The present invention relates to an ergonomic plier tool. More specifically, the invention relates to a piston actuated ergonomic plier tool having a 360-degree rotative and exchangeable head. The tool includes a body, lever, head cylinder, piston and jaw assembly. The disclosed tool allows an operator to work in tight spaces with her hand in one plane, while cutting/manipulating an object in an infinite number of planes different from that of her hand.

The present invention relates to an ergonomic plier tool. More specifically, the invention relates to a piston actuated ergonomic plier tool having a 360-degree rotative and exchangeable head. The tool includes a body, lever, head cylinder, piston and jaw assembly. The disclosed tool allows an operator to work in tight spaces with her hand in one plane, while cutting/manipulating an object in an infinite number of planes different from that of her hand.

The present invention discloses a multifunctional tool, wherein one blade carrier can be folded and stored in one handle, so that the multifunctional tool can be used as scissors and can be used as a utility knife as well. The blade of a blade carrier can be removed, a blade cartridge is mounted on the multifunctional tool, and spare blades can be stored in the blade cartridge. The blade can be replaced by saw blade, so that it can be used as a saw when it is in the form of the utility knife.

The present invention discloses a multifunctional tool, wherein one blade carrier can be folded and stored in one handle, so that the multifunctional tool can be used as scissors and can be used as a utility knife as well. The blade of a blade carrier can be removed, a blade cartridge is mounted on the multifunctional tool, and spare blades can be stored in the blade cartridge. The blade can be replaced by saw blade, so that it can be used as a saw when it is in the form of the utility knife.

A cutting tool includes first and second blades attached to each other by a joint, and first and second handles. A first inlay having a protruding end protrudes into a hole in the first blade. A shaft has a first end joined to the protruding end of the first inlay, and has a second end with at least one transverse shoulder. A second inlay has a protruding end protruding into a hole in the second blade and a hole receives the second end of the shaft, and an engaging surface engages with the shoulder of the shaft. The hole of the second inlay has a shape and width allowing the second end of the shaft with the shoulder to pass into the hole in a release position, but prevents the shaft and shoulder from passing through the hole when the shaft and second inlay are not in the release position.

In one or more embodiments a system of foldable shears is provided, comprising a pair of shearing blades, each blade having a sharp side and a blunt side. The blades are connected to handles via a hinge, and the handles have one side that is straighter and another side that is more rounded or irregularly shaped. One of the blades includes a backward facing hook on the blade's blunt side. Additionally, the blunt side may have partially sharpened serrations or other features. The blades can fold about the hinge for easier transport and storage and the shears are configured so that the hook does not extend past the handles when folded to prevent catching the hook on anything or damaging any nearby equipment.

In one or more embodiments a system of foldable shears is provided, comprising a pair of shearing blades, each blade having a sharp side and a blunt side. The blades are connected to handles via a hinge, and the handles have one side that is straighter and another side that is more rounded or irregularly shaped. One of the blades includes a backward facing hook on the blade's blunt side. Additionally, the blunt side may have partially sharpened serrations or other features. The blades can fold about the hinge for easier transport and storage and the shears are configured so that the hook does not extend past the handles when folded to prevent catching the hook on anything or damaging any nearby equipment.

The present disclosure provides a multifunctional cooking utensil. The multifunctional cooking utensil includes a kitchen knife, a toothed knife, a fork, a turning shovel, and a spoon. The kitchen knife and the toothed knife are assembled to form scissors. The fork and the turning shovel are assembled to form a water filter food clip. The spoon and the fork are assembled to form a water receiving food clip. With the above structure, the cooking utensil implements the functions of the knife, the fork, the turning shovel, the toothed knife, the scissors, and the food clips, and may be applied to restaurants, barbecue restaurants, hotels, and home kitchens, and achieves an integrated use of a plurality of tools.

The present disclosure provides a multifunctional cooking utensil. The multifunctional cooking utensil includes a kitchen knife, a toothed knife, a fork, a turning shovel, and a spoon. The kitchen knife and the toothed knife are assembled to form scissors. The fork and the turning shovel are assembled to form a water filter food clip. The spoon and the fork are assembled to form a water receiving food clip. With the above structure, the cooking utensil implements the functions of the knife, the fork, the turning shovel, the toothed knife, the scissors, and the food clips, and may be applied to restaurants, barbecue restaurants, hotels, and home kitchens, and achieves an integrated use of a plurality of tools.

A blade replacement apparatus of an electric instrument is provided. The blade replacement apparatus includes a nut, a nut loosening/tightening member, a locking member, and an operating member. One of the nut loosening/tightening member and the operating member has a first matching portion, the locking member having a second matching portion. The operating member is movable between an operating position and a non-operating position. When the operating member is in the non-operating position, the first matching portion engages with the second matching portion, and the rotation of the nut loosening/tightening member is obstructed by the locking member. When the operating member is in the operating position, the first matching portion is disengaged from the second matching portion, and the rotation of the nut loosening/tightening member tightens or loosens the nut.