CN2631776Y

CN2631776Y - Compasses

Info

Publication number: CN2631776Y
Application number: CN 03266507
Authority: CN
Inventors: 穆柳明; 尹革
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-01
Filing date: 2003-07-01
Publication date: 2004-08-11
Anticipated expiration: 2013-07-01

Abstract

According to the International Patent Classification (IPC), new compasses relates to a operation and transportation part, printing sub-part, a writing and drawing things small sort, compasses team technology field. The prose is to solve the problems of easy arranging radius and reading length of the line by compasses for drawing. The new compasses mainly comprise a right gear, a pencil core, a nib and a left gear, and are characterized in that tooth of a left gear is meshed with tooth of a right gear, a upper end of a inner section is fixed on a lower part of a right leg by a nut and a bolt, a inside wall of a external bracket is covered on a outside wall of a inner bracket, the screw thread hole place of the inner bracket keeps the level with the external bracket hole and connected on the external screw thread of lower of the handle, the inside wall of the left leg is welded on the end near to the zero distance of a radius ruler, the other end of the radius ruler is through the hole connected with the middle of the right leg, the new compasses have the advantages of wide purposes, easy making, low costs and easy popularization.

Description

Novel bow compass

(1) technical field:

The utility model relates to novel bow compass, divides by International Patent Classification (IPC) (IPC) to belong to operation, Department of Transportation, and printing branch is write or drawing appliance; The big class of office appliance is write or drawing article; The assistant product group of writing or draw, big group of circular curve plotter or analogous instrument, compasses group

Technical field.

(2) background technology:

At present, existing and once had about big group of circular curve plotter or analogous instrument, the technology of compasses group was all done very fruitful effort to the demand of novel bow compass, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China in 1996 by Yancheng most, Granted publication number is CN2218658Y, China Patent No. (ZL) is: No. 95239741.2 utility model patent title is the utility model patent of " accurately measuring compasses ", the technical scheme that is adopted.Big group of circular curve plotter or analogous instrument, the technical elements of compasses group are routine of great value inventions, and it has solved the accurately technical problem of tolerance of compasses effectively.But still have some deficits, it also is difficult to solve drawing bowlder, and radius is set easily, with the technical problem of compasses read line segment length.

(3) summary of the invention:

The purpose of this utility model is to provide a kind of novel bow compass.To solve, radius is set easily, with the technical problem of compasses read line segment length drawing bowlder.

The novel bow compass that the new technical scheme that above-mentioned technical problem to be solved in the utility model adopted is achieved in that this utility model mainly by: handle, outrigger, internal frame, right gear, right leg, radius chi, nut, bolt, internal segment, overcoat, pencil-lead, pen nib, left leg, left gear constitute.Its major part right gear, pencil-lead, left gear are selected for use by market.Its right leg is that middle 1/2 place has the cuboid round bar of rectangular through holes and an end that interior hole shape is arranged, and is material with the steel, through the processing and manufacturings such as turning of iron and steel.Its radius chi is the scale shape that a circular arc is carved by Similar Principle of Triangle, is material with the steel plate, carves processing and manufacturing through cutting, pressure.Two up and down of internal segment is that cylindrical centre is four prismatic shapes, is material with steel, through cutting and processing and forming manufacturing.

In shape, structure and combination thereof, the total essential features of novel bow compass of the present utility model and immediate prior art is: the interstitial hole position of right gear is installed in the upper end slot position of right leg by screw rod, screw rod end positions welded and installed 2/3 branch place in the middle of the inwall of internal frame that the leg upper end of right leg passes, in conjunction with the compound rod bascule of the thin rod-shape of growing up, function has been to regulate the effect of the angle between two legs.The interstitial hole position of left gear is installed in the upper end slot position of left leg by screw rod, the screw rod both ends of the surface position welded and installed that the upper end of left side leg passes position, 1/3 branch place in the middle of the inwall of internal frame, be combined into the combined moving structure of elongate rod shape, function has been to regulate the effect of the angle between two legs.In shape, structure and combination thereof, the novel bow compass of the present utility model technical characterictic different with immediate prior art is: the tooth position of the tooth position engagement right gear of left gear, the upper end position of internal segment is fixed on the lower end position of right leg by nuts and bolt, be combined into two round-shaped bascules, function has been when regulating a leg, the effect that another leg is also moving thereupon.The inner wall position of outrigger is enclosed within position on the outer wall of internal frame, and aliging with the outrigger hole in the screw top hole site of internal frame, by being threaded in the external screw thread position, lower end of handle, is combined into the combining structure of convex shape shape, and function has been the effect that hand-held handle is drawn.The madial wall position of left side leg be welded to connect the radius chi apart from a nearly end position at zero point, position in the square hole of the centre that is connected right leg is pierced in the other end position of radius chi, is combined into triangular shaped bascule, function has been the effect that radius size is set.The solution that has so just realized novel bow compass of the present utility model is provided with radius easily drawing bowlder, uses the purpose of the technical problem of compasses read line segment length.

The beneficial effect of the novel bow compass of utility model is: the utility model is being drawn bowlder for solving, radius is set easily, with the technical scheme that technical problem adopted of compasses read line segment length and existing and once had about big group of circular curve plotter or analogous instrument, the technology of compasses group has been compared three advantages and improvement:

First, owing to designed the tooth position of the tooth position engagement right gear of left gear in the technical scheme of novel bow compass of the present utility model, the upper end position of internal segment is fixed on the lower end position of right leg by nuts and bolt, be combined into two round-shaped bascules, so can easier solution when regulating a leg, the technical problem that another leg is also moving thereupon.

Second, owing to designed position on the outer wall that the inner wall position of outrigger is enclosed within internal frame in the technical scheme of novel bow compass of the present utility model, align with the outrigger hole in the screw top hole site of internal frame, by being threaded in the external screw thread position, lower end of handle, be combined into the combining structure of convex shape shape, so can easier solution hand the technical problem that handle is drawn.

The 3rd, since designed in the technical scheme of novel bow compass of the present utility model the madial wall position of left leg be welded to connect the radius chi apart from a nearly end position at zero point, position in the square hole of the centre that is connected right leg is pierced in the other end position of radius chi, be combined into triangular shaped bascule, so the technical problem of radius size can easier solution be set.

(4) description of drawings:

Accompanying drawing provides the structural representation of novel bow compass of the present utility model:

Fig. 1: the internal structure schematic diagram that is novel bow compass of the present utility model:

Fig. 2: the surface structure schematic diagram that is novel bow compass of the present utility model:

The label declaration of parts in the schematic diagram:

1 handle, 2 outriggers, 3 internal frames, 4 right gears, 5 right legs

6 radius chis, 7 nuts, 8 bolts, 9 internal segments, 10 overcoats

11 pencil-leads, 12 pen nibs, 13 left leg 14 left gears

(5) specific embodiment:

Below in conjunction with accompanying drawing, novel bow compass of the present utility model for realize solving drawing bowlder, is provided with radius easily, the optimal way of the technical scheme of taking with the technical problem of compasses read line segment length is described further:

Its static structure: please join accompanying drawing: as shown in the figure, novel bow compass of the present utility model mainly is made of handle 1, outrigger 2, internal frame 3, right gear 4, right leg 5, radius chi 6, nut 7, bolt 8, internal segment 9, overcoat 10, pencil-lead 11, pen nib 12, left leg 13, left gear 14.Its major part right gear 4, pencil-lead 11, left gear 14 are selected for use by market.Its right leg 5 is that middle 1/2 place has the cuboid round bar of rectangular through holes and an end that interior hole shape is arranged, and is material with the steel, through the processing and manufacturings such as turning of iron and steel.Its radius chi 6 is scale shapes that a circular arc is carved by Similar Principle of Triangle, is material with the steel plate, carves processing and manufacturing through cutting, pressure.Two up and down of internal segment 9 is that cylindrical centre is four prismatic shapes, is material with steel, through cutting and processing and forming manufacturing.

