CN2316145Y

CN2316145Y - Multifunction ruler

Info

Publication number: CN2316145Y
Application number: CN 97243249
Authority: CN
Inventors: 郑成虎
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-18
Filing date: 1997-12-18
Publication date: 1999-04-28
Anticipated expiration: 2007-12-18

Abstract

The utility model relates to a multifunction ruler which is the improvement of the present multifunctional ruler (patent number 96223512.1). the connecting mode of a main ruler and an auxiliary ruler is that the auxiliary ruler is lapped on the main ruler, and one side of each of the auxiliary ruler and the main ruler coincides. An attachment point which is joint and movably connected is formed at the aligning end of one end of each of the two rulers. The two rulers are rotated by using the attachment point as an axle center, and the existing insufficiency is overcome through the proper distribution of the graduation starting point of the main and the auxiliary rulers and sloping line of the special angle. The utility model has the advantages that straight lines, circular arcs, angles can be continuously and accurately drawn, the line length, diameter of a circle, and side length can be showed and measured, the ruler is not easy to deform, and is firm and durable, etc. The multifunction ruler can satisfy the use requirements of teachers, building decoration personnel and stage design personnel.

Description

The Multifunction ruler

The utility model belongs to the culture and education articles for use, is a kind of ruler with multiple function of use.

We know, and the personnel such as school instruction, architectural decoration, stage design that are engaged in be unable to do without when working and use ruler, compasses, angulation utensil etc.For simplifying the program of drawing various figures, thereby the ruler with multiple function and usefulness also just arises at the historic moment, the patent No. is that 96223512.1 multi-functional ruler just is an example, it can draw straight line, can draw circle, arc, angle etc. again simultaneously, but because bind mode and other structural limitation of its main scale and secondary chi, make it to exist the picture straight line that scarce line phenomenon is arranged, drift angle is difficult to draw when drawing angle, and the length of side tolerance at angle is also not accurate enough, and defective such as firm is also owed in the location during use.

The Multifunction ruler that the utility model proposes can overcome the deficiency of above-mentioned existence, can accurately draw straight line, circular arc, angle and the length of side thereof continuously, and chi tool itself not yielding, firm and durable.

The technical solution of the utility model is as follows:

Accompanying drawing 1 is the utility model surface structure schematic diagram

Structural representation when accompanying drawing 2 is drawn 30 ° of angles for the utility model

Accompanying drawing 3 is the structural representation at the secondary chi of the utility model back side

Accompanying drawing 4 is the structural representation in the utility model main scale front

The structural representation of accompanying drawing 5 when to be the utility model as long chi use

Among the figure: 1 is that main scale, 2 is that secondary chi, 3 is that attacker, 4 is that caulking groove, 5 is that roller, 6 is that tie-point (cored screw, positioning screw cap), 7 is that movable end, 8 is that a hole, 9 is that angle oblique line, 10 is that main scale scale, 11 is that secondary chi scale, 12 is that fin, 13 is that groove, 14 is a circular hole

Now be described further by reference to the accompanying drawings.

Compare with the patent No. 96223512.1 Multifunctional straightedges, it also includes main scale, pair Chi, attacker, circular hole are folded in the master but the combination of its main scale and secondary chi is secondary chi 2 On the chi 1, and coincidence is on one side arranged, a neat end place of two chis consists of an applying activity Tie-point 6, two chis that connect are rotatable as the axle center take this tie-point, and this tie-point is to get A cored screw is rotary with set screw and forms with wearing main scale and secondary chi circular hole 14 on the screw rod. And main scale is provided with fin 12 with secondary chi back side circular hole 14 other chi edge directions and main scale is corresponding The seat is provided with many group grooves 13, and the groove groove can satisfy two chis and be to consistent with the angle oblique line The location of the special angles such as 180 °, 90 °, 60 °, 45 °, 30 °. Main scale and secondary chi The limit that do not overlap be angle oblique line 9 near the tie-point end, and be provided with movable end 7 places on limit Zero graduation starting point, its secondary chi have two zero graduation starting points to lay respectively at the difference end of opposite side. Movable end 7 of the present utility model, secondary chi are equipped with a trundle 5, and wheel shaft and the long limit of chi Direction is consistent, and main scale is provided with caulking groove 4.

The utility model use-case:

When (1) making long chi and use, the operation front and back turn positioning screw cap, and secondary chi turns to the level position flexibly, and the fin at the secondary chi back side is absorbed in corresponding (180 °) groove of main scale, the successive line of drawn straight line, and length has size Expressing.

When (2) doing the set square use, secondary chi goes to required angle index line, and the same fin is absorbed in corresponding (90 °, 60 °, 45 °, the 30 °) groove of main scale, and size dimension directly can show.

When (3) doing the compasses use, required radius of circle is searched on secondary chi, and chalk or other bar penholder are gone into corresponding hole site, is that the center of circle, secondary chi roller roll on blackboard with the tie-point, rotates to circle or camber line smoothly and finishes.

Its simple and practical, firm and durable of the multi-functional ruler structure of the utility model can satisfy teacher, architectural decoration and dance ﹠ art personnel instructions for use.

Claims

1, a kind of Multifunction ruler, the combination that it includes main scale 1, secondary chi 2, attacker 3, a hole 8, the main scale that it is characterized in that it and secondary chi is that secondary chi 2 is folded on main scale 1, and have on one side and overlap, tie-point 6, two chis that a neat end place of two chis constitutes an applying link joint are that the axle center is rotatable with this tie-point.

2, Multifunction ruler according to claim 1 is characterized in that: main scale is angle oblique line 9 with the limit that do not overlap of secondary chi near tie-point 6 places.And the movable end place with the limit is provided with the zero graduation starting point, and its secondary chi has two zero graduation starting points to lay respectively at the difference end of opposite side.

3, Multifunction ruler according to claim 1 is characterized in that: its movable end 7, secondary chi are equipped with a trundle and take turns 5, and axle is consistent with the chi long side direction, and main scale is provided with caulking groove.

4, Multifunction ruler according to claim 1 is characterized in that: the tie-point of its main scale and secondary chi is to get a cored screw with wearing main scale and secondary chi circular hole 14, is rotary with set screw on the screw rod and forms.

5, Multifunction ruler according to claim 1, it is characterized in that: main scale and secondary chi back side circular hole 14 other chi edge directions are provided with fin, corresponding seat with main scale is provided with many group grooves, the groove groove is to consistent with the angle oblique line, can satisfy the location that two chis are special angles such as 180 °, 90 °, 60 °, 45 °, 30 °.