JPH02136192U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1a is a cross-sectional view of one embodiment of the present invention;
Figure b is a longitudinal sectional view of the same embodiment, Figure 2 is a sectional view of the conventional example, Figure 3 is a plan view of another conventional example, and Figure 4 is a plan view of still another conventional example. . 1... Boring rod, 11, 12... Case, 13, 14... Clamp piece, 15, 27
... Inclined surface, 17, 23 ... Cylinder, 18, 1
9... Piston, 20... Operating rod, 21...
Sliding body, 30...pin, 31...dovetail groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A case through which a boring rod passes vertically, and a sliding body in which a pair of left and right pistons are connected by an operating rod in which an inclined dovetail groove is carved, and the piston slides. a pair of moving left and right cylinders; housed in the case substantially orthogonally to the operating rod; disposed so as to be slidable toward the center of the boring rod; and having an inclined surface formed at the rear thereof; a first clamp piece that engages with the dovetail groove; a second clamp piece that is disposed at a position facing the first clamp piece and is housed so as to be slidable toward the center of the boring rod; A rod clamp device comprising a piston and a cylinder that slidably hold the second clamp piece. (2) In claim (1), the case through which the boring rod penetrates is divided into two parts, one end of each of the second parts is pivoted to each other, and the other end can be opened with a bolt or nut. A rod clamp device characterized by being tightened.