摘要:
A replaceable, flexible and resilient grip (40) is slidably fitted over a generally cylindrical handle portion (30) of a power hand tool housing (10). In one embodiment, for use with a pistol grip housing with a separable end cap (20), the grip (40) has a flange (50) which is clamped between the end cap (20) and the barrel (11) of the housing (10) and has lugs (53) which fit in recesses (17, 24) in the barrel (11) and end cap (20). The grip (40) also has a strap portion (48) which fits between the trigger and the barrel (11) and a flange (49) which fits in a groove (39) adjacent to the barrel (11). In another embodiment, the tool has an air exhaust port adjacent to the handle portion and the grip defines an exhaust air passage alongside the handle portion, the grip being held in place by a retaining plate.
摘要:
A combination screwdriver, scraper and prybar (10) has a handle (12) with an elongated shank (11) terminating in a multi-function blade (20). The blade (20) has opposed, flat, planar blade faces (23, 24) converging toward and joined by a distal planar end surface (25) which intersects and is perpendicular to the longitudinal axis (X) of the shank (11). The blade faces (23, 24) are respectfully inclined to the axis (X) at substantially three degrees and substantially seven degrees. The shank (11) may be square or circular in transverse cross section and, if square, opposed sides of the shank (11) lie in planes perpendicular to the blade faces (23, 24).
摘要:
A ratcheting electronic torque wrench (10) has an input beam in the form of a hollow housing (11) with a handle end (29) and a work end (28), a ratchet head (30) disposed within the work end of the housing and rotatable relative thereto and a reaction beam (35) disposed within the housing and having one end fixed to the ratchet head for pivoting therewith about the axis thereof and input end (37) resiliently urged to a neutral position relative to the housing by two bias springs (40, 41) respectively engaging opposite sides of the reaction beam. A Hall-effect sensor (47) carried by the input end of the reaction beam is disposed between two permanent magnets (48a) and is powered by a battery (42) for producing an output indicative of reaction beam movement, which is proportional to applied torque. A display circuit (60) can display the applied torque or a predetermined torque level set by a preset circuit. An alarm signal (87) is generated when the applied torque reaches the predetermined level.
摘要:
A tip valve (22) for a pneumatic tool includes a first valve member (24) having a bore (26) with a central axis (A) and defining a valve seat (30) about the bore (26) and a second valve member (34) having an engaging surface engageable with the valve seat (30) to form a substantially fluid-tight seal therewith.
摘要:
An insulating ratcheting screwdriver includes an elongated composite shank formed of electrically insulating material and provided with a bit holder at a working end thereof. The other end of the shank has an axial recess in which is disposed one end of a hexagonal connecting pin, the other end of which is press-fitted in an axial bore in one end of a metal coupler for joining the coupler to the shank. The metal coupler is removably received in a receptacle formed in a ratchet mechanism disposed in one end of an elongated, electrically insulating handle.
摘要:
A ratchet wrench (10) includes a ratchet head (12) having a part-cylindrical surface (18) with head teeth (20) thereon and an elongated handle (14) hingedly coupled to the head (12). The handle (14) has an axial first bore (32). A rod (46) is disposed in and movable within the first bore (32) between an engaged condition for locking the head (12) in a selected position and non-engaged condition for relative movement between the head (12) and the handle (14). A biasing structure (56) biasses the rod (46) to the engaged condition. A retaining structure (58) is coupled to the rod (46) for retaining the rod in its non-engaged condition.
摘要:
A tip valve (22) for a pneumatic tool includes a first valve member (24) having a bore (26) with a central axis (A) and defining a valve seat (30) about the bore (26) and a second valve member (34) having an engaging surface engageable with the valve seat (30) to form a substantially fluid-tight seal therewith.
摘要:
A refrigerant handling system (10) includes a cabinet (11) having two service ports and two sample ports and housing recycling/recharging apparatus coupled to the service ports and a refrigerant identifier (70) coupled to one of the sample ports and coupled through solenoid-actuated valves (68) to the recharging/recycling apparatus. Two coupling assemblies are provided for coupling the cabinet to the high-pressure and low-pressure sides, respectively, of an automotive air conditioner, each coupling assembly including a service hose with end couplers for respectively coupling to the air conditioner and of the service ports and connected through solenoid-actuated valves disposed within a housing closely adjacent to the air conditioner coupler. Each coupling assembly also has a sample hose communicating with the service hose within the housing between the air conditioner coupler and the valves and having a distal end with a coupler for connection to one of the sample ports, and electrical conductors for control of the valves.