CA2231259A1 - Safety slabbing knife - Google Patents
Safety slabbing knife Download PDFInfo
- Publication number
- CA2231259A1 CA2231259A1 CA002231259A CA2231259A CA2231259A1 CA 2231259 A1 CA2231259 A1 CA 2231259A1 CA 002231259 A CA002231259 A CA 002231259A CA 2231259 A CA2231259 A CA 2231259A CA 2231259 A1 CA2231259 A1 CA 2231259A1
- Authority
- CA
- Canada
- Prior art keywords
- blade
- base member
- knife
- gripped
- hand
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
- B26B29/02—Guards or sheaths for knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B5/00—Hand knives with one or more detachable blades
Abstract
A hand held cutting tool for slabbing a paper roll comprises a generally planar base member, a cutting blade extending down from the base member, a movable blade guard, and a handle member extending upward from the central portion of the base member.
The handle member is shaped to be gripped in the hand and has a rearward facing boss portion adapted to be received in the palm of the hand and transmit a pushing force. A
latch means for releasably securing the blade guard is disposed on the boss portion of said handle and located so as to be actuated by said gripping action.
The handle member is shaped to be gripped in the hand and has a rearward facing boss portion adapted to be received in the palm of the hand and transmit a pushing force. A
latch means for releasably securing the blade guard is disposed on the boss portion of said handle and located so as to be actuated by said gripping action.
Description
SAFETY SLABBING KNIFE
The present invention relates to a hand held cutting implement and in particular a knife for stabbing rolls of paper stock.
BACKGROUND OF INVENTION
Paper malting and converting machines typically handle large quantities of paper on large rolls. There is frequently a need to remove an outer layer of paper from the roll.
For example, paper rolls can suffer damage to their edges during handling.
This damage is usually removed before the paper is rewound on customer sized rolls or before being delivered to a sheeter. In addition, paper breaks, splits or other damage that can occur as the papE~r web is delivered to t:he winder are routinely flagged in the roll edge and latter stabbed off the roll as it is being rewound or delivered to a converting or printing 1 S operation. Moreover, the layers of paper close to the core of the roll are usually curled too tightly to be used and are dabbed off the core and repulped.
The current: industry standard tool for stabbing paper rolls is what is known as a broke knife. A broke knife resembles a large standard utility knife and uses a replaceable triangular blade. In use, the broke knife is usually held in a clenched fist with the blade depending from the bottom of the hand with the cutting edge facing forward.
The worker walks along the longitudinal length of the paper roll (which can measure up to about 60 feet) pushing the broke knife forward through the paper. This orientation and action is required in order to achieve the high hand pressure required to be exerted to :25 advance the blade through the paper and to cover the entire width of the roll in a uniform raf>id cut. The broke knife has a number of deficiencies which lead to a high incidence of accidental injuries. Stabbing a %4" to 1" layer of paper requires a substantial amount of force to maintain the blade in full depth engagement in the paper roll and to advance the blade through the paper. This can quickly lead to fatigue in the hand or a0 wrist with the result that the blade can come out of contact with the paper and expose the worker's free hand and other body parts to severe injury. Chronic wrist and elbow damage similar to carpal tunnel syndrome and tennis elbow have also been reported by workers wllo repetitively slab paper rolls with a broke knife. Because of the high force required to advance the broke knife through the paper, blade breakage is common leaving a blade fragment projecting out of the paper roll on which a worker's hand or forearm can be accidentally cut. In addition, because the broke knife is used as a free hand tool, the depth and angle of= cut can be inconsistent, depending on the worker's expertise and fatigue level. Because the broke knife blade is fixed in the operative position, the worker is constantly at risk of injury from the exposed blade merely in carrying and handling the broke knife.
It is known to provide a knife with a spring loaded blade guard which can be retracted into the knife handle assembly when the blade is advanced into the workpiece.
