Accessory adapter

• US 4,057,816 A
• Filed: 01/13/1976
• Issued: 11/08/1977
• Est. Priority Date: 01/13/1976
• Status: Expired due to Term

• Current Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Original Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Inventors: Morse, John B., Killian, John C. Jr.
• Primary Examiner(s): Gonzales, John
• Application Number:
  US05/648,724
• Time in Patent Office: 665 Days
• Field of Search: 248/187, 354/293, 354/295, 354/81
• US Class Current: 396/544
• CPC Class Codes: F16M 11/041 Allowing quick release of the apparatus
• CPC Class Codes: F16M 2200/02 Locking means
• CPC Class Codes: G03B 17/566 Accessory clips, holders, shoes to attach accessories to camera if integral part of camera body G03B17/02

Abstract

An adapter for connecting a camera not provided with a tripod socket to a tripod. The adapter comprises a housing, a threaded insert for receiving a tripod screw in the housing, and a dovetail shoe adapted to fit a cooperating dovetail slot in the camera bottom. The dovetail shoe is formed with an opening in which there is a brake assembly movable by a manually operable lever between locked and unlocked positions.

Claims

1. An adapter for securing a photographic accessory having a tripod screw to a camera having a dovetail slot, comprising a housing, means forming a tripod socket in said housing, a dovetail shoe mounted on said housing and adapted to extend into the dovetail slot in the camera, means forming an aperture in one side of said dovetail shoe, a lock slide, means mounting said lock slide in said aperture for movement between a first position within the confines of said dovetail shoe and a second position beyond the confines of said shoe, a resilient element mounted on said lock slide in position to engage the dovetail slot in said second position of said lock slide, and cam means for moving said lock slide between said first and second positions.

2. An adapter for releasably coupling a camera accessory to a camera of the type including a dovetail slot having first and second side portions, said adapter comprising:

an adapter housing;

a camera accessory mounted on said adapter housing;

a dovetail shoe on said adapter housing having first and second side portions and being configured to extend into the dovetail slot of the camera with said first and second side portions of said shoe in engagement, respectively, with the first and second side portions of the dovetail slot such that said shoe is coupled to the dovetail slot for sliding movement relative thereto;

brake means, including resilient means, mounted on said shoe for movement relative thereto between a first position wherein said brake means is located within the confines of said shoe so as to not engage either one of the first and second side portions of the dovetail slot when said shoe extends thereinto thereby allowing sliding movement of said shoe relative to said slot and a second position wherein at least said resilient means of said brake means extends outwardly beyond the confines of said shoe when said shoe is in the slot for engaging at least one of said first and second side portions of the slot and providing a frictional force that effectively inhibits sliding movement of said shoe relative to the slot; and

means actuable for effecting the movement of said brake means between said first and second positions.

3. An adapter as defined in claim 2 wherein the dovetail slot of the camera is tapered and said shoe is tapered in a manner to conform to the tapered slot.

4. An adapter as defined in claim 2 wherein said camera accessory includes a tripod socket.