CA2291036A1 - Method and device for producing packet spring cores - Google Patents
Method and device for producing packet spring cores Download PDFInfo
- Publication number
- CA2291036A1 CA2291036A1 CA002291036A CA2291036A CA2291036A1 CA 2291036 A1 CA2291036 A1 CA 2291036A1 CA 002291036 A CA002291036 A CA 002291036A CA 2291036 A CA2291036 A CA 2291036A CA 2291036 A1 CA2291036 A1 CA 2291036A1
- Authority
- CA
- Canada
- Prior art keywords
- springs
- coils
- jackets
- contrivance
- individual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a method and a device for producing pocket spring cores. The invention is characterized in that the formed fabrics which make up the individual coils (30) of the pocket spring cores are joined to each other, whereupon the springs (27) are inserted.
Description
Method and Device for Producing Pocket Spring Cores The object of this invention is a method and a device for generating pocket spring cores.
Such methods and devices have become known in a plurality of different forms of embodiment. Essentially, first constructed for this are individual coils of pocket springs.
These coils contain a series of pockets. Accommodated in each pocket are one or more springs. The pockets are closed with respect to each other, e.g. by cementing or welding.
The jacketing consists of a fabric or a substance displaying different material properties, based on requirements. In principle, any suitable material is capable of being used here; the concept of a fabric is not to be considered limiting.
For production of the pocket spring cores, first produced according to prior art is a series of coils that are next joined with one another. This is done, for example, by cementing (gluing).
However, the known methods and devices are relatively ineffective and require high outlays for equipment, since the individual coils must be positioned exactly in relation to each other.
Therefore, the object of this invention is to provide a method and a device by which pocket spring cores can be produced quickly, in a cost-effective fashion and at low expense, in practically random dimensions (sizes).
This objective is satisfied in accordance with the invention by the technical teaching of the independent claims.
The invention proposes a completely new way for producing pocket spring cores.
Now.
individual coils that have to be tediously joined together will no longer be produced first;
rather, taking place first is the joining of the jackets or fabric of the individual coils, and the springs subsequently inserted. If required, the separation into pockets can be performed downstream.
The result of this is the significant advantage that already from the start the desired number of coils to be used, which is essentially predetermined by the width of the pocket spring core, is supplied. The length of the pocket spring core can be easily set; as a measurement for this the consumption of jacketing or the number of inserted springs can be used.
It is preferred to have the jacketing material for each coil available already pre-sorted into the correct sizes. The individual jackets are then arranged next to each other and joined with one another. A welded connection is preferred here but, obviously, also possible is cementing or some other means of joining, such as stitching.
Such methods and devices have become known in a plurality of different forms of embodiment. Essentially, first constructed for this are individual coils of pocket springs.
These coils contain a series of pockets. Accommodated in each pocket are one or more springs. The pockets are closed with respect to each other, e.g. by cementing or welding.
The jacketing consists of a fabric or a substance displaying different material properties, based on requirements. In principle, any suitable material is capable of being used here; the concept of a fabric is not to be considered limiting.
For production of the pocket spring cores, first produced according to prior art is a series of coils that are next joined with one another. This is done, for example, by cementing (gluing).
However, the known methods and devices are relatively ineffective and require high outlays for equipment, since the individual coils must be positioned exactly in relation to each other.
Therefore, the object of this invention is to provide a method and a device by which pocket spring cores can be produced quickly, in a cost-effective fashion and at low expense, in practically random dimensions (sizes).
This objective is satisfied in accordance with the invention by the technical teaching of the independent claims.
The invention proposes a completely new way for producing pocket spring cores.
Now.
individual coils that have to be tediously joined together will no longer be produced first;
rather, taking place first is the joining of the jackets or fabric of the individual coils, and the springs subsequently inserted. If required, the separation into pockets can be performed downstream.
The result of this is the significant advantage that already from the start the desired number of coils to be used, which is essentially predetermined by the width of the pocket spring core, is supplied. The length of the pocket spring core can be easily set; as a measurement for this the consumption of jacketing or the number of inserted springs can be used.
It is preferred to have the jacketing material for each coil available already pre-sorted into the correct sizes. The individual jackets are then arranged next to each other and joined with one another. A welded connection is preferred here but, obviously, also possible is cementing or some other means of joining, such as stitching.
Next, the jackets are converted into a closed tube by overlapping the free ends and connecting them together. Again preferred here is welding; however, the other connection possibilities mentioned above can also be employed.
