FR2400437A1 - Lock for head of draughting machine - has rigidly held locking plate with detent notches spaced radially along circumference - Google Patents

Lock for head of draughting machine - has rigidly held locking plate with detent notches spaced radially along circumference

Info

Publication number
FR2400437A1
FR2400437A1 FR7824211A FR7824211A FR2400437A1 FR 2400437 A1 FR2400437 A1 FR 2400437A1 FR 7824211 A FR7824211 A FR 7824211A FR 7824211 A FR7824211 A FR 7824211A FR 2400437 A1 FR2400437 A1 FR 2400437A1
Authority
FR
France
Prior art keywords
locking
head
lock
locking plate
spaced radially
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7824211A
Other languages
French (fr)
Other versions
FR2400437B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Kuhlmann KG
Original Assignee
Franz Kuhlmann KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Franz Kuhlmann KG filed Critical Franz Kuhlmann KG
Publication of FR2400437A1 publication Critical patent/FR2400437A1/en
Application granted granted Critical
Publication of FR2400437B1 publication Critical patent/FR2400437B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/08—Protractor heads

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Machine Tool Units (AREA)
  • Sawing (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The drawing head of a draughting machine has a locking plate held rigid against turning on the drawing head, which has a number of locking notches offset against each other at pre-set angular distances along the outer edge of the plate. A spring tensioned locking lever has a swivel linkage, with the scale rulers mounted on a rotatable section and a centring projection in the form of the locking notches. Stops on either side of each locking notch(16) are located radially outside, with hard non-wearing surfaces against which an attachment of the centring projection of the locking lever hits before the centring projection makes soft contact with the fine locking notch.
FR7824211A 1977-08-19 1978-08-18 Lock for head of draughting machine - has rigidly held locking plate with detent notches spaced radially along circumference Granted FR2400437A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2737556A DE2737556C3 (en) 1977-08-19 1977-08-19 Locking device for the drawing head of a drawing machine

Publications (2)

Publication Number Publication Date
FR2400437A1 true FR2400437A1 (en) 1979-03-16
FR2400437B1 FR2400437B1 (en) 1983-10-07

Family

ID=6016859

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824211A Granted FR2400437A1 (en) 1977-08-19 1978-08-18 Lock for head of draughting machine - has rigidly held locking plate with detent notches spaced radially along circumference

Country Status (4)

Country Link
JP (1) JPS5442215A (en)
DE (1) DE2737556C3 (en)
FR (1) FR2400437A1 (en)
IT (1) IT1098109B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884222A (en) * 1942-03-12 1943-08-06 Improvements to drawing devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884222A (en) * 1942-03-12 1943-08-06 Improvements to drawing devices

Also Published As

Publication number Publication date
DE2737556C3 (en) 1980-03-06
DE2737556B2 (en) 1979-06-21
FR2400437B1 (en) 1983-10-07
IT7826829A0 (en) 1978-08-18
JPS5442215A (en) 1979-04-04
IT1098109B (en) 1985-09-07
DE2737556A1 (en) 1979-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse