In a clamping device (1), in particular vice, the clamping device comprising: a housing (2) which is U-shaped in cross-section and in which one or two guideways (8) extending in a linear direction are incorporated, at least one base jaw (11) which is mounted in the guideway (8) and in which an internal thread (12) is provided, and a drive spindle (9) which is rotatably mounted in the respective housing (2), is arranged parallel to the guideway (8) and is drivably coupled to the respective base jaw (11),
the threads (10) worked into the drive spindle (9), through which the torques from the crank are transmitted for the linear displacement of the base jaws (11), should be permanently encapsulated in a watertight and airtight manner irrespective of the position of the base jaws (11) or the drive spindle (9), and on the other hand the adjustment travel (Δs) of the base jaws (11) or clamping jaws (13) should be as large as possible in order to clamp workpieces with configurations that can be completely different without the need for time-consuming and complicated conversion measures. This is achieved in that a right-hand thread and a left-hand thread (10) are worked onto the drive spindle (9) in regions, in that the respective thread (10) of the drive spindle (9) is enclosed or encapsulated by a cover sleeve (21), in that the cover sleeve (21) has a right-hand thread and a left-hand internal thread (22), which are drivably coupled to the respective thread (10) of the drive spindle (9), in that a right-hand and a left-hand external thread (23), which is in engagement with the respective internal thread (12) of the base jaw (11), is worked on to the cover sleeve (21).

An output rod (20) of an electric clamping device includes: a tubular power transmission member (25) screw-connected to a decelerator (6); and an output rod main body (24) disposed radially inward of an inner peripheral surface of a cylindrical hole of the power transmission member (25) with a clearance between the output rod main body (24) and the inner peripheral surface. The output rod (20) further includes: a rotation preventing mechanism (26); a lock-side driving mechanism (27, 42), a release-side driving mechanism (28), and an output rod guide mechanism (29).

An output rod (20) of an electric clamping device includes: a tubular power transmission member (25) screw-connected to a decelerator (6); and an output rod main body (24) disposed radially inward of an inner peripheral surface of a cylindrical hole of the power transmission member (25) with a clearance between the output rod main body (24) and the inner peripheral surface. The output rod (20) further includes: a rotation preventing mechanism (26); a lock-side driving mechanism (27, 42), a release-side driving mechanism (28), and an output rod guide mechanism (29).

A clamping system includes a housing, a clamping lever pivotally coupled relative to the housing, a clamping arm pivotally coupled relative to the housing and the clamping lever, and an expandable link coupled to the clamping arm. The clamping lever and the clamping arm are rotatable from an open position to a closed (clamped) position. A method of mounting a device on a substrate using the clamping system is also provided.

Attachments for a clamping device can be used to increase the contact area between the jaws and the object to allow the clamping device to handle irregular objects, such as non-flat panels of metal, granite, ceramic, glass, quartz, or concrete plates. The attachments can include plate assemblies to be attached to the sides of the irregular objects. The attachments can include jaw plate assemblies to be attached to the sides of the jaws of the clamping device.

The present invention is generally directed towards clamps for high tension load applications. In particular, the invention relates to high holding power clamps in which fabric can be secured, and which can withstand a large amount of force, including, in at least some embodiments, the maximum amount of tension permitted in various modern high strength fabrics and/or fiber weaves. In at least one embodiment, a holding clamp has a single-V design, with at least three areas that exert pinching effects on fabric held in the clamp, and at least four capstan areas that exert capstan effects on the clamped fabric. In at least a further embodiment, a holding clamp has a double-V design, with at least six areas that exert pinching effects on fabric held in the clamp, and at least seven capstan areas that exert capstan effects on the clamped fabric.

A substrate clamping apparatus includes a substrate holding part which is movable between a closed state in which a substrate is clamped and an open state in which clamping of the substrate is released, a support column part which supports the substrate holding part and is capable of being raised and lowered, and an interlocking mechanism which interlocks a raising and lowering operation of the support column part with an opening and closing operation of the substrate holding part, in which an opening and closing operation range A of the substrate holding part in an up-and-down stroke S of the support column part includes at least a part of an intermediate region M of the up-and-down stroke S.

A substrate clamping apparatus includes a substrate holding part which is movable between a closed state in which a substrate is clamped and an open state in which clamping of the substrate is released, a support column part which supports the substrate holding part and is capable of being raised and lowered, and an interlocking mechanism which interlocks a raising and lowering operation of the support column part with an opening and closing operation of the substrate holding part, in which an opening and closing operation range A of the substrate holding part in an up-and-down stroke S of the support column part includes at least a part of an intermediate region M of the up-and-down stroke S.

A clamping tool (1) is disclosed suitable for securing underwater protective shields, jackets and covers. A system is also described comprising the clamping tool and a protective shield, jacket or cover. The clamping tool (1) comprises a clamp (2), a jaw attachment (12) and a plurality of locking bolts (46). The clamp (2) comprises a first claw (20), a second claw (22), and a pivot (3). The jaw attachment (12) comprises a first tube (40) connected to the first claw (20) and a second tube (42) connected to the second claw (22). The first tube (40) and the second tube (42) comprise a plurality of holes (44) for receiving the plurality of locking bolts (46) and the pivot (3) is configured to transform a rotational torque applied by a user into a clamping pressure of the jaw attachment (12).

A clamp rod (2) is inserted into a housing so as to be movable in a vertical direction. An attachment hole (6) is provided at a left end portion (3a) of a clamp arm (3), which is attachable to and detachable from the clamp rod (2). The attachment hole (6) passes through the left end portion in the vertical direction. An accommodation hole (8) is provided at a position to the upper right of the attachment hole (6). A transmission member (10) and a wedge member (15) configured to be brought into wedge engagement with the transmission member (10) from above are inserted into the accommodation hole (8). At the time of attaching the clamp arm (3) to the clamp rod (2), the wedge member (15) is pressed downward using a tightening bolt (21), and thereby the wedge member (15) presses the attachment hole (6) via the transmission member (10) and the clamp rod (2), and presses the accommodation hole (8).