In order to obtain a desired form, and simultaneously be able to grip onto the inside space of the thus-structured tube, the jacketing is preferably looped about a pipe, the pipe being adapted in size to the springs being processed.
The springs are now conveyed in, this preferably being done by inserting the springs into the inner space of the appropriate tube. The springs are then pushed torward inside this inner space, in the conveying direction, for a certain distance or up to a stop.
The springs need not be forcibly introduced after the forming of the jacketing into a tube. It is likewise possible to place the springs in the tube beforehand and then, after forming the tube, tacking them in.
In the event that a pocketing is to be provided. a separation is formed behind the introduced spring or springs in each coil. This separation can consist of a penetrating weld seam, of an interrupted weld seam or of weld points. Used in the following is only the concept of weld seam, which includes all the possibilities mentioned. Alternatively, a gluing, a stitching or some other possibility can again be selected.
Self-evident is the fact that the fabric forming the jacketing must be moved in the conveying direction. Driven rollers can be used for this purpose, but it is likewise possible to achieve the movement of the fabric together with the displacement of the springs. A
combination is also possible.
After reaching the desired length for the pocket spring cores, applied for the pocketing is not one but two weld seams that display a certain, relatively small spacing between each other, depending upon conditions. The already-completed pocket spring in this region between the weld seams is next separated from the one yet to be produced. Preferred here is that a hot separation (cutting) be done, e.g. by means of a heated, mobile wire.
Obviously, an alternative possibility is the use of shears or other mechanical separation means.
The finished pocket spring core is removed via a suitable contrivance, and possibly reworked to some measure to achieve a uniform surface.
In order to obtain a desired form, and simultaneously be able to grip onto the inside space of the thus-structured tube, the jacketing is preferably looped about a pipe, the pipe being adapted in size to the springs being processed.
The springs are now conveyed in, this preferably being done by inserting the springs into the inner space of the appropriate tube. The springs are then pushed torward inside this inner space, in the conveying direction, for a certain distance or up to a stop.
The springs need not be forcibly introduced after the forming of the jacketing into a tube. It is likewise possible to place the springs in the tube beforehand and then, after forming the tube, tacking them in.
In the event that a pocketing is to be provided. a separation is formed behind the introduced spring or springs in each coil. This separation can consist of a penetrating weld seam, of an interrupted weld seam or of weld points. Used in the following is only the concept of weld seam, which includes all the possibilities mentioned. Alternatively, a gluing, a stitching or some other possibility can again be selected.
Self-evident is the fact that the fabric forming the jacketing must be moved in the conveying direction. Driven rollers can be used for this purpose, but it is likewise possible to achieve the movement of the fabric together with the displacement of the springs. A
combination is also possible.
After reaching the desired length for the pocket spring cores, applied for the pocketing is not one but two weld seams that display a certain, relatively small spacing between each other, depending upon conditions. The already-completed pocket spring in this region between the weld seams is next separated from the one yet to be produced. Preferred here is that a hot separation (cutting) be done, e.g. by means of a heated, mobile wire.
Obviously, an alternative possibility is the use of shears or other mechanical separation means.
The finished pocket spring core is removed via a suitable contrivance, and possibly reworked to some measure to achieve a uniform surface.
The entire finishing process can run off in continuous or cyclic fashion, with cyclic finishing being preferred. Preferred here is to perform the three welding processes at the same time.
Next, the welding elements are withdrawn and the jacketing moved. As mentioned at the beginning, this preferably takes place by introducing the springs, which are pushed up to the forward end of the coil concerned, and then farther by an amount that corresponds approximately to the maximum diameter of the spring. Rollers or spools that act upon the jacketing can support this movement.
The object of this invention results not only from the object of the individual claims, but also from the combination of the individual claims among one another.
All data and features disclosed in the documentation, including the abstract, in particular the spatial structuring represented in the drawings, are claimed as invention-essential, insofar as they are new individually or in combination relative to the prior art.
The invention will be explained in more detail in the following with the aid of the drawings representing just one method of embodiment. In this, resulting from the drawings and their description are other features essential to the invention.
Shown are:
Figure 1 : a side view of a device in accordance with the invention Figure 2. a plan view according to arrow II in Figure 1 Figure 3. a side view according to arrow III in Figure 1 Figure 4: detail X from Figure 1 Figure 5: detail Y from Figure 1 Figure 6: detail Z from Figure 1 Figures 7 to 9: Views according to Figures 4 to 6 in which the fabric forming the jacketing is represented Figures 1-3 show schematically overall views of a device 1 in accordance with the invention. In the implementation example represented, the device 1 includes an upright 2 on which are mounted several spools (reels, cylinders). These spoofs can be arranged one above the other as represented, and carry the fabric 23 in the required dimensions.
Depending upon circumstances, it can be required that the spools be arranged one above the other. Obviously, each spool 3 is as wide as the total dimension of the associated fabric 23, so that by mounting the spools 3 right next to each other a very great width would be achieved. To decrease this width, the spools can be mounted above one another, as represented.
The device 1 further includes a forming and welding station 4, a pocketing station 5, a cutting tseparation) station 6, as well as a packer/transporter7.
The forming and welding station in the implementation example includes a pipe 8 that can be provided with a funnel 9 on its end facing toward the spools 3. This funnel serves to facilitate winding the fabric 23 about the pipe 8.
Disposed inside the pipe 8 is a pusher (slider) for moving the spring 27.
These springs 27, in the implementation example shown, are supplied from below via a pipe 11 and another pusher 12.
Overall feeding of the springs 27 can, for example, be accomplished laterally, hence from the top or bottom in Figure 2.
Available for producing the appropriate connection are three sonotrodes 13.
14, 15, whose exact method of operation is represented in the more detail in Figures 4-9.
One or more conveying stations 16 can be provided with one or more driven rollers for conveying the fabric in the conveying direction 29. Obviously, it is likewise possible to achieve this conveying via the pusher 10.
The cutting station 6 includes a wire 19 that is heatable and movable in the arrow direction 20, 21 . Here, the wire is structured such, and brought to such a temperature, that it can cut through the fabric 23 without difficulties.
The packer 7, in the implementation example shown, consists of two rotating belts 17, 18, between which the finished pocket spring core is picked up. Preferred is to have the distance between the belts 17, 18 be adjustable in order to be able to exert pressure on the pocket spring core for smoothing out roughness.
In the implementation example shown, carried out are essentially three joining (connecting) processes. As already explained in the general part of the description, a welded connection is preferred, in comparison to a cemented or stitched connection. The principal reason is that no additional material must be supplied.
Figures 4 and 7 show the connection of individual jackets 23 and, therewith, connection of the individual coils. Here, every other pipe 8 is provided with a recess 22 which a first sonotrode 13 engages. As represented in Figure 7, this sonotrode 13 is movable in order to enable an adaptation to different rim conditions. The sonotrode in the implementation example shown generates three weld points 24, which can be placed above one another, next to each other or also diagonally. The distance between individual weld points can essentially be freely selected. The distance between the individual connections, from weld points 24 in Figure 7 to the sonotrode 13, can be essentially freely selected also.
Figures 5 and 8 show the subsequent forming of the fabric 23 into a closed tube. For this, as represented schematically in Figure 8, the overhanging ends of the fabric 23 are folded in so that they overlap one another. A weld seam 25 is produced in this overlapping region by means of the sonotrode 14. The sonotrode 14 can be constructed to be mobile.
Figures 6 and 9 show the pocketing. An assumption for pocketing is that the closed tubes, that is the coils without springs, first be closed at their forward end. Next, a spring 27 is moved forward in each coil up to this non-represented seam, via the pipes 8, 1 7 and the pushers 10, 12.
All coils 30 are then moved forward a certain, predetermined distance. This can be done either by the pusher 10 or the conveying station 16 or a combination thereof.
It is self-evident that for the appropriate movement, the sonotrodes 15 that are provided for are driven downward. Now, as soon as the first picked-up spring has passed sonotrodes 15, these latter again travel upwardly and generate a .weld seam 26, so that a pocket is formed. Here, the weld seam 26 can, as represented, _be interrupted.
Obviously, it is also possible to produce a penetrating weld seam, or simply only one or more weld points.
Next, the sonotrodes 15 again travel downward. the next spring 27 is placed in a pocket, the coils 30 move in the conveying direction 29. The sonotrodes 15 drive upwardly, generate the next weld seam, and so forth.
As soon as a certain number of springs 27 have been processed or a certain length of fabric has been supplied, the sonotrodes 15 apply two weld seams 26 a short distance apart from one another. The cutting station, by means of the wire 19, then does the cutting between the weld seams.
