FR2515009A1 - METHOD AND MEANS FOR THREADING BUCKLES ON STRAPS, ESPECIALLY STRAPS OF GLOVES AND OTHER UNDERWEAR AND CLOTHES - Google Patents

Abstract

THE INVENTION RELATES IN PARTICULAR TO THE TECHNICAL SECTOR OF SUSPENSION ARTICLES FOR CLOTHES AND UNDERWEAR. THE PROCESS IS REMARKABLE BY THE AUTOMATIC SUCCESSION OF OPERATIONS FOLLOWING WHICH IS INTRODUCED THE RIBBON 1 TAKEN BY A CLAMP 8 SUCCESSIVELY OR SIMULTANEOUSLY IN THE LOOPS 2 AND 3; WE WELD ONE END OF RIBBON 1 WHICH HAS JUST CROSSED LOOP 3 AND THE RIBBON IS EVACUATED. THE INVENTION MAINLY APPLIES TO BRA STRAPS.

Description

The invention relates to a method and means for threading

  buckles on suspenders, and in particular braces of support-

  throat and other undergarments and clothing.

  According to the invention, it has been desired to rationalize the threading operations of the loops on each support strap.

  a throat, generally consisting of a ribbon or bridle of elastic material

  tick. For this purpose, means have been put in place to ensure

  automatically and following a specific process, the

  o successive step of the flange in the loops.

  The process according to the invention is characterized by a suc-

  automatic transfer of operations according to which from the storage, we reserve tape or flange for constituting the strap to be mounted, said tape or flange is introduced into a clamp; each time, by means of the said pliers, the necessary length is pulled to form a strap; the end drawn from the flange or ribbon is introduced into one of the slots of a two-slit buckle; this end is folded under the said loop; the end folded into the other slot of said loop is introduced, while at the same time the strip or the flange is cut to the chosen length and this cut end is introduced into a single loop; we bring the two-slot loop under a

  welding station; weld the end that passed through the second

  slit me against the length of the ribbon or bridle

  in front of the first slot; we bring the two-slot loop back to its original position and transfer the simple loop to

  bring it beyond the two-slit loop; we introduce the former

  tremity of the band or flange close to the single loop, in the

  second slot of the two-slit buckle; this end is

  under the so-called loop; the said end is introduced into the

  first slot of the two-slit buckle, and the spool is removed

as thus realized.

  These and other characteristics will emerge from the description

following.

  To fix the object of the invention, without however limiting it, in the accompanying drawings: FIG. 1 is a general front view showing an example

  embodiment cs threading means loops on straps.

  FIG. 2 is a side view taken along the line

2-2 of Figure 1.

2 -

  FIG. 3 is a schematic view showing the cinematic chain

  control of the various means of implementation according to

previous figures.

  Figures 4 to 16 are partial diagrams illustrating the successive phases of the method according to the invention.

  Figure 17 is a perspective view of the ramp

undermined.

  In order to make the object of the invention more concrete, it is

  now written in a non-limiting form of realization it-

lustrous to the figures of the drawings.

  In general, the bras straps include a ribbon or flange (1) resilient in the longitudinal direction, a

  single loop (2) generally annular, and a loop (3) rec-

  tangular or other shape, with two slits (3 a) (3 b).

  Note that the strap may have two loops to two

  slots instead of a two-slot loop and a single loop.

  The ribbon or flange is cut from a storage receptacle (4) and engaged in an unwinder (5) equipped with an electronic variator with a recuperator arm (5 a) to ensure a smooth running of the flange or ribbon which must be tense

but not stretched (Figure 1).

  The tape or flange then passes between two safety rollers

  Tee (6) mounted freely rotatable and elastically positioned to avoid twisting or other deformations of the flange or ribbon, and possibly to control the stop

  of the machine in the event of failure to display the flange or

ban (Figure 1).

  After these safety rollers (6), the tape or flange passes under a non-return catch (7) and is manually inserted

  in a gripper (8) gripping (Figures let 4).

  It is not excluded that the band or flange is brought to the clamp (8) directly from the storage location without going through

  the unwinder (5) and the safety rollers (6).