In shape, structure and combination thereof, the total essential features of novel bow compass of the present utility model and immediate prior art is: the interstitial hole position of right gear 4 is installed in the upper end slot position of right leg 5 by screw rod, screw rod end positions welded and installed 2/3 branch place in the middle of the inwall of internal frame 3 that the leg upper end of right leg 5 passes, in conjunction with the compound rod bascule of the thin rod-shape of growing up, function has been to regulate the effect of the angle between two legs.The interstitial hole position of left gear 14 is installed in the upper end slot position of left leg 13 by screw rod, the screw rod both ends of the surface position welded and installed that the upper end of left side leg 5 passes position, 1/3 branch place in the middle of the inwall of internal frame 3, be combined into the combined moving structure of elongate rod shape, function has been to regulate the effect of the angle between two legs.In shape, structure and combination thereof, the novel bow compass of the present utility model technical characterictic different with immediate prior art is: the tooth position of the tooth position engagement right gear 4 of left gear 14, the upper end position of internal segment 9 is fixed on the lower end position of right leg 5 by nuts and bolt, be combined into two round-shaped bascules, function has been when regulating a leg, the effect that another leg is also moving thereupon.The inner wall position of outrigger 2 is enclosed within position on the outer wall of internal frame 3, align with the outrigger hole in the screw top hole site of internal frame 3, by being threaded in the external screw thread position, lower end of handle 1, be combined into the combining structure of convex shape shape, function has been the effect that hand-held handle is drawn.A left side leg 13 the madial wall position be welded to connect radius chi 6 apart from a nearly end position at zero point, position in the square hole of the centre that is connected right leg 5 is pierced in the other end position of radius chi 6, be combined into triangular shaped bascule, function has been the effect that radius size is set.

Below by using method, further set forth the dynamic structure relation of this practical novel bow compass: in use, when needs when drawing circle, the principle similar according to triangle, at first regulate the scale of compasses theta alignment positive angle, draw then, thereby finish the round task of picture.

In use, when needs apart from time time, the principle similar according to triangle, at first needle point and nib are aimed at two end points of line segment respectively, reading then, thereby the task of performance distance or line segment length.The solution that has so just realized novel bow compass of the present utility model is provided with radius easily drawing bowlder, uses the purpose of the technical problem of compasses read line segment length.

Realize that preferred plan of the present utility model is is material with the steel plate, utilize the basic equipment of plotter product goods factory, take to produce by batch in a large number, mapping worker reaches and each pupils and students's demand to supply, and so just can realize the practical value and the economic worth of novel bow compass of the present utility model better.

Claims

1. novel bow compass, it is by handle (1), outrigger (2), internal frame (3), right gear (4), right leg (5), radius chi (6), nut (7), bolt (8), internal segment (9), overcoat (10), pencil-lead (11), pen nib (12), left side leg (13), left gear (14) constitutes, the interstitial hole position of its right gear (4) is installed in the upper end slot position of right leg (5) by screw rod, screw rod end positions welded and installed 2/3 branch place in the middle of the inwall of internal frame (3) that the leg upper end of right leg (5) passes, the interstitial hole position of left gear (14) is installed in the upper end slot position of left leg (13) by screw rod, the screw rod both ends of the surface position welded and installed that the upper end of left side leg (5) passes is position, 1/3 branch place in the middle of the inwall of internal frame (3), it is characterized in that: the tooth position of the tooth position engagement right gear (4) of left gear (14), the upper end position of internal segment (9) is fixed on the lower end position of right leg (5) by nuts and bolt.

2. novel bow compass according to claim 1, the inner wall position that it is characterized in that outrigger (2) are enclosed within position on the outer wall of internal frame (3), and align with the outrigger hole in the screw top hole site of internal frame (3), by being threaded in the external screw thread position, lower end of handle (1).

3. novel bow compass according to claim 1, the madial wall position that it is characterized in that left leg (13) be welded to connect radius chi (6) apart from a nearly end position at zero point, position in the square hole of the centre that is connected right leg (5) is pierced in the other end position of radius chi (6).