Mounting and protective means in force measuring of weighing devices

• US 3,997,014 A
• Filed: 10/06/1975
• Issued: 12/14/1976
• Est. Priority Date: 10/23/1974
• Status: Expired due to Term

• Current Assignee: S.P.M. Instrument AB
• Original Assignee: S.P.M. Instrument AB
• Inventors: Soderholm, Arne, Fluur, Alf
• Primary Examiner(s): Miller, Jr., George H.
• Application Number:
  US05/620,065
• Time in Patent Office: 435 Days
• Field of Search: 177/128, 177/154-156
• US Class Current: 177/128
• CPC Class Codes: G01G 21/00 Details of weighing apparatus
• CPC Class Codes: G01L 1/26 Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload

Abstract

A mounting and protective means for use in force measuring or weighing devices comprising a load carrier and a load transmitting means. Its purpose is to facilitate the mounting of the carrier and the transmitting means and to constitute a limiter for lateral displacements in the plane perpendicular to the load action line of the carrier. The mounting and protective means comprises two parts which at measuring are in contact with the transmitting means, one of the parts being also connected to the load carrier and the other part to a foundation for the carrier. The two parts can be brought into at least two positions mutually in the load transmission direction. In one mutual position they are fixed in such position in said plane which the transmitting means is desired to have as initial measuring position. In another, possibly the same, position, this is chosen to enable the transmitting means to be inserted or taken out. Further, the parts may be brought in such mutual position in said direction, that they are freely movable in said plane, as is necessary at load measurement, but the movability is limited by stop devices to suitable predetermined values.

Claims

1. Mounting and protective means intended to be part of a force measuring or weighing device which consists of load carriers (2, 39) carried by load transmitting means (6, 40), whose load transmission is a measure of the load, and which load transmitting means are movable from their respective desired initial positions to allow displacements of the load carrier relative to its foundation (12) in at least the plane normal to the transmission and action direction of the load, the said mounting and protective means consisting of two parts in a row on either side of the load transmitting and displacement-absorbing means, one of the said parts (1, 38) being positioned between the load carrier and the load transmitting means, for transmitting load from the load carrier to the said means, and the other part (8, 42) being positioned between the load transmitting means and the foundation, transmitting load from the said means to the foundation,

characterized in that the two parts (1, 38) and 8, 42 respectively) may be arranged to assume at least two positions relative to each other in the action direction of the load,

and that in one such position the two parts have load transmitting contact with each other and are mutually fixed in that position so as to not permit motion in the plane normal to the action direction of the load, which causes the load transmitting means to assume the said initial position.

and in another mutually fixed position, possibly coincident with said one position, the position is so adjusted that the load transmitting means (6, 40) may be brought into or out of the mounting and protective means,

and in a further position, when measuring, the parts of the mounting and protective means have no load transmitting contact with each other, and free movements between the parts are admitted to suitable movement distances determined by plays between the parts.

2. Mounting and protective means according to claim 1, characterized in that the two parts are brought to their positions by means of one or more threaded screws (24, 46) positioned in one part (22, 42) with their symmetry axes substantially in the action direction of the force, the action end of said screws being provided with means for providing guidance in the plane perpendicular to the action plane of the force.

3. Mounting and protective means according to claim 1 characterized in that the two parts (1) and (8) respectively are brought to their positions by means of one or more nuts (10) with their symmetry axes disposed substantially in the action direction, each said nut being threaded on a pillar (9) positioned at one of the parts, and the action end of each nut forming at least one guide sleeve (11) which is guided in a corresponding hole (4) in the other part.

4. Mounting and protective means according to claim 1, characterized in that the part (34) connected to the load carrier is integrated therewith.

5. Mounting and protective means according to claim 1, characterized in that the part connected to the foundation of the load carrier is integrated therewith.

6. Mounting and protective means according to claim 1, characterized in that the two parts are integrated with the load carrier and the foundation of the load carrier respectively.