  The clamp (8) is controlled by any means to be moved

  in a rectilinear manner on columns (9) or guide means

  similar age, since the ratchet (7), beyond the means of

  threading in the loop (3) (Figures 4 and 5).

  In the illustrated example, the clamp (8) is connected to a pneumatic jack (10) via a link (11) articulated

  to the clamp and an arm (12) hinged to the rod and mounted pi-

3 -

  voting on an axis (13), as illustrated in Figures 1 and 2.

  On the axis (13) also journal a second arm (14) offset relative to the arm (12) (Figure 2) This arm (14) is angularly displaced as the arm (12) by connection with a second pneumatic cylinder (15). ) and is connected by an articulation to a rod (16) itself articulated to a carriage (17) slidably guided on columns (18) or similar means,

  parallel to the columns (9) (Figure 2).

  The carriage (17) is equipped to receive the simple loop (2), and for this purpose, it is positioned below a loop distribution installation which can be constituted for example

  a vibrating bowl (19) and a trough (20) arranged for

  periodically loop (2) on the carriage (17).

  two-slot keys (3) are distributed in the same way, for example by means of a vibrating bowl (21) and a chute (22) periodically depositing a loop (3) on another carriage ( 23) slidably on the columns-s (18) and connected to a translational control means which may be for example an axis (24) on which articulates a connecting rod (25) resting against a bell cam (26). ) or the like, driven by a driving member (Figures 10 and 11)

  As can be seen in Figures 2 and 3, the different

  yen threading the flange into the loops, and the other oper-

  feeding, transfer or actuation of the organs, operate from the following kinematic data only

  as a non-limiting example.

  Geared motor assembly (27) driven by pinions (28-29)

  and chain (30) a lower shaft (31) carried by bearings (32).

  At the other end, the shaft (31) transmits its movement by means of

  gnons (33-34) and chain (35) to an upper shaft (36) carried by

  bearings (37) and extending parallel to the shaft (31).

  On these two trees are wedged the various organs of

  control means for implementing the method.

  We see successively on the lower shaft (31) while leaving

  of the motor: a cam (38) intended to feed a simple buckle

  (2) on the carriage (17), two cams (39) (40) for introducing

  flange or ribbon in the two-slit buckle (3)

  cam (41) for feeding a loop (3) with two slots, and the cam

  bell (26) for moving the carriage (23).

  On the upper shaft (36) starting from the same side as the -4 - motor there is successively a cam (42) for controlling the cutting member to the length of the flange, a cam (43). for the introduction of the flange into the single loop (2), a cam (44) for controlling the welding station and cams (45) (46) for introducing the flange into the loop (3) at two slits. All these cams are connected to the different means of implementation by all known devices such as: lever, arm, rod suitably mounted and arranged to act in a cycle which is more particularly illustrated in the diagrams of

Figures 4 to 16 of the drawings.

  It is obvious that these control and transmission means can be easily replaced by others without thereby departing from the scope of the invention which is essentially oriented

  on the automatic threading process of the flange in the

cles.

  This method, as mentioned above, actually begins from the moment the flange (1) is held by its front end (la) in the clip (8), it being understood that before that, the flange goes from preferably by a drive (5) with electronic variator for the smooth running at each flange tension, and by the

safety rollers (6).

  When the flange (1) is held in the clip (8), as illustrated

  In FIG. 4, the jack (10) connected to the clamp is actuated by the link (11) and the arm (12), in order to pull the clamp until its end taken in the clamp has passed the carriage ( 23) on which is positioned the loop (3) with two slots, arrow wire

(Figure 5).

  At this moment, a right upper finger (47) connected to the cam (46) descends vertically to introduce the flange (1) in the first slot (3 a) of the loop (3) with two slots (arrow f 2) ( Figure 6), then a horizontal finger (48) folds the flange (1) under said loop (arrow f 3) (Figure 7) after removal of the finger (47); the finger (48), connected to the cam bell (26) having a projection (26 a) for this purpose, remains in the advanced position, and a left lower finger (49) connected to the cam (39) introduces the flange (1). ) folded in the second slot (3b) of the loop (3) with two slots (arrow

f 4), (igure 8).

  Simultaneously, a vertical finger (50) connected to the cam (43), descends vertically (arrow f 5, Figure 9) to introduce the flange (1) into the single loop (2), while a cutter -5 - (51) connected to the cam (42) makes the cut to the chosen length

  the flange (arrow f 6, Figure 9).

  Note that all of the following elements: vibratory bowl (19), chute (20), cam (38) for feeding the loop (2), cutting member (51), cam (42) for controlling said member cutting, finger (50) introluction of the flange in the loop (2) and control cam (43) dudgt: (50), are adjustable longitudinally between the non-return pawl (7) and the welding station, for corresponding

  straps of different lengths This adjustment can be made

  kill for example by mounting these elements on slides (52) or the like and control by worm (53) and flywheel (54),

  possibly with a graduation marking of the positions (

gure 1).

  The carriage (23) carrying the loop (3) is then moved backwards (arrow f 7, FIG. 10) by the bell cam (26) having for this purpose a projection (26b) opposite the projection (26 a), and connected to the carriage by any suitable connecting member such as the axis (24)

and the connecting rod (25).

  A knife (55) connected to the cam (44) then welds the end of the flange which has passed through the second slot (3b) of the loop (3) against the portion of the flange located before said loop (FIG. ).

  The carriage (23) is then brought back to its iris position (arrow).

  FIG 8), then the carriage (17) carrying the single loop

  (2) and which is connected to the jack (15) by the arm (14) and the

  te (16) (Figure 12), is moved in translation along arrow f 9, Figure 13, to pass said loop beyond the loop (3) In this action, the flange (1) is also driven by a horizontal finger (56) with a projecting projection (56a) which is slidably mounted on the columns (18) and connected to the arm (14)

  by a connecting rod (57) with adjustable positioning.

  When the loop (2) is in position beyond the loop

  (3), the cut end of the flange (1) is introduced into the second

  xth slot (3b) of the loop (3), this by a left upper finger (58) connected to the cam (45) (arrow fl O, Figure 13) After

  removing this finger (58), the horizontal finger (48) left

  in the advanced position, back by folding with him the end of the flange which has just crossed the second slot (3 b) of the

  two-slit loop (wire arrow, figure 14).

  Finally, a lower right finger (59) connected to the cam (40)

  -6- troduces the end folded into the first slot (3 a) of the

  two-slit loop (arrow f 12, figure 15).

  After this operation, the strap can be evacuated by any means (not shown) such as a pusher acting on the last loop (3) at the base of the chute (22) and pushing the buckle (3) positioned on the carriage ( 23), which can then fall into any means of reception and conditioning or

appropriate packaging.

  In a preferred manner, although not limiting, provision is made to return to 1800 the loop (3) with two slots (arrows f 13, between

  FIGS. 15 and 16) using a pliers to bring the end

  the flange (1) just passing into the first slot (3 a) of the buckle (3), in a vertical or hanging position where it

  can be drawn (arrow f 14, figure 16) between two rollers

  motor roller (60) and a pressure roller (61) are

  born to adjust the ramp to the desired length.

  Of course, as already mentioned, many

  In the context of the invention, examples may be introduced in particular in the type of means for carrying out the process.

  (control organs, transmissions, energy sources).

  The advantages are clear from the description, we emphasize

  in particular: the automatic threading, in continuous cycle, of the elements of the flange, as well as the synchronized cutting and feeding to ensure an interesting yield with a minimum of

  trimmings, handling, transport and manpower.

  The invention is in no way limited to that of these modes of application, nor to those of the embodiments of these various parts which have more especially been indicated; she

  on the contrary, embraces all variants.

-7-

Claims (1)

1. Method and means for threading loops on straps and in particular bras straps and the like, characterized by an automatic succession of operations according to which from the storage (4), we reserve the right to ribbon or flange (1) intended to constitute the ramp to be mounted, said tape or flange (1) is introduced into a clamp (8); each time, by means of the said pliers, the necessary length is pulled to form a strap; the end drawn from the flange or ribbon (1) is introduced into one of the slots (3 a) of a loop (3) with two slots; this end is folded under said loop (3); the end folded into the other slot (3b) of the said loop is introduced, while at the same time the strip or the flange (1) is cut to the chosen length and this cut end is introduced into a single loop (2 ); bringing the loop (3) to two slots under a weld station (55); the end which has passed through the second slot (3b) is welded against the length of the ribbon or flange (1) which lies in front of the first slot (3); the loop (3) is brought back to two slots in its initial position and the simple loop (2) is transferred to bring it beyond the loop (3) with two slots; introducing the end of the strip or flange close to the single loop (2) in the second slot (3b) of the loop (3) with two slots; this end is folded under said loop (3); said end is introduced into the first slot (3 a) of the loop (3) with two slots, and the strap thus produced is evacuated. -2 threading method according to claim 1, characterized in that distributes regularly the successive lengths of flange (1) necessary for the formation of a strap, interposing between the storage (4) and the gripper (8) for pulling said flange, an unwinder means (5) with an electronic variator and a recuperator arm (5 a). -3 threading method according to any one of the claims   1 and 2, characterized in that it ensures the correct movement of the flange (1) supplied to the clamp (8) of traction, by passing said flange in a guide member such as rollers (6) spacing elastic avoiding twisting and other deformations of the bridle. -8-   -4 Threading method according to any one of claims   1, 2 and 3, characterized in that any undesired removal of the flange (1) by passing it into contact with a   non-return pawl (7) disposed upstream of the clamp (8).   -5 donning method according to claim 1, characterized in that after introduction of the cut end and folded of the   flange in the first slot (3 a) of the buckle (3), one pivots   bend the loop (3) of 180 to present the said flanged end in a vertical manner or in order to make the adjustment to the length   of the sling, by pulling by any means such as   motor (60) and presser (61) between which the mite of the bridle.   -6 Means for implementing the method according to claim 1, characterized in that the different means (47, 49, 50, 58, 59) for introducing the flange into the loops (2 and 3), the organ (55) of welding, the member (51) for cutting the flange and the members and feeding of said loops, are connected directly or by any means such as levers, connecting rods to cylindrical cams (46, 39, 43 , 45, 40, 44, 42, 38, 41) angularly spaced and distributed on two parallel shafts (31, 36) carried by bearings (32, 37)   and driven by any means such as geared motor (27).   Means for carrying out the process according to claim 1,   characterized in that the horizontal finger (48) for folding or   flange (1) after introduction into the slots of the loop (3), is actuated by any means connected to a cam-bell   (26) having a protrusion (26a) for this purpose which is wedged with gully on the shaft (31).   -8 Threading means according to claims 1 and 7 together,   characterized in that the two-slot loop (3) is positioned in a carriage (23) slidably guided and movable between two longitudinal positions by means of any means such as axle (24) and rod (25) connected to articulation to the cam bell (26) having for this purpose a projection (26b) opposite the projection   (26 a) of cooperation with the horizontal finger (48).   -9-_ Threading means according to claim 1, characterized in that the clamp (8) pulling the flange (1) and a carriage (17)   positioning of the single loop (2) are moved longitudinally   nally and rectilinear manner by any means such as pneumatic cylinders (10 15) respectively connected to arms (12 14) pivotally mounted on an axis (13) and articulated to rods   (11 l 16) hinged to the clamp and the carriage.   -10 Threading means according to claim 9, characterized in that the arm (14) for driving the carriage (17) is connected to a rod (57) with adjustable positioning, which is itself connected to a finger ( 56) gripping or hooking the flange   (1) when moving the loop (2) beyond the loop (3).   Thread means according to claims 1, 8 and 9 together   characterized in that the loops (2 and 3) are distributed   from vibratory bowls (13, 21) equipped with chutes for   ge (20, 22) positioned above the carriages (17 and 23).   -12 Threading means according to claims 1, 6 and 11   it is characterized in that the vibrating bowl (19), its chute (20) and its cam (38) for feeding loops (2), the cutting member (51) and its control cam (42), the finger (50) for introducing the flange into the loop (2) and its control cam (43) are adjustable longitudinally between the gripping position of the   flange by the clamp (8) and the welding station (55) for corre-   dre to straps of different lengths.