FR2489992A1 - ATTACHMENT BLOCK FOR LABELS - Google Patents

Abstract

BLOCK OF FASTENERS INCLUDING A PLURALITY OF FASTENERS CONNECTED SOLIDARILY, LIKE THE TEETH OF A COMB, TO A BINDING ROD 5 VIA RESPECTIVE JUNCTIONS 4, THE FASTENERS BEING PERPENDICULAR TO THE BINDING ROD, ATTACHING THE TIES HEAD 1, A CROSSMER 2 AND A FILAMENT 3 CONNECTING THE HEAD AND THE CROSSMER. IN THE BLOCK OF FASTENERS THEREFORE, THE INTERVAL L BETWEEN THE ADJACENT HEADS OF THE FASTENERS IS PROVIDED SMALLER THAN THE THICKNESS T OF EACH HEAD. THE INVENTION APPLIES PARTICULARLY TO THE ATTACHMENT OF LABELS ON OBJECTS.

Description

The present invention relates to a set

  or block of fasteners that is used to attach labels

  to objects; it is aimed in particular at a

  block of fasteners of the type in which a plurality of attachments

  are connected integrally, like the teeth of a comb, to a connecting rod, through respective junctions, the fasteners being perpendicular to the connecting rod and the spacing between the fasteners being less than the thickness of each of the heads of

fasteners.

  A tag clip is already known in itself. It may be, for example, of the type described in U.S. Patent No. 3,103,666 in which the fastener

  label comprises a head, a cross-bar and a

  lament connecting the head and the cross, the assembly 1 'being molded synthetic resin, for example nylon or polypropylene. In general, the fastener thus produced is small, the cross-member having for example a diameter of 0.8 to 1.0 mm and a length of 8 to 10 mm and the head having a width of 8 to 10 mm, a height of 3 to 5 mm and a thickness of 0.7 to 1.0 mm. On the other hand, the filament generally has a length of the order of 7 to

  after lengthening, although the length is different

  depending on the objects with which the fastener is to be used. The minimum diameter of the filament after

  elongation is 0.3 to 0.4 nn. In addition, the weight of each

  The attachment is therefore of the order of 0.04 to 0.1 g. The fastener is therefore particularly thin. As regards the shape of the head of the fastener, it may be rectangular, as shown in FIG. 1A, or have an upper edge whose central portion is higher, such as

represented in FIG. 1B.

  Since the fasteners are particularly small

  as already indicated, they are integrally molded in the form of a block in which a plurality of fasteners are connected, like the teeth of a comb, to a rod of

  connection, as shown in Figure 2, to take account of

  te requirements of manufacture and use. This provision

  The invention will now be described in detail with reference to FIG. 2. A fastener comprises a head 1, a cross-member 2 and a filament 3 which connects the two parts 1 and 2. The fasteners having this configuration are integral with each other.

  a large number of connecting rods 5 through the medium of

  respective junctions 4, so as to be perpendicular

  to the connecting rod 5. This gives a block A

fasteners for labels.

  In general, the number of attachments

  The lidar of a connecting rod is of the order 25 to 50.

  In the case of filaments 3 having a relatively long length

  weak, from 7 to 20 mm approximately, the attachments are regular-

  attached to the bar 5. If the length of the filaments 3

  becomes greater than about 20 mm or more, the filaments

  ments can oscillate since the position of the heads 1 can vary without resistance, which

  causes entanglement of filaments 3 and heads 1.

