摘要:
A golf club head comprises an outer titanium club-head shell, and a titanium sole portion integrally coupled to the outer club-head shell. A weight fitting hole is bored in the sole portion, and a plurality of cutouts are formed in the inner peripheral edge portion of the fitting hole. A weight made of metal having a specific gravity higher than that of titanium is inserted into the fitting hole, and the weight is fixed to the sole portion after press-deformed so that its outer peripheral edges are press-fitted into the respective cutouts. A method for producing a golf club head comprises the steps of molding the outer club-head shell from titanium, molding the sole portion having the weight fitting hole from titanium, forming the plurality of cutouts in the inner peripheral edge portion of the fitting hole of the sole portion, inserting the weight made of metal having a specific gravity higher than that of titanium into the fitting hole, fixing the weight to the sole portion by press-deforming the weight in such a way as to press-fit the outer peripheral edges of the weight into the respective cutouts, and coupling the outer club-head shell and the sole portion integrally by welding.
摘要:
A driving control apparatus of a vibration motor controls the speed of the vibration motor by simultaneously changing the frequency and the amplitude of signals applied thereto, and upon the speed control, a contribution to a rate of change of speed by a change in the driving frequency and a contribution to the rate of change of speed by a change in the amplitude are varied based on a difference between a target speed.
摘要:
A device for discriminating an attribute of an image in a block area contained in a document image includes a device for performing a Fourier transformation based on image data in the block area and for determining a spatial frequency spectrum relating to the image in the block area; and a neural network for outputting a discrimination result as to whether or not the attribute of the image in the block area is a halftone dot image based on the spatial frequency spectrum output from the Fourier transform device.
摘要:
On a ceramic substrate, spiral-type inductors of a single layer wiring of a metal thin film are provided and respectively connected to a wiring pattern formed on another face of the substrate via through holes. A semiconductor chip is flip-chip mounted on the substrate in a face-down manner. On the face of the semiconductor chip, capacitors composed of a highly dielectric material, resistors formed by an ion implantation method or a thin-film forming method, and FETs are provided, respectively. Interconnection between the substrate and an external circuit board is achieved employing terminals formed at end faces of the substrate. The terminals have a concave shape with respect to the end face of the substrate. Thus, there is no need to use a package, and miniaturization and reduction in cost of a high-performance hybrid IC is achieved.
摘要:
A data transmission unit for transmitting data stored in a movable terminal unit to an upper unit when the movable terminal unit is connected to the data transmission unit, includes a coupler for directly coupling the unit to a front or a rear stage data transmission unit without using a connecting cable. The coupler includes data pins for passing data from the movable terminal unit or the front stage data transmission unit to the rear stage data transmission unit or the upper unit, saving the space between adjacent units.
摘要:
First and second guide means are provided to both a movable member which moves together with a vibration member, which is in press contact with a rail-shaped stator, and the rail-shaped stator. The first and second guide means have different functions: the first guide means restricts the degree of freedom of the movable member, and the second guide means receives a total compression counterforce of the vibration member.
摘要:
The printing apparatus or the sheet feeding apparatus disclosed here which employs vibration driven actuators as driving sources has a circuit for detecting the characteristics of the actuator during preparatory operation performed previous to the regular operation. Information detected by said circuit is used to control the actuators during the regular operation. As a result, a printing apparatus or a sheet feeding apparatus capable of reducing wasteful or unnecessary operation can be obtained.
摘要:
Disclosed herein are a poly(arylene thioether) block copolymer alternately comprising (A) at least one poly(arylene thioether-ketone) block having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other and (B) at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) block (B) to the total amount of the poly(arylene thioether-ketone) block (A) being within a range of 0.05-5 by weight, (b) the average polymerization degree of the poly(arylene thioether) block (B) being at least 10, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process the poly(arylene thioether) block copolymer. The invention also provides a stabilized poly(arylene thioether) block copolymer containing a basic compound either alone or in combination with an antioxidant.