TWI498231B - Compasses cutter capable of replacing blades - Google Patents

Description

Replaceable knife compass cutter

The invention is a compass cutter structure having a cutting function and a function of adjusting the drawing size.

At present, the conventional compasses on the market can be roughly divided into two types. One is to connect a needle portion and a needle portion with an inverted V-shaped hand-held portion, and the needle portion and the pen portion are opened to the sides when in use. The compass is provided on the body of the long rectangle, and has a needle portion and a needle portion perpendicular to the body, and one of the needle portion and the pen portion is freely slidable on the body. The compass to adjust the radius of the drawn circle; as the drawing needs, there is also a compass on the market that replaces the pen with a blade for the user to directly cut out the circular pattern.

It is worth noting that the conventional compass has a blade that can be cut by the user, but the blade is only a fixed structure type, and there is no user to replace the different types of blades, and the utility still needs to be improved. At the office.

In view of this, the inventors have conceived and studied more deeply, and finally invented a circular knife which can replace the blade.

The present invention provides a compass cutter for a replaceable blade, the main purpose of which is to allow a user to easily and quickly replace a blade of a different configuration. To achieve the foregoing objective, the present invention provides a compass cutter for a replaceable blade, which comprises The utility model comprises: a body, which is a long rod-shaped structure; a working unit, comprising a knife member formed at one end of the bottom of the body, a locking component and a protective cover covering the blade member, the blade member and the The protective cover is respectively provided with a shaft hole and a locking hole, and a receiving portion is disposed between the blade and the protective cover; a replacement blade has a through hole formed on the surface, and the replacement blade is disposed on the blade And the protective cover is disposed in the accommodating portion, and the fastener is sequentially disposed and locked to the lock hole, the through hole and the shaft hole; a positioning unit is freely provided by a slider Slidingly disposed on the body, the bottom end of the slider has a positioning portion, the top end has a hand-held portion, and a holding unit is disposed at the top end of the body.

The replacement blade is disposed between the blade and the protective cover, and is received in the receiving portion, and is sequentially disposed and locked to the locking hole, the through hole, and the The shaft hole allows the user to easily and quickly replace the replacement tool in different configurations.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [simplified description] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiment of the compass cutter of the replaceable blade of the present invention, as shown in FIGS. 1 to 5, comprises: a body 2, at least one extension member 3, a working unit 4, and a replacement blade member 5. a positioning unit 6 and a holding unit 7, wherein the body 2 has a long rod-like structure with a scale on the front end surface, and a plurality of elongated holes 21 are formed in the center of the front end surface, and the body 2 is A rib 22 is formed on the top and the bottom of the body, and a first engaging portion 23 is formed at one end of the body 2. The first engaging portion 23 and the second engaging portion 25 of the end cover 24 are engaged with each other and pass through. A rib 241 of the end cover 24 closes the rib 22, and the other end of the body 2 is provided with a blade box 26, and the blade box 26 is covered by the cover 261 on the body 2. The accommodating space 262 is configured to store the replacement blade 5.

The extension member 3 has a long rod-like structure, and has a scale indication on the front end surface thereof, and a plurality of elongated holes 31 are formed at the center of the front end surface, and the extension member 3 is formed with a rib 32 at the top and the bottom, one end of the extension member 3 The first engaging portion 33 is a second engaging portion 34, and the first engaging portion 33 is engaged with the first engaging portion 23, and the second engaging portion 34 is The first engaging portion 33 and the second engaging portion 25 are correspondingly engaged with each other, wherein a circular hole 331 is defined in the first engaging portion 33, and one of the extending members 3 is embedded on the body 2 or When the other extension member 3 is inserted, the long hole 21 of the outermost side of the body 2 or the outermost part of the other extension member 3 is inserted through a bolt member 35. On the side elongated hole 31 and the circular hole 331 of the extension member 3, the bolt member 35 includes a screw 351 and a nut 352, thereby preventing the extension member 3 from accidentally falling off; the working unit 4, including the molded body a knife member 41 at the bottom of the body 2 and opposite to the other end of the first engaging portion 23, a locking member 42 and a protective cover 43 covering the blade member 41, the blade member 41 and the The protective cover 43 defines a shaft hole 411 and a locking hole 431. A receiving portion 44 is defined between the knife member 41 and the protective cover 43. The inner side surface of the knife member 41 forms a first slot. 412, a second slot 413 and two first slots 414, wherein the first slot 412 is a circular ring groove centered on the shaft hole 411, and the second slot 413 is concave. The two first long grooves 414 are respectively formed on two sides of the circumference of the shaft hole 411, and are long grooves, and the inner side of the protective cover 43 should face The second long slot 414 is formed with two second elongated slots 432. The locking member 42 can further be provided with a washer 421 having a cushioning function when locked; the replacement blade 5, A through hole 51 is defined in the surface, and the replacement blade member 5 is disposed between the blade member 41 and the protective cover 43 and is received in the receiving portion 44, and the fastener 42 is sequentially inserted and locked. a locking hole 431 fixed to the protective cover 43 , a through hole 51 of the replacement blade 5 , and a shaft hole 411 of the blade member 41 , and the protective cover 43 is freely rotated about the locking member 42 , wherein the replacement The blade 5 can be a circular hob 52, wave shown in the figure The wave cutter 53, the punching hob 54, the sharpening blade 55, and the perforation 51 are aligned with the locking hole 431 and the shaft hole 411, and then locked by the locking member 42 for the purpose of simple replacement. In addition, the replacement blade 5 that is not used can be stored in the blade box 26 for later use; the positioning unit 6 includes a slider 61, and the slider 61 is formed on the top and the bottom corresponding to the rib 32. The sliding slot 611 is configured to slidably disposed on the rib 22 of the body 2 and the rib 32 of the extension member 3, and the positioning unit 6 is provided with a positioning switch 62 on the slider 61. When the positioning switch 62 is closed, the positioning unit 6 is restricted from sliding on the body 2 and the extension member 3. The bottom end of the slider 61 has a thimble as a positioning portion 63, and the top end has a hand portion 64. a needle cover 65 is sleeved on the portion 63, and the needle cover 65 is also sleeved on the hand portion 64. The holding unit 7 includes a sliding portion 71, a grip portion 72, and a ratchet set. 73. The sliding portion 71 is slidably disposed on the body 2, and has a circular hole 711 extending through the inner side of the body 2 through a bolt member 74. The hole member 21 and the circular hole 711 of the sliding portion 71, the bolt member 74 includes a screw 741 and a nut 742, thereby preventing the sliding portion 71 from being displaced and falling off, and depending on the point of application of the individual, The sliding portion 71 is adjusted to the right and left positions on the long hole 21, and the holding portion 72 is disposed at the top end of the sliding portion 71. The ratchet set 73 is disposed in the holding portion 72 and is transmitted through an elastic member 731. Connected to the sliding portion 71, thereby allowing the user to When the compass knife of the present invention is used, the grip portion 72 can be rotated in a single direction with respect to the body 2.

The above description is the main components of the embodiment of the present invention and their configuration description.

For the manner of use and the effect of the embodiment of the present invention, please refer to FIG. 1 to FIG. 5 , wherein FIG. 4 is a schematic view of the inner side of the blade member 41 of the present invention, and FIG. 5 is a protective cover 43 of the present invention. A schematic view of the inner side surface, in use, the replacement blade 5 is placed on the accommodating portion 44 between the blade member 41 and the protective cover 43 or the inner side of the blade member 41 according to the outer contour of the replacement blade member 5. In the first sipe 412 or the second sipe 413, the through hole 51 of the replacement blade 5 is aligned with the shaft hole 411 of the arranging member 41, and the inner side of the protective cover 43 is disposed on the arbor The locking hole 431 of the protective cover 43 , the through hole of the replacement blade 5 and the shaft hole 411 of the blade member 41 are sequentially locked by the locking member 42; wherein, the user The locking member 42 can be tightened or loosened according to actual use requirements, so as to fix the replacement tool 5 or the rotating protective cover 43; it is worth noting that when the protective cover 43 is covered, the replacement tool 5 can be covered. Preventing the user from cutting due to inattention. In addition, when the protective cover 43 is covered, a core 56 is placed on the first Between the groove 414 and the second elongated groove 432, the user can directly attach the pen core 56 when drawing the graphic, without removing the replacement tool 5, which is more convenient to use; In addition, a card recess 415 is defined on the left and right sides of the blade member, and a card protrusion 433 is formed on one side of the protective cover 43 , whereby the protective cover 43 can be rotated to open or close. When the positioning portion is inserted, the card protrusion 433 is embedded in the card recess 415 to provide a stable and easy to be pulled by the user.

In addition, referring to FIG. 6 , as shown in FIG. 3 , the present invention is provided with a ratchet set 73 in the grip unit 7 , so that the gripper of the present invention holds the grip unit 7 during operation. The portion 72 can be rotated in a single direction with respect to the body 2. By allowing the user to continuously hold the grip portion 72, the user can easily work without causing the positioning portion 63 of the circular knife to be off-center or the tool is skewed. The figure 7 is drawn or cut out by the user; in addition, the holding unit 7 is inserted through a bolt member 74 and locked to the circular hole 711 of the sliding portion 71 and the long hole at the innermost side of the body 2 21, the user can lock the holding unit 7 at different positions on the elongated hole 21, or lock on the long holes 21, thereby allowing the user to hold the holding unit according to the optimum position. 7 is adjusted to a more convenient position and then locked, and the fun of use is further improved. Since the working unit 4 is formed on the body 2, the user does not adjust the position of the grip unit 7 to affect the work. The operation of unit 4.

Applicant specifically, please refer to FIG. 7 in conjunction with FIG. 3, which is a partial cross-sectional view of the combination of the extension member 3 and the body 2 of the present invention, wherein the first engaging portion 23 of the body 2 A card rib 231 is formed on the end of the card rib 231, and a protrusion 232 is formed at the end of the card rib 231. The first card portion 33 of the extension member 3 is formed with a card slot 332, and a groove 333 is formed in the end of the card slot 332. The first engaging portion 33 is engaged with the first engaging portion 23 The rib 231 is received in the slot 332, and the protrusion 232 is limited to the recess 333, thereby achieving stable card insertion between the extension 3 and the body 2; The present invention can be configured with a plurality of extensions 3 extending and lengthened. The first engaging portion 23 has the same structure as the second engaging portion 34, and the structure of the first engaging portion 33 is formed on the end cover 24. The second engaging portions 25 are substantially the same.

It is to be noted that, as shown in FIG. 8 and FIG. 9 together with FIG. 3 , the present invention can selectively assemble at least one extension 3 on the body 2 according to actual needs of the user, and The positioning unit 6 is freely slidable through the sliding slot 611 of the slider 61 to the rib 22 on the body 2 and the rib 32 on the extension member 3, as shown in FIG. A schematic diagram of the invention in which the extension member 3 is not provided, wherein the end cover 24 is directly fitted to the body 2, and the movement of the positioning unit 6 is restricted by the blocking rib 241, so that the positioning unit 6 is held on the body. In addition, please refer to FIG. 9 , which is a schematic view of the present invention when the plurality of extensions 3 are assembled, wherein the nut 352 of the extension 3 is disposed on the front end of the body 2 and the extension 3 . The positioning unit 6 is slidably disposed on the body 2 and the extension member 3 by the sliding slot 611 at the top and bottom of the slider 61. Therefore, the positioning unit 6 is not received by the nut 352 of the extension member 3. The invention can freely slide on the body 2 and the extension member 3; in addition, the present invention is also provided with a needle cover 65 to prevent the user from accidentally touching. Injured portion 63, and the needle cover 65 in the present invention may further sleeved on the hand-held portion 64 is positioned on the use of freeze, avoidance Lost.

From the above, it is known that the present invention is indeed in line with "industry availability", "novelty", and "progressiveness", and proposes a new type of patent application according to law, praying for review and early granting of patents.

"this invention"

22‧‧‧ ribs

23‧‧‧ First Joint Department

231‧‧‧Carri

232‧‧‧Bumps

24‧‧‧End cover

241‧‧‧stop ribs

25‧‧‧Second Jointing Department

26‧‧‧Knife box

261‧‧‧ lid

262‧‧‧ accommodating space

3‧‧‧Extensions

31‧‧‧ long hole

32‧‧‧ ribs

33‧‧‧The first embedded card department

331‧‧‧ round hole

332‧‧‧ card slot

333‧‧ ‧ Groove

34‧‧‧Second embedded card department

35‧‧‧Bolts

351‧‧‧ screws

352‧‧‧ nuts

4‧‧‧Working unit

41‧‧‧Knife

411‧‧‧Axis hole

412‧‧‧First slot

413‧‧‧Second sipe

414‧‧‧first long trough

42‧‧‧Locker

421‧‧‧ Washer

43‧‧‧ protective cover

431‧‧‧Keyhole

432‧‧‧Second long trough

44‧‧‧ 容 部

5‧‧‧Replacement of blades

51‧‧‧Perforation

52‧‧‧round hob

53‧‧‧Wave hob

54‧‧‧ hole hob

55‧‧‧ pointed blade

56‧‧‧ pen

6‧‧‧ Positioning unit

61‧‧‧ Slider

611‧‧ ‧ chute

62‧‧‧ Positioning switch

63‧‧‧ Positioning Department

64‧‧‧Handheld Department

65‧‧‧ needle cover

7‧‧‧Hand holding unit

71‧‧‧Sliding section

711‧‧‧ round hole

72‧‧‧ grips

73‧‧‧ratchet set

731‧‧‧Flexible parts

74‧‧‧Bolts

741‧‧‧screw

742‧‧‧ Nuts

Figure 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view showing another perspective of an embodiment of the present invention.

Figure 3 is an exploded view of an embodiment of the present invention.

Fig. 4 is a schematic view of the cutting member of the present invention.

Figure 5 is a schematic view of the protective cover of the present invention.

Fig. 6 is a view showing a state of use of an embodiment of the present invention.

Figure 7 is a partial cross-sectional view showing an embodiment of the present invention.

Figure 8 is a schematic view showing an embodiment in which an extension member is not provided in the embodiment of the present invention.

Figure 9 is a schematic view showing a plurality of extension members when an embodiment of the present invention is provided.

2‧‧‧ Ontology

21‧‧‧ long hole

22‧‧‧ ribs

24‧‧‧End cover

241‧‧‧stop ribs

3‧‧‧Extensions

31‧‧‧ long hole

32‧‧‧ ribs

352‧‧‧ nuts

4‧‧‧Working unit

41‧‧‧Knife

42‧‧‧Locker

44‧‧‧ 容 部

6‧‧‧ Positioning unit

63‧‧‧ Positioning Department

7‧‧‧Hand holding unit

742‧‧‧ Nuts

Claims (7)

A compass cutter for a replaceable blade comprises: a body having a long rod-like structure; a working unit comprising a knife member formed at one end of the bottom of the body, a locking member and one of the cover members a protective cover, the arranging member and the protective cover respectively have a shaft hole and a locking hole, and a receiving portion is arranged between the arranging member and the protective cover; a replacement blade has a perforation on the surface, the replacement The cutter member is disposed between the blade member and the protective cover, and is received in the accommodating portion, and the fastener is sequentially disposed and locked to the lock hole, the through hole and the shaft hole; The positioning unit is slidably disposed on the body by a slider, the bottom end of the slider has a positioning portion, the top end has a hand-held portion, and a holding unit is disposed on one side of the body; a first slot and a second slot are formed on the inner side of the blade, wherein the first slot is a circular ring groove centered on the shaft hole, and the second slot is The recess is disposed at the top of the first slot. The compass cutter of the replaceable blade according to claim 1, wherein the body forms a first engaging portion with respect to the other end of the blade member, and at least one extension member and one end cover are added. One end of the extension member is a first insertion portion, and the other end is a second insertion portion. The end cover has a second engagement portion at one end, and the first engagement portion is coupled to the first insertion portion. Correspondingly, the first card engaging portion and the second card engaging portion are correspondingly engaged, and the second card is engaged The joint portion is engaged with the first engaging portion and the second engaging portion. The compass cutter of the replaceable blade according to claim 1, wherein a cutter box is further added to the body for storing the replacement blade. The compass cutter of the replaceable blade according to claim 1, wherein a rib is formed on the top and the bottom of the body, and the slider forms a chute corresponding to the rib at the top and the bottom. Thereby, the positioning unit is slidably disposed on the body. The circular knife of the replaceable blade according to the first aspect of the invention, wherein the inner side of the blade is formed in the longitudinal direction of the axial hole to form two first long grooves, and the inner side of the protective cover Two second long grooves are formed corresponding to the first long groove, whereby a core is placed between the first long groove and the second long groove. The compass cutter of the replaceable blade according to claim 1, wherein the grip unit is provided with a ratchet set, so that the user can use the compass cutter with respect to the body when using the compass cutter Do a single direction of rotation. The compass cutter of the replaceable blade according to claim 1, wherein the replacement tool can be a round hob, a wave hob, a perforating hob or a sharp blade.