One example of such a knife is the Safety Carton Opener manufactured by The OLO
Corp.
of White Plains, New York. This device is intended for opening a carton by cutting the lid therefrom. The device employs a hollow handle assembly shaped to fit in the palm of the hand. A blade projects from the bottom surface and is shielded by a retractable blade guard. While the use of the blade guard greatly reduces the chance of injury when the knife is not in cutting position against the workpiece, the knife is not suitable for use as a slabbinl; knife. In particular, the OLO knife is configured to be used as a draw knife :ZO which is unsuitable for a slabbing application. Due to the high pressure that must be exerted to drive the knife through paper at full blade depth, and the requirement to walk across the longitudinal width of the paper roll, the dabbing operation requires that the knife be pushed in front of the worker. Moreover, while the OLO knife is fitted with a button to permit the blade guard to be retracted into the handle, the button is actuated 1.5 by finger-tip action while gripping the knife handle. Such an arrangement is not optimal for use in a knife assembly that is configured to be pushed through the workpiece b;y the palm of the hand. Finally, the OLO knife has a sole plate that is angled to receive the upper edge of the carton to be cut and accordingly is unsuitable for use on the surface of a paper roll which, while cylindrical in shape, is substantially planar in the 30 immediate vicinity of the cut line.
The present invention relates to a hand held cutting implement and in particular a knife for stabbing rolls of paper stock.
BACKGROUND OF INVENTION
Paper malting and converting machines typically handle large quantities of paper on large rolls. There is frequently a need to remove an outer layer of paper from the roll.
For example, paper rolls can suffer damage to their edges during handling.
This damage is usually removed before the paper is rewound on customer sized rolls or before being delivered to a sheeter. In addition, paper breaks, splits or other damage that can occur as the papE~r web is delivered to t:he winder are routinely flagged in the roll edge and latter stabbed off the roll as it is being rewound or delivered to a converting or printing 1 S operation. Moreover, the layers of paper close to the core of the roll are usually curled too tightly to be used and are dabbed off the core and repulped.
The current: industry standard tool for stabbing paper rolls is what is known as a broke knife. A broke knife resembles a large standard utility knife and uses a replaceable triangular blade. In use, the broke knife is usually held in a clenched fist with the blade depending from the bottom of the hand with the cutting edge facing forward.
The worker walks along the longitudinal length of the paper roll (which can measure up to about 60 feet) pushing the broke knife forward through the paper. This orientation and action is required in order to achieve the high hand pressure required to be exerted to :25 advance the blade through the paper and to cover the entire width of the roll in a uniform raf>id cut. The broke knife has a number of deficiencies which lead to a high incidence of accidental injuries. Stabbing a %4" to 1" layer of paper requires a substantial amount of force to maintain the blade in full depth engagement in the paper roll and to advance the blade through the paper. This can quickly lead to fatigue in the hand or a0 wrist with the result that the blade can come out of contact with the paper and expose the worker's free hand and other body parts to severe injury. Chronic wrist and elbow damage similar to carpal tunnel syndrome and tennis elbow have also been reported by workers wllo repetitively slab paper rolls with a broke knife. Because of the high force required to advance the broke knife through the paper, blade breakage is common leaving a blade fragment projecting out of the paper roll on which a worker's hand or forearm can be accidentally cut. In addition, because the broke knife is used as a free hand tool, the depth and angle of= cut can be inconsistent, depending on the worker's expertise and fatigue level. Because the broke knife blade is fixed in the operative position, the worker is constantly at risk of injury from the exposed blade merely in carrying and handling the broke knife.
It is known to provide a knife with a spring loaded blade guard which can be retracted into the knife handle assembly when the blade is advanced into the workpiece.
One example of such a knife is the Safety Carton Opener manufactured by The OLO
Corp.
of White Plains, New York. This device is intended for opening a carton by cutting the lid therefrom. The device employs a hollow handle assembly shaped to fit in the palm of the hand. A blade projects from the bottom surface and is shielded by a retractable blade guard. While the use of the blade guard greatly reduces the chance of injury when the knife is not in cutting position against the workpiece, the knife is not suitable for use as a slabbinl; knife. In particular, the OLO knife is configured to be used as a draw knife :ZO which is unsuitable for a slabbing application. Due to the high pressure that must be exerted to drive the knife through paper at full blade depth, and the requirement to walk across the longitudinal width of the paper roll, the dabbing operation requires that the knife be pushed in front of the worker. Moreover, while the OLO knife is fitted with a button to permit the blade guard to be retracted into the handle, the button is actuated 1.5 by finger-tip action while gripping the knife handle. Such an arrangement is not optimal for use in a knife assembly that is configured to be pushed through the workpiece b;y the palm of the hand. Finally, the OLO knife has a sole plate that is angled to receive the upper edge of the carton to be cut and accordingly is unsuitable for use on the surface of a paper roll which, while cylindrical in shape, is substantially planar in the 30 immediate vicinity of the cut line.
