公开(公告)号：DE3611284A1

公开(公告)日：1987-10-22

申请号：DE3611284

申请日：1986-04-04

Applicant: APPLIED POWER INC

Inventor： FROHN GUSTAV

IPC: B25B21/00

公开(公告)号：DE3776936D1

公开(公告)日：1992-04-09

申请号：DE3776936

申请日：1987-04-02

Applicant: APPLIED POWER INC

Inventor： FROHN GUSTAV

IPC: B25B21/00

Abstract: The power-driven spanner has a piston in a housing turning a lever on an axis at right angles to its own, the lever containing a rotary ratchet wheel with spring-loaded pawls, so as to transmit drive in one direction. Inside the lever (4) the ratchet wheel (8) is unsymmetrical along its axis (11) and in stepped sections of different diameters, so as to form an annular shoulder (14), bearing against a side face (15) of the lever. The smaller-diameter portions of the wheel can be arranged to fit in beairngs (2,3) on either side of the housing.

公开(公告)号：DE3774466D1

公开(公告)日：1991-12-19

申请号：DE3774466

申请日：1987-04-02

Applicant: APPLIED POWER INC

Inventor： FROHN GUSTAV

IPC: B25B21/00 ,  B25B23/00

Abstract: The power-driven screw driver has a housing, with an adjustable support foot (10), so that during a screwing movement, a piston pivots a clamp lever (4) with a ratchet-type clamp wheel (6), and any counter momentum is deflected to an external abutment. The support foot is inserted into a deep bore (2) in the housing (1), which is pref. shaped like e.g. a bone, and extends through the housing at right angles to the movement direction of the working piston (5) for the clamp lever movement. Clamp screws (34) permit the foot to be fixed at any point of the bore.

公开(公告)号：DE3611368A1

公开(公告)日：1987-10-08

申请号：DE3611368

申请日：1986-04-04

Applicant: APPLIED POWER INC

Inventor： FROHN GUSTAV

IPC: B25B21/00 ,  B25B23/00

公开(公告)号：DE3579494D1

公开(公告)日：1990-10-11

申请号：DE3579494

申请日：1985-02-22

Applicant: APPLIED POWER INC

Inventor： MIERBACH HANS-BERND ,  FROHN GUSTAV ,  BLOCKISCH OLAF

IPC: B25B21/00

Abstract: The nut-runner has a power arm and a reaction arm constructed preferably as a casing, each of which is guided in a first end region so as to be pivotable opposite the other about a common axis. It has a clamp wheel with gearing mounted in a drilled hole in the first end region of the power arm so as to be rotatable about the axis, and a catch mounted on the power arm and interacting with this clamp wheel, said catch being in the engaged position when the power arm pivots in one direction, in which said catch engages with the teeth of the clamp wheel and slips over the teeth of the clamp wheel when the power arm pivots in the other direction. The nut-runner also has a hydraulic power cylinder consisting of a cylinder and a piston and acting between the two arms in the vicinity of their other end regions. The reaction arm encompasses the clamp wheel through a maximum of 180 degrees. The arm engage each other by way of a circular guide positioned concentrically relative to the axis, extending through a maximum of 180 degrees, and consisting of a guide groove and a projection, said guide being positioned between the axis and the second end region of the arms.

公开(公告)号：DE3565487D1

公开(公告)日：1988-11-17

申请号：DE3565487

申请日：1985-02-22

Applicant: APPLIED POWER INC

Inventor： MIERBACH HANS-BERND ,  FROHN GUSTAV ,  BLOCKISCH OLAF

IPC: B25B21/00

Abstract: PCT No. PCT/DE85/00055 Sec. 371 Date Oct. 25, 1985 Sec. 102(e) Date Oct. 25, 1985 PCT Filed Feb. 25, 1985 PCT Pub. No. WO85/03897 PCT Pub. Date Sep. 12, 1985.The power screw driver has a power arm (2) and a reaction arm (1), as well as a ratchet wheel (7) and a multi-toothed pawl (8), that meshes with this ratchet wheel and that meshes with several teeth of the ratchet wheel (7) when the power arm (2) is in a rotational direction and when it is in the other rotational position, the pawl slips over the teeth of the ratchet wheel (7). Finally a hydraulic power cylinder is provided between the two arms (1, 2). The power arm (2) has a drive head (9), which is inside the cylinder bore hole (11) and engages in a recess (14) of the piston (13). The cylinder bore hole runs obliquely, in particular at a right angle to the power arm (2).

公开(公告)号：DE3420446A1

公开(公告)日：1985-12-05

申请号：DE3420446

申请日：1984-06-01

Applicant: APPLIED POWER INC

Inventor： MIERBACH HANS BERNHARD ,  FROHN GUSTAV

IPC: B25B21/00

Abstract: The nut-runner has a power arm and a reaction arm constructed preferably as a casing, each of which is guided in a first end region so as to be pivotable opposite the other about a common axis. It has a clamp wheel with gearing mounted in a drilled hole in the first end region of the power arm so as to be rotatable about the axis, and a catch mounted on the power arm and interacting with this clamp wheel, said catch being in the engaged position when the power arm pivots in one direction, in which said catch engages with the teeth of the clamp wheel and slips over the teeth of the clamp wheel when the power arm pivots in the other direction. The nut-runner also has a hydraulic power cylinder consisting of a cylinder and a piston and acting between the two arms in the vicinity of their other end regions. The reaction arm encompasses the clamp wheel through a maximum of 180 degrees. The arm engage each other by way of a circular guide positioned concentrically relative to the axis, extending through a maximum of 180 degrees, and consisting of a guide groove and a projection, said guide being positioned between the axis and the second end region of the arms.