Abstract: Provided is a cleaning device having a compact structure. A recovery unit (17) is configured such that dust collection boxes (76, 77) are disposed with respect to a cleaning brush (6) and a metallic roller (7), respectively. A cleaning blade (9) is fixed to a blade holder (79) via a bolt (78). When the recovery unit (17) is incorporated in a frame unit, the recovery unit (17) is moved in a predetermined direction so as to be brought into contact with a positioning section (14Bbb) of a side plate 14B of the frame unit (11). When the recovery unit (17) is moved, a fixing bolt (85) is loosened so that a straight portion (86a) of a fixed washer (86) is aligned with the vertical direction, and then, the fixing bolt (85) is tightened so that the recovery unit is fixed.

Abstract: A flat belt includes a tension-resistant layer, in which a core cord is spirally wound, an upper holding rubber layer, a lower holding rubber layer, an upper rubber layer, and a lower rubber layer. The holding rubber layers and are laid on the upper and lower sides of the tension-resistant layer respectively, retaining the layer. The upper and lower rubber layers and are laid on the upper side of the upper holding rubber layer and the lower side of the lower holding rubber layer respectively. 150-300 parts by weight of ferrite for 100 parts by weight of rubber matrix are mixed in the upper rubber layer, which is on the outer peripheral side of the flat belt when the belt is wound on a guide wheel.

Abstract: A method includes steps of extruding rubber or synthetic resin mixed with short fibers from a sectionally annular mold opening, and molding a cylindrical body of rubber or synthetic resin with short fibers oriented in a predetermined direction. The mold opening has an expansion portion 9 whose diameter expands in an extrusion direction, and a flow passage width Wi of an inlet portion 6i of the mold opening, a flow passage width Wo of an outlet portion 6o, and radiuses Ri and Ro of the inlet portion 6i and the outlet portion 6o respectively that are coaxial with the mold opening satisfy a relation of Wo/Wi<Ro/Ri. The value of Ro/Ri is adjusted within a scope of 2?Ro/Ri?8 by changing the radius Ri of the inlet portion according to mechanical properties in the circumferential direction of the cylindrical body to be molded, so that orientation of the short fibers is adjusted.

Abstract: [Problem] In a clutch mechanism using magnetic force, the problem is to avoid early damage to the rubber layer in contact with a rotating member without impairing the power transmission interrupting function of the mechanism. [Solving Means] A flat belt includes a tension-resistant layer 2, in which a core cord 2a is spirally wound, an upper holding rubber layer 3, a lower holding rubber layer 4, an upper rubber layer 5, and a lower rubber layer 6. The holding rubber layers 3 and 4 are laid on the upper and lower sides of the tension-resistant layer 2 respectively, retaining the layer 2. The upper and lower rubber layers 5 and 6 are laid on the upper side of the upper holding rubber layer 3 and the lower side of the lower holding rubber layer 4 respectively. 150-300 parts by weight of ferrite for 100 parts by weight of rubber matrix are mixed in the upper rubber layer 5, which is on the outer peripheral side of the flat belt when the belt is wound on a guide wheel.

Abstract: A method and apparatus is provided for producing raw edge belts. Plural square-cut ring-shaped belts are suspended across a main spindle roller and a tension roller, and while the belts are made to run circularly, the belts are ground into V-section belts to produce raw edge belts. The ring-shaped belts are roughly ground on the main spindle roller section into belts of an almost V-form section by a rough grindstone having V-forms in its peripheral. The roughly-ground ring-shaped belts are thereafter subjected to finish polishing with a finish grindstone.

Abstract: This details a production method for a blade for electrophotographic devices, made of thermosetting type polyurethane, including the steps of mixing and stirring the liquid polyurethane prepolymer which is a raw material component for a thermosetting type polyurethane polymer and the liquid crosslinking agent, discharging the mixture thereof into a die having a concave cross section in a molding drum, heating it via an endless belt which is in contact with the outer peripheral face of the molding drum and runs with the rotation of the drum 20 to continuously mold a banded blade molding S having a prescribed width, and cutting the blade molding to a prescribed length after cooling it down.