Accordingly, there is a need for a knife which employs a releasably retractable blade guard and is suitable to be advanced through the workforce at relatively high pressures by a pushing motion.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a hand held cutting tool for advancing; a blade through a workpiece with a pushing motion comprising a generally planar base member for sliding engagement with the workpiece, a cutting blade extending down from the base member, a movable blade guard resiliently biassed to a first lower position in which said cutting blade is covered and movable to a second upper position in which said cutting blade is exposed, a handle member extending upward from the central portion of the base member, said handle member adapted to be gripped in the hand and having a rearward facing boss portion adapted to be received in the palin of the hand and transmit a pushing force therefrom, a latch means for releasably securing the blade guard in the first lower position, said latch means being disposed on said boss portion of said handle and located so as to be actuated by said gripping action. The base member can extend laterally about said blade a sufficient distance to constitute an effective barrier 'preventing the thumb and fingers from contacting said blade when gripped and can include a rearwardly projecting plate for supporting the base of the palm when gripped. The latch means is preferably located so as to be actuated by the base of the thumb when gripped and the handle member preferably has opposed side walls adapted to be squeezed between the thumb and fingers when gripped.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a hand held cutting tool for advancing; a blade through a workpiece with a pushing motion comprising a generally planar base member for sliding engagement with the workpiece, a cutting blade extending down from the base member, a movable blade guard resiliently biassed to a first lower position in which said cutting blade is covered and movable to a second upper position in which said cutting blade is exposed, a handle member extending upward from the central portion of the base member, said handle member adapted to be gripped in the hand and having a rearward facing boss portion adapted to be received in the palin of the hand and transmit a pushing force therefrom, a latch means for releasably securing the blade guard in the first lower position, said latch means being disposed on said boss portion of said handle and located so as to be actuated by said gripping action. The base member can extend laterally about said blade a sufficient distance to constitute an effective barrier 'preventing the thumb and fingers from contacting said blade when gripped and can include a rearwardly projecting plate for supporting the base of the palm when gripped. The latch means is preferably located so as to be actuated by the base of the thumb when gripped and the handle member preferably has opposed side walls adapted to be squeezed between the thumb and fingers when gripped.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG.1 is a right side elevation of the safety Blabber knife in accordance with the present invention.
_S
FIG. 2 is rear elevation of the safety slabber knife in accordance with the present invention.
FIG. 3 is a bottom view of the of the safety slabber knife in accordance with the present invention..
FIG. 4 is a an elevational view of the inside of the right half of the body portion of the safety Blabber knife in accordance with the present invention.
FIG. 5 is a side view of the safety Blabber knife in accordance with the present invention showing how it is held in the hand during use.
L>ETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figures 1 and 2, there is shown a right side elevation of the safety Blabber knife in accordance with the present invention. The knife comprises a body portion generally indicated by reference numeral 2 which includes base member 4 and handle portion 10. Body portion 2 is hollow being formed of left and right halves 3 and 5 joined together along parting line 7 by means of bolt 9 which passes through left half 3 and threads into right half 5.
Base member 4 has a generally flat or planar lower surface 6. In use, lower surface 6 is placed on a nd slides over the surface of the workpiece (not shown) to be cut.
Lower surface 6 can have raised ribs 8 formed therein to both strengthen base member 4 against :30 flexion and reduce the sliding friction with the workpiece. Base member 4 includes deck 11 which projects from the rear of body portion 2.
S
Handle portion 10 projects vertically from the upper surface of base member 4.
Handle pol-tion 10 has rear boss portion 12 which has a generally rearward facing forward thrust surface 14 and a generally upward facing downward thrust surface 16. Handle portion also includes raised projection 7 8 which presents rearward facing abutment surface 5 20.
Blade guard 22 projects downward from opening 24 in the bottom surface 6 of base member 4. Blade guard 22 closely surrounds blade 26 which is fixedly retained in body portion 2 with its cutting edge 28 (shown in phantom in FIG. 1) facing the forward 10 direction.
