Patent US3865253A successfully refreshed from Google Patents.
US3865253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parts handler
Assignee: Individual
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Filing: 1973-07-12
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Granted: 1975-02-11
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Expires: 1993-07-12
Abstract
Abstract A parts handler for picking up, transferring and placing a part from a first position into a second position includes a horizontal arm mounted on a frame for movement both vertically and horizontally. Vertical movement of the arm is controlled by a lift cam which is connected by a bell crank to a guide block carrying the arm. Horizontal movement of the arm is effected by a stroke cam which is connected to the inner end of the arm through a link. The lift and stroke cams are mounted on a common drive shaft journaled in the frame and, when rotated, pivot the bell crank and the link, respectively, to move the arm vertically and horizontally along a predetermined path, picking up the part from the first position with a device which is mounted on the outer end of the arm and placing the part in a second position prior to returning back along the path for another part.
Inventors
- 👤 Francis L Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:17
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B65G47/912; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
391 words
A parts handler adapted to pick up, transfer and place a part from a first position into a second position, said handler including a frame, a horizontal arm slidably mounted on said frame for movement both vertically and horizontally along a predetermined path, said arm having an inner end portion and also having an outer end portion which projects from one side of said frame, means on the outer end portion of said arm for picking up and holding said part for movement with said arm along said path from said first position to said second position and for releasing said part at said second position, and means for moving said arm along said path, said means including a guide block secured to said frame for vertical movement relative thereto, said arm being mounted on said block for vertical movement therewith while still being free to slide horizontally relative to said block, a lift cam rotatably mounted on said frame, a first lever member connected between said lift cam and said guide block to raise the latter on said frame, a stroke cam rotatably mounted on said frame, a second lever member connected between said stroke cam and the inner end of said arm to move the latter horizontally back and forth as the stroke cam is rotated, a common drive shaft journaled on said frame and carrying both of said cams, means for rotating said cams to move said arm along said path so as to pick up, transfer and place a part from said first position into said second position first and second pivotal connections securing said lever members to said frame, and first and second followers mounted on said lever members and positioned to engage said cams, said first member having one end spaced from said first connection a distance greater than the distance between said first connection and said first follower, said second member having one end spaced from said second connection a distance greater than the distance between said second connection and said second follower, the ends of said lever members engaging said slide block and the inner end of said arm, respectively, so that, as said cams are rotated, the vertical and horizontal distances said arm is moved are greater than the horizontal distances said first and second followers are moved by their respective cams.
Claim 2
Dependent Claim
391 words
A parts handler adapted to pick up, transfer and place a part from a first position into a second position, said handler including a frame, a horizontal arm slidably mounted on said frame for movement both vertically and horizontally along a predetermined path, said arm having an inner end portion and also having an outer end portion which projects from one side of said frame, means on the outer end portion of said arm for picking up and holding said part for movement with said arm along said path from said first position to said second position and for releasing said part at said second position, and means for moving said arm along said path, said means including a guide block secured to said frame for vertical movement relative thereto, said arm being mounted on said block for vertical movement therewith while still being free to slide horizontally relative to said block, a lift cam rotatably mounted on said frame, a first lever member connected between said lift cam and said guide block to raise the latter on said frame, a stroke cam rotatably mounted on said frame, a second lever member connected between said stroke cam and the inner end of said arm to move the latter horizontally back and forth as the stroke cam is rotated, a common drive shaft journaled on said frame and carrying both of said cams, means for rotating said cams to move said arm along said path so as to pick up, transfer and place a part from said first position into said second position first and second pivotal connections securing said lever members to said frame, and first and second followers mounted on said lever members and positioned to engage said cams, said first member having one end spaced from said first connection a distance greater than the distance between said first connection and said first follower, said second member having one end spaced from said second connection a distance greater than the distance between said second connection and said second follower, the ends of said lever members engaging said slide block and the inner end of said arm, respectively, so that, as said cams are rotated, the vertical and horizontal distances said arm is moved are greater than the horizontal distances said first and second followers are moved by their respective cams.
Claim 3
Dependent Claim
58 words
A parts handler as defined by claim 1 including a spring mounted between said guide block and said frame to bias said block downwardly so the latter is held in engagement with the end of said first lever member and yet may be moved upwardly off the end of said first member to prevent damage to the handler.
Claim 4
Dependent Claim
41 words
A parts handler as defined by claim 2 including a vertical guide rod secured to said frame and telescoped through an opening in said guide block to guide the vertical movement of the block, said spring being telescoped over said rod.
Claim 5
Dependent Claim
82 words
A parts handler as defined by claim 3 wherein said arm comprises a horizontal bar telescoped through a hole in the guide block to slide in a horizontal direction, a head fastened to the outer end of said bar and adapted to support said pick up means, and a plate secured on the inner end of the bar for engagement by the end of said second lever member to move the bar horizontally back and forth as said stroke cam is rotated.
Claim 6
Dependent Claim
76 words
A parts handler as defined by claim 4 including a first stop mounted on said plate and projecting toward said head for engagement with said guide block to limit forward movement of the arm to locate said head precisely in said first position, a detent on said guide block and projecting forwardly thereof and toward said head for engagement thereby to limit rearward movement of said arm to locate said head precisely in said second position.
References Cited (Backward Citations)
US3701297A
Cited
US3703834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |