ES1269184U - PRESSURE REGULATION MECHANISM AND PLIERS THAT SUPPORTS IT (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Pressure regulation mechanism in jaw tools (3, 5) and articulated quadrilateral, characterized in that it comprises a regulating body (25) traversed by a plunger (17) movable against a spring (18), finished off in a stop (14), the stroke of the plunger (17) being limited by a pressure regulator (19) with adjustable position. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

PRESSURE REGULATING MECHANISM AND PLIERS THAT SUPPORTS IT

OBJECT OF THE INVENTION

A new mechanism for regulating the pressure or clamping effort applied between surfaces is recommended, as well as a new pressure pliers that carry it, within the tools called "Grip", or pressure pliers.

The preferred field of application is that of tools designed to hold, separate and tighten, preferably, not excluding it from other applications.

The plier thus constituted is a tool with a great amplitude between its jaws, adjustable in the effort or pressure exerted by the jaws or jaws. Its regulation mechanism is applicable to other tools.

The object of the present invention is to provide pressure tools that are simpler and more versatile in their use, regulation and performance; with the ability to be adjustable in their clamping pressure between their jaws or jaws, once these are approximated to the object or element to hold or tighten.

In short, a new pressure pliers have been created with a great amplitude between jaws and adjustable in pressure between them, generating a new tool to incorporate into the clamping, separation and tightening technology.

The invention is characterized by its simple but effective regulation system or mechanism, which can be easily incorporated into other existing tools, providing them with greater performance.

This new pressure pliers allows to achieve a large amplitude between jaws and fills an important gap in automatic approach tools, as will be explained later, by detecting a very substantial change in the way these tools are adjusted to their jobs, and to facilitate the same (that they do or give a solution to any eventuality at work).

The object of the invention is to provide a tool with a wide range of jaws, manual and with a simple, effective and functional method for its use and function and as well as to promote the quality of the product.

Given the applied technology, the layout, the applied ingenuity and the design, it gives the invention a great step forward with respect to the current state of the art, in particular for the applied concepts.

Furthermore, the device is high-performance and maintenance-free.

BACKGROUND OF THE INVENTION

There are many variants known to professionals and non-professionals of this type of tool. Among the most important are the "Grip" or pressure pliers, to tighten, hold, release and carry out work of all kinds. They are applicable in assemblies, welding, carpentry, small and large works, as well as for support, as work support and safety, and in particular, to present assemblies before final actions, such as welding, gluing, gluing, machining, or others...

Its use is very widespread in all sectors and includes the most diverse forms, being used mainly for repetitive fastenings, or strut forces, generally very large (where a conventional pliers could not).

All these pressure pliers are characterized, mainly, by being constituted on the basis of the articulation of several connecting rods, bars or levers that form an articulable and deformable quadrilateral. By aligning two of the sides, the quadrilateral becomes a stable triangle. During this conversion, one of the sides of the quadrilateral is rotated to exert pressure between protrusions (jaws) on two of the sides. One jaw is fixed and the other is mobile or rotatable. With this system, already very old, great efforts are achieved.

They turn out to be one of the most useful hand tools, but they require a bit of skill on the part of the user to achieve the necessary precision of effort and regulation. The vast majority of these tools are difficult to regulate. That is to say, users have to carry out their regulation by approaching or separating a regulation element, generally the shaft or head of a screw, which enters and leaves. So vary the length of one of the sides of the quadrilateral, modifying the distance between jaws in the clamping position and the arm of the lever applied.

This double modification, in a single step, is what creates the difficulty: if the jaws are brought close to the object to be tightened, when the hand tool is closed, it squeezes excessively or deforms the object. If you do not get close enough, the tool does not apply pressure, or does not hold.

Many variants of the aforementioned systems can be found on the market. The most common and generic example has been represented in Figures 1-2.

For a better understanding, in Fig. 1 and Fig. 2, sketches of a generic element and its concept are shown, as a better teaching of the state of the art concerning the invention. To continue in an analogous way (didactic) with the description of the invention.

This model of pressure pliers consists of a main (1) or fixed body on which it receives the components that compose it, acting as a fixed handle. This main body (1) is finished off in the fixed jaw (3). The main body (1) has a first axis (4) on which a movable jaw (5) is articulated, which is also articulated to the movable handle (12) by a second axis (8). At a midpoint of the movable handle (12) is a third axis (10) that connects the pressure lever (13), which rests on the end of the threaded rod (20) of the main body (1).

