TWM551115U - Improved circular knife structure - Google Patents

Description

Round knife structure improvement

This creation is related to a round knife, and more specifically to an improved round knife structure that provides a cutting object.

Press, the so-called round knife, is a circular blade as the cutting edge of the cutting object.

However, the current round knife is designed to prevent users from being accidentally touched by the round blade. Therefore, a protection mechanism will be designed. The current protection mechanism is mainly divided into two types, one of which is round when in use. The blade is pushed out, and the round blade is retracted when it is not needed, but the structure required in this way is complicated, and it is not intuitive enough to be used, and it is not convenient to use. Another protection mechanism is mainly to arrange a guard rod with a large outer diameter on one side of the circular blade, and the guard rod is coupled with a spring so that when the guard rod is not subjected to an external force, it is tied to the round blade. One side to prevent the user from touching the circular blade, and when the protection rod is subjected to an external force (such as against the object to be cut), the spring is deformed to allow the protection rod to be offset, so that the round blade is The blade is exposed to enable cutting. However, the use of a spring as a deformed structure not only increases the cost of manufacturing, but also increases the assembly procedure, and since the guard bar and the spring are separated into two separate components, they are easily damaged, resulting in a shortened overall service life.

In addition, the current common round knife is mainly made up of a bolt and a nut. A circular blade is locked on the cutter bar. However, due to the complicated structure of the conventional circular knife, only one angle cutting use is limited in use, and the switching button needs to be pressed when the left and right hands are interchanged, thereby causing an increase in cost and having an adverse effect on use.

In view of this, in order to improve the prior art, the conventional round knife structure has the problems of high manufacturing cost, many assembly procedures, easy damage and short service life, and the conventional circular knife structure is complicated, and only one angle cutting is limited in use. Use, and the left and right hands need to press the switch button, which leads to the problem of cost increase; therefore, the creation provides a round knife structure improvement, and the created tool holder is configured by the deformation section and the slender section of the guard bar. The circular blade can be pushed open at any angle to perform the cutting operation, and the left and right hand can be adjusted and held without the need of a switch button, so the manufacturing cost can be greatly reduced, the program can be reduced, and the program can be used. It provides convenience to reduce the chance of damage and increase the service life.

100‧‧‧ Round knife structure improvement

10‧‧‧Cutter

11‧‧‧Tool body

111‧‧‧Transformation zone

112‧‧‧ card slot

113‧‧‧Flexible lever

114‧‧‧Flexible channel

12‧‧‧Cutter head

121‧‧‧Keyhole

13‧‧‧Team Department

14‧‧‧ pivot

15‧‧‧ buckle groove

20‧‧‧ Guard bars

21‧‧‧ Guard shaft

211‧‧‧Slim section

212‧‧‧ card block

213‧‧‧ deformation section

22‧‧‧Guard head

221‧‧‧ displacement hole

222‧‧‧Snap holes

223‧‧‧ pivoted to the periphery

23‧‧‧Guide turntable

231‧‧‧guide hole

30‧‧‧ grip cover

31‧‧‧ jack

40‧‧‧ round blade

41‧‧‧Lock hole

50‧‧‧Lock parts

51‧‧‧shims

511‧‧‧Perforation

512‧‧‧pressing trough

52‧‧‧Bolts

521‧‧‧ bolt body

522‧‧‧Bolt head

523‧‧‧Repression convex

53‧‧‧ nuts

60‧‧‧ insurance buckle

61‧‧‧Band

62‧‧‧ buckle convex

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

Fig. 2 is a perspective assembled view of the embodiment shown in Fig. 1.

Figure 3 is a cross-sectional view of the embodiment shown in Figure 1.

Fig. 4 is a partial cross-sectional view showing the embodiment shown in Fig. 1, which shows the loose state of the present creation.

Figure 5 is a partial cross-sectional view of the embodiment shown in Figure 1, showing the snap-on state of the present invention.

Figure 6 is a schematic view showing the implementation of the embodiment shown in Figure 1.

Fig. 7 is a schematic view showing another embodiment of the change of the embodiment shown in Fig. 1.

Fig. 8 is a schematic view showing still another embodiment of the change of the embodiment shown in Fig. 1.

In order for your review board to have a better understanding of the features and characteristics of this creation, the following preferred examples are listed below with the following description:

Please refer to FIG. 1 to FIG. 7 , which is a circular knife structure 100 for maintaining the tightness of a circular blade according to a preferred embodiment of the present invention. The utility model mainly comprises a cutter bar 10 , a guard bar 20 and a grip. The sleeve 30, a circular blade 40, a locking component 50 and a safety buckle 60, wherein: referring to Figures 1 to 4, the cutter bar 10 has a blade body 11 and a connecting end of the blade body 11 The cutter head 12 has a lock hole 121.