As shown in Figure 4, blade 26 is retained in body portion 2 between ribs 30, 32 and with notch 34 engaging pin 36, in a manner that is conventional in the utility knife art. Blade guard 22 is pivotally retained in body portion 2 by opposed pins 38 (one of which is shown in Figure 4) which engage corresponding sockets formed in halves 3 and 5. Blade guard 22 is resiliently biassed to the down position by any suitable means, such spring 21 shown in dotted line in Figure 4. Blade guard 22 is releasably locked in the down position by means of button 40. Button 40 is spring mounted to right half 5 and projects through a corresponding opening in left half 3. In its undepressed state, abutment :?0 surface 41 prevents blade guard 22 from being retracted into body portion 2. When button 40 is depressed, abutment surface 41 is brought out of engagement with blade guard 22 permitting it to retract into body portion 2 when pressed against the workpiece.
'?S Figure 5 shows how the safety Blabber knife of the present invention is gripped by the hand when in use. The hand is placed over boss portion 12 with the thumb on the left side 3 and flue fingers on the right side 5. Rear boss portion 12 is configured to conform closely to the palm of the hand. In this position, the base of the thumb naturally engages and depresses blade guard release button 40 permitting blade guard 22 to retract into ..0 body portion 2 when depressed against workpiece 50. When Blabbing workpiece 50, the hand is forced forward and down on boss portion 12. In this position, the thumb and fingers naturally squeeze the vertical surfaces on either side of raised projection 18 thereby contributing to a secure grip on the tool. In addition, thrust surfaces 14 and 16 are disposed to transfer the hand pressure into forward and downward motion of the tool and deck 11 is disposed to transfer downward pressure from the base of the hand to base member 4. Abutment surface 20 engages the cleft in the hand between the thumb and first digit and provides an additional thrust surface.
When dabbing rolled sheet material such as paper or plastic sheeting, it is advantageous to cut the stock at an angle to perpendicular. For this reason, blade 26 may advantageously be disposed at an angle to bottom surface 6 of base member 4.
The use of such an angle tends to cause the edge of the layer that is "undercut" to lift thereby facilitating the removal of the dabbed paper layers from the roll. In practice, an angle to the perpendicular of from about 10° to 30° achieves good results.
In use, the safety Blabber knife of the present invention greatly reduces fatigue and risk of injury. The natural position of the wrist when pushing the knife through the workpiece and the support to the base of the palm provided by deck 11 permits substantial force to be imparted to the tool without inducing fatigue, unlike conventional broke knives which force the wrist into an unnatural bent position. In :?0 addition, the base member 4 which extends a substantial distance from blade 26 protects the fingers at all times from coming into close proximity to the blade. The position of blade guard release button 40 permits it to be depressed without having to use the fingertips ar otherwise vary the grip on the tool. Accordingly, the natural grip for applying a pushing force to the tool also depresses blade guard release button 40. This lessens the amount of handling required to expose the blade and also leaves the thumb and fingers free to establish a secure grip on the tool while the tool is being brought into operative engagement with the workpiece.
For left handed applications, all that is required is to position blade guard release button 40 on the right side of the tool. In the alternative a release button can be provided on both sides of the tool for ambidextrous use.
FIG.1 is a right side elevation of the safety Blabber knife in accordance with the present invention.
_S
FIG. 2 is rear elevation of the safety slabber knife in accordance with the present invention.
FIG. 3 is a bottom view of the of the safety slabber knife in accordance with the present invention..
FIG. 4 is a an elevational view of the inside of the right half of the body portion of the safety Blabber knife in accordance with the present invention.
FIG. 5 is a side view of the safety Blabber knife in accordance with the present invention showing how it is held in the hand during use.
L>ETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figures 1 and 2, there is shown a right side elevation of the safety Blabber knife in accordance with the present invention. The knife comprises a body portion generally indicated by reference numeral 2 which includes base member 4 and handle portion 10. Body portion 2 is hollow being formed of left and right halves 3 and 5 joined together along parting line 7 by means of bolt 9 which passes through left half 3 and threads into right half 5.
Base member 4 has a generally flat or planar lower surface 6. In use, lower surface 6 is placed on a nd slides over the surface of the workpiece (not shown) to be cut.
