Clamping device

A hoist clamp device for clamping an object, preferably plate material, to a clamping portion, comprising:

• a frame;
• a first clamping part, movably connected to the frame and provided with a first gripping surface;
• a second clamping part, coupled to the frame, provided with a second gripping surface, and arranged with respect to the first clamping part so as to clamp the clamping portion of the object between the second gripping surface and the first gripping surface,
• in which the first clamping part is movable with respect to the second clamping part in order to clamp the clamping portion of the object by moving the first clamping part from a free position into a clamping position, and
• in which the second clamping part is furthermore provided with a gripping part, provided with the second gripping surface, which gripping part is designed to allow a displacement with respect to the frame away from the first gripping surface as long as a clamping force of the first clamping part on the second clamping part is below a minimum value.

A clamping device for an object, such as a plate, comprising:

• a frame provided with a slot for accommodating at least part of the object;
• a first clamping part, pivotably connected to the frame at one side of the slot and to a first gripping surface directed towards the slot;
• a second clamping part connected to the frame and to a second gripping surface directed towards the first gripping surface,
• with the gripping surface on the first clamping part at an increasing radius with respect to the pivot axis, and in which the second clamping part comprises a carrier part which is connected to the frame and a gripping part provided with the second gripping surface, coupled to the carrier part, in which the gripping part is movable with respect to the carrier part.