TWM522833U - Roller knife - Google Patents

Description

Roller knife

The present invention relates to a cutting tool, and more particularly to a roller knife.

Generally, the roller cutters commonly used in the market are suitable for cutting large-area or multi-layer fabrics, papers, etc. The roller cutter has a grip portion and a circular blade pivotally connected to one end of the grip portion, when the user applies the roller cutter When pushing forward, the circular blade will rotate accordingly, which will produce the effect of cutting. However, the circular blade of the roller knife is generally exposed, and the user may easily cut the hand if it is careless. It is more likely to become a weapon with lethality around;

Moreover, in order to meet different cutting requirements or cutting conditions, the user needs to frequently change the blades of different types. However, the circular blade of the general roller knife is screwed to the grip portion, so when the user wants When replacing the circular blade, the screw needs to be loosened to remove the blade, and when the blade is mounted, the screw needs to be locked again to complete the process of replacing the blade, and the process of changing the blade is very cumbersome and inconvenient. It is necessary to have a roller knife with a protective function and a convenient tool change.

The present invention provides a roller cutter whose main purpose is to provide a roller cutter with a protective function and a convenient tool change.

In order to achieve the foregoing purposes, the new roller blade, as shown in Figures 1 to 7, includes:

a housing having an accommodating space therein, the housing includes a front housing and a rear housing, the front housing has a pivoting end and an end, and the pivoting end is defined The direction of the end is an actuating direction, the front housing has a sliding hole and a continuous perforation at the pivoting end, the front housing further has a pushing hole, and the rear housing has a tool change pushing hole;

a pushing member having a pushing portion and a latching portion, wherein the pushing member is slidably disposed in the accommodating space along the moving direction, and the stacking portion is located in the pushing hole of the front housing a portion of the pushing portion is exposed to the front housing, and the locking protrusion extends through the sliding hole;

a sliding member is disposed in the accommodating space, the sliding member is slidably coupled to the pushing member along the moving direction, and one end of the sliding member extends to form a fastening portion, the fastening portion has a clamping angle, one side of the sliding member has a pressing portion;

At least one blade, wherein the blade is pivotally coupled to the pivoting end of the front housing, the blade having a through hole;

a latch having a head segment and a tail segment connected in sequence, defining a direction in which the head segment extends to the tail segment is a replacement direction, the tail segment having a ring groove extending through the through hole and the through hole a hole having a portion of the tail groove extending into the accommodating space, and when the sliding member moves in the direction of the pin, the two clamping angles of the locking portion are engaged in the ring a groove, when the sliding member moves away from the pin, the two clamping angles of the fastening portion are disengaged from the ring groove, and the pin is free to move along the displacement direction;

a protective jacket disposed at a pivoting end of the front casing, the protective casing being pivotally coupled to the pushing member, the protective casing having a mandrel hole extending through the fixing hole portion and the fixing hole portion The outer protective sleeve has a peripheral side surface, and the outer peripheral side surface defines a through slot, the through slot is communicated with the mandrel hole, and the blade is inserted into the through slot. When the head segment is locked in the fixing hole portion, the protective cover is restricted by the pin and cannot be pivoted, and when the head segment enters the movable hole portion, the protective cover can freely pivot.

As can be seen from the foregoing, the roller blade of the present invention mainly provides the corresponding convex portion of the protective blade by disposing the blade in the through slot of the protective cover in a state where the user does not use the device. Moving in the direction of the latch, thereby driving the protective cover to move in the direction of the pin, so that the head segment is locked in the fixing hole portion, so that the protective cover is restricted by the pin and cannot be pivoted along the pivoting direction Pendulum, the blade is completely located in the through slot; or when the roller blade is to be used, the pushing portion is pushed away, and the pushing member is moved away from the latch, thereby driving the protective cover to move away from the latch, so that the head segment Disengaging the fixing hole portion into the movable hole portion, so that the protective cover can be freely pivoted along the pivoting direction, so that the blade can expose the through slot of the protective cover for cutting, and since the protective cover faces the object The pivoting in the opposite direction makes the protective jacket closer to the user than the blade, ensuring that the user does not accidentally touch the blade and is injured, thereby achieving the purpose of providing a roller knife with a protective function.

