitation of the present invention.
  • One of the ways to drive the conveyor rollers of a zone most frequently encountered is to provide a unit beneath the zone comprising a continuous driven belt or padded chain shiftable between an upper position and a lower position. In the lower position, the chain or belt is out of contact with and does not drive the conveyor rollers. In the upper position, the belt or padded chain frictionally engages the conveyor rollers 5 and 5a of its particular conveyor zone, driving the rollers in the desired direction as indicated by arrow A in Figures 1 and 3.
  • the sensor 6 comprises a pair of sensor arms 7 and 8.
  • the sensor arms 7 and 8 are pivotally associated with shaft 4a bearing conveyor roll 5a.
  • the sensor arms are interconnected at their upper ends by a shaft 9 which supports a plurality of sensor rollers 10.
  • the reason shaft 9 preferably bears a plurality of sensor rollers 10, rather than a single sensor roller, will be apparent hereinafter.
  • the sensor rollers are made as lightweight as possible to reduce the overall weight of sensor assembly 6.
  • the sensor rollers may, for example, be hollow plastic rollers.
  • the ends of shaft 9 are non-rotatively affixed to sensor arms 7 and 8 by pins shown at 11 and 12, or by any other appropriate means.
  • shaft 9 can be made of any appropriate material such as steel or aluminum rod or tubing, it has been found preferable that shaft 9 constitute a lightweight carbon fiber shaft. Excellent results have been achieved with a pultruded rod of unidirectionally oriented carbon fibers in a vinyl ester resin manufactured by DFI Pultruded Composts, Inc. of Erlanger, Kentucky. Shaft 9 does not rotate and is subject to bending forces each time a package passes over the sensor rollers. Furthermore, kraft cartons, handled on conveyor systems, often become distorted and catch the sensor rollers 10 imparting considerable force to the rollers 10 and shaft 9.
  • a carbon fiber shaft demonstrates flexing - characteristics which allow a carton to make the transition over the sensor rollers when a part of the carton sags below the top carrying surfaces of the conveyor rollers.
  • a carbon fiber shaft 9 is characterized by greater yield strength, so that when deflected, it returns to its original rectilinear condition. Steel or aluminum tube or rod shafts ultimately take on a permanent bend. As the sensitivity of the sensor is increased, the ruggedness of the sensor must be retained. The use of a carbon fiber shaft is a key factor to sensor longevity.
  • Sensor arm 7 and sensor arm 8 are identical. For this reason, a description of sensor arm 7 in conjunction with Figures 1 , 3 and 4 can be considered as a description of arm 8 as well.
  • Arm 7 is preferably made of plastic and lends itself well to be molded as an integral, one-piece structure.
  • Arm 7 comprises a central web 13 having an upper portion 13a, and intermediate portion 13b and a lower portion 13c.
  • arm 7 is provided with a transverse flange 14 extending from the lower end of arm 7 to the upper end of arm 7 and transversely to either side of web 13.
  • the flange 14 terminates in a circular flange 15 which extends to either side of web 13 and surrounds the opening 16 which receives shaft 9.
  • a transverse flange 17 extends along the front of arm 7 on both sides of web 13, merging with flange 14 as at 18, surrounding a hole 19 in arm 7, the purpose of which will be apparent hereinafter.
  • the flange 17 is also joined to flange 14 by a transverse flange 20, located on either side of web 13b.
  • arm 7 is provided with a downwardly extending branch of flange 17 shown at 17a.
  • the flange 17 and the flange 17a lie along two sides of a substantially triangular web 21 which is co-planar with web 13.
  • Sensor arm 7 has an opening 22 formed in web portion 13b. The opening
  • a knife-edge bearing 23 is fixedly and non-rotatively mounted on hexagonal shaft 4a. Knife-edge bearing 23 provides an edge bearing surface 23a which engages sensor arm 7 at the corner 22b of opening 22 therein. This arrangement enables sensor arm 7 to pivotally shift between a normal position shown in Figure 1 and a fully depressed position illustrated in Figure 2.
  • the knife-edge bearing 23 is also shown in Figure 3.
  • a similar knife-edge bearing 24 is mounted adjacent the other end of shaft 4a and provides a knife-edge bearing surface 24a.
  • sensor arms 7 and 8 are mounted on knife-edge bearings 23 and 24, respectively. It will now be apparent, particularly from Figure 3, that conveyor roller 5a is shorter than the other conveyor rollers 5 to make room for knife-edge bearings 23 and 24 on shaft 4a.
  • sensor rollers 10 When the sensor assembly 6 is in its normal, unactuated position, the sensor rollers 10 will be located slightly above the adjacent conveyor rollers 4a and 4. Sensor arm 7 will be in the position shown in Figure 1. It will be understood that sensor arm 8 will assume the same position shown in Figure 1 by virtue of the fact that it is operatively attached to sensor arm 7 by shaft 9.
  • sensor arm 7 may assume its fully depressed position shown in Figures 2 and 3.
  • sensor arm 8 will assume the same rotative position by virtue of the fact that it is connected to sensor arm 7 by shaft 9. The movement of sensor arm 7 between the unactuated position of Figure 1 and fully depressed position of Figure
  • a lightweight balance or tension spring 25 is provided.
  • the rearward end 25a of balance spring 25 is hooked through a perforation 26 in the lowermost end portion of sensor arm 7.
  • the forward end 25b of return spring 25 is hooked through an opening 27 in a tension adjustment bracket 28.
  • Adjustment bracket 28 has a longitudinal slot 29 formed therein through which a shoulder bolt 30 passes.
  • the shoulder bolt 30 extends through a spacer 31 and is threadedly engaged in conveyor side frame 2.
  • the elongated slot 29 in tension adjustment bracket 28 has a series of angular notches 29a through 29f and the shoulder bolt 30 can be engaged in any one of the notches 29a through 29f to adjust the tension of spring 25.
  • the tension of spring 25 must be enough to return and maintain the sensor rollers 10 in their normal, unactuated position shown in Figure 1 and to overcome the spring of the plunger actuator of a three-way valve to be described hereinafter. It will be understood by one skilled in the art, for example, that the wider the conveyor 1 , the longer will be shaft 9 and the greater will be the number of sensor rollers 10. This, in turn, increases the weight of sensor assembly 6 which can be accommodated by the tension adjustment bracket 28. Tension spring 25 and tension adjustment bracket 28 will be sufficient for the entire sensor assembly 6 and there is no need for a spring equivalent to spring 25 or a tension bracket equivalent to bracket 28 for sensor arm 8.
  • bracket 32 Affixed to the inside surface of conveyor side frame 2, adjacent sensor arm 7, there is a plate-like bracket 32. At its rearward end, bracket 32 has an integral in-turned lug 33 surrounded by a tubular segment 34 of resilient material such as plastic or rubber. The lug 33 and the resilient tube 34 thereabout serve as a stop for sensor arm 7 to prevent sensor arm 7 from going beyond its fully depressed position shown in Figure 2.
  • the bracket 32 also has an in-turned portion 35 (see also Figure 4) which slopes upwardly and forwardly as illustrated. Along its lowermost edge, in-turned portion 35 has an integral downwardly depending portion 36. Portions 35 and 36 are provided with perforations 35a and 36a (again see Figure 4), either one of which may receive the body of a three-way pneumatic valve. In Figures 1 and 2, such a pneumatic valve is shown in solid lines at 37 extending through perforation 35a of bracket portion 35. A similar pneumatic valve is shown in broken lines in an alternate position extending through the perforation 36a in bracket portion 36, and is indicated at 37a.
  • bracket 32 and balance spring 25 are both shown adjacent conveyor side frame 2. It will be understood by one skilled in the art, that since sensor arms 7 and 8 are identical, a mirror image of bracket 32 and the three-way valve 37 could be mounted on the other side frame 3 of conveyor 1 , and the same is true of spring 25 and tension adjust bracket 28. While not required, it is preferable to have these elements mounted on the same side frame of conveyor 1.
  • the sensor assembly 6 for lightweight objects of the present invention can be used for a number of purposes.
  • the sensor assembly 6 is located in a conveyor zone and is intended to activate and deactivate the rollers of an upstream zone, such as the next adjacent upstream zone, for example.
  • the sensor assembly 6 detects the presence of an object in its zone, it will release the valve actuator 38 of three-way valve 37 or the valve actuator 38a of three-way valve 37a to disconnect the conveyor rollers of the next preceding zone from their respective drive means.
  • FIG. 5 This Figure illustrates a dual sensor assembly made up of a first sensor assembly generally indicated at 6 and a second sensor assembly generally indicated at 6a.
  • FIG. 5 An example of such a situation is illustrated in Figure 5 wherein the objects being conveyed are tray-like objects having ends which slope downwardly and inwardly and having an upper peripheral flange. As a result of this, the length dimension of each tray is greater at its top than at its bottom. Thus, when the upper flanges of a pair of adjacent trays are abutting, their bottom surfaces are spaced from each other. In addition, the forwardmost end of the first tray may overlie the rollers of sensor assembly 6, but the bottom of the tray may not contact these rollers.
  • the sensor assemblies 6 and 6a are substantially identical.
  • the sensor arms 7 and 7a are joined together by a link 39.
  • the link 39 is pivoted as at 40 to the opening 19 (see Figure 1) in sensor arm 7.
  • the link 39 is pivoted as at 41 to the same hole (not shown) in arm 7a. It will be understood that while link 39 is illustrated connecting sensor arms 7 and 7a, the link 39 could connect the arms on the other side of the conveyor.
  • bracket 32 There will be only one bracket 32 with its stop 34 and valve mounting portions 35 and 36.
  • Both arms 7 and 7a may be provided with balancing springs 25 and 25a, tension adjustment brackets 28 and 28a, and shoulder bolts 30 and 30a, respectively.
  • the spring 25a, the adjustment bracket 28a and the shoulder bolt 30a can be eliminated if spring 25 is replaced with a spring appropriately selected with a greater spring rate and a higher initial tension.
  • the sensor assembly 6-6a of Figure 5 operates in exactly the same manner as the sensor of Figures 1 , 2 and 3. The only difference lies in the fact that if sensor rollers 10a of the system are depressed by a tray being conveyed, the rollers 10 will similarly be depressed by link 39, even though they are not contacted by the tray being conveyed.
  • the sensor system of the present invention is characterized by a low sensing force due to the knife-edge fulcrum bearings, very light construction and a low total mass.
  • lighter weight objects can be conveyed at a greater speed and the sensor assembly can sense lighter weight objects than hitherto possible by prior art mechanical sensing devices.
  • each fulcrum bearing an integral, one-piece part of its respective sensor arm.
  • Figure 7 shows a sensor arm 42 similar to sensor arms 7 and 8, but extruded as an open frame structure without intermediate web portions 13a, 13b, 13c and 21.
  • a fulcrum balance 43 similar to fulcrum balances 23 and 24, constitutes an integral, one-piece part of arm 42.
  • the fulcrum 43 is connected to arm 42 by a thin web 44 constituting a hinge frequently referred to in the plastic art as a
  • a living hinge may be defined as a thin plastic web connecting, and integral with, two parts, one of which is swingable with respect to the other by virtue of the web.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Control Of Conveyors (AREA)

Abstract

Un détecteur (6) permet de détecter la présence d'objets légers (25) transportés sur une transporteuse (1) du type à rouleaux transporteurs (5). Chaque rouleau transproteur (5) est monté de manière rotative sur un axe (4) fixé entre les cadres latéraux (2, 3) de la transporteuse. Une paire de paliers de type point d'appui (23) est montée de manière non rotative sur un axe sélectionné (4) de la transporteuse, chaque palier étant placé entre un cadre latéral (2, 3) de la transporteuse et l'extrémité adjacente du rouleau (5) monté sur l'axe sélectionné (4). Une paire de bras détecteurs (7, 8) est montée de manière basculante sur l'un des paliers de type point d'appui (23). Les bras détecteurs (7, 8) sont des éléments allongés sensiblement identiques dont les extrémités supérieures sont jointes par un axe (9) sur lequel sont montés de manière rotative plusieurs rouleaux de détection (10). Les bras détecteurs (16, 8) peuvent basculer entre une position normale dans laquelle les rouleaux de détection (10) sont élevés au-dessus des rouleaux adjacents transporteurs (5) et une position entièrement abaissée dans laquelle la surface supérieure des rouleaux de détection (10) est coplanaire avec la surface supérieure des rouleaux transporteurs adjacents (5). Un ressort réglable d'équilibrage (25) équilibre les bras détecteurs (7, 8) et les rouleaux (10) dans leur position normale. Un dispositif de commutation à deux états (37) est monté sur l'un des cadres latéraux (2, 3) de la transporteuse et est maintenu dans un premier état par le bras adjacent (7, 8) dans sa position normale, puis ce dispositif de commutation est libéré ves son second état par le même bras détecteur (7, 8) lorsque ce dernier est déplacé vers sa position entièrement abaissée.
PCT/US1997/003091 1996-02-28 1997-02-28 Detecteur a rouleaux pour detecter des objets legers WO1997031843A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9531120A JPH11504609A (ja) 1996-02-28 1997-02-28 軽量物体用の駆動ローラセンサ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60835896A 1996-02-28 1996-02-28
US608,358 1996-02-28

Publications (2)

Publication Number Publication Date
WO1997031843A1 true WO1997031843A1 (fr) 1997-09-04
WO1997031843A9 WO1997031843A9 (fr) 1997-11-20

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PCT/US1997/003091 WO1997031843A1 (fr) 1996-02-28 1997-02-28 Detecteur a rouleaux pour detecter des objets legers

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JP (1) JPH11504609A (fr)
CA (1) CA2217542A1 (fr)
WO (1) WO1997031843A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006471A1 (fr) * 1998-07-28 2000-02-10 The Buschman Company Systeme de commande de transporteur a rouleaux incline gravitationnel
CN109941667A (zh) * 2019-05-06 2019-06-28 广西南宁凯隆包装设备有限公司 一种滚筒传送装置
US11055504B2 (en) 2017-04-18 2021-07-06 Berkshire Grey, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US11080496B2 (en) 2017-04-18 2021-08-03 Berkshire Grey, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11126807B2 (en) 2017-04-18 2021-09-21 Berkshire Grey, Inc. Systems and methods for processing objects including space efficient distribution stations and automated output processing
US11200390B2 (en) 2017-04-18 2021-12-14 Berkshire Grey, Inc. Systems and methods for separating objects using drop conveyors with one or more object processing systems
US11205059B2 (en) 2017-04-18 2021-12-21 Berkshire Grey, Inc. Systems and methods for separating objects using conveyor transfer with one or more object processing systems
US11301654B2 (en) 2017-04-18 2022-04-12 Berkshire Grey Operating Company, Inc. Systems and methods for limiting induction of objects to one or more object processing systems
WO2022073616A1 (fr) * 2020-10-08 2022-04-14 Telefonaktiebolaget Lm Ericsson (Publ) Agencement transporteur pour véhicules aériens
US11373134B2 (en) 2018-10-23 2022-06-28 Berkshire Grey Operating Company, Inc. Systems and methods for dynamic processing of objects with data verification
US11416695B2 (en) * 2017-04-18 2022-08-16 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems
WO2023137524A1 (fr) * 2022-01-20 2023-07-27 Matthew Ian Angilley Ensemble de manipulation automatique de barquettes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4538819B2 (ja) * 2008-01-15 2010-09-08 株式会社ダイフク 摩擦駆動搬送装置

