Patent US3774740A successfully refreshed from Google Patents.
US3774740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking device for presses and transferfeeders
Assignee: Komatsu Ltd
•
Filing: 1971-07-09
•
Granted: 1973-11-27
•
Expires: 1991-07-09
Abstract
Abstract In a press line including presses and transferfeeders provided between said presses, an interlocking device has the function such that if any over-load should be caused while said presses and transferfeeders are being interlocked and synchronously driven through a transmission driving system, the interlocking movement is simultaneously shut off, whereby breakage of the whole relative machineries can be prevented and safety thereof can be secured.
Inventors
- 👤 I Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:12
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/05; B21D43/055; B21D55/00; B21J; B21J13/00; F; F16; F16P; F16P7/00; F16P7/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
387 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system and a transferfeeder side drive shafting system wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press side drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system so as to be rotatable but immovable in the axial direction of said press side shafting system, an internal gear portion positioned on said press side actuating member, a transferfeeder side actuating member positioned at the end of said transferfeeder side shafting system adjacent the end of said press side shafting system and arranged so as to be rotatable and movable in the axial direction and also arranged to be removably interlocked with said press side actuating member, said transferfeeder side actuating member having a gear portion thereon,an air cylinder, means connecting said air cylinder to said transferfeeder side actuating member so that said air cylinder urges said transferfeeder side actuating member toward and into engagement with said press side actuating member, said internal gear portion arranged to engage said gear portion when said press side actuating member and transferfeeder side actuating member are released from engagement, a limit switch in communication with said air cylinder and arranged in the path of movement of said means for connecting said air cylinder to said transferfeeder side actuating member for providing an air switching signal for said air cylinder and a drive stopping signal for the press line, so that if any overload is caused, the interlocking engagement of said press side actuating member and transferfeeder side actuating member is released and the connection between said drive shafting system on the press side and said drive shafting system on the transferfeeder side is broken and the engagement of said internal gear portion positioned on said press side actuating member and said gear portion on said transferfeeder side actuating member is effected, and by the operation of said limit switch following the releasing displacement of said actuating mechanism on the transferfeeder side thereof the driving action of the press line is stopped.
Claim 2
Dependent Claim
387 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system and a transferfeeder side drive shafting system wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press side drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system so as to be rotatable but immovable in the axial direction of said press side shafting system, an internal gear portion positioned on said press side actuating member, a transferfeeder side actuating member positioned at the end of said transferfeeder side shafting system adjacent the end of said press side shafting system and arranged so as to be rotatable and movable in the axial direction and also arranged to be removably interlocked with said press side actuating member, said transferfeeder side actuating member having a gear portion thereon,an air cylinder, means connecting said air cylinder to said transferfeeder side actuating member so that said air cylinder urges said transferfeeder side actuating member toward and into engagement with said press side actuating member, said internal gear portion arranged to engage said gear portion when said press side actuating member and transferfeeder side actuating member are released from engagement, a limit switch in communication with said air cylinder and arranged in the path of movement of said means for connecting said air cylinder to said transferfeeder side actuating member for providing an air switching signal for said air cylinder and a drive stopping signal for the press line, so that if any overload is caused, the interlocking engagement of said press side actuating member and transferfeeder side actuating member is released and the connection between said drive shafting system on the press side and said drive shafting system on the transferfeeder side is broken and the engagement of said internal gear portion positioned on said press side actuating member and said gear portion on said transferfeeder side actuating member is effected, and by the operation of said limit switch following the releasing displacement of said actuating mechanism on the transferfeeder side thereof the driving action of the press line is stopped.
Claim 3
Dependent Claim
441 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system, and a transferfeeder side drive shafting system, wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press line drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system, said press side actuating member having an engaging portion on its end adjacent said transferfeeder side drive shafting system, a cylindrical engaging element having an internal gear portion thereon is rotatably mounted on said press side actuating member, a worm wheel fixed on said cylindrical engaging element, a worm positioned in engagement with said worm wheel, a transferfeeder side actuating member located on the end of said transferfeeder drive shafting system adjacent the end of said press side drive shafting system and having an engaging portion positioned on its end adjacent said press side actuating member and said engaging portion having a gear portion provided on its outer periphery, said transferfeeder side actuating member is rotatable and is axially displaceably mounted on said transferfeeder side drive shafting system, a cup-shaped member mounted on said transferfeeder side actuating member, an air cylinder, a lever connected to said air cylinder and to said cup-shaped member so that through the medium of said lever said air cylinder urges said transferfeeder side actuating member toward said press side actuating member, said internal gear portion arranged to engage said gear portion when said actuating mechanism is released, a limit switch disposed in communication with said air cylinder and arranged in the path of movement of said lever connected to said air cylinder for providing an air switching signal for said air cylinder and a drive stopping signal for the press line, said press side actuating member and said transferfeeder side actuating member arranged for interlocking engagement so that if any overload is caused, the interlocking engagement of said press side actuating member and said transferfeeder side actuating member is released and the connection between said drive shafting system on the press side and said drive shafting system on the transferfeeder side is broken and the engagement of said internal gear portion on said press side actuating member and said gear portion on said transferfeeder side actuating member is effected and by the operation of said limit switch following the releasing displacement of said actuating mechanism on the transferfeeder side the driving action of the press line is stopped.
