US3929547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for folding and pressing an edge of pliant material
Assignee: Individual
•
Filing: 1973-07-20
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Granted: 1975-12-30
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Expires: 1993-07-20
Abstract
Abstract A machine for folding and glueing the edges of single sheets of material such as hides, cardboard, imitation leather and the like, comprising a fixed structure having a top bearing plane or board for the material to be folded; a material clamping unit movable between a raised and lowered position for clamping the material, said unit having, furthermore, a longitudinal blade for folding the material and a rotately carried body parallel with and against the edge of said blade for folding the material edge first against the blade and then on itself.
Inventors
- 👤 Danilo Paccagnella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:26
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B31F1/0016
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
324 words
APPARATUS FOR FOLDING AND PRESSING AN ENDGE OF A SOFT PLIABLE MATERIAL, COMPRISING: A SUPPORTING SURFACE TO RECEIVE AND SUPPORT A MATERIAL TO BE FOLDED, MOVABLE MATERIAL CLAMPING MEANS MOUNTED IN LATERALLY SPACED APART RELATION TO AN EXTERMITY OF SAID SUPPORTING SURFACE, SAID CLAMPING MEANS BEING MOUNTED FOR SELECTIVE MOVEMENT BETWEEN A RAISED POSITION RELATIVE TO SAID SUPPORT SURFACE AND A LOWERED POSITION FOR CLAMPING THE MATERIAL AGAINST SAID SUPPORT SURFACE, A MATERIAL FOLDING BLADE CARRIER BY SAID CLAMPING MEANS AND HAVING A FOLDING EDGE PARALLED WITH SAID SUPPORTING SURFACE, MEANS MOUNTING SAID FOLDING BLADE ON SAID CLAMPING MEANS FOR A LIMITED EXTENT OF MOVEMENT TRANSVERSELY OF SAID CLAMPING MEANS BETWEEN AN EXTENDED POSITION AND A RETRACTED POSITION, SAID FOLDING BLADE WHEN IN SAID EXTENDED POSITION PLACING SAID FOLDING EDGE ADJACENT SAID SUPPORTING SURFACE EXTERMITY IN FOLD LINE DEFINING RELATION WITH THE MATERIAL CLAMPED BY SAID CLAMPING MEANS, A FOLDING BODY MOUNTED FOR SELECTIVE ROTATION AVBOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL WITH SAID SUPPORTING SURFACE ETERMITY, SAID FOLDING BODY HAVING A FOLDING SURFACE WHICH FORMS AN EXTENSION OF SAID SUPPORT SURFACE BEYOND SAID EXTERMITY WHEN SAID FOLDING BODY IS ROTATED TO AN INITIAL ROTATION POSITION, MEANS OPERATIVE TO ROTATE SAID FOLDING BODY ABOUT SAID AXIS FROM SAID INITIAL ROTATIONAL POSITION TO A TERMINAL ROTATIONAL POSITION PLACING SAID FOLDING SURFACE IN SUBSTANTIALLY PARALLEL AND CONFORNTING RELATION WITH SAID SUPPORTING SURFACE BETWEEN SAID EXTREMITY AND SAID CLAMPING MEANS, SO THAT AN EDGE PORTION OF THE MATERIAL WHICH WAS CLAMPED ON SAID FOLDING SURFACE IS FOLDED BLACK ONTO AND PRESED AGAINST SAID CLAMPED MATERIAL, CAM MEANS MOUNTED FOR ROTATION CONCURRENTLY WITH SAID SELECTIVE ROTATION OF SAID FOLDING BODY, CAM ENGAGING MEANS OPERATIVELY ASSOCIATED WITH SAID CLAMPING MEANS TO BE ENGAGED BY SAID CAM MEANS FOR MOVING SAID CLAMPING MEANS TO SAID RAISED PORTION WITH SAID FOLDING BODY IS IN SAID INITIAL ROTATIONAL POSITION, AND MEANS OPERATIVELY ASSOCIATED WITH SAID CLAMPING MEANS TO LOWER SAID CLAMPING MEANS.
Claim 2
Dependent Claim
324 words
APPARATUS FOR FOLDING AND PRESSING AN ENDGE OF A SOFT PLIABLE MATERIAL, COMPRISING: A SUPPORTING SURFACE TO RECEIVE AND SUPPORT A MATERIAL TO BE FOLDED, MOVABLE MATERIAL CLAMPING MEANS MOUNTED IN LATERALLY SPACED APART RELATION TO AN EXTERMITY OF SAID SUPPORTING SURFACE, SAID CLAMPING MEANS BEING MOUNTED FOR SELECTIVE MOVEMENT BETWEEN A RAISED POSITION RELATIVE TO SAID SUPPORT SURFACE AND A LOWERED POSITION FOR CLAMPING THE MATERIAL AGAINST SAID SUPPORT SURFACE, A MATERIAL FOLDING BLADE CARRIER BY SAID CLAMPING MEANS AND HAVING A FOLDING EDGE PARALLED WITH SAID SUPPORTING SURFACE, MEANS MOUNTING SAID FOLDING BLADE ON SAID CLAMPING MEANS FOR A LIMITED EXTENT OF MOVEMENT TRANSVERSELY OF SAID CLAMPING MEANS BETWEEN AN EXTENDED POSITION AND A RETRACTED POSITION, SAID FOLDING BLADE WHEN IN SAID EXTENDED POSITION PLACING SAID FOLDING EDGE ADJACENT SAID SUPPORTING SURFACE EXTERMITY IN FOLD LINE DEFINING RELATION WITH THE MATERIAL CLAMPED BY SAID CLAMPING MEANS, A FOLDING BODY MOUNTED FOR SELECTIVE ROTATION AVBOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL WITH SAID SUPPORTING SURFACE ETERMITY, SAID FOLDING BODY HAVING A FOLDING SURFACE WHICH FORMS AN EXTENSION OF SAID SUPPORT SURFACE BEYOND SAID EXTERMITY WHEN SAID FOLDING BODY IS ROTATED TO AN INITIAL ROTATION POSITION, MEANS OPERATIVE TO ROTATE SAID FOLDING BODY ABOUT SAID AXIS FROM SAID INITIAL ROTATIONAL POSITION TO A TERMINAL ROTATIONAL POSITION PLACING SAID FOLDING SURFACE IN SUBSTANTIALLY PARALLEL AND CONFORNTING RELATION WITH SAID SUPPORTING SURFACE BETWEEN SAID EXTREMITY AND SAID CLAMPING MEANS, SO THAT AN EDGE PORTION OF THE MATERIAL WHICH WAS CLAMPED ON SAID FOLDING SURFACE IS FOLDED BLACK ONTO AND PRESED AGAINST SAID CLAMPED MATERIAL, CAM MEANS MOUNTED FOR ROTATION CONCURRENTLY WITH SAID SELECTIVE ROTATION OF SAID FOLDING BODY, CAM ENGAGING MEANS OPERATIVELY ASSOCIATED WITH SAID CLAMPING MEANS TO BE ENGAGED BY SAID CAM MEANS FOR MOVING SAID CLAMPING MEANS TO SAID RAISED PORTION WITH SAID FOLDING BODY IS IN SAID INITIAL ROTATIONAL POSITION, AND MEANS OPERATIVELY ASSOCIATED WITH SAID CLAMPING MEANS TO LOWER SAID CLAMPING MEANS.
Claim 3
Dependent Claim
31 words
Apparatus as in claim 1, wherein said means to lower said clamping means comprises resilient means operatively associated with said clamping means to urge said clamping means to said lowered position.
Claim 4
Dependent Claim
31 words
Apparatus as in claim 1, wherein said folding surface has a flat material supporting surface which aligned with said supporting surface when said folding body is in said first rotational position.
Claim 5
Dependent Claim
73 words
Apparatus as in claim 1, wherein: said folding body carries a material positioning member selectively positionable either in an extended position projecting beyond said folding surface or in a retracted position; and positioning means moving said positioning member to said extended position in response to said folding body assuming said initial position and moving said positioning member to said retracted position in response to said folding body rotating away from said initial position.
Claim 6
Dependent Claim
45 words
Apparatus as in claim 4, wherein said positioning means comprises means resiliently urging said positioning member to said retracted position, and cam means operative to move said positioning member to said extended position in response to movement of said folding body to said initial position.
Claim 7
Dependent Claim
300 words
APPARATUS FOR FOLDING AND PRESSING AN EDGE OF A SOFT PLIABLE MATERIAL, COMPRISING: A SUPPORTING SURFACE TO RECEIVE AND SUPPORT A MATERIAL TO BE FOLDED, MOVABLE MATERIAL CLAMPING MEANS MOUNTED IN LATERALLY SPACED APART RELATION TO AN EXTERMITY OF SAID SUPPORTING SURFACE, SAID CLAMPING MEANS BEING MOUNTED FOR SELECTIVE MOVEMENT BETWEEN A RAISED POSITION RELATIVE TO SAID SUPPORT SURFACE AND A LOWER POSITION FOR CLAMPING THE MATERIAL AGAINST SAID SUPPORT SURFACE, A MATERIAL FOLDING BLADE CARRIED BY SAID CLAMPING MEANS AND HAVING A FOLDING EDGE PARALLEL WITH SAID SUPPORTING SURFACE, MEANS MOUNTING SAID FOLDING BLADE ON SAID CLAMPING MEANS FOR A LIMITED EXTENT OF MOVEMENT TRANSVERSELY OF SAID CLAMPING MEANS BETWEEN AN EXTENDED POSITION AND A RETRACTED POSITION, SAID FOLDING BLADE WHEN IN SAID EXTENDED POSITION PLACING SAID FOLDING EDGE ADJACENT SAID SUPPORTING SURFACE EXTREMITY IN FOLD LINE DEFINING RELATION SAID EXTERMITY WHEN S A FOLDING BODY MOUNTED FOR SELECTIVE ROTATION ABOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL WITH SAID SUPPORTING SURFACE EXTREMITY, SAID FO.LDING BODY HAVING A FOLDING SURFACE WHICH FORMS AN EXTENSION OF SAID SUPPORT SURFACE BEYOND SAID EXTREMITY WHEN SAID FOLDING BODY IS ROTATED TO AN INITIAL ROTATIONAL POSITION, MEANS OPERATIVE TO ROTATE SAID FOLDING BODY ABOUT SAID AXIS FROM SAID INITIAL ROTATIONAL POSITION TO A TERMINAL ROTATIONAL POSITION PLACING SAID FOLDING SURFACE IN SUBSTANTIALLY PARALLEL AND CONFRONTING RELATION WITH SAID SUPPORTING SURFACE BETWEEN SAID EXTERMITY AND SAID CLAMPING MEANS, SO THAT AN EDGE PORTION OF THE MATERIAL WHICH WAS CLAMPED ON SAID FOLDING SURFACE IS FOLDED BACK ONTO AND PRESSED AGAINST SAID CLAMPED MATERIAL, AND RESILIENT MEANS SUPPORTING SAID AXIS OF SAID FOLDING BODY TO ALLOW SAID AXIS AND SAID FOLDING BODY TO UNDERGO A LIMITED EXTENT OF TRANSLATION MOVEMENT RELATIVE TO SAID SUPPORTING SURFACE AS SAID FOLDING BODY IS ROTATED TO ASUME SAID TERMINAL POSITION.
