CA2910217C - Cutter - Google Patents

Cutter Download PDF

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Publication number
CA2910217C
CA2910217C CA2910217A CA2910217A CA2910217C CA 2910217 C CA2910217 C CA 2910217C CA 2910217 A CA2910217 A CA 2910217A CA 2910217 A CA2910217 A CA 2910217A CA 2910217 C CA2910217 C CA 2910217C
Authority
CA
Canada
Prior art keywords
handle
slot
screw
cutout
spring
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 - Fee Related
Application number
CA2910217A
Other languages
French (fr)
Other versions
CA2910217A1 (en
Inventor
Chung Tsai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hong Jin Industry Co Ltd
Original Assignee
Hong Jin Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hong Jin Industry Co Ltd filed Critical Hong Jin Industry Co Ltd
Priority to CA2910217A priority Critical patent/CA2910217C/en
Publication of CA2910217A1 publication Critical patent/CA2910217A1/en
Application granted granted Critical
Publication of CA2910217C publication Critical patent/CA2910217C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/04Guards or sheaths for scissors, e.g. combined with manicuring appliances
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00Hand shears; Scissors
    • B26B13/12Hand shears; Scissors characterised by the shape of the handles
    • B26B13/14Hand shears; Scissors characterised by the shape of the handles without gripping bows in the handle
    • B26B13/16Hand shears; Scissors characterised by the shape of the handles without gripping bows in the handle spring loaded, e.g. with provision for locking the blades or the handles

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)

Abstract

A cutter includes two handles, a blade, a cutting board, an angle holder, two screws, a spring-biased lock and a releasing element. The cutting board is supported on the first handle. The blade is connected to the second handle. The angle holder includes teeth and a cutout. The angle holder is attached to the first handle by the screws. The releasing element is pivotally connected to the first handle and includes a slot. The spring-biased lock is pivotally connected to the first handle. The spring-biased lock is allowed to engage with the teeth or enter the cutout when an end of the slot is placed against one of the screws. The spring-biased lock is removed from the teeth and the cutout when another end of the slot is placed against the screw.

Description

CUTTER
BACKGROUND OF INVENTION
1. FIELD OF INVENTION
The present invention relates to a cutter for cutting a sheet of wood or melamine and, more particularly, to a cutter for precisely and smoothly cutting a sheet of wood or melamine into a desired shape with a corner of a desired angle.
2. RELATED PRIOR ART
A cutter is used to cut a sheet of wood or melamine into a desired shape with a corner of a desired angle. Such a cutter can be a pair of scissors or a saw.
As disclosed in Taiwanese Utility Model Patent No. M241201, a conventional cutter includes an upper handle 10, a lower handle 20, a blade 30 connected to an end of the lower handle 20, an angle-indicating cutting board 40 connected to an end of the upper handle 10, and an abutment element 50. The abutment element 50 is part of a movable connection mechanism that allows the blade 30 to move relative to the angle-indicating cutting board 40 to reduce a force required to cut a sheet of wood or melamine.
As disclosed in Taiwanese Utility Model Patent No. 595534, another conventional cutter includes a jaw 11 formed at an end of a handle, a blade 12 formed at an end of another handle, an angle-indicating cutting board 20 supported on the jaw 11, and an angle-adjusting element 30 rotationally supported on the angle-indicating cutting board 20. The angle-adjusting element 30 allows a sheet of wood or melamine to be located and kept at a desired angle.