  In the case, for example, where the fasteners are in nylons

  they have a relatively stable form immediately

  molding and stretching operations but their filament 3 softens as it progressively absorbs ambient moisture, resulting in entanglement of the fastener blocks when they come into contact with each other, or arrangement of fasteners in each block becomes irregular. In practice, when

  blocks of fasteners have been molded, we are generally packing

  a number in a boot, with a view to their

  subsequent transport. Meanwhile, the blocks of attack

  A1 and A2 can be interleaved heads, as shown in Figure 2. Therefore, if you want

  extract a block of fasteners, several blocks are taken

  at the same time. This has the disadvantage that a block of fasteners can not be used until it has been released from other tangled blocks. On the other hand, a

  similar entanglement can also occur when

  that a block of fasteners is stored temporarily, during its use, in the boot then is taken again for a new job. In addition, a labeling machine is loaded with a block of fasteners, when the fasteners are to be used. All of these fasteners oscillate when the

  fasteners must be implanted in the objects to be

  beg. As a result, the fastener heads become entangled, which causes difficulty in easily separating

  block of fasteners the fastener that was implanted in the ob-

  jet. To avoid the above disadvantages, a method has been proposed in which the heads of the fasteners

  adjacent are connected by means of a connecting cord.

  However, this junction cord is stretched and torn during

  that the single fastener that was sunk into the object must

  be separated from the block of fasteners and the result is a

  vure in "mustache" on the surface of the head of the fastener thus separated. In the case of a nylon tie,

  example, if the above connecting cord is stretched

  that it breaks, the junction filament is also

  elongated to a length of 4 to 5 times its length.

  initial shape, so that a "mustache" is formed

  very long protruding on the surface of the head of the

  task. Fasteners can be used to attach price tags to a wide variety of objects. Among these objects, the fabrics woven or knitted from fine fibers may have their fibers hooked by the "mustache" described above, which may result in a cut or deterioration. On the other hand, it is very difficult to form a thinner junction cord to avoid the deterioration caused in the object by

  this mustache. Indeed, the connecting cord has a di-

  meter limited to 0.1 to 0.15 mm by current mold making processes. In addition, if one forms a cord

  extremely thin junction, it may be cut off

  when transporting or handling the block. The block of

  fasteners whose connection cord is partially

  risk of being caught in a more complicated entanglement

  that the block of fasteners according to the prior art does not

  wearing a connecting cord, so that his handling

  lation becomes more difficult. On the other hand, training

  of this end junction cord requires a pre-treatment

  cis in the manufacture of the mold, so that the latter

  becomes expensive while having a reduced life.

  Thus, the connection of the heads of the fasteners by means of the cor-

  gift of joining causes different difficulties, independently

  the thickness of the patch cord, so that

  this provision is not advantageous.

  The present invention avoids, in a new way,

  the various disadvantages of known devices. She

  relates to a block of fasteners which does not present any risk

  entanglement without the need to provide

  the heads of the fasteners of a junction cord.

  The present invention also relates to a

  block of fasteners of dense type, in which an amount

  raw fasteners per unit length of a connecting rod

  can be made using a small mold

if we.

  The invention also relates to a block of fasteners in which the filaments of the fasteners oscillate little, which is compact while having an excellent appearance and which

is easy to handle.

  The invention also relates to a set or

  block of fasteners that has a low cost of production by at-

  stain and that can allow the use in a continuous way

of a plurality of fasteners.

  The device according to the present invention is

  characterized in that a multiplicity of fasteners are

  bound together, like the teeth of a comb, to a

  connecting rod via junctions

  to be directed perpendicular to the connecting rod, the fasteners comprising a head, a cross-member and a filament connecting the head and the cross-member, the spacing between the adjacent heads of the fasteners being determined so as to be smaller than the thickness

of each of the heads.

  The invention will be better understood in the light

  description of its embodiments, which are not limited

  shown in the accompanying drawings.

  Fig. 1A and 1B are illustrative front views.

  the shapes of the heads of the usual fasteners,

tively.

  Fig. 2 is a perspective view of a block of

usual spots.

  Fig. 3 is a perspective view illustrating the situation in which the heads and filaments of the blocks

usual fasteners get entangled.

  Fig. 4 is a side view, on a larger scale.

  the, part of a block of fasteners following a first

  embodiment of the invention.

  Fig. 5 is a front view of the block of FIG.

  Fig. 6A and FIG. 6B are respectively a view

  of fasteners in accordance with the first form of

  in their state before stretching or stretching.

  Fig. 7, 8 and 9 are top views illustrating the shape of the fastener heads according to a second, a

  third and fourth embodiments of the invention.

vention, respectively.

  Fig. 10 is a front view of a fastener

  a fifth embodiment of the invention.

  Fig. 11 is a front view of a fastener

  a sixth embodiment of the invention.

  Fig. 12A, 12B, 12C, 12D, 12E, 12F and 12GWont front views of fasteners heads, following seventh,

  eighth, ninth, tenth, eleventh, twelfth and thir-

  ze embodiments of the present invention,

  tively. Fig. 13 is a front view illustrating the shape of the head of a fastener according to a fourteenth embodiment of the present invention, and FIG. 14 is a front view of a fastener of which

  the filament is stretched over its entire length.

  The invention is hereinafter described in detail with reference to the embodiments. Figures 4 and 5

  represent a first embodiment, three

  spots p1, P2 and p3 being shown in Figure 4 for the sake of clarity. The p1 clip includes

  a head 1, a cross-piece 2 and a filament 3 connecting the head

  you and cross it. The fastener p1 thus formed is connected, by a junction or root 4, to a connecting rod 5S of

  perpendicular to the rod 5. The clip p1 con-

  a block of P-fasteners, together with the

  p2, p3, etc., which are connected to the link bar

  in a similar way. The fastener block P comprises twenty-

  five to fifty fasteners p1, P2, p3, etc. for example, and up to a hundred fasteners in the case of the block having the stem of

longest link.

  The fastener block thus formed is molded in one piece, synthetic resin such as nylon or polypropylene. The filament, immediately after molding, has a diameter that is substantially the same as that of the crossbar, and is relatively rigid, so that it can be broken by bending. In particular

  when the fastener is attached to an object by means of a

  to be labeled, the transom 2 is introduced in the ob-

  jet in a position such that the filament is deformed

  substantially parallel to crossing 2. Where the

  pour 2 has been implanted in the object, the filament 3 does not easily lose its deformation, or even it remains folded by the deformation. Given this phenomenon, the filament 3 is then stretched after the molding operation so that

  to communicate to him, by orientation of the molecules of poly-

  mother, characteristics of flexibility but also of

  resistance so that it remains barely folded.

  Before it is stretched, the filament 3 may have a convergent shape, as shown in FIG. 6A, or a parallel shape, as shown in FIG. 6B. The thickness t of the head 1 is generally 0.7 to 1, 0 mm, which corresponds substantially to the diameter of the cross member 2. In general, the cross member 2 has a diameter of the order of 1.0 mm for example, so that it can not be deformed in V when implants the tie into

  the object. The spacing 2 between the head 1 and an adjoining head

  In general, the amount is from 0.2 mm to less than 0.7 mm, preferably 0.2 to 0.5 mm, or more preferably 0.2 to 0.3 mm. If the spacing e is within one of the ranges of values indicated above, the resistance of the walls delimiting the mold cavity between the heads 1 and 1 'can be maintained at a level sufficient for, that there is no difficulty in the molding operation. In addition, if the spacing is between 0.2 mm and less

  0.7 mm, this means that the gap between the heads

  jacentes is smaller than the thickness of the heads. By following

  even if the fastener blocks come into contact with each other, the head of a block of fasteners can hardly be introduced into the game between the adjacent heads of the other block of fasteners until it becomes entangled.

  more, in a block, if a fastener tends to move

  in the transverse direction, the adjacent fastener simultaneously changes position in accordance with the movement of the preceding fastener, if the interval e is between 0.2 mm and less than 0.7 mm. Thus, the entire block behaves in the same way, which

  avoids the displacement of a single fastener and an irregular

  of the arrangement. This in turn prevents the entanglement

  really blocks. More particularly, if the range is from 0.2 to 0.5 mm and preferably from 0.2 to 0.3 mm, the heads of the respective fasteners constituting the block of joints assume a position in which they are maintained. as if they were glued to each other

  others, so that the respective ties

  They can no longer behave independently. We avoid

thus the entanglement of the blocks.

