DE2500009A1 - Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure - Google Patents

Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure

Info

Publication number
DE2500009A1
DE2500009A1 DE19752500009 DE2500009A DE2500009A1 DE 2500009 A1 DE2500009 A1 DE 2500009A1 DE 19752500009 DE19752500009 DE 19752500009 DE 2500009 A DE2500009 A DE 2500009A DE 2500009 A1 DE2500009 A1 DE 2500009A1
Authority
DE
Germany
Prior art keywords
roller
black
board
blackboard
cleaning device
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.)
Pending
Application number
DE19752500009
Other languages
German (de)
Inventor
Georg Reif
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752500009 priority Critical patent/DE2500009A1/en
Publication of DE2500009A1 publication Critical patent/DE2500009A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices

Landscapes

  • Cleaning In General (AREA)

Abstract

A wall mounted blackboard washing or cleaning device has sets of toothed racks mounted above and below the blackboard which engage into open wheels mounted on the vertical roller type washing and cleaning device. A spring is used to ensure a constant light contact pressure between the cleaning roller and the blackboard surface cleaning rubber strip. The cleaning roller supplies water to the blackboard and the rubber strip following closely behind it scrapes the excess water off into a trough below the device. On its return to start travel of the board, the spring tension is released thus ensuring that the chalk laden roller does not contact the board surface. Water sprays then clean the roller.

Description

WANDTAFEL- s CHWAMMWA LZ Zweck: Um die lästige Wischarbeit mit Handschwamm und Wasserschüssel in den deutschen Klassenzimmern endgültig zu ersetzen, wurde von mir die Wandtafel - Schwammwalze erfunden.WALL BOARD- s CHWAMMWA LZ Purpose: To remove the annoying wiping work with a hand sponge and to finally replace water bowls in German classrooms I invented the blackboard - the sponge roller.

Funktionsbeschreibung: bber einer tafel wird eine Zahnstange aus Kunststoff montiert.Functional description: A rack made of plastic is placed over a board assembled.

Durch das Abwälzen von Zahnräder auf dieser Zahnstange kommt die Drehung zustande, die von der Aufwickelwalze über einen Zahnriemen auf die Wischwalze übertragen wird.The rotation comes from the rolling of gears on this rack which are transferred from the take-up roller to the wiper roller via a toothed belt will.

Die AufwicRelwalze wird in der oberen und unteren Führungsschiene gefahrt und ist in @adialwälzlager gelagert.The take-up roller is located in the upper and lower guide rails driven and is stored in @ adialwälzlager.

Die Schwammwalze ist mit einem oberen und unteren, schwenkbaren Arm mit der Aufwickelwalze verbunden. Der Abstand zwischen beiden Walzen-Mitten bleibt konstant.The sponge roller has an upper and a lower pivotable arm connected to the take-up roller. The distance between the two roller centers remains constant.

iine Feder sorgt beim Wischvorgang für einen leichten Anpreßdruck der Schwammwalze an die Tafel. Reim Wischvorgang wickelt sich der Schwamm von der Schwammwalze auf die Aufwickelwalze. Nach der Schwammwalze streift ein tiummiabstreifer das Wasser, das an der Tafel vertleibt in eine Rinne.A spring ensures a slight contact pressure during the wiping process the sponge roller on the blackboard. During the wiping process, the sponge wraps itself off the Sponge roller on the take-up roller. A tiummi scraper brushes behind the sponge roller the water that is left on the table in a gutter.

beim Zurückführen wickelt sich der Schwamm zwangsläusig wieder auf die Schwammwalze, hierbei drückt aber die weder nicht mehr auf die Schwammwalze, und der Schwamm, der mit Kreideteilchen behaftet ist, berührt nicht mehr die Tafel.when returning, the sponge inevitably winds up again the sponge roller, but here it no longer presses on the sponge roller, and the sponge, which is covered with chalk particles, no longer touches the blackboard.

Die Reinigung des Schwammes erfolgt durch Aufdrehen eines Durchgangs-@ahns. Das Wasser wird über Düsen auf die obere Stirnseite der Schwammwalze gespritzt.The sponge is cleaned by turning on a through auger. The water is sprayed through nozzles onto the upper face of the sponge roller.

Ein Blechgehäuse ist starr in der Endstellung montiert und leitet das Spritzwasser über eine Auffangwanne und iinhon ab.A sheet metal housing is rigidly mounted in the end position and conducts the splash water over a collecting basin and iinhon.

W A N D T A F E L - S C H W A M M W A L Z Automatisierung: Ein Knopfdruck schaltet einen Getriebemotor für den Wischvorgang ein.W A N D T A F E L - S C H W A M M W A L Z Automation: One push of a button switches on a gear motor for the wiping process.

Die Walze läuft vor. Ein Endschalter bolt über einen Wechselschütz den Getriebemotor um, entspannt die Plattfeder und die Schwammwalze läuft zurück.The roller moves forward. A limit switch bolt via a changeover contactor reverses the gear motor, relaxes the flat spring and the sponge roller runs back.

Nach erreichen der Ausgangsstellung wird der rotor abgeschaltet (und umgepolt für den nächsten Arbeitsgang). Zugleich wird ein magnetventil betätigt und der schwamm nach einer eingestellten zeit über ein Zeitrelais ausgespült.After reaching the starting position, the rotor is switched off (and reversed for the next step). A solenoid valve is operated at the same time and the sponge is rinsed out via a time relay after a set time.

Claims (1)

WANDTAFEL - SCHWAMMWALZE WALL BOARD - SPONGE ROLLER Patentanspruch Unter Patentschutz soll die beschriebene Anordnung von einer Schwammwalze an eine Wandtafel gestellt werden. Patent claim The described arrangement is to be protected by patent be placed on a blackboard by a sponge roller. L e e r s e i t eL e r s e i t e
DE19752500009 1975-01-02 1975-01-02 Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure Pending DE2500009A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752500009 DE2500009A1 (en) 1975-01-02 1975-01-02 Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752500009 DE2500009A1 (en) 1975-01-02 1975-01-02 Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure

Publications (1)

Publication Number Publication Date
DE2500009A1 true DE2500009A1 (en) 1976-07-15

Family

ID=5935878

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752500009 Pending DE2500009A1 (en) 1975-01-02 1975-01-02 Black board washing and cleaning device with rotating roller - horizontally moving roller traverses black-board surface under constant light pressure

Country Status (1)

Country Link
DE (1) DE2500009A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016169294A1 (en) * 2015-04-23 2016-10-27 中国矿业大学 Scraper conveyor chain tensioning device having sweeping function
CN108162638A (en) * 2017-12-29 2018-06-15 范科晨 One kind is exempted to wipe disposable teacher's blackboard

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016169294A1 (en) * 2015-04-23 2016-10-27 中国矿业大学 Scraper conveyor chain tensioning device having sweeping function
US10173846B2 (en) 2015-04-23 2019-01-08 China University Of Mining And Technology Scraper conveyor chain tensioning device having sweeping function
CN108162638A (en) * 2017-12-29 2018-06-15 范科晨 One kind is exempted to wipe disposable teacher's blackboard

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