The completed pocket spring core is picked up by the packer 7, if need be smoothed, and then processed and sent to a warehouse.
Here, the sequence and/or the type of springs to be processed can be varied.
For each coif its own type of spring can be used; several different springs can also be used for each coil.
Next, the welding elements are withdrawn and the jacketing moved. As mentioned at the beginning, this preferably takes place by introducing the springs, which are pushed up to the forward end of the coil concerned, and then farther by an amount that corresponds approximately to the maximum diameter of the spring. Rollers or spools that act upon the jacketing can support this movement.
The object of this invention results not only from the object of the individual claims, but also from the combination of the individual claims among one another.
All data and features disclosed in the documentation, including the abstract, in particular the spatial structuring represented in the drawings, are claimed as invention-essential, insofar as they are new individually or in combination relative to the prior art.
The invention will be explained in more detail in the following with the aid of the drawings representing just one method of embodiment. In this, resulting from the drawings and their description are other features essential to the invention.
Shown are:
Figure 1 : a side view of a device in accordance with the invention Figure 2. a plan view according to arrow II in Figure 1 Figure 3. a side view according to arrow III in Figure 1 Figure 4: detail X from Figure 1 Figure 5: detail Y from Figure 1 Figure 6: detail Z from Figure 1 Figures 7 to 9: Views according to Figures 4 to 6 in which the fabric forming the jacketing is represented Figures 1-3 show schematically overall views of a device 1 in accordance with the invention. In the implementation example represented, the device 1 includes an upright 2 on which are mounted several spools (reels, cylinders). These spoofs can be arranged one above the other as represented, and carry the fabric 23 in the required dimensions.
Depending upon circumstances, it can be required that the spools be arranged one above the other. Obviously, each spool 3 is as wide as the total dimension of the associated fabric 23, so that by mounting the spools 3 right next to each other a very great width would be achieved. To decrease this width, the spools can be mounted above one another, as represented.
The device 1 further includes a forming and welding station 4, a pocketing station 5, a cutting tseparation) station 6, as well as a packer/transporter7.
The forming and welding station in the implementation example includes a pipe 8 that can be provided with a funnel 9 on its end facing toward the spools 3. This funnel serves to facilitate winding the fabric 23 about the pipe 8.
Disposed inside the pipe 8 is a pusher (slider) for moving the spring 27.
These springs 27, in the implementation example shown, are supplied from below via a pipe 11 and another pusher 12.
Overall feeding of the springs 27 can, for example, be accomplished laterally, hence from the top or bottom in Figure 2.
Available for producing the appropriate connection are three sonotrodes 13.
14, 15, whose exact method of operation is represented in the more detail in Figures 4-9.
One or more conveying stations 16 can be provided with one or more driven rollers for conveying the fabric in the conveying direction 29. Obviously, it is likewise possible to achieve this conveying via the pusher 10.
The cutting station 6 includes a wire 19 that is heatable and movable in the arrow direction 20, 21 . Here, the wire is structured such, and brought to such a temperature, that it can cut through the fabric 23 without difficulties.
The packer 7, in the implementation example shown, consists of two rotating belts 17, 18, between which the finished pocket spring core is picked up. Preferred is to have the distance between the belts 17, 18 be adjustable in order to be able to exert pressure on the pocket spring core for smoothing out roughness.
In the implementation example shown, carried out are essentially three joining (connecting) processes. As already explained in the general part of the description, a welded connection is preferred, in comparison to a cemented or stitched connection. The principal reason is that no additional material must be supplied.
Figures 4 and 7 show the connection of individual jackets 23 and, therewith, connection of the individual coils. Here, every other pipe 8 is provided with a recess 22 which a first sonotrode 13 engages. As represented in Figure 7, this sonotrode 13 is movable in order to enable an adaptation to different rim conditions. The sonotrode in the implementation example shown generates three weld points 24, which can be placed above one another, next to each other or also diagonally. The distance between individual weld points can essentially be freely selected. The distance between the individual connections, from weld points 24 in Figure 7 to the sonotrode 13, can be essentially freely selected also.
Figures 5 and 8 show the subsequent forming of the fabric 23 into a closed tube. For this, as represented schematically in Figure 8, the overhanging ends of the fabric 23 are folded in so that they overlap one another. A weld seam 25 is produced in this overlapping region by means of the sonotrode 14. The sonotrode 14 can be constructed to be mobile.
Figures 6 and 9 show the pocketing. An assumption for pocketing is that the closed tubes, that is the coils without springs, first be closed at their forward end. Next, a spring 27 is moved forward in each coil up to this non-represented seam, via the pipes 8, 1 7 and the pushers 10, 12.
All coils 30 are then moved forward a certain, predetermined distance. This can be done either by the pusher 10 or the conveying station 16 or a combination thereof.
It is self-evident that for the appropriate movement, the sonotrodes 15 that are provided for are driven downward. Now, as soon as the first picked-up spring has passed sonotrodes 15, these latter again travel upwardly and generate a .weld seam 26, so that a pocket is formed. Here, the weld seam 26 can, as represented, _be interrupted.
Obviously, it is also possible to produce a penetrating weld seam, or simply only one or more weld points.
Next, the sonotrodes 15 again travel downward. the next spring 27 is placed in a pocket, the coils 30 move in the conveying direction 29. The sonotrodes 15 drive upwardly, generate the next weld seam, and so forth.
As soon as a certain number of springs 27 have been processed or a certain length of fabric has been supplied, the sonotrodes 15 apply two weld seams 26 a short distance apart from one another. The cutting station, by means of the wire 19, then does the cutting between the weld seams.
The completed pocket spring core is picked up by the packer 7, if need be smoothed, and then processed and sent to a warehouse.
Here, the sequence and/or the type of springs to be processed can be varied.
For each coif its own type of spring can be used; several different springs can also be used for each coil.
In particular, this is important in the production of pocket spring cores, since these latter are usually divided into areas having different requirements, especially different weight loading.
With this invention, it is readily possible to pre-program and then supply particular spring sequences.
The entire construction and sequence of the method are, moreover, very fluid and enable a rapid and cost-effective production Drawing Legends 1. Device 2. Upright 3. Spool 4. Forming and Welding Station 5. Pocketing /pocket-forming? Station 6. Separating/Cutting Station 7. Packer/Transporter 8. Pipe 9. Funnel 10. Pusher, Slide 11. Pipe 12. Pusher, Slide 13. Sonotrode 14. Sonotrode 15. Sonotrode 16. Conveying Station 17. Belt 18. Belt 19. Wire 20. Arrow Direction 21 . Arrow Direction 22. Recess 23. Fabric, Jacket, Jacketing 24. Weld Point 25. Wefd Seam 26. Weld Seam 27. Spring 28. Pocket 29. Conveying Direction 30. Coil
With this invention, it is readily possible to pre-program and then supply particular spring sequences.
The entire construction and sequence of the method are, moreover, very fluid and enable a rapid and cost-effective production Drawing Legends 1. Device 2. Upright 3. Spool 4. Forming and Welding Station 5. Pocketing /pocket-forming? Station 6. Separating/Cutting Station 7. Packer/Transporter 8. Pipe 9. Funnel 10. Pusher, Slide 11. Pipe 12. Pusher, Slide 13. Sonotrode 14. Sonotrode 15. Sonotrode 16. Conveying Station 17. Belt 18. Belt 19. Wire 20. Arrow Direction 21 . Arrow Direction 22. Recess 23. Fabric, Jacket, Jacketing 24. Weld Point 25. Wefd Seam 26. Weld Seam 27. Spring 28. Pocket 29. Conveying Direction 30. Coil
Claims (15)
1. Method for production of pocket spring cores, whereby the jackets (23) for the individual coils (30) of the pocket spring core are first joined with one another, the spring (27) being inserted afterward.
2. Method according to Claim 1, whereby the jackets (23) are welded together for forming the coils (30).
3. Method according to Claim 1 or 2, whereby the jackets (23) are formed into a tube after being joined and before inserting the springs (27), and the overlapping ends of the jackets (23) are joined with one another.
4. Method according to one of the preceding claims, whereby, after insertion of the springs (27) into the coils (30), produced between individual springs (27) is a weld seam (26) that joins with one another the opposite-lying sides of the jacketing of concern (23), thus forming a pocket (28).
5. Method according to one of the preceding claims, whereby ultrasonic welding is utilized for producing the individual weld seams (25, 26) or weld points (24).
6. Method according to one of the preceding claims, whereby the number of adjacently lying, simultaneously produced coils (30) is variable.
7. Method according to one of the preceding claims, whereby, after reaching a certain length of coils (30), or after the processing of a certain number of springs (27), two weld seams (26) are produced next to each other a small distance apart.
