Abstract:
A pawl for use in a ratchet wrench having a ratchet gear in an opening and the pawl in a communicating pawl opening. A detent ball and spring are in a bore in the wrench communicating with the pawl opening. A relief surface is formed on each side surface of the pawl extending from the front surface of the pawl toward the back surface. The front surface of the pawl has an intermediate surface having opposite ends forming teeth. A tooth is formed on the approximate mid-point of the intermediate portion. The back face of the pawl has two pockets separated by a center ridge. Each pocket has a ramp near the center ridge, each ramp joins a concave portion. A furrow is formed in at least one pocket extending from the bottom surface of the pawl to a point opposite the bore for the detent spring such that the detent ball may be introduced into the furrow and directed into the bore. A spacing hub is formed on the pawl to minimize friction between the pawl and the cover plate.
Abstract:
A ratchet tool for assembly and disassembly-of a scaffold has a handle, a hammer tip, a ratchet gear, a socket and a prybar. The hammer tip is connected to a disc driver which has a male portion to engage a slot in the top of the gear allowing the gear to be turned manually. Thus the socket connected to the gear may be turned manually by finger turning of the hammer head. A prybar is formed on the end of the handle opposite from the head of the tool.
Abstract:
A tool holder includes an upper end wall, a lower end wall, two lateral walls each having an upper portion, and a bottom wall. The lower end wall includes a number of spaced first notches defined therein and spaced along a lengthwise direction thereof. A wall defining a portion of each notch includes a retaining end edge formed on a distal end thereof for securely retaining an end of a tool. A restraining member is removably mounted to the lower end wall to prevent the tool held by the tool holder from being removed. The restraining member includes a number of second notches respectively aligning with the first notches and through which the other end of the tool extends.
Abstract:
A universal joint to transmit force from a tool to a workpiece. A driver attachable to the tool has a spherical cavity. A plurality of inwardly facing protrusions are formed in the cavity. Each protrusion has a pair of conical sidewalls separated by an angled ramp. A driven socket has a sphere formed on one end. The sphere has a plurality of channels. The sphere is received in the spherical cavity in the driver and the protrusions in the cavity are received in the channels. The drive webs forming the channel engage the protrusions when the driver is angularly offset from the driven socket.
Abstract:
A ratcheting tool includes a handle and a box end extending from the handle. The box end has a first compartment and a second compartment communicating with the first compartment, a wall defining the second compartment having a cavity. A gear wheel is rotatably mounted in the first compartment and includes an inner periphery for engaging with a fastener and an outer periphery with a number of first teeth. A pawl is mounted in the second compartment and includes a first side with a number of second teeth facing the first teeth of the gear wheel and a second side facing away from the gear wheel. The second side of the pawl includes an eccentrically located groove with a rectilinear section that is at an angle with a longitudinal direction of the handle. A ball is partially received in the cavity and contacts with the groove of the second side of the pawl. An elastic member is mounted in the cavity for biasing the ball toward the groove of the second side of the pawl. The pawl is moved toward the gear wheel to cause the second teeth of the pawl to securely mesh with the first teeth of the gear wheel. The pawl is also moved to bear against a wall defining the second compartment.
Abstract:
A tool display box includes a main body having a number of spaced resilient retaining plates projecting outward therefrom. A holding space is defined between each two adjacent resilient retaining plates to hold a tool by two mutually facing walls of the two adjacent resilient retaining plates. Each resilient holding plate includes a distal end having a notch defined therein. A retaining member is secured to each resilient holding plate and includes a passage aligned with the notch. A locking member is extended through the notches of the resilient holding plates and the passages of the retaining members for preventing removal of the tool in the holding space.
Abstract:
A one or two sided or headed ratcheting driving wrench. Each side or head has a rotatable tool carrier constrained to rotate in only one direction by interengaging teeth formed in the tool carrier and in its housing. Both sets of teeth may be pointed or rounded. In one direction, torque locks the tool carrier to the housing, and thus drives a tool such as a screw driver blade or a socket. In the other direction, torque causes the tool carrier to disengage from the housing. Thus, intermittent one way rotation is assured. The chamber is slightly elongated, having two rows of teeth, each row separated from the other by stretches of chamber wall lacking teeth. Should the tool carrier back out of contact with one row of teeth, it will shortly engage the second row of teeth, thereby maintaining driven relationship with the working head. The wrench has a bent lever or handle to allow for working in tight quarters. The tool carrier has a square hole formed therein, for receiving a driven tool. The driven tool comprises a square block cooperating with the square hole of the tool carrier, and has two oppositely oriented blades, sockets, or other tool elements. Optionally, the square block is separate from the driven tool, and is employed with a secondary tool. Also optionally, a fastener is formed integrally with the tool carrier. The wrench preferably has provision for limiting torque acting on the driven member.
Abstract:
A tool display pack includes a board and a security device. The board has an engaging hole with a shoulder section. The security device includes an end pivotally connected to the boar. A resilient locking member projects from an inner side of the security device that faces a front side of the board. The resilient locking member includes a hook formed on a distal end thereof and a protrusion formed adjacent to the hook. The security device includes a through-hole through which a tool to be displayed is extended. The locking member is extendible through the engaging hole of the boar such that the protrusion and the hook of the resilient locking member are located on a rear side of the board. The protrusion is releasably engaged, with the shoulder section of the board, and the hook prevents pivotal movement of the security device relative to the board when the hook is moved to bear against the shoulder section of the board, thereby locking the tool in place.