TW201529260A

TW201529260A - Knife tool with position limit structure

Info

Publication number: TW201529260A
Application number: TW103102373A
Authority: TW
Inventors: Jian-Long Wu
Original assignee: Sdi Corp
Priority date: 2014-01-22
Filing date: 2014-01-22
Publication date: 2015-08-01
Also published as: TWI561356B

Abstract

The present invention provides a knife tool with a position limit structure, which includes a knife handle, a knife blade and a position limit arm. The position limit arm is arranged on the knife handle and adjacent to an opening of the knife handle. The position limit arm is formed with a position limit part. The position limit part is protruded and extended in a receiving room of the knife handle for being abutted against one side of the knife blade. Accordingly, the present invention is able to effectively restrict the offset of an external end of the knife blade for increasing the stability of the knife blade when in use, thereby allowing to perform a cutting operation precisely.

Description

具有限位結構的刀具Tool with limit structure

本發明係關於一種刀具，尤指一種具有限位結構的刀具者。The present invention relates to a tool, and more particularly to a cutter having a limit structure.

現有之可伸縮的刀具，例如美工刀，皆包含有一刀柄、一調節器及一刀片；調節器可相對移動地設於刀柄中；刀片穿設於刀柄中，且刀片的內端設於調節器上；使用者藉由推動調節器來移動刀片，並進而使刀片的外端突出於刀柄外，或使整個刀片退入刀柄中。The existing retractable cutters, such as utility knives, include a shank, a adjuster and a blade; the adjuster is relatively movable in the shank; the blade is disposed in the shank, and the inner end of the blade is provided On the adjuster; the user moves the blade by pushing the adjuster, and thereby the outer end of the blade protrudes out of the shank or the entire blade is retracted into the shank.

然而現有的刀具的缺點在於，刀片僅有內端與調節器連接，而刀片的其他部份並未與刀柄或任何元件連接，因此刀片容易於使用過程中相對刀柄偏擺；尤其是刀片的外端，其不僅距離唯一連接的調節器最遠，同時也是施力之處，因此刀片外端特別容易於使用時晃動，進而無法穩定精確地進行切割。However, the disadvantage of the prior art tool is that the blade has only the inner end connected to the adjuster, and the other part of the blade is not connected to the shank or any component, so the blade is easy to yaw relative to the shank during use; especially the blade The outer end is not only the farthest from the only connected regulator, but also the place where the force is applied, so the outer end of the blade is particularly easy to shake when in use, and thus the cutting cannot be performed stably and accurately.

為解決現有美工刀的不足及限制，本發明的主要目的在於提出一種具有限位結構的刀具，其可有效限制刀片的偏擺，進而達到提高刀片使用穩定性之目的者。In order to solve the deficiencies and limitations of the existing utility knife, the main object of the present invention is to provide a tool having a limiting structure, which can effectively limit the yaw of the blade, thereby achieving the purpose of improving the stability of the blade.

本發明解決先前技術問題所提出的技術手段主要是提供一種具有限位結構的刀具，其包含有：一刀柄，該刀柄內形成有一沿該刀柄之縱向延伸的長形容室，且該刀柄的一端形成有一與該容室相連通的開口；一刀片，該刀片是可相對移動地設置在該長形容室中；以及一限位臂，設置在該刀柄上，且鄰近於該開口，該限位臂形成有一限位部，該限位部突伸於該長形容室內，供抵靠於該刀片的一側面。The technical means proposed by the present invention to solve the prior art problems mainly provides a tool having a limiting structure, comprising: a shank having an elongated chamber extending in a longitudinal direction of the shank, and the knives are formed One end of the handle is formed with an opening communicating with the chamber; a blade is movably disposed in the elongated chamber; and a limiting arm is disposed on the shank adjacent to the opening The limiting arm is formed with a limiting portion protruding in the elongated chamber for abutting against a side of the blade.

藉由上述之技術手段，本發明可透過位於刀柄開口處的限位臂的限位部來抵靠於刀片的一側面，藉此可有效約束刀片外端的偏移量，以增加刀片使用時的穩定性，進而得以精確地進行切割作業者。According to the above technical means, the invention can abut against a side of the blade through the limiting portion of the limiting arm located at the opening of the shank, thereby effectively restraining the offset of the outer end of the blade to increase the use of the blade. The stability of the cutter is thus accurately performed by the cutter.

為能詳細瞭解本發明的技術特徵及實用功效，並可依照說明書的內容來實現，茲進一步以如圖式所示的較佳實施例，詳細說明如后：In order to understand the technical features and practical functions of the present invention in detail, and in accordance with the contents of the specification, the following is further illustrated in the following preferred embodiments.

請配合參看圖1至圖4，由圖中可看到，本發明的刀具主要包含有一刀柄10、一刀片20及一限位臂30；其中該刀柄10於縱向上延伸，且包含有一刀柄本體11及一刀座12，該刀柄本體11具有一第一端及一第二端，該刀座12穿設於該刀柄本體11內，且突出於該刀柄本體11的第一端外，該刀座12突出於該第一端外的端部形成有一開口14，該開口14鄰近於刀柄本體11的第一端，該刀柄本體11及該刀座12內共同形成有一沿該刀柄10之縱向延伸的長形容室13，該容室13與該開口14相連通；其中刀座12較佳者為金屬材質。該刀片20是可相對移動地設置在該長形容室13中，該刀片20的底側為刀刃21，該刀片20具有一鄰近該開口14的外端。Referring to FIG. 1 to FIG. 4, it can be seen that the tool of the present invention mainly includes a shank 10, a blade 20 and a limiting arm 30; wherein the shank 10 extends in the longitudinal direction and includes a shank body 11 and a shank 12 having a first end and a second end. The shank 12 is disposed in the shank body 11 and protrudes from the shank body 11 An opening 14 is formed at an end of the blade holder 12 that protrudes from the first end. The opening 14 is adjacent to the first end of the shank body 11. The shank body 11 and the blade holder 12 are formed together. An elongated chamber 13 extending in the longitudinal direction of the shank 10, the chamber 13 is in communication with the opening 14; wherein the seat 12 is preferably made of metal. The blade 20 is movably disposed in the elongated chamber 13, the bottom side of which is a blade 21 having an outer end adjacent the opening 14.

該限位臂30是縱向突出於該刀柄本體11的第一端，且鄰近於該開口14，在本實施例中，限位臂30是與刀柄本體11一體成形。該限位臂30的兩側緣承靠在該刀座12上，並且部分突伸於該刀座12內，該限位臂30形成有一限位部32，該限位部32突伸於該容室13內，該限位部32係具有一限位面，並鄰近於該開口14，較佳者，該限位面係為一平面且與該刀片20的側面22約呈平行，以供抵靠於該刀片20的側面22。The limiting arm 30 protrudes longitudinally from the first end of the shank body 11 and is adjacent to the opening 14. In the embodiment, the limiting arm 30 is integrally formed with the shank body 11. The two sides of the limiting arm 30 bear against the seat 12 and partially protrude into the seat 12 . The limiting arm 30 defines a limiting portion 32 , and the limiting portion 32 protrudes from the In the chamber 13, the limiting portion 32 has a limiting surface adjacent to the opening 14. Preferably, the limiting surface is a flat surface and is parallel to the side surface 22 of the blade 20 for It abuts against the side 22 of the blade 20.

該限位臂30另設有一導引結構31，其係位於限位部32遠離該開口14的一側，以供將刀片20導位至該限位部32。在本實施例中，該導引結構31形成有一導位的斜面，該斜面係成形於限位臂30上且朝向該開口14延伸而連接於該限位面，該斜面突伸於該容室13內，該斜面的朝向該開口14之側相對該斜面的遠離該開口14之側更深入該容室13內部。The limiting arm 30 is further provided with a guiding structure 31 on the side of the limiting portion 32 away from the opening 14 for guiding the blade 20 to the limiting portion 32. In this embodiment, the guiding structure 31 is formed with a guiding inclined surface formed on the limiting arm 30 and extending toward the opening 14 to be connected to the limiting surface, the inclined surface protruding from the chamber Within 13 , the side of the bevel facing the opening 14 extends deeper into the interior of the chamber 13 relative to the side of the bevel away from the opening 14 .

