Golf club head or other ball striking device having removable or interchangeable body member

A golf club head comprising:

• a face having a ball striking surface configured for striking a ball;
• a main body member connected to the face and having a rear side opposite the face and a slot located in the rear side of the main body member, wherein an engagement surface is defined within the slot, the engagement surface haven a ramp portion extending inward from an open end of the slot, and wherein the ramp portion widens the open end of the slot such that a width of the slot tapers inwardly from the open end of the slot;
• a removable body member removably connected to the main body member;
• and
• a connecting element removably connecting the removable body member to the main body member, the connecting element comprising a moveable engaging member, wherein the engaging member is moveable between a locked position, where at least a portion of the engaging member is received within the slot to engage the engagement surface to retain the removable body member to the main body member, and an unlocked position, where the engaging member does not engage the engagement surface and the removable body member is removable from the main body member,
• wherein the engaging member is configured to enter the open end of the slot to engage the ramp portion and slide across the ramp portion and into the slot as the engaging member moves from the unlocked position to the locked position.

A wood-type golf club head comprising:

• a face having a ball striking surface configured for striking a ball;
• a main body member connected to the face and defining an internal volume between the face and the main body member, the main body member having a rear side opposite the face and an engagement surface located in the rear side;
• a removable body member removably connected to the main body member;
• and
• a connecting element removably connecting the removable body member to the main body member, the connecting element comprising a pin rotatably mounted to the removable body member and an engaging member connected to the pin, wherein the connecting element is moveable by rotation of the pin between a locked position, where the engaging member engages the engagement surface to retain the removable body member to the main body member, and an unlocked position, where the engaging member does not engage the engagement surface and the removable body member is removable from the main body member,
• wherein the main body member has a plurality of notches located on the rear side, and the removable body member has a plurality of projections, each projection being received in a corresponding one of the notches to cooperate with the connecting element to retain the removable body member to the main body member, and
• wherein each of the notches comprises an elongated channel extending generally in a direction from a front of the head to a rear of the head, and each of the projections comprises an elongated ridge cooperatively dimensioned to be received within a corresponding one of the elongated channels.

A wood-type golf club head comprising:

• a face having a ball striking surface configured for striking a ball;
• a main body member connected to the face and defining an internal volume between the face and the main body member, the main body member having a rear side opposite the face and an engagement surface located in the rear side;
• a removable body member removably connected to the main body member;
• and
• a connecting element removably connecting the removable body member to the main body member, the connecting element comprising a pin rotatably mounted to the removable body member and an engaging member connected to the pin, wherein the connecting element is moveable by rotation of the pin between a locked position, where the engaging member engages the engagement surface to retain the removable body member to the main body member, and an unlocked position, where the engaging member does not engage the engagement surface and the removable body member is removable from the main body member,
• wherein the engaging member comprises a plate extending radially from an axis of rotation of the pin, and
• wherein the plate has a protrusion thereon, and wherein the main body member has a detent proximate the engagement surface that receives the protrusion in the locked position.

A golf club head comprising:

• a face having a ball striking surface configured for striking a ball;
• a main body member connected to the face and having a rear side opposite the face and an engagement surface located in the rear side;
• a removable body member removably connected to the main body member;
• and
• a connecting element removably connecting the removable body member to the main body member, the connecting element comprising a moveable engaging member, wherein the engaging member is moveable between a locked position, where the engaging member engages the engagement surface to retain the removable body member to the main body member, and an unlocked position, where the engaging member does not engage the engagement surface and the removable body member is removable from the main body member,
• wherein the main body member has a plurality of notches, and the removable body member has a plurality of projections, each projection being received in a corresponding one of the notches to cooperate with the connecting element to retain the removable body member to the main body member, and
• wherein each of the notches comprises an elongated channel extending generally in a direction from a front of the head to a rear of the head, and each of the projections comprises an elongated ridge cooperatively dimensioned to be received within a corresponding one of the elongated channels.