ES2318964B1 - ADJUSTABLE TENAZA. - Google Patents

Abstract

Adjustable pliers, structured in two bodies, one male (1) and another female (2) each of which defines an arm (10a), (20a) and a head (10b), (20b) that conforms the corresponding jaw of the mouth; characterized because the female body (2) defines, in its arm (20a) and from the head (20b) a mounting window (21) with at least two zones (21a), (21b) of different width; the width (a) of the zone (21a) being conjugated to the width (e1) of the head (10b) of the male body (1) and the width (b) of the zone (21b) combined with the width (e2) of the arm (10a) of the male body (1).

Description

Adjustable pliers

Already known pincers of two bodies that pivot and slide each other. More specifically, pliers are already known adjustable two bodies, each of which defines an arm and a head that forms one of the jaws of the mouth and that pivot with each other on a pivot axis, associated with one of the bodies and movable in a slot provided in the other body, in which it multiposiciona fitting at different height.

Examples of pliers of this type are, between others, the files: U9901131, EP0774324, in one technology recent, and records U195879, U8900254, US3005368, US4269089, DE2031661 and EP0116305 in an older technology.

Unresolved issues in the current state of the technique derive, fundamentally, from the weakening of the section of the pincer in your area (next to the mouth) where the force, or else the arms are arranged attached to the shaft (such as for example in files US3005368 and US4269089) or requires the mounting window to be excessively wide (excessively weakening the resistant section).

It's about achieving an adjustable pliers Detachable arms with a large sturdy section in the area of union of his arms where the force is exerted and with an easy symmetrical assembly of its arms so that in its use they do not occur premature mismatches due to the generation of force pairs unwanted

The adjustable pliers object of the invention is of the  structured in two bodies, one male and one female, each of which defines an arm and a head (which makes up the corresponding jaw of the mouth); going these bodies together each other by a joint axis and where the female arm is stepwise adjustable in a torn window of the male arm to vary the size of the pincer's mouth. Is characterized because the female body defines, in its arm and from the head which forms one of the jaws of the mouth, a window of assembly with at least two zones of different width; being the width (a) of the area of greatest width of said mounting window conjugated to the width (e1) of the head of the male body and the width (b) of the area of smaller width of said window of assembly conjugated to the width (e2) of the body arm male; so that, for mounting between bodies, it is inserted first head in the wide area of the mounting window and then the arm in the narrow area of the mounting window, until its position in which the axis of articulation is It has adjusted in the holes of the female body and adjustable staggered in the torn window of the male body.

Particularly, the mounting window is of elongated configuration and extends longitudinally to the arm starting from the area near his head.

Approximately the widths of the heads are same.

The widths of the arm area near the head and area of the mounting window are smaller than widths of the mounting window heads.

To better understand the purpose of this invention, a preferred form of practical realization, susceptible to accessory changes that do not distort its foundation.

Figure 1 represents an overview Schematic elevation of the two bodies (1), (2) of the key adjustable according to the invention, in mounting arrangement.

Figure 2 represents, in elevation -figure 2a- and in plan - figure 2b- the female body (2), with its main conformations and particularities.

Figure 3 represents a section according to indication C: C of Figure 2a.

An example of practical, non-limiting embodiment of the present invention.

The object of the invention is a new pincer adjustable, structured in two bodies, one male (1) and another female (2) each of which defines an arm (10a), (20a) and a head (10b), (20b) that make up the corresponding jaw of the mouth; going these bodies (1), (2) joined together by an articulation axis -not represented- and where the arm female (2) is adjustable stepwise in a torn window (V) of the male arm (1) to vary the size of the mouth of the pincers.

In accordance with the invention, the body female (2) defines a mounting window (21) through which the male body (1) and the female body are interlaced (2) until its final positioning (to constitute the tool).

For this, the mounting window (21) presents, at least two zones (21a), (21b) of different width and it is fulfilled in said window (21) that:

- the width (1) of the area of greatest width (21a) is conjugated with the width (el) of the head (10b) of the male body (1);

- the width (b) of the area of least width (21b) is conjugated with the width (e2) of the arm (10a) in the area that said arm (10a) forms the torn window (V) -.

In particular, the mounting window (21) provided in the female body (2) is elongated configuration -see Figure 2b- and extends longitudinally to the arm (20a) starting from the area next to his head (20b).

The said through hole (O) in which assemble the articulation shaft -not represented- actually set as two holes (O_ {1}), (O_ {2}) facing each other axially in the walls that delimit the extreme area of the part narrower (21b) of said mounting window (21) -see figure 2b-.

Approximately the widths (e_ {1}), (e_ {2}) of the heads (10b), (20b) in the area that make up the mouths are equal to each other.

The width (e_ {2}) of the arm area (10a) close to the head (10b) is smaller than those mentioned widths (e_ {1}), (e_ {2}) of the heads (10b), (20b).

With all this, for mounting between bodies (1), (2) the head (10b) is first inserted in the area (21a) of the window (21) and then the arm (10b) in the area (21b) of the window (21), until its positioning in which the axis of joint -not shown- is fitted tightly in the holes (O 1), (O 2) of the body (2) and adjustable stepwise in the window (V) of the body (1).

Claims (4)

1. Adjustable pliers, structured in two bodies, one male (1) and one female (2) each of which defines an arm (10a), (20a) and a head (10b), (20b) that conforms the corresponding jaw of the mouth; going these bodies (1), (2) joined together by an articulation shaft (3) and where the female arms (2) is adjustable stepwise in a torn window (V) of the male arm (1) to vary the size of the pincer's mouth; characterized in that the female body (2) defines, in its arm (20a) and from the head (20b) that forms one of the jaws of the mouth, a mounting window (21) with at least two zones (21a ), (21b) of different width; the width (a) of the zone (21a) being conjugated with the width (e_ {1}) of the head (10b) of the male body (1) and the width (b) of the zone (21b) conjugated with the width (e 2) of the arm (10a) of the male body (1); so that, for mounting between bodies (1), (2) the head (10b) is inserted first in the area (21a) of the window (21) and then the arm (10b) in the area (21b) of the window (21), until its position in which the articulation axis (3) is arranged adjusted in the holes (O_ {1}), (O_ {2}) of the body (2) and adjustable stepwise in the window ( V) of the body (1). 2. Adjustable pliers, according to the preceding claim, characterized in that the mounting window (21) is of elongated configuration and extends longitudinally to the arm (20a) starting from the area close to its head (20b). 3. Adjustable pliers, according to previous claims, characterized in that, approximately, the widths (e_ {1}), (e_ {2}) of the heads (10b), (20b) are equal. 4. Adjustable pliers, according to previous claims, characterized in that the widths (e_ {2) of the arm area (10a) close to the head (10b) and (b) of the area (21b) of the mounting window ( 21) are smaller than the widths (e_ {1}), (e_ {2}) of the heads (10b), (20b) and (21a) of the mounting window (21).