Claim 4
Dependent Claim
441 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system, and a transferfeeder side drive shafting system, wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press line drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system, said press side actuating member having an engaging portion on its end adjacent said transferfeeder side drive shafting system, a cylindrical engaging element having an internal gear portion thereon is rotatably mounted on said press side actuating member, a worm wheel fixed on said cylindrical engaging element, a worm positioned in engagement with said worm wheel, a transferfeeder side actuating member located on the end of said transferfeeder drive shafting system adjacent the end of said press side drive shafting system and having an engaging portion positioned on its end adjacent said press side actuating member and said engaging portion having a gear portion provided on its outer periphery, said transferfeeder side actuating member is rotatable and is axially displaceably mounted on said transferfeeder side drive shafting system, a cup-shaped member mounted on said transferfeeder side actuating member, an air cylinder, a lever connected to said air cylinder and to said cup-shaped member so that through the medium of said lever said air cylinder urges said transferfeeder side actuating member toward said press side actuating member, said internal gear portion arranged to engage said gear portion when said actuating mechanism is released, a limit switch disposed in communication with said air cylinder and arranged in the path of movement of said lever connected to said air cylinder for providing an air switching signal for said air cylinder and a drive stopping signal for the press line, said press side actuating member and said transferfeeder side actuating member arranged for interlocking engagement so that if any overload is caused, the interlocking engagement of said press side actuating member and said transferfeeder side actuating member is released and the connection between said drive shafting system on the press side and said drive shafting system on the transferfeeder side is broken and the engagement of said internal gear portion on said press side actuating member and said gear portion on said transferfeeder side actuating member is effected and by the operation of said limit switch following the releasing displacement of said actuating mechanism on the transferfeeder side the driving action of the press line is stopped.
Claim 5
Dependent Claim
507 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system, and a transferfeeder side drive shafting system, wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press side drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system and said press side actuating member having an engaging portion at its end adjacent said transferfeeder side shafting system, a cylindrical engaging element rotatably mounted on said press side actuating member and having an internal gear portion thereon, a worm wheel fixed to said cylindrical engaging element, a worm disposed in engagement with said worm wheel, a transferfeeder side actuating member located on the end of said transferfeeder drive shafting system adjacent the end of said press side drive shafting system and having an engaging portion on its end adjacent said press side actuating member and said engaging portion having a gear portion on its outer periphery, said transferfeeder side actuating member is axially displaceably mounted on said transferfeeder side shafting system, a cup-shaped member mounted on said transferfeeder side actuating member, an air cylinder, a lever connected to said air cylinder and to said cup-shaped member for urging said transferfeeder side actuating member toward said press side actuating member, said press side actuating member and said transferfeeder side actuating member arranged to be disposed in releasably interlocking engagement, said internal gear portion arranged to engage said gear portion when said press side actuating member and said transferfeeder side actuating member are released from interlocking engagement, said engaging portion on said press side actuating member and said engaging portion on said transferfeeder side actuating member each having an inclined surface at its end surface in juxtaposition to the other for affording a press-contact between said press side actuating member and said transferfeeder side actuating member, a limit switch disposed in communication with said air cylinder and arranged in the path of movement of said lever connected to said air cylinder for providing an air switching signal to said air cylinder and a drive stopping signal for the press line, so that if any overload is caused, and a thrusting force between said inclined surfaces on said press side actuating member and transferfeeder side actuating member becomes larger than the pressing force produced by said air cylinder, said transferfeeder side actuating member is disengaged from said press side actuating member and the interlocking engagement between said press side drive shafting system and said transferfeeder side drive shafting system is broken by the engagement of said internal gear portion on said press side actuating member and said gear portion on said transferfeeder side actuating member and by the operation of said limit switch following the displacement of said transferfeeder side actuating member the driving action of the press line is stopped.
Claim 6
Dependent Claim
507 words
An interlocking device for use in a press line between a press and a transferfeeder comprises a press side drive shafting system, and a transferfeeder side drive shafting system, wherein the improvement comprises an actuating mechanism positioned between and at the location of the adjacent ends of said press side drive shafting system and said transferfeeder side drive shafting system, said actuating mechanism comprises a press side actuating member positioned at the end of said press side shafting system adjacent the end of said transferfeeder side shafting system and said press side actuating member having an engaging portion at its end adjacent said transferfeeder side shafting system, a cylindrical engaging element rotatably mounted on said press side actuating member and having an internal gear portion thereon, a worm wheel fixed to said cylindrical engaging element, a worm disposed in engagement with said worm wheel, a transferfeeder side actuating member located on the end of said transferfeeder drive shafting system adjacent the end of said press side drive shafting system and having an engaging portion on its end adjacent said press side actuating member and said engaging portion having a gear portion on its outer periphery, said transferfeeder side actuating member is axially displaceably mounted on said transferfeeder side shafting system, a cup-shaped member mounted on said transferfeeder side actuating member, an air cylinder, a lever connected to said air cylinder and to said cup-shaped member for urging said transferfeeder side actuating member toward said press side actuating member, said press side actuating member and said transferfeeder side actuating member arranged to be disposed in releasably interlocking engagement, said internal gear portion arranged to engage said gear portion when said press side actuating member and said transferfeeder side actuating member are released from interlocking engagement, said engaging portion on said press side actuating member and said engaging portion on said transferfeeder side actuating member each having an inclined surface at its end surface in juxtaposition to the other for affording a press-contact between said press side actuating member and said transferfeeder side actuating member, a limit switch disposed in communication with said air cylinder and arranged in the path of movement of said lever connected to said air cylinder for providing an air switching signal to said air cylinder and a drive stopping signal for the press line, so that if any overload is caused, and a thrusting force between said inclined surfaces on said press side actuating member and transferfeeder side actuating member becomes larger than the pressing force produced by said air cylinder, said transferfeeder side actuating member is disengaged from said press side actuating member and the interlocking engagement between said press side drive shafting system and said transferfeeder side drive shafting system is broken by the engagement of said internal gear portion on said press side actuating member and said gear portion on said transferfeeder side actuating member and by the operation of said limit switch following the displacement of said transferfeeder side actuating member the driving action of the press line is stopped.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |