US3807046A - Tube cutter - Google Patents
Tube cutter Download PDFInfo
- Publication number
- US3807046A US3807046A US00243936A US24393672A US3807046A US 3807046 A US3807046 A US 3807046A US 00243936 A US00243936 A US 00243936A US 24393672 A US24393672 A US 24393672A US 3807046 A US3807046 A US 3807046A
- Authority
- US
- United States
- Prior art keywords
- carrier
- base
- tube
- cutter
- cutter blade
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/169—Hand held tube cutters
Definitions
- the carrier is biased toward the base member to urge the cutting edge of the blade into a protected re- [56] References Cited lationship with the base to avoid injury to the user UNITED sTjATEs PATENTS
- the base includes a flat bottom surface permitting the 627,711 6/1899 Smlth 30/112 X t o] to be also used by resting it on a flat urface and 3 53 pressing down on the carrier with the users hand.
- the present invention comprehends an improved tube cutter utilizing such a knife blade having improved means for manipulating the blade in the tube cutting operation. Further, the present invention comprehends such a tube cutter having improved means for effectively precluding injury to the user by the sharp cutting blade edge when the tool is not in use, such as when the tool is stored in a tool box.
- the invention comprehends providing such a tube cutter having a base having a flat bottom surface, means on the base for retaining a tube to be cut to extend parallel to the bottom surface, a cutter blade having a sharp leading cutting edge, a carrier, means mounting the carrier on the base for pivotal movement about an axial parallel to the bottom surface, and means connecting the cutter blade to the carrier to pass the cutting edge transversely through a tube 1 retained by the retaining means as an incident of pivoting the carrier toward the base, the tube cutter being adapted selectively to be held in a users hand with the fingers underlying the bottom surface and the thumb or palm of the users hand engaging the carrier to urge the cutter blade through a tube retained by the retaining means as an incident of a manual squeezing action, or to have the base bottom surface rest on a horizontal support surface and have the carrier pressed down by a users hand to urge the cutter blade through the tube retained by the retaining means.
- the carrier may be provided with manipulating means for pivoting the carrier against the action of a spring arranged to bias the carrier toward the base thereby to open the tool for insertion of the tubing to be cut into holding relationship with the retaining means.
- the base member and retaining means may cooperatively define means for sheathing the sharp edge of the cutting blade as a result of the biasing action of the spring to a storage position of the tool.
- the spring may include a mid-portion encircling the means pivotally mountingthe carrier on the base and having opposite end portions egaging the base and carrier, respectively.
- the tool is arranged so that the spring may selectively be reversed to bias the carrier away from the base if desired.
- FIG. 1 is a perspective view of a tube cutter embodying the invention with the users hand and tube being cut being illustrated in dotted lines;
- FIG. 2 is a fragmentary side elevation thereof with the carrier being shown in the cut-start position in dotted lines and the cut-completed position in full lines:
- FIG. 3 is a front end view of the tube cutter
- FIG. 4 is a longitudinal section taken substantially along the line 44 of FIG. 2;
- FIG. 5 is a transverse section taken substantially along the line 5-5 of FIG. 2;
- FIG. 6 is a transverse section taken substantially along the line 66 of FIG. 2.
- a tube cutter generally designated 10 is shown to comprise a base 11 and a carrier 12 to which is secured a cutting blade 13 for use in cutting a tubular element T, such as a plastic tube, rubber hose, etc.
- Carrier 12 is pivotally mounted on base 11 by a suitable pivot means generally designated 14 and is biased to a storage position by a suitable spring means 15. In the storage position, the sharp cutting edge 16 of the cutting blade 13 is effectively sheathed, or covered, by reception thereof in a slotted portion 17 of a tube retaining means 18 carried on the base.
- the carrier when the tool is not in use, the carrier is biased suitably to prevent exposure of the cutting edge of the blade, effectively preventing injury to the user, such as where the tool is stored in a toolbox into which the user, at times, may insert his hand and attempt to locate a desired tool.
- the tool As shown in FIG. 1 of the drawing, the tool is extremely compact with the base and carrier having a similar rectangular lateral configuration. The tool is extremely simple of operation while yet providing an improved, facilitated tube cutting operation.
- base 1 l defines a lower flat surface 19 adapted to rest on a horizontal surface S, such as a table top.