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US4588073A (en) * 1984-09-26 1986-05-13 Alvey Inc. Padded chain live roller conveyor
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US5358097A (en) * 1990-10-30 1994-10-25 Rapistan Demag Corporation Accumulation conveyor with retractable sensor
US5429225A (en) * 1990-10-30 1995-07-04 Rapistan Demag Corporation Modular pneumatic accumulation conveyor and method

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US4588073A (en) * 1984-09-26 1986-05-13 Alvey Inc. Padded chain live roller conveyor
US5358097A (en) * 1990-10-30 1994-10-25 Rapistan Demag Corporation Accumulation conveyor with retractable sensor
US5429225A (en) * 1990-10-30 1995-07-04 Rapistan Demag Corporation Modular pneumatic accumulation conveyor and method
US5316130A (en) * 1991-07-03 1994-05-31 Litton Industrial Automation Systems, Inc. Zero pressure accumulation conveyor

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006471A1 (fr) * 1998-07-28 2000-02-10 The Buschman Company Systeme de commande de transporteur a rouleaux incline gravitationnel
US11416695B2 (en) * 2017-04-18 2022-08-16 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems
US11868840B2 (en) 2017-04-18 2024-01-09 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US11847513B2 (en) 2017-04-18 2023-12-19 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11126807B2 (en) 2017-04-18 2021-09-21 Berkshire Grey, Inc. Systems and methods for processing objects including space efficient distribution stations and automated output processing
US11200390B2 (en) 2017-04-18 2021-12-14 Berkshire Grey, Inc. Systems and methods for separating objects using drop conveyors with one or more object processing systems
US11205059B2 (en) 2017-04-18 2021-12-21 Berkshire Grey, Inc. Systems and methods for separating objects using conveyor transfer with one or more object processing systems
US11301654B2 (en) 2017-04-18 2022-04-12 Berkshire Grey Operating Company, Inc. Systems and methods for limiting induction of objects to one or more object processing systems
US11842248B2 (en) 2017-04-18 2023-12-12 Berkshire Grey Operating Company, Inc. Systems and methods for processing objects including space efficient distribution stations and automated output processing
US11080496B2 (en) 2017-04-18 2021-08-03 Berkshire Grey, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11055504B2 (en) 2017-04-18 2021-07-06 Berkshire Grey, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US11537807B2 (en) 2017-04-18 2022-12-27 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11481566B2 (en) 2017-04-18 2022-10-25 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US11681884B2 (en) 2017-04-18 2023-06-20 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using conveyor transfer with one or more object processing systems
US11748584B2 (en) 2017-04-18 2023-09-05 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using drop conveyors with one or more object processing systems
US11734526B2 (en) 2017-04-18 2023-08-22 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems
US11373134B2 (en) 2018-10-23 2022-06-28 Berkshire Grey Operating Company, Inc. Systems and methods for dynamic processing of objects with data verification
CN109941667A (zh) * 2019-05-06 2019-06-28 广西南宁凯隆包装设备有限公司 一种滚筒传送装置
WO2022073616A1 (fr) * 2020-10-08 2022-04-14 Telefonaktiebolaget Lm Ericsson (Publ) Agencement transporteur pour véhicules aériens
WO2023137524A1 (fr) * 2022-01-20 2023-07-27 Matthew Ian Angilley Ensemble de manipulation automatique de barquettes

Also Published As

Publication number Publication date
CA2217542A1 (fr) 1997-09-04
JPH11504609A (ja) 1999-04-27
MX9708069A (es) 1998-07-31

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