US3791496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual control adapter for press
Assignee: BISSEL AMFAB Inc A CORP OF MI
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Filing: 1972-08-17
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Granted: 1974-02-12
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Expires: 1992-08-17
Abstract
Abstract Safety actuating device for a press. In a press, as a punch press, having a one-way clutch and a rod responsive to actuating means for operating said clutch to control the press, there is provided means interposed between actuating means and said rod to insure that the press will operate only in response to a force occurring in a predetermined manner and place. The rod is connected to a pivotally mounted lever whose operation is first resisted and then effected by successive operation of two linkages responding to energizing of a pressure cylinder. One linkage first, and normally, provides support means under said lever for positively preventing it from effecting movement of said rod. A pair of hand switches are each connected to a valve for energizing the cylinder when both of the operator''s hands are on the respective switches. With the device of the invention in place and the actuating cylinder energized, the first operation is to pull the support means out of locking position and thereby to permit downward movement of said lever. This is followed immediately by engagement of said lever by said second linkage which draws the ever downward sufficiently to effect such movement of said pull rod as to energize the clutch and initiate one operation of the press.
Inventors
- 👤 H Emrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:10
CPC Classifications
F; F16; F16P; F16P3/00; F16P3/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
378 words
Operating means for a press utilizing a clutch operable by substantially rectilinear motion of a trip means, the combination comprising: power means actuated by an operator for generating mechanical rectilinear motion, said power means including a head member movable in a direction parallel to said direction of movement of said trip means in response to actuation of said power means; translating means adapted to receive said rectilinear motion from said power means and apply same to said trip means, said translating means being normally held in a first position corresponding to the inoperative position of said clutch and movable by said power means to a second position corresponding to the operative position of said clutch; said translating means including a power transmitting member and means mounting same for movement with a substantial component thereof in a direction parallel to the direction of movement of said trip means as same moves to operate said clutch; first link means operatively responsive to movement of said head member and having a lost motion connection with said transmitting member; latch means engaging at least a portion of said translating means and normally in a blocking position to positively hold said translating means in said first position, said latch means including a latch and means normally holding same in position for blocking movement of said power transmitting member in a direction corresponding to closure of said clutch; and release means actuated by said power means and effective to withdraw said latch means from said blocking position immediately prior to application of force by said power means to said translating means; said release means including second link means responsive to movement of said head member and connected for retracting said latch from said blocking position in response to movement in said direction by said head member, the lost motion relationship of said first link means being sufficient to permit said latch to be retracted prior to connection of said first link means to said transmitting member in power transmitting relationship; whereby upon the appearance of a force output by said power means said latch means will be withdrawn from said blocking position and force applied by said power means to said translating means will be effectively applied to said trip means for actuation thereof.
Claim 2
Dependent Claim
378 words
Operating means for a press utilizing a clutch operable by substantially rectilinear motion of a trip means, the combination comprising: power means actuated by an operator for generating mechanical rectilinear motion, said power means including a head member movable in a direction parallel to said direction of movement of said trip means in response to actuation of said power means; translating means adapted to receive said rectilinear motion from said power means and apply same to said trip means, said translating means being normally held in a first position corresponding to the inoperative position of said clutch and movable by said power means to a second position corresponding to the operative position of said clutch; said translating means including a power transmitting member and means mounting same for movement with a substantial component thereof in a direction parallel to the direction of movement of said trip means as same moves to operate said clutch; first link means operatively responsive to movement of said head member and having a lost motion connection with said transmitting member; latch means engaging at least a portion of said translating means and normally in a blocking position to positively hold said translating means in said first position, said latch means including a latch and means normally holding same in position for blocking movement of said power transmitting member in a direction corresponding to closure of said clutch; and release means actuated by said power means and effective to withdraw said latch means from said blocking position immediately prior to application of force by said power means to said translating means; said release means including second link means responsive to movement of said head member and connected for retracting said latch from said blocking position in response to movement in said direction by said head member, the lost motion relationship of said first link means being sufficient to permit said latch to be retracted prior to connection of said first link means to said transmitting member in power transmitting relationship; whereby upon the appearance of a force output by said power means said latch means will be withdrawn from said blocking position and force applied by said power means to said translating means will be effectively applied to said trip means for actuation thereof.
Claim 3
Dependent Claim
164 words
The device of claim 1 wherein said power transmitting member comprises a power transmittal arm pivotally mounted with respect to the frame of said press and arranged for movement having a substantial component in a direction parallel to the direction of movement of said trip means as same moves to operate said clutch; said head member comprising a cross head arranged in a position substantially perpendicular to said direction and arranged for movement in said direction in response to energization of said power means; said first link meanS including a first link pivoted to one portion of said cross head and having a lost motion relationship with a first portion of said power transmittal arm at a location spaced from the point of pivoting thereof; and said second link means including lost motion means for connecting said cross head to said latch for moving same from said blocking position to a released position on movement of said cross head in the clutch closing direction.
Claim 4
Dependent Claim
93 words
The device of claim 2 wherein said second link means is connected by a hook and pin arrangement to said latch and including also cam means for disconnecting said hook and pin upon movement of said cross head through a selected distance in the clutch closing direction whereby said latch will be free to return to its blocking position immediately upon return by said power transmittal arm to its first position and regardless of whether said cross head has yet returned to the position occupied by same at the beginning of the cycle.
