ES1096105U - Manual tool peeling fiber optic cables (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Manual peeling fiber optic cable tool, for cutting or peeling an extreme portion of a fiber optic cable or other equivalent protective cover, whose tool is constituted by two semi-bodies (1, 2; 15, 15') mutually coupled and operative with respect to each other, characterized in that the semi-bodies (1, 2) consist of rigid blocks, of a general prismatic shape, of equal dimensions, in which: a first half-body (1) is constructed so as to have respective depressions (1a, 1b) in relation to its external upper surface, each depression being internally delimited by two surfaces (S1, S2) inclined converging in a downward direction towards an intermediate transverse line, and incorporating a (S1) of these surfaces blades (5) of peeling, capable of being locked positionally by tightening of respective screws (6), and the position of each blade (5) being adjustable by means of a respective screw (7) associated with one end of the blade and accessed through a corresponding hole (9) made through a chamfered front strip (1c) made in a corresponding transverse edge of said half-body (1); wherein both depressions (1a, 1b) determine the formation of a central longitudinal pavilion (3) that includes a vertically through hole (4) that at the lower end opens into a substantially flat central longitudinal strip (10), and where they have formed pairs of other blind holes (12; 13) that open towards the lower surface of this first half-body (1) in longitudinally aligned positions on both sides of said vertical hole (4) passing along said strip (10) intermediate longitudinal, wherein said first semi-body (1) further includes a number of longitudinal channels (8) dug into its internal surface, of semicircular section and of varying diameters, inside each of which the cutting end protrudes (5a) of a respective one of the blades (5); and where the second half-body (2) includes a number of longitudinal channels (8'), as many as the first half-body (1), in mutually opposite positions with those of the first and with semicircular profiles and respectively equivalent diameters, which together with said channels (8) of the first semi-body provide housings to house cables of different sections during the peeling operation, also counting this second semi-body (2) with a central longitudinal strip (10'), substantially flat, in a position facing the central longitudinal strip (10) of the first semi-body under the flag (3), emerging from said strip (10') intermediate a threaded rod (11) with a diametral dimension apt to be received inside the through hole (4) of the first half-body (1) and with a longitudinal dimension sufficient to protrude slightly outside the upper end of the body. central vertical hole (4) in the condition of both bodies (1, 2) mutually coupled, respective lugs (12') on both sides of the threaded rod (11) and aligned with the same dimensioned to partially lodge in the pair of blind holes (12) of the first half-body (1), and two recovery springs (13') positioned near the ends of said flat longitudinal strip (10) and also longitudinally aligned with the rest of the emergent components. it is from said strip dimensioned to partially lodge inside the pair of blind holes (13) of the first half-body (1) in the tool condition mounted with both half-bodies (1, 2) mutually coupled, both semi-bodies (1, 2) being interconnectable by means of a removable nut (14) threaded to the corresponding end of the threaded rod (11) after reaching the outside through said vertical hole (4) through. (Machine-translation by Google Translate, not legally binding)

Description

Object of the Invention

The present invention relates to a fiber optic cable stripping hand tool, which provides essential novelty features and notable advantages over known and used means for the same purposes in the current state of the art.

More particularly, the invention proposes the construction of a manual use tool designed primarily, but not exclusively, for stripping portions of fiber optic cable during the installation and / or repair of this type of optical conductors. In one embodiment, the tool consists of two half-bodies that can be coupled together and that can be mutually approached by manual pressure exerted from the outside against the action of internal recovery springs, of which both semi-bodies include several channels respectively facing each other, with different diameters for the reception of stripping cables with similarly different sections, and with adjustable positioning blades in charge of the cutting action. In other embodiments, the two tool bodies can be articulated with each other in an intermediate position, such that at one end they include the cutting tool and the opposite end is adapted for easy and comfortable support of the user's fingers

The scope of the invention is obviously included within the industrial sector dedicated to the manufacture of tools and tools

auxiliary, for professional purposes.

Background and Summary of the Invention

Those skilled in the art are aware of the needs existing in the state of the art when installation and / or repair of fiber optic or other cables of an equivalent nature are being carried out. In fact, when work of this type is carried out, the need to make joints between the fibers is presented continuously, either in order to make splices that allow the installation to continue or in order to provide shunts, for that specially designed connectors are used for this purpose. In either case, whether it is a splice or if it is a branch, the joint made always requires the provision of a "bare" portion at the end of the cable, that is, a portion in which the outer protective cover has been previously removed.

Previously, the operation of stripping the cable was often carried out with very rudimentary means that often caused even the breakage of the fiber, while on other occasions certain utensils were used that generally used to have a high price and therefore meant an expense Important for the installer.

In an attempt to solve these unfavorable situations for fiber optic cable installers and provide effective solutions for the realization of these works, some tools and tools have already been developed that have improved the operating conditions associated with the handling of these cables. . A clear example is the Utility Models

Spanish ES-l 052 457 and ES-l 052 458, of the same holder as the present invention, and which at the time constituted a significant advance over the tools and instruments existing up to that moment in the state of the art and used for the specified purposes.

However, despite the improvements in operating conditions that led to the creation of the tools described in both of the aforementioned documents, it has revealed the need to include certain improvements that provide a user with a better ergonomics of the tool for easier operation, and also allow the use of the tool in a more comfortable, fast and intuitive way.

In view of the foregoing, the present invention has as its main objective the creation of a manual use tool that facilitates an operator, and allows it to speed up, the stripping operations of fiber optic cables and equivalent during installation work and / or repair. This objective has been fully achieved with the cable stripping tool that will be described in the following, whose main characteristics are included in the characterizing portion of the attached claim 1.

In a first embodiment of the fiber optic cable stripping hand tool, it has been conceived on the basis of two semi-bodies, generally quadrangular prismatic, mutually coupled to each other, of which a semi-upper body (according to the position shown in the accompanying drawings) has several longitudinal channels of semicircular profile and different diameters, and includes, at the top (according to the position shown in the drawing), two depressions of

descending and converging surfaces towards an intermediate transverse line, formed on both sides of a central longitudinal pavilion. On one of the surfaces of each depression a variable number of cutting blades are positioned (as many as semicircular longitudinal channels have been provided), these blades being variable positioning by virtue of respective clamping screws, and in such a way that the end cutting of each of the blades partially appears through a respective longitudinal channel in a

extension that can be adjusted in accordance with the user's needs. The mentioned pavilion

Longitudinal center is provided with a through vertical hole (according to the representation that appears in the drawings), in a centered position. On the inner side, the portion corresponding to said central longitudinal pavilion shows the formation of four other blind holes, mutually aligned with the central according to the

address

longitudinal, destined to to receive others

elements

partners to the second semi-cu erpo Y that be

will describe later.

The positional adjustment of each of the cutting blades can be precisely adjusted thanks to the use of a respective displacement screw associated with the end of each blade opposite the cutting end. These screws are accessible from the outside through a respective hole formed in a chamfered section of the corresponding transverse edge of the semi-body that incorporates them.

The lower half-body (according to the representation of the drawings), that is to say the opposite of the one just described, consists of a block of dimensions equivalent to those of the first half-body, made of

so that on the face facing said first half-body it has several longitudinal channels, in positions facing the channels of the first half-body, and with respectively equal diameters, so that between the channels of both half-bodies there are housings for the insertion of the cables whose ends it is desired to strip, the user being able to choose the housing that best adapts dimensionally to the characteristics of the cable. Additionally, this lower half-body includes, projected from the inner face facing, and adjacent to, the inner face of the first half-body, two rigid lugs in correspondingly facing positions with two of the blind holes of the first half-body, and two compression springs in positions facing the other two blind holes of the upper half body. In the central position it includes a threaded rod, of appropriate diameter to pass through the through hole of the central longitudinal pavilion of the first half-body, and admit the fixation of both semi-bodies by applying a nut to the end of the threaded rod, thus keeping both bodies linked between Yes, against the action of the springs that drives them in the sense of separation of the springs, allowing enough space between the two for the comfortable introduction / removal of the cables to be stripped.

In an alternative version of the fiber optic cable stripping hand tool according to the invention, the two halves (or semi-bodies) of the tool are formed as substantially flat plates, punched out with a predetermined configuration, and articulated with each other by middle of paths integral flat sections emerging orthogonally from the internal faces respectively facing of both half bodies and directed according to the longitudinal direction in

relationship of mutual adjacency between the two, linked together by the application of a screw or other conventional means of connection. At one end of the tool, one of the semi-bodies ends in an orthogonal support portion of a variable positioning blade by means of a clamping screw accessible from the outside, while in a position facing the position of the blade, the other half-body has a porclone conformed in addition to the first and equipped with a longitudinal recess of section "V" to support the end portion of the cable to be stripped, in whose recess there is a transverse groove, also with a "V" profile, facing the end of the blade, to partially house the end of the blade during the cutting operation. At the opposite end of the blade, the flat plates of both semi-bodies have a substantial widening towards the same side of the tool, thereby providing a wide surface area of support of the user's fingers, while close to this second position. extreme and associated with the internal faces of each semi-body, the

training

from projections to mode from big tits mutually

faced,

for the rec eption from a dock from

Recovery

whose tension may be regulated by he

user using a nut coupled to one of these threaded surface studs. On the other side of the pivotal joint sections in the longitudinal direction, one of the half-bodies has an integral emergent support portion, and the other half-body has a hole facing the said support portion, in which it has been a screw adjustable from the outside is housed to limit the approach relationship between both bodies by the cutting end, thereby providing the user with the ability to regulate the tool for easy and convenient cutting of the cable sheath with

Different diameters

Brief Description of the Drawings

These and other features and advantages of the invention will become more clearly apparent from the following detailed description of a preferred embodiment thereof, given only by way of illustration and not limitation, with reference to the accompanying drawings , in which:

Figure 1 shows representations (a) (c) in perspective from above, front elevation and bottom floor, respectively, of a first semi-body (mentioned

too

how semi-body higher) from a tool

manual

from bare from cables from fiber optics according to the

present invention;

Figure 2 illustrates a schematic perspective view from above of a second semi-body

(also mentioned as the lower half-body) of the tool of the invention complementary to the first half-body shown in Figure 1;

Figure 3 illustrates both schematic views (a) and

(b), in perspective from above and the side elevation, of the same fiber optic cable stripping hand tool of the previous Figures, in the condition of a tool mounted and ready for use;

Figure 4 presents several schematic representations (a) (d) of an alternative version of manual tool for stripping fiber optic cables and equivalent, and

Figure 5 is a schematic illustration of a tool

It accompanies both versions of the manual stripping tool of fiber optic cables, designed to drive the adjustment screws incorporated by the tool.

Description of a Preferred Reaction Form

As mentioned above, the detailed description of the preferred embodiment of the object of the invention will be carried out in the following with the help of the attached drawings, through which they use the same numerical references to designate the same or equivalent parts. Thus, in the first place according to the representations of Figure 1 of the drawings, a schematic perspective view of a first semi-body (or semi-upper body) of the cable stripping hand tool is shown in the representation (a) , indicated in general with the numerical reference 1, a front elevation view, corresponding to the representation (b), of this same semi-body 1, and a bottom plan view of this same semi-body of manual cable stripping tool fiber optic of the invention, indicated generally with the numerical reference

2.

According

be sample, he semi-body one consists in a

block

rigid from shape general prismatic in he that be

observe

the formation of paths cavities, indicated in

general as the y lb, on both sides of the constituent block of the semi-body, which give rise to the formation of a central pavilion 3, which divides the surface of the half body into two substantially equal portions, and which includes an orifice 4 in intermediate position , vertically through.

Each of the lateral depressions is constituted by two inclined surfaces, being visible those of a

of said depressions in the representation (to, in which said inclined surfaces have been designated as SI and S2. These inclined surfaces are convergent as they descend towards an intermediate transverse line, and on one of the SI surfaces of each of the lateral cavities the and lb there are blades 5 positionally interlocked by means of a respective screw 6, these screws being threaded in corresponding holes of the semi-body block itself and their heads being accessible from the outside to facilitate the tightening and releasing operations, as appropriate. On one of the transverse edges, referred to herein as the leading edge for identification purposes, there is a chamfered transverse portion, designated as 1c, in which through holes have been made in positions facing the corresponding ends of each of the blades 5 and coplanar with said ends, threaded inside for housing a screw 7 associated respectively to each of the blades 5 and intended for positional adjustment of the corresponding blade prior to the definitive interlocking of the blade by tightening the respective screw 6.

