Abstract: A method for producing a power storage device includes placing a lid assembly that includes a lid and a terminal member integrated therewith via a resin member to close an opening portion of a case body with the lid, and laser-welding the opening portion of the case body and the peripheral portion of the lid over an entire circumference. In placing the lid assembly, a peripheral high-level region, in which a peripheral outer surface of the peripheral portion of the lid is located on the outer side relative to an opening end surface of the opening portion of the case body is provided in proximate long-side opening portions, close of the opening portion and proximate long-side peripheral portions of the peripheral portion.

Abstract: A method for producing a power storage device includes forming a lid, forming a lid assembly, closing, and welding. In forming a lid, there is included forming, by forging, a protruding portion between a peripheral portion and an insertion-hole surrounding portion of the lid to block scattered light of a laser beam from being irradiated to a resin member, with a distance D from an end surface of the peripheral portion to a side surface of the protruding portion falling within 0.5t (D?0.5t) relative to a thickness t of the lid.

Abstract: A method for producing a power storage device includes closing an opening portion of a case body with a lid of a lid assembly, and laser-welding the opening portion of the case body and a peripheral portion of the lid over their entire circumference. A resin member has an outer surface including a scattered light-reached surface to which scattered light of a laser beam directly reaches, at least a part of the scattered light-reached surface including a smoothed region having a surface roughness of 0.6 ?m or less.

Abstract: A sealed power storage device includes a device case having a metal wall portion formed with liquid inlet, and a sealing member sealing the liquid inlet to cover the liquid inlet from above an outer surface of the metal wall portion. The sealing member is a resin sealing member made of resin. The outer surface of the metal wall portion includes an annular seal surface surrounding an opening edge of the liquid inlet. The resin sealing member includes an annular joined portion hermetically joined to the annular seal surface.

Abstract: In a sealed power storage device, a device case includes a resin case body with an opening and a resin lid closing the opening. The resin lid is made of electrical insulation resin. A metal terminal member is extended from inside to outside of the device case, penetrating through the resin lid. The resin lid is hermetically molded together with the metal terminal member so that the resin lid is directly joined to the outer peripheral surface of the metal terminal member without interposing another member between the resin lid and the metal terminal member.

Abstract: In a sealed battery, a battery case includes a metal wall portion formed with a gas vent hole. The metal wall portion includes an annular seal surface surrounding an opening edge of the gas vent hole. A resin safety valve member closing the gas vent hole includes an annular joined portion hermetically joined to the annular seal surface and an inside portion located more inside than the annular joined portion in a radial direction. The inside portion breaks when the internal pressure of the battery case reaches a valve opening pressure, thereby opening the resin safety valve member.

Abstract: In a sealed battery, a battery case includes a metal wall portion formed with a gas vent hole. Of an outer surface of the metal wall portion, a hole-surrounding annular surface surrounding an opening edge of the gas vent hole includes an annular seal surface surrounding the opening edge of the gas vent hole. A resin safety valve member covering and closing the the gas vent hole includes an annular joined portion hermetically joined to the annular seal surface. The annular joined portion of the resin safety valve breaks when the internal pressure of the battery case reaches a valve opening pressure, thereby opening the resin safety valve member.

Abstract: A device for cooling a reflecting mirror for reflecting a laser beam is disclosed. A porous member, which permits flow of a cooling fluid through it and has a high thermal conductivity, is held in contact with the reflecting mirror to be cooled. The porous member has a bore coincident with the center of the reflecting surface of the reflecting mirror, at which the laser beam is reflected, and is open on the side opposite the reflecting mirror. Cooling fluid is permitted to flow into the porous member through the bore thereof to improve the heat exchange between the cooling fluid and reflecting mirror, thus improving the cooling capacity and also permitting effective cooling of the reflecting portion of the reflecting mirror, at which the laser beam is reflected.

Abstract: A turntable is rotatably provided on the main body of a label sticking apparatus, and a plurality of container support tables are provided along the periphery of the turntable. Containers such as bottles and cans are transported along a predetermined path as riding on the container support tables. A label application device for applying labels to these containers is formed as a unit block which may be detachably mounted on the main body. When mounted, the label application device receives driving force from the driving source for rotating the turntable. The label application device is provided with a lock mechanism, which enables to carry out mounting and dismounting operations with ease and security.

Abstract: A positioning device for setting a bottle at a predetermined angular position, which device is provided with a bottle supporting mechanism to support the upper end portion of the bottle and a mechanism which imparts relative rotary motion to the bottle and an engaging member or members being brought into engagement with the positioning spot of the bottle. When the engaging member is turned, the bottle is rotated to a predetermined angular position together with the engaging member after the spot is brought into engagement with the engaging member. In the case where the bottle is turned, the bottle is not rotated after the spot is brought into engagement with the fixed engaging member.

Abstract: A label feeding apparatus for removing labels with the use of suction one by one from a label magazine in which a quantity of labels are stored and sending it to a label sticking device where labels are stuck to containers such as bottles and cans. The label feeding apparatus comprises a pivotally supported guide lever on which a slide member is slidably mounted. The slide member is provided with a label holding mechanism including suction members. The cooperation between the pivotal motion of the guide lever and the reciprocating motion of the slide member defines a particular closed path of the movement of the label holding mechanism. During one cycle of this closed path, one label is removed from the label magazine and fed to the label sticking device.