Nachi Fujikoshi Corporation

Toyama-shi, Japan

Nachi Fujikoshi Corporation

Toyama-shi, Japan
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Patent
NACHI FUJIKOSHI Corporation | Date: 2015-07-22

The present invention provides a rolling bearing that reduces the weight of a holder, that meanwhile maintains the rigidity of the holder itself, and that makes it possible to minimize increases in rotational torque even when rotating at an extremely high speed. The rolling bearing comprises an inner ring, an outer ring, a plurality of rolling bodies, and a holder for holding the rolling bodies between the inner ring and the outer ring. The holder of the present invention comprises: an annular base section; a plurality of seat sections that extend in the axial direction from the base direction and that are arranged along the circumferential direction of the base section; two claw sections that are provided to both sides of the seat sections in the circumferential direction thereof so as to extend further in the axial direction from each of the seat sections; and a plurality of pocket sections that are for holding the plurality of rolling bodies, each of said pocket sections comprising an inner surface that is formed between adjacent seat sections and between the facing claw sections of the adjacent seat sections. The rolling bearing is characterized in that: the seat sections comprise an inner diameter surface that has a larger inner diameter than the inner diameter surface of the base section; and the pitch diameter of the rolling bodies is larger than the inner diameter of the inner diameter surfaces of the seat sections.


Patent
Nachi Fujikoshi Corporation | Date: 2017-05-31

The present invention provides a rolling bearing that reduces the weight of a holder, that meanwhile maintains the rigidity of the holder itself, and that makes it possible to minimize increases in rotational torque even when rotating at an extremely high speed. The rolling bearing comprises an inner ring, an outer ring, a plurality of rolling bodies, and a holder for holding the rolling bodies between the inner ring and the outer ring. The holder of the present invention comprises: an annular base section; a plurality of seat sections that extend in the axial direction from the base direction and that are arranged along the circumferential direction of the base section; two claw sections that are provided to both sides of the seat sections in the circumferential direction thereof so as to extend further in the axial direction from each of the seat sections; and a plurality of pocket sections that are for holding the plurality of rolling bodies, each of said pocket sections comprising an inner surface that is formed between adjacent seat sections and between the facing claw sections of the adjacent seat sections. The rolling bearing is characterized in that: the seat sections comprise an inner diameter surface that has a larger inner diameter than the inner diameter surface of the base section; and the pitch diameter of the rolling bodies is larger than the inner diameter of the inner diameter surfaces of the seat sections.


Patent
Nachi Fujikoshi Corporation | Date: 2015-11-23

In order to prevent deterioration of sliding performance of a piston and center core misalignment of the piston when the piston moves for its stroke, there is provided an air bypass valve including: a coil casing in which a coil is accommodated; a pilot valve section covered by the coil casing and having a movable iron core inserted in the coil; and a piston section fitted in the coil casing and having a piston with a hole. The air bypass valve further includes a protrusion provided at an edge of an opening portion of the piston casing which constitutes the piston section.


Patent
NACHI FUJIKOSHI Corporation | Date: 2012-05-23

There is provided a vacuum degreasing and cleaning apparatus, including a cleaning chamber having an injector and a sprayer that eject a solvent to an object to be cleaned, a plurality of storage tanks that store the solvent, a distiller that distills the solvent in the storage tank, and a replenisher tank that stores the solvent distilled by the distiller, wherein a heating means is provided in the inside of the sprayer in a nesting way. There is also provided a vacuum degreasing and cleaning method using the aforementioned vacuum degreasing and cleaning apparatus, wherein the solvent is pressurized and supplied to the inside of the sprayer, heated to a temperature not lower than a saturation temperature in the cleaning chamber under a reduced pressure, and thereafter sprayed in the cleaning chamber under the reduced pressure.


Patent
NACHI FUJIKOSHI Corporation | Date: 2012-01-10

An industrial robot comprises an arm which includes a proximal portion rotatably supported on a horizontal rotation shaft of a frame in a cantilever state, a cylindrical case portion formed from the proximal portion side to a distal end of the arm to have an opening portion on the proximal portion side, and an arm distal end portion. The industrial robot also comprises a balancer device which includes a rod, and a cylinder 3a in which the rod is reciprocated. An engagement portion at a distal end of the rod, and a rear end of the cylinder are rotatably supported between a pair of first support portions of the frame, and between a pair of second support portions inside the cylindrical case portion, respectively, so that the cylindrical case portion and the balancer device do not interfere with each other in an extent of rotation of the arm.


Patent
Nachi Fujikoshi Corporation | Date: 2012-11-28

There is provided a vacuum degreasing and cleaning apparatus (1), including a cleaning chamber (4) having an injector (2a, 2b) and a sprayer (3) that eject a solvent to an object to be cleaned, a plurality of storage tanks (5a-5c) that store the solvent, a distiller (6) that distills the solvent in the storage tanks, and a replenisher tank (7) that stores the solvent distilled by the distiller, wherein a heating means (30) is provided in the inside of the sprayer in a nesting way. There is also provided a vacuum degreasing and cleaning method using the aforementioned vacuum degreasing and cleaning apparatus, wherein the solvent is pressurized and supplied to the inside of the sprayer, heated to a temperature not lower than a saturation temperature in the cleaning chamber under a reduced pressure, and thereafter sprayed in the cleaning chamber under the reduced pressure.


Patent
Nachi Fujikoshi Corporation | Date: 2013-06-27

In a melt molding method of germanium, the germanium which is brought into a molten state is sealed in molding dies in an inert gas atmosphere. The molding dies are temperature-controlled from the outside. While gradually cooling the molding dies at a portion or a plurality of portions thereof up to the whole, the germanium is gradually solidified from a side of the portion or sides of the plurality of portions up to the whole. An external ambient temperature of the molding dies is controlled to decrease gradually while ensuring a temperature below a germanium melting point temperature but higher than an inner temperature of the molding die which is cooled. After solidification of the germanium is completed, cooling of the molding dies is continued, and the external ambient temperature is decreased to mold the germanium.


Patent
Nachi Fujikoshi Corporation | Date: 2016-11-23

In order to prevent deterioration of sliding performance of a piston and center core misalignment of the piston when the piston moves for its stroke, there is provided an air bypass valve 10 including: a coil casing 12 in which a coil 25 is accommodated; a pilot valve section 13 covered by the coil casing 12 and having a movable iron core 27 inserted in the coil 25; and a piston section 14 fitted in the coil casing 12 and having a piston 16 with a hole 35. The air bypass valve 10 further includes a protrusion provided at an edge of an opening portion of the piston casing 15 which constitutes the piston section 14.


Patent
NACHI FUJIKOSHI Corporation | Date: 2015-02-27

A cable drawn from a lower arm of a robot into a first upper arm part of an upper arm is further drawn out to an exterior space of the robot through a first hole of a second upper arm part. The cable is drawn in contact with a sidewall part of the second upper arm part, and is disposed in a wrist arrangement portion through a second hole. A slack part is formed taking account of a length of the cable pulled by a wrist when the wrist pivots in the wrist arrangement portion, and the cable is drawn to a tool through a through hole of the wrist.


Patent
NACHI FUJIKOSHI Corporation and Toyota Motor Corporation | Date: 2013-06-27

There is provided a manufacturing process of a battery equipped with a case and an electrode body having a positive electrode, a negative electrode and separators. The electrode body has an upper R portion and the respective separators have surplus portions. The case has an accommodation portion that has an opening in an upper face thereof and accommodates the electrode body, and a lid portion that closes up the opening in the upper face of the accommodation portion.

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