Abstract: A chair includes a leg 1, a seat 5 including a pressure receiving surface PS, a backrest 6, and a support mechanism SM. The seat 5 can move in the front-rear or left-right direction along a predetermined trajectory and to downwardly incline a tip side of the seat 5 in a movement direction in accordance with a movement of the seat 5 from a predetermined reference position (S). The support mechanism SM includes a return-force generation unit configured to generate, in accordance with an amount of movement, a return force in a direction in which the seat 5 moved from the reference position (S) in the front-rear or left-right direction is returned to the reference position (S), and movably supports the backrest 6 in the left-right direction together with a movement of the seat 5 in the left-right direction.

Abstract: Provided is a scheme of providing a plurality of users other than a main user such as an owner with a discharge capacity which a secondary battery system potentially has. A user interface providing device includes an acquisition part, a receiving part, a determination part, and a generation part. The acquisition part acquires a discharge capacity capable of providing to a whole plurality of users other than a main user in a discharge capacity of a secondary battery system. The receiving part receives a logon of a user included in the plurality of users. The determination part determines a usable discharge capacity for a logged-on user from the discharge capacity capable of providing to the whole plurality of users. The generation part generates information indicating contents of a user interface screen including a screen element indicating the usable discharge capacity for the logged-on user.

Abstract: A chair includes a leg 1, a seat 5 including a pressure receiving surface PS, a backrest 6, and a support mechanism SM. The seat 5 can move in the front-rear or left-right direction along a predetermined trajectory and to downwardly incline a tip side of the seat 5 in a movement direction in accordance with a movement of the seat 5 from a predetermined reference position (S). The support mechanism SM includes a return-force generation unit configured to generate, in accordance with an amount of movement, a return force in a direction in which the seat 5 moved from the reference position (S) in the front-rear or left-right direction is returned to the reference position (S), and movably supports the backrest 6 in the left-right direction together with a movement of the seat 5 in the left-right direction.

Abstract: A battery device may include a battery frame, and a battery module disposed on the battery frame. The battery frame may include a base member, a slide base being disposed on an upper surface of the base member and being formed in a rectangular shape defined by a pair of first sides extending in a first direction and a pair of second sides extending in a second direction in a plan view, a plurality of metal springs being mounted on an upper surface of the slide base at intervals along the first direction of the slide base, and being extensible in a vertical direction, and a support plate being connected to upper sides of the plurality of springs and supporting the battery module on an upper surface of the support plate.

Abstract: A battery device may include a battery frame, and a battery module disposed on the battery frame. The battery frame may include a base member, a slide base being disposed on an upper surface of the base member and being formed in a rectangular shape defined by a pair of first sides extending in a first direction and a pair of second sides extending in a second direction in a plan view, a plurality of metal springs being mounted on an upper surface of the slide base at intervals along the first direction of the slide base, and being extensible in a vertical direction, and a support plate being connected to upper sides of the plurality of springs and supporting the battery module on an upper surface of the support plate.