摘要:
A manual floor sweeper includes a housing and a brush roller mounted within the housing and rocatable in a sweeping direction. A first drive member is fixed to the brush roller. A second drive member is mounted rotatably with the housing and engagable with the first drive member. A drive carriage is movable between a first position for engaging the first drive wheel when the sweeper is moved in a first direction so as to rotate the brush roller in the sweeping direction and a second position when the sweeper is moved in a second direction for engaging the second drive member so as to move the brush roller in the sweeping direction.
摘要:
A vacuum cleaner is described which includes a removable filter element (28) and which further includes an indicator member (30) having a first position when the filter member (28) is removed from the cleaner and a second position when the filter member (28) is in place in the cleaner and being readily visible to a user of the vacuum cleaner in at least one of the first and second positions. In the vacuum cleaner described when the indicator member (30) is in the first position the vacuum cleaner cannot be used to collect dust and dirt.
摘要:
A power tool coupling system for coupling two boom members (14,16) of a split-boom power tool (10). The coupling system includes a first section (44) and a second section (46). The first section is adapted to be fixedly attached to an end of a first one of the boom members. The first section includes an aperture (60) for receiving a locating member (38) on a second one of the boom members. The second section is movably connected to the first section. The second section is adapted to depress the locating member, while the locating member is located in the aperture of the first section, when the second section is moved from a first to a second position.
摘要:
A fixed base router (10) is provided comprising a base (12) having a central bore (32). The router includes an adjusting ring (14) rotatably affixed to a base upper end, being coaxial with the central bore, and having a series of gear teeth formed thereto defining a ring gear (68). A motor housing (16), including a motor for imparting rotational motion to a tool holder, is threadably engaged with the adjusting ring. A pinion gear (70), journaled for rotation relative to the base, is engaged with the ring gear (68), and is coupled for rotation with a dial extending from the base. The base is adapted to prevent rotation of the motor housing relative thereto, such that rotation of the adjusting ring axially translates the motor housing relative to the base. The router includes a scale and indicator for indicating fine adjustment of the motor housing relative to the base.
摘要:
A saw such as a chop saw, a circular saw, a compound miter saw (10) or a sliding compound miter saw having a rotatable saw blade (12) is provided with a laser arbor (42) alignment system. The laser arbor (42) may include a power generator (50,56) that generates power as the saw blade (12) and the laser arbor (42) are rotated by a spindle (44). The generator (50,56) may include a stator (50) comprising an electrical magnet or a permanent magnet mounted on a fixed portion of the saw (10). The other portion of the generator (50,56) is a rotor (56) comprising a coil that is rotated with the laser arbor (42) to generate power for the laser (60). Power may also be provided to the laser (60) by slip ring contacts from a stationary source to the laser arbor (42).
摘要:
A table saw such as a chop saw, a miter saw, compound miter saw or a sliding compound miter saw that is provided with a laser arbor alignment system. An opaque shield (30) or transparent shield (30) having an opaque mask (58) blocks the laser beam (48) from being projected into a range of normal operator eye positions (62). One or more openings (56) in the shield (30) or opaque mask (58) provide a sight line on a workpiece initially. As the saw (12) is moved into engagement with the workpiece (18), the shield (30) is pivoted away from the workpiece (18) and a solid laser line is projected on the workpiece (18).
摘要:
A dust and dirt separation assembly (10; 50) for use in a vacuum cleaner, includes a dirty air inlet (12; 52) and a clean air outlet (13; 53) with an airflow path passing firstly through a cyclonic separator (11; 55) for separating larger particles of dirt from the dirty air and secondly through a filtration element (20; 66) for separating smaller particles of dust from the dirty air, a dirt collection chamber (16; 56) to receive dirt from the cyclonic separator and dust from the filter element, and a striker mechanism (30; 70) including a striker member (31; 78) which is operable to strike the filter element to dislodge the dust from the filter element so that the dust enters the collection chamber with the larger particles of dirt. The striker member may be operated in response to cessation of air-flow within a section (32-35) of the air-flow path or by a mechanical actuator (72).
摘要:
A vacuum cleaner head, for attachment directly to a vacuum cleaner body having a central longitudinal axis, has exposed bristles with remote ends on a plane off-set by about 70° to the central axis. The bristles 14 and IS extend along opposing sides of a lower surface of the head in strips at either side of a channel 18 through which dust and debris gathered up by the bristles passes into the vacuum body. The off-set plane means that when the body is held directly or by a handle, a natural comfortable sweeping action, with the handle axis at about 20° to the vertical, keeps both strips of bristle in contact with the swept surface.