However, the use of the above-mentioned conventional cutters to cut the sheet of wood or melamine is conducted in a step-by-step manner if the sheet of wood or melamine is thick. This is because a user inevitably feels stress and fatigue in his or her hand and has to pause from time to time during the operation. However, the above-mentioned conventional cutters do not include any device to hold the sheet of wood or melamine in position relative to the blade and the cutting board in such a pause. Hence, the user has to align the sheet of wood or melamine to the blade and the cutting board again after such a pause, and this is inconvenient. Moreover, a stroke of cutting might not be perfectly in line with a following stroke of cutting, and an edge of the sheet of wood or melamine is not perfectly rectilinear. Furthermore, the blade tends to be raised from the sheet of wood or melamine, and the user could easily get cut by the blade.
The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
SUMMARY OF INVENTION
According to an aspect of the invention, there is provided a cutter comprising: a first handle; a second handle pivotally connected to the first handle; a cutting board supported on the first handle; a blade connected to the second handle; an angle holder comprising teeth at an edge and a cutout near the teeth; two screws for attaching,the angle holder to the first handle; a releasing element extending between the first handle and the angle holder and comprising: a first end pivotally connected to the first handle by the first screw; a second end opposite to the first end; a button formed at the second end and operable to pivot the releasing element; a slot extending near the button, receiving the second screw, and comprising a first end and a second end, wherein the releasing element can be pivoted relative to the second screw and the angle holder so that the second screw can be abutted against a selected one of the first and second ends of the slot; an elastic restrainer transversely formed near the second end of the slot and adapted for confining the second screw near the second end of the slot; and a cutout corresponding to the cutout of the angle 2a holder; and a spring-biased lock pivotally connected to the first handle, wherein the spring-biased lock is allowed to engage with the teeth or enter the cutout of the angle holder and the cutout of the releasing element when the first end of the slot is placed against one of the screws, wherein the spring-biased lock is removed from the teeth and the cutouts when the second end of the slot is placed against the screw.
One aspect of the present invention provides a cutter for precisely keeping a sheet in position when cutting of the sheet is temporarily stopped.
Another aspect of the present invention provides a cutter with a blade that is kept in position during cutting of a sheet.
Another aspect of the present invention provides a cutter with a blade that can easily be released from a cutting board.
To achieve the above, the cutter includes two handles, a blade, a cutting board, an angle holder, two screws, a spring-biased lock and a releasing element. The handles are pivotally connected to each other.
The cutting board is supported on the first handle. The blade is connected to the second handle. The angle holder includes teeth at an edge and a cutout near the teeth. The angle holder is attached to the first handle by the screws. The releasing element is pivotally connected to the first handle by the first screw and includes a slot. The spring-biased lock is pivotally connected to the first handle. The spring-biased lock is allowed to engage with the teeth or enter the cutout of the angle holder when the first end of the slot is placed against the second screw. The spring-biased lock is removed from the teeth and the cutout when the second end of the slot is placed against the second screw.
Other advantages and features of the present invention will be apparent from the following description referring to the attached drawings.
BRIEF DESCRIPTION OF DRAWINGS
The present invention will be described via detailed illustration of the preferred embodiment referring to the drawings wherein:
FIG. 1 is a perspective view of a cutter according to the preferred embodiment of the present invention;
FIG. 2 is a right side view of the cutter shown in FIG. 1;
FIG. 3 is an exploded view of the cutter shown in FIG. 1;
FIG. 4 is a right side view of the cutter in another position than shown in FIG. 2;
FIG. 5 is a right side view of the cutter in another position than shown in FIG. 4; and FIG. 6 is a right side view of the cutter in another position than
3 shown in FIG. 5.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
Referring to FIGS. 1 through 3, there is a cutter 10 according to the preferred embodiment of the present invention. The cutter 10 includes two handles 12 and 14, a blade 16, a cutting board 20, a releasing element 30, an angle holder 40 and a spring-biased lock 54.
The first handle 12 includes a grip 121 at an end and a jaw 122 at another end. The blade 16 is connected to the jaw 142 of the second handle 14.
The second handle 14 includes a grip 141 at an end and a jaw 142 at another end. The cutting board 20 is supported on the jaw 122 of the first handle 12.
The first handle 12 is pivotally connected to the second handle 14 like in a pair of scissors. A compression spring (not shown) can be provided between the handles 12 and 14 so that they tend to open when they are not squeezed. Accordingly, the blade 16 is away from the cutting board 20, ready to cut a sheet of wood or melamine.
Referring to FIGS. 2 and 3, the angle holder 40 includes an end connected to the jaw 122 of the first handle 12 by a first screw 50 and another end connected to the grip 121 of the first handle 12 by a second screw 52. There is a gap (not numbered) between the angle holder 40 and the first handle 12. The angle holder 40 includes, at an edge, a plurality of teeth 42 for engagement with the spring-biased lock 54 in a manner to be described. There is a cutout 44 in the edge of the angle holder 40, near the teeth 42.
The spring-biased lock 54 includes an end pivotally connected to the
4 jaw 142 of the second handle 14 and a free end that tends to move to the teeth 42 of the angle holder 40. Thus, the free end of the spring-biased lock 54 can selectively be engaged with the teeth 42 of the angle holder 40 or the cutout 44 referring to FIGS. 4 and 5.
The releasing element 30 includes a button 33 formed at an end, a slot 32 near the button 33, an elastic restrainer 323 transversely extending in the slot 32, and a cutout 34 corresponding to the cutout 44 of the angle holder 40. The slot 32 includes two ends 321 and 322. The elastic restrainer 323 is located near the second end 322 of the slot 32.
The releasing element 30 is located in the gap between the first handle 12 and the angle holder 40. The releasing element 30 is movably connected to the angle holder 40 by the first screw 50 at another end.
The slot 32 receives the second screw 52, which is connected to the angle holder 40. Thus, the releasing element 30 can be pivoted relative to the second screw 52 and the angle holder 40. The second screw 52 can selectively be abutted against the end 321 or 322 of the slot 32.
A spring 36 is arranged between the jaw 122 of the first handle 12 and the releasing element 30 so that the spring 36 tends to abut the first end 321 of the slot 32 of the releasing element 30 against the second zo screw 52, which is connected to the angle holder 40. The cutout 34 of the releasing element 30 is aligned to the cutout 44 of the angle holder 40.
Now, the edge of the releasing element 30 does not extend beyond the teeth 42 of the angle holder 40. Accordingly, the spring-biased lock 54 can be engaged with the teeth 42 of the angle holder 40 or inserted in the cutout 44 of the angle holder 40 and the cutout 34 of the releasing element 30 referring to FIGS. 4 and 5.
5 On the contrary, the releasing element 30 can be operated to abut the second end 322 of the slot 32 against the second screw 52, which is connected to the angle holder 40. Now, the edge of the releasing element 30 extends beyond the teeth 42 and the cutout 44 of the angle -- holder 40. Hence, the edge of the releasing element 30 can disengage the spring-biased lock 54 from the teeth 42 of the angle holder 40 or the cutout 44 referring to FIG. 6. Accordingly, the handles 12 and 14 are opened, and the cutter 10 is ready to cut a sheet of wood or melamine.
The teeth 42 of the angle holder 40 are in the vicinity of the spring-biased -- lock 54 referring to FIG. 4.
Referring to FIG. 4, in the beginning of a cutting operation, a user presses the button 33 of the releasing element 30 to bring the second end of the releasing element 30 and the second end 322 toward the second screw 52. Thus, the handles 12 and 14 are opened, and the blade 16 is -- away from the cutting board 20. That is, between the blade 16 and the cutting board 20, there is a gap to receive a sheet of wood or melamine.
Hence, the cutter 10 is ready to cut the sheet.
Then, the user can pivot the grip 121 of the first handle 12 toward the grip 141 of the second handle 14. Thus, the blade 16 is pivoted toward -- the cutting board 20 to cut the sheet. As the closing of the handles 12 and 14 goes on, the blade 16 gets closer to the cutting board 20 while the spring-biased lock 54 rattles beneath the teeth 42.
Referring to FIG. 5, the user can temporally release the handles 12 and 14 and relax for a while before he or she continues the cutting -- operation. The spring-biased lock 54 is automatically engaged with the teeth 42, and the first handle 12 is kept in a position relative to the second
6 handle 14. During the pause, the sheet is kept in position relative to the cutting board 20 and the blade 16. The blade 16 is kept on the sheet, and the odds of the user getting cut by the blade 16 are low. Moreover, the user does not have to align the sheet to the blade 16 and the cutting board 20 again before he or she continues the cutting operation after the pause, and this is convenient. Hence, an edge of the sheet resulting from the entire cutting operation is rendered perfectly rectilinear although the cutting operation is conducted in several discrete phases.
Referring to FIG. 2, the user can operate the releasing element 30 to align the cutout 34 to the cutout 44 again. Thus, the spring-biased lock 54 can be inserted in the cutout 34 and the cutout 44 again. Hence, the handles 12 and 14 are closed.
Referring to FIG. 6, the button 33 is pushed to pivot the releasing element 30 so that the second end 322 of the slot 32 is moved toward the second screw 52 and that the spring-biased lock 54 is remove from the teeth 42 and the aligned cutouts 34 and 44. Accordingly, the handles 12 and 14 can be opened. That is, the releasing element 30 in a releasing mode. There is no need for the user to operate the spring-biased lock 54, which is small and short. Hence, the operation of the cutter 10 is convenient. F-urtherrnore, the user is protected from the spring-biased lock 54 and the angle holder 40. The operation of the cutter 10 is safe.
Moreover, the pivoting of the releasing element 30 can be continued to move the elastic restrainer 323 past the second screw 52. The second end 322 of the slot 32 is placed against a side of the second screw 52 as the elastic restrainer 323 of the releasing element 30 is placed against another side of the second screw 52. The elastic restrainer 323 abuts
7 against the second screw 52 to cause the releasing element 30 to keep the teeth 42 and the cutout 44 from the spring-biased lock 54 even when the handles 12 and 14 are released. That is, the releasing element 30 is kept in the releasing mode. Now, the cutter 10 is in a mode particularly useful for cutting a thin sheet.
The present invention has been described via the detailed illustration of the preferred embodiment. Those skilled in the art can derive variations from the preferred embodiment without departing from the scope of the present invention. Therefore, the preferred embodiment shall not limit the scope of the present invention defined in the claims.
8

Claims (6)

1. A cutter comprising:
a first handle;
a second handle pivotally connected to the first handle;
a cutting board supported on the first handle;
a blade connected to the second handle;
an angle holder comprising teeth at an edge and a cutout near the teeth;
two screws for attaching the angle holder to the first handle;
a releasing element extending between the first handle and the angle holder and comprising:
a first end pivotally connected to the first handle by the first screw;
a second end opposite to the first end;
a button formed at the second end and operable to pivot the releasing element;
a slot extending near the button, receiving the second screw, and comprising a first end and a second end, wherein the releasing element can be pivoted relative to the second screw and the angle holder so that the second screw can be abutted against a selected one of the first and second ends of the slot;
an elastic restrainer transversely formed near the second end of the slot and adapted for confining the second screw near the second end of the slot;
and a cutout corresponding to the cutout of the angle holder; and a spring-biased lock pivotally connected to the first handle, wherein the spring-biased lock is allowed to engage with the teeth or enter the cutout of the angle holder and the cutout of the releasing element when the first end of the slot is placed against one of the screws, wherein the spring-biased lock is removed from the teeth and the cutouts when the second end of the slot is placed against the screw.
2. The cutter according to claim 1, further comprising a spring for biasing the releasing element so that the first end of the slot is kept against the second screw.
3. The cutter according to claim 1, wherein the first handle comprises a grip formed at an end and a jaw formed at another end.
4. The cutter according to claim 3, wherein the cutting board is supported on the jaw of the first handle.
5. The cutter according to claim 1, wherein the second handle comprises a grip formed at an end and a jaw formed at another end.
6. The cutter according to claim5, wherein the blade is connected to the jaw of the second handle.
CA2910217A 2015-10-22 2015-10-22 Cutter Expired - Fee Related CA2910217C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2910217A CA2910217C (en) 2015-10-22 2015-10-22 Cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2910217A CA2910217C (en) 2015-10-22 2015-10-22 Cutter

Publications (2)

Publication Number Publication Date
CA2910217A1 CA2910217A1 (en) 2017-04-22
CA2910217C true CA2910217C (en) 2017-10-31

Family

ID=58551718

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2910217A Expired - Fee Related CA2910217C (en) 2015-10-22 2015-10-22 Cutter

Country Status (1)

Country Link
CA (1) CA2910217C (en)

Also Published As

Publication number Publication date
CA2910217A1 (en) 2017-04-22

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Effective date: 20211022