Abstract: An electric lawn mower includes a cutter blade, an electric motor disposed above the cutter blade, and a battery unit for driving the electric motor. The battery unit is positioned above the electric motor to thereby achieve weight balance of the lawn mower. This arrangement allows air to flow smoothly between the electric motor and the battery unit.

Abstract: A fastening device for a polishing paper cloth of a portable polishing machine. The device comprises an attaching portion which can be detachably attached to a base plate of the polishing machine and a fastening device main body for winding the polishing paper cloth thereon to engage therewith. Multiple concave grooves, which are continuous in the winding direction of the polishing paper cloth in parallel, and a cavity portion formed inside are provided. Therefore, by giving flexibility to the main body to allow it to be deformed in many directions, it is possible to prevent a reaction to the operator due to oscillation of the polishing machine generated during the polishing and to improve a discharging function for the polishing waste to the outside by allowing the polishing waste generated during the polishing to easily intrude in the concave grooves.

Abstract: A stretchable warp knitted fabric comprising warp knitting yarns, first weft in-laid yarns and second weft in-laid yarns, and stretchable warp in-laid yarns. The second weft in-laid yarns consist of a plurality of at least non-stretchable yarns, and said second weft in-laid yarns run sequentially and separately in the course direction on different wale regions of the same course with having an arbitrary length respectively, while crossing the first weft in-laid yarns between courses. Consequently, even when pulled in a longitudinal direction, because the separate second weft in-laid yarns influence each other independently, the fabric does not have a great amount of ruffling in a width direction thereof and thus the a flat surface is maintained wherein there is no narrowing in the middle of the longitudinal direction.

Abstract: The molding method for molded surface fastener for molding a flat substrate and a plurality of first engaging elements integrally and continously using the same molding material. According to the method, a cooling/transportation means for cooling and transporting a molded surface fastener at the same time when it is molded is driven and rotated in one direction and molten resin material is extruded continuously onto a cooling/transportation face through a resin extrusion path which extends in a width direction of an extrusion nozzle and which is open to said cooling/transportation face of said cooling/transportation means and opens in a transportation direction thereof. At this time, a plurality of the first engaging-element-molding openings spaced in the width direction of said resin extrusion path are opened and closed by means of at least a vertically vibrating member disposed on a front face of said extrusion nozzle in a resin transportation direction thereof.

Abstract: In an engine generator, a pair of wall plate members are opposed to each other at a distance. Accommodated between the wall plate members are an engine having a crankshaft perpendicular to the wall plate members; an outer-rotor type generator also serving as a flywheel and connected directly to the crankshaft; an intake system device disposed on one side of the engine in a plane perpendicular to an axis of the crankshaft; and an exhaust system device disposed on the other side of the engine in said plane. Thus, the engine generator can be accommodated in a limited space.

Abstract: In an electric lawn mower, a rechargeable battery and an electric motor activatable by the battery are mounted in a machine body section, and a cutter blade is provided within a cutter housing and rotatable via the electric motor to cut grass. Cover member collectively covers the battery and electric motor. The cover member is shaped to progressively slant upward in a front-to-rear direction of the machine body section, and the cover member has an opening formed in its lower front end portion and an air vent formed in its rear end portion to thereby permit ventilation from the opening to the air vent such that the battery and electric motor can be cooled by air flows.

Abstract: In an electric working machine, a scroll portion is provided at one of left and right sides of a machine body, and a relay member functioning as a power switch in which a power on/off key is removably inserted is provided at the other side of the machine body. The relay member is provided between a motor-driving battery and a control section so that the battery and control section can be electrically connected with each other by insertion, in the relay member, of the power on/off key and disconnected from each other by removal, from the relay member, of the power on/off key.

Abstract: An electric lawn mower includes a cutter blade, an electric motor disposed above the cutter blade, and a battery unit for driving the electric motor. The battery unit is positioned above the electric motor to thereby achieve weight balance of the lawn mower. This arrangement allows air to flow smoothly between the electric motor and the battery unit.

Abstract: A fastening device for a polishing paper cloth of a portable polishing machine. The device comprises an attaching portion which can be detachably attached to a base plate of the polishing machine and a fastening device main body for winding the polishing paper cloth thereon to engage therewith. Multiple concave grooves, which are continuous in the winding direction of the polishing paper cloth in parallel, and a cavity portion formed inside are provided. Therefore, by giving flexibility to the main body to allow it to be deformed in many directions, it is possible to prevent a reaction to the operator due to oscillation of the polishing machine generated during the polishing and to improve a discharging function for the polishing waste to the outside by allowing the polishing waste generated during the polishing to easily intrude in the concave grooves.

Abstract: A synthetic resin opening and closing press fastener comprises a front side flat plate portion and a rear side flat plate portion which are attached to the end edges of a flat plate shaped attached body. One end of these portions are connected by means of a connecting portion that is a positioning portion of the end edge of the attached body, and has a number of male engaging elements of a surface fastener on the rear face of the rear side flat plate portion. In order to attach this opening and closing press fastener to the attached body, the fastener attaching end edge of the attached body is inserted from an open end of the front and rear side flat plate portions of the press fastener. When the above end edge abuts against the connecting portion, both of the flat plate portions are connected to each other via the attached body by means of synthetic resin pin members having at least engaging heads at one end.

Abstract: Both sides of a fastener chain may be reinforced and an attachment object such as a bag or a case may be mounted in a stabilized condition. A reinforcement member, which is molded of thermoplastic resin, thermoplastic elastomer or synthetic rubber in the form of a turned-down U shape in its cross section and has an appropriate plasticity and flexibility, is bonded along both outer sides of a fastener chain with a thermal welding resin film. The reinforcement member has a mounting groove which enables a cloth of the attachment object such as the bag or the case to be mounted and further contains a concave groove for a sewing thread, provided in the surface thereof. The cloth of the attachment object is inserted into the mounting groove and sewed along the concave groove with a sewing thread. Consequently, the reinforcement member can be mounted simply in a stabilized condition and can ensure a long term use.

Abstract: The present invention provides a disposable diaper, which is easy to put on the wearer, and which is possible to be put on easily while the wearer is standing on both legs. The disposable diaper according to the present invention includes a diaper body having a hip portion and a belly portion, which are spread out with a crotch portion between them. The diaper further includes male members which are protrusively arranged from side portions of one of the hip portion and said belly portion in a face direction and female members, which are arranged on side portions of the other and in which the male members engage in a face direction of the side portions. The female members are provided with receiving portions in which the male members are inserted in a face direction of the side portions. Engaged surfaces perpendicular to the inserting direction of the male member are formed on the inner walls of the receiving portions and the male members are provided with engaging surfaces opposing to the engaged surfaces.

Abstract: A peripheral face of a cooling drum to be driven and rotated in one direction has a predetermined gap relative to an extruding die of an extruder. An extrusion nozzle which communicates with a resin flow path is provided at an end of the extruding die in the die wheel rotation direction, and has a plurality of engaging-element-molding openings spaced at equal pitches in a width direction thereof. Molten resin extruded from the extruding die onto the peripheral face of the cooling drum is cooled when passing through the resin flow path, and when it is extruded from the extrusion nozzle in half molten state, simultaneously an up/down vibrating means which vibrates vertically opens or closes the engaging-element-molding openings to mold engaging elements successively, each having a thickness in the molding direction increasing gradually as it goes downward.

Abstract: This invention provides various kinds of engaging devices made of thermoplastic resin material which has an excellent productivity and secures an easiness in handling upon engagement or disengagement and in which breaking of hook element at each end is prevented and the hook element is never pierced into the finger. More specifically, the invention provides an engaging device having a plurality of hook elements disposed in plural rows on a surface of a substrate so as to engage with an engaging portion of a mating member having a plurality of loop elements on a surface thereof. Projections risen substantially vertically from a surface of the substrate are formed integrally therewith so as to secure protection function and backup function.

Abstract: This invention provides a fixture for an abrasive cloth paper in which a surface fastener does not have to be bonded prior to fixing of the abrasive cloth paper onto the fixture and in which hook-shaped engaging elements are disposed accurately at portions directly related to polishing by an abrasive cloth paper fastening portion of the fixture with precedence. A fixture made of synthetic resin comprises a mounting portion which is engaged with/disengaged from a base plate of a sander and a fastening portion on which an abrasive cloth paper is wound and fastened. In the fastening portion, a plurality of surface fastener engaging element rows which are parallel to a direction of winding of the abrasive cloth paper are formed integrally so as to form a fastening surface. A hollow portion is formed in the fastening portion.

Abstract: The present invention provides a disposable diaper, which is easy to put on the wearer, and which is possible to be put on easily when the wearer is standing on both legs. The disposable diaper including a diaper body having a hip portion and a belly portion, which are spread out with a crotch portion between them. The disposable diaper includes engaging means, which are arranged to be attachable/detachable, on the both side portions of the hip portion and the belly portion. The engaging means have hook elements which are disposed on the hip portion and projecting toward the belly portion, engaging faces disposed on the hook elements and facing to the hip portion, hook elements which are disposed on the belly portion and projecting toward the hip portion and engaging faces disposed on the hook elements and which are facing to the belly portion.

Abstract: A molded surface fastener including a flat substrate and a plurality of first engaging elements molded of the same material integrally with each other. Each engaging element is composed of a stem portion standing from a surface of the flat substrate and an engaging head portion protruded from a tip of the stem portion at least in a side direction perpendicular to a molding direction. A thickness of each engaging element in a direction perpendicular to the protruding direction of the engaging head portion increases gradually from a top portion of the engaging head portion to a base end of the stem portion. Maximum lateral widths of front and rear end faces of the engaging head portion of each engaging element a viewed in the molding direction are different from each other.

Abstract: This invention provides an engaging member of a fastening device integrally molded of synthetic resin which enables sewing thereof to clothes easily and accurately, ensures ease and smoothness in an operation for opening the engaging member of the fastening device even if it is molded relatively thick, and prevents too much force being applied to a sewing yarn by an external force upon the opening operation thereby ensuring durability and contributes to reduction of production cost.