TWI619587B - Cutting apparatus - Google Patents

Abstract

A cutting device includes an arm, a support member and a cutting member, the arm having a first long side, a second long side opposite the first long side, a first short side and a second short side opposite the first short side Forming a first predetermined angle between the first short side and/or the second short side and a reference horizontal plane, and the first long side and/or the second long side are substantially parallel to the reference horizontal plane, The support member abuts against the first long side or the second long side of the arm and forms a second predetermined angle with the reference horizontal plane, and the cutting member is disposed on the first short side of the arm.

Description

Cutting device

The present invention relates to a cutting device, and more particularly to a cutting device capable of cutting a circular arc.

For those who are engaged in art, arc-shaped cutting is extremely difficult, and it needs to be completed with special tools and tools. The arc cutting device structure commonly used in the market, for example, a cutting tool similar to a compass shape, in which a brush is used instead of a brush. Or a cutting tool made by a tool combined with a measuring ruler, the tool is fixed at one end of the scale, plus a shaft pin that is placed on the scale and can be moved to change the cutting radius.

However, although the above two types of cutting devices have been widely accepted, there is still room for improvement in practical use. The cutting tool for measuring the scale with the tool requires the user to operate with both hands, and the hand pin is held by one hand. The other hand holds the cutter for cutting. If the two hands are not properly applied, it is easy for the object to be cut to be pulled and deviated from the position. As for the compass-shaped cutting tool, although it can be operated with one hand, the user can only hold the rotating shaft at the top of the compass to perform the rotary cutting, and it is not easy to apply a force at the tool, so that it is impossible to cut a thick object.

The prior art described above is present in use and is even more susceptible to damage to the tool or object to be cut. Therefore, how to improve the design in the organization can not only achieve the effect of precise cutting with one-hand operation, but also is a subject that the industry needs to study at present.

In order to solve the problems of the prior art, the present invention provides a cutting device comprising: an arm, a support and a cutting member. The arm has a first long side, a second long side opposite the first long side, a first short side, and a second short side opposite the first short side, wherein the first short side and/or Forming a first predetermined angle between the second short side and the reference horizontal plane, and the first long side and/or the second long side are substantially parallel to the reference horizontal plane; the support member is first against the arm The long side or the second long side forms a second predetermined angle between the support and the reference horizontal plane; the cutting member is disposed on the first short side of the arm.

In an embodiment of the invention, the arm includes a first rail member disposed on a surface of the arm and substantially parallel to the first long side and/or the second The long side. In an embodiment of the invention, the support member includes a first connecting portion, and the first connecting portion includes a second rail member corresponding to the first rail member, the first connecting portion is used for the support When the piece abuts the arm, the second rail member is movably engaged with the first rail member for movement on the arm.

In an embodiment of the present invention, the first locking member is further included, and the first rail member includes a groove extending through the arm along the first long side, and the supporting member includes the first a through hole, the first through hole is disposed in the first connecting portion, and corresponds to the groove when the first connecting portion is engaged with the first rail member, and wherein the first fixing member passes through the first connecting portion The first through hole and the groove are used for fixing the support to the arm.

In one embodiment of the invention, the arm has a scale of length units.

In an embodiment of the invention, the arm includes a second connecting portion, and the second connecting portion is disposed on the first short side of the arm to connect the arm and the cutting member.

In an embodiment of the invention, the cutting member comprises a fixing seat, a second fixing member and a first screw hole, the fixing seat has a second through hole, the first screw hole is disposed on the cutting member, the second The fixing member penetrates the second through hole and the first screw hole to connect the fixing seat and the cutting member.

In an embodiment of the present invention, the third fastening member is further included, wherein the second connecting portion has a second screw hole, the fixing seat has a third through hole, and the third fixing member penetrates the The third through hole and the second screw hole fix the fixing base to the second connecting portion.

In one embodiment of the invention, the mount includes a fixed plate that is substantially parallel to the reference horizontal plane.

In one embodiment of the invention, the first predetermined angle is less than 90°.

In one embodiment of the invention, the second predetermined angle is substantially 90°.

Compared with the prior art, the cutting device provided by the present invention utilizes a special angle formed by the arm and the support member, is convenient for a single hand grip and is easy to apply force, and the cutting cutter combined with the fixing seat can accurately control the depth of the cutting, so that The cutting device of the invention is more ergonomic in structure or operation, and can improve the cutting efficiency while taking into account the service life of the tool.

1‧‧‧Boom

11‧‧‧First long side

12‧‧‧Second long side

13‧‧‧First short side

14‧‧‧Second short side

15‧‧‧First rail

16‧‧‧ trench

17‧‧‧Second connection

171‧‧‧Second screw hole

2‧‧‧Support

21‧‧‧First connection

211‧‧‧Second rail

22‧‧‧ first through hole

3‧‧‧Cut parts

31‧‧‧ fixed seat

311‧‧‧Second through hole

312‧‧‧ third through hole

313‧‧‧ fixed plate

32‧‧‧Second locks

33‧‧‧First screw hole

4‧‧‧First lock

5‧‧‧ Third solid lock

X1‧‧‧ first predetermined angle

X2‧‧‧second predetermined angle

1 is a perspective view of a cutting device of the present invention.

Figure 2 is a side elevational view of the mechanism of the cutting apparatus of the present invention.

Figure 3 is an exploded perspective view of the first viewing angle of the cutting device of the present invention.

Figure 4 is an exploded perspective view of the second viewing angle of the cutting device of the present invention.

The other embodiments of the present invention will be readily understood by those skilled in the art from this disclosure.

It is to be understood that the structure, the proportions, the size, and the like of the present invention are intended to be used in conjunction with the disclosure of the specification, and are not intended to limit the invention. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should fall within the present invention without affecting the effects and the achievable objectives of the present invention. The technical content disclosed can be covered. In the meantime, the terms "upper", "inside", "outside", "bottom" and "one" are used in this description for convenience of description and are not intended to limit the invention. The scope, the change or adjustment of its relative relationship, is also considered to be the scope of implementation of the present invention in the absence of substantial changes in the technical content.

1 and FIG. 2, FIG. 1 is a perspective view of the cutting device of the present invention, and FIG. 2 is a side view of the three-dimensional structure of the cutting device of the present invention. The cutting device of the present invention comprises an arm 1, a support 2 and a cutting member 3, the arm 1 having a first long side 11, a second long side 12 opposite the first long side 11, a first short side 13 and opposite The second short side 14 of the first short side 13 wherein the first long side 11 and the second long side 12 are parallel to the reference horizontal plane (not shown, such as but not limited to a table top or a countertop). As shown in FIG. 1, the shape of the arm 1 can be a rectangular parallelepiped or other shape, the support member 2 can abut against the first long side 11, and the cutting member 3 can be provided with the first short side 13 of the arm 1. In other embodiments, the support member 2 and the cutting member 3 can also abut against the second long side 12 and the second short side 14 respectively.

As shown in FIG. 2, a first predetermined angle X1 may be formed between the first short side 13 and/or the second short side 14 of the arm 1 and the reference horizontal plane; the support member 2 may abut against the first arm 1 A long side 11 or a second long side 12, the support member 2 can form a second predetermined angle X2 with the reference horizontal plane. When the support member 2 abuts against the arm 1, the first predetermined angle X1 is different from the second predetermined angle X2. Preferably, in the embodiment, the first predetermined angle X1 may be less than 90°, and the second predetermined angle X2 can be 90°. according to Therefore, when the user grasps the second long side 12 of the arm 1 with one hand, the angle between the arm 1 and the reference horizontal plane can be maintained, and when the user operates the arm 1 with one hand, the same can be simultaneously A force is applied to the support member 2 as an axis and a force is applied to the cutting member 3, and a circular arc cutting path is made with a radius between the support member 2 on the arm member 1 and the cutting member 3.

Preferably, in an embodiment of the invention, the arm 1 can include a first rail member 15 which can be disposed on the surface of the arm 1 and with the first long side 11 of the arm 1 And/or the second long side 12, the support 2 may include a first connecting portion 21, and the first connecting portion includes a second rail member 211, the first connecting portion 21 being coupled to the support member 2, when the support member 2 When the arm 1 is abutted, the first connecting portion 21 has an inclination angle, which can form a first predetermined angle X1 substantially between the reference horizontal plane, so that the first connecting portion 21 can be attached to the arm 1 The surface of the second rail member 211 is engaged with the first rail member 15, whereby the support member 2 can be moved on the arm rod 1 by using the first rail member 15 as a track, which is specifically illustrated by FIG. 2, the first rail member 15 is a convex portion and the second rail member 211 is a recess that can be correspondingly engaged with the convex portion. However, the shapes of the first rail member 15 and the second rail member 211 are not limited thereto. In other embodiments, the first rail member 15 is a groove and the second rail member 211 is a convex portion, or the first rail member 15 is a wheel and the second rail member 211 is a rail or the like. Components that can correspond to each other for the support member 2 to pass through the second rail member 211 and move over the arm rod 1 via the first rail member 15.

In another embodiment of the present invention, the first rail member 15 may include a groove 16, and the support member 2 may include a first through hole 22, and the first through hole 22 is disposed at the first connecting portion 21 when the first When the second rail member 211 of the connecting portion 21 is engaged with the first rail member 15, the first through hole 22 may correspond to the groove 16. Preferably, the cutting device of the present invention comprises a first locking member 4 through which the first locking member 4 and the groove 16 can be passed to fix the supporting member 2 to the arm 1. Therefore, the support member 2 can be the first rail member 15 Moving for the track to change the distance of the support 2 from the cutting member 3, thereby changing the radius of the circle at the time of cutting.

In still another embodiment of the present invention, the arm 1 may have a scale of length units, and more specifically, the arm 1 may simultaneously measure the distance between the support 2 and the cutting member 3 as a ruler. , that is, the radius of the circle when cutting.

Please refer to FIG. 3 and FIG. 4 together. FIG. 3 is an exploded perspective view of the first viewing angle of the cutting device of the present invention, and FIG. 4 is an exploded perspective view of the second viewing angle of the cutting device of the present invention. In still another embodiment of the present invention, the arm 1 may further include a second connecting portion 17, and the second connecting portion 17 may be disposed on the first short side 13 of the arm 1, between the arm 1 and the cutting member 3. For connecting the arm 1 and the cutting member 3. In other embodiments, the second connecting portion 17 can be disposed on the second short side 14 of the arm 1.

Preferably, in one embodiment of the present invention, the cutting member 3 can include a fixing base 31, a second locking member 32, and a first screw hole 33. The fixing base 31 can have a second through hole 311, and the first screw hole 33 is disposed on the cutting member 3, and the second locking member 32 can pass through the second through hole 311 and the first screw hole 33 to connect the fixing base 31 and the cutting member 3. The mount 31 can stabilize the angle between the cutting member 3 and the object to be cut. In an embodiment of the invention, the angle can be, for example but not limited to, 37.5° or 45°. More preferably, the fixing base 31 can include a fixing plate 313 which is substantially parallel to the reference horizontal plane and can be attached to the object to be cut, so that the user can pass the fixing plate when holding the cutting device of the present invention. 313 increases the contact area with the cutting surface to press the object to be cut, thereby increasing the smoothness and precision of the cutting. In addition, the fixing seat 31 can also maintain the same depth when the cutting member 3 cuts the object.

Preferably, in another embodiment of the present invention, the cutting device of the present invention may further include a third locking member 5, the second connecting portion 17 may have a second screw hole 171, and the fixing base 31 may further have The third through hole 312, the third fixing member 5 can pass through the third through hole 312 and the second screw hole 171 to fix The fixing base 31 is at the second connecting portion 17. In the present embodiment, the cutting member 3 combined with the fixing base 31 is assembled to the second connecting portion 17 of the arm 1, but the combination between the cutting member 3 and the arm 1 is not limited thereto. The illustrated embodiments are for illustrative purposes only.

In summary, the present invention provides a cutting device capable of cutting an arc shape, and the combined structure between the arm and the support member of the cutting device is different from the vertical combined structure in the prior art to facilitate the user. One-handed operation and easy angle of force to improve the design, thereby improving the efficiency and accuracy of the cutting object, and improving the cutting efficiency while taking into account the tool life.

The above embodiments are intended to illustrate the principles of the invention and its effects, and are not intended to limit the invention. Any of the above-described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the patent application.

Claims (11)

A cutting device comprising: an arm having a first long side, a second long side opposite the first long side, a first short side, and a second short side opposite the first short side; wherein the first short side Forming a first predetermined angle between the edge and the second short side and a reference horizontal plane, and the first long side and the second long side are substantially parallel to the reference horizontal plane; the support member is abutted against the arm a first long side or a second long side, the support member and the reference horizontal plane form a second predetermined angle, wherein the first predetermined angle is different from the second predetermined angle when the support member abuts the arm; And a cutting member disposed on the first short side of the arm. The cutting device of claim 1, wherein the arm includes a first rail member disposed on a surface of the arm and substantially parallel to the first long side and The second long side; and the support member includes a first connecting portion, and the first connecting portion includes a second rail member corresponding to the first rail member, the first connecting portion is for the supporting member to abut The arm is movably engaged with the first rail member via the second rail member for movement on the arm. The cutting device of claim 2, further comprising a first locking member, wherein the first rail member comprises a groove, the groove extending through the arm along the first long side, the support member The first through hole is disposed in the first connecting portion, and corresponds to the groove when the first connecting portion is engaged with the first rail member, and wherein the first locking member The first through hole and the groove are bored to fix the support member to the arm. The cutting device of claim 1, wherein the arm has a scale of length units. The cutting device of claim 1, wherein the arm includes a second connecting portion, the second connecting portion is disposed on the first short side of the arm for connecting the arm and the arm Cutting parts. The cutting device of claim 5, wherein the cutting member comprises: a fixing seat having a second through hole; a first screw hole disposed on the cutting member; and a second locking member The second through hole and the first screw hole are bored for connecting the fixing seat and the cutting member. The cutting device of claim 6, further comprising a third locking member, the second connecting portion having a second screw hole, the fixing seat having a third through hole, wherein the third locking member The third through hole and the second screw hole are disposed to fix the fixing base to the second connecting portion. The cutting device of claim 1, wherein the cutting member comprises: a fixing seat having a second through hole; a first screw hole disposed on the cutting member; and a second locking member The second through hole and the first screw hole are bored for connecting the fixing seat and the cutting member. The cutting device of claim 6 or 8, wherein the fixing base comprises a fixing plate substantially parallel to the reference horizontal plane. The cutting device of claim 1, wherein the first predetermined angle is less than 90°. The cutting device of claim 1, wherein the second predetermined angle is substantially 90°.