Claim 8
Dependent Claim
300 words
APPARATUS FOR FOLDING AND PRESSING AN EDGE OF A SOFT PLIABLE MATERIAL, COMPRISING: A SUPPORTING SURFACE TO RECEIVE AND SUPPORT A MATERIAL TO BE FOLDED, MOVABLE MATERIAL CLAMPING MEANS MOUNTED IN LATERALLY SPACED APART RELATION TO AN EXTERMITY OF SAID SUPPORTING SURFACE, SAID CLAMPING MEANS BEING MOUNTED FOR SELECTIVE MOVEMENT BETWEEN A RAISED POSITION RELATIVE TO SAID SUPPORT SURFACE AND A LOWER POSITION FOR CLAMPING THE MATERIAL AGAINST SAID SUPPORT SURFACE, A MATERIAL FOLDING BLADE CARRIED BY SAID CLAMPING MEANS AND HAVING A FOLDING EDGE PARALLEL WITH SAID SUPPORTING SURFACE, MEANS MOUNTING SAID FOLDING BLADE ON SAID CLAMPING MEANS FOR A LIMITED EXTENT OF MOVEMENT TRANSVERSELY OF SAID CLAMPING MEANS BETWEEN AN EXTENDED POSITION AND A RETRACTED POSITION, SAID FOLDING BLADE WHEN IN SAID EXTENDED POSITION PLACING SAID FOLDING EDGE ADJACENT SAID SUPPORTING SURFACE EXTREMITY IN FOLD LINE DEFINING RELATION SAID EXTERMITY WHEN S A FOLDING BODY MOUNTED FOR SELECTIVE ROTATION ABOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL WITH SAID SUPPORTING SURFACE EXTREMITY, SAID FO.LDING BODY HAVING A FOLDING SURFACE WHICH FORMS AN EXTENSION OF SAID SUPPORT SURFACE BEYOND SAID EXTREMITY WHEN SAID FOLDING BODY IS ROTATED TO AN INITIAL ROTATIONAL POSITION, MEANS OPERATIVE TO ROTATE SAID FOLDING BODY ABOUT SAID AXIS FROM SAID INITIAL ROTATIONAL POSITION TO A TERMINAL ROTATIONAL POSITION PLACING SAID FOLDING SURFACE IN SUBSTANTIALLY PARALLEL AND CONFRONTING RELATION WITH SAID SUPPORTING SURFACE BETWEEN SAID EXTERMITY AND SAID CLAMPING MEANS, SO THAT AN EDGE PORTION OF THE MATERIAL WHICH WAS CLAMPED ON SAID FOLDING SURFACE IS FOLDED BACK ONTO AND PRESSED AGAINST SAID CLAMPED MATERIAL, AND RESILIENT MEANS SUPPORTING SAID AXIS OF SAID FOLDING BODY TO ALLOW SAID AXIS AND SAID FOLDING BODY TO UNDERGO A LIMITED EXTENT OF TRANSLATION MOVEMENT RELATIVE TO SAID SUPPORTING SURFACE AS SAID FOLDING BODY IS ROTATED TO ASUME SAID TERMINAL POSITION.
Claim 9
Dependent Claim
46 words
Apparatus as in claim 6, wherein said folding body is supported for said rotation at a pair of support locations, and each of said support locations is independently supported by said resilient means for resiliently yielding movement in a direction perpendicular to said axis of rotation.
Claim 10
Dependent Claim
24 words
Apparatus as in claim 6, wherein said rotation means is supported by said resilient means for said translational movement along with said folding body.
Claim 11
Dependent Claim
21 words
Apparatus as in claim 1, wherein said support surface adjacent said extremity is covered with a layer of resiliently yieldable material.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |