Analytical balance with a weighing chamber having structure operating as a locking mechanism due to unique method of assembling and disassembiling components of the chamber

Abstract

A weighing chamber in a shape of a transparent cuboid with sliding panels (1, 2, 3, 4, 5) assembled on structural guides (8) that are fastened using at least a single adjustable lock (13) blocking at least one panel in a way that their releasing enables sliding and disassembling the other panels. The fastening lock forms a profiled element, preferably an angle bar shaped component assembled in a detachable manner to the horizontal structural beam (8). The chamber comprises two vertical columns (6, 7) assembled at the back corners of the chamber's interior which support the chamber structure (8) comprising a horizontal beam for assembling the fastening lock and guides for holding and sliding the top and side panels using grips (9, 10, 11).

Claims

1. A weighing chamber forming a superstructure of a weighing device, outlining weighing section and protecting the section against air movement and air drafts, in a shape of a transparent cuboid, wherein panels (1, 2, 3, 4, 5) are assembled in guides of a structure (8) using at least a single adjustable lock (13) blocking a top panel in a way that releasing of the top panel enables slide and disassembling of the other panels.

2. The chamber according to claim 1, wherein said fastening lock (13) is a profiled element, an angle bar shaped, assembled in a detachable manner to a horizontal structural beam.

3. The chamber according to claim 2, wherein said fastening lock is assembled in a detachable manner, using a threaded connection (12, 14) and (15).

4. The chamber according to claim 1, wherein the chamber features two vertical columns (6, 7) assembled at back corners of a chamber's interior, wherein the two vertical columns support the chamber structure (8) comprising a horizontal beam for assembling the fastening lock and holding and sliding the top and side panels using grips (9, 10, 11).

5. The chamber according to claim 1, wherein said grips (9, 10, 11) are bilaterally fixed on the panels.

6. A weighing chamber forming a superstructure of a weighing device, outlining weighing section and protecting it against air movement and air drafts, in a shape of a transparent cuboid comprising side panels (1, 2, 3, 4), a top panel (5), and a fastening lock (13) located in a structure (8) comprising guides for the top and side panels, wherein the lock (13) blocks the top panel (5), and the top panel (5) blocks the back panel (3), and the back panel (3) blocks the left and the right panels (2, 4).

7. The chamber according to claim 6, wherein the fastening lock (13) is an angle bar shaped element, assembled in a detachable manner to a horizontal structural beam of the structure (8).

8. The chamber according to claim 7, wherein the fastening lock is assembled in a detachable manner, using a threaded connection (12, 14) or (15).

9. The chamber according to claim 6, wherein the chamber features two vertical columns (6, 7) assembled at back corners of a chamber's interior, wholly included in the interior, that support the chamber structure (8) comprising a horizontal beam for assembling the fastening lock and holding and sliding the top and side panels using grips (9, 10, 11), wherein a mutual stable connection of all elements of the chamber is achieved by at least one blocking member, wherein at least one blocking member is in the form of a lock with a shaped bracket.

10. The chamber according to claim 6, wherein grips (9, 10, 11) are bilaterally fixed on the panels, wherein internal parts of the grips (9, 10, 11) constitute limiters against total pulling out of the slidable panels (2, 4, 5).

11. The chamber according to claim 6, wherein the side panels (2, 4) and the top panel (5) are slidable.

12. The chamber according to claim 6, wherein the structure of the chamber features elements jointed with each other in a sequential manner, wherein a nut or a screw (12) is unscrewed holding an angle bar (13) protecting back edge of the top panel (5) against sliding out, wherein after removing an angle bar (13), a space is created under which a grip's pad (9) can pass while sliding, wherein sliding out the top panel (5) unlocks a back panel (3) and enables its removing from a groove in the chamber basis without using force, wherein after removing the back panel it is possible to remove the two side panels (2, 4) from the bottom guides.

13. The chamber according to claim 6, wherein balance design enables disassembling the chamber by carrying out a set of activities in a strictly determined order, wherein a nut or a screw (12) is unscrewed holding an angle bar (13) protecting back edge of the top panel (5) against sliding out, wherein after removing an angle bar (13), a space is created under which a grip's pad (9) can pass while sliding, wherein sliding out the top panel (5) unlocks a back panel (3) and enables its removing from a groove in the chamber basis without using force, wherein after removing the back panel it is possible to remove the two side panels (2, 4) from the bottom guides.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention is indicated in the accompanying drawings, where

(2) FIG. 1 presents balance in an exploded view, but in a form adopted by the chamber components after assembling,

(3) FIG. 2 and FIG. 3 correspondingly presenting cross section through a lock with a screw and a nut.

(4) FIG. 4 shows the sequence of steps for assembling, and

(5) FIG. 5 shows the sequence of steps for disassembling the apparatus

DETAILED DESCRIPTION OF THE INVENTION

(6) The chamber is cuboid shaped assembly forming a superstructure to a balance and comprises four transparent side panels (1, 2, 3, 4) and a top panel (5). The chamber structure comprising transparent panels is stabilized by two vertical columns (6, 7) assembled at the back corners of the chamber's interior which support the chamber structure (8) comprising a beam for holding and sliding the top and side panels using grips made of plastic (9, 10, 11) fixed on both sides of the panels, which grips, in assembled form, constitute for a limiter against total pulling out of the panel (2, 4, 5), and blocking its sliding put by hooking it against the back panel in case of the side panels (2, 4) and an angle bar (13) in case of the top panel. Clearly, it is possible to assembly another lock, for instance for locking one of the side panels. In this case releasing such lock with appropriate location of the side and back panel provides access to balance pan. Balance design enables disassembling the chamber by carrying out a set of activities in a strictly determined order. First a nut or a screw (12) is unscrewed holding the angle bar (13) protecting the back edge of the top panel (5) against sliding out. In case of using a screw (FIG. 2) a plastic made top structure of crossbars with guides (8) features a metal member with a threaded opening (15). A version (FIG. 3) with a nut in the plastic made top structure (8) features a threaded mandrel (14) for screwing a nut. After removing the angle bar (13), a space is created under which grip's pad (9) can pass while sliding. Sliding out the top panel unlocks the back panel (3) and enables its removing from the groove in the chamber basis without using force. After removing the back panel it is possible to remove the two side panels from the bottom guides, that in chamber's assembled state are locked by grip pads (10, 11) glued on the internal side of the panels and which pads hook against the back panel while pulling out. The front panel (1) is assembled permanently and it supports the structure of the crossbars featuring the top guides (8).

(7) The guides and side panels (2, 4) are designed in a way to maintain maximum air-tightness of the weighing chamber. The bottom and top edges of the side panels (2, 4) are positioned in the guides. The bottom edges of the front (1) and back (3) panel are positioned in grooves. The sliding side panels are slightly longer than the distance between the front and the back panel in order to ensure total covering of the space to access the chamber interior. The size of the front panel (1) ensures that it slightly enters into the grooves of the side guides on the both sides thus complete closure of the chamber requires application of little force, resulting in a characteristic clanking sound of glass.