At the other end of the main body (1) there is a device that regulates the pressure, formed by a threaded rod (20). The advance or retreat of the threaded rod (20) defines the limit of movement of a pressure lever (13). The movement of this rod defines the tightening and the final separation of the jaws (3,5) that squeeze the object (24) to be retained.

Between the aforementioned first axis (4) and the stop of the threaded rod (20) a fictitious line or bar is generated which we will call the variable cam (6), for a better explanation of the invention later. On the movable jaw (5), between the first axis (4) and the second axis (8) a fictitious line or bar is generated which we will call the tilting cam (9). In the movable handle (12), between the second axis (8) and the third axis (10) a fictitious line is defined that we will call the actuator cam (11).

Finally and to complete the deformable articulated quadrilateral, an imaginary line is defined between the third axis (10) and the part of the pressure lever (13) that collides with the threaded rod (20). We will call this line the pressure cam (15).

These four cams (6,9,11,15) form the quadrilateral and, when the last two cams are aligned, they form the stable triangle.

Likewise, there are also other pressure pliers, more sophisticated, but still based on the previous principle, albeit in a more elaborate, sophisticated and ingenious way. These remedy or mitigate the aforementioned drawback, sometimes in very satisfactory ways.

Of the aforementioned systems, a multitude of them can be found on the market, as well as a multitude of variants, and the most diverse registers. The most relevant are: US 6450070, US 20040055429, US 2564585, CN 2894945Y, US 2751801, US 3600986, US 6591719, US 2751801, US 20060174734, US 6279431 and US 6199458.

In each and every one of them it is appreciated that the amplitude between clamping or tightening jaws is very limited, on the one hand. On the other hand, it is observed that the inventions and gadgets generated to facilitate their use, are too complicated and therefore of high price and ease of breakdown.

The proposed invention improves very considerably everything found and known that revolves around what has been explained. A uniformity of operation is achieved, which gives the invention, as an element of the highest efficiency and performance, with the maximum simplicity and adaptable to other tools.

In no case are such simple regulation systems known for its configuration.

BRIEF DESCRIPTION OF THE INVENTION.

The present invention therefore recommends a new manual tool such as pressure grip or "Grip", whose embodiments allow to achieve a great amplitude between jaws, which is easy to use and with the added feature of being adjustable in pressure in a predetermined and automatic way. .

The aim is to provide the market with a new, unique manual tool, pressure alicant or other similar ones, that solve and satisfy the deficiencies detected in the tools that precede it, and a new tool that can be incorporated into the technology of clamping, separation and the tightening. These tools carry a new pressure regulating mechanism, applicable in pre-existing tools for updating.

Now, with the proposed invention, the pressure or force desired by the jaws against the object can be regulated at will, by modifying the relative position of a pressure regulator, within a regulating body.

Another version, no less important, but much less widespread, of the invention results from separating, instead of tightening, arranging for this the jaws in an opening arrangement, oriented in opposite directions, obtaining a new manual pressure expansion tool adjustable.

The pressure regulation mechanism, applicable in jaw tools and based on an articulated quadrilateral mechanism, comprises a regulating body, traversed by a piston movable against a spring. The plunger is capped. Plunger travel is limited by an adjustable position pressure regulator. The pressure regulator can be, for example, a stem threaded to a through hole through the regulator body.

The mechanism must belong to the tool or be able to be attached to it, by clipping, welding, threading ... To do this, in one embodiment it belongs to it, and in another, it has a connection thread to the tool.

The invention is also a pressure pliers, with a main body articulated to a movable handle through a movable jaw. The movable handle is freely rotatably connected to a pressure lever supported by the front adjustment mechanism.

The main body can comprise, for example, a fixed jaw. In another embodiment, it comprises a coplanar extension, at an angle (for example, orthogonal) and arising from a point close to the movable jaw. A fixed jaw can be placed on this extension, in this case it can be located at any point on the extension and can be locked or fixed in that position.

The extension can be essentially cylindrical, for use in multi-perforated tables, or a flat plate, and any other resistant section.

The system is capable of being recovered to the initial position by any means that forces the system to return to become a deformable quadrilateral and therefore release the object to be held, for example, by means of an unlocking lever such as those known in The technique. It may also be possible to fully release the throttle mechanism, so that the pressure lever is loose.

The invention that is advocated very satisfactorily solves the needs of a pressure plier, based on a simple, highly efficient solution.

Issues that increase and improve each and every one of the benefits of the systems developed so far, giving a maximum value, much higher than what is currently known.

Other variants are described in the remainder of the specification.

Description of the drawings

For which and with the idea of complementing the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where with an illustrative nature and not limiting, the following has been represented:

Figure 1.- View of a pressure pliers or generic “Grip” and its didactic concept, open in approach to the object to be tightened

Figure 2.- View of a pressure pliers or generic “Grip” and its didactic concept, closed in pressure, dumping its maximum pressure on the object, or deforming or crushing it

Figure 3.- View of the pliers with the invention incorporated, in its version of great amplitude, open

Figure 4.- View of the pliers with the invention incorporated, in its version of great amplitude, closed, with the pressure regulated at will

Figure 5.- View of the pliers in its large version, for multi-perforated tables, closed, with the pressure regulated at will

Figure 6.- View of different versions of pliers, (A) with tilting head, (B) with double tilting head, (C) with additional pressure regulator, (D) opening pliers, as other examples.

Figure 7.- View of the adaptation of the pressure regulation for other tools, in two versions, and represented in open position (A, C) and in tightening position (B, D).

Figure 8.- View of the preferred tool of great amplitude between jaws

Figure 9.- View of the preferred tool, as adjustable and automatic pressure tightening for multi-perforated tables, and the like

Figure 10.- Views of a new embodiment: (A) plunger, (B) starting position, (C) position in use

Figure 11.- Views of another embodiment example (A) starting position, (B) in use position

Figure 12 - Views of a last example of embodiment (A) starting position, (B) in use position

Where the various parts or components are referenced:

1- Main body

2- Extension

3- Fixed clamp

4- First axis

5- Mobile jaw

6- Variable cam

7- Brake

8- Second axis

9- Tilting cam

10- Third axis

11- Actuator cam

12- Mobile handle

13- Pressure lever

14- Stop

15- Pressure cam

17- Plunger

18- Spring

19- Pressure regulator

20- Threaded stem

21- Unlocking lever

24- Object (to hold)

25- Regulator body

27- Multi-perforated table

28- Highlight

29- Regulation mechanism (pressure)

30- Tilting head

36- Threading

37- Inner stop

PREFERRED EMBODIMENT OF THE INVENTION

An embodiment of the invention will be briefly described below, as an illustrative and non-limiting example thereof.

In view of the figures outlined, it can be seen how the invention advocates a multitude of new manual tools, consisting of pressure or grip pliers, for pressure regulation, prior to use, an issue not provided for in these tools in their basic state.

For a better understanding, a large-amplitude clamping between jaws with regulation of the pressure to be exerted between jaws (3,5) has been represented in Fig. 3, and 4, as an industrial and practical way. This figures maintains the previous nomenclatures and references. The preferred embodiment consists of a main body (1), fixed, to which an orthogonal extension (2) has been added in the form of a regular plate. In this extension (2) the fixed jaw (3) slides. In this case, the fixed jaw (3) is movable to be fixed in different positions, so that its distance from the longitudinal axis of the main body (1) is variable.

The fixed jaw (3) has a brake (7), such as a locking element, a throttle, etc. to stop it in the desired position of the extension (2). Each jaw (3,5) can be finished off on a clamping rod, as can be seen, for example, in figure 8.

The movable jaw (5) is coupled to the main body (1) by a first axis (4) close to the base of the extension (2). This movable jaw (5) is coupled by a second shaft (8), parallel to the first axis (4), to the movable handle (12). The movable handle (12) supports the pressure lever (13) by a third axis (10) that ends in the adjustment mechanism (29).

The jaws (3,5), at least one, can be equipped with tilting heads (30) to give them versatility against non-coplanar surfaces.

The regulation mechanism (29) consists of a piston (17), finished off in the stop (14) and kept in tension by a spring (18) or accumulator. The plunger (17) is capable of moving inside a regulating body (25), against the spring (18), until it reaches a pressure regulator (19) with an adjustable position. This pressure regulator (19) is, consequently, who defines the total movement of the plunger (17) and therefore the pressure of the jaws (3,5). A little or no stroke of the plunger (17) means a very high pressure in the jaws (3,5), and a greater stroke means less pressure, the minimum being that corresponding to the total compression of the spring (18).

The pivoting quadrilateral, articulated and deformable, is formed by the pressure lever (13), the movable handle (12), the movable jaw (5) and the main body (1). Its movement is regulated by the regulation mechanism (29). To do this, the pressure lever (13) rests on the stop (14) at the end of the piston (17) of the adjustment mechanism (29). The pressure lever (13) pushes the plunger (17) against the spring (18).

To form the articulable and deformable quadrilateral, the cam (15), in turn, is finished off by contact on the stop (14) of the plunger (17). To maintain this contact and thus the quadrilateral (corresponding to the open tool), a spring located between two vertices, or non-consecutive axes, of the quadrilateral can be arranged, or another mechanism that ensures the open position. For example, a torsion spring placed on either axis (4, 8, 10), a compression spring between the first axis (4) and the third axis (10), or a tension spring between the second axis ( 8) and the main body (1), which corresponds to the most usual solution. The objective is to keep the tool open and, therefore, formed the quadrilateral and in turn maintain the contact of the pressure lever (13), in the stop (14).

To release the tool, an unlocking lever (21) has been provided, which in its operation against the main body (1) separates the actuator or movable handle (12), and removes the stable triangle to convert it into the deformable articulated quadrilateral initial and spring from the previous paragraph helps to do this.

The tool can be complemented with a spring, or other similar device, to automatically bring the fixed jaw (3) closer to the mobile jaw (5).

In a second embodiment, the extension (2) is a cylindrical element for use in any of the multiple holes of a multi-perforated table (27), it has been represented in Fig. 5. In this case, the fixed jaw (3) is replaced by the multi-perforated table (27) itself. In this case, the tool acts as a quick, automatic squeeze, since the pressure to be exerted will be that provided by the position occupied by the pressure regulator (19) relative to the regulating body (25).

The extension (2) can take any cross section to adapt to the shape of the holes in the multi-perforated table (27), so that it is totally effective.

For a better location of the previous tool, equidistant or not peripheral markings have been provided in the extension (2), referenced or not, to quickly locate a previous arrangement and collaborate with greater traceability of the assemblies.

In a third embodiment, the regulation mechanism (29) becomes independent as shown in figures 7 and 10. This regulation mechanism (29) is an independent object that can be applied to any pliers or similar tool. It comprises the plunger (17), the stop (14), the regulating body (25), the pressure regulator (19) and the spring (18). It is finished in a thread (36), or similar so that it can be attached to any tool or pliers to replace the threaded rod (20) of the state of the art, and like it, it will be in charge, by regulating the threaded finish, of the initial regulation of the opening of the jaws (3, 5), just as the threaded rod (20) would do.

Operation of the hand tool is simple and intuitive. The fixed jaw (3) is brought against the movable jaw (5) until both make abutment or contact with the object (24) to hold or tighten. The mobile handle (12) is manually activated against the main body (1), (close the tool), so the quadrilateral tends to deform, the mobile jaw (5) abuts the object (24) and the fixed jaw (3) tends to rotate moment in which it produces the rotation of the brake (7) that blocks it. The pressure lever (13) pushes the plunger (17) against the spring.

The pressure cams (15) and actuator cam (11) tend to align, to form the stable triangle (the distance between the second axis (8) of the movable jaw (5) and the stop (14) increases), therefore that the tilting cam (9) rotates when the plunger (17) abuts the pressure regulator (19), making the desired or regulated pressure of the tool, until the alignment of the cams (15 and 11) is completed.

This is where the pressure regulation of the tool is located.

If the pressure regulator (19) is fully inserted into the regulator body (25) and the movement of the piston (17) is prevented, the piston (17) will not move and the system will put all the force on the tilting of the movable jaw (5) and object (24).

On the other hand, when the position of the pressure regulator (19) is less inserted in the regulator body (further from the stop (14)) the total movement of the piston (17) is allowed, and the spring (18) absorbs the travel in its compression, so that the pressure of the tool will correspond only to its force (that of the spring). The regulating body (25) preferably belongs to the tool at the end of the main body (1) and, in the third embodiment, it is movable longitudinally with respect to the main body (1).

Therefore, in intermediate positions of the regulator (19), (from being fully inserted to being at the limit of the stroke of the piston (17)), the force of the tool is distributed between the total of the tilting and that of the spring (18); so it is the displacement of the regulator (19), which marks and defines the force of the tool.

In a fourth embodiment, a variant of the regulation mechanism (29) is shown, usable in the same way as in all the cases referenced above. It consists of a piston (17), finished off at the stop (14) and kept in tension by the spring (18) or accumulator. The piston (17) is capable of moving inside a regulating body (25), against the spring (18), always until it reaches a shoulder (28) of the piston (17) of the regulating body (25), where it stops and blocks against it, limiting its movement.

When the piston (17) stops or blocks its projection (28) with the regulating body (25), the tool dumps all the missing pressure, to convert the deformable articulated quadrilateral into a stable triangle, on the object (24) to hold.

