Abstract: A fastener structure for fastening a first member and a second member using a taper implant having a threaded hole therein. The taper implant has a frusto-conical outer surface, a projecting portion connected to a larger diameter end and a threaded hole passing therethrough. The first member has a wall portion with a tapered hole extending therethrough and a counterbored portion adjacent a larger diameter end to receive the projection portion of the taper implant. The taper implant is inserted into the hole of the first member and held therein by frictional contact. The second member has a wall portion with a hole therethrough. The second member is positioned in contact with the first member and the two members are fastened together by inserting a male screw through the hole of the second member and threading the male screw into engagement with the threaded hole of the taper implant.

Abstract: In an eyeglasses to which the invention is applied, a taper nut having a collar portion and a conical taper portion is fitted and attached to a hole having a circular truncated cone shape and pierced in an eyeglasses part. A hole for passing a male screw therethrough is formed in another eyeglasses part, and the eyeglasses parts are connected to each other by screwing the male screw inserted to the hole with a female screw provided in an inner portion of the taper nut. Further, continuous holes having a circular truncated cone shape are pierced in both the connected eyeglasses parts. It is possible to prevent both the eyeglasses parts from rotating with each other by fitting the taper nut to the hole, and both the parts are connected by engaging the male screw from a side in which the taper of the taper nut is reduced.

Abstract: A taper implant of the invention comprises a taper portion having an outer surface being frustconical in shape, a flange portion formed at an outermost end of the taper portion on the larger-diameter side to project outward with respect to the taper portion and having a flat surface lying perpendicularly to the axial direction of the taper portion, and female threads serving as a fit portion extending in the axial direction of said taper portion. A hole taper portion and a hole step portion are drilled at the same time to bore a hole in one of members to be fastened, and the taper implant is driven into the hole, thereby providing a screw-fastening structure for the fastened members. The taper implant ensuring good working efficiency is achieved.

Abstract: A method of fastening a first member and a second member using a taper implant having a threaded hole therein includes providing a taper implant having a frusto-conical outer surface, a projecting portion connected to a larger diameter end and a threaded hole passing therethrough and providing a first member having a wall portion with a tapered hole extending therethrough and having a counterbored portion adjacent a larger diameter end to receive the projection portion of the taper implant. The taper implant is inserted into the hole of the first member and held therein by frictional contact. A second member is provided having a wall portion with a hole therethrough. The second member is positioned in contact with the first member and the two members are fastened together by inserting a male screw through the hole of the second member and threading the male screw into engagement with the threaded hole of the taper implant.

Abstract: A method of fixing a taper implant to a receiving member includes providing a taper implant having a frusto-conical outer surface, a projecting portion connected to a larger diameter end and a smaller diameter end. A receiving member is provided which has a wall portion with a passing-through hole therein with at least a portion of the passing-through hole being tapered to form a frusto-conical shape whereby the taper portion has a larger diameter end and a smaller diameter end and the passing through hole has a cylindrical counterbored portion adjacent to the larger diameter end in which the projecting portion of the taper implant is received. A taper rate of the taper portion of the passing through hole is the same as a taper rate of the taper portion of the taper implant.

Abstract: A member coupling device is provided for use with a treatment apparatus which uses chemicals. The member coupling device is formed with a tapered hole including a tapered hole portion which diverges toward an opening. A tapered implant is inserted into the tapered hole from an enlarged side of the tapered hole portion and fitted therein. The implant includes a tapered portion in contact with the tapered hole portion, and a first thread formed on the tapered portion. With the implant fitted in the tapered hole, a member is placed in contact with the member coupling device. A second thread formed on a fastening member is engaged with the first thread of the implant in a screw coupling configuration to mount the member on the member coupling device.

Abstract: A taper implant includes a taper portion having an outer surface frust-conical in shape. A flange portion is formed at an outermost end of the taper portion on the larger-diameter side to project outwardly with respect to the taper portion and having a flat surface situated perpendicularly to the axial direction of the taper portion, and female threads serving as a fit portion extending in the axial direction of the taper portion. A hole taper portion and a hole step portion are drilled at the same time to bore a hole in one of the members to be fastened, and the taper implant is driven into the hole, thereby providing a screw fastening structure for the fastened members.

Abstract: A taper implant of the invention comprises a taper portion having an outer surface being frustconical in shape, a flange portion formed at an outermost end of the taper portion on the larger-diameter side to project outward with respect to the taper portion and having a flat surface lying perpendicularly to the axial direction of the taper portion, and female threads serving as a fit portion extending in the axial direction of said taper portion. A hole taper portion and a hole step portion are drilled at the same time to bore a hole in one of members to be fastened, and the taper implant is driven into the hole, thereby providing a screw-fastening structure for the fastened members. The taper implant ensuring good working efficiency is achieved.

Abstract: A taper implant of the invention comprises a taper portion having an outer surface being frustconical in shape, a flange portion formed at an outermost end of the taper portion on the larger-diameter side to project outward with respect to the taper portion and having a flat surface lying perpendicularly to the axial direction of the taper portion, and female threads serving as a fit portion extending in the axial direction of said taper portion. A hole taper portion and a hole step portion are drilled at the same time to bore a hole in one of members to be fastened, and the taper implant is driven into the hole, thereby providing a screw-fastening structure for the fastened members. The taper implant ensuring good working efficiency is achieved.

Abstract: A present invention provides a locking mechanism capable of preventing a bolt from loosening. A bolt 5 has a head provided with a first part which comprises openings 511. A locking washer 4 is provided with a second part which includes outer projections 411 and a third part which includes insertion projections 401 on an outer edge. A taper piece 1 has a portion provided with a fourth part which comprises openings 105. The first part and the second part can engage with each other and the third part and the fourth part can engage with each other when said bolt 5 fastens at least two members 7 and 8 trough said washer 4 and said taper piece 1. Accordingly, the bolt 5 is prevented from rotating in an loosening direction.

Abstract: A member coupling device is provided for use with a treatment apparatus which uses chemicals. The member coupling device is formed with a tapered hole including a tapered hole portion which diverges toward an opening. A tapered implant is inserted into the tapered hole from an enlarged side of the tapered hole portion and fitted therein. The implant comprises a tapered portion in contact with the tapered hole portion, and a first thread formed on the tapered portion. With the implant fit in the tapered hole, a member is placed in contact with the member coupling device. A second thread formed on a fastening member is engaged with the first thread of the implant in a screw coupling configuration to mount the member on the member coupling device.

Abstract: A mold for making a plastic product according to the present invention comprises a tapered mold and a mold base. The tapered mold having a tapered portion with an outside surface formed in a truncated cone shape and a fixture portion formed at an end on a wide side of the tapered portion. The mold base having at least one hole made therein. The fixture portion is inserted into the hole made in the mold base so that the tapered mold is affixed to the mold base.

Abstract: A taper implant of the invention comprises a taper portion having an outer surface being frustconical in shape, a flange portion formed at an outermost end of the taper portion on the larger-diameter side to project outward with respect to the taper portion and having a flat surface lying perpendicularly to the axial direction of the taper portion, and female threads serving as a fit portion extending in the axial direction of said taper portion. A hole taper portion and a hole step portion are drilled at the same time to bore a hole in one of members to be fastened, and the taper implant is driven into the hole, thereby providing a screw-fastening structure for the fastened members. The taper implant ensuring good working efficiency is achieved.

Abstract: A tapered barrel with a female thread is embedded in a tapered hole of a first soft member. A tapered barrel with a throughhole is embedded in a tapered hole of a second soft member. A bolt is inserted through the throughhole and screwed into the female thread. The tapered hole has a tapered portion, the height of which is substantially equal to the length of a tapered portion of the tapered barrel.

Abstract: A depositing apparatus includes a profile-following mechanism having a translational displacement mechanism portion and a rotation mechanism portion adapted to allow a head to be swung in the directions of both X and the Y axes so that the head follows a profile of the surface of workpiece smoothly around a first contact point, thereof with the workpiece, serving as a fulcrum point.

Abstract: A drilling method and a drilling apparatus of a hard brittle material in which a core drill is used for abrasive grinding of high accuracy and high durability.

Abstract: A balance adjustment method of an end mill for increasing the accuracy of the machined surface and also for lengthening the tool lifetime, in which mass unbalance between an end gash part of a primary cutting edge and an end gash part of a secondary cutting edge of the end mill having asymmetric cutting parts is balanced by decreasing an end gash angle, an end gash part, a clearance angle or a corner of tooth face of the secondary cutting edge.

Abstract: A linear motor comprising a center yoke made of a ferromagnetic material; outer yokes made of a ferromagnetic material, having permanent magnets, each having magnetic poles on the inner and outer surfaces thereof and fixed to the inner surface of the outer yokes, and disposed outside the center yoke with both ends thereof being magnetically coupled; and a movable member having coils wound on the outer circumference thereof and axially movably disposed in a gap between the center yoke and the outer yokes, in which recesses are provided on the opposing surfaces of the center yoke and the movable member, and a static-pressure gas bearing is formed by providing an air intake vent connecting to these recesses.

Abstract: An ultrasonic probe comprising an acoustic lens (20) having a concave lens surface (21) formed on one side of a lens body, and a piezoelectric transducer (23) disposed on the other side of the acoustic lens, ultrasonic waves generated by applying voltage to the piezoelectric transducer being focused through the lens surface to detect the reflected waves of the ultrasonic waves from a sample (26) by the piezoelectric transducer for obtaining information about the surface or interior of the sample. The lens surface (21) of the acoustic lens (20) is defined by an etch profile (15) formed by etching a substrate material (11) which makes up the lens body.

Abstract: An ultrasonic probe comprising an acoustic lens (20) having a concave lens surface (21) formed on one side of a lens body, and a piezoelectric transducer (23) disposed on the other side of the acoustic lens, ultrasonic waves generated by applying voltage to the piezoelectric transducer being focused through the lens surface to detect the reflected waves of the ultrasonic waves from a sample (26) by the piezoelectric transducer for obtaining information about the surface or interior of the sample. The lens surface (21) of the acoustic lens (20) is defined by an etch profile (15) formed by etching a substrate material (11) which makes up the lens body.