SI23366A - Clamping mechanism of file folder with improved base plate - Google Patents

Abstract

A clamping mechanism (1) of a file folder (2), which consists of a base plate (10) on which two immovable spikes (11, 12) are fastened fixedly and two movable spikes (144, 145) are fastened pivotally, the latter two being either pressable - by means of an appropriate mechanism -against the said immovable spikes (11, 12), or temporarily shiftable into a position at a distance from the immovable spikes (11, 12), where the said plate (10) is adapted for fixing on the interior surface (220) of a cardboard cover (22) of a folder (2) for archivation of respectively perforated sheets of paper and comprises respective holes (181, 182, 183, 184) to receive rivets or similar fixing means for the purpose. The intention of the invention is to design such a clamping mechanism (1) of the said file folder (2) that the latter could be protected on a long-term basis - in an as economic manner as possible and possibly without additional costs in the process of the very manufacture of the mechanism (1) - from unfavourable effects of the said cardboard base on which the mechanism is fixed, especially still from the risk of appearance of corrosion on the perimetral rim (105) of the base plate (10) of the mechanism (1) owing to hygroscopicity of the cardboard material, which the base plate (10) is permanently in contact with during the use of the mechanism or the whole file folder. The problem is solved so that the perimetral rim (105) of the base plate (10) is arranged in the plane (E2) which is distant from the plane (E1) of the fitting of the base plate (10) to the interior surface (220) of the file folder (2) cover (22) for a certain distance (S) amounting preferably to between 0.5 and 1.5 times the thickness (t) of the sheet metal, the base plate (10) consists of.

Description

NIKO, Metalworking Company, d.d., Zelezniki

MPK ⁸ : B 42 F 13/24

Clamping mechanism of the binder with a refined base plate

The invention is in the field of bookbinding and temporary clamping aids. the storage of documents, namely, in the field of document editing and depositing aids, in particular those comprising a means of clamping down the holes with which the documents provided for clamping are provided, namely a two-part clamping assembly comprising a fixed part with at least two mandrels and a movable part with thus at least two thorns.

Starting from a known mechanism of this type, consisting of a base plate on which are fixed two movable mandrels and rotatably two movable mandrels, which are either pressed against the said motionless mandrels by means of a suitable mechanism or temporarily move to a position at a distance from the said mandrels, at the said plate being adapted for attachment to the inner surface of a cardboard cover of a registrar for archiving of appropriately perforated sheets, the invention is based on the problem of how to design a mechanism of said registrar in which it would be economical in the most economical way and possibly at no additional cost in the process of making the mechanism itself the latter can be protected in the long term from the adverse effects of the cardboard substrate on which the mechanism is attached, in particular against the risk of • corrosion of the base plate of the mechanism due to the hygroscopicity of the cardboard material with which the mechanism or material is used. of the whole binder the baseplate is constantly in contact.

Many of the solutions of clamping mechanisms for registrars are known to those skilled in the art. Two of them, which are used inter alia to attach to the inner surface of one of the binder covers of a binder, are described in EP 0 775 058 BI and EP 1 606 122 BI.

Each of them comprises a base plate, which is basically a rectangular sheet section with rounded corner areas, comprising, inter alia, different recesses, ribs and grooves which provide the base plate with the necessary rigidity. Such a plate basically consists of a corrosion-resistant steel sheet, which is previously e.g. Electroplated or coated with a layer of anti-corrosion protective paint and then subjected to cutting and forming in suitable tools embedded in suitable presses.

Along one of the longer longitudinal edges, the fixed base is fixed to the said base plate, the free ends of which are slightly curved in the direction of the remaining longer longitudinal edge of the base plate. In the vicinity of the rest of the longer longitudinal edges of the base plate there are provided beds in which the swivel sections of the clamping assembly are rotated, which in addition to said sections also comprises an eccentric intermediate section and movable spikes which are slightly curved in their directions at their free ends. towards the free ends of the fixed thorns. Further, a cantilever bracket projecting approximately orthogonal to the plane of the base plate is provided in the central region of the base plate and on which a control arm with a suitable pressure element adapted to engage with said intermediate section of the clamp assembly is rotatably mounted. In this way, with • · · ·

moving the control lever in one direction results in a rotation of the clamping assembly in the beds in one direction, and thus e.g. the displacement of the movable mandrels from the non-movable mandrels, and by moving the lever in the opposite direction, a rotation of the clamping assembly in the opposite direction is achieved, with the free ends of the movable mandrels pressed against the corresponding free ends of the movable mandrels.

Such a clamping mechanism is said to be mounted on the inner surface of one of the binder covers. Most of the paper-based registrars used for archiving paper documents consist of a pair of covers connected to one another by a suitable back, the said back being made uniformly with said covers, and for the most commonly used and also the most affordable registrars, both covers including the back consist of cardboard. In this case, said baseplate is usually in a non-removable manner, especially by riveting, it is secured to said inner surface of one of the covers so that the clamping mechanism is arranged in the central area of the cover and in the immediate vicinity of the back of the recorder. For this purpose, holes are provided through the base plate through which the base plate of the clamping mechanism is riveted onto the corresponding binder cover. The base plates known to date are designed in such a way that the riveting areas of the intended holes or areas are in close proximity to or. they are located around the holes in the same plane as the circumferential edge of the panel. As a result, after attaching the base plate of the clamping mechanism to the inner surface of the binder cover on said inner surface, the circumferential edge of the base plate is positioned practically along the entire circumference of the plate. Since the circumferential edge of the base plate is exposed to cutting during the manufacture of the board itself, the surface protective layer, which is provided with the sheet metal prior to cutting and transformation of the base plate, is damaged or interrupted in the area along the entire circumferential edge. Accordingly, along the entire circumference of the base plate, the circumferential edge of the latter is virtually unprotected against corrosion. For recorders with a cover and back • · made of cardboard, changes in the humidity of the cover material on which the clamping mechanism is attached may occur during registration. The cardboard is hygroscopic and can absorb a relatively large amount of moisture in the event of a change in the humidity of the surrounding air. The moisture present in the cover material directly affects the possibility of corrosion occurrence and progression in the area of said peripheral edge of the base plate, which, as mentioned above, is virtually completely unprotected due to the nature of the base plate itself. The Applicant is aware that corrosion can be prevented by eliminating its causes, e.g. either use a cover of different material instead of a cardboard cover or at least a plasticized cardboard cover, or additionally protect the said circumferential edge after corrosion of the base plate. However, in practice, such measures are practically impracticable, since the use of other cover materials has a significant impact on the final price of the entire binder, and the additional corrosion protection operation of the peripheral edge of the baseplate in large-scale production also results in a significant increase in costs, which the market is not prepared to accept. As virtually all registrar manufacturers worldwide face this problem, eliminating it would certainly be a significant competitive advantage.

The invention relates to a clamping mechanism of a binder with a sophisticated base plate intended for unrestrained attachment, in particular riveting, to a binder consisting of a pair connected to one another via a back and uniquely derived and of hygroscopic material, in particular of cardboard, consisting of covers. Such a mechanism comprises an appropriately rigid and corrosion-proof steel sheet of a certain thickness, consisting of a substantially rectangular base plate with a peripheral edge, which is in one plane and consists of a pair of longer longitudinal edges and a pair of shorter transverse edges. On the said baseplate, there are fixed fixed pegs along one of the longer longitudinal edges, the free ends of which are slightly curved in the direction of the remaining longitudinal edge of the base plate and, in the vicinity of the remaining longitudinal edges of the base plate, are provided beds in which the sections of the clamping assembly are rotatably restrained, which in addition to said sections also comprises an eccentric intermediate section with respect to said beds and movable mandrels, which are slightly curved at their free ends in the direction towards the free ends of said stationary mandrels. Furthermore, a projection about a perpendicular with respect to the plane of the base plate is provided in a projection substantially perpendicular to the plane of the base plate, on which a control lever with a suitable pressure element adapted to engage with said intermediate section of the clamping assembly is rotated, such that by moving the control lever in one direction reaches the rotation of the clamping assembly in the beds in one direction and thus e.g. the displacement of the movable mandrels from the non-movable mandrels, by moving the control lever in the opposite direction to rotate the clamping assembly in the opposite direction, with the free ends of the movable mandrels pressed against the corresponding free ends of the movable mandrels. In addition, for the purpose of attaching the clamping mechanism to the inner surface of the corresponding cover of each registrar, the base plate of the clamping mechanism is provided with holes adapted to receive suitable rivets or other fastening means which allow the connection between the clamping mechanism and the corresponding cover to be made necessary for the functionality of the recorder.

According to the invention, each of said holes, which is provided with a base plate for attaching the latter and thus the entire clamping mechanism of the binder to the inner surface of the respective binder cover, is surrounded by a straight embossed area, and all said straight embossed areas with said holes are located in on the same plane coinciding with the inner surface of the associated cover in the mounted state of the clamping mechanism, and for a predetermined distance away from a plane in which at least a pair of longitudinal longitudinal edges and a pair of shorter transverse edges, the peripheral edge of the base plate of the clamping mechanism of the binder is located.