Lower surface 6 can have raised ribs 8 formed therein to both strengthen base member 4 against :30 flexion and reduce the sliding friction with the workpiece. Base member 4 includes deck 11 which projects from the rear of body portion 2.
S
Handle portion 10 projects vertically from the upper surface of base member 4.
Handle pol-tion 10 has rear boss portion 12 which has a generally rearward facing forward thrust surface 14 and a generally upward facing downward thrust surface 16. Handle portion also includes raised projection 7 8 which presents rearward facing abutment surface 5 20.
Blade guard 22 projects downward from opening 24 in the bottom surface 6 of base member 4. Blade guard 22 closely surrounds blade 26 which is fixedly retained in body portion 2 with its cutting edge 28 (shown in phantom in FIG. 1) facing the forward 10 direction.
As shown in Figure 4, blade 26 is retained in body portion 2 between ribs 30, 32 and with notch 34 engaging pin 36, in a manner that is conventional in the utility knife art. Blade guard 22 is pivotally retained in body portion 2 by opposed pins 38 (one of which is shown in Figure 4) which engage corresponding sockets formed in halves 3 and 5. Blade guard 22 is resiliently biassed to the down position by any suitable means, such spring 21 shown in dotted line in Figure 4. Blade guard 22 is releasably locked in the down position by means of button 40. Button 40 is spring mounted to right half 5 and projects through a corresponding opening in left half 3. In its undepressed state, abutment :?0 surface 41 prevents blade guard 22 from being retracted into body portion 2. When button 40 is depressed, abutment surface 41 is brought out of engagement with blade guard 22 permitting it to retract into body portion 2 when pressed against the workpiece.
'?S Figure 5 shows how the safety Blabber knife of the present invention is gripped by the hand when in use. The hand is placed over boss portion 12 with the thumb on the left side 3 and flue fingers on the right side 5. Rear boss portion 12 is configured to conform closely to the palm of the hand. In this position, the base of the thumb naturally engages and depresses blade guard release button 40 permitting blade guard 22 to retract into ..0 body portion 2 when depressed against workpiece 50. When Blabbing workpiece 50, the hand is forced forward and down on boss portion 12. In this position, the thumb and fingers naturally squeeze the vertical surfaces on either side of raised projection 18 thereby contributing to a secure grip on the tool. In addition, thrust surfaces 14 and 16 are disposed to transfer the hand pressure into forward and downward motion of the tool and deck 11 is disposed to transfer downward pressure from the base of the hand to base member 4. Abutment surface 20 engages the cleft in the hand between the thumb and first digit and provides an additional thrust surface.
When dabbing rolled sheet material such as paper or plastic sheeting, it is advantageous to cut the stock at an angle to perpendicular. For this reason, blade 26 may advantageously be disposed at an angle to bottom surface 6 of base member 4.
The use of such an angle tends to cause the edge of the layer that is "undercut" to lift thereby facilitating the removal of the dabbed paper layers from the roll. In practice, an angle to the perpendicular of from about 10° to 30° achieves good results.
In use, the safety Blabber knife of the present invention greatly reduces fatigue and risk of injury. The natural position of the wrist when pushing the knife through the workpiece and the support to the base of the palm provided by deck 11 permits substantial force to be imparted to the tool without inducing fatigue, unlike conventional broke knives which force the wrist into an unnatural bent position. In :?0 addition, the base member 4 which extends a substantial distance from blade 26 protects the fingers at all times from coming into close proximity to the blade. The position of blade guard release button 40 permits it to be depressed without having to use the fingertips ar otherwise vary the grip on the tool. Accordingly, the natural grip for applying a pushing force to the tool also depresses blade guard release button 40. This lessens the amount of handling required to expose the blade and also leaves the thumb and fingers free to establish a secure grip on the tool while the tool is being brought into operative engagement with the workpiece.
For left handed applications, all that is required is to position blade guard release button 40 on the right side of the tool. In the alternative a release button can be provided on both sides of the tool for ambidextrous use.
