FR2848278A1 - Seal, washer or disc cutter, e.g. for plumbing, has blades of circular, cylindrical or other shape to cut articles from sheet or plate materials - Google Patents

Abstract

The cutter consists of two levers connected by a pivot (5) making two jaws in the form of a base (1) and a blade holder (4A) carrying two circular or cylindrical blades (2a, 2B). When a pressure is applied to the levers the blades cut a ring-shaped seal or washer from a sheet or plate of a material (3) such as rubber or joint board placed on the base. The blade holder can be fastened to the jaw by a threaded or bayonet joint or magnet. Variants of the cutter can have the blade holders in the form of two plates with adjustable blades for cutting washers of large size.

Description

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  The present invention relates to an apparatus for manufacturing seals for fluids.

  During the repair, for example, of a water leak in a plumbing installation, it is often necessary to change the joints at the connections. This means that you have to have the right seal to do the repair. When we do not find this type of seal in its tool box, we have to go and get it from a store.

  The problem is that sometimes this seal is not available or the stores are closed. The leak is therefore yi (unstoppable.

  The device according to the invention makes it possible to remedy this kind of problem. It concerns a device, usable manually, which makes it possible to manufacture joints of dimensions 920 desired.

  The device according to the invention consists of a base (1) and blades (2A and 2B) cutting, round or circular. Each pair of circular blades (2A and 2B) relates to a joint dimension. To make a joint, simply press a sheet of rubber or joint board (3) with the pair of blades. To exert sufficient pressure to cut the rubber sheet or joint board (3) with the pair of blades it is necessary to grip the rubber sheet or the joint plate (3) with two branches articulated (4). The assembly 3 constituting this device may be called a joint pliers.

  Figure 1 shows a non-limiting embodiment of the device according to the invention.

  It consists of two branches (4) articulated about an axis (5). One of the branches comprises a base (1) while the other comprises a pair of blades (2A and 2B) circular or cylindrical, removable or not. A small spring (R) can be provided between the two arms of the apparatus. The MO0 Figure 2 shows the shape and constitution of the two blades (2A and 2B). Figure 3 shows a sheet of rubber or cardboard seal or other joint material (3) in a vice between the base and the blades. FIG. 4 shows the pressure exerted on the sheet of rubber or jointed cardboard or any other joint material (3) by the action of the hand on the two articulated branches (4). This results in a cutout (shown in FIG. 5) in the form of a gasket, rubber sheet or jointed cardboard (3).

  The circular blades (2A and 2B) can form a united assembly by means of one or two braces (6A and 6B). At the center of the $ 2 spider, a normal (7A) or threaded rod (7B) or other fastening means allows the attachment of this pair of circular blades (2A and 2B) to the blade holder portion (4A) of the clamp . Figures 6A and 6B illustrate such a fixation.

  The fixing of this pair of circular blades (2A and 2B) can be done by means of a nut (8A), in the manner of a tray (8B) or a magnet (8c) fixed on 3 rod (7A) or in the orifice which receives the rod (7A).

  There may be as many pairs of circular blades (2A and 2B) as there are joints. -3 It is sufficient to fix them on the blade holder (4A) and operate each time in the same way, as mentioned above, to make joints. On the upper part of the blade holder there may be one or more slots or openings (9) allowing the introduction of a rod for the extraction of the manufactured gasket. An extraction device (10) for the gasket attached directly to this upper or outer part can be designed. This extraction device (10) joints can be composed in the manner of a hair clip or epilator, with the possibility of compression in both directions, 4 S paralléllement and perpendicular to the blade holder (4A). For the manufacture of washers without central hole we can design unique circular blades of standard or custom sizes.

  9o The articulation (5) of the arms (4) can be of any nature, the important thing is that it allows the pinching or crushing or the contact of the two faces to achieve a cutting of the sheet allowing the realization of the desired joint; Figures 9, 10 and 11 show a non-limiting embodiment of the invention. A small punching blade (2B ') may optionally be screwed to the center (7E) of the circular blade 2A. This can in some cases allow the realization of central orifices, as for certain types of valves.

  Another model of blade support can be realized by imagining a matrix having several circular slots of different diameters and allowing the positioning of the blades depending on the desired seal.

  The die or the blades may be magnetized for locking in the slots or fixed by any other means of attachment. Figure 12 illustrates such an example of this blade holder with three different diameters 14A, 14B and 14C and two blades of different diameters for the realization of a seal.

  Such a model can also allow the manufacture of valves or washers without central orifice.

  Another embodiment of the device according to the invention consists of cutting a sheet or joint plate with two blades (2A 45 and 2B) articulated around an arm (11).

  The space between these blades can be adjusted along this arm (11) manually or with a precision electronic or other means for a very high accuracy. These blades (2A and 2B) can be changed in whole or in part. These blades (2A and 2B) may be integral or not wheels (or any other means for blocking the sheet or the joint plate). In the example of the wheels (15A and 15B), these rest on the sheet or joint plate (3), which they block or press in order to prevent any false movement of the sheet or the joint plate which could 3, o distort the manufacture of the joint. The arm (11) has precise graduations to choose the desired spacing between the two blades 2A and 2B. The blade supports 6A and 6B can be locked by means of nuts, .5n bolts (7A, 7B) or any other effective locking means such as magnetization by

example.

  The wheels (15A and 15B) may be suspended or damped by means of springs (9A, 9B) or other means to allow depression of the blade (s) (2A and 2B) in the sheet or joint plate (3). The arm (11) pivots about an axis (5) which may be the continuity of the arm (4). This axis (5) having a planar end (16) presses the sheet or plate to seal against the base (1) via a spring (13) or a bolt or no screw (17). ). According to a non-limiting embodiment of the invention, a bowl (18) can wedge the sheet or the joint plate Ab (3). Figure 15 which shows the device seen from above shows such a bowl (18).

  The relief (c) of the model of Figure 15 may not exist.

  Other embodiments of the device lo according to the invention consists in exerting a force by vertical pressure of the palm of the hand. FIGS. 16, 17, 18, 19, 20 and 21 are non-limiting embodiments of the device according to the invention.

  The embodiment of the device according to the invention of Figure 16 is to press the two arms in the manner of a stapler. The embodiment of the device according to the invention of Figure 17 is to press the apple (P).

  The embodiment of the device according to the invention of FIG. 18 consists in exerting a pressure (Pr) at the end of the device.

  The embodiment of the device according to the invention of FIG. 19 consists in fitting the blade holder (PL) in the manner of a bail or simply placing them on notches, the whole being retained by a cover (4B). of any kind and shape on which pressure is exerted (Pr).

  The embodiment of the device according to the invention of Figure 20A consists of screwing the blade holder (PL) in the manner of a bolt, the whole being retained by a cover (4B) of any kind and shape on which one presses (Pr).

  The embodiment of the device according to the invention of FIG. 20B consists in screwing the blade holder (PL) in the manner of a bolt, the whole being articulated by means of a crank (12) or any means for rotating the blade holder. .2O The receptacle (Rc) of the blade holder has a screw thread.

  The embodiment of the device according to the invention of Figure 21 is to nest in the manner of a baillonette 2S example or to screw the blade holder (PL) in the manner of a bolt, all being retained by a cache (4B) of any type and shape on which pressure is exerted (Pr) .The receptacle of the blade holder comprises a screw thread. The embodiment of the device according to the invention of Figure (22) consists of pressing the blade holder (PL) with an arm (12) in the manner of a press. : 7

2848278 ---

Claims (9)

  1) Device for the manufacture of seals or washers with or without central orifice, from sheets or sheets of materials (3) used for the manufacture of seals or valves, characterized in that it comprises one or more blades circular or cylindrical (2A, 2B), or any other geometric shape or circulating about an axis (5), fixed or removable. These blades (2A and 2B) are sharp and sharp knives and / or have geometric shapes such as circular, ellipsoidal, square, rectangular or any other necessary geometric shapes.   2) Device according to the first claim / 1V characterized in that the blade or blades (2A, 2B) circular or geometric defined or circulating around a fixed or removable axis (5), are fixed on one or more carriers. blades (4A, 11) having means for exerting pressure such as an apple, a crank, a lever (12). This or these blade holders have the possibility of being fixed on one of the branches (4) or parts of the device by any fastening means, such as nuts and screws, bañettes or magnetization for example.   3) Device according to claims 1 to 2 characterized in that the blade holder comprises in some cases one or central blades or not which function of 33 punching machine.   4) Device according to claims 1 to 3 characterized in that the blade or blades (2A, 2B) are fixed on the blade supports which are either formed of one or more rods for securing or fixing the blades or blade holder on the device according to the invention. LR ** s "r A The blade holder has in some cases circular tracks or slots (14A, 14B, 14C) or any shapes useful for positioning the blades (2A, 2B).   These tracks or slots (14A, 14B, 14C) circular or any shape or blades (2A, 2B) have a fastening means such as magnetization, screw threads male / female or the ba systèmenette system for example .   5) Device according to claims 1 to 4 characterized in that the blade or blades (2A, 2B) have variable dimensions or are adjustable to obtain variable dimensions.La or blades (2A, 2B) and the blade holder (PL) form A <a separate or different unit of the apparatus and are of different models and / or diameters ranging from the standard model for standard seals to the custom model for custom seals.   6) Device according to claims 1 to 5   characterized in that the device according to the invention comprises a branch or an arm of which a part forms a support (4A) of blade holder or blades and another arm of which a part is a base (1) or support for sheet or plate with joints (3).   7) Device according to claims 1 to 6 characterized in that the branch or the arm of which a part forms a support (4A) blade holder or blades and the other arm a part of which is a base (i) or support for sheet or joint plate (3) are articulated or in movement relative to each other in such a way that pressure is exerted on the sheet or plate 3 <5 attached (3) or that there is pinching or crushing of the sheet or joint plate between the base (1) and the blade (s) (2A, 2B).   In the case of manufacturing joints with one or blades circulating about a central axis, the means for gripping, pressing or crushing the sheet or the joint plate (3) are wheels (15A, 15B). , balls or any other means of exerting pressure such as a cylinder, for example in levitation and depending or not on the blade port and damped by means of springs (9A, 9B) or any means allowing the / o reminder such a rubber.   8) Device according to claims 1 to 7 characterized in that the device according to the invention comprises a device for extracting (10) seals which is, in some cases, AC compound in the manner of a hair clip or tweezers.   9) Device according to claims 1 to 8   characterized in that the device according to the invention comprises a crank or arm lying (12) hinged about an axis (5, 5A) and that this crank or this arm support the blades that make the seal.   1O) Device according to claims 1 to 9 characterized in that between the two arms (4 and 2-i 1) there is one or more springs (13) which allow the pinching of the seal or the return of the arms.