US3797428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making corner or edge plates for cases, packing, containers or other receptacles and a plant for carrying through the method
Assignee: Individual
•
Filing: 1972-03-15
•
Granted: 1974-03-19
•
Expires: 1992-03-15
Abstract
Abstract This disclosure has to do with the forming of fittings for wood containers and the like from continuously fed strip material. Mechanism is provided for performing various stamping and working operations on this strip material in a manner to keep pace with the movement of the strip material and after each work operation is performed on the strip material, the tool performing the work operation is returned to its initial position and subsequent performance of a further work operation.
Inventors
- 👤 P Klockarns
- 👤 H Nordgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/028
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
241 words
A plant for making out of a strip like material corner and edge members of the plate and fitting type for cases, packing containers and like receptacles, including a supply for feeding out strip material; stamping means for stamping out securing tabs, openings, recesses or the like; profile forming means to impart to the strip material a generally V-formed cross section profile; and shearing means for shearing off the strip material into plates forming pieces having a predetermined length; means mounting said stamping means, said forming means and said shearing means for separate reciprocation in the direction of movement of the strip material to keep pace with the strip material at substantially the same speed as that of the strip material during each of the stamping, forming and shEaring operations and to return into an initial position after having accomplished their operation; said stamping means being disposed in advance of said forming means which in turn are disposed in advance of said shearing means, and that the stamping means for stamping out the securing tabs includes at least one stamp member positioned below the strip material and at least one die positioned above the strip material and the stamp member, said die and said stamper co-operating in a manner to stamp out tabs which will be directed upwardly at all times in order to secure a non-obstructed feeding of the strip material through all stamping means, forming means and shearing means.
Claim 2
Dependent Claim
241 words
A plant for making out of a strip like material corner and edge members of the plate and fitting type for cases, packing containers and like receptacles, including a supply for feeding out strip material; stamping means for stamping out securing tabs, openings, recesses or the like; profile forming means to impart to the strip material a generally V-formed cross section profile; and shearing means for shearing off the strip material into plates forming pieces having a predetermined length; means mounting said stamping means, said forming means and said shearing means for separate reciprocation in the direction of movement of the strip material to keep pace with the strip material at substantially the same speed as that of the strip material during each of the stamping, forming and shEaring operations and to return into an initial position after having accomplished their operation; said stamping means being disposed in advance of said forming means which in turn are disposed in advance of said shearing means, and that the stamping means for stamping out the securing tabs includes at least one stamp member positioned below the strip material and at least one die positioned above the strip material and the stamp member, said die and said stamper co-operating in a manner to stamp out tabs which will be directed upwardly at all times in order to secure a non-obstructed feeding of the strip material through all stamping means, forming means and shearing means.
Claim 3
Dependent Claim
26 words
A plant as claimed in claim 1, characterized in that said stamp member is a fixed stamp member and the die is a vertically movable die.
Claim 4
Dependent Claim
58 words
A plant as claimed in claim 1, characterized in that the supply is a winder from which at least one roll of strip material is able to wind off and that a photo-cell is associated with the winder to indicate the end of a strip material roll and make the plant stop when the winder has run out.
Claim 5
Dependent Claim
32 words
A plant as claimed in claim 1, characterized by said stamping means including a first stamping mechanism for imparting to the strip material a first number of securing tabs, for example three.
Claim 6
Dependent Claim
32 words
A plant as claimed in claim 4, characterized by said stamping means including a second stamping mechanism for imparting to the strip material a second number of securing tabs, for example two.
Claim 7
Dependent Claim
32 words
A plant as claimed in claim 5, characterized by said stamping means including a third stamping mechanism for imparting to the strip material a third number of securing tabs, for example one.
Claim 8
Dependent Claim
34 words
A plant as claimed in claim 1, characterized by said stamping means including a fourth stamping mechanism for stamping out in the strip material elongated openings for accommodating other plates in the finished plate.
Claim 9
Dependent Claim
50 words
A plant as claimed in claim 7, characterized in that there is a forming tool for forming bulges in the strip material in the vicinity of the openings to accommodate other plates and preferably comprising a vertically movable press member for depressing into a bulge forming depression in a seat.
Claim 10
Dependent Claim
28 words
A plant as claimed in claim 8, characterized in that the forming tool is disposed following the profile former seen in the feed direction of the strip material.
Claim 11
Dependent Claim
41 words
A plant as claimed in claim 1, characterized by said stamping means including a fifth stamping mechanism for stamping out in the strip material recesses for permitting a bending of a plate made of the strip, said recesses being preferably triangular.
Claim 12
Dependent Claim
24 words
A plant as claimed in claim 10, characterized in that the fourth and fifth stamping mechanisms include movable stamp members disposed above fixed dies.
Claim 13
Dependent Claim
52 words
A plant as claimed in claim 1, characterized in that there are positioning means connected to the stamping means for retaining the moving strip fixed relative to said stamping means during a stamping operation, said positioning means being movable during the stamping operation at substantially the same speed as the strip material.
Claim 14
Dependent Claim
33 words
A plant as claimed in claim 1, characterized in that the stamp member includes an inclined upper surface, the topmost portion of which is generally pointed while its lowermost portion is gently rounded.
Claim 15
Dependent Claim
27 words
A plant as claimed in claim 1, characterized in that there is at least one roll provided with enlargements to impress stiffening grooves into the strip material.
Claim 16
Dependent Claim
36 words
A plant as claimed in claim 1, characterized in that the profile former includes at least one pair of rollers with one roller of each pair being abuttable with one portion solely of the strip material.
Claim 17
Dependent Claim
20 words
A plane as claimed in claim 15, characterized in that the rollers are operable to feed the strip material along.