8. Method according to Claim 7, whereby, for generating the pocket spring core, a cutting takes place in the region between the weld seams (26).
9. Device for generating pocket spring cores consisting of individual coils (30) joined with one another, and comprising:
- a contrivance (2, 3) for preparing jacketing material (23), - a number of pipes (8) that are adapted, based on dimensions, to the springs (27) to be processed, and - at least one joining contrivance (13; 14; 15) for joining the jackets (23) in order to generate coils that are connected to each other.
- a contrivance (2, 3) for preparing jacketing material (23), - a number of pipes (8) that are adapted, based on dimensions, to the springs (27) to be processed, and - at least one joining contrivance (13; 14; 15) for joining the jackets (23) in order to generate coils that are connected to each other.
10. Device according to Claim 9 that further includes a contrivance (10, 11, 12) for inserting springs (27) into the formed coils.
11. Device according to Claim 9 or 10 that further includes a contrivance (6) for separating the jackets (23).
12. Device according to one of the Claims 9-11, whereby each pipe (8) is provided with a funnel (9).
13. Device according to one of the Claims 10 or 11, whereby assigned to each pipe (8) is a pipe (11) running essentially perpendicularly thereto, and arranged in pipes (8; 11) is a contrivance (10; 12) for displacing springs (27).
14. Device according to one of the Claims 11-13, whereby the contrivance (6) is constructed as a heated movable wire (19).
15. Device according to one of the Claims 9-14, whereby three joining contrivances designed as welding contrivances.....
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19721482.7 | 1997-05-23 | ||
| DE19721482 | 1997-05-23 | ||
| PCT/EP1998/002547 WO1998052867A1 (en) | 1997-05-23 | 1998-04-30 | Method and device for producing packet spring cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2291036A1 true CA2291036A1 (en) | 1998-11-26 |
Family
ID=7830214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002291036A Abandoned CA2291036A1 (en) | 1997-05-23 | 1998-04-30 | Method and device for producing packet spring cores |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0983207A1 (en) |
| JP (1) | JP2001525708A (en) |
| CA (1) | CA2291036A1 (en) |
| DE (2) | DE19822838C2 (en) |
| WO (1) | WO1998052867A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0103171D0 (en) | 2001-02-08 | 2001-03-28 | Smithkline Beecham Biolog | Vaccine composition |
| DE102008061466A1 (en) * | 2008-12-10 | 2010-07-15 | Agro Holding Gmbh | Pocket spring core, has multiple springs lying in pocket, which is made of textile material including water-jet nonwoven, and cover layers connected with spring lines, which are arranged parallel to each other |
| PL2565152T3 (en) * | 2011-08-30 | 2014-11-28 | Spuehl Ag | Device for forming a hose out of pocket material and method for producing a pocket row of springs |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5572853A (en) * | 1994-08-15 | 1996-11-12 | Simmons Company | Method and apparatus for conditioning pocketed coil springs |
| DE9421295U1 (en) * | 1994-10-04 | 1995-11-23 | Hoffmann GmbH, 96145 Seßlach | Micro spring core |
| DE19529913A1 (en) * | 1995-08-15 | 1997-02-20 | Spintex Ag | System for storing and conveying strings of pocket springs for e.g. mattresses |
| JP2933203B2 (en) * | 1995-09-21 | 1999-08-09 | 松下工業株式会社 | Pocket coil spring structure assembly device |
| JP2895791B2 (en) * | 1995-12-25 | 1999-05-24 | 松下工業株式会社 | Pocket coil spring manufacturing equipment |
-
1998
- 1998-04-30 CA CA002291036A patent/CA2291036A1/en not_active Abandoned
- 1998-04-30 JP JP54986198A patent/JP2001525708A/en active Pending
- 1998-04-30 EP EP98924248A patent/EP0983207A1/en not_active Withdrawn
- 1998-04-30 WO PCT/EP1998/002547 patent/WO1998052867A1/en not_active Application Discontinuation
- 1998-05-22 DE DE19822838A patent/DE19822838C2/en not_active Expired - Fee Related
- 1998-05-22 DE DE19822839A patent/DE19822839A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0983207A1 (en) | 2000-03-08 |
| WO1998052867A1 (en) | 1998-11-26 |
| DE19822838A1 (en) | 1998-11-26 |
| DE19822838C2 (en) | 2000-11-02 |
| DE19822839A1 (en) | 1999-01-21 |
| JP2001525708A (en) | 2001-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |