Container scale
First Claim
1. Weighing device for a lifting apparatus for containers (5), which swivel on an approximately horizontal axis (6), with at least one swivel arm (2) and electronic devices for calculation and storage of the weighing results, characterized by the fact thatthe swivel arm (2) is integrated with a force measuring apparatus, through which the entire force flow of the swivel arm passes;
- this apparatus comprises essentially two parallel flexural members (7), which together form the primary spring of an elastic stepdown, and two spring tongues (8) lying one below the other parallel to the flexural members (7), which together form the secondary spring of the elastic stepdown;
a force transducer (11) is installed between these spring tongues (8), whose force measuring direction defines an action line W, in which one spring tongue (8) is mounted on the swivel arm (2) on the axle part and the other spring tongue is mounted on the load-bearing part,the two flexural members (7) are components of the swivel arm (2) and thus are integrated therein so that they lie horizontally during a central operating position of the swivel arm (2),the force transducer (11) is installed between the spring tongues (8) in such manner that the force acting on it (therefore also the action line W), is perpendicular to the direction of the flexural members (7), to measure a vertically proceeding force in the central operating position of the swivel arm (2).
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention concerns a process and a device for carrying out the process for weight determination of the contents of containers (5), for example for garbage. Two swivel arms (2) that are lifted by hydraulic devices (3) are mounted on a garbage collecting vehicle (1). The container (5) is carried by a fork (4). Integrated into the swivel arm (2) is a force measuring apparatus that comprises two flexural members (7) supporting the main load, two spring tongues (8), and a force transducer (11) that is installed between two stilts (12) between the spring tongues (8). The flexural members (7) and the spring tongues together form an elastic stepdown; the force transducer (11) thus only measures that part of the total load flowing through it as given by the stepdown. Further, a gradient meter (16) is mounted on the swivel arm (2), that has the same action line W as the force measurement device integrated in the swivel arm (2). In this manner, the measurement of the weight of the container (5) is very extensively independent of the gradient. The weight of container (5) is calculated in known manner by two "total weight-tare=net" weighings. In order to exclude the influences of elastic prestresses, the angle range over which it is measured is limited to a preset degree. The container (5) is inserted in the fork (4) in the position L, position M is the measuring position, and the container (5) is emptied in position E (FIG. 1).
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Citations
15 Claims
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1. Weighing device for a lifting apparatus for containers (5), which swivel on an approximately horizontal axis (6), with at least one swivel arm (2) and electronic devices for calculation and storage of the weighing results, characterized by the fact that
the swivel arm (2) is integrated with a force measuring apparatus, through which the entire force flow of the swivel arm passes; - this apparatus comprises essentially two parallel flexural members (7), which together form the primary spring of an elastic stepdown, and two spring tongues (8) lying one below the other parallel to the flexural members (7), which together form the secondary spring of the elastic stepdown;
a force transducer (11) is installed between these spring tongues (8), whose force measuring direction defines an action line W, in which one spring tongue (8) is mounted on the swivel arm (2) on the axle part and the other spring tongue is mounted on the load-bearing part,the two flexural members (7) are components of the swivel arm (2) and thus are integrated therein so that they lie horizontally during a central operating position of the swivel arm (2), the force transducer (11) is installed between the spring tongues (8) in such manner that the force acting on it (therefore also the action line W), is perpendicular to the direction of the flexural members (7), to measure a vertically proceeding force in the central operating position of the swivel arm (2). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- this apparatus comprises essentially two parallel flexural members (7), which together form the primary spring of an elastic stepdown, and two spring tongues (8) lying one below the other parallel to the flexural members (7), which together form the secondary spring of the elastic stepdown;
Specification