There is a deformation zone 111 on one side of the shank body 11 , and an elastic channel 114 is disposed at one end of the deformation zone 111 . The elastic channel 113 is symmetrically disposed on both sides of the elastic channel 114 , and the deformation zone 111 is disposed at the other end. There is a card slot 112, and the deformation zone 111 provides a guard bar 20, wherein the guard bar 20 has a guard body 21 and a guard head 22 connected to one end of the guard body 21, the guard body 21 An elongated section 211 connected to the guard head 22, a latching block 212 and a deforming section 213 connected between the elongated section 211 and the latching block 212 are disposed on the elastic channel 114. The elongated section 211 is elongated and elastic, and is easily inclined by an external force; Then, the deformation section 213 is disposed in the deformation zone 111. The deformation section 213 is a two-lined curved strip body, which is elastic and is easily deformed by an external force; and the snap block 212 is fastened to the cutter bar. In the card slot 112, the guard head 22 has a displacement hole 221 and a fastening hole 222, and the periphery of the displacement hole 221 is annularly extended to a pivoting periphery 223, and the pivoting periphery 223 is pivotally disposed. The guide hole 231 of the turntable 23 is such that the outer diameter of the turntable 23 is larger than the outer diameter of the cutter head 12, and the aperture of the displacement hole 221 is larger than the aperture of the lock hole 121.

Referring to FIG. 1 to FIG. 4 , the grip sleeve 30 has an insertion hole 31 extending from one end thereof, and the cutter body 11 of the cutter bar 10 and the guard body 21 of the guard bar 20 are inserted. The grip sleeve 30 is placed over the blade body 11 of the knife bar 10 and the guard body 21 of the guard bar 20 for the user to hold.

Referring to FIGS. 1 to 4, the circular blade 40 has a circular shape and has a sharp edge on the circumference. The circular blade 40 has a locking hole 41, and the locking hole 41 is pivotally opposed to the guide wheel. On one side of the guide hole 231 of the 23, the outer diameter of the circular blade 40 is smaller than the outer diameter of the turntable 23.

Referring to FIGS. 1 to 4, the lock member 50 has a spacer 51, a bolt 52 and a nut 53. The spacer 51 has a through hole 511 and is recessed and adjacent to the side of the spacer 51. The bolt 52 has a bolt body portion 521 and a bolt head portion 522 connected to one end of the bolt body portion 521. The bolt body portion 521 passes through the through hole 511 of the gasket 51. The locking hole 41 of the circular blade 40 and the displacement of the protection rod 20 The hole 221 and the locking hole 121 of the shank 10 are screwed to the nut 53 , and the spacer 51 is pivoted to the side of the circular blade 40 . The nut 53 is disposed on the side of the shank head 12 . A pressing protrusion 523 is protruded from the bolt head 522, and the pressing protrusion 523 is protruded from the bolt head 522. The pressing protrusion 523 is pressed into the pressing groove 512 of the spacer 51. .

Referring to FIG. 1 to FIG. 5 , the buckle 60 has a pivot portion 61 and a buckle protrusion 62 . The cutter head 12 of the cutter bar 10 is provided with a set of portions 13 . The portion 13 has a pivot 14 and a buckle groove 15. The pivot 14 is pivotally positioned by the pivot portion 61 of the buckle 60. The buckle groove 15 is pivotally inserted into the buckle protrusion 62. The latching portion 222 has a latching hole 222. The latching portion 62 of the bumper 60 can be slid or loosened by the external force to be reciprocally displaced. When the latching portion 62 of the bumper 60 is When the fastening hole 222 is disengaged, the guide turntable 23 of the guard bar 20 can be biased by an external force to expose the circular blade 40 outside the guide turntable 23 when the buckle 61 of the buckle 60 is When the fastening hole 222 is fastened, the guard bar 20 is offset by an external force to maintain the guide disc 23 on the outer circumference of the circular blade 40.

Therefore, the above description is a description of a circular knife structure improvement 100 components and their assembly methods provided by a preferred embodiment of the present invention, and then the use characteristics thereof are as follows:

First, when the creation does not need to be used, the user can pull the buckle 60 to the fastening position, so that the buckle protrusion 62 of the buckle 60 is fastened to the buckle. In the fastening hole 222 of the guard head 20 of the guard bar 20 (as shown in FIG. 5), the guard bar 20 is not deformed and displaced by the external force, and due to the guide wheel 23 The outer diameter is larger than the outer diameter of the circular blade 40, so that the turntable 23 can be kept vitreously outside the circumference of the circular blade 40 to prevent inadvertently being cut, and by the rotation of the turntable 23 The rolling displacement can be smoothly pressed against the cutting surface.

When the creation is to be used, the user can pull the buckle 60 to the release position so that the buckle protrusion 62 of the buckle 60 is from the fastening hole 222 of the guard head 22 of the guard 20 Detach (as shown in Figure 4). In this way, the guard bar 20 is no longer braked by the safety buckle 60, and can be deformed and deflected or deflected by the deformation section 213 when subjected to an external force, so that the guide wheel 23 can be pushed open to The blade of the circular blade 40 can be exposed (as shown in Fig. 6) for cutting.

Therefore, the cutter bar 10 of the present invention can make the circular blade 40 push the guide wheel 23 at any angle for cutting operation by the structure of the deformation section 213 and the elongated section 211 of the guard bar 20 (for example, the sixth to the sixth 8)), and this creation does not require a toggle button, but can be adjusted to the left and right hands. Therefore, the manufacturing cost can be greatly reduced, the program can be reduced in assembly, and the convenience can be provided in use. Reduce the chance of damage to increase the service life.

The above description is only for the preferred embodiment provided by the present invention, and is not intended to limit the scope of implementation of the present invention. All of the relevant artisans in the art are equally varied according to the present creation, and should belong to the present invention. The scope of coverage.

100‧‧‧ Round knife structure for maintaining the tightness of the circular blade

10‧‧‧Cutter

11‧‧‧Tool body

111‧‧‧Transformation zone

112‧‧‧ card slot

113‧‧‧Flexible lever

114‧‧‧Flexible channel

12‧‧‧Cutter head

13‧‧‧Team Department

14‧‧‧ pivot

15‧‧‧ buckle groove

121‧‧‧Keyhole

20‧‧‧ Guard bars

21‧‧‧ Guard shaft

211‧‧‧Slim section

212‧‧‧ card block

213‧‧‧ deformation section

22‧‧‧Guard head

221‧‧‧ displacement hole

223‧‧‧ pivoted to the periphery

23‧‧‧Guide turntable

231‧‧‧guide hole

30‧‧‧ grip cover

31‧‧‧ jack

40‧‧‧ round blade

41‧‧‧Lock hole

50‧‧‧Lock parts

51‧‧‧shims

511‧‧‧Perforation

512‧‧‧pressing trough

52‧‧‧Bolts

521‧‧‧ bolt body

522‧‧‧Bolt head

523‧‧‧Repression convex

53‧‧‧ nuts

60‧‧‧ insurance buckle

61‧‧‧Band

62‧‧‧ buckle convex

Claims (8)

The utility model relates to a round knife structure improvement, which comprises: a cutter bar having a cutter shaft and a cutter head connected to one end of the cutter shaft, the cutter head having a lock hole; wherein: the cutter body side The recess has a deformation zone, and one end of the deformation zone is provided with an elastic channel, and the other end is provided with a snap groove. The deformation zone provides a guard bar, wherein the guard bar has a guard body and a body is connected thereto. a guard head of one end, the guard body has a snap block and a deformation section connected with the snap block, the deformation section has elasticity and flexural deformation, and the snap block is snapped to the cutter bar An elongated section is disposed between the deformation section and the guard head, and the elongated section is disposed in the elastic channel, the guard head has a displacement hole, and the displacement hole is disposed on the lock of the cutter rod The hole and the cymbal are further pivotally positioned on the lock hole of the arbor by a locking member shaft set and a circular blade. According to the improvement of the round knife structure described in claim 1, wherein the arbor of the arbor and the guard body of the shank are covered with a grip sleeve, and a sleeve extends from one end of the grip sleeve The blade body of the arbor is inserted into the body of the shank. According to the improvement of the circular knife structure described in claim 1, wherein the deformation section is a two-interlaced curved strip body, which is elastic and susceptible to external force and flexural deformation. The round knife structure improvement according to the first aspect of the patent application, wherein the aperture of the displacement hole is larger than the aperture of the keyhole. The round knife structure improvement according to the first aspect of the patent application, wherein the circular blade has a locking hole, and the locking component has a gasket, a bolt and a nut, the gasket has a perforation and a gasket is recessed on one side and adjacent to the pressing groove of the perforated side, the bolt has a bolt body and a bolt head connected to one end of the bolt body, the bolt body passes through the perforation, the lock hole, The displacement hole and the lock hole are screwed to the nut such that the nut is located on one side of the cutter head, and the gasket is located on one side of the circular blade, and the bolt has a pressing convex portion thereon, and the pressing convex portion The portion protrudes from the bolt head, and the pressing protrusion is pressed into the pressing groove of the gasket. The round knife structure improvement according to the first aspect of the patent application, further comprising a safety buckle having a pivot portion and a buckle convex portion, the cutter head of the cutter bar being provided with a set of components, the set The fixing portion has a pivoting shaft and a buckle slot, wherein the pivoting portion is positioned for pivoting the pivoting portion of the buckle, the buckle slot is configured to pivotally extend through the buckle protrusion, and the guard head has a fastening hole thereon. The buckle of the buckle of the fuse can be buckled or loosened by the external force to reciprocate the displacement. When the buckle of the buckle is disengaged from the buckle, the protector can be subjected to an external force. Offset, so that the circular blade is exposed outside the guard head. When the buckle protrusion of the buckle is fastened to the fastening hole, the protection rod is offset from external force to protect the protection rod The head is maintained outside the round blade. According to the improvement of the round knife structure described in claim 1, wherein the elastic groove of the blade body is symmetrically disposed with an elastic lever. According to the improvement of the round knife structure described in the first application of the patent scope, wherein the protection The periphery of the displacement hole of the club head is annularly protruded and pivoted to the periphery. The pivoting edge of the pivoting shaft is provided with a guide hole of the guide wheel, so that the outer diameter of the guide wheel is larger than the outer diameter of the circular blade.