Clamping apparatus
AssigneeKosmek Ltd.
InventorsMasahiro Yoshimi, Junichi Goto
Life of this patent
Estimating the term…
Abstract
A clamping apparatus includes: a support member (19) inserted in a leading-end-side portion of the housing (1) so as to be movable in its axial direction; a resistance giving mechanism (34) configured to give resistance to axial movement of the support member (19); and an engagement maintaining mechanism (26) configured to maintain engagement between a wedge surface (24) of a clamp rod (7) and a locking member (23). When the clamp rod (7) is driven toward a leading end side for unclamping action, the clamp rod (7) moves the locking member (23) toward the leading end side via the support member (19) after the locking member (23) moves radially inward.
Claims11
A clamping apparatus comprising:
- a housing (1);
- a locking member (23) protruding toward a leading end side relative to the housing (1) and configured to be insertable into a hole (Wa) of a to-be-clamped object (W);
- a clamp rod (7) including a wedge surface (24) configured to be engaged with the locking member (23) from the leading end side;
- a driving means (13) configured to drive the clamp rod (7) toward a base end side for clamping action and to drive the clamp rod (7) toward the leading end side for unclamping action;
- a support member (19) supporting a base end portion of the locking member (23) so that the locking member (23) is radially movable, the support member (19) being inserted in a leading-end-side portion of the housing (1) so as to be movable in an axial direction of the housing;
- a resistance giving mechanism (34) configured to give resistance to axial movement of the support member (19) with respect to both directions toward the leading end side and toward the base end side;
- and
- an engagement maintaining mechanism (26) which allows the wedge surface (24) of the clamp rod (7) to be engaged with the locking member (23) so as to be movable relative to each other, wherein
- when the clamp rod (7) is driven toward the leading end side for unclamping action, the clamp rod (7) moves the locking member (23) toward the leading end side via the support member (19) after the locking member (23) moves radially inward.
A clamping apparatus comprising:
- a housing (1);
- a locking member (23) protruding toward a leading end side relative to the housing (1) and configured to be insertable into a hole (Wa) of a to-be-clamped object (W);
- a clamp rod (7) including a wedge surface (24) configured to be engaged with the locking member (23) from the leading end side;
- a driving means (13) configured to drive the clamp rod (7) toward a base end side for clamping action and to drive the clamp rod (7) toward the leading end side for unclamping action;
- a support member (19) supporting a base end portion of the locking member (23) so that the locking member (23) is radially movable, the support member (19) being inserted in a leading-end-side portion of the housing (1) so as to be movable in an axial direction of the housing;
- an engagement maintaining mechanism (26) which allows the wedge surface (24) of the clamp rod (7) to be engaged with the locking member (23) so as to be movable relative to each other;
- and
- a relative movement restriction mechanism (31) configured to restrict radially outward movement of the locking member (23) relative to the clamp rod (7) within a predetermined range when the clamp rod (7) is driven toward the base end side for clamping action, wherein
- the relative movement restriction mechanism (31) is an annular protrusion (30) provided at a leading-end-side end portion of the housing (1) and protruding radially inward, and a hole in the annular protrusion (30) has a diameter equal to or smaller than a diameter of the hole (Wa) of the to-be-clamped object (W).
Dependencies are inferred from the claim text.