  When the labeling machine is loaded with

  a block of fasteners and activate its lever,

  gnon comes into contact with root 4 so as to make

  fasten the ties one by one and cut the roots 4 one by one, so that the fastener

  object. In other words, root 4 has the role of permitting

  to advance the fasteners one by one and to serve as a passage when a molten resin is injected into the mold. For these reasons, the root 4 must have a diameter such that there are no difficulties in the injection of the resin and can easily cut the root. The connecting rod 5 is also the guiding passage for the resin when the latter is

  injected into the mold cavity to form the

  molds. Thus, it is preferable to use a connecting rod 5 of round, square, semi-oval, or hexagonal shape. In the embodiment shown in Figures 4 and 5, since the interval ú between the heads of the fasteners p1, P2, p3, etc. constituting the block P of fasteners is smaller than the thickness t of the heads, it is possible to prevent the heads of the fasteners of a block of fasteners

  to get into the games between the heads of

  the other block of fasteners, even if a plurality of fastener blocks are held in contact with one another, which avoids the interlacing of the heads and / or filaments. In addition, the narrowness of the L interval between

  heads is also effective in preventing irregularity

  storage of the heads in the block.

  FIG. 7 is a view from above showing the

  form fastener heads in a second form of

  embodiment of the invention. In this second form of

  realization, more particularly, the thickness t of

  is greater than the interval s between adjacent heads

  in the same way as in the first form of re-

  alisation, the heads of Figure 7 being deformed in their central portion so as to have the shape of a boomerang. As shown in plan view in FIG. 7, a game also having the shape of a boomerang is left between the adjacent heads 1a and 1a. In order to

  however, the front end of the head is

  covered by the front end y of the adjacent head la, so that it is not visible in side view. As a result, the heads are arranged in a side view as if they are

there was no game between them.

  According to the second embodiment described

  above, since the thickness of the heads of the fasteners

  is greater than the interval j between the heads of the

  adjacent spots, and since the heads are arranged

  me if there was no game between them in view of side,

  heads and / or filaments are more resistant to

  entanglement, even if a plurality of fastener blocks

  are kept in a situation of mutual contact. More particularly

  because the heads are distorted in mid-air

  With a change of direction, as shown in FIG. 7, the heads of one block can not be introduced beyond the central portions of the heads of the other block, even if the heads of the two blocks are shifted. As a result, this further helps to avoid entanglement and to release it easily if it occurs. In addition, even if the head of a fastener of a block of fasteners, for example the head la ', moves laterally to come out of the other heads, its front end z comes into contact

  with the front end y of the other head la, which

  still tries to avoid the irregularity of storage of heads.

  FIG. 8 is a top view of heads

  a third embodiment of the invention. In

  In this case, the front and rear faces of a head lb are

  with inclined surfaces c and d coming down from

  extension of the filament towards the lateral edges of the head

  te, symmetrically with respect to the extension of the filament.

  In this third embodiment, the thickness t of the heads is also greater than the interval t-between the adjoining heads and the heads have a section in the form of a parallelogram. As a result, a head can not advance beyond half a length of play between the heads, if the first enters the latter, so that they are prevented from overlapping completely.

  heads are entangled, they can be separated without

  ficulty. On the other hand, according to this third embodiment, if the initial thickness of the heads is designated

  by t, the heads can be thinned down to a thick

  (t - tl) by reducing the initial thickness to a value t1 at the lateral edges. Thus, the walls defining the cavities of the mold for the formation of the heads may be thicker, corresponding to this reduction dl

  thickness of the heads, which consequently improves the

  mechanical resistance of the mold. In this third form of

  realization, it is also possible to remove the mold

  cilating, after injection and molding of the resin in the mold.

  Figure 9 represents a fourth form of

  embodiment of the invention in which the left half and the right half of each of the heads are inclined from the center of the head with the same angle for

  molding, so as to obtain a V shape more or-

  green in top view. As a result, the heads are arranged as if there is no clearance, for the sake of comparison, as in the second embodiment of FIG. 7, which also prevents entanglement of the heads. Same

  time, since games between heads change direction

  in their orientation, a head can not advance beyond the middle of the game between the other heads even if

  penetration occurs, so that the heads become entangled

  can be easily separated. In addition, in the block of fasteners shown in FIG. 9, even if a fastener moves transversely outwards, its head 1c comes into contact at its point of inflection e. with

  the front end f of another head td, so that the ir

  regularity of fastener storage can be avoided and

  that a stable disposition is constantly maintained.

  In the first and fourth forms of reali-

  As described above, the arrangement of the fasteners in a block of fasteners was considered in relation to the side view and the top view. However, the shape of each fastener, in front view, also plays an important role

  to prevent entanglement and it is possible to use

  configurations, as shown below. On the

  5, which represents the first embodiment,

  more particularly, the head 1 has lower edges

  q and h, which are gradually moving away from the

  at the same time as they move away from the filament 3. As a result, if the heads 1 are entangled, entanglement can

  be automatically released by the slopes of the lower edges

  g and hr. FIG. 10 represents a fifth embodiment of the invention, in which the head 1 has a

  Braun tube configuration, with indistinct edges

  lower _ and h curves. As a result, the effect of prevention of entanglement is more marked in this fifth

  an embodiment only in the case where the lower edges

  A and H are rectilinear, as shown in FIG. 5.

  Figure 11 represents a sixth form of

  in which the head 1 is molded with a base

  to the left of its axis. As a result, the edge

  The bottom of the right side is strongly inclined. In case of

  fastening the fasteners thus formed, for example.

  when the head of another fastener is retained by the lower edge g, entanglement can be easily

  released since the slope of the lower edge q is important.

  On the other hand, if the head of another fastener is retained by the other lower edge h, the head 1 is straightened to the right, in the position indicated in dotted line, so that the heads can be released from their situation. entanglement. Thus, the release can be facilitated

  by tilting the head to the right or to the left

  che. Figures 12A-12G show seventh

  to thirteenth embodiments of the invention,

  tively. In the seventh embodiment, represent

  In FIG. 12A, the head of the fastener is molded in the shape of an inverted triangle. In the eighth to tenth embodiments, shown in FIGS. 12B-12D, the head of the fastener is molded into a sectoral shape,

  semicircle and heart, respectively. In the

* zth to thirteenth embodiments, shown in Figures 12E to 12G, the lower edges of the freight

  head become narrower in the direction of prolon-

  filament 3, as shown in FIG. 12E

  for example. The head having the form indicated on a

  12A to 12G may be symmetrically molded

  relative to the filament axis, as shown in FIG. 10, or with a swing to the right or left relative to the filament axis, as shown in FIG. 11. For example, the case in which the head having the form indicated in FIG. 12D is tilted to the left with respect to the axis of the filament.

  Figure 13. In this example, the lower edge

  head is located substantially on the

  filament 3. As a result, the effect of

  the head can be sharper. So if head 1 is held

  naked by the lower edge h, it is tilted to the right at the position shown in dotted line, so

  that she is freed from her situation of entanglement.

  In the first embodiment

  In FIGS. 4 and 5, an unstretched portion 3e is retained between the head i and the filament 3. The unstretched portion 3, if it exists, serves as a coil or resist and has an advantage in that it is possible to make different fasteners whose filaments 3 have different lengths, depending on their different elongations

  from the corresponding unstretched fasteners. In-

  Since the unstretched portion 3t serves as a buffer, no abnormal tension is applied to the corresponding filament 3, so that the elongation cut of this filament

can be avoided.

  Figure 14 illustrates the case where the non-part-

  3 'is completely used, the filament 3 having a constant diameter of the cross member 2 to the head 1. The stretching of the filament 3 over its entire length, in this way, increases the strength and flexibility of the filament 3

  although it is thinned, so that the fixation of the

  stain by the labeling machine can be performed easy-

  is lying. At the same time, the price tag can be

  introduced into an object, although head 1 has

  a form that allows it to oscillate with respect to

is lying.

  As already indicated, the present invention is characterized in that the interval ú between the heads 1 of the fasteners is smaller than the thickness t of the heads, its value being generally from 0.2 mm to less than 0.7 mm, preferably 0.2 to 0.5 mm and more preferably 0.2 to 0.3 mm. If we respect the inequality t> t, it is possible to prevent the head of a fastener belonging to a block of fasteners from getting into the game between the heads

  fasteners constituting another block of fasteners and

thus avoid their entanglement.

  For example, a hundred or so blocks of

  having a spacing / L of 0.6 mm, as described in the first embodiment, and a hundred blocks of fasteners in which t 4 t according to the prior art (the respective blocks of the two types, however,

  the same number of solidarity fasteners) are placed at

  sard in different boots and are shaken gently

  for a predetermined period of time by means of a

  China to shake alternative. Then we count

  their averages of the number of blocks extracted from the respective boots and entangled with another block when this block is released. The results of these counts are indicated in the table below:

0.4 2.6

  These results show that entanglement can

  be substantially avoided by the present invention,

  relatively to the fastener blocks according to the prior art, and it can be easily released. In addition, according to the present invention, since the inequality t> t is satisfied, as already indicated, a dense block of fasteners is obtained.

  which has an increased number of fasteners per rod of rods

  tion, so that a plurality of fasteners can be used continuously. In addition, since the fasteners are densely connected to the connecting rod, as described above, the block may be a unitary assembly, making it possible to manufacture fasteners which are free from irregularity in their arrangement, which have an aspect

  excellent and that are easy to handle. In addition,

  the present invention, since the block obtained

  with fasteners arranged in a dense manner, productivity

  of fasteners can be improved and the cost of produc-

  each fastener is decreased.

  It is understood that modifications of detail may be made in the form and construction of the device according to the invention without departing from the scope

of it.

Claims (8)

claims   1. Block of fasteners comprising a multiplicity of fasteners   stains integrally connected as the teeth of a comb, to a connecting rod (5) via respective junctions (4), the fasteners being perpendicular to the connecting rod, each fastener comprising a head (1), a crosspiece (2) and a filament (3) connecting the head and the crossbar, characterized in that the intervallIentre the adjoining heads of the fasteners is predetermined at a value   less than the thickness (t) of each head.   Fastener block according to claim 1, characterized   in that the gap between the adjacent heads is 0.2 mm to less than 0.7 mm.   3. Fastener block according to claim 1,   characterized in that the interval between the adjacent heads is 0.2 mm to 0.5 mm.   4. Fastener block according to claim 1, characterized   in that the gap between the adjacent heads is 0.2 mm to 0.3 mm.   5. Fastener block according to any one of the   cations 1 to 4, characterized in that the heads of the   ches have a boomerang shape, seen from above.   6. Fastener block according to any one of the   1 to 4, characterized in that the front faces and   rear of the heads (1b) of the fasteners have   these (c, d) downward inclined, the extension of the filament   towards the lateral edges of the head, symmetrically port to the extension of the filament.   7. Fastener block according to any one of the   1 to 4, characterized in that the heads (1c) of   fasteners have a V shape, seen from above.   8. Fastener block according to any of the   vendications 1 to 7 ,. characterized in that the edges (g, h) of the heads of the fasteners which are turned towards the cross-member   are formed so as to move away from the crossbar in m -   as they move away from the filament.