TWI432300B - Shears with adjustable cutting angle - Google Patents

Description

Shear with adjustable cutting angle

The present invention is related to shearing, and more specifically, to a shearing tool that can adjust and control the angle of the cut section of the work.

Conventional shear angle adjustable shears, such as U.S. Patent No. 5,542,182, can be used to secure the angle of the workpiece to the cutting edge of the cutting tool in a one-piece manner to facilitate cutting the workpiece into a particular angular cut. However, the shear angle adjustment structure and operation mode of the conventional cutting tool are complicated, which not only makes the assembly difficult during production, but also is easy to be used in use, and it can only be used at several predetermined angles in order to avoid interference between the cutting edge and the stopper. It is really inconvenient.

The disadvantages of the prior art are comprehensively summarized, and generally include disadvantages such as complicated structure and operation mode, difficulty in assembly and production, and easy failure. In view of solving the above disadvantages, the present invention proposes a shearing tool capable of adjusting the cutting angle.

The invention relates to a shearing tool capable of adjusting a cutting angle, comprising: a first shank, the first shank is provided with a cutting edge at one end; and a second shank is pivoted with the first shank Combining movable splicing; a drilling rig is disposed on one end of the second shank relative to the cutting edge, and the shank cooperates with the cutting edge to generate a shearing action, wherein the drilling rig forms a second shank a disk body extending on one side, and a drilling hole is formed on the drilling platform, and a side of the drilling platform forms an arc-shaped sliding edge; and a movable blocking piece is provided at one end of the movable blocking piece a rotating shaft in the shaft hole, and the other end is provided with a groove hooked at the sliding edge, so that the movable flap can be rotated on the movable axis of the drilling platform, and the movable flap is opposite to the cutting edge. angle.

One of the objects of the present invention is that the movable flap and the cutting groove can be easily adjusted by the setting of the rotating shaft and the slot of the movable flap, so that the working member can abut against the movable blocking piece, thereby working. The shearing portion of the piece produces the desired angle and has the advantages of simple structure, easy assembly, and difficulty in malfunction.

According to a second aspect of the present invention, the present invention further includes a plurality of positioning holes recessed in the bottom side of the drilling platform at the near sliding edge, and the movable blocking piece is provided at a one end of the insertion groove with a positioning clip that can be oppositely clamped thereto. The positioning fixture has a positioning end that is movably embedded in the positioning hole, so that the movable blocking piece is fixed at a specific angle by the positioning holes, so as to facilitate quick adjustment of the cutting angle.

The third object of the present invention is that the cutting edge of the present invention is of a removable design, and a second handle that is movable and flipped is disposed at the second shank, and a recessed cutting edge is provided in the concave portion. Set the edge groove to facilitate the replacement or storage of the blade.

For the convenience of the description, the central idea expressed in the column of the above summary of the present invention is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.

As shown in the first and second figures, the present invention is a shearing tool capable of adjusting the cutting angle, comprising: a first shank 10, the first shank 10 having a locking piece 11 at one end The cutting edge 12 is movably positioned thereon, and the first end of the first shank 10 is provided with a first grip 13 for gripping, and the first grip 13 is provided with an inwardly tapered recess 14 a second shank 20, the first shank 10 and the second shank 20 are engaged by a plurality of teeth 101, 201, and at least one end is provided on the side of the teeth 101, 201 The connecting piece 21 is respectively connected to the first shank 10 and the second shank 20, and a spring 22 is disposed between the first shank 10 and the second shank 20, so that the first shank 10 and the first shank 10 The second handle 20 is movable and cooperative; wherein the second handle 20 is provided with a second grip 23 for gripping the other end of the cutting edge 12, and the second grip 23 is recessed inside. There is a shank 231 for the second shank 20, and the two ends of the second shank 23 are connected to the second shank 20 by a shaft 232 and a locking member 233, respectively. Each of the inner walls of both sides of the slot 231 is provided with a The opening 234 and a cutting edge 235 for receiving the cutting edge 12; the second handle 23 is also provided with an inwardly tapered recess 24; a drill floor 30 is movably locked to the second handle 20 with respect to one end of the cutting edge 12, the cymbal cooperates with the cutting edge 12 to produce a shearing action, wherein the drilling rig 30 forms a disk body extending to one side of the second shank 20, and the rig floor 30 is worn A shaft hole 31 is provided, and a side of the drill floor 30 forms an arc-shaped sliding edge 32, and the drill floor 30 is provided with a plurality of scales radially around the shaft hole 31. Further, the drill floor The bottom side of the 30 is recessed with a plurality of positioning holes 33 at the near sliding edge 32; a movable blocking piece 40 is made of a flexible material such as plastic, and is provided at one end thereof in the shaft hole 31. a rotating shaft 41 having a larger diameter locking end 411 at the end of the rotating shaft 41, and at least one elastic groove 412 is disposed on the rotating shaft 41, so that the rotating shaft 41 is elastically retracted to penetrate into the shaft hole 31. And the fixing of the locking end 411 prevents the rotating shaft 41 from being accidentally disengaged; and the other end of the movable blocking piece 40 is provided with a slot 42 hooked at the sliding edge 32, so that The movable flap 40 can be pivoted on the rig 30 to adjust the relative angle of the movable flap 40 and the cutting edge 12; and a positioning clip 50 is disposed on the movable bracket 40 relative to the slot At one end of the 42, the positioning clip 50 and the movable flap 40 are provided with an elastic member 51 such that the positioning clip 50 is elastically clamped at the bottom side of the drill floor 30, and the positioning clip 50 has a movable engagement to the positioning. The positioning end 52 in the hole 33.

After the above structure is clarified, the following is a detailed description of the operation and principle of the present invention. As shown in the third figure, when the user wants to change the cutting angle, the positioning clip 50 may be pressed first to make the positioning end 52. Separating from the positioning hole 33, the movable blocking piece 40 is in a movable rotating state, so as to force the one end of the fitting groove 42 to slide along the sliding edge 32 to a predetermined angle, and then release the positioning clip. 50, by the elastic force of the elastic member 51, the positioning end 52 is re-inserted in the positioning hole 33 (as shown in the fourth figure). The positioning holes 33 are disposed at a common angle for quick adjustment. Even if the positioning holes 33 are not properly positioned at a predetermined angle, the movable blocking piece 40 can be fixed to the movable blocking piece 40 by the clamping force of the positioning clips 50. At a predetermined angle.

As shown in the fifth and sixth figures, when the relative angle between the movable flap 40 and the cutting edge 12 is changed to a predetermined cutting angle, the working member can be abutted against the movable flap 40, and then pressed and pressed. The first grip 13 and the second grip 23 allow the cutting edge 12 to shear the workpiece at the drill floor 30 and form a predetermined angle. Wherein, the meshing transmission of the teeth 101, 201 can reduce the force required for the user to cut the workpiece, and the design of the recesses 14, 24 is more favorable for the grip of the palm of the hand.

As shown in the seventh figure, the present invention can perform the dismounting operation of the cutting edge 12 only after the locking piece 11 is removed, and the locking member 233 on the second grip 23 can be removed. The two grips 23 can be pivoted and turned by the shaft 232, and the edge grooves 235 in the shank 231 are exposed outside the second shank 20, so that the preliminary cutting edge 12 stored in the cutting edge 235 can be opened. 234 is taken out for replacement work; or when the cutting tool is not in use, the cutting edge 12 is removed and placed in the cutting edge groove 235 for storage, when the second grip 23 is returned to the original position and locked with the locking member 233 Thereafter, the blade groove 235 is blocked by the second shank 20 to surely prevent the stored cutting edge 12 from accidentally falling out.

While the invention has been described in terms of a preferred embodiment, the various modifications of the various embodiments can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. All modifications and variations that are made without departing from the spirit of the invention are the scope of the invention.

10. . . First handle

101. . . Tooth

11. . . Locking piece

12. . . Cutting edge

13. . . First handle

14. . . Depression

20. . . Second handle

201. . . Tooth

twenty one. . . Linked piece

twenty two. . . spring

twenty three. . . Second grip

231. . . Handle slot

232. . . Shaft connector

233. . . Lock firmware

234. . . Opening

235. . . Blade slot

twenty four. . . Depression

30. . . Drill floor

31. . . Shaft hole

32. . . Sliding edge

33. . . Positioning hole

40. . . Active cover

41. . . Rotating shaft

411. . . Card end

412. . . Elastic groove

42. . . Insert slot

50. . . Positioning clip

51. . . Elastic part

52. . . Positioning end

The first figure is a three-dimensional combination diagram of the present invention.

The second figure is a perspective exploded view of the present invention.

The third figure is a schematic diagram of the action of the positioning clip of the present invention (1).

The fourth figure is a schematic diagram of the action of the positioning clip of the present invention (2).

The fifth figure is a schematic diagram of the action of adjusting the shear angle of the present invention (1).

The sixth figure is a schematic diagram of the action of adjusting the shear angle of the present invention (2).

The seventh figure is a schematic diagram of the cutting blade replacement and storage operation of the present invention.

10. . . First handle

20. . . Second handle

30. . . Drill floor

32. . . Sliding edge

40. . . Active cover

50. . . Positioning clip

Claims (7)

A shearing tool capable of adjusting a cutting angle, comprising: a first shank, the first shank is provided with a cutting edge at one end; and a second shank is pivoted with the first shank and movable a drill rig disposed at one end of the second shank relative to the cutting edge to cooperate with the cutting edge to produce a shearing action, wherein the drilling rig is formed to extend toward a side of the second shank a disk body, and the drill floor is provided with a shaft hole, and a side of the drill floor forms an arc-shaped sliding edge, the bottom side of the drill floor is recessed with a plurality of positioning holes at the near sliding edge; and an activity a blocking piece, the movable blocking piece is provided with a rotating shaft disposed in the shaft hole at one end, and the other end is provided with a slot hooked at the sliding edge, wherein the movable blocking piece is at one end of the slot The positioning clamp has a positioning clip that is movably engaged with the positioning hole, so that the movable flap can be rotated on the movable axis of the drilling platform, and the movable flap is adjusted The relative angle of the cutting edge. The shearing tool of the adjustable cutting angle according to the first aspect of the invention, wherein the end of the rotating shaft is provided with a larger diameter locking end, and the rotating shaft is provided with at least one elastic groove. The shearing tool according to claim 1, wherein the cutting edge is positioned at an end of the first shank by a locking piece. The shearing tool of the adjustable cutting angle according to claim 1, wherein the first handle and the second handle are respectively provided with a first grip for holding the opposite end of the cutting edge. a handle and a second grip. The clipper with an adjustable shear angle according to claim 4, wherein the first grip and the second grip are each provided with a tapered recess. The clipper of the adjustable cutting angle according to the fourth aspect of the invention, wherein the second grip is recessed with a shank for the second shank, and the second grip is The end portions are respectively connected to the second shank by a shaft joint and a lock. The shearing tool of the adjustable cutting angle according to claim 6, wherein the inner wall of the shank is recessed with a cutting edge for the cutting edge.