Abstract: An onboard device has an electricity storage, a control unit, a first communication circuit, and a memory. Power stored in the electricity storage is supplied to the control unit, the first communication circuit, and the memory. A main switch is provided on a power supply path extending from the electricity storage to the first communication circuit and the memory. When the terminal voltage of the electricity storage falls below a threshold value, the main switch is switched off.

Abstract: A lightweight stroller 10 is provided. The stroller 10 includes front legs 12, rear legs 14, a seat support frame 70 connected to the front legs 12, a backrest support frame 34 connected to the seat support frame 70, a headrest plate 52 connected to an upper part of the backrest support frame, and a pair of side plates 50 disposed on the opposite sides, respectively, of the backrest support frame 34. A base sheet can be stably hold by the backrest support frame 34, the headrest plate 52 and the side plates 50 without increasing the length of connecting rods.

Abstract: A lightweight stroller 10 is provided. The stroller 10 includes front legs 12, rear legs 14, a seat support frame 70 connected to the front legs 12, a backrest support frame 34 connected to the seat support frame 70, a headrest plate 52 connected to an upper part of the backrest support frame, and a pair of side plates 50 disposed on the opposite sides, respectively, of the backrest support frame 34. A base sheet can be stably hold by the backrest support frame 34, the headrest plate 52 and the side plates 50 without increasing the length of connecting rods.

Abstract: A stroller comprises a main structure provided with a handle including a pair of back pipes, a body structure, and a seat. The body structure includes a back part, and a pair of side parts extending from a right and a left side of the back part, and is formed of a cushioning material. The stroller includes a support sheet for supporting the body structure on the main structure, and a reclining mechanism for adjusting inclination of the body structure relative to the seat. The side parts are connected to corresponding back pipes by connecting flaps formed of a flexible material.

Abstract: A stroller includes armrests, rear legs pivotally joined to the armrests, respectively, a handle pivotally joined to the armrests, and brackets interconnecting the handle and the rear legs. The brackets engage with locking members mounted on lower end parts of side pipes of the handle. Holding members are supported on sides of the side pipes opposite to sides of the same with which the brackets are in contact with the side pipes by pins, respectively. When the stroller is folded in two, stopping parts of the locking members and stopping parts of the holding members are engaged, respectively.

Abstract: A stroller includes armrests, rear legs pivotally joined to the armrests, respectively, a handle pivotally joined to the armrests, and brackets interconnecting the handle and the rear legs. The brackets engage with locking members mounted on lower end parts of side pipes of the handle. Holding members are supported on sides of the side pipes opposite to sides of the same with which the brackets are in contact with the side pipes by pins, respectively. When the stroller is folded in two, stopping parts of the locking members and stopping parts of the holding members are engaged, respectively.

Abstract: A stroller 10 comprises a main structure 12 provided with a handle 26 including a pair of back pipes 30, a body structure 14, and a seat 16. The body structure 14 includes a back part 40, and a pair of side parts 42 extending from the right and the left side of the back part 40, and is formed of a cushioning material. The stroller 10 includes a support sheet 18 for supporting the body structure 14 on the main structure 12, and a reclining mechanism 10 for adjusting the inclination of the body structure 14 relative to the seat 16. The pair of side parts 42 are connected to the corresponding back pipes 30 by connecting flaps 46 formed of a flexible material.

Abstract: A stroller includes armrests (3), rear legs (1) pivotally joined to the armrests (3), respectively, a handle (5) pivotally joined to the armrests (3), and brackets (4) connecting the handle (5) and the rear legs (1). The brackets (4) engage with locking members (6) mounted on lower end parts of side pipes of the handle (5). Holding members (10) are supported on sides of the side pipes opposite to sides of the same with which the brackets (4) are in contact of the side pipes b pins (70), respectively. When the stroller is folded in two, the stopping parts (6b) of the locking members (6) and the stopping parts (10a) of the holding members (10) are engaged, respectively.