US2398840A - Cutter attachment for hand punches - Google Patents
Cutter attachment for hand punches Download PDFInfo
- Publication number
- US2398840A US2398840A US55236544A US2398840A US 2398840 A US2398840 A US 2398840A US 55236544 A US55236544 A US 55236544A US 2398840 A US2398840 A US 2398840A
- Authority
- US
- United States
- Prior art keywords
- cutter
- hand
- plunger
- stem
- cutter attachment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9447—Shear type
Definitions
- the present invention relates to new and useful improvements in cutters, and more particularly to a formerly conventional manually operable punch press arranged and adapted more especially for cutting holes in sheet metal and the invention has for its primary object to provide a cutter adapted for detachable engagementto the plunger of the press and which may be easily removed and replaced when desired.
- a further object is to provide a device of this character of simple and practical construction
- Figure 1 is a side elevational view showing the cutter in position on the plunger element and with parts broken away and shown in section.
- Figure 2 is a similar view taken at right angles to Figure 1;
- Figure 3 is a top plan View of the bottom cutter.
- the numeral 5 designates the lower end of the plunger of a hand-operated press, the lower edge of the plunger being formed with a transverse slot 6 in its lower end adapted for receiving a corresponding transverse rib or lug l on the flanged head 8 of a stem 9 forming an extension for the plunger.
- the stem 9 is held in position at the lower end of the plunger 5 by means of a nut l0 threaded on the plunger and engaging the head 8 of the stem.
- the lower end of the stem 9 is provided adjacent its lower end with reduced flattened shank side face portions I! and adapted for conformably seating in a socket 12 formed in a cutter member l3 which is secured on the reduced lower end of the stem by means of a set screw I4.
- said shank and socket may be changed as to the parts 9 and 13, but the provision and arrangement shown is practical and the more preferable.
- the cutter I3 is of rectangular shape in cross section and is beveled at its lower edge, as at [5,
- the cutter I3 cooperates with a stationary cutter I! secured to one side of a block l8 by means of a flange 19 at one side of the block and a retaining plate 20 secured to an opposite side of the block by means of a set screw 2
- the block 18 is secured to the base plate 22 of the punch by means of a stud 23.
- the cutter I1 is likewise beveled at its upper edge, as shown at 24 in, Figure 1 of the drawing. It is, of course, understood that the stationary cutter l1 is'supported firmly in position and the movable cutter I3 is positioned for vertical reciprocation to take its cutting edge past yet in close contiguity to the cutting edge of said stationary cutter.
- the work is held by the hand of the operator on the stationary cutter ll and the hand lever for the press (not shown) is then pulled down to move the cutter l3 downwardly to cooperate with the cutter ll to cut through the work.
- the work is progressively moved during the cutting action to shear the size of cutdesired and the work is turned easily by hand in order to cut around the edges of an opening to complete the same or shear off a piece of sheet material by a straight continuous cutting thereof.
- a cutting attachment for a hand operated punch press comprising in combination, a movable cutter having a socket therein, a stem adapted for attaching to the lower end of the plunger of the punch press in place of a formerly provided detachable punch and having a reduced lower end portion inserted in said cutter socket, means, detachably securing the cutter on the reduced end portion of the stem, a stationary cutter, and means for securing the stationary cutter to the bed plate of the punch press in cooperating relation to the movable cutter, said last-named means comprising a supporting block adapted for attaching to said bed plate and having a flange at one side thereof for engaging one edge of the stationary cutter, and a retaining plate secured to a relative opposite side of the block for engaging an adjacent edge of the stationary cutter.
Description
. April 23, 1946. L. P. MORIN I CUTTER ATTACHMENT FOR HAND PUNCHES Filed' Sept. 1, 1944 Patented Apr. 23, 1946 UNITED STATES PATENT OFFICE GUTTER ATTACHMENT FOR HAND PUNCHES Leo P. Morin, Port Arthur, Ontario, Canada Application September 1, 1944, Serial No. 552,365
1 Claim.
The present invention relates to new and useful improvements in cutters, and more particularly to a formerly conventional manually operable punch press arranged and adapted more especially for cutting holes in sheet metal and the invention has for its primary object to provide a cutter adapted for detachable engagementto the plunger of the press and which may be easily removed and replaced when desired.
A further object is to provide a device of this character of simple and practical construction,
which is eflicient and reliable in performance, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.
Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming part hereof, wherein like numerals refer to like parts throughout, and in which:
Figure 1 is a side elevational view showing the cutter in position on the plunger element and with parts broken away and shown in section.
Figure 2 is a similar view taken at right angles to Figure 1; and
Figure 3 is a top plan View of the bottom cutter.
