CN103878801B - Paper cutter and method of use thereof - Google Patents

Abstract

The invention discloses a paper cutter and a using method thereof. It includes scale swing arm, locking screw, scale, center cover, slide button, dial, blade seat assembly, knife seat swing arm, scale substrate, index plate, center spring, sliding center, screws and other components. The regular polygon with a certain side length and special angles such as 30° and 45° can be precisely cut out by using the present invention alone, which is easy to operate and greatly improves the cutting efficiency. The present invention can also be used as an ordinary paper cutter.

Description

Paper cutter and method of use thereof

technical field

The invention relates to a hand tool, in particular to a paper cutter.

Background technique

Now in the manual cutting operation, it is often necessary to use a ruler to cut against or fold the paper flat, and use a paper cutter to cut the paper according to the crease, and the ordinary paper cutter must use other tools to accurately cut the paper. Polygons, and the paper cutter itself does not have the function of measuring special angles. If you need to cut regular polygons and special angles such as 30° and 45°, you need to use multiple tools to achieve it.

Contents of the invention

The invention overcomes the deficiencies of the prior art and provides a paper cutter and a using method thereof.

A paper cutter includes a scale swing arm, a locking screw, a scale, a center cover, a slide button, a dial, a blade seat assembly, a knife seat swing arm, a scale substrate, an index plate, a center spring, a sliding center, and a screw, The blade seat assembly includes base, blade, liner, blade seat, cover plate, knife seat spring and screws; the knife seat swing arm, scale swing arm, index plate and dial are superimposed from bottom to top and then connected by screws. The chute of the scale swing arm is equipped with a top spring and a sliding top. The top cover is fixed on the scale swing arm with screws. The slide button passes through the chute on the top cover and is fixed on the sliding top with screws. , the bottom of the scale is buckled and connected with screws, and the side of the scale is equipped with locking screws. In the blade seat assembly, a blade seat is set in the base and a knife seat spring is set between the two. The blade is fixed on the On the side of the blade seat, the cover plate is fixed on the top of the base with screws, and the top of the blade seat passes through the cover plate, and the base and the lining plate respectively buckle the chute of the swing arm of the knife seat from the top and bottom and fix it with screws.

It is characterized in that the swing arm of the tool holder, the index plate and the dial are relatively fixed after installation, and the swing arm of the scale can swing relative to the swing arm of the tool holder. There is a slide groove on the top cover and a triangle arrow is marked on the side of the dial. There are triangular slots on the index plate, and each slot position corresponds to the number and angle marked on the dial installed above. After the scale and the scale substrate are installed, loosen the locking screw, and the scale can swing the arm along the scale. Sliding, push the slider to make the sliding top slide along the chute of the scale swing arm away from the dial. After releasing, the sliding top and the sliding button reset under the action of the top spring. The angles of the triangular grooves on the plate are consistent. After installation, the blade seat assembly can slide along the chute of the swing arm of the knife seat. Press the protruding upper part of the blade seat to push the blade to the cutting position. Reset under the action of seat spring.

A method for using a paper cutter as described above comprises the following steps:

1) Take cutting a regular pentagon with a side length of 10cm as an example, loosen the locking screw, and move the scale along the swing arm of the scale to the end away from the dial;

2) Use your fingers to push the slide button to the end of the chute on the center cover away from the dial, turn the scale swing arm to align the number "5" on the dial with the triangle arrow on the center cover, and then release your finger to make the sliding center on the top Under the action of the spring, it is inserted into the corresponding triangular slot of the index plate. At this time, the included angle between the scale swing arm and the tool holder swing arm is the inner angle of the regular pentagon;

3) Move the scale to one side of the dial, and tighten the locking screw to ensure that the scale is fixed relative to the swing arm of the scale;

4) Lay the paper flat, press the paper with the swing arm of the knife holder, press down the protruding part of the blade holder and move the blade holder assembly to cut out the first side of the regular pentagon;

5) Use a ruler to measure 10cm of the edge just cut and align it, press the paper with the swing arm of the knife holder, press down the protruding part of the blade holder and move the blade holder assembly, and cut out the next side of the regular pentagon;

6) Repeat step 5) to complete the cutting of a regular pentagon with a side length of 10cm, and the cutting methods of other regular polygons are the same;

7) Similarly, align the angle "45°" on the dial with the triangle arrow on the top cover, the angle between the scale swing arm and the knife holder swing arm is 45°, and you can cut out the corresponding angle.

The beneficial effects of the present invention are: using the present invention, regular polygons and special angles can be conveniently and accurately cut with only one tool, without measuring, calculating and drawing operations, which greatly improves the cutting efficiency and cutting quality, and does not use When the blade is not exposed, it is not easy to hurt the hand when it is taken, and the present invention can also be used as a common paper cutter.

Description of drawings

Fig. 1 is the front view of the present invention.

Fig. 2 is the rear view of the present invention.

Fig. 3 is an enlarged front view of the present invention with the dial and the top cover removed.

Fig. 4 is a front exploded view of the present invention.

Fig. 5 is a diagram of the blade seat assembly of the present invention.

Fig. 6 is an exploded view of the blade seat assembly of the present invention.

Fig. 7 is a schematic diagram of a regular pentagon with a side length of 10 cm cut using the present invention.

Fig. 8 is a schematic diagram showing a special included angle between the swing arm of the scale and the swing arm of the tool holder according to the present invention.

In the figure, scale swing arm 1, locking screw 2, scale 3, center cover 4, slide button 5, dial 6, blade seat assembly 7, knife seat swing arm 8, scale substrate 9, index plate 10, center Spring 11, sliding top 12, screw 13, base 14, blade 15, backing plate 16, blade seat 17, cover plate 18, knife seat spring 19.

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings:

As shown in Figures 1-6, a paper cutter includes a scale swing arm 1, a locking screw 2, a scale 3, a top cover 4, a slide button 5, a dial 6, a blade seat assembly 7, and a knife seat swing arm 8 , scale substrate 9, indexing plate 10, top spring 11, sliding top 12, screw 13, wherein the blade seat assembly 7 includes base 14, blade 15, liner 16, blade seat 17, cover plate 18, knife seat spring 19 and screw 13; knife holder swing arm 8, scale swing arm 1, indexing plate 10 and dial 6 are superimposed from bottom to top and then connected with screw 13, and the chute of scale swing arm 1 is equipped with top spring 11 and sliding The tip 12, the tip cover 4 is fixed to the scale swing arm 1 with screws 13, the sliding button 5 passes through the chute on the tip cover 4 and is fixed to the sliding tip 12 with screws 13, the scale 3 and the scale substrate 9 are buckled from the top and bottom respectively. Hold the scale swing arm 1 and connect it with screws 13. Locking screws 2 are installed on the side of the scale 3. In the blade seat assembly 7, a blade seat 17 is arranged in the base 14 and a knife seat spring 19 is arranged between the two. The blade 15 is fixed on the side of the blade seat 17 with screws 13, the cover plate 18 is fixed on the top of the base 14 with screws 13, the upper part of the blade seat 17 passes through the cover plate 18, and the base 14 and the lining plate 16 buckle the knife from the top and bottom respectively. The chute of seat swing arm 8 is fixed with screw 13;

A kind of paper cutting knife described above is characterized in that after installation, the knife seat swing arm 8, the index plate 10 and the dial plate 6 are relatively fixed, and the scale swing arm 1 can swing relative to the knife seat swing arm 8, and the top cover 4 There is a chute and a triangular arrow is marked on the side of the dial 6. There is a triangular slot on the dial 10. Each slot position corresponds to the number and angle marked on the dial 6 installed above. The scale 3 After installing with the scale substrate 9, loosen the locking screw 2, the scale can slide along the scale swing arm 1, push the slide button 5 to make the sliding top 12 slide along the chute of the scale swing arm 1 away from the dial 6, After unclamping, under the action of the top spring 11, the sliding top 12 and the slide button 5 are reset. The sharp angle at the end of the sliding top 12 is consistent with the angle of the triangular groove on the index plate 10. After installation, the blade holder assembly 7 can move along the knife The chute of seat swing arm 8 slides, presses the protruding top of blade seat 17 and can promote blade 15 to the cutting position, and after unclamping, blade 15 resets with blade seat 17 under the knife seat spring 19 effect.

A method for using a paper cutter as described above comprises the following steps:

1) As shown in Figure 7, take cutting a regular pentagon with a side length of 10cm as an example, loosen the locking screw 2, and move the scale 3 along the scale swing arm 1 to the end away from the dial;

2) Push the sliding button 5 with your fingers to the end of the chute on the top cover 4 away from the dial 6, turn the scale swing arm 1 to align the number "5" on the dial 6 with the triangle arrow on the top cover 4, and then release it Insert the sliding top 12 into the corresponding triangular slot of the index plate 10 under the action of the top spring 11 with your fingers. At this time, the included angle between the scale swing arm 1 and the tool holder swing arm 8 is the interior angle of a regular pentagon;

3) Move the scale 3 to one side of the dial, and tighten the locking screw 2 to ensure that the scale 3 is fixed relative to the scale swing arm 1;

4) Lay the paper flat, press the paper with the knife holder swing arm 8, press down the protruding part of the blade holder 17 and move the blade holder assembly 7 to cut out the first side of the regular pentagon;

5) Use the ruler 3 to measure 10 cm of the edge just cut and align them, press the paper with the knife holder swing arm 8, press down the protruding part of the blade holder 17 and move the blade holder assembly 7, and cut out a regular pentagon the next edge;

6) Repeat step 5) to complete the cutting of a regular pentagon with a side length of 10cm, and the cutting methods of other regular polygons are the same;

7) Similarly, as shown in Figure 8, align the angle "45°" on the dial 6 with the triangle arrow on the top cover 4, and the angle between the scale swing arm 1 and the tool holder swing arm 8 is 45°, Corners of the corresponding size can be cut out.

Claims (2)

1. A paper cutter, characterized in that it includes a scale swing arm (1), a locking screw (2), a scale (3), a top cover (4), a slide button (5), a dial (6), a blade Seat assembly (7), knife seat swing arm (8), scale substrate (9), index plate (10), top spring (11), sliding top (12), screw (13), among which the blade seat assembly ( 7) Including base (14), blade (15), liner (16), blade seat (17), cover plate (18), knife seat spring (19) and screw (13); knife seat swing arm (8 ), the scale swing arm (1), the index plate (10) and the scale plate (6) are stacked from bottom to top and then connected with screws (13), and the top spring (11 ) and the sliding top (12), the top cover (4) is fixed on the scale swing arm (1) with screws (13), the sliding button (5) passes through the chute on the top cover (4) and is fixed on the The sliding top (12), the scale (3) and the scale substrate (9) hold the scale swing arm (1) from the top and bottom respectively and connect them with screws (13). The side of the scale (3) is equipped with locking screws (2 ), in the blade seat assembly (7), a blade seat (17) is provided in the base (14) and a knife seat spring (19) is provided between the two, and the blade (15) is fixed on the On the side of the blade seat (17), the cover plate (18) is fixed on the top of the base (14) with screws (13), and the top of the blade seat (17) passes through the cover plate (18), and the base (14) and the lining plate ( 16) Buckle the chute of the knife seat swing arm (8) from the top and bottom and fix it with screws (13); fixed, and the scale swing arm (1) can swing relative to the tool seat swing arm (8), there is a chute on the top cover (4) and a triangle arrow is marked on the side of the dial (6), and the index plate (10) There are triangular slots on it, and each slot position corresponds to the number and angle marked on the dial (6) installed above. After the scale (3) and the scale substrate (9) are installed, loosen the locking screw ( 2), the scale can slide along the scale swing arm (1), push the slide button (5) to make the sliding center (12) slide along the chute of the scale swing arm (1) away from the dial (6), loosen Finally, under the action of the top spring (11), the sliding top (12) and the sliding button (5) are reset, and the sharp angle at the end of the sliding top (12) is consistent with the angle of the triangular groove on the indexing plate (10). After installation, The blade seat assembly (7) can slide along the chute of the knife seat swing arm (8), press the protruding upper part of the blade seat (17) to push the blade (15) to the cutting position, and release the blade (15) with The blade seat (17) resets under the effect of the knife seat spring (19). 2. A method for using a paper cutter as claimed in claim 1, characterized in that it comprises the following steps: 1) Taking cutting a regular pentagon with a side length of 10cm as an example, loosen the locking screw (2), and move the scale (3) along the scale swing arm (1) to the end away from the dial; 2) Push the sliding button (5) with your fingers to the end of the chute on the top cover (4) away from the dial (6), turn the scale swing arm (1) so that the number "5" on the dial (6) is aligned with the top cover Align the triangle arrows on (4), and then release your finger to insert the sliding top (12) into the corresponding triangle slot of the indexing plate (10) under the action of the top spring (11). At this time, the scale swing arm (1) The included angle with the knife seat swing arm (8) is the interior angle of a regular pentagon; 3) Move the scale (3) to one side of the dial, and tighten the locking screw (2) to ensure that the scale (3) is fixed relative to the scale swing arm (1); 4) Lay the paper flat, press the paper with the knife holder swing arm (8), press down the protruding part of the blade holder (17) and move the blade holder assembly (7) to cut out the first side of the regular pentagon; 5) Use the ruler (3) to measure 10 cm from the edge just cut and align them, press the paper with the knife holder swing arm (8), press down the protruding part of the blade holder (17) and move the blade holder assembly (7) , cut out the next side of the regular pentagon; 6) Repeat step 5) to complete the cutting of a regular pentagon with a side length of 10cm, and the cutting methods of other regular polygons are the same; 7) Similarly, align the angle "45°" on the dial (6) with the triangle arrow on the top cover (4), the angle between the scale swing arm (1) and the tool holder swing arm (8) is 45° °, the angle of the corresponding size can be cut out.