Preferably, the roller cutter of the present invention moves the sliding member away from the latch, so that the two clamping angles of the fastening portion are disengaged from the ring groove, and the latch can follow the replacement direction. Freely moving, at this time, the user can take out the pin from the through hole, and then replace the blade, and when the blade is replaced, move the sliding member toward the pin to make the locking portion The two clamping angles are clamped in the ring groove, so that the pin can not move along the displacement direction, and the card is in a state of being stuck, thereby achieving the purpose of providing a roller knife for replacing the tool.

To enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this new model, please cooperate below.

10‧‧‧ front housing
101‧‧‧ pivot end
End of 102‧‧‧
11‧‧‧Slots
12‧‧‧Locking plate
121‧‧‧Slip hole
122‧‧‧through holes
13‧‧‧Transfer hole
14‧‧‧ inside side
141‧‧‧ accommodating the wall
142‧‧‧blade accommodating slot
143‧‧‧Bump
20‧‧‧ rear housing
21‧‧‧Change the hole
22‧‧‧Place hole
23‧‧‧Corresponding face
24‧‧‧Card Arc Wall
24A‧‧‧Lower Order Department
241‧‧‧ first end
242‧‧‧ second end
243‧‧‧In and out slot
25‧‧‧ accommodating slots
30‧‧‧Pushing pieces
31‧‧‧Pushing Department
32‧‧‧Cards
40‧‧‧Slipper
41‧‧‧Card Department
411‧‧‧Clamping angle
42‧‧‧Pushing Department
43‧‧‧Hooks
50‧‧‧blade
51‧‧‧through holes
511‧‧‧ main hole
512‧‧‧ side hole
60‧‧‧Latch
61‧‧‧ head
62‧‧‧End
621‧‧‧ Ring groove
63‧‧‧Bumps
70‧‧‧ Protective jacket
71‧‧‧Mandrel hole
711‧‧‧Fixed hole
712‧‧‧ activities hole
72‧‧‧ peripheral side
721‧‧‧through slot
73‧‧‧Combined convex
731‧‧‧ combined with recessed holes
80‧‧‧Blade push unit
81‧‧‧Card base
811‧‧‧Resist
812‧‧‧elastic slot
82‧‧‧Flexible parts
A‧‧‧shell
A1‧‧‧ accommodating space
X‧‧‧Action direction
Y‧‧‧ Replacement direction
Z‧‧‧ pivoting direction

Figure 1 is an exploded view of the new roller cutter. Figure 2 is a cross-sectional view of the novel roller cutter. Figure 3 is a perspective view of the new wheel cutter. Figure 4 is a schematic view of the movable state of the roller cutter of the present invention. Figure 5 is a schematic view of the partial actuation of the new roller blade. Figure 6 is a schematic view of the partial actuation of the new roller blade. Figure 7 shows the state of use of the new roller knife.

10‧‧‧ front housing

101‧‧‧ pivot end

End of 102‧‧‧

11‧‧‧Slots

12‧‧‧Locking plate

121‧‧‧Slip hole

122‧‧‧through holes

13‧‧‧Transfer hole

20‧‧‧ rear housing

21‧‧‧Change the hole

22‧‧‧Place hole

23‧‧‧Corresponding face

24‧‧‧Card Arc Wall

24A‧‧‧Lower Order Department

241‧‧‧ first end

242‧‧‧ second end

243‧‧‧In and out slot

25‧‧‧ accommodating slots

30‧‧‧Pushing pieces

31‧‧‧Pushing Department

32‧‧‧Cards

40‧‧‧Slipper

41‧‧‧Card Department

411‧‧‧Clamping angle

42‧‧‧Pushing Department

43‧‧‧Hooks

50‧‧‧blade

51‧‧‧through holes

511‧‧‧ main hole

512‧‧‧ side hole

60‧‧‧Latch

61‧‧‧ head

62‧‧‧End

621‧‧‧ Ring groove

63‧‧‧Bumps

70‧‧‧ Protective jacket

71‧‧‧Mandrel hole

711‧‧‧Fixed hole

712‧‧‧ activities hole

72‧‧‧ peripheral side

721‧‧‧through slot

73‧‧‧Combined convex

80‧‧‧Blade push unit

81‧‧‧Card base

811‧‧‧Resist

812‧‧‧elastic slot

82‧‧‧Flexible parts

A‧‧‧shell

X‧‧‧Action direction

Y‧‧‧ Replacement direction

Z‧‧‧ pivoting direction

Claims (8)

