Abstract: A rotation sensor of a bearing with a rotation sensor comprises a sensor housing having a sensor and mounted on an outer race, and a sensor target ring having a detector sensed by the sensor and separated from an inner race, in which a setscrew is provided so as to be displaced to a first position between a through-hole formed in the sensor housing and a screw hole formed in the sensor target ring or a second position in which it is held in either one of recesses.

Abstract: A torque limiter comprising an inner ring fitted inside an outer member; and a torque transmission member interposed between said inner ring and said outer member. A predetermined torque is generated by a friction generated between said inner ring and said torque transmission member, when said inner ring and said outer member rotate relatively to each other. The members are impregnated with lubricating oil to slide said members on each other. The lubricating oil contains a base oil consisting of synthetic saturated hydrocarbon oil having a kinematic viscosity of 500 to 1200 mm2/s at 40° C. and an emulsifier added to said base oil. The lubricating grease contains the base oil consisting of the synthetic saturated hydrocarbon oil having a kinematic viscosity of 500 to 1200 mm2/s at 40° C. and an emulsifier and a thickener both added to said base oil.

Abstract: The bearing unit includes a bearing 1 and bearing unit forming component parts such as, for example, a housing 11 in which the bearing is incorporated, a shaft 19, covers 3 and 4 and a sealing member 10 for the housing. In this bearing unit, at least one of the bearing unit forming component parts is fitted with an IC tag 15 and an IC tag 16 is also fitted to the bearing 1. The IC tag 16 fitted to the bearing unit forming component part is of a read/write type whereas the IC tag 16 fitted to the bearing 1 is of a read-only type. The read-only IC tag 16 fitted to the bearing 1 is recorded with information necessary to correlate the bearing unit forming component part, to which the IC tag 15 is fitted, with the bearing unit 1.

Abstract: A reversible transmission mechanism includes an input member rotatable about a fixed shaft and having a bevel gear, a first shaft member rotatable about the fixed shaft and having a shaft portion extending perpendicular to the fixed shaft, and a second shaft member rotatable about the fixed shaft and rotationally fixed to the first shaft member. An output member is rotatably mounted around the second shaft member and has a bevel gear at one end thereof axially facing the bevel gear of the input member. A planetary bevel gear is rotatably mounted around the shaft portion of the first shaft member so as to mesh with the bevel gears of the input and output members. The second shaft member is selectively coupled to and uncoupled from the output member by a clutch. When the second shaft member is uncoupled from the output member, the rotation of the second shaft member is stopped by a brake.

Abstract: To provide an IC-tagged bearing device, in which difficulties brought about by reflection and/or absorption of radio waves upon and/or in raceway members or the like can be avoided, information recording can be accomplished satisfactorily, an IC tag itself does not require an antenna, and the IC tag can have a compact, yet large capacity. The bearing device, having a bearing space delimited between inner and outer races (1, 2) and sealed by a sealing member (5), includes an IC tag (9) which utilizes a core metal (6) as an antenna and which is fitted to the sealing member (5). The sealing member (5) is made of a rubber material or a synthetic resin having the core metal (6).

Abstract: A rotation sensor of a bearing with a rotation sensor comprises a sensor housing having a sensor and mounted on an outer race, and a sensor target ring having a detector sensed by the sensor and separated from an inner race, in which a setscrew is provided so as to be displaced to a first position between a through-hole formed in the sensor housing and a screw hole formed in the sensor target ring or a second position in which it is held in either one of recesses.

Abstract: A torque limiter comprising an inner ring fitted inside an outer member; and a torque transmission member interposed between said inner ring and said outer member. A predetermined torque is generated by a friction generated between said inner ring and said torque transmission member, when said inner ring and said outer member rotate relatively to each other. The members are impregnated with lubricating oil to slide said members on each other. The lubricating oil contains a base oil consisting of synthetic saturated hydrocarbon oil having a kinematic viscosity of 500 to 1200 mm2/s at 40° C. and an emulsifier added to said base oil. The lubricating grease contains the base oil consisting of the synthetic saturated hydrocarbon oil having a kinematic viscosity of 500 to 1200 mm2/s at 40° C. and an emulsifier and a thickener both added to said base oil.

Abstract: A combined sensor and bearing assembly of the present invention includes a bearing (1) having an inner race (2) and an outer race (3), and a rotation sensor unit (11) having a code wheel (6) and a sensor (10). The sensor (10) is mounted on the non-rotating outer race (3) and the code wheel (6) is provided on a rotary member (30) rotatable together with the rotating inner race (2). The code wheel (6) is mounted on the rotary member (30) with an annular end face of the inner race (2) taken as a reference in positioning. The rotation sensor unit (11) is, for example, an optical rotation sensor unit. A sensor housing (20) concurrently serves as a non-contact sealing member for sealing an annular bearing space between the inner and outer races (2) and (3).

Abstract: A reverse-input shutoff clutch according to the invention includes an outer ring as an input-side rotation member, an inner ring as an output-side rotation member, rollers as torque transmission means, a cage for retaining the roller, a centering spring as an elastic member for positioning the cage, a housing as a stationary-side member, and a sliding spring coupled to and co-rotate with the cage while sliding against the housing. With the constitution described above, the clutch applies rotational resistance induced by friction resistance to the cage.

Abstract: A one-way clutch is provided which has improved compactness. The one-way clutch comprises an inner member, an outer ring relatively rotatably mounted on the inner member, a rolling element mounted between the inner member and the outer ring, and a spring member for biasing the rolling element in one direction. A rolling element receiving portion having a predetermined wedge angle and a spring receiving portion communicating with the rolling element receiving portion are provided between the inner member and the outer ring. The spring member is received in the spring receiving portion, and the rolling element is received in the rolling element receiving portion and biased by the spring member toward the narrow side of the rolling element receiving portion. The inner member has a semi-columnar portion, which forms the rolling element receiving portion and the spring receiving portion.

Abstract: Disclosed is a lubricating composition such as a lubricant, a lubricating grease, or a rust preventive oil for use in a torque limiter and a ball-and-roller bearing; the lubricating composition having chemical attack resistance for a synthetic resin molded product. The lubricating composition comprises as a base oil at least one synthetic saturated hydrocarbon oil selected from the group consisting of a poly-&agr;-olefin, and an ethylene-&agr;-olefin copolymer. When a phosphoric acid ester is used as a compounding agent, or at lease one lubricating grease selected from the group consisting of an urea compound, silica powder, and bentonite powder is mixed therein, the lubricating composition is a rust preventive oil using a metal salt of sulfonic acid and the like. The lubricating composition is suitably used for machine parts of a business machine including the synthetic resin molded product.

Abstract: Disclosed is a lubricating composition such as a lubricant, a lubricating grease, or a rust preventive oil for use in a torque limiter and a ball-and-roller bearing; the lubricating composition having chemical attack resistance for a synthetic resin molded product. The lubricating composition comprises as a base oil at least one synthetic saturated hydrocarbon oil selected from the group consisting of a poly-&agr;-olefin, and an ethylene-&agr;-olefin copolymer. When a phosphoric acid ester is used as a compounding agent, or at lease one lubricating grease selected from the group consisting of an urea compound, silica powder, and bentonite powder is mixed therein, the lubricating composition is a rust preventive oil using a metal salt of sulfonic acid and the like. The lubricating composition is suitably used for machine parts of a business machine including the synthetic resin molded product.

Abstract: It is aimed to provide a compact torque limiter to be used for a personal printer. It has a sleeve having an annular boss portion, and a ring-like elastic member. The sleeve generates a radial force relative to a shaft inserted in the sleeve by imparting elasticity in the diameter-reducing direction to the sleeve by fitting an elastic member onto the sleeve to reduce its diameter.

Abstract: A one-way clutch is provided which has improved compactness. The one-way clutch comprises an inner member, an outer ring relatively rotatably mounted on the inner member, a rolling element mounted between the inner member and the outer ring, and a spring member for biasing the rolling element in one direction. A rolling element receiving portion having a predetermined wedge angle and a spring receiving portion communicating with the rolling element receiving portion are provided between the inner member and the outer ring. The spring member is received in the spring receiving portion, and the rolling element is received in the rolling element receiving portion and biased by the spring member toward the narrow side of the rolling element receiving portion. The inner member has a semi-columnar portion, which forms the rolling element receiving portion and the spring receiving portion.

Abstract: A reverse-input shutoff clutch according to the invention includes an outer ring as an input-side rotation member, an inner ring as an output-side rotation member, rollers as torque transmission means, a cage for retaining the roller, a centering spring as an elastic member for positioning the cage, a housing as a stationary-side member, and a sliding spring coupled to and co-rotate with the cage while sliding against the housing. With the constitution described above, the clutch applies rotational resistance induced by friction resistance to the cage.

Abstract: A winding unit is provided in which one-way clutches for driving and braking are mounted in the inner surface of the reel and a web such as a cover tape 39 is wound by intermittently rotating the reel. Tension acting on the web can be released during replacement of the reel. A spring type torque limiter 18 is disposed between the reel boss 25 and outer rings 12, 12′ of the one-way clutches 9, 11 for driving and braking. The torque limiter 18 is arranged such that, during rotation in the winding direction, a coil spring 27 locks to transmit torque, and when the reel is forcibly turned in the unwinding direction, slip occurs, thus releasing the tension in the web.

Abstract: A method of manufacturing an ink cartridge for use in an ink jet recorder including positioning a container body having a bottom wall and an opening on a pallet such that the bottom wall faces upward, the container body including a porous member, a foam chamber for accommodating the porous member therein, and an ink supply port, having an inlet formed in the bottom surface of the foam chamber and an outlet; inserting packing into the ink supply port; sealing the ink supply port outlet; resetting the container body on the pallet by turning the container body upside down such that the opening faces upward; affixing a filter to the ink supply port inlet; inserting the porous member into the foam chamber; bonding a cover to the opening of the container body; injecting ink into the foam chamber; and sealing the cover.

Abstract: A method of manufacturing an ink cartridge for use in an ink jet recorder including positioning a container body having a bottom wall and an opening on a pallet such that the bottom wall faces upward, the container body including a porous member, a foam chamber for accommodating the porous member therein, and an ink supply port, having an inlet formed in the bottom surface of the foam chamber and an outlet; inserting packing into the ink supply port; sealing the ink supply port outlet; resetting the container body on the pallet by turning the container body upside down such that the opening faces upward; affixing a filter to the ink supply port inlet; inserting the porous member into the foam chamber; bonding a cover to the opening of the container body; injecting ink into the foam chamber; and sealing the cover.

Abstract: A torque limiter having an inner cylinder, an outer cylinder rotatably mounted around the inner cylinder, a closure member mounted between the outer cylinder and the inner cylinder to close one end of the outer cylinder, a coil spring mounted between the inner cylinder and the outer cylinder and having one end coupled to the outer cylinder and the other end coupled to the closure member so as to be tightened against the outer peripheral surface of the inner cylinder. The outer peripheral surface of the inner cylinder has a roughness Ra (arithmetical mean deviation) of 0.6-1.0, and the coil spring is formed of a wire having a circular cross-section.