Tripod-connecting adapter

Abstract

A tripod-connecting adapter for connecting a pair of binoculars to a tripod comprising: a base portion that has a width in which a left and a right lens barrels of the pair of binoculars to be placed thereon come into contact therewith, and restricts rotation of the pair of binoculars around a joint shaft that connects the pair of lens barrels of the pair of binoculars; and a holding device that is provided on the base portion and is connected to the joint shaft to support the pair of lens barrels so that said pair of lens barrels may be placed on an upper surface of the base portion to come in contact therewith, and restricts movement of the pair of binoculars in an optical axis direction of the pair of binoculars.

1 . A tripod-connecting adapter for connecting a pair of binoculars to a tripod comprising:
 a base portion that has a width in which a left and a right lens barrels of the pair of binoculars to be placed thereon come into contact therewith, and restricts rotation of the pair of binoculars around a joint shaft that connects the pair of lens barrels of the pair of binoculars; and   a holding device that is provided on the base portion and is connected to the joint shaft to support the pair of lens barrels so that said pair of lens barrels may be placed on an upper surface of the base portion to come in contact therewith, and restricts movement of the pair of binoculars in an optical axis direction of the pair of binoculars.   
     
     
         2 . The tripod-connecting adapter according to  claim 1 , wherein the holding device has a protruding portion protruding upward of the base portion, and a connecting member that is connected to the joint shaft is provided on the protruding portion. 
     
     
         3 . The tripod-connecting adapter according to  claim 2 , wherein the holding device includes a cylindrical shape member, and a relative position between the base portion and the connecting member is adjustable. 
     
     
         4 . The tripod-connecting adapter according to  claim 3 , wherein said surface of the base portion where each lens barrel comes into contact with holds each weight from lower side with holding each lens barrel horizontal. 
     
     
         5 . The tripod-connecting adapter according to  claim 4 , wherein the connecting member fixes a position of the joint shaft with being connected to the joint shaft. 
     
     
         6 . The tripod-connecting adapter according to  claim 5 , wherein the base portion is provided with a hole in up and down direction, and the cylindrical shape member is inserted movably in up and down direction, and
 the base portion has a fixing member that fixes relative position between the connecting member and the base portion.   
     
     
         7 . The tripod-connecting adapter according to  claim 6 , wherein the connecting member is provided integrally with the cylindrical shape member, and moves together with the cylindrical shape member thereby adjusting relative position to the base portion. 
     
     
         8 . The tripod-connecting adapter according to  claim 1 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         9 . The tripod-connecting adapter according to  claim 7 , wherein the fixing member is a clamp mechanism including a female screw that is provided on the base portion to be communicated to a hole in which the cylindrical shape member is inserted and a clamp screw that is screwed into the female screw;
 the clamp mechanism is equipped with a clamp-operating portion removably attached to the clamp screw; and   the base portion has a restricting mechanism that restricts an operating range of the clamp-operating portion attached to the clamp screw within a given range.   
     
     
         10 . The tripod-connecting adapter according to  claim 9 , further comprising:
 a biasing member that biases the cylindrical shape member in a direction that a distance between the connecting member and the base portion narrows.   
     
     
         11 . The tripod-connecting adapter according to  claim 10 , further comprising:
 a resisting member that resists bias force of the biasing member at a position where a distance between the connecting member and the base portion becomes a given distance.   
     
     
         12 . The tripod-connecting adapter according to  claim 2 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         13 . The tripod-connecting adapter according to  claim 3 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         14 . The tripod-connecting adapter according to  claim 4 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         15 . The tripod-connecting adapter according to  claim 5 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         16 . The tripod-connecting adapter according to  claim 6 , wherein the base portion includes a connecting portion that connects to a tripod. 
     
     
         17 . The tripod-connecting adapter according to  claim 7 , wherein the base portion includes a connecting portion that connects to a tripod.