Abstract: A conveying unit (1) capable of stopping at precise points in an assembly line or the like comprises a conveyor (10), a lift (20) and a support (30) as main components. The conveyor (10) is a double-belt type belt conveyor wherein synchro rubber belts (13) are set over drive pulleys (11) and plural driven pulleys (12) and the pulleys (11) are connected with each other with a shaft (14). The lift (20) is constructed of two sets of frames on which the elevation of the conveyer (10) can be varied through the use of a pair of air bags. The support (30) is conveying path in the desired fixing position.

Abstract: This disclosure relates to a belt grinding machine that can be used to grind rubber belts containing special fiber(s) without causing troubles due to wear or clogging of the grinding wheel. A belt driving mechanism including rolls and for carrying a belt over them, a grinding wheel including a rotary driving means and a reciprocating means, and a rotary dresser for dressing the surface of the grinding wheel are arranged in this order in a direction perpendicular to the axes of the rolls, grinding wheel and rotary dresser all set in parallel to each other.

Abstract: A vulcanizing method including a cylindrical vulcanizing drum for winding and molding unvulcanized rubber belt materials thereover, the vulcanizing drum being removably and rotatably supported on a transfer mechanism. A pair of endless pressurizing bands are arranged to oppose each other with the vulcanizing drum between, the pressurizing bands arcuately surrounding and pressing the corresponding portions of the circumferential surface of the vulcanizing drum. While the circumferential surface of the vulcanizing drum is heated inside, and the respective pressurizing bands are opposingly pressed against the vulcanizing drum, the respective pressurizing bands are synchronously rotated so as to turn the vulcanizing drum and continuously vulcanize the unvulcanized rubber belt molding on the drum.

Abstract: Vulcanizing apparatus including a sealable vulcanizing vessel having an access cover on the top thereof, and a mold to be inserted in the vulcanizing vessel. The length of a rubber sleeve provided to cover the unvulcanized rubber belt molding A formed over the external circumference of the mold is sized a little longer than the height of the mold so that both ends of the rubber sleeve when placed in covering position protrude slightly from both the top and bottom ends of the mold. A holding seat is provided in the lower part of the vulcanizing vessel, and a pressing seat corresponding to the holding seat is provided on the access cover via a cylinder unit so that the pressing seat can be extended and retracted as required. The inner structures of both the pressing seat and holding seat include cooling jackets.

Abstract: A vulcanizing apparatus including a cylindrical vulcanizing drum for winding and molding unvulcanized rubber belt materials thereover, the vulcanizing drum being removably and rotatably supported on a transfer mechanism. A pair of endless pressurizing bands are arranged to oppose each other with the vulcanizing drum between, the pressurizing bands arcuately surrounding and pressing the corresponding portions of the circumferential surface of the vulcanizing drum. While the circumferential surface of the vulcanizing drum is heated inside, and the respective pressurizing bands are opposingly pressed against the vulcanizing drum, the respective pressurizing bands are synchronously rotated so as to turn the vulcanizing drum and continuously vulcanize the unvulcanized rubber belt molding on the drum.

Abstract: A mold removing apparatus for removing a mold from a cylindrical molding sticking to the external circumferential surface of a mold, the mold being hollow, having center bores at the center of both the top and the bottom thereof, and having a plurality of small through holes in the circumferential wall thereof.

Abstract: At each of a plurality of points of embedment in a conveyor belt, a set of at least two detectable elements is embedded, and a control unit is arranged (a) to receive and process signals from an externally installed sensor, the signals having a varied intensity corresponding to the number of detectable elements in a given embedment point, (b) to average the intensities of a plurality of the signals for the given embedment point, and (c) to judge, on the basis of the average obtained in (b), the presence or absence of a breakage of detectable element or elements at the given embedment point. The abovementioned arrangement is able to judge whether one of the two detectable elements is broken, and the judgment is not affected by variation of the distance between detectable elements and the sensor. If breakage of a single detectable element of any set is identified, the affected element may be repaired during an outage of the conveyor.

Abstract: This disclosure relates to a method for slicing a cylindrical elastic body, for example, a slab or broad belt prior to being cut into belts or rings of a certain width, by a two-shaft system, and its apparatus. The apparatus includes a) a drive shaft, of which the top end thereof can be released from its support, of which the root end thereof is connected to its drive unit, the drive shaft having a radially projecting part at the root end; b) a freely rotatable shaft extending in parallel with and at a constant distance from the drive shaft in a horizontal plane, of which the top end can be released from it support and can be tilted in vertical direction, and c) a cutting unit which has a cutter positioned perpendicular to the axial direction of the drive shaft, and which can move towards the drive shaft and can travel in the axial direction of the drive shaft.

Abstract: This disclosure relates to a counter for elastic rings, comprising a screw having a spiral groove which is slightly wider than the width of an elastic ring and is slightly deeper than the thickness of the elastic ring. The screw has an open discharge end, and a plurality of sorting rollers are loosely mounted in series on a support shaft located above and parallel to the screw and are independently capable of rotation and vertical movement. The sorting rollers contact a spiral ridge of the screw, and are arranged such that while the screw is rotated and the elastic rings are fed to the feed end thereof, the elastic rings are loosely moved into the spiral groove of the screw by the sorting rollers, and then sequentially delivered from the discharge end of the screw to a counting means.

Abstract: A packing device for transporting a long conveyor belt, and a conveyor belt wound over and across a pair of components of the packing device. The packing device has a pair of bobbins each comprising a take-up drum with radially extending discs fixed to both the ends thereof, and a long conveyor belt is wound over the respective bobbins with approximately the same turns on each bobbin. An opening for a shaft for rotation is provided in the center of each of the bobbins, and outwardly-directed ring-shaped flanges are provided around the circumference of each opening and in the periphery of each disc, respectively. The top ends of the ring-shaped flanges around the opening and in the periphery are bent towards each other, forming L-shaped portions in section.

Abstract: This disclosure relates to a mold ejecting apparatus for ejecting an inner mold from a cylindrical molding, e.g. a cylindrical rubber molding, sticking to the outer circumference of the inner mold, or for ejecting the cylindrical rubber molding from the inner mold. A plurality of small holes are formed through the circumferential wall of the inner mold, and a pressurized fluid feed line is connected to an opening in one end face of the inner mold to introduce a pressurized fluid into the hollow interior of the inner mold. A plurality of matching members are movable to contact or come close to the outer circumference of the inner mold and match with an end face of the molding, the matching members being movable towards and away from the outer circumference of the inner mold. A pressing apparatus is provided for moving the molding relative to the matching members and the inner mold and separating them.

Abstract: A molding machine for rubber belt production that is used in the production of rubber belts mainly for power transmission, to wind canvas, cords, rubber sheet, etc. around a mold. In the molding machine, a plurality of supporting machines each capable of supporting a mold disconnectably and rotatably around the central axis of the mold are mounted on a horizontally rotatable rotary table at a fixed radial distance from the center of rotation of the table. Each supporting machine is arranged to be capable of tilting a mold between a position wherein the central axis of the mold is lateral and a position wherein the central axis is vertical. This molding machine is capable of executing molding on one mold supported by one supporting machine while exchanging a mold of another supporting machine of which molding is completed with a new mold.

Abstract: A mold for injection molding including a cylindrical outer mold and a columnar inner mold. The inner mold is provided, on its external circumferential surface, with a large number of tooth-shaped grooves extending in the axial direction thereof, and it is placed inside the outer mold to define an annular cavity between the external circumferential surface of the inner mold and the internal circumferential surface of the outer mold. The outer mold is provided with a plurality of runners extending axially near the internal circumferential surface. The runners are arranged at regular annular intervals along the circumference of the outer mold. Furthermore, slit-shaped gates are formed along the full length of the runners, the gates opening into the internal circumferential surface of the outer mold, in such a way that the inflow of molten molding material flowing from each runner into the cavity is gradually reduced along the runner from the upstream side towards the downstream end.

Abstract: A thermal transfer machine comprising a freely rotatable belt attachment roller onto which an endless belt can be removably attached with the surface to be imprinted facing outwardly, a freely rotatable thermal roller placed so as to be movable toward and away from said belt attachment roller, a pair of support arms placed parallel to each other across an open space so that said thermal roller is positioned between them, and a marking paper support which has securing fixtures for stretching the marking paper across the space between the support arms and which is capable of moving in a reciprocating motion in the front-to-back direction of the thermal roller.