Claims
- 1. For use in a graphic recorder in which a moveable pen carriage defines a plurality of pen shuttle channels for slideably receiving a corresponding plurality of pen shuttles, recording pen locking support means comprising:
- a plurality of recording pens each having a generally cylindrical body portion, a recording element tip, and a generally cylindrical bayonet mounting extension coupled to said body portion and having a planar member defining an aperture having a pair of opposed outwardly extending clearance notches overlying said passages, a pin recess interposed between said planar member and said passage, and snap means for engaging one of said pins, said bayonet mounting extension including first lock means having a pair of opposed pins extending outwardly from said bayonet mounting extension;
- a plurality of pen shuttles each having means for slidable attachment within one of said pen shuttle channels and a bayonet mounting receptacle having a generally cylindrical passage, for receiving said bayonet mounting extension, having second lock means; and
- said first and second lock means cooperating to secure said bayonet mounting extension within said bayonet mounting receptacle,
- said bayonet mounting extension each being received within one of said bayonet mounting receptacles by placing said cylindrical extension through said aperture and into said passage in a first rotational position in which said pins are aligned with said clearance notches and thereafter rotating said pen to second rotational position in which one of said extending pins engages said snap means.
- 2. Recording pen locking support means as set forth in claim 1 wherein said generally cylindrical passages each include an inwardly tapered portion and wherein said bayonet mounting extensions each include a tapered conical portion corresponding to said inwardly tapered portions of said passages.
- 3. Recording pen locking support means as set forth in claim 2 wherein each of said planar members is formed on a removable lock plate and is separable from said pen shuttles.
- 4. Recording pen locking support means as set forth in claim 3 wherein each of said lock plates define a first plate having said aperture and clearance notches defined therein and flange member orthogonal to said plate and wherein said pen shuttles each define a locating channel for receiving said flange members.
- 5. Recording pen locking support means as set forth in claim 4 wherein each of said pin recesses includes a valley portion and wherein each of said plates defines an undersurface overlying said pin recess and wherein each of said snap means includes a pair of spaced apart projections defined on each of said undersurfaces proximate each of said valley portions.
- 6. Recording pen locking support means as set forth in claim 5 wherein each of said lock plates define a first pin extending from said plate and a second pin extending from said flange member and wherein each of said pen shuttles includes a pair of apertures receiving said first and second pins to removably secure said lock plates to said pen shuttles.
- 7. In a graphic recorder having a moveable pen carriage, a plurality of pen shuttles movably supported thereon, and a plurality of recording pens; recording pen locking and support means comprising:
- male and female bayonet mounting means defined in each of said recording pens and pen shuttles respectively for removably securing each of said recording pens to a respective one of said pen shuttles in a twist-locking attachment,
- said male bayonet mounting means each including a generally cylindrical extension having a pair of outwardly extending pins having tapered end portions and said female bayonet mounting means each including a generally cylindrical passage defining an inwardly tapered seat configured to receive said tapered end portion of said generally cylindrical extension and lock means for captivating said outwardly extending pins.
- 8. Recording pen locking support means as set forth in claim 7 wherein each of said female bayonet mounting means include a removable lock plate secured to each of said pen shuttles defining a planar member and a flange member perpendicular thereto, said planar member defining an aperture sized to receive said generally cylindrical extension and a pair of outwardly extending notches for receiving said outwardly extending pins when said recording pen is rotationally positioned in a first rotational alignment.
- 9. Recording pen locking support means as set forth in claim 12 wherein each of said generally cylindrical passages includes a pin depression and wherein each of said planar members of said lock plates define a lower surface having a pair of spaced apart projections extending into said pin depression.
- 10. Recording pen locking support means as set forth in claim 9 wherein each of said pen shuttles defines a pair of apertures and wherein said planar member and said flange member of each of said lock plates define outwardly extending pins received within said pair of apertures to secure said lock plate to said pen shuttle.
- 11. Recording pen locking support means as set forth in claim 10 wherein said recording pens each include a pen body coupled to said generally cylindrical extension and supporting a supply of ink within said pen body and wherein said pen body further defines a viewing aperture to said ink supply having a predetermined alignment with said outwardly extending pins.
- 12. Recording pen locking support means as set forth in claim 11 wherein said tapered seats each define a plurality of projections spacing said tapered end portions from said tapered seats.
- 13. For use in a graphic recorder having a moveable pen carriage, a twist-locking pen support system comprising:
- a pen shuttle slideably supported upon said pen carriage and having a pen receptacle defining a cylindrical passage, a lower end defining an inwardly tapered conical pen seat, and an upper end having a generally cylindrical recess, said cylindrical recess extending outwardly beyond said cylindrical passage;
- a recording pen having a writing end defining a cylindrical pen extension, a pair of outwardly extending pins and a tapered conical end portion; and
- a lock plate having a generally planar portion defining a circular aperture larger than said cylindrical passage and smaller than said cylindrical recess defining a pair of outwardly extending notches and having a flange portion joined to said planar portion and generally perpendicular thereto, said lock plate attaching to said pen shuttle such that said planar portion overlies said pen receptacle and said circular aperture is concentric with said cylindrical passage;
- said recording pen being secured to said pen shuttle by aligning said recording pen in a first rotational position in which said cylindrical extension is aligned with said circular aperture and said pins are aligned with said notches, passing said cylindrical extension into said cylindrical passage and passing said pins through said notches and thereafter rotating said pen to a second rotational position in which said pins are nonaligned with said notches and are captivated within said cylindrical recess by said planar portion.
- 14. A twist-locking pen support system as set forth in claim 13 wherein said cylindrical recess defines a depression and wherein said planar portion defines an undersurface having a pair of projections extending toward said depression, said projections and said depression cooperating to grasp one of said pins in said second rotational position of said recording pen.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation in part of a copending application entitled ROTARY ACTION GRAPHIC RECORDING SYSTEM, filed July 20, 1987 in the name of Robert Niemeyer III, Ser. No. 07/075,533 now U.S. Pat. No. 4,763,140 and assigned to the assignee of the present application and which is hereby incorporated by reference.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4157552 |
Nakajima |
Jun 1979 |
|
4763140 |
Niemeyer |
Aug 1988 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
75533 |
Jul 1987 |
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