If the stable triangle of the cams is made, the force applied to the jaws (3,5) is only that of the compressed spring (18). If there is no travel when it is blocked with the stop (14), the effort is increased along the entire travel of the movable handle (12) that is missing until reaching the maximum of the tool.

Therefore, with the simple movement of an adjustable position pressure regulator (19), the effective length of the plunger (17) is controlled up to the shoulder (28), that is, the part of the plunger (17) that remains to be inserted. in the regulator body (25). Therefore, the pressure that the tool will exert is controlled once the jaws (3,5) have abutted on the object (24) to be clamped.

The pressure regulator (19) can be of different types, as can be seen in the figures. For example, it can be a stud or threaded rod with housing at one end for an element that moves it, an Allen key, a screwdriver ... whose position within the regulating body (25) defines the maximum movement of the plunger (17). In the case of figure 10, it is a nut coupled to the plunger until it collides with an internal stop (37). It is, in short, any element that limits the stroke of the plunger (17).

This pressure regulator (19) is, consequently, who defines the total movement of the plunger (17) and therefore the pressure of the jaws (3,5). A little or no stroke of the plunger (17) means a very high pressure in the jaws (3,5), and a greater stroke means lower pressure, the minimum being corresponding to the total compression of the spring (18) when the shoulder ( 28) does not reach the regulating body (25).

The regulation mechanism (29) is shown in figure 10. This regulation mechanism (29) can also be an independent object that can be applied to any pliers or similar tool. It comprises the plunger (17), the stop (14), the spring (18). the pressure regulator (19) and regulator body (25), which is finished with a thread, or similar, so that it can be coupled to any tool or pliers to replace the threaded rod (20) of the state of the art, and like it , will be in charge, through the regulation of the threaded finish, of the initial regulation of the opening of the jaws (3,5), just as the threaded rod (20) would do.

In a fifth embodiment, and for much better understanding, a variant of the regulation mechanism (29) is shown, usable in the same way as in all the cases referenced above. It consists of a plunger (17), finished off at the top (14) and held in tension by the spring (18) or accumulator. The piston (17) is capable of moving inside the regulator body (25), against the spring (18), always until it reaches the inside stop (37) of the pressure regulator (19), where it stops and blocks against him, limiting his movement.

In summary, the pressure exerted by the jaws (3,5) between them, in the novel tool, is inversely proportional to the displacement made, or absorbed by the plunger (17), when closing the tool, and this is limited by regulators of pressure (19), or others ... If the plunger (17) moves a lot inside the regulating body (25), the pressure between jaws (3 and 5) is minimal. If the piston (17) moves little within the regulating body (25), the pressure between jaws (3 and 5) is maximum.

Constructively, this has been decided to integrate in a preferential but non-limiting way in the figures shown.

All this done physically, in its maximum simplicity in a compact, simple, economic and maintenance-free way.

Claims (1)

1- Pressure regulation mechanism in jaw tools (3,5) and articulated quadrilateral, characterized in that it comprises a regulating body (25) traversed by a plunger (17) movable against a spring (18), finished in a stop (14), the stroke of the plunger (17) being limited by a pressure regulator (19) with an adjustable position. 2- Pressure regulation mechanism, according to claim 1, characterized in that it comprises a threading or similar connection to a tool. 3- Pressure pliers, with a main body (1) articulated to a movable handle (12) through a movable jaw (5), the movable handle (12) being in turn connected with freedom of rotation to a lever of pressure (13) characterized in that the pressure lever (13) is supported on the pressure regulation mechanism (29) of claim 1, coupled to the free end of the main body (1). 4- Pressure pliers according to claim 3, characterized in that it comprises a fixed jaw (3) on the main body (1). 5- Pressure pliers according to claim 3, characterized in that the main body (1) comprises an extension (2) at an angle, close to its connection to the movable jaw (5). 6- Pressure pliers, according to claim 5, characterized in that the extension (2) is cylindrical. 7- Pressure pliers, according to claims 4 and 5, characterized in that the fixed jaw (3) is movable and lockable along the extension (2). 8. Pressure pliers according to claim 5, characterized in that the extension (2) is orthogonal. 9- Pressure pliers according to claim 3 or 4, characterized in that at least one jaw (3,5) comprises a tilting head (30). 10. Pressure pliers according to claim 3, characterized in that it comprises an unlocking lever (21) of the movable handle (12). 11- Pressure pliers according to claim 4, characterized in that it comprises a spring or the like for approaching the jaws (3,5). 12. Pressure pliers according to claim 4, characterized in that the jaws (3,5) are oriented in opposite directions.