Abstract: An autonomous movement device includes a sensor to detect a surrounding object, driven wheels, and a processor. The processor acquires teaching control data, generates route data of a surrounding environment based on a point cloud detected by the sensor while controlling the driven wheels in accordance with the acquired teaching control data, and memorizes a movement path along which the autonomous movement device moves in the generated route data.

Abstract: An autonomous movement device includes driven wheels, a storage, and a processor. The processor: causes taught memorized data to be memorized in the storage; based on the memorized data, controls the driven wheels to cause the autonomous movement device to autonomously travel; at a hold point, the hold point being a point at which autonomous travel of the autonomous movement device is suspended, controls the driven wheels to cause the autonomous movement device to travel in a travel mode other than the autonomous travel; and, when the autonomous movement device reaches near the hold point in a travel mode other than the autonomous travel, causes the suspended autonomous travel to be resumed.

Abstract: A reciprocating engine is so arranged that, in an initial period of an expansion stroke, a high-pressure combustion gas above a piston is introduced via gas passage holes provided in an upper portion of a cylinder inner surface on a thrust side into a gas chamber defined by the cylinder inner surface and a top ring, a second ring, and a second land of the piston, so as to support the piston from the thrust side by the introduced high-pressure combustion gas. A half ring is inserted in the gas chamber in a state of being placed on the second land from the thrust side and so as to be movable up and down with clearances above and below, whereby as the piston reciprocates, the half ring moves up and down an amount corresponding to the size of the clearances, thereby continually cleaning the inside of the gas chamber.

Abstract: A reciprocating engine 1 is so arranged that, in an initial period of an expansion stroke, a high-pressure combustion gas 12 above a piston 2 is introduced via gas passage holes 23 provided in an upper portion 22 of a cylinder inner surface 8 on a thrust side 10 into a gas chamber 4 formed by being encompassed by the cylinder inner surface 8 and a top ring 5, a second ring 6, and a second land 7 of the piston 2, so as to support the piston 2 from the thrust side 10 by the introduced high-pressure combustion gas 12. A half ring 13 is inserted in the gas chamber 4 in a state of being placed on the second land 7 from the thrust side 10 and so as to be movable up and down with clearances 20 above and below, whereby as the piston 2 reciprocates, the half ring 13 moves up and down an amount corresponding to the size of the clearances 20, thereby continually cleaning the inside of the gas chamber 4.

Abstract: A reciprocating engine 1 is so arranged that, in an initial period of an expansion stroke, a high-pressure combustion gas 12 above a piston 2 is introduced via gas passage holes 23 provided in an upper portion 22 of a cylinder inner surface 8 on a thrust side 10 into a gas chamber 4 formed by being encompassed by the cylinder inner surface 8 and a top ring 5, a second ring 6, and a second land 7 of the piston 2, so as to support the piston 2 from the thrust side 10 by the introduced high-pressure combustion gas 12. A half ring 13 is inserted in the gas chamber 4 in a state of being placed on the second land 7 from the thrust side 10 and so as to be movable up and down with clearances 20 above and below, whereby as the piston 2 reciprocates, the half ring 13 moves up and down an amount corresponding to the size of the clearances 20, thereby continually cleaning the inside of the gas chamber 4.

Abstract: A piston 2 includes a piston upper body 8 made up of a crown portion 3 for receiving combustion pressure and a land portion 7 having piston ring grooves 4, 5, and 6, as well as a skirt portion 9 formed on the lower side of the piston upper body 8, and a pin boss portion 11 for supporting a piston pin 10. The land portion 7 also includes an outer peripheral surface 16 of the aforementioned piston upper body 8. The land portion 7 is referred to as the outer peripheral surface 16 of the piston upper body 8. In the piston 2, reference numeral 12 denotes a thrust side, and reference numeral 13 denotes an anti-thrust side. The piston 2 is formed such that the piston upper body 8 is off-centered toward the anti-thrust side 13 with respect to a center line 14 of the piston 2.

Abstract: A reciprocating engine 1 includes an annular top ring 5 serving as a first piston ring disposed adjacent to a top surface (head end surface) 4 of a piston 3 defining a combustion chamber 2; an annular second ring 6 serving as a second piston ring disposed with the top ring 5 interposed between the annular second ring 6 and the top surface 4; an annular gas chamber 7 defined by the top ring 5 and the second ring 6; and a plurality of communicating passages 8 for allowing the annular gas chamber 7 and the combustion chamber 2 to communicate with each other. The top ring 5 and the second ring 6 are respectively inclined with respect to an X direction in which the piston 3 reciprocates, so as to be located further away from each other on a thrust side 9 than on an anti-thrust side 10.

Abstract: An apparatus for working a glass plate includes: a transporting device for bending a glass plate in a concave shape in a cross-sectional view in a transporting direction and transporting the glass plate from a cutting section to a bend-breaking section; a cutting device for forming cut lines on the glass plate in the cutting section; and a bend-breaking device for bend-breaking the glass plate in the bend-breaking section.

Abstract: A piston 2 includes a piston upper body 8 made up of a crown portion 3 for receiving combustion pressure and a land portion 7 having piston ring grooves 4, 5, and 6, as well as a skirt portion 9 formed on the lower side of the piston upper body 8, and a pin boss portion 11 for supporting a piston pin 10. The land portion 7 also includes an outer peripheral surface 16 of the aforementioned piston upper body 8. The land portion 7 is referred to as the outer peripheral surface 16 of the piston upper body 8. In the piston 2, reference numeral 12 denotes a thrust side, and reference numeral 13 denotes an anti-thrust side. The piston 2 is formed such that the piston upper body 8 is off-centered toward the anti-thrust side 13 with respect to a center line 14 of the piston 2.

Abstract: A reciprocating engine 1 includes an annular top ring 5 serving as a first piston ring disposed adjacent to a top surface (head end surface) 4 of a piston 3 defining a combustion chamber 2; an annular second ring 6 serving as a second piston ring disposed with the top ring 5 interposed between the annular second ring 6 and the top surface 4; an annular gas chamber 7 defined by the top ring 5 and the second ring 6; and a plurality of communicating passages 8 for allowing the annular gas chamber 7 and the combustion chamber 2 to communicate with each other. The top ring 5 and the second ring 6 are respectively inclined with respect to an X direction in which the piston 3 reciprocates, so as to be located further away from each other on a thrust side 9 than on an anti-thrust side 10.

Abstract: A reciprocating engine comprises: a piston ring; a piston ring which defines an annular gas chamber in cooperation with the piston ring and which is adjacent to the piston ring such that a pressure-receiving area of a side surface of a piston in the annular gas chamber becomes greater on a thrust side than on a counter-thrust side of the piston; and gas passages for allowing the annular gas chamber to communicate with the combustion chamber.

Abstract: A reciprocating engine comprises: a piston ring; a piston ring which defines an annular gas chamber in cooperation with the piston ring and which is adjacent to the piston ring such that a pressure-receiving area of a side surface of a piston in the annular gas chamber becomes greater on a thrust side than on a counter-thrust side of the piston; and gas passages for allowing the annular gas chamber to communicate with the combustion chamber.

Abstract: A reciprocating engine (1) includes a cylinder (2); a piston (3) reciprocating in the cylinder (2) in a direction X; a connecting rod (5) rotatably coupled at its small end portion (4) to the piston (3) through a piston pin (4a); ring grooves (7, 8) disposed adjacent to each other in the direction X and formed in a peripheral side surface (6) of the piston (3); piston rings (9, 10) respectively fitted in the ring grooves (7, 8); partitioning means (14) for partitioning an annular space (11) between the piston rings (9, 10) into a thrust side semiannular space (12) and an anti-thrust side semiannular space (13); and communicating means (16) for allowing the space (12) to communicate with a combustion chamber (15) where a fuel-air mixture is burned.

Abstract: An apparatus for working a glass plate includes: a transporting device for bending a glass plate in a concave shape in a cross-sectional view in a transporting direction and transporting the glass plate from a cutting section to a bend-breaking section; a cutting device for forming cut lines on the glass plate in the cutting section; and a bend-breaking device for bend-breaking the glass plate in the bend-breaking section.

Abstract: An apparatus for working a glass plate includes: a transporting device for bending a glass plate in a concave shape in a cross-sectional view in a transporting direction and transporting the glass plate from a cutting section to a bend-breaking section; a cutting device for forming cut lines on the glass plate in the cutting section; and a bend-breaking device for bend-breaking the glass plate in the bend-breaking section.

Abstract: A machine for bend-breaking a glass plate 1 comprises: an endless belt 3 on which the glass plate 2 is placed; a supporting member 4 for supporting the endless belt 3; a glass plate receiving device 7 including a glass plate receiving surface 6 for receiving the glass plate 2 from a lower surface of the glass plate 2 by means of the endless belt 3; a moving device 8 for moving the glass plate receiving surface 6 of the glass plate receiving device 7; a press-breaking device 9 including a pressing surface 87 for press-breaking the glass plate 2; a moving device 10 for moving the pressing surface 87 of the press-breaking device 9; and a carrying-in and carrying-out means 11 for carrying the glass plate 2 to be subjected to bend-breaking in and for carrying the glass plate 2 subjected to bend-breaking out.

Abstract: A glass-plate working apparatus (A) includes a base (2) on which a glass plate (1) is placed; Y-direction movable bases (3) and (4) which are supported by the base (2) movably in a Y-direction perpendicular to an X-direction; a Y-direction moving device (5) for moving the movable bases (3) and (4) in the Y-direction; a frame (8) which is supported by the Y-direction movable bases (3) and (4) via scuffing preventing devices (6) and (7); an X-direction movable base (9) which is supported by the frame (8) movably in the X-direction; an X-direction moving device (10) for moving the X-direction movable base (9) in the X-direction; and a working head (12) mounted on the X-direction movable base (9) so as to form a cut line (11) for bend-breaking on the glass plate (1).

Abstract: A glass-plate working apparatus 1 includes: a supporting device 7 for supporting a glass plate 6 from a glass plate carrying-in section 2; a main cutter head device 9 for forming a main cut line 8 for bend-breaking on the glass plate 6 supported by the supporting device 7; a maincutter-head moving device 10 for relatively moving the main cutter head device 9; bend-breaking head devices 13 and 14 for forming edge cut lines 11 for bend-breaking on the glass plate 6 and for pressing the glass plate 6 to bend-break the glass plate 6; and bend-breaking head moving devices 15 and 16 for moving the bend-breaking head devices 13 and 14.

Abstract: A glass plate cutting device 1 with a bridge frame 4 supported at its opposite ends 5 and 6 so as to be movable in a Y direction. The bridge frame 4 has an X direction linearly moving unit 3 for moving a cutter head 2 linearly in the X direction. Ball screw nuts 7 and 8 are attached rotatably to the corresponding ends 5 and 6 of the bridge frame 4. Ball screws 9 and 10 extend in the Y direction and are screwed in the corresponding nuts 7 and 8. Y direction linearly moving units 11 synchronously rotate the corresponding nuts 7 and 8 to move the bridge frame 4 in the Y direction. A further ball screw 12 extending in the X direction is provided on the bridge frame 4. A further ball screw 12 is screwed in the further ball screw nut 13 attached to an X direction linearly moving unit 3, whereby the further ball screw 13 is rotated by the X direction linearly moving unit 3 to move the cutter head 2 linearly in the X direction.

Abstract: Apparatus is provided for cutting a plate-like member, having a cutter head and a bridge frame for supporting the cutter head movably in the X-direction. The bridge frame is supported at opposite side ends thereof and is movable in the Y-direction on a base. A moving device is provided for linearly moving the cutter head in the X-direction, and a moving arrangement is provided for linearly moving the bridge frame in the Y-direction. The moving arrangement includes a linear motor disposed on the one end of the bridge frame and a second linear motor disposed on the other end of the bridge frame. A control device is provided for operating said first and second linear motors synchronously with respect to each other.