JPH03124900U

JPH03124900U -

Info

Publication number: JPH03124900U
Application number: JP3481390U
Authority: JP
Priority date: 1990-03-31
Filing date: 1990-03-31
Publication date: 1991-12-18

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の一実施例を示し、
第１図は等間隔位置決め装置の平面図、第２図は
同側面断面図、第３図及び第４図は夫々同装置の
動作を示す側面断面図であり、第５図乃至第８図
は従来例を示し、第５図は製図機械の正面図、第
６図は縦レールの底面図、第７図は等間隔位置決
め装置の平面図、第８図は同装置の側面断面図で
ある。１……製図機械、５……縦レール、７……縦キ
ヤリツジ、１１……係止穴、１２，１３，１４，
１５，１６……係止穴の列、２６，２７，２８，
２９，３０……カム、４０……等間隔位置決め装
置、４３，４４，４５，４６，４７……レバー、
４９……第２の突片、５０……第２のカム、５２
……操作レバー。 1 to 4 show an embodiment of the present invention,
FIG. 1 is a plan view of the equidistant positioning device, FIG. 2 is a side sectional view of the same, FIGS. 3 and 4 are side sectional views showing the operation of the device, and FIGS. 5 to 8 are 5 is a front view of a drafting machine, FIG. 6 is a bottom view of a vertical rail, FIG. 7 is a plan view of an equidistant positioning device, and FIG. 8 is a side sectional view of the same device. 1... Drafting machine, 5... Vertical rail, 7... Vertical carriage, 11... Locking hole, 12, 13, 14,
15, 16... row of locking holes, 26, 27, 28,
29, 30... cam, 40... equal interval positioning device, 43, 44, 45, 46, 47... lever,
49...Second projecting piece, 50...Second cam, 52
...Operation lever.

Claims

[Scope of utility model registration request]

A plurality of rows of equally spaced locking holes are arranged in parallel in the longitudinal direction of the vertical rail of the drafting machine, and the spacing is different for each row, and the locking holes are provided in a carriage for moving a scale that is attached to the vertical rail. A plurality of levers are provided which make elastic contact with respective rows of locking holes, and by operating a cam that selectively releases the elastic contact of the levers, the levers are selectively brought into elastic contact with an arbitrary row of locking holes, thereby causing the carriage to travel. In the equidistant positioning device for a drafting machine, which sometimes gives a click feeling and facilitates the drawing of arbitrary equidistant parallel lines, the carriage is provided with a second cam, and the second cam is in the elastic contact state. It is characterized by being formed so that it can be pressed into contact with all the levers, and by operating the second cam, the lever can be pressed and released from elastic contact with the vertical rail, regardless of the operation of the cam. Equal-space positioning device for drafting machines.