A clamping device includes a cylinder, a base body, a movable plate, and holding pins. The movable plate is attached to the base body substantially parallel thereto via two pairs of link arms. The movable plate moves along the operating direction of the cylinder. The movable plate can abut against a width-direction side surface of a workpiece. The holding pins are attached to the movable plate. The holding pins abut against an upper portion of the workpiece.

A carrying device is provided. The carrying device includes a stand, an upper clamp connected to the stand, a lower clamp assembled to the stand, a manipulation mechanism assembled to the stand and interlinked with the lower clamp, and a supporting column assembled to the lower clamp. The manipulation mechanism can drive the lower clamp to move relative to the upper clamp, and the upper clamp and the lower clamp jointly define a receiving space therebetween. The supporting column is movable relative to the lower clamp, so that the carrying device can be adjusted in a first clamping mode or a second clamping mode. When the carrying device is in the first clamping mode, the supporting column is located in the receiving space and faces toward the upper clamp, so that the supporting column and the upper clamp can jointly clamp a plate part of a first structure.

A spring clamp wherein a reduced effort is needed on the handle end as the engagement end is opened further. The spring clamp can include a clamping force adjustment means through the use of a spring pack, central rod and a folding adjuster. The spring clamp can also include low friction mounts at the ends of a spring pack to reduce user effort on the handle end.

A clamp device has first and second jaws movable relative to one another for clamping an object therebetween. A clamp sensor operatively connected to one of the jaws generates a clamping signal representative of a clamping force urging the first and second jaws towards one another. A display is arranged to display a value proportional to the clamping signal which is representative of the clamping force between the first and second jaws. A motor for driving movement of the second jaw relative to the first jaw is operated by a controller that responds to operator commands in a manual control mode and/or which automatically drives the motor so as to maintain the clamping signal measured by the clamp sensor within a prescribed threshold range to apply a constant clamping force between the first and second jaws under an automated control mode.

A clamp device has first and second jaws movable relative to one another for clamping an object therebetween. A clamp sensor operatively connected to one of the jaws generates a clamping signal representative of a clamping force urging the first and second jaws towards one another. A display is arranged to display a value proportional to the clamping signal which is representative of the clamping force between the first and second jaws. A motor for driving movement of the second jaw relative to the first jaw is operated by a controller that responds to operator commands in a manual control mode and/or which automatically drives the motor so as to maintain the clamping signal measured by the clamp sensor within a prescribed threshold range to apply a constant clamping force between the first and second jaws under an automated control mode.

An opening/closing mechanism of a cover member that can easily push down the cover member by the lever member even if the force from the base member side to the cover member is increased, improving the operability of the lever member. A solution is that the lever member 17 is rotatably supported to the base member 23 by the first shaft 31, the link plate 29 is mounted to the lever member 17 by the second shaft 32, the cover member 15 is mounted to the link plate 29 by the third shaft 33, and the link plate 29 is rotated around the axis of the first shaft 31 in the direction in which the lever member 17 closes, so that the link plate 29 moves through the second shaft 32, and the link plate 29 moves, so that the cover member 15 is depressed through the third shaft 33.

A clamping device includes first and second clamping components and at least one elastic component. The first clamping component includes a first clamping portion and two first pivot portions connected to the first clamping portion. The second clamping component includes a second clamping portion and two second pivot portions connected to the second clamping portion. The second pivot portions are pivotally connected to the first pivot portions respectively, such that the first and second clamping components are capable of rotating relative to each other to present a first state and a second state. The elastic component is connected to the first clamping component and the second clamping component. When the first and second clamping components are in the second state, the elastic component provides an elastic force for the first clamping portion and the second clamping portion to be restored to the first state to clamp an object.

A clamping device includes first and second clamping components and at least one elastic component. The first clamping component includes a first clamping portion and two first pivot portions connected to the first clamping portion. The second clamping component includes a second clamping portion and two second pivot portions connected to the second clamping portion. The second pivot portions are pivotally connected to the first pivot portions respectively, such that the first and second clamping components are capable of rotating relative to each other to present a first state and a second state. The elastic component is connected to the first clamping component and the second clamping component. When the first and second clamping components are in the second state, the elastic component provides an elastic force for the first clamping portion and the second clamping portion to be restored to the first state to clamp an object.

A self-releasing clamping tool includes an adapter plate and a planetary gear assembly. The planetary gear assembly includes a central gear and a plurality of adjustable-bolt-pattern gears. The adapter plate includes an inner annular body, a central opening, and a connector plate. The inner annular body is concentrically positioned within the connector plate. The inner annular body is adjacently connected onto a rear surface of the connector plate. The central opening normally traverses through the connector plate. The central opening concentrically is positioned within the inner annular body. The central gear is rotatably mounted to a front surface of the connector plate. The plurality of adjustable-bolt-pattern gears is distributed around the central gear thus allowing to adjust according to lug-holes of the wheel. The plurality of adjustable-bolt-pattern gears is detachably and rotatably mounted to the front surface of the connector plate and mechanically engaged to the central gear.

A self-releasing clamping tool includes an adapter plate and a planetary gear assembly. The planetary gear assembly includes a central gear and a plurality of adjustable-bolt-pattern gears. The adapter plate includes an inner annular body, a central opening, and a connector plate. The inner annular body is concentrically positioned within the connector plate. The inner annular body is adjacently connected onto a rear surface of the connector plate. The central opening normally traverses through the connector plate. The central opening concentrically is positioned within the inner annular body. The central gear is rotatably mounted to a front surface of the connector plate. The plurality of adjustable-bolt-pattern gears is distributed around the central gear thus allowing to adjust according to lug-holes of the wheel. The plurality of adjustable-bolt-pattern gears is detachably and rotatably mounted to the front surface of the connector plate and mechanically engaged to the central gear.