在本實施例中，限位臂30較佳者為塑膠材質，但不以此為限。In this embodiment, the limiting arm 30 is preferably made of plastic material, but is not limited thereto.

欲進行切割而將該刀片20推出時，該刀片20外端首先會接觸到導引結構31的斜面，並且順著該斜面而逐漸向該容室13的深度內移動並導位至該限位部32，之後該刀片20外端移動到該限位部32上，並且保持被該限位部32抵靠地繼續向外推出至所欲之長度；由於該限位部32鄰近於該開口14，因此該刀片20外端仍相當接近該限位部32，藉此該刀片20使用時，該限位部32透過抵靠於該刀片20的接近外端處，而可有效約束該刀片20外端的偏移量，進而增加該刀片20使用時的穩定性，以便使用者精確地進行切割作業；另外，藉由導引結構31提供的導位及緩衝作用，可提昇刀片20移動時的流暢性，使刀片20可平穩地導向限位部32與容室13底部間的空間。When the blade 20 is to be pushed out, the outer end of the blade 20 first contacts the slope of the guiding structure 31, and gradually moves toward the depth of the chamber 13 along the slope to be guided to the limit. a portion 32, after which the outer end of the blade 20 is moved to the limiting portion 32, and is kept pushed forward by the limiting portion 32 to a desired length; since the limiting portion 32 is adjacent to the opening 14 Therefore, the outer end of the blade 20 is still relatively close to the limiting portion 32. When the blade 20 is in use, the limiting portion 32 is transparently abutted against the outer end of the blade 20, thereby effectively restraining the outer portion of the blade 20 The offset of the end, thereby increasing the stability of the blade 20 when used, so that the user can accurately perform the cutting operation; in addition, the guiding and cushioning function provided by the guiding structure 31 can improve the smoothness of the blade 20 when moving. The blade 20 can be smoothly guided to the space between the limiting portion 32 and the bottom of the chamber 13.

另請配合參看圖5至圖8，其為本發明的第二實施例，其中結構配置與第一實施例大抵相同，但於第二實施例中，該刀柄本體11A的壁面貫穿有一裝設孔15A，該裝設孔15A延伸至刀柄本體11A的第一端，並且該裝設孔15A與該容室13A相連通，於該裝設孔15A的周緣突出成形有複數卡合塊16A，該等卡合塊16A環繞間隔設置；該限位臂30A不再成形於該刀柄本體11A上，而係設置於該刀柄本體11A上，且蓋設該裝設孔15A，於該限位臂30A的內側面沿著周緣處凹設有複數卡合槽33A，該等卡合槽33A分別套設卡合於該裝設孔15A周緣的該等卡合塊16A，於該限位臂30A遠離該開口14A之側突出有一卡扣部34A，該卡扣部34A卡合抵靠於刀柄本體11A的內壁面，藉此可讓該限位臂30A穩固地結合於該刀柄本體11A上；該限位臂30A朝向該刀片20A的該刀刃21A延伸有一抵靠塊35A，該抵靠塊35A穿設於該容室13A中，且位於該刀刃21A的下方，該抵靠塊35A相較於該刀座12A的內壁面底側而更接近該刀刃21A，藉此可避免該刀刃21A接觸摩擦到金屬刀座12A，而影響該刀刃21A的銳利度；由於該限位臂30A及該抵靠塊35A為塑膠材質，因此縱使該刀刃21A抵靠到該抵靠塊35A，亦可降低對該刀刃21A的銳利度的影響。Please refer to FIG. 5 to FIG. 8 , which is a second embodiment of the present invention, wherein the structural configuration is substantially the same as that of the first embodiment, but in the second embodiment, the wall surface of the shank body 11A has a mounting through the wall. a hole 15A, the mounting hole 15A extends to the first end of the shank body 11A, and the mounting hole 15A communicates with the chamber 13A, and a plurality of engaging blocks 16A are protruded from the periphery of the mounting hole 15A. The engaging block 16A is disposed around the spacer; the limiting arm 30A is no longer formed on the shank body 11A, but is disposed on the shank body 11A, and the mounting hole 15A is disposed at the limit. The inner side surface of the arm 30A is recessed with a plurality of engaging grooves 33A at the periphery thereof, and the engaging grooves 33A are respectively sleeved with the engaging blocks 16A that are engaged with the periphery of the mounting hole 15A, and the limiting arm 30A is disposed on the inner side of the mounting hole 15A. A latching portion 34A is protruded from a side away from the opening 14A, and the latching portion 34A is engaged with the inner wall surface of the shank body 11A, thereby allowing the limiting arm 30A to be firmly coupled to the shank body 11A. The limiting arm 30A extends toward the blade edge 21A of the blade 20A and has an abutting block 35A. The abutting block 35A is disposed in the cavity 13A. Located below the cutting edge 21A, the abutting block 35A is closer to the cutting edge 21A than the bottom side of the inner wall surface of the seat 12A, thereby preventing the blade 21A from contacting and rubbing against the metal blade holder 12A, thereby affecting the blade edge. The sharpness of the 21A; since the limiting arm 30A and the abutting block 35A are made of a plastic material, even if the cutting edge 21A abuts against the abutting block 35A, the influence on the sharpness of the cutting edge 21A can be reduced.

另外，該刀座12A的底側凹設有一缺槽17A，該刀刃21A位於該刀座12A的缺槽17A中；該限位臂30A的底側凹設有一缺槽36A，該限位臂30A的缺槽36A與該刀座12A的缺槽17A相連通；藉此可透過外露於該刀座12A的缺槽17A中的刀刃21A來切割打包帶或繩體，並且由於該刀片20A包覆於該刀座12A及該限位臂30A中，因此可有效避免使用者的手指不慎碰觸到該刀刃21A而受傷。In addition, the bottom side of the holder 12A is recessed with a notch 17A, and the cutting edge 21A is located in the notch 17A of the seat 12A; the bottom side of the limiting arm 30A is recessed with a notch 36A, the limiting arm 30A The notch 36A communicates with the notch 17A of the holder 12A; thereby the package tape or the cord can be cut through the blade 21A exposed in the notch 17A of the holder 12A, and the blade 20A is covered by In the holder 12A and the stopper arm 30A, it is possible to effectively prevent the user's finger from inadvertently touching the blade 21A and being injured.

請再配合參看圖9及圖10，其為本發明的第三實施例，其中結構配置與第二實施例大抵相同，但是導引結構31B的構造不同，第三實施例中，該導引結構31B包含一滾輪，較佳地，該導引結構31B可為一滾輪，另外，亦可為一滾輪與一導位斜面的結合；該滾輪突伸於該容室13B內，並供接觸於該刀片20B的側面22B；當該刀片20B被推出時，該刀片20B的外端會接觸並推動該滾輪，並且該刀片20B外端隨著滾輪的轉動而逐漸向該容室13B的深度內移動，藉此同樣可使該刀片20B外端移動到該限位部32B上，再利用限位部32B抵靠於該刀片20B的接近外端處，進而同樣可有效約束該刀片20B外端的偏移量，以增加該刀片20B使用時的穩定性及方便使用者精確地進行切割作業。Referring to FIG. 9 and FIG. 10 again, it is a third embodiment of the present invention, wherein the structural configuration is substantially the same as that of the second embodiment, but the configuration of the guiding structure 31B is different. In the third embodiment, the guiding structure 31B includes a roller. Preferably, the guiding structure 31B can be a roller. In addition, the roller can be combined with a guiding bevel; the roller protrudes into the cavity 13B and is in contact with the roller. The side 22B of the blade 20B; when the blade 20B is pushed out, the outer end of the blade 20B contacts and pushes the roller, and the outer end of the blade 20B gradually moves toward the depth of the chamber 13B as the roller rotates, Therefore, the outer end of the blade 20B can also be moved to the limiting portion 32B, and the limiting portion 32B can be used to abut the outer end of the blade 20B, thereby effectively limiting the offset of the outer end of the blade 20B. In order to increase the stability of the blade 20B when used and to facilitate the user to accurately perform the cutting operation.

由上述內容可知，不同的修改及改變可在不脫離本發明實質的精神及新穎概念的範圍下加以達成，並且本發明揭露的特定實施例並非用以限制本發明，此一揭露內容係包含落入所附的申請專利範圍的範疇下的所有修改。It is apparent that the various modifications and changes can be made without departing from the spirit and novel concept of the invention, and the specific embodiments disclosed herein are not intended to limit the invention. All modifications in the scope of the appended patent application.

《本發明》
10‧‧‧刀柄
11,11A‧‧‧刀柄本體
12,12A‧‧‧刀座
13,13A,13B‧‧‧容室
14,14A‧‧‧開口
15A‧‧‧裝設孔
16A‧‧‧卡合塊
17A‧‧‧缺槽
20,20A,20B‧‧‧刀片
21,21A‧‧‧刀刃
22,22B‧‧‧側面
30,30A‧‧‧限位臂
31,31B‧‧‧導引結構
32,32B‧‧‧限位部
33A‧‧‧卡合槽
34A‧‧‧卡扣部
35A‧‧‧抵靠塊
36A‧‧‧缺槽"this invention"
10‧‧‧Knife
11,11A‧‧‧Knife body
12,12A‧‧" knife holder
13,13A, 13B‧‧ ‧ room
14,14A‧‧‧ openings
15A‧‧‧Installation hole
16A‧‧‧卡合块
17A‧‧‧ Missing slot
20, 20A, 20B‧‧‧blade
21, 21A‧‧‧ Blade
22,22B‧‧‧ side
30,30A‧‧‧Limited arm
31,31B‧‧‧Guide structure
32,32B‧‧‧Limited
33A‧‧‧ snap groove
34A‧‧‧Snap Department
35A‧‧‧Abutment block
36A‧‧‧ Missing slot

圖1是本發明第一實施例的立體圖。圖2是本發明第一實施例的端視剖面圖。圖3是本發明第一實施例的部分左側視剖面圖。圖4是本發明第一實施例的部分上視剖面圖。圖5是本發明第二實施例的部分右側視圖。圖6是本發明第二實施例的部分右側視剖面圖。圖7是本發明第二實施例的部分元件分解圖。圖8是本發明第二實施例的部分上視剖面圖。圖9是本發明第三實施例的部分元件分解圖。圖10是本發明第三實施例的部分上視剖面圖。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first embodiment of the present invention. Figure 2 is a cross-sectional side elevational view of the first embodiment of the present invention. Fig. 3 is a partial left side sectional view showing the first embodiment of the present invention. Figure 4 is a partial upper sectional view showing a first embodiment of the present invention. Figure 5 is a partial right side view of a second embodiment of the present invention. Figure 6 is a partial right side sectional view showing a second embodiment of the present invention. Figure 7 is an exploded view of a part of the second embodiment of the present invention. Figure 8 is a partial upper sectional view showing a second embodiment of the present invention. Figure 9 is an exploded view of a part of the third embodiment of the present invention. Figure 10 is a partial upper sectional view showing a third embodiment of the present invention.

10‧‧‧刀柄 10‧‧‧Knife

11‧‧‧刀柄本體 11‧‧‧Knife body

12‧‧‧刀座 12‧‧‧ knife holder

14‧‧‧開口 14‧‧‧ openings

30‧‧‧限位臂 30‧‧‧Limited arm

Claims

一種具有限位結構的刀具，其包含有：一刀柄，該刀柄內形成有一沿該刀柄之縱向延伸的長形容室，且該刀柄的一端形成有一與該容室相連通的開口；一刀片，該刀片是可相對移動地設置在該長形容室中；以及一限位臂，設置在該刀柄上，且鄰近於該開口，該限位臂形成有一限位部，該限位部突伸於該長形容室內，供抵靠於該刀片的一側面。A tool having a limiting structure, comprising: a shank having an elongated chamber extending along a longitudinal direction of the shank, and an end of the shank forming an opening communicating with the chamber; a blade that is movably disposed in the elongated chamber; and a limit arm disposed on the shank adjacent to the opening, the limit arm forming a limit portion, the limit A portion projects into the elongated chamber for abutment against a side of the blade.

如請求項1所述之具有限位結構的刀具，其中於該限位部係具有一限位面，供抵靠於該刀片的該側面。A tool having a limit structure according to claim 1, wherein the limiting portion has a limiting surface for abutting against the side of the blade.

如請求項2所述之具有限位結構的刀具，其中該刀柄包含有一刀柄本體及一刀座，該刀柄本體具有一第一端及一第二端，該刀座穿設於該刀柄本體內，且突出於該刀柄本體的該第一端外，該刀座突出於該第一端外的端部形成有該開口，該開口鄰近於該刀柄本體的該第一端，該刀柄本體及該刀座內共同形成有該容室，該限位臂縱向突出於該刀柄本體的第一端，且部分突伸於該刀座內。The tool of claim 2, wherein the shank comprises a shank body and a shank, the shank body having a first end and a second end, the shank being disposed on the knives An opening is formed in the handle body and protruding from the first end of the shank body, the opening of the shank protruding from the outer end of the first end is adjacent to the first end of the shank body, The shank body and the shank are formed in the shank body, and the limiting arm protrudes longitudinally from the first end of the shank body and partially protrudes into the knives.

如請求項3所述之具有限位結構的刀具，其中該限位臂的兩側緣係承靠在該刀座上。A tool having a limit structure as claimed in claim 3, wherein both side edges of the limit arm bear against the seat.

如請求項4所述之具有限位結構的刀具，其中於該限位臂設有一導引結構，該導引結構位於該限位部遠離該開口的一側，以供將該刀片導位至該限位部。The tool of claim 4, wherein the limiting arm is provided with a guiding structure, and the guiding structure is located at a side of the limiting portion away from the opening for guiding the blade to The limit.

如請求項5所述之具有限位結構的刀具，其中該限位臂的該限位面係為一平面，且與該刀片的該側面係實質平行。The tool of claim 5, wherein the limiting surface of the limiting arm is a plane and is substantially parallel to the side of the blade.

如請求項5所述之具有限位結構的刀具，其中該導引結構形成有一導位的斜面，該斜面成形於該限位臂上，且該斜面延伸連接於該限位面，該斜面突伸於該容室內，且該斜面的朝向該開口之側相對該斜面的遠離該開口之側更深入該容室內部。The tool of claim 5, wherein the guiding structure is formed with a guiding inclined surface, the inclined surface is formed on the limiting arm, and the inclined surface is extendedly connected to the limiting surface, the inclined surface is protruding Extending into the chamber, a side of the slope facing the opening extends deeper into the interior of the chamber than a side of the slope away from the opening.

如請求項6所述之具有限位結構的刀具，其中該導引結構形成有一導位的斜面，該斜面成形於該限位臂上，且該斜面延伸連接於該限位面，該斜面突伸於該容室內，且該斜面的朝向該開口之側相對該斜面的遠離該開口之側更深入該容室內部。The tool of claim 6, wherein the guiding structure is formed with a guiding inclined surface, the inclined surface is formed on the limiting arm, and the inclined surface is extendedly connected to the limiting surface, and the inclined surface protrudes Extending into the chamber, a side of the slope facing the opening extends deeper into the interior of the chamber than a side of the slope away from the opening.

如請求項5所述之具有限位結構的刀具，其中該導引結構包含一滾輪，該滾輪突伸於該容室內。A tool having a limiting structure according to claim 5, wherein the guiding structure comprises a roller, and the roller protrudes into the housing.

如請求項6所述之具有限位結構的刀具，其中該導引結構包含一滾輪，該滾輪突伸於該容室內。A tool having a limiting structure according to claim 6, wherein the guiding structure comprises a roller, and the roller protrudes into the housing.

如請求項1至10的任一項所述之具有限位結構的刀具，其中該限位臂朝向該刀片的刀刃延伸有一抵靠塊，該抵靠塊穿設於該容室中，且位於該刀片的該刀刃的下方，該抵靠塊相較於該刀柄的內壁面底側而更接近該刀刃。A tool having a limiting structure according to any one of claims 1 to 10, wherein the limiting arm extends toward the blade edge of the blade with an abutting block, the abutting block is disposed in the chamber and located Below the blade of the blade, the abutment block is closer to the blade than the bottom side of the inner wall surface of the shank.

如請求項11所述之具有限位結構的刀具，其中該刀柄的壁面貫穿有一裝設孔，該裝設孔與該容室相連通，該限位臂設置於該刀柄上，且蓋設該裝設孔。The tool of claim 11, wherein the wall surface of the shank is inserted through a mounting hole, the mounting hole is in communication with the chamber, the limiting arm is disposed on the shank, and the cover is Set the mounting hole.

如請求項12所述之具有限位結構的刀具，其中於該裝設孔的周緣突出成形有複數卡合塊，於該限位臂的內側面沿著周緣處凹設有複數卡合槽，該等卡合槽分別套設卡合於該裝設孔周緣的該等卡合塊。The tool of claim 12, wherein a plurality of engaging blocks are protruded from a periphery of the mounting hole, and a plurality of engaging grooves are recessed along the circumference of the inner side of the limiting arm. The engaging grooves are respectively sleeved with the engaging blocks that are engaged with the periphery of the mounting hole.

如請求項13所述之具有限位結構的刀具，其中於該限位臂遠離該開口之側突出有一卡扣部，該卡扣部卡合抵靠於該刀柄的內壁面。A tool having a limiting structure according to claim 13, wherein a latching portion protrudes from a side of the limiting arm away from the opening, and the latching portion is engaged against the inner wall surface of the shank.

如請求項14所述之具有限位結構的刀具，其中該刀柄的底側凹設有一缺槽，該刀刃位於該刀柄的該缺槽中；該限位臂的底側凹設有一缺槽，該限位臂的該缺槽與該刀柄的該缺槽相連通。The tool according to claim 14, wherein the bottom side of the shank is concavely provided with a notch, the cutting edge is located in the notch of the shank; the bottom side of the limiting arm is concavely provided. a slot, the notch of the limiting arm is in communication with the slot of the shank.

如請求項11所述之具有限位結構的刀具，其中該限位臂係一體成形於該刀柄上。A tool having a limit structure according to claim 11, wherein the limit arm is integrally formed on the shank.

如請求項16所述之具有限位結構的刀具，其中該刀柄的底側凹設有一缺槽，該刀刃位於該刀柄的該缺槽中；該限位臂的底側凹設有一缺槽，該限位臂的該缺槽與該刀柄的該缺槽相連通。The tool according to claim 16, wherein the bottom side of the shank is recessed with a notch, the cutting edge is located in the notch of the shank; the bottom side of the limiting arm is concave a slot, the notch of the limiting arm is in communication with the slot of the shank.

如請求項1所述之具有限位結構的刀具，其中該刀柄包含有一刀柄本體及一刀座，該刀柄本體具有一第一端及一第二端，該刀座穿設於該刀柄本體內，且突出於該刀柄本體的該第一端外，該刀座突出於該第一端外的端部形成有該開口，該開口鄰近於該刀柄本體的該第一端，該刀柄本體及該刀座內共同形成有該容室，該限位臂縱向突出於該刀柄本體的第一端，且部分突伸於該刀座內。The tool of claim 1 , wherein the shank comprises a shank body and a shank, the shank body has a first end and a second end, the shank is disposed on the knives An opening is formed in the handle body and protruding from the first end of the shank body, the opening of the shank protruding from the outer end of the first end is adjacent to the first end of the shank body, The shank body and the shank are formed in the shank body, and the limiting arm protrudes longitudinally from the first end of the shank body and partially protrudes into the knives.

如請求項18所述之具有限位結構的刀具，其中該限位臂的兩側緣係承靠在該刀座上。A tool having a limit structure as claimed in claim 18, wherein both side edges of the limit arm bear against the seat.

2或3所述之具有限位結構的刀具，其中於該限位臂設有一導引結構，該導引結構位於該限位部遠離該開口的一側，以供將該刀片導位至該限位部。The tool having a limiting structure according to 2 or 3, wherein the limiting arm is provided with a guiding structure, the guiding structure is located at a side of the limiting portion away from the opening, for guiding the blade to the Limiting department.

如請求項20所述之具有限位結構的刀具，其中該導引結構形成有一導位的斜面，該斜面成形於該限位臂上，且該斜面延伸連接於該限位部，該斜面突伸於該容室內，且該斜面的朝向該開口之側相對該斜面的遠離該開口之側更深入該容室內部。The tool of claim 20, wherein the guiding structure is formed with a guiding inclined surface, the inclined surface is formed on the limiting arm, and the inclined surface is extendedly connected to the limiting portion, and the inclined surface protrudes Extending into the chamber, a side of the slope facing the opening extends deeper into the interior of the chamber than a side of the slope away from the opening.

如請求項20所述之具有限位結構的刀具，其中該導引結構包含一滾輪，該滾輪突伸於該容室內。The tool of claim 20, wherein the guiding structure comprises a roller, and the roller protrudes into the housing.

如請求項2所述之具有限位結構的刀具，其中該限位臂的該限位面係為一平面，且與該刀片的該側面係實質平行。The tool of claim 2, wherein the limiting surface of the limiting arm is a plane and is substantially parallel to the side of the blade.

如請求項1至10的任一項所述之具有限位結構的刀具，其中該刀柄的壁面貫穿有一裝設孔，該裝設孔與該容室相連通，該限位臂設置於該刀柄上，且蓋設該裝設孔。The tool having a limiting structure according to any one of claims 1 to 10, wherein a wall of the shank is inserted through a mounting hole, the mounting hole is in communication with the chamber, and the limiting arm is disposed on the The mounting hole is provided on the shank.

如請求項24所述之具有限位結構的刀具，其中於該裝設孔的周緣突出成形有複數卡合塊，於該限位臂的內側面沿著周緣處凹設有複數卡合槽，該等卡合槽分別套設卡合於該裝設孔周緣的該等卡合塊。The tool of claim 24, wherein a plurality of engaging blocks are protruded from a periphery of the mounting hole, and a plurality of engaging grooves are recessed along the circumference of the inner side of the limiting arm. The engaging grooves are respectively sleeved with the engaging blocks that are engaged with the periphery of the mounting hole.

如請求項25所述之具有限位結構的刀具，其中於該限位臂遠離該開口之側突出有一卡扣部，該卡扣部卡合抵靠於該刀柄的內壁面。A tool having a limiting structure according to claim 25, wherein a latching portion protrudes from a side of the limiting arm away from the opening, and the latching portion is engaged against the inner wall surface of the shank.

如請求項1至10的任一項所述之具有限位結構的刀具，其中該刀柄的底側凹設有一缺槽，該刀片的刀刃位於該刀柄的該缺槽中；該限位臂的底側凹設有一缺槽，該限位臂的該缺槽與該刀柄的該缺槽相連通。The tool having a limiting structure according to any one of claims 1 to 10, wherein a bottom side of the shank is recessed with a notch, and a blade edge of the blade is located in the notch of the shank; the limit The bottom side of the arm is recessed with a notch, and the notch of the limiting arm communicates with the notch of the shank.

如請求項1至10的任一項所述之具有限位結構的刀具，其中該限位臂係一體成形於該刀柄上。A tool having a limit structure according to any one of claims 1 to 10, wherein the limit arm is integrally formed on the shank.