• ·

The distance between said plane of contact of the straight embossed areas on the inner surface of the binder cover and the plane in which the circumferential edge of the clamping base plate is at each time generally corresponds to a value of 0.25 to 2.5 thickness of the sheet comprising the base plate, at in a preferred embodiment of the invention, said distance is between 0.5 and 1.5 thicknesses of sheet metal comprising the base plate of the clamping mechanism of the binder.

The mechanism of the invention will now be explained in greater detail on the basis of an embodiment illustrated in the accompanying drawing showing

FIG. 1 recorder with integrated clamping mechanism in open state and in outline;

FIG. 2 is a detail A according to FIG. 1

FIG. 3 is a register according to FIG. 1 and 2 in side view;

FIG. 4 is a register according to FIG. 1 and 2 in the outline;

FIG. 5 the clamping mechanism of the binder in a perspective view from one side,

FIG. 6 and the clamping mechanism of the binder in perspective perspectives from the opposite side.

The clamping mechanism 1 according to the invention is provided for installation in a binder 2 for archiving on a sketch of non-displayed paper documents, consisting of a pair of covers 21, 22, which are connected to each other via a corresponding back 23, said back 23 being made uniformly with said covers 21 , 22, and both covers 21, 22 including the back 23 consist of hygroscopic material, in particular cardboard. In the example shown, the clamping mechanism 1 is generally non-removable, preferably by riveting, attached to the inner surface 220 of the cover 22.

The clamping mechanism 1 comprises a base plate 10, which basically represents a rectangular sheet section with rounded corner areas, and which, inter alia, comprises various recesses, ribs and grooves that provide the base plate 10 with the necessary rigidity.

• ·

Such a plate 10 basically consists of a corrosion-resistant steel sheet t of thickness t, e.g. Electroplated or coated with a layer of anti-corrosion protective paint and then subjected to cutting and forming in suitable tools embedded in suitable presses. Due to the nature of the construction of the base plate 10, the non-shielded circumferential edge 105 consists of longer longitudinal edges 101, 102 and shorter transverse edges 103, 104.

Along one of the longer longitudinal edges 101, 102, the fixed base 10 is fixed securely to said base plate 10, whose free ends 1Γ, 12 'are slightly curved in the direction of the remaining longer longitudinal edge 102 of the base plate 10. Near the rest of the longer ones along the longitudinal edges 101, 102 of the base plate 10, there are provided slots 13 ', 13 in which the sections 141, 142 of the clamping assembly 14 are rotatably spaced apart, in addition to said sections 141, 142, having an intermediate section eccentric with respect to said slots 13', 13. 143 and the movable mandrel 144, 145, which are slightly curved at their free ends 144 ', 145' in the direction of the free ends 1Γ, 12 'of the immovable toms 11, 12.

Further, a cantilever bracket 15 projecting about orthogonal to the plane of the base plate 10 is provided in about the central region of the base plate 10, and on which the control lever 16 with a suitable pressure element 17 adapted to cooperate with said intermediate section 143 of the clamp is rotatably arranged. In this way, by moving the control lever 16 in one direction, the rotation of the clamping assembly 14 in the beds 13 ', 13 in one direction is achieved, and thus e.g. moving the movable toms 144, 145 away from the stationary toms 11, 12, moving the control lever 16 in the opposite direction to rotate the clamping assembly 14 in the opposite direction, with the free ends 144 ', 145' of the moving toms 144, 145 pressed against their respective free ends 1Γ, 12 'of immovable toms 11, 12.

• ·

For the purpose of attaching the clamping mechanism 1 to the inner surface 220 of the corresponding cover 22 of the binder 2, the base plate 10 is provided with holes 181, 182, 183, 184, adapted to receive unshown rivets or other fastening means to allow the necessary connection between the clamping mechanism. 1 and the associated cover 22. Neither the number nor the arrangement of said holes 181, 182, 183, 184 in the context of the present invention are bound by any limitation; the sole purpose and purpose of the presence of holes 181, 182, 183, 184 is to provide said connection between the clamping mechanism 1 and the cover 22 of the binder 2. Each of said holes 181, 182, 183, 184 is at least in its immediate vicinity surrounded by a flat area 18 območ, 182 ', 183', 184 ', characterized in that for the said areas 181', 182 ', 183', 184 ', all at least in the region of their abutment on the cover 22 of the intended surfaces are in the same plane El and are therefore koplanama. The plane El n of the mounted state of the clamping mechanism 1 corresponds to the inner surface 22 of the cover 22 (Figs. 3 and 4) and is, for a given distance, offset from the plane E2 in which the lower surface of the base plate 10 is located in the region of its circumferential edge 105. Accordingly, therefore, the areas 181 ', 182', 183 ', 184' of the base plate 10, in which the holes 181, 182, 183, 184 are located, in the base plate 10 are embossed below the level of the circumferential edge 105, so that after mounting the clamping mechanism 1 in binder 2 the circumferential edge 105 kept at a distance from the inner surface 220 of the respective cover 20. Thus, the circumferential edge 105 is no longer exposed to the direct influence of the hygroscopic material of the cover 22 and cannot come into direct contact with the moisture contained in the cover material 22, its corrosion exposure is basically eliminated or at least significantly reduced.

According to the invention, it is contemplated that the distance £ between the plane El of the contact areas 181 ', 182', 183 ', 184' on the inner surface of the cover 22 of the register 2 and the plane E2 in which the circumferential edge 105 of the base plate 10 of the clamping mechanism 1 is located corresponds to values from 0.25 to

2.5 t, preferably between 0.5 and 1.5 t, with t representing the thickness of the sheet comprising the base plate 10.

Claims (3)

PATENT APPLICATIONS 1. The clamping mechanism of a binder with a sophisticated base plate (1), designed for unattached fastening, in particular riveting, in pairs connected to one another through the back (23) and uniquely of hygroscopic material, in particular of cardboard, made covers ( 21, 22) a binder (2), such mechanism (1) comprising a suitably rigid and corrosion-resistant steel sheet of a certain thickness (t) comprising a substantially rectangular base plate (10) having a circumferential edge (105), being in a plane (£ 2) and consisting of a pair of longer longitudinal edges (101, 102) and a pair of shorter transverse edges (103, 104), and having said longitudinal edges (101) on said base plate (10) , 102) fixedly fixed motionless mandrels (11, 12) whose free ends (1Γ, 12 ') are slightly curved toward the remaining longer longitudinal edge (102) of the base plate (10), near the rest of the longer longitudinal however, there are provided beds (13 ', 13) in which the sections (141, 142) of the clamping assembly (14), which, in addition to said sections (141, 142), comprise further eccentric with respect to said bearings (13 ', 13), a running intermediate section (143) and a movable mandrel (144, 145) which are slightly curved at their free ends (144', 145 ') towards the free ends (11' , 12 ') of said non-movable mandrels (11, 12), further projecting about a perpendicular with respect to the plane of the base plate (10) projecting a support (15) on which the control lever (16) is rotatably arranged relative to the plane of the base plate (10). ) with a suitable pressure element (17) adapted to cooperate with said intermediate section (143) of the clamping assembly (14) so that by moving the control lever (16) in one direction, the clamping assembly (14) is rotated in the bearings (13) ', 13) in one direction and thus e.g. moving the movable mandrels (144, 145) away from the movable mandrels (11, 12) and moving the control lever (16) in the opposite direction to rotate the clamping assembly (14) in the opposite direction, leaving the free ends (144 ', 145 ') of the movable mandrels (144, 145) are pressed • · · · against the corresponding free ends (1Γ, 12') of the movable mandrels (11, 12), and further for the purpose of attaching the clamping mechanism (1) to the inner surface (220) ) each associated cover (22) of the recorder (2) the base plate (10) of the clamping mechanism (1) provided with holes (181, 182, 183, 184) adapted to receive suitable rivets or other mounting means to allow the functionality of the recorder (2) of the necessary connection between the clamping mechanism (1) and the associated cover (22), characterized in that each of the holes (181, 182, 183, 184) which is provided with the base plate (10) for securing the latter and thus the whole clamping mechanism (1) the recorder (2) to the inner surface (220) of the corresponding cover (22) of the recorder (2), enclosed by a flat embossed area (181 ', 182', 183 ', 184'), and all the said flat embossed the areas (18Γ, 182 ', 183', 184 ') with said holes (181, 182, 183, 184) are in the same plane (El), coinciding with the inner surface (220) of the respective mounting mechanism (1). the cover (22) and which, for a predetermined distance (δ), are distant from the plane (E2) in which at least a pair of longitudinal longitudinal edges (101, 102) and a pair of shorter transverse edges (103, 104) have a peripheral circumferential edge (105). ) base plates (10) of the clamping mechanism (1) of the binder (2). Clamping mechanism according to claim 1, characterized in that the distance (<5) between the plane (El) of the contact areas (18Γ, 182 ', 183', 184 ') on the inner surface of the cover (22) of the recorder (2) and the plane (E2), in which the circumferential edge (105) of the base plate (10) of the clamping mechanism (1) is located at each time, corresponds to a value of 0.25 to 2.5 thickness (t) of the sheet comprising the base plate (10). Clamping mechanism according to claim 2, characterized in that the distance (<5) is between 0.5 and 1.5 thickness (t) of the sheet comprising the base plate (10).