Abstract: According to one implementation, a drill includes the first cutting edges, the second cutting edges and a deflection reducer. The first cutting edges drill a prepared hole to a workpiece. The first cutting edges are formed in a tip side of the drill. The first point angle and each first relief angle of the first cutting edges continuously or intermittently decrease from the tip side toward a rear end side of the drill. The second cutting edges finish the prepared hole. The second cutting edges are formed at positions away in the rear end side from the first cutting edges. The second cutting edges have the second relief angles at a maximum diameter position. The deflection reducer reduces deflection of the second cutting edges by being inserted into the prepared hole. The deflection reducer is formed between the first cutting edges and the second cutting edges.

Abstract: A collet bush includes a tapered cylindrical outer surface, a cylindrical inner surface and a flow path. The collet bush is to be inserted into a concentric collet that is attached to a handheld tool driving device in order to position the tool driving device to a workpiece. The tool driving device holds, rotates and feeds a tool. The tool driving device has a function to suck chips. The outer surface is for expanding the concentric collet. The inner surface forms a through hole for slidably fitting the tool. The flow path is for taking in air used for sucking the chips inside the collet bush. The tool driving device includes the above-mentioned collet bush and the concentric collet.

Abstract: A battery assembly includes a battery body, a plurality of battery cells stacked in the battery body in a stacking direction, a pair of end components, including insulating material, each disposed at an end of the battery body in the stacking direction, and a pair of side plates, including metal, disposed on opposite sides of the battery cells and connecting to the end components. A first end component of the pair of end components includes a fixing portion, which accommodates a fixing body, to install the battery assembly to an installing body. The fixing portion and the side plates are not connected electrically to each other.

Abstract: Provided is a battery pack capable of preventing a damage to the insulation layer on the bottom face of each of battery cells and improving the cooling performance for the battery cells as compared with the conventional configuration. A battery pack includes a plurality of battery cells 10, a plurality of cell holders 20, a plurality of plates 30, an insulation layer 40 on the entire bottom face 10b of each battery cell 10, a heat-transfer sheet 50, and a cooler 60 to cool the battery cells 10 via the heat-transfer sheet 50. The lower end 30b of each plate 30 protrudes downward from the lower face 40b of each insulation layer 40. The cell holder 20 has supports that support the side faces of the battery cell 10 and an opening 22 that exposes the entire lower face 40b of the insulation layer 40 to the heat-transfer sheet 50.

Abstract: First guide supports and second guide supports are integrally formed on an external base material to which external terminals are fixed. Guide protrusions and guide concave parts, which extend vertically, are formed on the housing of a switch device. When each guide protrusion and its corresponding guide concave part are guided by a first guide support and a second guide support during the attachment of the switch device to the external base material, the switch device can be easily attached.

Abstract: A battery pack includes a case which includes at least one battery module having a plurality of battery cells, a bottom plate where the battery module is placed, side plates and erected around the bottom plate, and a top plate provided in the upper ends of the side plates and to face the bottom plate, and a bracket provided in the side plates and to fix the case to a vehicle loading portion, and a partitioning member which is provided in the case and transfers a force added to the top plate to the bracket.

Abstract: A spring piece is formed integrally as part of a drive arm that presses an operational body. The spring piece is disposed between a pressing part at which the drive arm presses the operational body and a linkage part that acts a swinging fulcrum. A contact part between the spring piece and a case is positioned closer to the linkage part than the bend bottom end is. When the drive arm swings from an initial orientation to a completely swung orientation, the spring piece can generate an elastic return force. The elastic return force does not largely increase even when the drive arm swings.

Abstract: A spring piece is formed integrally as part of a drive arm that presses an operational body. The spring piece is disposed between a pressing part at which the drive arm presses the operational body and a linkage part that acts a swinging fulcrum. A contact part between the spring piece and a case is positioned closer to the linkage part than the bend bottom end is. When the drive arm swings from an initial orientation to a completely swung orientation, the spring piece can generate an elastic return force. The elastic return force does not largely increase even when the drive arm swings.

Abstract: First guide supports and second guide supports are integrally formed on an external base material to which external terminals are fixed. Guide protrusions and guide concave parts, which extend vertically, are formed on the housing of a switch device. When each guide protrusion and its corresponding guide concave part are guided by a first guide support and a second guide support during the attachment of the switch device to the external base material, the switch device can be easily attached.

Abstract: A battery pack includes a case which includes at least one battery module having a plurality of battery cells, a bottom plate where the battery module is placed, side plates and erected around the bottom plate, and a top plate provided in the upper ends of the side plates and to face the bottom plate, and a bracket provided in the side plates and to fix the case to a vehicle loading portion, and a partitioning member which is provided in the case and transfers a force added to the top plate to the bracket.

Abstract: An upper chamber and a lower chamber are provided in a housing of an electric storage device for vehicle deployment by a middle base plate. The lower chamber is sealed with respect to the upper chamber by the middle base plate. A battery module is disposed in the lower chamber. A control device, such as a cell controller, and electrical parts, such as a junction box and a service disconnect switch, are mounted in the upper chamber. Strong and weak current system wiring that connect the battery module and the electrical parts respectively penetrate strong and weak current system openings of the middle base plate, and are routed to the upper chamber. The openings, which are penetrated by the strong and the weak current system wiring, are each provided with a sealing member, and thus the lower chamber is sealed with respect to the upper chamber.

Abstract: An electric storage module includes: a plurality of electric storage units; a casing that houses the plurality of electric storage units, and includes a pair of resin side plates that hold and support at least the plurality of electric storage units from opposite sides; a plurality of conductive members for electrically connecting the plurality of electric storage units; a metal cover member that covers the casing on an outside of each of the side plates; and a peripheral wall protruding from each of the side plates so as to surround each of the plurality of conductive members, wherein: a height of the peripheral wall from each of the side plates is higher than a height of the conductive members from each of the side plates, and smaller than a distance from each of the side plates to the cover member.

Abstract: An electricity storage device comprises a plurality of electricity storage cells, a casing which stores the electricity storage cells, a plurality of conductive members for electrically connecting the electricity storage cells together, a control device which controls the electricity storage cells, and voltage detection lines for electrically connecting the electricity storage cells with the control device. The casing includes at least a pair of side plates made of resin.

Abstract: An upper chamber and a lower chamber are provided in a housing of an electric storage device for vehicle deployment by a middle base plate. The lower chamber is sealed with respect to the upper chamber by the middle base plate. A battery module is disposed in the lower chamber. A control device, such as a cell controller, and electrical parts, such as a junction box and a service disconnect switch, are mounted in the upper chamber. Strong and weak current system wiring that connect the battery module and the electrical parts respectively penetrate strong and weak current system openings of the middle base plate, and are routed to the upper chamber. The openings, which are penetrated by the strong and the weak current system wiring, are each provided with a sealing member, and thus the lower chamber is sealed with respect to the upper chamber.

Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members that electrically connect the plurality of battery cells; and a voltage detection conductor that detects voltages at each of the plurality of battery cells. The casing includes at least a pair of resin side plates that sandwich and support the plurality of battery cells from both sides. The voltage detection conductor is formed in a predetermined shape and integrated with the side plates.

Abstract: An electricity storage device comprises a plurality of electricity storage cells, a casing which stores the electricity storage cells, a plurality of conductive members for electrically connecting the electricity storage cells together, a control device which controls the electricity storage cells, and voltage detection lines for electrically connecting the electricity storage cells with the control device. The casing includes at least a pair of side plates made of resin.

Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members used to electrically connect the plurality of battery cells; a first chamber, formed in the casing, in which the plurality of battery cells are disposed; and a second chamber, formed in the casing and isolated from the first chamber, into which emitted matter from the battery cells is released, wherein: the conductive members and the battery cells are connected together within the second chamber.

Abstract: An electric storage module includes: a plurality of electric storage units; a casing that houses the plurality of electric storage units, and includes a pair of resin side plates that hold and support at least the plurality of electric storage units from opposite sides; a plurality of conductive members for electrically connecting the plurality of electric storage units; a metal cover member that covers the casing on an outside of each of the side plates; and a peripheral wall protruding from each of the side plates so as to surround each of the plurality of conductive members, wherein: a height of the peripheral wall from each of the side plates is higher than a height of the conductive members from each of the side plates, and smaller than a distance from each of the side plates to the cover member.

Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members that electrically connect the plurality of battery cells; and a voltage detection conductor that detects voltages at each of the plurality of battery cells. The casing includes at least a pair of resin side plates that sandwich and support the plurality of battery cells from both sides. The voltage detection conductor is formed in a predetermined shape and integrated with the side plates.

Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members used to electrically connect the plurality of battery cells; a first chamber, formed in the casing, in which the plurality of battery cells are disposed; and a second chamber, formed in the casing and isolated from the first chamber, into which emitted matter from the battery cells is released, wherein: the conductive members and the battery cells are connected together within the second chamber.