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DE29916797U1 - Electrically conductive PU wheel - Google Patents

Electrically conductive PU wheel

Info

Publication number
DE29916797U1
DE29916797U1 DE29916797U DE29916797U DE29916797U1 DE 29916797 U1 DE29916797 U1 DE 29916797U1 DE 29916797 U DE29916797 U DE 29916797U DE 29916797 U DE29916797 U DE 29916797U DE 29916797 U1 DE29916797 U1 DE 29916797U1
Authority
DE
Germany
Prior art keywords
electrically conductive
polyurethane
springs
wheels
making
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 - Lifetime
Application number
DE29916797U
Other languages
German (de)
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.)
POETZSCHER MANFRED
Original Assignee
POETZSCHER MANFRED
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 POETZSCHER MANFRED filed Critical POETZSCHER MANFRED
Priority to DE29916797U priority Critical patent/DE29916797U1/en
Publication of DE29916797U1 publication Critical patent/DE29916797U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C19/08—Electric-charge-dissipating arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00—Non-inflatable or solid tyres
    • B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
    • B60C7/14—Non-inflatable or solid tyres characterised by means for increasing resiliency using springs
    • B60C7/16—Non-inflatable or solid tyres characterised by means for increasing resiliency using springs of helical or flat coil form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D2030/526—Unvulcanised treads, e.g. on used tyres; Retreading the tread comprising means for discharging the electrostatic charge, e.g. conductive elements or portions having conductivity higher than the tread rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/90—Providing or changing
    • B60B2900/921—Conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Description

AnmBlduftg: elektrisch leitfahiges R*dOO»J 1.19.06.34Note: electrically conductive R*dOO»J 1.19.06.34

Bezeichnung: elektrisch leitfähiges PU- RadDescription: electrically conductive PU wheel Beschreibung:Description:

Räder haben als Nichtleiter einen elektrischen Oberflächenwiderstand von >101} &OHgr;.. Auf nicht leitenden Böden kann eine elektrostatische Aufladung eintreten. Ohne besondere Schutzmaßnahmen ist der Betrieb in Ex-geschützten Bereichen nicht zulässig. Eine Schutzmaßnahme ist die Verwendung von antistatischer Bereifung mit einem Widerstand <10 &OHgr;.
Auch empfindliche elektronische Güter müssen auf Rädern mit antistatischer Bereifung transportiert werden. As non-conductors, wheels have an electrical surface resistance of >10 1} Ω. Electrostatic charging can occur on non-conductive floors. Operation in explosion-proof areas is not permitted without special protective measures. One protective measure is the use of antistatic tires with a resistance of <10 Ω.
Even sensitive electronic goods must be transported on wheels with antistatic tires.

Zur Zeit gibt es antistatische Vollgummi-Bereifung und antistatische Polyamid-Räder.Currently there are antistatic solid rubber tires and antistatic polyamide wheels.

Räder mit PU-Reifen haben eine ca. dreimal höhere Tragkraft als Vollgummi Räder. Und somit ist es erforderlich eine preiswerte Lösung fürWheels with PU tires have a load capacity that is approximately three times higher than solid rubber wheels. And therefore it is necessary to find an inexpensive solution for elektrisch leitfähige electrically conductive PU-Räder zu haben. Die auf dem Markt befindlichen PV-Räder haben eine eingegossene Rundbürste aus Messing. Das bedeutet, daß die Form zum Gießen des PU ca. 15 mm größer sein muß als der vorgesehene Raddurchmesser, um das flüssige PU, vorbei an der Bürste, in die Form füllen zu können. Bei dem anschließenden Abdrehen bis auf den Durchmesser der Bürste, zum Erreichen der Leitfähigkeit, geht dieses Material verloren. PU wheels. The PV wheels on the market have a cast-in round brush made of brass. This means that the mold for casting the PU must be about 15 mm larger than the intended wheel diameter in order to be able to fill the liquid PU into the mold, past the brush. This material is lost during the subsequent turning down to the diameter of the brush in order to achieve conductivity.

Im Gegensatz In contrast zu den PU- Rädern, die es auf dem Markt gibt, braucht man, bei der hier vorgeschlagenen Fertigungsmethode / Ausführungen, nur ca. 0,5 mm abdrehen, damit die Federn metallisch blank und leitend werden.Compared to the PU wheels that are available on the market, with the manufacturing method/design suggested here, you only need to turn off about 0.5 mm so that the springs become metallically bright and conductive.

Figur 1 und Figur 2:Figure 1 and Figure 2:

1.1. Federn, vorzugsweise aus Federbronze, mit Flach- oder Rundprofil, die nebeneinander auf der Radbreite liegen (auf Walzen mehrfach neben anderen), einmal nach links und einmal nach rechts gebogen.Springs, preferably made of spring bronze, with flat or round profile, lying next to each other across the width of the wheel (on rollers several times next to each other), bent once to the left and once to the right.

2. PU- (Polyurethan) Belag wird (zusammen mit den Federn) aufgegossen.2. PU (polyurethane) coating is poured on (together with the springs).

3. Elektrisch leitfähige Felge (Radkörper).3. Electrically conductive rim (wheel body).

4. Bohrung für die Lagerung im (elektrisch leitfähigen) Radkörper.4. Hole for the bearing in the (electrically conductive) wheel center.

5. Sackbohrungen für die Federn. 5. Blind holes for the springs.

6. Sackbohrungen für die Schraubenfedern.6. Blind holes for the coil springs.

7. Schraubenfedern, das Federmaterial ist vorzugsweise Federbronze. Die Federn sollten einen großen Windungsdurchmesser und eine relativ hohe Windungszahl haben.7. Coil springs, the spring material is preferably spring bronze. The springs should have a large coil diameter and a relatively high number of coils.

Claims (5)

1. Elektrisch leitfähig machen von Polyurethan-Rädern oder Polyurethan- Walzen, dadurch gekennzeichnet, daß man metallische Federn 1 und 7 an einer elektrisch leitfähige Felge 3 so montiert (mehrfach), daß sie festen Sitz und metallischen Kontakt zur Felge haben und auch behalten. 1. Making polyurethane wheels or polyurethane rollers electrically conductive, characterized in that metallic springs 1 and 7 are mounted (multiple times) on an electrically conductive rim 3 in such a way that they have and also maintain a firm fit and metallic contact with the rim. 2. Elektrisch leitfähig machen von Polyurethan-Rädern nach Anspruch 1, dadurch gekennzeichnet, daß man die Felge zusammen mit den montierten Federn in die Gießform legt und das Polyurethan vergießt/aufgießt. 2. Making polyurethane wheels electrically conductive according to claim 1, characterized in that the rim is placed in the mold together with the mounted springs and the polyurethane is poured/poured on. 3. Elektrisch leitfähig machen von fertig gegossenen Polyurethan-Rädern und Walzen. Dadurch gekennzeichnet, daß man radial in dem Belag, bis auf den Metallkörper, Bohrungen im Durchmesser der Schraubendruckfedern 7 bringt. Hier wird im Zentrum ein kleineres Loch gebohrt. Dann schraubt man die Schraubendruckfedern mit einer Schraube nach DIN 7513 Form F an. Hinterher schließt man die Löcher mit Polyurethan-Schaum. 3. Making finished cast polyurethane wheels and rollers electrically conductive. This is characterized by drilling holes in the diameter of the helical compression springs 7 radially in the coating, down to the metal body. A smaller hole is drilled in the center. The helical compression springs are then screwed on with a screw in accordance with DIN 7513 Form F. The holes are then closed with polyurethane foam. 4. Elektrisch leitfähig machen von Polyurethan-Rädern oder Polyurethan- Walzen nach Anspruch 1, Anspruch 2 und Anspruch 3, dadurch gekennzeichnet, daß man die Federn 1 oder Druckfedern 7 mehrfach am Umfang des Radkörpers anordnet. 4. Making polyurethane wheels or polyurethane rollers electrically conductive according to claim 1, claim 2 and claim 3, characterized in that the springs 1 or compression springs 7 are arranged several times on the circumference of the wheel body. 5. Elektrisch leitfähig machen von Polyurethan-Rädern oder Polyurethan- Walzen nach Anspruch 1, Anspruch 2 und Ansoruch 3, dadurch gekennzeichnet, daß man die Federn 1 oder die Druckfedern 7, ein-, zwei- oder mehrfach, auf der Radbreite anordnet. 5. Making polyurethane wheels or polyurethane rollers electrically conductive according to claim 1, claim 2 and claim 3 , characterized in that the springs 1 or the compression springs 7 are arranged one, two or more times across the width of the wheel.
DE29916797U 1999-09-20 1999-09-20 Electrically conductive PU wheel Expired - Lifetime DE29916797U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29916797U DE29916797U1 (en) 1999-09-20 1999-09-20 Electrically conductive PU wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29916797U DE29916797U1 (en) 1999-09-20 1999-09-20 Electrically conductive PU wheel

Publications (1)

Publication Number Publication Date
DE29916797U1 true DE29916797U1 (en) 1999-12-30

Family

ID=8079354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29916797U Expired - Lifetime DE29916797U1 (en) 1999-09-20 1999-09-20 Electrically conductive PU wheel

Country Status (1)

Country Link
DE (1) DE29916797U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7406989B1 (en) * 2006-03-20 2008-08-05 P & H Casters Co., Inc. Cart wheel with static dissipative mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797545A (en) 1929-08-06 1931-03-24 Glenn L Martin Co Vehicle wheel
FR1279913A (en) 1959-06-29 1961-12-29 Electrical connection device between a vehicle and the ground
US3158782A (en) 1959-11-16 1964-11-24 Inv S Finance Corp Means for eliminating static charges from vehicles
DE1992389U (en) 1968-06-04 1968-08-22 Dipl-Ing Franz Morgenstern 8000 München Motor vehicle with a device for preventing the electric charging of the rubber-tired motor vehicle
DE3024367C2 (en) 1979-06-29 1988-03-24 Michelin & Cie. (Compagnie Generale Des Etablissements Michelin), Clermont-Ferrand, Fr
DE3729822A1 (en) 1987-09-05 1989-03-23 Continental Ag Polyurethane rotational body, and process for the production thereof
US5605657A (en) 1992-05-14 1997-02-25 Uniroyal Chemical Company, Inc. Industrial solid tires and method of manufacture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797545A (en) 1929-08-06 1931-03-24 Glenn L Martin Co Vehicle wheel
FR1279913A (en) 1959-06-29 1961-12-29 Electrical connection device between a vehicle and the ground
US3158782A (en) 1959-11-16 1964-11-24 Inv S Finance Corp Means for eliminating static charges from vehicles
DE1992389U (en) 1968-06-04 1968-08-22 Dipl-Ing Franz Morgenstern 8000 München Motor vehicle with a device for preventing the electric charging of the rubber-tired motor vehicle
DE3024367C2 (en) 1979-06-29 1988-03-24 Michelin & Cie. (Compagnie Generale Des Etablissements Michelin), Clermont-Ferrand, Fr
DE3729822A1 (en) 1987-09-05 1989-03-23 Continental Ag Polyurethane rotational body, and process for the production thereof
US5605657A (en) 1992-05-14 1997-02-25 Uniroyal Chemical Company, Inc. Industrial solid tires and method of manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7406989B1 (en) * 2006-03-20 2008-08-05 P & H Casters Co., Inc. Cart wheel with static dissipative mechanism

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20000203

R021 Search request validly filed

Effective date: 19991115

R163 Identified publications notified

Effective date: 20000413

R156 Lapse of ip right after 3 years

Effective date: 20030401