Connecting device of accessory that is detachably attached to accessory shoe device of electronic apparatus, accessory, accessory connecting mechanism, and electronic apparatus system

An accessory that is detachably attachable to an accessory shoe device of an electronic apparatus, the accessory comprising:

• a connecting device comprising:
• an engagement member that is attachable to the accessory shoe device by sliding in a first direction with respect to the accessory shoe device;
• a holding member that holds the engagement member;
• a plurality of fastening members that fix the engagement member and the holding member, the plurality of fastening members including a first fastening member and a second fastening member;
• and
• a connecting plug that has a plurality of connection terminals and is arranged at a front part in the first direction of the holding member, and
• an accessory controller that communicates with the electronic apparatus through the connecting plug,
• wherein the first and second fastening members are arranged at positions that are spaced apart from each other in a second direction that perpendicularly intersects with the first direction,
• wherein a width of the holding member is shorter than a width of the engagement member in the second direction, and the plurality of connection terminals are arranged in an area between the position of the first fastening member and the position of the second fastening member, and
• wherein unexposed portions of the plurality of connection terminals and the first and second fastening members are arranged in line in the second direction.

An accessory connecting mechanism comprising:

• a connecting device of an accessory that is detachably attachable to an accessory shoe device of an electronic apparatus, the connecting device comprising:
• an engagement member that is attachable to the accessory shoe device by sliding in a first direction with respect to the accessory shoe device;
• a holding member that holds the engagement member;
• a plurality of fastening members that fix the engagement member and the holding member
• the plurality of fastening members including a first fastening member and a second fastening member;
• and
• a connecting plug that has a plurality of connection terminals and is arranged at a front part in the first direction of the holding member;
• and
• the accessory shoe device comprising:
• an engaged member that is engaged with the engagement member by sliding the connecting device in the first direction;
• and
• signal terminals that are arranged at a front part in the first direction and contact the plurality of connection terminals in a state where the engagement member is engaged with the engaged member,
• wherein the first and second fastening members are arranged at positions that are spaced apart from each other in a second direction that perpendicularly intersects with the first direction,
• wherein a width of the holding member is shorter than a width of the engagement member in the second direction, and the plurality of connection terminals are arranged in an area between the position of the first fastening member and the position of the second fastening member, and
• wherein unexposed portions of the plurality of connection terminals and the first and second fastening members are arranged in line in the second direction.

An electronic apparatus system comprising:

• an accessory that is detachably attachable to an accessory shoe device of an electronic apparatus, the accessory comprising:
• a connecting device comprising:
• an engagement member that is attachable to the accessory shoe device by sliding in a first direction with respect to the accessory shoe device;
• a holding member that holds the engagement member;
• a plurality of fastening members that fix the engagement member and the holding member, the plurality of fastening members including a first fastening member and a second fastening member;
• and
• a connecting plug that has a plurality of connection terminals and is arranged at a front part in the first direction of the holding member, and
• the accessory shoe device comprising:
• an engaged member that is engaged with the engagement member by sliding the connecting device in the first direction;
• and
• signal terminals that are arranged at a front part in the first direction and contact the plurality of connection terminals in a state where the engagement member is engaged with the engaged member,
• wherein the first and second fastening members are arranged at positions that are spaced apart from each other in a second direction that perpendicularly intersects with the first direction,
• wherein a width of the holding member is shorter than a width of the engagement member in the second direction, and the plurality of connection terminals are arranged in an area between the position of the first fastening member and the position of the second fastening member, and
• wherein unexposed portions of the plurality of connection terminals and the first and second fastening members are arranged in line in the second direction.