FR2442456A1 - Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt - Google Patents

Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt

Info

Publication number
FR2442456A1
FR2442456A1 FR7833404A FR7833404A FR2442456A1 FR 2442456 A1 FR2442456 A1 FR 2442456A1 FR 7833404 A FR7833404 A FR 7833404A FR 7833404 A FR7833404 A FR 7833404A FR 2442456 A1 FR2442456 A1 FR 2442456A1
Authority
FR
France
Prior art keywords
conveyor belt
belt
reflective surfaces
object detector
mail sorting
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.)
Granted
Application number
FR7833404A
Other languages
French (fr)
Other versions
FR2442456B1 (en
Inventor
Alain Rene Binet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TLD Group SAS
Original Assignee
TLD Group SAS
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 TLD Group SAS filed Critical TLD Group SAS
Priority to FR7833404A priority Critical patent/FR2442456A1/en
Priority to DK495679A priority patent/DK147835C/en
Priority to EP19790400915 priority patent/EP0012076B1/en
Priority to DE7979400915T priority patent/DE2963955D1/en
Priority to AT79400915T priority patent/ATE1725T1/en
Publication of FR2442456A1 publication Critical patent/FR2442456A1/en
Application granted granted Critical
Publication of FR2442456B1 publication Critical patent/FR2442456B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors

Abstract

The detector comprises a photo cell (4) and two spaced reflective surfaces (5, 6) facing the photo cell (4), located one on either side of the conveyor belt (1). The top edge of the surface (6) nearest the photo cell (4) is aligned with the top surface of the conveyor belt (1). The other surface (5) is approx. spherical and curves upwards from the level of the conveyor belt (1). The surface (6) nearest to the photocell (4) may be less reflective than that on the opposite side of the conveyor belt (1) and it may be divided into two, to provide a scanning aperture. The detector is used to distinguish between parcels and letters passing along a conveyor belt, for automatic sorting.
FR7833404A 1978-11-27 1978-11-27 Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt Granted FR2442456A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7833404A FR2442456A1 (en) 1978-11-27 1978-11-27 Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt
DK495679A DK147835C (en) 1978-11-27 1979-11-22 ELECTRO-OPTICAL ARRANGEMENT FOR THE DETECTION OF OBJECTS ON A TRANSPORT TAPE
EP19790400915 EP0012076B1 (en) 1978-11-27 1979-11-26 Device for detecting the presence of objects on a conveyor belt
DE7979400915T DE2963955D1 (en) 1978-11-27 1979-11-26 Device for detecting the presence of objects on a conveyor belt
AT79400915T ATE1725T1 (en) 1978-11-27 1979-11-26 DEVICE FOR DETECTING OBJECTS ON A CONVEYOR BELT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833404A FR2442456A1 (en) 1978-11-27 1978-11-27 Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt

Publications (2)

Publication Number Publication Date
FR2442456A1 true FR2442456A1 (en) 1980-06-20
FR2442456B1 FR2442456B1 (en) 1981-12-18

Family

ID=9215381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833404A Granted FR2442456A1 (en) 1978-11-27 1978-11-27 Irregular object detector adjacent conveyor belt - is for automatic mail sorting and comprises photodetector and reflective surfaces either side of belt

Country Status (1)

Country Link
FR (1) FR2442456A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360654A (en) * 1964-05-06 1967-12-26 Sick Erwin Light barrier for preventing machine accidents including fail safe device
US3665202A (en) * 1969-06-02 1972-05-23 British Steel Corp Apparatus for detecting objects
GB1464466A (en) * 1974-04-30 1977-02-16 Post Office Scanner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360654A (en) * 1964-05-06 1967-12-26 Sick Erwin Light barrier for preventing machine accidents including fail safe device
US3665202A (en) * 1969-06-02 1972-05-23 British Steel Corp Apparatus for detecting objects
GB1464466A (en) * 1974-04-30 1977-02-16 Post Office Scanner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/65 *

Also Published As

Publication number Publication date
FR2442456B1 (en) 1981-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse