# US 11,440,747 B2 · Conveyor with ejector

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- Number: US 11,440,747 B2
- Document ID: US11440747B2
- Status: Granted
- Kind: B2
- Application number: 17/171,441
- Filed: 2021-02-09
- Published: 2021-08-12
- Granted: 2022-09-13
- Earliest claimed: 2020-02-10
- Assignees: Wipotec GmbH
- Applicants: Wipotec GmbH
- Inventors: Markus Jochen Walter; Lukas Müller
- Web page: https://patentgrep.com/patent/US11440747B2

## CPC

- B65G 47/256: removing incorrectly orientated articles
- B65G 47/82: Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels {(means for pushing glass articles onto a conveyor C03B9/453)}
- B65G 43/08: Control devices operated by article or material being fed, conveyed or discharged {(and controlling the discharging devices B65G47/42)}
- B65G 47/525: {using fluid jets}
- B65G 2203/0233: Position of the article
- B65G 2203/041: Camera
- B65G 2203/044: Optical
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)

## Abstract

A belt conveyor is configured for conveying products in a conveying direction and defines a width extending in a transverse direction orthogonal to the conveying direction, and a height direction orthogonal to the conveying and transverse directions. An ejector is fixed to the belt conveyor and acts in the transverse direction for sorting out/discharging products. The ejector has an end region which faces the product to be sorted out, and has a base body mounted in a base position on the belt conveyor by means of a holder. The basic position of the base body can be adjusted by means of an adjusting device of the holder in the transverse direction within an adjustment path so that the end area of the non-actuated ejector in the transverse direction can protrude across the belt conveyor width by at least half of that width, or more.

## Claims

### Claim 1

An apparatus including:
(a) a conveyor defining a transport direction, a conveyor width extending in a transverse direction orthogonal to the transport direction, and a height direction orthogonal to the transport direction and transverse direction;
(b) a mounting bracket connected to the conveyor;
(c) an ejector operable for acting in the transverse direction for ejecting products from the conveyor, the ejector having an end region facing in the transverse direction and having a base body supported in a base position relative to the conveyor by the mounting bracket, the base body having a length in the transverse direction which is less than the conveyor width;
(d) an adjusting device included in the mounting bracket, the adjusting device being operable for adjusting the base position of the base body in the transverse direction within an adjustment range between a minimum extension position and a maximum extension position, wherein, when the base position of the base body is in the maximum extension position and the ejector is in an unactuated state, the end region projects across the conveyor in the transverse direction by at least half of the conveyor width; and
(e) wherein the adjusting device includes at least one hollow guide cylinder extending in the transverse direction and having an air blast nozzle facing in the transverse direction.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein, when the base position of the base body is in the maximum extension position and the ejector is in the unactuated state, the end region projects across the conveyor in the transverse direction by at least two-thirds of the conveyor width.

### Claim 3 (depends on 1)

The apparatus of claim 1 wherein, when the base position of the base body is in the maximum extension position and the ejector is in an unactuated state, the end region projects across the entire conveyor width.

### Claim 4 (depends on 1)

The apparatus of claim 1 wherein the adjusting device includes a first stage having a first adjustment length and a second stage having a second adjustment length wherein the first adjustment length and the second adjustment length add together to the adjustment range.

### Claim 5 (depends on 1)

The apparatus of claim 1 wherein the adjusting device includes:
(a) a first adjustment element positionable along a first adjusting path having a first adjustment length; and
(b) a second adjustment element positionable along a second adjusting path having a second adjustment length, the second adjusting path running parallel to the first adjusting path so that the first adjustment length and second adjustment length add together to form the adjustment range.

### Claim 6 (depends on 1)

The apparatus of claim 1 wherein the ejector comprises a pusher, a stroke sorter, or an air blast device.

### Claim 7 (depends on 1)

The apparatus of claim 1 wherein the ejector comprises a short stroke pusher.

### Claim 8 (depends on 7)

The apparatus of claim 7 wherein the short stroke pusher has a design stroke that maximally does not exceed three-fourths of a width dimension of a transport surface of the conveyor in the transverse direction.

### Claim 9 (depends on 1)

The apparatus of claim 1 wherein the adjusting device includes a position device operable for quantifying the base position along the adjustment range.

### Claim 10 (depends on 9)

The apparatus of claim 9 further including a control device for automatically setting, checking, determining, or displaying the base position along the adjustment range.

### Claim 11 (depends on 1)

The apparatus of claim 1 further including a control arrangement operable to move the base position of the base body from a first location along the adjustment range to a second location along the adjustment range in response to a change of product input.

### Claim 12 (depends on 11)

The apparatus of claim 11 wherein the control arrangement includes a sensor device for detecting a product position on the conveyor and the control arrangement moves the base position of the base body from the first location to the second location in dependence on the product position detected by the sensor device.

### Claim 13

An apparatus for use with a conveyor defining a transport direction, a conveyor width extending in a transverse direction orthogonal to the transport direction, and a height direction orthogonal to the transport direction and transverse direction, the apparatus including:
(a) a mounting bracket adapted to be connected on the conveyor in a bracket position;
(b) an ejector having a base body connected to the mounting bracket and residing in a base position relative to the conveyor when the mounting bracket is connected to the conveyor in the bracket position, the ejector in the base position having an end region facing in the transverse direction and being operable for acting in the transverse direction for ejecting products from the conveyor, the base body having a length in the transverse direction which is less than the conveyor width;
(c) an adjusting device included in the mounting bracket, wherein when the mounting bracket is in the bracket position the adjusting device is operable for adjusting the base position of the base body in the transverse direction within an adjustment range between a minimum extension position and a maximum extension position, wherein, when the base position of the base body is in the maximum extension position and the ejector is in an unactuated state, the end region projects across the conveyor in the transverse direction by at least half of the conveyor width; and
(d) wherein the adjusting device includes at least one hollow guide cylinder extending in the transverse direction and having an air blast nozzle facing in the transverse direction.

### Claim 14 (depends on 13)

The apparatus of claim 13 wherein, when the mounting bracket is in the bracket position, the base position of the base body is in the maximum extension position, and the ejector is in the unactuated state, the end region projects across the conveyor in the transverse direction by at least two-thirds of the conveyor width.

### Claim 15 (depends on 13)

The apparatus of claim 13 wherein, when the mounting bracket is in the bracket position, the base position of the base body is in the maximum extension position, and the ejector is in an unactuated state, the end region projects across the entire conveyor width.

### Claim 16 (depends on 13)

The apparatus of claim 13 wherein the adjusting device includes:
(a) a first adjustment element positionable along a first adjusting path having a first adjustment length; and
(b) a second adjustment element positionable along a second adjusting path having a second adjustment length, the second adjusting path running parallel to the first adjusting path so that the first adjustment length and second adjustment length add together to form the adjustment range.

### Claim 17 (depends on 13)

The apparatus of claim 13 wherein the adjusting device includes a position device operable for quantifying the base position along the adjustment range.

### Claim 18

An apparatus including:
(a) a conveyor defining a transport direction, a conveyor width extending in a transverse direction orthogonal to the transport direction, and a height direction orthogonal to the transport direction and transverse direction;
(b) a mounting bracket connected to the conveyor;
(c) an ejector operable for acting in the transverse direction for ejecting products from the conveyor, the ejector having an end region facing in the transverse direction and having a base body supported in a base position relative to the conveyor by the mounting bracket, the base body having a length in the transverse direction which is less than the conveyor width;
(d) an adjusting device included in the mounting bracket, the adjusting device being operable for adjusting the base position of the base body in the transverse direction within an adjustment range between a minimum extension position and a maximum extension position, wherein, when the base position of the base body is in the maximum extension position and the ejector is in an unactuated state, the end region projects across the conveyor in the transverse direction by at least half of the conveyor width; and
(e) a control arrangement operable to move the base position of the base body from a first location along the adjustment range to a second location along the adjustment range in response to a change of product input, wherein the control arrangement includes a sensor device for detecting a product position on the conveyor and the control arrangement moves the base position of the base body from the first location to the second location in dependence on the product position detected by the sensor device.