- a horizontal surface S such as a table top.
- the base is adapted to be supported by the users fingers F turned thereunder with the users thumb Th engaging the upper surface 20 of the carrier 12.
- Carrier 12 Upstanding from the base 11 is a pair of uprights 21.
- Carrier 12 includes a pair of outboard depending flanges 22 and a pivot pin 23 extends through flanges 22 and the uprights 21 to pivotally mount the carrier on the base for rotation'about an axis parallel to the bottom flat surface 19 and to the axis of the tube T retained in the holding means 18.
- the spring 15, as shown in FIG. 6, includes a coiled mid-portion 24 turned about the pin 23 between the uprights 21, a first end portion 25 received in a downwardly opening notch 26 in a lug 27 depending from a rear end portion 41 of the carrier, and an opposite end portion 28 engaging the upper surface 29 at the rear of base 11.
- spring 15 effectively comprises a torsion spring biasing the carrier in a counterclockwise direction relative to the base,.as seen in FIG. 2.
- Carrier 12 is further provided with a depending boss 31 to which the blade 13 is secured by suitable means, such as screws 32. As shown in FIG. 3, the cutting edge 16 of the blade extends below the lower end 33 of the boss 31.
- the boss defines a downwardly opening recess 34 which accommodates the tube when the blade 13 is moved fully downwardly therethrough, as shown in FIG. 2.
- the tube holding means 18, as seen in FIG. 1, includes a pair of upstanding bosses 35 spaced apart laterally of the base, i.e., parallel to the axis of pivot pin 23 and defining upwardly opening V-shaped recesses 36 for receiving the tube subjacent the cutting blade 13 when the carrier is pivoted to the open position of FIG. 2.
- the lefthand boss 35 defines an upper surface 37 abutted by the lower surface 33 of the carrier boss 31 to limit the downward movement of the blade between the bosses 35 and thereby prevent damage to the sharp cutting edge 16 and tip 30 after the blade has cut fully through the tube.
- the blade edge is further effectively sheathed, or covered, by the bosses 35 in the storage arrangement of the tool to which the tool is brought by the action of spring 15 as discussed above.
- the use of the tube cutter is extremely simple.
- the user may alternatively effect a cutting operation by holding the tool in his hand or by placing the tool on a suitable horizontal surface, such as a table top.
- the user merely pivots the carrier in a clockwise direction, as shown in FIG. 2, against the action of spring by pressing down on the rearward extension 41 of the carrier, such as by the rear portion of his thumb, while supporting the base portion on his fingers.
- the tube to be cut is then inserted into the recesses 36 of the holding means to the desired position perpendicular to the flat plane of the cutting blade.
- the carrier is then forced in a counterclockwise direction by the user squeezing his hand with the force being applied by his thumb or palm of his hand directly over the blade 13 to firstly urge the tip 30 into the tube wall and then cause the sharp cutting edge to slice downwardly through the tube wall until the blade reaches the final cut-completed position of FIG. 2 wherein the cutting edge has passed fully through the tube.
- the portions of the tube may then be removed axially while retaining the sharp cutting edge in the enclosed condition thereby avoiding contact of the users fingers with the sharp edge.
- the spring maintains the tool in the blade enclosing condition until such time as the user again pivots the carrier against the action of the spring to the cut-start position shown in dotted lines in FIG. 2 to effect a subsequent cutting operation.
- the user may place the base on the table surface S and press down on the extension 41 to permit the tube to be inserted into the recess 36 below the blade. Thereupon the user may urge the palm of his hand against the portion of the carrier overlying the blade to press the blade through the tube to effect the desired cut. It should be noted that in each of the alternative uses of the tool, the force urging the blade through the tube is directed directly in line with the movement of the cutting edge.
- the upper rear surface portion 44 of carrier 12 and rear portion 38 of lower surface 19 of base 11 may be serrated. Ashallow recess 39 may be provided in the upper front surface portion 40 of the carrier.
- Tube cutter 10 is extremely simple of construction and of minimal size while yet providing the facilitated tube cutting operation discussed above, together with the improved safety feature of the enclosed cutting edge at all times except during the actual tube cutting operation.
- the cutting tip defines an angle of approximately to provide an improved cutting action.
- the blade 13 is readily replaced as desired by the removal thereof permitted by screws 32.
- the tube cutter may be rearranged to cause the carrier 12 to be biased away from the base 11 rather than biased toward the base 11 by a simple reversal of the spring 15.
- the carrier 12 may be provided with a second depending lug 42 spaced forwardly of lug 27 to be disposed forwardly of the vertical plane of the pivot pin 23.
- Lug 42 may be substantially similar to lug 27 being provided with a downwardly opening notch 43 corresponding to notch 26 of lug 27.
- the lug extends only partially across the width of the carrier so that the end portions 25 and 28 of the spring 15 may be slipped past the lug 27 to the side thereof in turning the spring from the full line rearwardly extending position of FIG.
- the spring biases the carrier away from the base for facilitated insertion of the tube to be cut.
- Rearrangement of the spring may be readily effected by suitable conventional means such as a needle nose pliers and, thus, the tool is readily adapted for alternative biasing arrangment as desired by the user.
- a cutter for cutting soft tubing comprising: a base having a flat bottom surface; means on the base for retaining a tube to be cut to extend parallel to said bottorn surface; a cutter blade having a sharp leading cutting edge including a distal tip between opposite rectilinear receding slicing portions; a carrier having an upper surface; means mounting the carrier on the base for pivotal movement about an axial parallel to said bottom surface; means connecting the cutter blade to said carrier to pass said cutting edge transversely through a tube retained by said retaining means as an incident of pivoting said carrier toward said base, said tube cutter being adapted selectively to be held in a users hand with the fingers underlying said bottom surface and the thumb engaging said carrier upper surface adjacent said cutter blade to urge the cutter blade tip firstly into the tube and then cause the cutting edge slicing portions to slice through a tube retained by said retaining means as an incident of a manual squeezing action, or to have said base bottom surface rest on a horizontal support surface and have said carrier pressed down by a users hand
- a cutter for cutting soft tubing comprising: a base having a flat bottom surface; means on the base for retaining a tube to be cut to extend parallel to said bottom surface; a cutter blade having a sharp leading cutting edge including a distal tip between opposite rectilinear receding slicing portions; a carrier having an upper surface; means mounting the carrier on the base for pivotal movement about an axis parallel to said bottom surface; means connecting the cutter blade to said carrier to pass said cutting edge transversely through a tube retained by said retaining means as an incident of pivoting said carrier toward said base, said tube cutter being adapted selectively to be held in a users hand with the fingers underlying said bottom surface and the thumb engaging said carrier upper surface adjacent said cutter blade to urge the cutter blade tip firstly into engages the carrier and the other of which engages the base, means for mounting the spring coaxially of said mounting means axis with said projecting end portions being spaced from said mounting means axis to effect said selective biasing, and integral lug means defining notch means for engaging and re
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- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00243936A US3807046A (en) | 1972-04-14 | 1972-04-14 | Tube cutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00243936A US3807046A (en) | 1972-04-14 | 1972-04-14 | Tube cutter |
Publications (1)
Publication Number | Publication Date |
---|---|
US3807046A true US3807046A (en) | 1974-04-30 |
Family
ID=22920710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00243936A Expired - Lifetime US3807046A (en) | 1972-04-14 | 1972-04-14 | Tube cutter |
Country Status (1)
Country | Link |
---|---|
US (1) | US3807046A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4399726A (en) * | 1981-03-26 | 1983-08-23 | Victor Zacuto | Cutting device |
US4412380A (en) * | 1981-09-02 | 1983-11-01 | Murray Corporation | Hose cutoff device or tool |