Claim 18
Dependent Claim
45 words
A plane as claimed in claim 1, characterized in that the movements of the stamping means, the profile former means and the shearing means are controlled by a pulse transmItter the pulses of which are releasable in a customary manner by an arbitrary programming device.
Claim 19
Dependent Claim
54 words
A plant as claimed in claim 17, characterized in that the programming device includes an exchangeable programming cylinder having projections forming a program and a number of switches connected to the pulse transmitter for actuation on by said projections, the program cylinder being rotatable in dependence of the feeding speed of the strip material.
Claim 20
Dependent Claim
34 words
A plant as claimed in claim 18, characterized in that the program cylinder is rotatable at a variable number of revolutions to yield plates having lengths varying in dependence of the number of revolutions.
Claim 21
Dependent Claim
35 words
A plant as claimed in claim 19, characterized in that the program cylinder is connected to a wheel sensing the feeding speed of the strip material through a transmission device having a variable gear ratio.
Claim 22
Dependent Claim
61 words
A plant as claimed in claim 20, characterized in that the transmission device includes a conical drum connected to the sensing wheel besides a wheel abutting on the drum, driven by the drum and provided on a shaft parallel to a generatrix of the drum, said shaft being adapted to drive the program cylinder, said wheel being adjustable along the shaft.
Claim 23
Dependent Claim
129 words
A plant for forming strip material into a plurality of individual formed members, said plant comprising strip supply means, at least one forming mechanism of the stamping and forming type, shearing mechanism and strip feed means for continuously feeding strip material through said forming and shearing mechanisms, mounting means for mounting at least said forming mechanism for controlled reciprocatory movement longitudinally of the direction of strip feed, and forming mechanism feed means for feeding said forming mechanism, said forming mechanism feed means including fluid motor means operable to advance said forming mechanism at substantially the same speed as the speed imparted to a strip by said strip feed means, and latch means carried by said forming mechanism for latching said forming mechanism temporarily to a strip for movement therewith.
Claim 24
Dependent Claim
129 words
A plant for forming strip material into a plurality of individual formed members, said plant comprising strip supply means, at least one forming mechanism of the stamping and forming type, shearing mechanism and strip feed means for continuously feeding strip material through said forming and shearing mechanisms, mounting means for mounting at least said forming mechanism for controlled reciprocatory movement longitudinally of the direction of strip feed, and forming mechanism feed means for feeding said forming mechanism, said forming mechanism feed means including fluid motor means operable to advance said forming mechanism at substantially the same speed as the speed imparted to a strip by said strip feed means, and latch means carried by said forming mechanism for latching said forming mechanism temporarily to a strip for movement therewith.
Claim 25
Dependent Claim
28 words
The plant of claim 22 wherein strip driven programmer means are provided for the timed actuation of said fluid motor means, said latch means and said forming mechanism.
Claim 26
Dependent Claim
18 words
The plant of claim 22 together with lock means for locking said forming mechanism in a fixed positon.
Claim 27
Dependent Claim
34 words
The plant of claim 24 wherein strip driven programmer means are provided for the timed actuation of said fluid motor means, said latch means and said forming mechnism, and for unlocking said lock means.
Claim 28
Independent Claim
127 words
A method of forming corner and edge members of the plate and fitting type for cases, packing containers and like receptacles from strip material, said method comprising the steps of continuously feeding said strip material, performing in sequence a plurality of operating steps on said strip by separate tool means while separately moving a plural certain of the tool means at the same rate as the strip material; said operating steps including in sequence at least one stamping step wherein tabs are struck from the strip material, a forming step and a shearing step, and said stamping set being performed in an upwardly striking operation to effect an upward projection of the tabs thereby facilitating the subsequent feeding of the strip material through the following tool means.
Claim 29
Independent Claim
127 words
A method of forming corner and edge members of the plate and fitting type for cases, packing containers and like receptacles from strip material, said method comprising the steps of continuously feeding said strip material, performing in sequence a plurality of operating steps on said strip by separate tool means while separately moving a plural certain of the tool means at the same rate as the strip material; said operating steps including in sequence at least one stamping step wherein tabs are struck from the strip material, a forming step and a shearing step, and said stamping set being performed in an upwardly striking operation to effect an upward projection of the tabs thereby facilitating the subsequent feeding of the strip material through the following tool means.
Claim 30
Dependent Claim
29 words
The method of claim 26 wherein each of said certain tool means is latched to the strip material for movement therewith during the performing of the respective operating step.
Claim 31
Dependent Claim
29 words
The method of claim 27 wherein each of said certain tool means has a normal position and is locked therein between the performing of the respective operating step thereby.
Claim 32
Dependent Claim
36 words
The method of claim 28 wherein the performing of each operating step and the moving, latching and locking of each of said certain tool means is effected by remote programming means actuated by the moving strip.
Claim 33
Dependent Claim
35 words
The method of claim 27 wherein the performing of each operating sTep, and the moving and latching of each of said certain tool means is effected by remote programming means actuated by the moving strip.
Claim 34
Dependent Claim
33 words
The method of claim 26 wherein the performing of each operating step, and the moving of each of said certain tool means is effected by remote programming means actuated by the moving strip.
Claim 35
Dependent Claim
22 words
The method of claim 31 wherein the programming is effected at a point located intermediate the stamping step and the shearing step.
Claim 36
Dependent Claim
22 words
The method of claim 31 wherein the programming is effected at a point located intermediate the stamping step and the forming step.
Claim 37
Dependent Claim
25 words
The method of claim 26 wherein the forming step is a continuous rolling step and the continuous feeding of the strip material is effected thereby.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |