Abstract: In a POS terminal device (1) according to the present invention, a rotation center of an operator-side rotation shaft (31) is at a position spaced apart from a longitudinal center line of a housing (2), a rotation center of a customer-side rotation shaft (41) is at a position spaced apart from the center line on an opposite side of the operator-side rotation shaft (31), an operator display (3) is rotated by 90 degrees in a horizontal direction around the operator-side rotation shaft (31) in such a way that a lateral end surface having a shorter distance from the rotation center of the operator-side rotation shaft (31) approaches a customer display (4), and the customer display (4) is rotated by 90 degrees in the horizontal direction around the customer-side rotation shaft (41) in the same direction as the operator display (3).

Abstract: A display apparatus (100) includes a shelf tag attachment member (102) being fixed to a front end surface of a product shelf S, and a shelf tag (101) having a display surface (103). The shelf tag (101) is attached to the shelf tag attachment member (102) via a rotation axis A, and is rotatable in a predetermined direction in which the display surface (103) is turned upward. A lower end of the shelf tag (101) is located below a lower surface LS of the product shelf S and a lower end of the shelf tag attachment member (102) in a vertical direction.

Abstract: A shelf tag attachment apparatus (100) includes an electronic shelf tag (101), and a shelf tag holding portion (103) for holding the electronic shelf tag (101). The electronic shelf tag (101) includes, on each of an upper end and a lower end, a groove portion (105) extending in a left-right direction, and the shelf tag holding portion (103) includes a protrusion portion (115) that projects downwards and upwards, and that fits into each of the upper groove portion (105) and a lower groove portion (105). At least one combination of a combination of the upper groove portion (105) and the protrusion portion (115) that fits into the groove portion (105), and a combination of the lower groove portion (105) and the protrusion portion (115) that fits into the groove portion (105) is discretely provided.

Abstract: A shelf tag attachment apparatus (100) includes a shelf tag holding portion (103) for holding an electronic shelf tag (101), and a support member (102) that supports the shelf tag holding portion rotatably about a rotation axis P extending in a left-right direction of the electronic shelf tag (101). The shelf tag holding portion (103) includes a bearing portion for rotating about the rotation axis P relative to the support member (102). The support member (102) includes an arm portion (110) that is provided with a shaft portion (112), and that sandwiches the bearing portion from the left-right direction. The shelf tag holding portion (103) includes a stopper (130) that contacts the arm portion (110), and thereby locks in such a way that a display surface (104) of the electronic shelf tag (101) does not rotate beyond a previously determined range in a direction to face downwards.

Abstract: In a POS terminal device (1) according to the present invention, a rotation center of an operator-side rotation shaft (31) is at a position spaced apart from a longitudinal center line of a housing (2), a rotation center of a customer-side rotation shaft (41) is at a position spaced apart from the center line on an opposite side of the operator-side rotation shaft (31), an operator display (3) is rotated by 90 degrees in a horizontal direction around the operator-side rotation shaft (31) in such a way that a lateral end surface having a shorter distance from the rotation center of the operator-side rotation shaft (31) approaches a customer display (4), and the customer display (4) is rotated by 90 degrees in the horizontal direction around the customer-side rotation shaft (41) in the same direction as the operator display (3).

Abstract: This rack structure includes: a battery shelf (55) for accommodating a plurality of battery units (30); a rack (10) in which at least one battery shelf (55) is mounted; and a connector (180) which electrically connects the battery shelf and the rack with each other. The connector (180) has a first connector member (181) disposed on a rear surface of the battery shelf and a second connector member (191) disposed on the rack side, and is configured such that the first connector member (181) and the second connector member (191) are connected with each other while the battery shelf (55) is moved to a predetermined mounting position in the rack.

Abstract: A battery shelf assembly (50) includes: a plurality of battery units (30); a battery shelf (55) accommodating the battery units (30), configured such that the battery units (30) are mounted or dismounted by sliding movement in the battery shelf; and a power connector (120) connecting the battery unit (30) and the battery shelf (55) so that power of the battery unit can be output. The power connector (120) has: a first connector member (121) disposed at an electrode terminal of the battery unit (30); a second connector member (131) disposed on the battery shelf side and configured to connect with the first connector member (121); and a floating structure that absorbs a position gap between the first and second connector members.