Referring now to the drawing in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates the lower end of the plunger of a hand-operated press, the lower edge of the plunger being formed with a transverse slot 6 in its lower end adapted for receiving a corresponding transverse rib or lug l on the flanged head 8 of a stem 9 forming an extension for the plunger. The stem 9 is held in position at the lower end of the plunger 5 by means of a nut l0 threaded on the plunger and engaging the head 8 of the stem.
The lower end of the stem 9 is provided adjacent its lower end with reduced flattened shank side face portions I! and adapted for conformably seating in a socket 12 formed in a cutter member l3 which is secured on the reduced lower end of the stem by means of a set screw I4. Obviously, instead of providing the shank on the plunger stem 9 and the socket l2 in the cutter member [3, said shank and socket provision may be changed as to the parts 9 and 13, but the provision and arrangement shown is practical and the more preferable.
The cutter I3 is of rectangular shape in cross section and is beveled at its lower edge, as at [5,
to form a cutting edge for the cutter, said cutting edge being inclined downwardly toward one side of the cutter, as shown to advantage in Figure 2 of the drawing, whereby to form a substantially sharpened point I 6 at one corner of the cutter.
The cutter I3 cooperates with a stationary cutter I! secured to one side of a block l8 by means of a flange 19 at one side of the block and a retaining plate 20 secured to an opposite side of the block by means of a set screw 2|.
The block 18 is secured to the base plate 22 of the punch by means of a stud 23. The cutter I1 is likewise beveled at its upper edge, as shown at 24 in,Figure 1 of the drawing. It is, of course, understood that the stationary cutter l1 is'supported firmly in position and the movable cutter I3 is positioned for vertical reciprocation to take its cutting edge past yet in close contiguity to the cutting edge of said stationary cutter.
In the operation of the tool, the work is held by the hand of the operator on the stationary cutter ll and the hand lever for the press (not shown) is then pulled down to move the cutter l3 downwardly to cooperate with the cutter ll to cut through the work. The work is progressively moved during the cutting action to shear the size of cutdesired and the work is turned easily by hand in order to cut around the edges of an opening to complete the same or shear off a piece of sheet material by a straight continuous cutting thereof.
It is believed the details of construction, mannor of operation and advantages of the device will be readily understood from the foregoing without further detailed explanation.
Having thus described the invention what I claim is:
A cutting attachment for a hand operated punch press and comprising in combination, a movable cutter having a socket therein, a stem adapted for attaching to the lower end of the plunger of the punch press in place of a formerly provided detachable punch and having a reduced lower end portion inserted in said cutter socket, means, detachably securing the cutter on the reduced end portion of the stem, a stationary cutter, and means for securing the stationary cutter to the bed plate of the punch press in cooperating relation to the movable cutter, said last-named means comprising a supporting block adapted for attaching to said bed plate and having a flange at one side thereof for engaging one edge of the stationary cutter, and a retaining plate secured to a relative opposite side of the block for engaging an adjacent edge of the stationary cutter.
LEO P. MQRIN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55236544 US2398840A (en) | 1944-09-01 | 1944-09-01 | Cutter attachment for hand punches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55236544 US2398840A (en) | 1944-09-01 | 1944-09-01 | Cutter attachment for hand punches |
Publications (1)
Publication Number | Publication Date |
---|---|
US2398840A true US2398840A (en) | 1946-04-23 |
Family
ID=24205019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US55236544 Expired - Lifetime US2398840A (en) | 1944-09-01 | 1944-09-01 | Cutter attachment for hand punches |
Country Status (1)
Country | Link |
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US (1) | US2398840A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685416A (en) * | 1952-04-25 | 1954-08-03 | Smith Harry | Hand-held dispenser for pressuresensitive tapes |
US2911515A (en) * | 1956-10-16 | 1959-11-03 | Taylor Winfield Corp | Narrow lap seam welder |
US2969838A (en) * | 1956-07-23 | 1961-01-31 | Shaffer Tool Works | Combination shearing and shut-off ram |
DE1160274B (en) * | 1955-10-22 | 1963-12-27 | Peddinghaus Paul Ferd Fa | Knife holder for billet shears |
US4540046A (en) * | 1983-09-13 | 1985-09-10 | Nl Industries, Inc. | Shear ram apparatus |
-
1944
- 1944-09-01 US US55236544 patent/US2398840A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685416A (en) * | 1952-04-25 | 1954-08-03 | Smith Harry | Hand-held dispenser for pressuresensitive tapes |
DE1160274B (en) * | 1955-10-22 | 1963-12-27 | Peddinghaus Paul Ferd Fa | Knife holder for billet shears |
US2969838A (en) * | 1956-07-23 | 1961-01-31 | Shaffer Tool Works | Combination shearing and shut-off ram |
US2911515A (en) * | 1956-10-16 | 1959-11-03 | Taylor Winfield Corp | Narrow lap seam welder |
US4540046A (en) * | 1983-09-13 | 1985-09-10 | Nl Industries, Inc. | Shear ram apparatus |
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