While the present invention has been described with reference to the preferred embodiment, many alternatives, modifications and variants will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. A hand held cutting tool for advancing a blade through a workpiece with a pushing motion comprising a generally planar base member for sliding engagement with the workpiece, a cutting blade extending down from the base member, a movable blade guard resiliently biased to a first lower position in which said cutting blade is covered and movable to a second upper position in which said cutting blade is exposed, a handle member extending upward from the central portion of the base member, said handle member adapted to be gripped in the hand and having a rearward facing boss portion adapted to be received in the palm of the hand and transmit a pushing force therefrom, a latch means for releasably securing the blade guard in the first lower position, said latch means being disposed on said boss portion of said handle and located so as to be actuated by said gripping action.
2. The cutting tool of claim 1 wherein said base member extends laterally about said blade a sufficient distance to constitute an effective barrier preventing the thumb and fingers from contacting said blade when gripped.
3. The cutting tool of claim 2 including a rearwardly projecting plate for supporting the base of the palm when gripped.
4. The cutting tool of claim 2 wherein said latch means is located so as to be actuated by the base of the thumb when gripped.
5. The cutting tool of claim 1 wherein said handle member has opposed side walls adapted to be squeezed between the thumb and fingers when gripped.
6. The cutting tool of claim 1 wherein the blade is disposed at an angle of from about 10° to about 30° to a perpendicular to the base member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002231259A CA2231259A1 (en) | 1998-03-06 | 1998-03-06 | Safety slabbing knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002231259A CA2231259A1 (en) | 1998-03-06 | 1998-03-06 | Safety slabbing knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2231259A1 true CA2231259A1 (en) | 1999-09-06 |
Family
ID=29409393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002231259A Abandoned CA2231259A1 (en) | 1998-03-06 | 1998-03-06 | Safety slabbing knife |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2231259A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140305274A1 (en) * | 2011-11-11 | 2014-10-16 | 3M Innovative Properties Company | Integrated label remover |
| WO2019174856A1 (en) * | 2018-03-14 | 2019-09-19 | Bizcut Ltd | Device and method for marking a line on or for cutting of a surface |
| CN111941466A (en) * | 2020-08-17 | 2020-11-17 | 天津中辰智能设备有限公司 | Film disassembling machine |
-
1998
- 1998-03-06 CA CA002231259A patent/CA2231259A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140305274A1 (en) * | 2011-11-11 | 2014-10-16 | 3M Innovative Properties Company | Integrated label remover |
| WO2019174856A1 (en) * | 2018-03-14 | 2019-09-19 | Bizcut Ltd | Device and method for marking a line on or for cutting of a surface |
| CN111941466A (en) * | 2020-08-17 | 2020-11-17 | 天津中辰智能设备有限公司 | Film disassembling machine |
| CN111941466B (en) * | 2020-08-17 | 2024-02-06 | 天津中辰智能设备有限公司 | Film detaching machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4178684A (en) | Comfort grip cutlery | |
| US7007392B2 (en) | Utility knife | |
| US20020095737A1 (en) | Ergonomic hand scraper | |
| US4711384A (en) | Tape dispensing device | |
| US20180194019A1 (en) | Shingle cutting tool | |
| JPS606673B2 (en) | razor tools | |
| CA2420934A1 (en) | Adhesive tape dispenser | |
| CA2231259A1 (en) | Safety slabbing knife | |
| US6122831A (en) | Knife for cutting insulation batts | |
| US4703561A (en) | Thumb mountable cutting tool | |
| US2162117A (en) | Scraper | |
| US4670926A (en) | Paper knife and staple puller head | |
| US7210650B2 (en) | Paper-back tape dispenser | |
| US4205823A (en) | Staple remover | |
| US20020195204A1 (en) | Tape dispenser provided with means to prevent bodily injury of a user thereof | |
| EP0057017B1 (en) | Dispenser for thin sheet or film | |
| US2560673A (en) | Sheet metal cutter | |
| JP3114506U (en) | Cutter | |
| JPH0641834Y2 (en) | Paper cutter | |
| US2215492A (en) | Ice pick | |
| WO2004113214A1 (en) | Tape breaking device | |
| JP4107707B2 (en) | Wrap film storage case | |
| GB2329354A (en) | An implement with an elongate handle | |
| JP6429425B1 (en) | Container dismantling equipment | |
| JPS5812707Y2 (en) | Break-off type blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20010306 |