Abstract:
The present invention relates to an optical element fixing component having a hollow portion which includes an optical element. The optical element fixing component is made from a non-crystalline alloy, and a ratio of a linear expansion coefficient of the optical element fixing component toward a linear expansion coefficient of the optical element is 1.5 or less.
Abstract:
In an apparatus for affixing a tire component member, a capacity of a driving means for a traveling head is decreased, and start end positions of affixing the tire component member are aligned in a peripheral direction of a drum and a widthwise overlap amount between the tire component members is made constant as is expected, and also a cycle time is shortened, in which the apparatus comprises a traveling head 2 moving forward and rearward in an axial direction of a drum 1, a clamp means 9 pushing a front end portion of the tire component member 3 protruded ahead from the traveling head 2 onto the peripheral face of the drum, a cutting means 12 arranged at one end side of the drum apart from the clamp means 9, guide rolls 5 arranged on the traveling head 2 and specifying a widthwise position of the tire component member 3, and a chuck means pulling the tire component member 3 to the clamp means 9.
Abstract:
A method for producing a transfer drum simply, rapidly, at low cost and with high accuracy. A pair of end plates are coaxially arranged at a predetermined distance and in parallel with each other. A plurality of aluminum profiled members are bridged between the end plates and their end portions are fixedly securing to the end plates, respectively. A drum of a cylindrical shape as a whole is thereby produced, wherein arcuate outer surfaces of the profiled members are continuous with each other, through mutual abutting surfaces therebetween.
Abstract:
A piercing device (1) includes an outer tube (2) rotatably supported on one (X1) of shafts, which are eccentrically arranged relative to each other, so that it can be driven for rotation. Piercing needles (33) are arranged on the other shaft (X2) in the outer tube (2). The piercing needles (33) are spaced from each other in a circumferential direction, and projecting radially outwards, and being independently rotatable. Each piercing needle is adapted to be extended and retracted relative to an outer surface of the outer tube, via a through hole (5) formed in the outer tube (2). A needle restraining member (6) is rotatably supported on the other shaft (X2), for transmitting torque to the piercing needles (33) when driven for rotation. The piercing needles (33) are rotatably supported on the other shaft (X2) via the needle support members (36a-36f), respectively. The piercing needles (33) and further piercing needles (33) which are rotatable integrally with the piercing needles (33) are fixedly connected to the needle support members (36a-36f) in axial juxtaposition with each other. The disclosed structure protects the piercing needles from unreasonable force, and prevents undesirable enlargement of pinholes and deformation of the rubber sheet. Further, even when the piercing needles are advanced into the rubber sheet and retraced therefrom, enlargement of the pinholes formed in the rubber sheet can be prevented. Moreover, an increased number of piercing needles can be arranged in axial juxtaposition with each other.
Abstract:
A sheet of a rubber material is rolled by a pair of rotating rolling rollers 12 and 13 opposed to each other to form a sheet 1. Sheets 1 are superposed and laminated to form a structural component of a tire. At least the rolling roller 12 is provided with an annular protrusion 20 and annular grooves 21 for shaping the sheet 1. Fine ridges 12a (31a) are formed in the surfaces of the annular protrusion 20 and the annular grooves 21. When the rolling rollers 12 and 13 are rotated to form the sheet 1, furrows and fine grooves 2 for releasing air are formed simultaneously in the surface of the sheet 1. The sheet 1 provided with the furrows and the fine grooves can be formed by a reduced number of manufacturing steps, while the fine grooves with the same shape can be formed.
Abstract:
An automatic tool exchanging device for a machine tool, comprising a stopper block (5, 5') attached to a magazine supporting member (2) supporting a magazine (1) at the lower end thereof and capable of swinging to the front and rear, and pulled by an elastic member (8) having one end connected to the upper end of the magazine supporting member (2). Upon arrival of the magazine (1) at a standby position from a tool exchanging position, a stopper (4, 4', 11) is engaged with the stopper block (5, 5') to prevent vibration of the magazine (1). A desired tool among various tools stored in the turret magazine is selected automatically and automatically exchanged for a tool on the machine tool.
Abstract:
A method of manufacturing an optical component that is provided with an optical element, and an optical element holding component that holds an outer circumferential portion of the optical element includes: placing the optical element on an interior side of a metal die that molds the optical element holding component, and in which an incident side protective component that protects an optical surface on an incident side of the optical element is placed against this optical surface on the incident side, and placing an emission side protective component that protects an optical surface on an emission side of the optical element against this optical surface on the emission side; and filling the interior of the metal die with a molten metal material so that the optical element holding component which is formed from an amorphous alloy is injection molded integrally with the optical element.
Abstract:
A method of manufacturing an optical component that is provided with an optical element, and an optical element holding component that holds an outer circumferential portion of the optical element includes: placing the optical element on an interior side of a metal die that molds the optical element holding component, and in which an incident side protective component that protects an optical surface on an incident side of the optical element is placed against this optical surface on the incident side, and placing an emission side protective component that protects an optical surface on an emission side of the optical element against this optical surface on the emission side; and filling the interior of the metal die with a molten metal material so that the optical element holding component which is formed from an amorphous alloy is injection molded integrally with the optical element.
Abstract:
An inexpensive fluorescent object is provided which may be used, for example, as a test object for color adjustment of a fluorescent endoscope system. The fluorescent object generates fluorescence while minimizing the generation of ‘noise’ at undesired wavelengths, and is made using a plastic that substantially does not deteriorate upon exposure to U.V. and visible radiation. A method of producing the fluorescent object is disclosed, namely, a plastic powder (such as PTFE) and an inorganic fluorescent powder (such as Mn-doped ZnS) are blended so as to form a mixture of these components, and the mixture is then molded by applying pressure to the mixture. An important feature of the invention is that heat is not added during any phase in the production of the fluorescent object, thereby preventing the inorganic fluorescent powder from being denatured when producing the fluorescent object.
Abstract:
A tire component is fabricated by the steps of forming a narrow belt by arranging a plurality of cords and embedding the cords in a rubber layer, cutting the belt into strips of a predetermined length, and successively arranging and joining a necessary number of the strips such that edge parts of adjacent strips overlap each other with the outermost cord in the edge part of one of the adjacent strips overlying the outermost cord in the edge part of the other strip. The strips can be surely joined without requiring advanced techniques, without wasting materials and without increasing weight. Thus a desired annular tire component can be accurately formed in a desired circumference. The cords are arranged in each strip in a width equal to a length shorter than a length equal to an integral division of the predetermined circumference of a tire by a length corresponding to an increase in the diameter of the tire component. A tire component of a predetermined circumference can be accurately formed by increasing the diameter of an annular ply fabricated by successively joining an integral number of the strips such that the edge parts of the adjacent strips overlap each other with the outermost cord in the edge part of one of the adjacent strips superposed on the outermost cord in the edge part of the other strip. A pneumatic tire including the thus formed carcass ply thus fabricated has an improved quality.