CN203738840U

CN203738840U - Paper cutter

Info

Publication number: CN203738840U
Application number: CN201420123778.7U
Authority: CN
Inventors: 徐振宇; 康耀鸿; 程志鹏
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2014-03-11
Filing date: 2014-03-11
Publication date: 2014-07-30
Anticipated expiration: 2024-03-11

Abstract

The utility model discloses a paper cutter. The paper cutter comprises a ruler swing arm, a lock screw, a ruler, a tip cover, a slide knob, a dial, a blade bearing assembly, a cutter base swing arm, a ruler substrate, an index plate, a tip spring, a sliding tip, a screw and the like. A regular polygon with a certain edge length and special angles of 30 degrees, 45 degrees and like can be accurately cut out by only using the paper cutter, operation is convenient, cutting efficiency is greatly improved, and the paper cutter can also be used as a common paper cutter.

Description

A kind of paper knife

Technical field

The utility model relates to a kind of hand tools, relates in particular to a kind of paper knife.

Background technology

Now in the time cutting a sheet of paper by hand operation, after often folding against cutting or by paper with ruler, shakeout, cut a sheet of paper with paper knife according to folding line, and common paper knife must be by accurately cutting regular polygon of other instrument, and paper knife itself does not possess the special angle of measuring function, can either cutting regular polygon if needed, again can cutting as the special angle such as 30 °, 45 °, needing multiple types of tools to give Integrated using could realize.

Utility model content

The utility model is to overcome the deficiencies in the prior art, and a kind of paper knife is provided.

The utility model is achieved through the following technical solutions:

A kind of paper knife comprises scale swing arm, lock-screw, scale, top lid, slider, dial, blade bearing assembly, tool rest swing arm, scale substrate, index dial, top spring, top, the screw that slides, and wherein blade bearing assembly comprises pedestal, blade, liner plate, blade bearing, cover plate, tool rest spring and screw, tool rest swing arm, scale swing arm, index dial is connected with screw after superposeing from bottom to top with dial, top spring is housed top with slip in the chute of scale swing arm, top lid is fixed on scale swing arm with screw, slider through the top chute covering with screw be fixed on slide top, scale and scale substrate are respectively from upper, below fastens scale swing arm and connects with screw, scale side is provided with lock-screw, in blade bearing assembly, in pedestal, be provided with blade bearing between and be provided with tool rest spring, blade is fixed on the side of blade bearing with screw, cover plate is fixed on pedestal top with screw, blade bearing top passes cover plate, pedestal and liner plate fasten the chute of tool rest swing arm and fix with screw from upper and lower respectively,

It is characterized in that installing rear tool rest swing arm, index dial and dial are relatively-stationary, and scale swing arm tool rest swing arm swing relatively, toply cover chute and indicated triangle arrow by dial one side, on index dial, there is triangle fluting, numeral and the angle on the dial that each slotting position is installed with top, indicated are corresponding one by one, after scale and scale substrate are installed, unclamp lock-screw, scale can slide along scale swing arm, promote slider and can make to slide the top chute along scale swing arm towards the direction slip away from dial, after unclamping, in the effect lower slider of top spring, top and slider resets, the top end wedge angle angle of sliding is consistent with triangle included angle on index dial, after installation, blade bearing assembly can slide along the chute of tool rest swing arm, the top of pressing blade bearing protrusion can promote blade to cutting position, unclamping rear blade resets under tool rest spring action with blade bearing.

The beneficial effects of the utility model are: use the utility model, accurately cutting regular polygon and special angle as long as instrument can facilitate, without measuring, calculate the operations such as picture, cutting efficiency and cutting quality are greatly improved, and when use, blade does not expose, take and be difficult for hindering hand, the utility model can also be served as common paper knife and be used.

Brief description of the drawings

Fig. 1 is the utility model front elevation

Fig. 2 is the utility model back view

Fig. 3 is the front enlarged drawing that the utility model removes dial and top lid

Fig. 4 is the utility model front explosive view

Fig. 5 is the utility model blade bearing component drawings

Fig. 6 is the utility model blade bearing assembly explosive view

Fig. 7 is the regular pentagon schematic diagram that uses the utility model cutting length of side 10cm

Fig. 8 is that the swing arm of the utility model scale becomes special angle schematic diagram with tool rest swing arm

In figure, scale swing arm 1, lock-screw 2, scale 3, top lid 4, slider 5, dial 6, blade bearing assembly 7, tool rest swing arm 8, scale substrate 9, index dial 10, top spring 11, top 12, the screw 13 of sliding, pedestal 14, blade 15, liner plate 16, blade bearing 17, cover plate 18, tool rest spring 19.

Detailed description of the invention

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

As shown in Fig. 1-Fig. 6, a kind of paper knife comprises scale swing arm 1, lock-screw 2, scale 3, top lid 4, slider 5, dial 6, blade bearing assembly 7, tool rest swing arm 8, scale substrate 9, index dial 10, top spring 11, it is top 12 to slide, screw 13, and wherein blade bearing assembly 7 comprises pedestal 14, blade 15, liner plate 16, blade bearing 17, cover plate 18, tool rest spring 19 and screw 13, tool rest swing arm 8, scale swing arm 1, index dial 10 is connected with screw 13 after superposeing from bottom to top with dial 6, top spring 10 is housed in the chute of scale swing arm 1 and slides top 12, top lid 4 is fixed on scale swing arm 1 with screw 13, slider 5 is fixed on and slides top 12 with screw 13 through the chute on top lid 4, scale 2 and scale substrate 9 are respectively from upper, below fastens scale swing arm 1 and connects with screw 13, scale 2 sides are provided with lock-screw 2, in blade bearing assembly 7, in pedestal 14, be provided with blade bearing 17 between and be provided with tool rest spring 19, blade 15 is fixed on the side of blade bearing 17 with screw 13, cover plate 18 is fixed on pedestal 14 tops with screw 13, blade bearing 17 tops pass cover plate 18, pedestal 14 fastens the chute of tool rest swing arm 8 fixing with screw 13 from upper and lower respectively with liner plate 16,

