Lens barrel attachment
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorHaruki Eguchi
Life of this patent
Estimating the term…
Abstract
A lens barrel attachment including an attachment ring and a handle in which a click pin is housed. The attachment ring is rotatably fitted on a large-sized lens barrel. The handle is threadingly fitted in a handle hole formed in the attachment ring and extending in a radial direction thereof. The click pin is provided in an accommodation hole formed in the handle and urged by a spring to be engaged with engaging recesses formed on an outer surface of the lens barrel. The handle has a contact portion at the tip portion thereof. This contact portion is brought into frictional contact with the lens barrel to thereby fix the lens barrel to the attachment ring.
Claims11
A lens barrel attachment for attaching a lens barrel to a tripod, said lens barrel having engaging recesses formed on an outer surface thereof and aligned on a circle having a center coinciding with a center of said lens barrel, said lens barrel attachment comprising:
- an attachment ring connected to said tripod at a first portion, said attachment ring being rotatably fitted on said outer surface of said lens barrel and provided with a handle hole extending in a radial direction thereof;
- a handle movably fitted in said handle hole and having a contact portion able to be brought into frictional contact with said lens barrel;
- a pin supported by said handle and movable in a radial direction of said attachment ring;
- and
- means for urging said pin so that a tip portion of said pin is objected onto said lens barrel relative to said contact portion, to be thereby engaged with one of said engaging recesses;
- wherein said handle is threadingly fitted in said handle hole, and is rotatable therein such that said contact portion selectively comes into contact with said lens barrel or is separated from said lens barrel.
A lens barrel attachment for attaching a lens barrel to a tripod, said lens barrel having engaging recesses formed on an outer surface thereof and aligned on a circle having a center coinciding with a center of said lens barrel, said lens barrel attachment comprising:
- an attachment ring connected to said tripod, said attachment ring being rotatably fitted on sad outer surface of said lens barrel and provided with a handle hole extending in a radial direction thereof;
- a handle threadingly fitted in said handle hole, to be thereby rotatable in said handle hole such that a tip portion of said handle is selectively pressed against said lens barrel or separated from said lens barrel;
- a pin supported by said handle and movable in a radial direction of said attachment ring;
- and
- means for urging said pin so that a tip portion of said pin is projected onto said lens barrel relative to said contact portion, to be thereby engaged with one of said engaging recesses.
A lens barrel attachment for attaching a lens barrel to a tripod, said lens barrel having engaging recesses formed on an outer surface thereof, said lens barrel attachment comprising:
- an attachment ring rotatably fitted on said outer surface of said lens barrel and provided with a handle hole extending in a radial direction thereof;
- a handle threadingly fitted in said handle hole and having a tip portion able to be brought into frictional contact with said outer surface of said lens barrel;
- a pin supported by said handle;
- means for urging said pin so that a tip portion of said pin is engaged with one of said engaging recesses;
- and
- means for connecting said attachment ring to said tripod.
A lens barrel attachment for attaching a lens barrel to a tripod, said lens barrel having engaging recesses formed on an outer surface thereof and aligned on a circle having a center coinciding with a center of said lens barrel, said lens barrel attachment comprising:
- an attachment ring connected to said tripod at a first portion, said attachment ring being rotatably fitted on said outer surface of said lens barrel and provided with a handle hole extending in a radial direction thereof;
- a handle movably and threadably fitted in said handle hole and having a contact portion above to be brought into frictional contact with said lens barrel, said handle being rotatable in said handle hole such that said contact portion selectively comes into contact with said lens barrel or is separated from said lens barrel;
- a pin supported by said handle and movable relatively to said handle in a radial direction of said attachment ring;
- and
- means for urging said pin so that a tip portion of said pin is projected onto said lens barrel relative to said contact portion, to be thereby engaged with one of said engaging recesses.
Dependencies are inferred from the claim text.