CN2106725U

CN2106725U - Movable t-square

Info

Publication number: CN2106725U
Application number: CN 91200891
Authority: CN
Inventors: 邸国君
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-14
Filing date: 1991-01-14
Publication date: 1992-06-10

Abstract

The utility model relates to a T-square of which the T support moves on the end portion of a straight rule, which is suitable for students to draw parallel ruled lines on a writing book, and belongs to the rule class. The T support (4) of the T-square is connected with the straight rule (1) via a slide block, an elastic sheet reed or a four-bar mechanism; the T support (4) makes the reciprocal motion on the end portion of the straight rule (1); therefore, the T-square adapts to the variance of the thickness of the writing book in the using process; due to the fact that the support surface of the T support (4) is perpendicular to the bottom plane of the straight rule (1), when the T support (4) lies against the edge of the writing book, each line drawn by the straight rule (1) on the writing book is parallel. Therefore, the purpose that the drawing of the parallel lines or ruled lines on the writing book by students is time-saving and labor-saving with convenient use is achieved.

Description

Movable T-square

The utility model is that a kind of motion fourth is leaned on T-square, is used for drawing parallel lines on planar object, is specially adapted to the student and draws parallel ruling usefulness on writing book, belongs to the chi class.

What at present the student drew on writing book that parallel ruling uses is ruler, want with the ruler parallel ruling that on writing book, draws, the long limit that must make ruler is with after the parallel lines on the writing book are parallel, push down 2 points of chi with two fingers, parallel ruling just can draw, but, 2 of nose bar wherein have some power little, chi is moved, therefore, on writing book, draw parallel ruling with ruler, pay higher notice, the long time, draw parallel lines with T-square and to have solved above-mentioned deficiency at 2, because the end fitting of T-square fourth lean on, fourth is vertical with the baseplane of ruler by the face that relies on the writing book limit, with the transverse cross-section parallel of ruler, when fourth lean on touch by face and writing book edge joint the time, chi is parallel with writing book on writing book, the line that comes that draws is parallel lines, and still, writing book in use has the variation of thickness, with drawing board is different, the fourth of the sub-chi of fourth is by immobilizing, when the thickness of writing book less than fourth by by the width of face the time, ruler has just broken away from paper, so the T-square discomfort benefits the usefulness that draws parallel lines on writing book.

The purpose of this utility model provides that a kind of to draw parallel ruling on writing book promptly convenient accurate again, promptly shortened the setting-out time, the motion fourth that has reduced notice again is by T-square, so this chi can be useful on the writing book and draw parallel lines, mainly be at the end fitting of ruler the fourth of motion lean on, the fourth variation of leaning on the thickness that adapts to writing book with motion, that is to say, fourth is by correspondingly moving according to the thickness of writing book, the usage that this chi draws parallel lines on writing book, principle, effect is drawn parallel ruling with T-square on drawing board identical, this chi is on writing book during practical application, fourth by leaning against the writing book limit, what fourth was leaned on touches by face and writing book edge joint, its contact-making surface is vertical with the baseplane of ruler, transverse cross-section parallel with ruler, so, ruler is on writing book, and the long limit of ruler is parallel with writing book, is prolonging the long limit setting-out of ruler, every line all is parallel lines with respect to writing book, the experiment proved that writing book has 3 paper, every paper 40 grams are thick, paper is thick when amounting to 120 grams, this chi parallel ruling that just draws effectively.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof

Fig. 1,2,3,4, the 5th, according to the motion fourth that the utility model proposes stereogram and structure chart, below in conjunction with Fig. 1,2,3,4,5 details and the working conditions that describe in detail according to the concrete device that the utility model proposes by T-square:

In the accompanying drawing 1, the end of ruler (1) is provided with chi head (2), chi head (2) is provided with guide rail, connector (3) is done back and forth in guide rail and is moved both vertically, fourth is fixedlyed connected with connector (3) by (4), and fourth is vertical with the baseplane of ruler (1) by face by (4), with the transverse cross-section parallel of ruler (1), fourth is done by (4) relative ruler (1) and is moved both vertically, and the fourth of motion has adapted to the variation of writing book thickness by (4).

In the accompanying drawing (2), fourth is connected with connector (3) by (4), and certain angle arranged, connector (3) and ruler (1) are done parallel four link motions by connecting rod isometric more than two (6) is hinged, fourth is vertical with the baseplane of ruler (1) by face by (4), and with the transverse cross-section parallel of ruler (1), fourth leans on (4) along with four link motion liftings, and fourth is leaned on the vertical with the baseplane of ruler (1) by face of (4), and is constant with the angle of ruler (1) transverse cross-section parallel.

In the accompanying drawing 3, the chi head (2) of ruler (1) end is provided with guide rail, the angle of the relative ruler of the center line of guide rail (1) baseplane is greater than or less than 90 °, fourth is connected with connector (3) by (4), its angle is to be greater than or less than 90 °, along with connector (3) reciprocatingly slides and lifting in guide rail, fourth is by the transverse cross-section parallel by face and ruler (1) of (4), and is vertical with the baseplane of ruler (1) by (4) for fourth.

Because, the substantially parallel ruling that draws on writing book has just reached the requirement of ruling, again because, when paper thick 120 restrains, this chi is with regard to the parallel ruling that draws effectively, based on this 2 point, fourth is that line contacts by touching with the writing book edge joint by face of (4), its contact wire is parallel with the cross section and the baseplane of ruler (1), parallel ruling equally can draw on writing book, therefore, fourth rotates in the end of ruler (1) by (4) or the T-square of doing curvilinear motion is used in and draws parallel ruling on the writing book and also be suitable for.

In the accompanying drawing 4, fourth is connected with connector (3) by (4), the axle (5) of the other end of connector (3) and ruler (1) end is hinged, rotate, the axial line of axle (5) and the transverse cross-section parallel of ruler (1), fourth by (4) by face be the plane or touching with the writing book edge joint of curved surface is that line contacts, this contact wire is parallel with the cross section and the baseplane of ruler (1), and fourth rotates on ruler (1) by connector (3) by (4) and reached the lifting purpose of fourth by (4).

In the accompanying drawing 5, fourth is connected with rubber-like connector (3) with ruler (1) by (4), utilize elasticity to make fourth lean on (4) on ruler (1), to do curvilinear motion and reach the purpose of fourth by (4) lifting, the fourth of doing curvilinear motion is that line contacts by touching with the writing book edge joint by face of (4), this contact wire is parallel with the cross section and the baseplane of ruler (1), and fourth is plane or curved surface by (4) by face.

The motion fourth is by the usage of T-square and T-square, and principle, effect are identical, and the fourth of different is this chi move by (4), so can be used on the writing book of the continuous variation of thickness.When on writing book, using this chi, as long as fourth touching by (4) by face and writing book edge joint, then, with finger push down ruler (1) a bit, the long limit setting-out of prolonging ruler (1) is exactly a line parallel with writing book, the power of pushing down reason that some chis of ruler (1) just can not move and be another point by fourth by (4) by face and writing book limit rely on mutually produce.Thus, the student on writing book with this chi draw parallel ruling save time, laborsaving, convenient, accurate.

Claims

1, is used on planar object, drawing parallel lines, particularly the motion fourth that the parallel ruling of picture is used on writing book is by T-square, it is made of by (4) ruler (1), chi head (2), connector (3), fourth, it is characterized in that by syndeton fourth moves back and forth by (4) end at ruler (1).

2, motion fourth according to claim 1 is characterized in that by T-square when fourth is leaned on touching with the writing book edge joint by face of (4) be that face contacts, and its contact-making surface is vertical with the baseplane of ruler (1), with the transverse cross-section parallel of ruler (1).

3, motion fourth according to claim 1 is characterized in that by T-square when fourth is leaned on touching with the writing book edge joint by face of (4) be that line contacts, and its contact wire is parallel with the cross section and the baseplane of ruler (1).

4, motion fourth according to claim 1 is by T-square, it is characterized in that fourth leans in (4) and the relative ruler of connector (3) (1) motion, and the intersection of the extension plane of ruler (1) baseplane and the face of leaning on is parallel to the cross section of ruler (1) all the time.

5, motion fourth according to claim 1 is by T-square, the baseplane that it is characterized in that connector (3) relative ruler (1) in the guide rail of chi head (2) back and forth moves both vertically, fourth is by the transverse cross-section parallel by face and ruler (1) of (4), and is vertical with the bottom surface of ruler (1).

6, motion fourth according to claim 1 is by T-square, it is characterized in that connector (3) and ruler (1) wait by plural that long connecting rod (6) is hinged does parallel four link motions, fourth is by the transverse cross-section parallel by face and ruler (1) of (4), and is vertical with the baseplane of ruler (1).

7, motion fourth according to claim 1 is by T-square, the chi head (2) that it is characterized in that ruler (1) end is provided with guide rail, the angle of the baseplane of ruler (1) and the center line of guide rail is greater than or less than 90 °, fourth is greater than or less than 90 ° by the angle of the center line that leans on face and connector (3) of (4), connecting (3) reciprocatingly slides in guide rail, fourth is by the transverse cross-section parallel by face and ruler (1) of (4), and is vertical with the baseplane of ruler (1).

8, motion fourth according to claim 1 is by T-square, it is characterized in that connector (3) is hinged with the axle (5) of ruler (1) end, the axial line of axle (5) and the transverse cross-section parallel of ruler (1), fourth is that line contacts when leaning on touching with the writing book edge joint by face of (4), and its contact wire is parallel with the cross section and the baseplane of ruler (1).

9, motion fourth according to claim 1 is by T-square, it is characterized in that fourth leans on (4) to fixedly connected with rubber-like connector (3) with ruler (1) and do curvilinear motion, fourth is that line contacts when leaning on touching with the writing book edge joint by face of (4), and its contact wire is parallel with the cross section and the baseplane of ruler (1).

10, according to the described motion fourth of claim 1 to 9 by T-square, what it is characterized in that fourth leans on (4) is one by face at least.

11, according to Claim 8,9 described motion fourths are by T-square, it is characterized in that fourth lean on (4) by face be the plane or curved surface.

12, according to the described motion fourth of claim 1 to 9 by the word chi, it is characterized in that fourth leans on (4) to fixedly connected with connector (3), and certain angle arranged.