Movable drill rod spacer assembly

2:

• The drill rod spacer assembly according to claim 1, wherein one or more of the spacer members are each arranged in operable association with a respective detent member, each detent member being configured operable for supporting the respective spacer member in its first position when the body moves to interact with another one of the spacer members.

3:

• The drill rod spacer assembly according to claim 1, wherein each spacer member is moveable between its first position and a second position, said second position being one in which the spacer member provides support to one or more drill rods.

4:

• The drill rod spacer assembly according to claim 1, wherein interaction between the body and each spacer member serves to move each spacer member to or toward its first position when the body is moving in a first direction of movement, and permits movement of the or each spacer member away from its first position when the body is moving in a second direction of movement, the second direction of movement being opposite to the first direction of movement.

5:

• The drill rod spacer assembly according to claim 1, wherein each spacer member is arranged so as to rotate or pivot about a respective axis of rotation in moving toward or away from its respective first position,
• wherein the axis of rotation of each spacer member is not fixed, and has freedom to move or translate, and
• wherein a scope of movement of the axis of rotation is constrained.

6-7. (canceled)

8:

• The drill rod spacer assembly according to claim 5, wherein the scope of movement of the axis of rotation is constrained by travel being limited to movement within a slot.

9:

• The drill rod spacer assembly according to claim 1, wherein each spacer member comprises a projecting member which interacts with a channel or groove configured so as to limit the scope of rotational freedom of the spacer member about its axis of rotation.

10:

• The drill rod spacer assembly according to claim 1, wherein each spacer member is rotatably supported by a support structure.

11:

• The drill rod spacer assembly according to claim 10, wherein one or more of the spacer members are each arranged in operable association with a respective detent member, each detent member being configured operable for supporting the respective spacer member in its first position when the body moves to interact with another one of the spacer members, and the support structure is configured so as to rotatably support the detent members.

12:

• The drill rod spacer assembly according to claim 10, wherein the support structure is configured so as to rotatably support more than one set of a plurality of detent members and associated spacer members, each detent member and associated spacer members of one set spaced vertically from another detent member and associated spacer member, each set of spacer members being disposed in side by side relation relative to another set of a plurality of detent members and associated spacer members.

13:

• The drill rod spacer assembly according to claim 10, wherein the support structure is configured so that respective axes of rotation of each spacer member of a set of spacer members is offset from respective axes of rotation of each spacer member of an adjacently disposed set of spacer members.

14:

• The drill rod spacer assembly according to claim 1, wherein, the body is operably associated with a rail along which the body is moveable in first and second directions by way of the drive transfer arrangement.

15:

• The drill rod spacer assembly according to claim 1, wherein each spacer member is arranged so as to rotate or pivot about a respective axis of rotation in moving toward or away from its respective first position;
• and rotation of each spacer member interacted with by the body toward or away from its first position depends on the direction of movement of the body.

16:

• The drill rod spacer assembly according to claim 1, wherein, the body comprises a first side configured for interacting with a respective one of the spacer members as the body moves, said interaction causing rotation of the relevant spacer member to or toward its respective first position.

17:

• The drill rod spacer assembly according to claim 16, wherein, the first side of the body is configured having at least one surface portion which interacts with a portion of a spacer member in moving same to or toward its first position.

18:

• The drill rod spacer assembly according to claim 17, wherein said surface portion, the configuration of the first side of the body is arranged so as to cause an interaction between said first side and the relevant spacer member as the body passes thereby which causes a portion of said spacer member to follow a path of movement operating to rotate said spacer member toward or away from its first position about its respective axis of rotation, depending on the direction of movement of the body.

(canceled)

20:

• The drill rod spacer assembly according to claim 16, wherein the body comprises a second side configured for interacting with a portion of the detent member for moving the detent member into a position in which the detent member provides support to an associated spacer member when in its respective first position.

21:

• The drill rod spacer assembly according to claim 20, wherein the second side of the body comprises a groove, the groove being configured so as to operate as a guide when interacting with said portion of the detent member for guiding movement of the detent member in moving same into a position for conferring support to an associated spacer member when in its first position.

22:

• The drill rod spacer assembly according to claim 20, wherein, the shape of respective first and second sides of the body are configured so as to facilitate the following of respective paths of movement by a spacer member and a detent member operably associated therewith relative to the body, in the movement each spacer member to its respective first position and the movement of the detent member to a position for holding the spacer member in its first position;
• and the configuration of the second side of the body is arranged so as to cause an interaction between said second side and the detent member as the body passes thereby for causing a portion of said detent member to follow a path of movement operating to rotate said detent member toward or away from its respective spacer member support conferring position.

23:

• The drill rod spacer assembly according to claim 1, wherein one or more of the spacer members are each arranged in operable association with a respective detent member, each detent member being configured operable for supporting the respective spacer member in its first position, and each detent member comprises a body rotatable or pivotable about a respective axis of rotation;
• and the body of each detent member comprises a portion configured for engaging a portion of a respective spacer member associated therewith for supporting said spacer member in its first position.

24:

• The drill rod spacer assembly according to claim 23, wherein the body includes a first side and a second side;
• each detent member comprising a projecting member which extends from its body so as to interact with a groove on the second side of the body;
• the projecting member of each detent member is dimensioned so as to be received within the groove of the second side of the body and, one or more edges defining the groove are configured so as to, when interacting with the projecting member of the detent member, bias the movement of the projecting member so as to cause the detent member to rotate about its axis of rotation.

25:

• The drill rod spacer assembly according to claim 24, wherein, each detent member comprises a further projecting member which interacts with a channel or groove configured so as to limit the scope of rotational freedom of the detent member about its axis of rotation.

26:

• The drill rod spacer assembly according to claim 24, wherein, the first and second sides of the body are configured so that the interaction between the second side of the moving body and one of the detent members biases the detent member to or toward a position for supporting the respective spacer member at about the time the interaction between the first side of the moving body and the spacer member completes movement of the spacer member to its first position.

27:

• The drill rod spacer assembly according to claim 1, wherein more than one drill rod spacer is operable with a drill rod storage assembly and arranged cooperatively to move the spacer members, the drive arrangement being mounted with respect to one or more support structures and arranged operable for driving movement of respective bodies or the support structures.

28:

• The drill rod spacer assembly according to claim 27, wherein only a single rotary device is required for operation of the relevant spacer members for a single drill rod storage assembly.

29-31. (canceled)

33-34. (canceled)

36-41. (canceled)