IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0080144
(2008-04-01)
|
등록번호 |
US-8162565
(2012-04-24)
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발명자
/ 주소 |
- Speers, Leonard E.
- Toohig, Terrence M.
|
출원인 / 주소 |
- Volvo Construction Equipment AB
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대리인 / 주소 |
Michael Best & Friedrich LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
11 |
초록
▼
A material anti-segregation device is for a paving vehicle including a tractor, a screed for forming a mat of paving material on a base surface, and an auger. The anti-segregation device includes a plurality of flexible, elongated barrier members each coupled with the tractor and collectively defini
A material anti-segregation device is for a paving vehicle including a tractor, a screed for forming a mat of paving material on a base surface, and an auger. The anti-segregation device includes a plurality of flexible, elongated barrier members each coupled with the tractor and collectively defining a curtain. The curtain is configured to generally retain paving material between the curtain and the screed. A plurality of couplers are each configured to connect at least a portion of a separate one of the barrier members with the tractor. Each coupler alternatively disconnects the barrier member or portion from the tractor when tension in the connected member exceeds a predetermined value so as to prevent damage to the tractor. As each barrier member is connected with either a portion or component of the tractor, the predetermined tension value is less than a failure limit of the tractor portion or component.
대표청구항
▼
1. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexib
1. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexible, elongated barrier members each couplable with the tractor to collectively define a curtain, the curtain being configured to generally retain paving material between the curtain and the screed; anda plurality of reusable couplers, each coupler, in a first configuration, connecting at least a portion of a separate one of the barrier members with the tractor and, in a second configuration, disconnecting the at least a portion of the one barrier member from the tractor when tension in the connected member exceeds a predetermined value so as to prevent damage to the tractor, each coupler being bendable from the first configuration toward the second configuration, each coupler thereafter being bendable from the second configuration toward the first configuration to connect at least a portion of a separate one of the barrier members with the tractor. 2. The anti-segregation device as recited in claim 1 wherein each one of the barrier members is connected with one of a portion of the tractor and a component of the tractor and the predetermined tension value is less than a failure limit of the one of the tractor portion and tractor component. 3. The anti-segregation device as recited in claim 1 wherein each barrier member has a first end connected with the tractor and a second, free end generally disposeable upon the base surface and each coupler is configured to disconnect from the at least a portion of the one barrier member when the barrier member second end is held generally stationary with respect to the base surface during movement of the tractor. 4. The anti-segregation device as recited in claim 1 wherein each barrier member has a first, upper end and a second, lower end, the second end being disposeable generally upon the base surface, and one of: each coupler is mounted on the tractor and configured to releasably engage with the upper end of the connected barrier member; andeach barrier member includes upper and lower portions, the upper portion providing the retainer first end, the first end being attached to the tractor, the lower portion providing the retainer second end, and each coupler is configured to releasably connect the lower portion of a separate one of the barrier members with the upper portion of the barrier member. 5. The anti-segregation device as recited in claim 1 wherein each coupler is configured to bend between first and second configurations to disconnect the at least one barrier member from the tractor. 6. The anti-segregation device as recited in claim 1 wherein each barrier member includes a base section and two chain sections each attached to the base section, each one of the two chain sections extending generally vertically and generally parallel to the other one of the chain sections, and each coupler is engaged with the base section of a separate one of the barrier members. 7. The anti-segregation device as recited in claim 1 wherein each barrier member includes at least one chain with a plurality of connected links. 8. The anti-segregation device as recited in claim 1 wherein each coupler is configured to release the barrier member connected with the coupler separately from each other barrier member. 9. The anti-segregation device as recited in claim 1 further comprising a base plate connected with the tractor, each coupler being one of mounted to the base plate and integrally formed with the base plate. 10. The anti-segregation device as recited in claim 1 wherein each coupler includes a bendable tab configured to engage with a separate one of the barrier members and to deflect between a first configuration in which the coupler retains the barrier member connected with the tractor and a second configuration in which the barrier member is removable from the tab so as to disconnect from the tractor, the tab being configured to deflect from the first configuration toward the second configuration when tension in the barrier member exceeds the predetermined value. 11. The anti-segregation device as recited in claim 10 wherein each barrier member includes an opening and each tab has an elongated body with first and second ends, the tab body being configured to extend through the opening of the engaged barrier member, to generally form a hook in the tab first configuration such that the body first end is located at least generally proximal to the body second end, and to generally bend toward a flattened form as the body first end displaces away from the second end when deflecting from the first configuration to the second configuration, the barrier member being displaceable over the tab first end in a direction generally away from the tab second end when the tab body is disposed in the tab second configuration so as to withdraw the tab body from the barrier member opening and thereby disconnect the barrier member from the tractor. 12. The anti-segregation device as recited in claim 11 wherein the barrier member is displaceable over the tab first end in a direction generally toward the tab second end when the tab body is disposed in the tab second configuration so as to insert the tab body into the barrier member opening, the tab body being deflectable from the second configuration toward the first configuration when the tab body is disposed within the barrier member opening so as to connect the barrier member with the tractor. 13. The anti-segregation device as recited in claim 10 wherein each coupler tab is deflectable toward the first configuration to connect a barrier member to the tractor. 14. The anti-segregation device as recited in claim 10 further comprising a generally elongated base plate mounted to the tractor, each coupler tab being integrally formed with the base plate. 15. The anti-segregation device as recited in claim 14 wherein the base plate extends generally laterally along a rear end of the tractor and the plurality of couplers are spaced apart laterally on the base plate. 16. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexible, elongated barrier members each couplable with the tractor to collectively define a curtain, the curtain being configured to generally retain paving material between the curtain and the screed; anda plurality of couplers, each coupler being configured to connect at least a portion of a separate one of the barrier members with the tractor and to disconnect the at least a portion of the one barrier member from the tractor when tension in the connected member exceeds a predetermined value so as to prevent damage to the tractor, wherein each coupler includes a tab;wherein each barrier member includes an opening and each tab has an elongated body with first and second ends, the tab body being configured to extend through the opening of the engaged barrier member, to generally form a hook in a tab first configuration such that the body first end is located at least generally proximal to the body second end, and to be generally bendable toward a flattened form as the body first end displaces away from the second end when deflecting from the first configuration to a second configuration, the barrier member being displaceable over the tab first end in a direction generally away from the tab second end when the tab body is disposed in the tab second configuration so as to withdraw the tab body from the barrier member opening and thereby disconnect the barrier member from the tractor;further comprising a generally elongated base plate mounted to the tractor, each coupler tab being integrally formed with the base plate;wherein the base plate is generally flat with generally parallel front and rear surfaces and a laterally extending edge and each tab body is formed as a generally flat bar having a first end attached to the plate edge and a second end spaced outwardly from the plate edge, the bar extending outwardly from the plate edge and generally parallel with the plate surfaces in an initial position, each tab bar being deflectable from the initial position to the first configuration to connect the engaged one of the barrier members with the tractor. 17. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexible, elongated barrier members each couplable with the tractor to collectively define a curtain, the curtain being configured to generally retain paving material between the curtain and the screed; anda plurality of reusable couplers, each coupler including a bendable tab engageable with a separate one of the barrier members and deflectable between a first configuration, in which the coupler retains the barrier member connected with the tractor, and a second configuration, in which the barrier member is removable from the tab so as to disconnect from the tractor, the tab being deflectable from the first configuration toward the second configuration when tension in the barrier member exceeds a predetermined value, the tab thereafter being deflectable toward the first configuration to retain the barrier member connected to the tractor. 18. The anti-segregation device as recited in claim 17 wherein: each barrier member includes an opening and each tab has an elongated body with first and second ends, the tab body being configured to extend through the opening of the engaged barrier member, to generally form a hook in the tab first configuration such that the body first end is located at least generally proximal to the body second end, and to generally bend toward a flattened form as the body first end displaces away from the second end when deflecting from the first configuration to the second configuration; andthe barrier member is displaceable over the tab first end in a direction generally away from the tab second end when the tab body is disposed in the tab second configuration so as to withdraw the tab body from the barrier member opening and thereby disconnect the barrier member from the tractor and is alternatively displaceable over the tab first end in a direction generally toward the tab second end when the tab body is disposed in the tab second configuration so as to insert the tab body into the barrier member opening, the tab body being deflectable from the second configuration toward the first configuration when the tab body is disposed within the barrier member opening so as to connect the barrier member with the tractor. 19. The anti-segregation device as recited in claim 17 wherein each barrier member includes a base section and two chain sections each attached to the base section, each one of the two chain sections extending generally vertically and generally parallel to the other one of the chain sections, and each coupler is engaged with the base section of a separate one of the barrier members. 20. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexible, elongated barrier members each couplable with the tractor to collectively define a curtain, the curtain being configured to generally retain paving material between the curtain and the screed, each barrier member having a first end connected with the tractor and as second, free end disposeable generally upon the base surface; anda plurality of reusable couplers, each coupler, in a first configuration, connecting at least a portion of a separate one of the barrier members with the tractor and, in a second configuration, allowing the at least a portion of the one barrier member to disconnect from the tractor when the barrier member second end is held generally stationary with respect to the base surface during movement of the tractor, each coupler being bendable from the first configuration toward the second configuration to enable the separate one of the barrier members to disconnect from the tractor, each coupler thereafter being bendable from the second configuration toward the first configuration to connect at least a portion of a separate one of the barrier members with the tractor. 21. A material anti-segregation device for a paving vehicle, the vehicle including a tractor, a screed towed from the tractor for forming a mat of paving material on a base surface, and an auger disposed between the tractor and the screed, the anti-segregation device comprising: a plurality of flexible, elongated barrier members each coupled with the tractor and collectively defining a curtain, the curtain being configured to generally retain paving material between the curtain and the screed;a plurality of reusable couplers, each coupler including a bendable tab engaging with a separate one of the barrier members and deflectable between a first configuration, in which the coupler retains the barrier member connected with the tractor, and a second configuration, in which the barrier member is removable from the tab so as to disconnect from the tractor, the tab deflecting from the first configuration toward the second configuration when tension in the barrier member exceeds the predetermined value; anda generally elongated base plate mounted to the tractor, each tab being integrally formed with the plate, each tab having a first end attached to the plate and a second end spaced outwardly from the plate, in an initial configuration, each tab extending outwardly from the plate and generally parallel with a surface of the plate, each tab being deflectable from the initial configuration to the first configuration to connect the engaged one of the barrier members with the tractor. 22. The anti-segregation device as recited in claim 21 wherein each tab is constructed to be bent from the second configuration toward the first configuration to connect at least a portion of a separate one of the barrier members with the tractor after being bent from the first configuration toward the second configuration to enable the separate one of the barrier members to disconnect from the tractor.
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