Abstract: Provided is a metal-air battery and a method of using the same that make it possible to simplify replacement work while also sustaining high output effectively. The metal-air battery of the present invention comprises a cell unit provided with a plurality of metal-air battery cells in parallel, each metal-air battery cell being configured to include a metal electrode, an air electrode disposed facing the metal electrode, and a housing that supports the metal electrode and the air electrode. The metal-air battery also comprises handles for example that act as a first replacing means enabling the replacement of the entire cell unit. With this arrangement, it is possible to simplify replacement work while also sustaining high output effectively.

Abstract: Provided is a cylinder device capable of preventing rotation unevenness while reducing power consumption and achieving compactification in particular. The present invention is to provide a cylinder device including a cylinder body and a shaft member supported in the cylinder body, the cylinder body is provided with a rotation mechanism portion including a rotation chamber and configured to rotate the shaft member based on an action of a fluid, and rotation ports communicating with the rotation chamber are provided at a front end and a rear end of the rotation mechanism portion. Thus, it is possible to prevent rotation unevenness while reducing power consumption and achieving compactification.

Abstract: Provided is a metal-air battery and a method of using the same that make it possible to simplify replacement work while also sustaining high output effectively. The metal-air battery includes a cell unit provided with a plurality of metal-air battery cells in parallel, each metal-air battery cell being configured to include a metal electrode, an air electrode disposed facing the metal electrode, and a housing that supports the metal electrode and the air electrode. The metal-air battery also includes handles for example that act as a first replacing means enabling the replacement of the entire cell unit. With this arrangement, it is possible to simplify replacement work while also sustaining high output effectively.

Abstract: Provided is a cylinder device capable of preventing rotation unevenness while reducing power consumption and achieving compactification in particular. The present invention is to provide a cylinder device including a cylinder body and a shaft member supported in the cylinder body, the cylinder body being provided with a rotation port that communicates with an outer circumferential surface around the shaft member and rotates the shaft member based on a supply and discharge of a fluid. Thus, it is possible to prevent rotation unevenness while reducing power consumption and achieving compactification.

Abstract: Particularly, there is provided a liquid detection sensor in which a liquid contact area is formed integrally with a separator, and that improves detection accuracy with a small number of parts. A liquid detection sensor (1) according to the present invention includes a metal-air battery (2) formed by laminating a negative electrode sheet (3), a positive electrode sheet (5) and a separator (4) interposed between the negative electrode sheet (3) and the positive electrode sheet (5), and the separator (4) is formed wider than an area in which the positive electrode sheet (5) and the negative electrode sheet (3) overlap with the separator (4) interposed therebetween, and includes a liquid contact area (4?) exposed from at least one of the positive electrode sheet and the negative electrode sheet.

Abstract: Provided is a metal-air battery and a method of using the same that make it possible to obtain a high output while also promoting the discharge of product associated with power generation and achieve stable output over time.

Abstract: To obtain a golf club and a connecting member for a golf club shaft and a golf club head that can provide a flexibility in choice of reshafting to a user regardless of types of the golf club shaft and the golf club head and that can also provide excellent strength and/or appearance. A connecting member connects an inner-hosel-type golf club shaft and an over-hosel-type golf club head. The connecting member includes a hybrid structure combining different kinds of material.

Abstract: To obtain a golf club and a combining member of a golf club shaft and a golf club head that can provide a flexibility in choice of reshafting to a user regardless of types of the golf club shaft and the golf club head. A golf club includes an inner-hosel-type golf club shaft, an over-hosel-type golf club head, and a combining member that combines the inner-hosel-type golf club shaft with the over-hosel-type golf club head.

Abstract: A metal-air battery is comprised by a metal-air battery unit having a plurality of juxtaposed metal-air battery cells with a small number of components and a simple structure for injection of the electrolytic solution into each cell. Each metal-air battery cell has an air electrode, a metal electrode arranged to face the air electrode, and a casing configured to support the air electrode and the metal electrode. Each casing includes an air chamber and a liquid chamber. Each air chamber has an upper part opened to the outside. The casing has a liquid feeding port communicating with the liquid chamber for admitting an electrolytic solution when the metal-air battery unit is lowered into a container of electrolytic solution.

Abstract: In particular, an object is to provide a fluid cylinder allowing for accurate stroking while causing rotation with reduced power consumption and a compact configuration. The fluid cylinder of the present invention includes a cylinder body and a shaft member supported within the cylinder body and wherein the shaft member is capable of stroking in an axial direction while rotating by means of a fluid. A rotary driver that rotates the shaft member on the basis of a rotation pressure generated by the fluid and a stroke driver that causes the shaft member to stroke on the basis of a cylinder control pressure generated by the fluid are provided in separate areas within the cylinder body.

Abstract: To provide a composite molding and a method of manufacturing the same, capable of preventing insufficient filling of a rubber member and improving a product yield, the composite molding has a resin member and a rubber member molded to cover upper and lower faces of the resin member. A plurality of holes communicating with the resin member are provided in at least one of faces of the rubber member. The holes are loopholes of pins that support the resin member during molding of the rubber member while being spaced from a mold die.

Abstract: It is an object to provide a metal-air battery and a method for removing an oxide film that can appropriately remove an oxide film while reducing waste of power required for removing the oxide film. The metal-air battery of the present invention includes a battery main body portion in which a metal electrode and an air electrode are arranged so as to be opposed to each other through an electrolytic solution, a USB terminal to which an external load is connected, and a controller for electrically connecting the battery main body portion and the USB terminal, the controller includes a microcomputer for determining connection or disconnection of an external load to or from the USB terminal, and when the microcomputer confirms the connection of the external load, a current for removing an oxide film is made to flow through a circuit including the metal electrode, the air electrode, and an oxide film removing resistor.

Abstract: A check valve structure includes: a valve casing communicating with each of inflow and outflow paths for a fluid; and a valve element which is disposed in the valve casing and configured of an elastic material. The valve element has a thin portion, and a thick portion protruding from the substantial center of one surface of the thin portion. The valve casing has: a valve element support portion including an annular bottom portion capable of supporting an outer edge of a bottom portion of the thick portion, and a peripheral wall portion continuing to an outer peripheral edge of the annular bottom portion; and a valve seat portion including a valve element contact portion which is in contact with a vicinity of an outer peripheral edge portion on the other surface side of the thin portion, and a valve seat surface which can be in contact with the thin portion.