Above-described a kind of paper knife is characterized in that installing rear tool rest swing arm 8, index dial 10 is relatively-stationary with dial 6, and scale swing arm 1 can swing in relative tool rest swing arm 8, on top lid 4, there is chute and indicate triangle arrow by dial 6 one sides, on index dial 10, there is triangle fluting, numeral and the angle on the dial 6 that each slotting position is installed with top, indicated are corresponding one by one, after scale 3 is installed with scale substrate 9, unclamp lock-screw 2, scale can slide along scale swing arm 1, promote slider 5 and can make to slide top 12 chutes along scale swing arm 1 towards the direction slip away from dial 6, effect lower slider top 12 and slider 5 at top spring 11 after unclamping reset, the top 12 end wedge angle angles of sliding are consistent with triangle included angle on index dial 10, after installation, blade bearing assembly 7 can slide along the chute of tool rest swing arm 8, press the top that blade bearing 17 protrudes and can promote blade 15 to cutting position, unclamping rear blade 15 resets under 19 effects of tool rest spring with blade bearing 17.

The course of work of the present utility model is: as shown in Figure 7, the regular pentagon taking the cutting length of side as 10cm is example, unclamps lock-screw 2, and scale 3 is moved to away from dial one end along scale swing arm 1; With finger push slider 5 to top lid 4 upper hopper chutes the one end away from dial 6, rotary scale swing arm 1 makes the numeral " 5 " on dial 6 align with the triangle arrow on top lid 4, then unclamp and point the top 12 triangle fluting places that insert index dial 10 correspondences under the effect of top spring 11 that make to slide, at this time scale swing arm 1 is regular pentagon interior angle with the angle of tool rest swing arm 8; Mobile scale 3, to dial one side, is tightened lock-screw 2, ensures that the relative scale swing arm 1 of scale 3 is fixing; Paper is set level, compressed paper with tool rest swing arm 8, projection the moving blade holder assembly 7 of depressing blade bearing 17 cut out regular pentagon Article 1 limit; Measure the limit 10cm just having cut and make it alignment with scale 3, compress paper with tool rest swing arm 8, depress blade bearing 17 projections moving blade holder assembly 7, cut out next limit of regular pentagon; Repeat previous step and can complete the regular pentagon cutting that the length of side is 10cm, other regular polygon method of cutting out is identical; In like manner, as shown in Figure 8, the angle on dial 6 " 45 ° " is alignd with the triangle arrow on top lid 4, scale swing arm 1 is 45 ° with the angle of tool rest swing arm 8, can cut out the angle of corresponding size.

Claims

1. a paper knife, it is characterized in that comprising scale swing arm (1), lock-screw (2), scale (3), top lid (4), slider (5), dial (6), blade bearing assembly (7), tool rest swing arm (8), scale substrate (9), index dial (10), top spring (11), slide top (12), screw (13), wherein blade bearing assembly (7) comprises pedestal (14), blade (15), liner plate (16), blade bearing (17), cover plate (18), tool rest spring (19) and screw (13), tool rest swing arm (8), scale swing arm (1), index dial (10) is connected with screw (13) after superposeing from bottom to top with dial (6), top spring (10) and slide top (12) are housed in the chute of scale swing arm (1), top lid (4) is fixed on scale swing arm (1) with screw (13), slider (5) is fixed on screw (13) slide top (12) through the chute on top lid (4), scale (2) and scale substrate (9) are respectively from upper, below fastens scale swing arm (1) and connects with screw (13), scale (2) side is provided with lock-screw (2), in blade bearing assembly (7), in pedestal (14), be provided with blade bearing (17) between and be provided with tool rest spring (19), blade (15) is fixed on the side of blade bearing (17) with screw (13), cover plate (18) is fixed on pedestal (14) top with screw (13), blade bearing (17) top passes cover plate (18), pedestal (14) fastens the chute of tool rest swing arm (8) fixing with screw (13) from upper and lower respectively with liner plate (16).

2. a kind of paper knife as claimed in claim 1, it is characterized in that installing rear tool rest swing arm (8), index dial (10) is relatively-stationary with dial (6), and scale swing arm (1) tool rest swing arm (8) swing relatively, on top lid (4), there is chute and indicate triangle arrow by dial (6) one sides, on index dial (10), there is triangle fluting, numeral and the angle on the dial (6) that each slotting position is installed with top, indicated are corresponding one by one, after scale (3) is installed with scale substrate (9), unclamp lock-screw (2), scale can slide along scale swing arm (1), promote slider (5) can make to slide top (12) slide towards the direction away from dial (6) along the chute of scale swing arm (1), effect lower slider top (12) and slider (5) at top spring (11) after unclamping reset, top (12) end wedge angle angle of sliding is consistent with the upper triangle included angle of index dial (10), after installation, blade bearing assembly (7) can slide along the chute of tool rest swing arm (8), the top of pressing blade bearing (17) protrusion can promote blade (15) to cutting position, unclamping rear blade (15) resets under tool rest spring (19) effect with blade bearing (17).