Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B68—SADDLERY; UPHOLSTERY
  • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
  • B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B68—SADDLERY; UPHOLSTERY
  • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
  • B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
  • B68G2009/005—Devices for turning the springs 90° inside the pockets

Definitions

• the invention relates to a method for rotating and relaxing springs pressed into a block and inserted in a spring pocket snake according to the preamble of claim 1.
• the subject matter is furthermore a device for rotating and relaxing springs pressed into a block and inserted into a spring pocket according to the preamble of Claim 3.
• the present invention relates to feathers which are inserted in rows into textile bags made of cotton or fleece, so-called feather pocket snakes, which feather pocket snakes later mutually connected to each other, e.g. B. welded or glued by ultrasound.
• feather pocket snakes which feather pocket snakes later mutually connected to each other, e.g. B. welded or glued by ultrasound.
• a thrust finger can be moved transversely to the spring pockets, which also grasps the compressed spring at its upper end ring and shifts it laterally until the spring rotates through 90 ° due to its own clamping force.
• Another way to set up the springs is to use a rotating screw whose threads have the same effect.
• the object of the present invention is to provide a method and a device for folding pocketed springs, which ensures that all springs in the pocket sections assume the desired position after passing through the device.
• the springs can be rotated properly in that each spring does not only reach the effective area of the rod with which the spring is set up, but only several times. It does not matter whether the spring is exactly in the middle of the pocket section or not. It does not matter which geometric shape the end rings have. If there are empty pockets in the pencil case, the width of which may not be the same as the filled pockets, These shifts in position do not cause any problems when setting up the springs in the adjacent pockets. Furthermore, damage to the pocket material can be prevented, since the rod grips the spring laterally and only the forces necessary for the rotation are distributed over a large area to the springs and the textile pocket material lying between the spring and the rod.
• the process can be retrofitted into existing pocket spring machines and includes only a few maintenance-free parts that can be adapted to the springs to be processed with little effort.
• the drive of the latter can be used directly to drive the push rod. Retrofitting is possible with minimal effort.
• Figure 1 is a perspective view of a
• Figure 2 is a perspective view of a Pencil case while dividing the
• FIG. 3 is a perspective view of a
• Pencil case Figure 4 is a perspective view of the
• Figure 5 is a schematic representation (top view) of the
• Figure 6 is a top view (schematic) of a
• FIG. 7 is a plan (schematic) on a
• Figure 8 is a plan (schematic) of a
• Pencil case snake but with an enlarged one
• Figure 9 shows a cross section through the spring pocket snake and the swivel rod at the beginning of
• Pivotal movement, 10 shows a cross section through a spring pocket snake with a swivel rod of a further embodiment of the invention at the start of the swivel movement
• Figure 11 is a perspective view of a
• Rod drive in which the linear drive can only be swiveled in the vertical direction
• Figure 12 is a perspective view of the
• Rod drive in which the linear drive is pivotably articulated both in the vertical and in the horizontal direction
• Figure 13 is a perspective view of another embodiment of the drives for the push rod.
• the section shown schematically in FIG. 1 shows a spring pocket snake 1, in which there are six springs 3, each compressed into a block, on the right side in pocket sections. They assume this position after they have been inserted into the pocket section a, b, c, d, e, f, gh, i, which is initially open along the edge 5, by a correspondingly designed known insertion device in the direction of the arrow P. Between the individual springs 3, the spring pocket snake 1 is divided into a plurality of pocket sections by seams, for example, seams 7 welded by ultrasound or produced by a sewing machine. After inserting the compressed Springs 3, the open side of the pocket sections is closed by a seam 9 running parallel to the snake 1.
• the three springs 3 shown on the left have already been rotated by 90 ° by a spring installation or spring turning device.
• the axes of symmetry A of these springs 3 are now rotated by 90 ° to the original position.
• the spring pocket snake 1 is gradually advanced on a support and transport surface 11 by means not shown in the direction of the arrow S.
• the springs 3 compressed into a block are pushed in, not visible in the figures, on the right-hand side of the figure.
• the push rod 13 is pivoted at its end 21 about an axis B.
• the other end 15 is fastened to a connecting rod 17, which establishes a connection to a linear drive 19, which permits a horizontal pivoting movement of the push rod 13 about the axis B.
• An articulated connection 25 between the drive rod of the second linear drive 23 and the connecting rod 17 allows the mobility necessary for the installation of the springs 3.
• the linear drive 19 is articulated to the machine frame (not shown) at its end 27 facing away from the push rod 13.
• the lower leg 14 of the rod 13 In the rest position (broken lines), the lower leg 14 of the rod 13 is parallel to the edge 5 of the pencil case 1 and inclined at an acute angle to the plane of the transport surface 11.
• three springs are already in their final position at the beginning of the installation process described below Position (horizontal axis A) in pocket sections a, b, c.
• the pocket sections di adjoin these three springs 3, in which the springs 3 are still pressed together as a block.
• the push rod 13 or its lower leg 14 has been moved by the second linear drive 23 into the working position in which the lower leg 14 is now parallel or substantially parallel to the transport surface 11 (compare cross sections according to Figures 9 and 10).
• the leg 14 of the push rod 13 or a profile 29 attached to the leg 14 or a sleeve 31 rotatably attached to the rod 14 are at a distance Y from the transport surface 11. The distance is dimensioned such that the front edge 33 of the profile 29 or the front vertex of the sleeve 31 lies below the upper end ring 35 of the spring 3.
• the first linear drive 19 now swivels the rod 13 about the axis B (arrow direction Z).
• the spring 3, which is located in the pocket section d, is gripped on or under its end ring 35 and displaced transversely to the pocket coil 1.
• the spring 3 now tilts within the pocket section d and relaxes, so that its axis A lies horizontally or parallel to the transport surface 11 at the end of the pivoting process.
• the adjacent spring 3 in the pocket section e is also gripped by the rod 13, but may not yet have completely tipped over. If it has only been partially detected, it may return to the original compressed position when the rod 13 (FIG. 3) is raised. This does not matter, however, because the next time the push rod 13 is advanced, which occurs after the pocket spring coil has been advanced by a pocket section width, the spring 3 is gripped again and, as before, the spring 3 is placed in the pocket section d.
• the pocket spring snake can be fed.
• the pocket spring coil 1 is held at its edge 5 by a suitable means, not shown, in order to avoid displacement on the transport surface 13.
• Spring mattresses can have different widths. This means that a different number of pocket springs 3 or pocket spring sections are present in the pocket spring coils 1.
• the diameter of the springs 3 also differs depending on the design of the spring core.
• a pocket section is left empty or, preferably, a narrower empty section is produced.
• the creation of a narrower section results in a
• FIG. 5 clearly shows how such a shift v occurs and how it relates to the Distance between the two adjacent springs 3 affects.
• FIGS. 6 and 7 show the simple manner in which the stand-up device, i.e. the push rod 13 to the circumstances, i.e. the distance W between the individual springs 3 or spring pocket sections (FIG. 7) or their height H is adjustable.
• the insertion device when the distance w changes is carried out by simply moving it along the arrows M; the device is set to the height H of the spring 3 by the stroke of the first linear drive 19, which results in a change in the pivoting angle of the rod 13 about the axis B.
• the front end E of the rod 13 or of the roller 31 or of the profile 29 is preferably located between two springs 3. This makes it possible for the spring 3 not to get caught on the edge E. In addition, the damage to the bag material is further reduced.
• the linear drive 19 is articulated about a horizontal axis C on the machine frame, not shown.
• a spherical bearing or joint 25 is formed which, together with a fastening plate 41 pivotable about the axis q, deflects the vertically extending guide part 18 of the rod 13 when Working stroke and when lifting.
• the rod 13 is raised by the pneumatic cylinder (linear drive) 23, which is likewise articulated on the machine frame (not shown) and engages the linear drive 19.
• the first end 21 of the rod 13 is guided in a spherical bearing 43 so that it can pivot about the fixed axis B.
• the drive device for the rod 13 shown in FIG. 11 corresponds to that used for the known folding-up or opening fingers known from the prior art and can continue to be used as a drive for the rod 13.
• both the linear drive 19 for the working stroke and the stroke drive 23 for lifting the rod 13 and the connection between the push rod 13 and the connecting rod 18 are connected to one another by spherical bearings. This allows a very simple and inexpensive to construct constructive structure.
• the linear drive 19 is firmly connected to the machine frame, not shown.
• the lifting drive 23 is connected to the front end of the drive rod 25 of the first drive 19.
• the length compensation between the end of the push rod 13 and the fixed drive arrangement takes place by means of a slotted plate 47 which is attached to the end of the drive rod of the second linear drive 23 is.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mattresses And Other Support Structures For Chairs And Beds (AREA)
• Wire Processing (AREA)
• Springs (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=4565101

Family Applications (1)

Country Status (7)

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Family Cites Families (11)

• 2001
  • 2001-06-25 JP JP2002505301A patent/JP4792194B2/ja not_active Expired - Fee Related
  • 2001-06-25 AT AT01940040T patent/ATE322459T1/de not_active IP Right Cessation
  • 2001-06-25 EP EP01940040A patent/EP1294634B1/fr not_active Expired - Lifetime
  • 2001-06-25 DE DE50109442T patent/DE50109442D1/de not_active Expired - Lifetime
  • 2001-06-25 AU AU2001273756A patent/AU2001273756A1/en not_active Abandoned
  • 2001-06-25 US US10/312,109 patent/US6751933B2/en not_active Expired - Lifetime
  • 2001-06-25 WO PCT/CH2001/000392 patent/WO2002000545A1/fr active IP Right Grant

Non-Patent Citations (1)

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