Additionally, the semi-body 1 includes in its internal surface, that is, the surface destined to face adjacently with the internal surface of the semi-body 2, longitudinal channels 8 excavated along its total length, semicircular profile and sizes different to accommodate cables also of different sections. In the representation they have shown

four

channels 8 longitudinal, but East number is

only

indicative, being able to vary between other

quantities

different from agreement with every need

practice.

In representation (b) a front elevation view of the semi-body 1 of this embodiment of a manual stripping tool according to the present invention appears. In this representation, the relative position of the different semicircular canals 8 excavated in its lower surface can be appreciated, as well as the position of successive holes 9 that house said screws 7 for positional adjustment of the blades 5. In the same way, the representation allows to appreciate the appearance of the cutting ends 5a of each of the blades 5 inside each of the channels 8, in order to cut the covers of the fiber optic or other cables, that the user lodges inside that channel during the cutting operation. This provision can be seen more clearly in the view of representation

(c) corresponding to the plant or lower surface of the semi-body 1, where the construction details corresponding to the position of the cutting ends 5a of each blade 5 are shown, as well as the openings corresponding to the holes where the holes are housed. screws 6 for tightening and immobilizing the blades 6.

Additionally, the bottom plan view of the representation (c) illustrates the formation of a central longitudinal strip 10, substantially flat, flanked on both sides by the channels 8, and showing how these longitudinal channels affect the full length of the semi- body 1. The aforementioned strip 10 includes, in relation to longitudinal alignment with the through vertical hole 4 that appears in a centered position and on both sides thereof, the formation of other blind holes such as a first pair of holes 12 intended to receive the end corresponding of a pair of studs associated to the lower half-body 2 and which will be discussed later, and a pair of holes 13, closer to the edges

cross-sections of the semi-body 1, and intended to receive the corresponding end of a pair of springs associated with the semi-body 2 infer, as will be seen later in relation to Figure 2.

Referring now to Figure 2 of the drawings, a perspective representation of the second half-body 2 (or lower half-body) of the manual stripping tool of the present invention, designed for corresponding engagement with the first semi, has been illustrated. -body 1 when the tool is mounted. As can be seen in the illustrated representation, the base or its upper surface of this second half-body 2 has the formation of channels 8 'longitudinally excavated in the semi-body block, as many as those present in the first half-body 1 and in positions correspondingly to those of the latter, also of semicircular profile and correspondingly variable diameters, intended to form together with the channels of the first half body 1 housings for the positioning of the cables whose covers are to be cut or stripped. Logically, the use of any one of the pairs of channels 88 'will be chosen according to the diameter or section of the cable cover to be stripped.

In the intermediate position, the formation of a substantially longitudinal central strip 10 'appears, from which an threaded rod 11 orthogonally emerges in a position facing the through vertical hole 4 of the first half-body 1, of appropriate diameter to accommodate in said through hole and of sufficient length to protrude slightly through the upper mouth of said hole; a pair of stubs 12 'rigid, on both sides of the threaded rod 11 and aligned longitudinally with it, in corresponding positions facing the holes

blinds 12 of the first semi-body 1 and sized to be housed inside the latter in the condition of a mounted tool, and a pair of recovery springs 13 'next to both ends of said longitudinal strip 10' and also aligned with the previous ones , intended to couple their upper ends inside the blind holes 13 of the first half-body 1 in the condition of the assembled tool.

In accordance with Figure 3 of the drawings, two schematic views (a) and (b) of the manual stripping tool of Figures 1 and 2 have been shown, in the assembled condition and ready for use. The representation

(a), in perspective, allows to see the formation of the tool with both semi-bodies 1, 2 mutually linked to each other by means of a nut 14 coupled to the corresponding protruding end portion of the threaded rod 11 and with both semi-bodies 1, 2 separated from each other by virtue of the action of both recovery springs 13 ', visible in the representation (b) in side elevation. The channels 8 of the upper half-body 1 appear, as has been said, to the channels 8 'of the lower half-body 2, corresponding to each other by virtue of their respective diameters, and the holes 9 for access to the screws 7 are also visible of positional adjustment of the blades 5 located inside said holes 9.

Also, in the side elevation view shown in the representation (b), the threaded rod components 11, lugs 12 'and springs 13' are also visible, which in mutually aligned positions along the central longitudinal axis of the tool and partially inserted inside the blind holes described in relation to the first half-body 1, allow

that the user presses on both semi-bodies and moves them, as indicated by the arrow Fl in the direction of approach when a cutting operation is to be performed

or stripped on the cover of a cable, and that the recovery springs 13 'move them in the direction of distance indicated also by the arrow Fl. The nut 14 limits the amount of distance between the upper half-body 1 with respect to the semi - lower body 2 due to the action of the recovery springs 13 '.

Referring now to Figure 4 of the drawings, a representation of an alternative embodiment of a cable stripping hand tool can be seen which, like the tool of the first version already described, is constituted by two semi-bodies 15, 15 ' which in this case consist of substantially flat plates, of rigid material, superimposed on each other, which have a respective intermediate orthogonal section 16, 16 ', these sections being integral with the semi-body to which they belong, consisting of projected equally flat portions from the mutually facing internal faces of each longitudinally directed semi-body and respectively displaced on both sides of the longitudinal axis to reach relative adjacency positions that allow its pivotal linkage by means of a screw 17. On a first end, a semi-body 15 includes an orthogonal support portion 18 for the placement of a cutter blade 19 of the cover a of the cable to be stripped (not visible in the Figure), positionally locked by means of a screw 26 threaded into the support portion 18 and easily accessible to the user, and the other half-body 15 'includes an orthogonal support portion 20 corresponding, with a channel 21 of profile in av "directed according to the longitudinal axis, and with a transverse groove 22 also of profile in" V "occupying

a position facing the blade 19 of the first half body 15. In a certain position between the pivoting sections 16-16 'and the cutting end of the tool, there is a solid formation 23, integral with a semi-body 15', while that in a correspondingly opposite position the other half-body 15 includes a through hole 24, of internal threaded surface, which houses a screw 25 that the user can access from the outside, and whose inner end supports against the solid formation 23, limiting with this is the approach between both semi-bodies 15, 15 '.

On the other hand, between both pivoting sections 16, 16 'and the opposite end to the cutting one, the incorporation of a recovery spring 27 is provided, which at both ends is set in integral bolts respectively with both semi-bodies 15, 15 'And that pushes each half-body with respect to the other in the pivoting direction that determines the application of the cutting blade 19 against the groove 22 made in the supporting portion 20 of the second half-body. A nut 28, coupled to the external threaded surface of one of said lugs, allows the user to regulate the tension of the spring 27 according to the needs of the cutting operation to be performed.

Finally, referring to Figure 5 of the drawings, a schematic perspective view of a tool that accompanies and complements both tool versions of the present invention has been shown. This tool consists of a filiform longitudinal element, constituted by a body 29 of reduced diameter to allow easy handling with the fingers of a user's hand, which at the end includes a screwed means 30 sized to allow it to be inserted through holes such as the holes 9 of the semi-body 1 of Figure 1 of the drawings, or through the hole 24 of the tool version of Figure 4 of the drawings, in order to make a proper positional adjustment of each of the screws 7 or 25 respectively housed in said holes. At the opposite end, the tool 29 ends in a hook, thereby providing additional utility in relation to the recovery and removal of cable sheath portions or any other undesirable material that may remain inside the tools after the stripping and cutting operations of the cable cover.

It is not considered necessary to make the content of the present description more extensive so that a person skilled in the art can understand its scope and the advantages derived therefrom, as well as carry out the practical realization of its object.

Notwithstanding the foregoing, and since the description made corresponds only to a preferred embodiment, it will be understood that within its essentiality multiple modifications and variations of detail may be introduced, also within the scope of the invention, and that in particular they may to affect

to

features such how the shape, he size or the

materials

from manufacturing, or any other that no

alter

the invention according he has been described Y according be

define

in the claims that follow.

Claims (3)

1.-Manual fiber optic cable stripping tool, for cutting or stripping an end portion of a fiber optic cable's protective cover or other equivalent, whose tool consists of two semi-bodies (1, 2; 15, 15 ') mutually coupled and operational with respect to each other, characterized

why

the semi-bodies (one, 2) consist in blocks

rigid

from shape general prismatic from equals

dimensions,

in those who:

a

first semi-body (one) is constructed from mode that

it presents depressions (la, lb) in relation to its upper outer surface, each depression being internally bounded by two surfaces (Sl, S2) inclined that converge in a downward direction towards an intermediate transverse line, and incorporating one (Sl) of these surfaces stripping blades (5), capable of being positionally interlocked by tightening of respective screws (6), and being the position of each blade ( 5) adjustable by means of a respective screw (7) associated with one end of the blade and accessed through a corresponding hole (9) made through a chamfered front strip (lc) made on a corresponding transverse edge of said semi-body (1); in which both depressions (the, lb) determine the formation of a central longitudinal pavilion (3) that includes a vertically through hole (4) that ends at a substantially flat central longitudinal strip (10), and where they have formed pairs of other blind holes (12; 13) that open towards the lower surface of this first half-body (1) in longitudinally aligned positions on both sides of said vertical through hole (4) along the

mentioned intermediate longitudinal strip (10),

wherein said first semi-body (1) further includes

a number of longitudinal channels (8) dug in its

internal surface, semicircular section and diameter

S

variables, inside each one of which appears

the cutting end (Sa) of a respective blade

(S);

and where the second semi-body (2) includes a number

of longitudinal channels (8 '), as many as the first semi

10

body (1), in positions mutually facing the

of the first and with semicircular profiles and diameters

respectively equivalent, that together with said channels

(8) of the first semi-body provide accommodation for

accommodate cables of different sections during operation

lS

peeled,

also counting this second semi-body (2) with a

central longitudinal strip (10 '), substantially flat,

in a position facing the central longitudinal strip

(10) of the first semi-body under the canopy (3),

twenty

emerging from said intermediate strip (10 ') a rod

threaded (11) with a diametral dimension suitable for housing

inside the through hole (4) of the first semi

body (1) and with a longitudinal dimension sufficient to

protrude slightly outside the upper end of the

2S

central vertical hole (4) in the condition of both

bodies (1, 2) mutually coupled, two studs (12 ') to

both sides of the threaded rod (11) and aligned with the

same sized to stay partially in the couple

of blind holes (12) of the first half-body (1), Y

30

two recovery springs (13 ') positioned near

the ends of said flat longitudinal strip (10) and

also aligned longitudinally with the rest of the

emerging components from said strip sized

to stay partially inside the couple's

3S

blind holes (13) of the first half-body (1) in the

tool condition mounted with both semi-bodies (1, 2) mutually coupled, both semi-bodies (1, 2) being linked to each other by means of a threaded nut (14) threaded to the corresponding end of the threaded rod (11) after reaching the outside through said through hole (4). 2. Tool according to claim 1, characterized in that it consists of two bodies (15, 15 ') configured as substantially flat plates, mutually tilting by virtue of a pivoting joint obtained by adjacent coupling between two flat sections (16, 16' ) projected according to the longitudinal direction orthogonally from the inner face of each of the semi-bodies (15, 15 ') and joined together by

means, medium

from a screw (17), having both of them bodies a

extreme

from grab from surface increased respect to the

rest

from each body, with the peculiarity of that:

by

he extreme opposite to the from grab is tell  by he

cutting end, a body (15) has an orthogonal portion (18) integral therewith and equipped with a blade (19) positionally secured by means of a clamping screw (26), by the opposite end of the grip, that is to say by the cutting end, the other body (15 ') has an orthogonal support formation (20), integral therewith, provided with a longitudinal channel (21) of section in " V "for supporting the end of the cable to be stripped and with a groove (22) transverse to said channel (21), also of section in" V "and in position facing the cutting end of said blade (19), the second semi-body (15 ') including a solid formation (23) emerging from its internal and integral face therewith, in an intermediate position between the position of the pivoting sections (16, 16') and the end of cut; the first half-body (15) including a screw (25) threaded inside a through threaded hole (24) facing said solid formation (23) of the second half-body (15 ') and determining, by adjustment from the outside, of the amount of approximation between both semi-bodies by the cutting end, and also counting on the provision of a recovery spring (27), located in an intermediate position between the position of the pivoting sections (16, 16 ') and the grip end of both semi-bodies, drawn at their ends to tendons respective projected from the opposite faces of said semi-bodies, and also having a nut (28) for adjusting the tension of the spring (28) threaded on one of the lugs with respect to one of the ends of said spring (27 ). 3.-Tool according to claims 1 and 2, characterized in that it also includes a useful regulator, of

shape

general elongated, compound by a body (29)

filiform

that by a extreme It includes a means, medium (30) from

screwed

Y by he extreme opposite finish off in shape from

hook

(31).