Claim 5
Dependent Claim
215 words
In a power translation device for imposing a rectilinear operating motion onto trip means adapted to operate the clutch of a punch press in response to power means actuated by an operator and including a power transmitting member arranged for rectilinear movement with at least a substantial component thereof parallel to the direction of movement of said trip means, and drive means responsive to actuation by said power means for actuating said clutch in response to output by said power means, the improvement in safety means therefor comprising: a latch means normally positioned for blocking movement of said power transmitting member from a first position corresponding to the open condition of said clutch to a second position corresponding to the closed condition of said clutch; means constantly urging said latch means toward a blocking position; link means responsive to movement of said power means for movement of said latch means out of said blocking position; and said drive means including lost motion linkage means connecting same to said power transmitting member, whereby energization of said power means effects movement first of said latch means out of said blocking position followed by, upon run-out of said lost motion, movement of said power transmitting member for effecting motion of said trip means in the clutch closing direction.
Claim 6
Dependent Claim
215 words
In a power translation device for imposing a rectilinear operating motion onto trip means adapted to operate the clutch of a punch press in response to power means actuated by an operator and including a power transmitting member arranged for rectilinear movement with at least a substantial component thereof parallel to the direction of movement of said trip means, and drive means responsive to actuation by said power means for actuating said clutch in response to output by said power means, the improvement in safety means therefor comprising: a latch means normally positioned for blocking movement of said power transmitting member from a first position corresponding to the open condition of said clutch to a second position corresponding to the closed condition of said clutch; means constantly urging said latch means toward a blocking position; link means responsive to movement of said power means for movement of said latch means out of said blocking position; and said drive means including lost motion linkage means connecting same to said power transmitting member, whereby energization of said power means effects movement first of said latch means out of said blocking position followed by, upon run-out of said lost motion, movement of said power transmitting member for effecting motion of said trip means in the clutch closing direction.
Claim 7
Dependent Claim
33 words
The device of claim 4 wherein said latch means includes a pivoted bell crank latch member wherein one arm thereof constitutes a counter-weight normally urging the other arm thereof into said blocking position.
Claim 8
Dependent Claim
341 words
Operating means for a press utilizing a clutch operable by substantially rectilinear motion of a trip means, the combination comprising: power means for generating mechanical rectilinear motion; a pair of manually actuated switch means connected in series with one another and operably connected to said power means for permitting energization thereof only when both of said switch means are closed, said pair of switch means being sufficiently spaced apart so as to require an operator to utilize both hands so as to permit simultaneous manual actuation of both of said switch means; translating means adapted to receive said rectilinear motion from said power means and apply same to said trip means, said translating means being normally held in a first position corresponding in the inoperative position of said clutch and movable by said power means to a second position corresponding to the operative position of said clutch; linkage means operatively coacting between said power means and said translating means for transmitting the rectilinear motion of said power means to said translating means, said linkage means including a lost-motion connection for permitting a preselected amount of rectilinear movement of said power means without causing a corresponding movement of said translating means; latch means engaging at least a portion of the translating means and normally maintained same in a blocking position to positively hold said translating means in said first position; and release means coacting between said power mEans and said latch means and actuated during said selected amount of rectilinear motion for withdrawing said latch means from said blocking position as said power means moves through said preselected amount of rectilinear movement prior to movement of said translating means by said linkage means; whereby upon the appearance of a force output by said power means, said latch means will be initially withdrawn from said blocking position prior to the application of force to said translating means by said power means, whereupon said power means will then apply force to said translating means for moving said trip means to thereby actuate said clutch.
Claim 9
Dependent Claim
341 words
Operating means for a press utilizing a clutch operable by substantially rectilinear motion of a trip means, the combination comprising: power means for generating mechanical rectilinear motion; a pair of manually actuated switch means connected in series with one another and operably connected to said power means for permitting energization thereof only when both of said switch means are closed, said pair of switch means being sufficiently spaced apart so as to require an operator to utilize both hands so as to permit simultaneous manual actuation of both of said switch means; translating means adapted to receive said rectilinear motion from said power means and apply same to said trip means, said translating means being normally held in a first position corresponding in the inoperative position of said clutch and movable by said power means to a second position corresponding to the operative position of said clutch; linkage means operatively coacting between said power means and said translating means for transmitting the rectilinear motion of said power means to said translating means, said linkage means including a lost-motion connection for permitting a preselected amount of rectilinear movement of said power means without causing a corresponding movement of said translating means; latch means engaging at least a portion of the translating means and normally maintained same in a blocking position to positively hold said translating means in said first position; and release means coacting between said power mEans and said latch means and actuated during said selected amount of rectilinear motion for withdrawing said latch means from said blocking position as said power means moves through said preselected amount of rectilinear movement prior to movement of said translating means by said linkage means; whereby upon the appearance of a force output by said power means, said latch means will be initially withdrawn from said blocking position prior to the application of force to said translating means by said power means, whereupon said power means will then apply force to said translating means for moving said trip means to thereby actuate said clutch.
Claim 10
Dependent Claim
60 words
Operating means according to claim 6, wherein said latch means includes a latch member mounted for pivotal movement and normally urged into blocking engagement with said translating means, and said release means including a release member connected to said power means and movable therewith, said release member being pivotal and having a portion thereof releasably engageable with said latch member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |