Curve cutter

Abstract

To provide a curve cutter by which a user can cut a sheet in a curve shape, and which can be easily handled safely.SOLUTION: A cutter comprises: a button part; a tripod part; a disk part; a cutter blade; and a cover. The button part is formed of a safety stopper, a cutter blade reception part, and prevents unexpected grounding of the cutter blade, and assists in rotation of the cutter blade. By pushing the button part by the finger of a user, the cutter blade is grounded, and the disk part rotates, and the cover is lifted up using force of pushing the button part. A tire of the tripod part and the cutter blade rotate so as to face each other in any direction according to orientation change to any direction, therefore a user can cut the sheet in a curve shape using the cutter by only moving the fingers of the user while pushing the button part. In addition, by fitting a left assistance rod support, a right assistance rod support, and an assistance rod and attaching them to the cutter, cutting using a guide can be performed.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a curved cutter suitable for cutting thin, easily cuttable sheet-like materials such as paper and vinyl (hereinafter simply referred to as paper) into curved shapes. [Background technology]

[0002] Conventionally, cutter blades can only cut in the direction that the blade faces the paper. Therefore, when cutting curves with a cutter, it is common to use a cutter with a small blade like a pen cutter, or to cut paper in a curved shape by changing the direction of the cutter blade along with the jig, like a circle cutter.

[0003] For example, in Patent Document 1, a pen-shaped cutter is placed in a jig with a bearing, and the pen with the cutter blade rotates in accordance with the rotation. Due to its characteristics, it is bulky because it requires a jig separate from the cutter, and it has problems such as being difficult to use for children with small hands or people with disabilities because it needs to be held while moving. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Jpn. Appl. KOKAI Publication No. 6-68668 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a curve cutter that can freely cut paper into curved shapes and is safe and easy to handle. [Means for solving the problem]

[0006] In order to achieve the above object, the curved cutter of the present invention has a cutter blade that rotates together with the jig, and is supported by tripod-like legs, so that the jig can be slid while pressing the upper part with a finger.

[0007] The curved cutter is designed for cutting curved lines and includes a button with a blade that rotates in any direction, a disk connected to both the cover and the button, the cover with a hole that moves upward as the disk rotates when the button is pressed with a finger, a rod-shaped safety stopper that fits into the hole in the cover as it rotates, a tripod that supports the disk, and a lid that engages with the cover like a screw.

[0008] Furthermore, the curved cutter is equipped with a spring, and the tripod, the cover, the spring, the button connected to the cutter blade, and the disk are arranged such that the spring is placed between the tripod and the button connected to the cutter blade, and the center of the disk is placed on a plate-shaped part connected to the tripod, and the disk is connected to the button connected to the cutter blade and the cover, so that when the spring contracts, the cutter blade comes into contact with the ground and the disk rotates, pushing up the cover, and when the finger is released, the spring expands, the cutter blade no longer comes into contact with the ground, and the cover rises until it interferes with the button connected to the cutter blade and stops.

[0009] The disk has two protruding parts surrounded by oblong oval holes on a rod with a right-angle hook on the other side, and the right-angle hook part is connected to another part, so that the rotational motion of the disk can be converted into vertical motion.

[0010] Furthermore, the curved cutter of the present invention further comprises, on the button, an auxiliary rod which is a long, slender rectangular parallelepiped with a cylinder at the tip, a semicircular left auxiliary rod support with concaves and convexes intended for engagement, and a semicircular right auxiliary rod support with concaves and convexes intended for engagement and a hole which can be engaged with the auxiliary rod, and by engaging the left auxiliary rod support and the right auxiliary rod support while hooking them onto the safety stopper, and by engaging the right auxiliary rod support with the auxiliary rod, the curved cutter has an auxiliary tool with a structure in which the auxiliary rod can assist in curved cutting when the button is pressed.

[0011] In the present invention, from the viewpoint of cost, no bearing is placed in the cylindrical fitting portion at the base of the cutter blade, but by placing a bearing, the cutting can be performed more smoothly. [Effects of the Invention]

[0012] The present invention has the above-described structure, and therefore can achieve safe curved cutting. [Brief explanation of the drawings]

[0013] [Figure 1] Overall perspective view when stored [Figure 2] Perspective view of the storage lid [Figure 3] Front view of the cutter [Figure 4] Perspective view of the cutter [Figure 5] Front cross section of the cutter [Figure 6] Exploded perspective view of the cutter unit from above [Figure 7] Exploded perspective view of the cutter section from below [Figure 8] Perspective view when using the auxiliary rod [Figure 9] Exploded perspective view of the auxiliary rod DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to the accompanying drawings. In the following drawings, the same components are designated by the same reference numerals, and redundant explanations may be omitted.

[0015] Fig. 1 shows an overall perspective view of the cutter blade when it is retracted. The cutter of the present invention is retracted by rotating it like a screw using the grooves in the lid 19 and cover 3 shown in Fig. 2.

[0016] Fig. 3 is a front view of the cutter, and Fig. 4 is a perspective view. Figs. 6 and 7 are exploded perspective views showing the detailed structure of the cutter. As shown in the figures, the cutter of the present invention is broadly divided into a button portion 1, a cover 3, disk portions 11 and 12, a tripod portion 9, and a cutter blade 17.

[0017] Button part 1 has rod-shaped safety stoppers 2 extending to the left and right from button part 1 to stop the blade from accidentally flying out, a cylindrical cover stopper 6 to prevent button part 1 from flying out of cover 3, and cutter blade receiver 7 with a cylindrical hole 18 for fitting with cutter blade 17. In addition, the top of button part 1 has a non-slip surface to prevent slippage when placing a finger on it and moving it.

[0018] The cover 3 has a screw groove for storing the cutter using the lid 19, a circular hole for passing the button part 1 through, two safety grooves 4 for catching the safety stopper 2 of the button part 1, and a circular groove on the back side for catching the cover stopper 6. The cover 3 is also shaped like a tripod so that the cutter blade 17 can be directly checked from the side.

[0019] The disk section consists of two parts, a left disk section 11 and a right disk section 12, which are symmetrical left and right. The left disk section 11 consists of four parts: a left long hook 11a connected to the cover 3, a left short hook 11c connected to the cover stopper 6, a left fastener 11b that fastens the disk passed through the left disk support 16, and a left disk 11d with two protrusions for passing through oval holes at the tips of the left long hook 11a and left short hook 11c. The right disk section 12, like the left disk section 11, consists of four parts: a right long hook 12a, a right short hook 12c, a right fastener 12b, and a right disk 12d.

[0020] In addition to the cylindrical hole for passing through the button part 1, the left disk support 16, and the right disk support 15, the tripod part 9 also has small cylindrical holes, a front leg hole 9a, a left leg hole 9b, and a right leg hole 9c, for attaching three tires, one on each leg: a right tire 10, a left tire 13, and a front tire 14. The right tire 10 is also made up of three parts, with the right tire support 10a having a cylindrical protrusion that fits into the right leg hole 9c, the right tire axle 10b, and the right tire wheel 10c.

[0021] Figure 5 shows a cross-sectional view of the cutter as seen from the front. The cutter blade holder 7 and safety stopper 2 are connected by a cylindrical fitting 5 so that the safety stopper can be rotated, and the orientation of the safety groove 4 and safety stopper 2 can be aligned.

[0022] An example of use will now be described. When button 1 is pressed, left short hook 11c and right short hook 12c connected to cover stopper 6 rotate left disk 11d and right disk 12d supported by left disk support 16 and right disk support 15, and left long hook 11a and right long hook 12a push up cover 3. This exposes tires 10, 13, and 14 from the cover. At the same time, spring 8 between button 1 and tripod 9 contracts, causing cutter blade 17 to come into contact with the paper.

[0023] By pressing the button 1 with a finger and moving the cutter blade 17 in any direction while it is in contact with the ground, the tires 10, 13, and 14 rotate to face the desired direction. The tip of the cutter blade 17 is also slanted, so it rotates to face the desired direction. This rotation occurs continuously every time the desired direction changes, allowing paper to be cut in a curved line.

[0024] As shown in the perspective view of the auxiliary tool in use in Figure 8, the curved cutter of the present invention can be fitted with auxiliary tool 23, and as shown in the exploded perspective view of the auxiliary tool in Figure 9, in auxiliary tool 23, left auxiliary rod support 20 and right auxiliary rod support 21 can be fitted together to hook onto safety stopper 2, and auxiliary rod 22 can be fitted with right auxiliary rod support 21. This makes it possible to make curved cuts using a guide by moving the cutter so that it follows the guide at the cylindrical tip of auxiliary rod 22. The length and thickness of auxiliary rod 22 can also be changed. [Explanation of symbols]

[0025] 1 Button section 2 Safety Stoppers 3 Cover 4 safety grooves 5 Cylindrical fitting 6Cover stopper 7 Cutter blade holder 8 springs 9 tripod section 9a front leg hole 9b left leg hole 9c right leg hole 10 Right tire 10a Right tire support 10b right tire axle 10c right tire wheel 11 Left disc 11a Left long hook bar 11b left fastener 11c left short hook bar 11d left disc 12 Right disc 12a right long hook bar 12b right fastener 12c right short hook bar 12d right disc 13 Left tire 14 front tires 15 Right disc support 16 Left disc support 17 cutter blades 18 Cutter blade receiving cylindrical hole 19 lids 20 left auxiliary rod support 21 Right auxiliary rod support 22 auxiliary sticks 23 auxiliary tools

Claims

1. This curved cutter is characterized by the fact that the cutter blade, which rotates together with the jig, is supported by tripod-like legs, allowing the jig to be slid while pressing the upper part with a finger.

2. The curve cutter, designed for cutting curved lines, is characterized in that it comprises a button with a blade that rotates in any direction, a disk connected to both the cover and the button, the cover with a hole that moves upward as the disk rotates when the button is pressed with a finger, a rod-shaped safety stopper that rotates and fits into the hole in the cover, a tripod that supports the disk, and a lid that engages with the cover like a screw.

3. The curved cutter further comprises a spring, and the tripod, the cover, the spring, the button connected to the cutter blade, and the disk are arranged such that the spring is located between the tripod and the button connected to the cutter blade, and the center of the disk is located on a plate-shaped part connected to the tripod, and the disk is connected to the button connected to the cutter blade and the cover, so that when the spring contracts, the cutter blade comes into contact with the ground and the disk rotates to push up the cover, and when the finger is released, the spring expands and the cutter blade no longer comes into contact with the ground, and the cover rises until it interferes with the button connected to the cutter blade and stops.

4. The curved cutter according to claim 1, wherein the disk has two protruding portions surrounded by a horizontally long oval hole in a rod having a right-angle hook on the other side, and the right-angle hook portion is connected to another part, thereby converting the rotational movement of the disk into vertical movement.

5. 2. The curve cutter according to claim 1, further comprising an auxiliary rod that is a long, slender rectangular parallelepiped with a cylinder at the tip, a semicircular left auxiliary rod support with concaves and convexes for engagement, and a semicircular right auxiliary rod support with concaves and convexes for engagement and a hole that can engage with the auxiliary rod, wherein the left auxiliary rod support and the right auxiliary rod support are engaged while hooked onto the safety stopper, and the right auxiliary rod support is engaged with the auxiliary rod, thereby having an auxiliary device having a structure that allows the auxiliary rod to assist in curved cutting when the button is pressed.

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