A roller cutter includes: a housing having an accommodating space therein, the housing including a fixed front housing and a rear housing, the front housing having a pivotal end and an end Defining a direction in which the pivoting end extends to the end is an actuating direction, the front housing has a sliding hole and a consistent perforation at the pivoting end, the front housing further has a pushing hole, and the rear housing has a a pushing member; a pushing member having a pushing portion and a latching portion, wherein the pushing member is slidably disposed in the accommodating space along the actuating direction, and the stacking portion is located at the front a sliding hole of the housing, the part of the pushing portion is exposed to the front housing, the engaging convex portion is inserted through the sliding hole; a sliding member is located in the receiving space, and the sliding member is Sliding along the actuating direction is coupled to the pushing member, one end of the sliding member extends to form a fastening portion, the fastening portion has two clamping angles, and one side of the sliding member has a pushing At least one blade, one of the blades being pivotally coupled to the pivoting end of the front housing The blade has a through hole; a latch having a head segment and a tail segment connected in sequence, and defining a direction in which the head segment extends to the tail segment is a replacement direction, the tail segment having a ring groove, the tail segment a portion of the tail section having the annular groove extending into the accommodating space, and two clips of the fastening portion when the sliding member moves in the direction of the insertion pin An angle bracket is disposed in the ring groove. When the sliding member moves away from the pin, the two clamping angles of the locking portion are disengaged from the ring groove, and the pin can be free along the replacement direction. And a protective jacket disposed at a pivoting end of the front casing, the protective casing being pivotally coupled to the sliding member, the protective casing having a mandrel hole extending through the fixing a hole portion and a movable hole portion, the outer protective sleeve has an outer peripheral side surface, the outer peripheral side surface defines a through slot, the through slot is communicated with the mandrel hole, and the blade is located in the through slot for the pin to penetrate Inside, when the head segment is stuck in the fixing hole portion, the protection is outside The sleeve is limited by the latch and cannot be pivoted, and the protective jacket is free to pivot when the head section enters the movable hole. The roller knives of claim 1, wherein the protective jacket further has a coupling recess, and the locking projection passes through the sliding hole and is inserted into the coupling recess to allow the protection. The outer sleeve is pivotally coupled to the pusher. The roller blade of claim 2, wherein the pivoting end has a groove portion, and the protective casing further has a coupling protrusion, the coupling protrusion being located at the groove portion of the pivoting end, the combination A recess is located in the joint protrusion. The roller knives of claim 1, wherein the front housing extends at the pivoting end to form a locking plate, and the sliding hole is located at one end of the locking plate adjacent to the housing, The through hole is located in the locking plate, and the position of the tool changing hole corresponds to the position of the locking plate. The roller blade of the first aspect of the invention, wherein the front casing faces an inner side of the rear casing, and the front casing has a receiving ring wall on the inner side, the receiving A blade receiving groove is formed in the ring wall, a protrusion is formed in the blade receiving groove, the rear casing has a receiving hole, and the rear casing has a corresponding surface facing the front casing The inner side surface is symmetrically formed around the placement hole of the corresponding surface, and the two arcuate arc walls are facing each other and spaced apart by a distance, and the two arcs are adjacent to each other. Between the walls, there is a receiving groove, and the arcing wall has a first end and a second end, the arcing arc wall has a lower step at the second end, and further comprises a blade pushing unit The utility model comprises a card base and an elastic member, one end of the elastic member is abutting against the carding base, and the other end of the elastic member is provided to abut the blade to be replaced, and the blade to be replaced is pressed against the blade The blade of the front casing is received in the groove, and the through holes of the blades are disposed through the protrusion, so that the blade to be replaced is stably stored In the accommodating groove of the blade, the locating base is disposed in the accommodating groove, and the opposite sides of the locating base respectively have a resisting protrusion, and the elastic pre-force of the elastic member causes the two resisting protrusions They respectively correspond to the lower steps of the two arc walls. The roller knives of claim 1, wherein the sliding member has two hook portions on opposite sides of the pressing portion, and the two hook portions are hooked on the pushing member to make the sliding The moving member can slide in the direction of the movement. The roller blade of claim 1, wherein the through hole is formed by a main hole and two side holes, and the two side holes are located on opposite sides of the main hole, and the pin is at the tail The segment is adjacent to the formed two-bump which is symmetrically disposed at the outer periphery of the head segment, and the two bumps are respectively respectively disposed on the two side holes. The roller knives of claim 5, wherein the locating base has an elastic member groove, and the elastic member is located in the elastic member groove at one end of the locking base.