US4608754A (en) * | 1983-03-16 | 1986-09-02 | Kloster Kenneth D | Power driven tube cutter |
US4811441A (en) * | 1988-06-10 | 1989-03-14 | Stride Tool Inc., A New York Corporation | Tool for trimming hose and inserting fitting |
US4872455A (en) * | 1987-11-25 | 1989-10-10 | Corvita Corporation | Anastomosis trimming device and method of using the same |
US5125158A (en) * | 1989-02-23 | 1992-06-30 | Casebolt David R | Hand manipulated portable cutting and shearing tool with spreader adaptors |
US5355584A (en) * | 1993-10-21 | 1994-10-18 | Taiwan Shin-Lin Company Ltd. | Hose cutting device |
DE202013100984U1 (en) * | 2013-03-07 | 2014-03-10 | Miroslaw Pastuszka | Separation aid for pipes or profiles |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US627711A (en) * | 1899-02-21 | 1899-06-27 | Smith A Waterman | Combined match-safe and cigar-cutter. |
US693753A (en) * | 1901-05-28 | 1902-02-18 | George W Starrett | Fruit-clipper. |
US717800A (en) * | 1902-04-10 | 1903-01-06 | Charles H Bell | Window-shade-trimming device. |
FR716123A (en) * | 1930-09-03 | 1931-12-15 | Universal pliers for electricians | |
US2693798A (en) * | 1951-04-23 | 1954-11-09 | Edward J Haboush | Device for bending, cutting and extracting the bone nails, nailplates, and the like |
US3261244A (en) * | 1964-02-12 | 1966-07-19 | Smoyak William | Spring attachment for pivotally connected levers |
US3374541A (en) * | 1967-01-27 | 1968-03-26 | Frank W Earnest Jr | Device for cutting flower stems and the like |
-
1972
- 1972-04-14 US US00243936A patent/US3807046A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US627711A (en) * | 1899-02-21 | 1899-06-27 | Smith A Waterman | Combined match-safe and cigar-cutter. |
US693753A (en) * | 1901-05-28 | 1902-02-18 | George W Starrett | Fruit-clipper. |
US717800A (en) * | 1902-04-10 | 1903-01-06 | Charles H Bell | Window-shade-trimming device. |
FR716123A (en) * | 1930-09-03 | 1931-12-15 | Universal pliers for electricians | |
US2693798A (en) * | 1951-04-23 | 1954-11-09 | Edward J Haboush | Device for bending, cutting and extracting the bone nails, nailplates, and the like |
US3261244A (en) * | 1964-02-12 | 1966-07-19 | Smoyak William | Spring attachment for pivotally connected levers |
US3374541A (en) * | 1967-01-27 | 1968-03-26 | Frank W Earnest Jr | Device for cutting flower stems and the like |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4399726A (en) * | 1981-03-26 | 1983-08-23 | Victor Zacuto | Cutting device |
US4412380A (en) * | 1981-09-02 | 1983-11-01 | Murray Corporation | Hose cutoff device or tool |
US4608754A (en) * | 1983-03-16 | 1986-09-02 | Kloster Kenneth D | Power driven tube cutter |
US4872455A (en) * | 1987-11-25 | 1989-10-10 | Corvita Corporation | Anastomosis trimming device and method of using the same |
US4811441A (en) * | 1988-06-10 | 1989-03-14 | Stride Tool Inc., A New York Corporation | Tool for trimming hose and inserting fitting |
US5125158A (en) * | 1989-02-23 | 1992-06-30 | Casebolt David R | Hand manipulated portable cutting and shearing tool with spreader adaptors |
US5355584A (en) * | 1993-10-21 | 1994-10-18 | Taiwan Shin-Lin Company Ltd. | Hose cutting device |
DE202013100984U1 (en) * | 2013-03-07 | 2014-03-10 | Miroslaw Pastuszka | Separation aid for pipes or profiles |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: IMPERIAL CLEVITE INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:I-T-E IMPERIAL CORPORATION;REEL/FRAME:003993/0242 Effective date: 19810928 Owner name: IMPERIAL CLEVITE INC.,ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:I-T-E IMPERIAL CORPORATION;REEL/FRAME:003993/0242 Effective date: 19810928 |
|
AS | Assignment |
Owner name: CLEVITE INDUSTRIES INC., A CORP. OF DE. Free format text: MERGER;ASSIGNOR:IMPERIAL CLEVITE INC., A PA. CORP. (MERGED INTO);REEL/FRAME:004600/0610 Effective date: 19860615 Owner name: CLEVITE INDUSTRIES INC., A CORP. OF DE.,STATELESS Free format text: MERGER;ASSIGNOR:IMPERIAL CLEVITE INC., A PA. CORP. (MERGED INTO);REEL/FRAME:004600/0610 Effective date: 19860615 |
|
AS | Assignment |
Owner name: PULLMAN COMPANY, THE, A DE. CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CLEVITE INDUSTRIES INC.,;REEL/FRAME:005165/0550 Effective date: 19890811 |