CN2183897Y

CN2183897Y - Compasses combined with ruler

Info

Publication number: CN2183897Y
Application number: CN 94228079
Authority: CN
Inventors: 陈志荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-21
Filing date: 1994-03-21
Publication date: 1994-11-30
Anticipated expiration: 2004-03-21

Abstract

The utility model relates to a pair of compasses combined with a ruler. The utility model is mainly composed of a ruler body with one or more segments and a positioning rod. The utility model is characterized in that the upper end surface and the lower end surface of the ruler body are provided with upward inclined planes; the upward inclined planes are provided with scales, and the scales are matched with pen holes on a ruler plane formed by two inclined planes so that the utility model has the function of drawing circles; the right side and the left side of the ruler body are provided with a tenon and a tenon hole which are used for being pivoted with a ruler body with two or more segments. The utility model has the advantages that the utility model has the functions of a pair of compasses and a straight ruler; when in use, the utility model is accurate, fast, and simple and convenient.

Description

Compasses combined with ruler

The utility model relates to a kind of drawing instrument, particularly has the compasses chi of compasses and ruler function concurrently.

Present drawing instrument, generally all be to use compasses and ruler, the user according to must size radius utilize ruler to measure distance, be drawn as with compasses again, but because the restriction of compasses size, make compasses can only be fit to picture circle under the certain diameter, and because the design of compasses, a tool such as palpus cooperation pencil uses, thus on paper, make drawing design usefulness usually, and the work of reality picture circle on the engineering, just can't use the compasses of general drawing, we often can see the carpenter or the pincers worker of factory, and desire cutting one must take ruler to measure radius earlier during than big hole, an end of getting rope again is fixing as the center of circle with giving, the other end is pinioned sharp objects such as chalk or iron nail and is come the picture circle, the inconvenience of so not only working, and can't accurately draw circle.

Main purpose of the present utility model provides a kind ofly can accurately draw circle, is suitable for any line tool, and compasses chi that can infinitely extension size, and has ruler functions such as tolerance, drafting straight line concurrently.

The utility model provides a kind of compasses chi, mainly is made of a joint or above chi body 10 and the backstay 20 of a joint; It is characterized in that:

One joint chi body 10, this chi body 10 up is formed slopely an inclined plane 12 from upper and lower end respectively, this inclined plane 12 is provided with scale, be formed with a chi face 19 in 12 on two inclined planes again, this chi face 19 correspondence on the per unit scale is formed with a hole 13, the left surface of chi body 10 is a bulk 24, and the upwards vertical place of this bulk 24 is provided with a screw 15; And

One is screwed together in the backstay 20 in the screw 15, and the top head of this backstay 20 is an embossing shape 21, and the middle section of its head is a screw rod 22, is a pointed locking pin 23 under the screw rod 22.The utility model has compasses and ruler function concurrently, and size can infinitely extend.By embodiment in detail the utility model is described in detail below in conjunction with accompanying drawing.

Figure 1 shows that three-dimensional combination figure of the present utility model;

Figure 2 shows that three-dimensional exploded view of the present utility model;

Figure 3 shows that the state diagram that is connected between chi body of the present utility model and chi body;

Figure 4 shows that the schematic diagram of the utility model second embodiment, is to be the circle that the center of circle is drawn with 0;

Figure 5 shows that the schematic diagram of the utility model second embodiment, is to be the circle that the center of circle is drawn with 3;

Figure 6 shows that the schematic diagram of the utility model the 3rd embodiment, is to be the circle that the center of circle is drawn with 4;

Figure 7 shows that the schematic diagram of the utility model the 3rd embodiment, is to be the circle that the center of circle is drawn with 5.

Embodiment 1

See also Fig. 1, shown in Figure 2, be made of a joint or above chi body 10 and the backstay 20 of a joint, this chi body 10 up is formed slopely an inclined plane 12 from upper and lower end respectively, and this inclined plane 12 is provided with scale can provide a ruler function; In between two inclined planes, be formed with a chi face 19 again, this chi face 19 is formed with a hole 13 in the per unit scale, its unit scale is that per 1 centimeters is to there being a hole 13, penetrate therebetween for nib, when treating to obtain the radius of circle of minimum scale, can make the locking pin 23 of backstay 20 penetrate a hole 13 is that the picture circle is implemented in the axle center.

The top head 21 of this backstay 20 is an embossing shape, can force in this in order to the staff, and the frictional force that provides of place is rotated and is taken out or placement positioning bar 20 thus, in the middle section, below of head 21 is a screw rod 22, and in the below of screw rod 22 is a locking pin 23, can utilize the center of circle location of pointed locking pin 23 with chi body 10.

Please consult shown in Figure 3ly more simultaneously, respectively be provided with a tenon 14 and a mortise 16 on the left and right side of this chi body 10,, allow the user can draw large scale circle or straight line in order to connecting two joints or the above chi body 10 of two joints; Again, this left surface is block 24, offer a mortise 16 on this bulk 24, and in block 24 and the axial place of 16 of mortises be provided with a hole 15, again, be provided with a perforation 17 at vertical place of right flank upper convex tenon 14, the screw rod 22 of backstay 20 can be screwed together in the screw 15 and screw togather, backstay 20 is fixed on the chi body 10 with screwed hole 17.

When size surpasses the maximum magnitude of these compasses chi, available its tenon 14 and another pitch circle scale structure 30 ' mortise 16 engage, and utilize fixed bar 20 to pass the screw 15 of the second joint chi body and the mortise 17 of first segment chi body can make the combination firmly of compasses chi, so just can not be subjected to maximum sized restriction, its working range of expandable extension.

Moreover, chi face 19 high scales of this compasses chi structure 30 indicate 300 centimetres length, centimetre being unit, initial initial point is 0 sign, then second is denoted as 1, the 3rd is denoted as 2, the 4th is denoted as 3, all the other then by that analogy, its last be denoted as 300, adding up to altogether has 301 round dots, if need to draw certain bowlder, backstay 20 must be separated 15 in hole, and the locking pin 23 of backstay 20 belows is fixed on the center of circle indicate 0 place, again nib is inserted in can the picture circle on will a hole 13 of distance.

Embodiment 2

See also Fig. 4 and shown in Figure 5, its structure is identical with first embodiment haply, only its not exist together be the design difference of the unit's of being scale, be to begin 1,2,3,4 with initial round dot 0 on 300 centimetres on this ruler ... indicate scale, and in 0,2,4,6 ... 300 even numbers indicates the scale position and is provided with round dot perforation 13, and is provided with in the left side of beginning initial point 0 and is denoted as 3 round dot perforation 13; If it is 30 centimetres circle that the staff need draw radius, then the locking pin 23 with backstay 20 penetrates in 13 location, a hole that are denoted as 0, and nib is penetrated in a hole 13 that indicates 30, is the center of circle with backstay 20, and moving a tool can the picture circle.Seeing also shown in Figure 5ly, is 31 centimetres circle if desire to ask radius, then backstay 20 is penetrated in a hole 13 that is denoted as 3, and nib penetrated is denoted as in 28 the hole 13, can obtain the circle of being asked.

Embodiment 3

See also Fig. 6, shown in Figure 7, its structure is identical with first embodiment haply, only its not exist together be the design difference of the unit's of being scale, it is 3 compasses chis that round dot is made a sign and is provided with a hole 13 at this every interval, and be denoted as 4 round dot in the left side of initial initial point 0 and be provided with a hole 13, and be denoted as 5 round dot in the rightmost side of initial initial point 0 and be provided with a hole 13, whenever being spaced apart 3 round dot distances this moment is that a compasses chi that indicates is promptly finished, if the radius of being asked is removed by 3, if remainder is 1, being the center of circle to indicate 4 then, if remainder is 2, is the center of circle to indicate 5 then; Seeing also shown in Figure 6ly, is 31 centimetres circle if desire to ask radius, and 31 centimetres of this length are removed by 3, and its remainder is 1, is the center of circle to indicate 4 then, and nib is penetrated in indicating a hole 13 of 27, and required circle can draw; See also shown in Figure 7ly, if the radius of asking is 32 centimetres a circle, this length is removed by 3 for 32 centimetres, its remainder is 2, is the center of circle to indicate 5 then, and its distance with radius 305 deducts 32 and gets 267, then nib is penetrated in being denoted as a hole 13 of 267, required circle can draw.

Because design philosophy of the present utility model is length distance picture to be divided into countless holes form, so be not subjected to various restrictions apart from long measure, therefore can be made into the compasses chi of various units, and when in fact it use, need only on article, indicate the picture radius of a circle distance of giving, mobile then compasses chi structure, the center of circle is placed the starting point that sets radius distance, and find out a hole site at the terminal point of radius distance, again with the fixing center of circle of backstay, the circle that can draw and be asked, hence one can see that the utility model are in use, with very accurately, fast, easy, and the use that is easy to carry about with one.

Claims

1, a kind of compasses chi mainly is made of a joint or above chi body (10) and the backstay (20) of a joint; It is characterized in that:

One joint chi body (10), this chi body (10) up is formed slopely an inclined plane (12) from upper and lower end respectively, this inclined plane (12) is provided with scale, between two inclined planes (12), be formed with a chi face (19) again, this chi face (19) correspondence on the per unit scale is formed with a hole (13), the left surface of chi body (10) is block (24), and the upwards vertical place of this bulk (24) is provided with a screw (15); And a backstay (20) that is screwed together in the screw (15), the top head of this backstay (20) is embossing shape (21), the middle section of its head is a screw rod (22), is a pointed locking pin (23) under the screw rod (22).

2, by the described compasses chi of claim 1, it is characterized in that: the unit scale can be every interval 2 unit distances and the initial point place is provided with a hole (13), and scale is arranged and be provided with a hole (13) in the 3 unit distance places, left side of initial initial point sign.

3, by the described compasses chi of claim 1, it is characterized in that: the unit scale can be every interval 3 unit distances and initial initial point place is provided with a hole (13), and sign has scale and is provided with a hole (13) in the 4 unit distance places, left side of initial initial point, and scale is arranged and be provided with a hole (13) in the 5 unit distance places, the rightmost side of compasses chi sign.

4, by the described compasses chi of claim 1, it is characterized in that: this unit scale can various different numerical value units be represented.

5, by the described compasses chi of claim 1, it is characterized in that: the left and right side of this chi body respectively is provided with a tenon (14) and a mortise (16), and is provided with a perforation (17) in vertical place of tenon (14).