JPH0385232A - Packing method of compressed materials and apparatus - Google Patents

Abstract

PURPOSE: To pack articles by arranging a plurality of articles with wider faces overlapped with each other, pressing the wider sides to compress the articles, and inserting the articles into a bag in the direction orthogonal to the compressing direction to maintain the compressed condition. CONSTITUTION: A plurality of folded articles, e.g. diapers are arranged with wider side in contact with each other, and arranged in a container 11. The container 11 is moved on a belt 12 and reaches an entrance of a packing device, and stopped by a stopper 13. A slide member carries out the stacked diapers in two containers 11 from the container 11 to a compression station 14. The diapers are compressed by driving a compression jaw 15, a stopper 18 is moved downward to move the compressed diapers in the horizontal direction. The diapers are passed through between guide walls 21 of a carrying means 22, and carried on a base layer 23, and a bag is pulled in over a free end 24 or the guide walls 21. A plurality of diapers are moved into the bag by the slide member, and moved from a carrying station, and sealed.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a method and apparatus for packing compressed articles such as diapers, napkins, etc. into bags.

Articles such as diapers, diapers, napkins, etc. are made of flexible or elastic materials. Therefore, the volume of these articles can be significantly compressed by applying high pressure.

These items can be compressed to save space during transportation and storage. but,
During compression, an opposing force is created which tends to return the articles to their normal volume.

SUMMARY OF THE INVENTION It is an object of the invention to provide a method and a device for packing compressed articles into bags which is simple and inexpensive to implement and which reliably maintains the compressed state.

According to the invention, the aforementioned object is achieved by a method according to claim 1. In this method, it is possible to introduce the compressed article into the bag in its compressed state and then seal the bag. It is possible to use a bag that is not flexible in the direction in which the compressed article tends to expand to its original volume. In that case, the shape of the bag ensures the compressed state of the article.

In another aspect of the invention, the articles are stacked and compressed horizontally into the bag. In this case, since each article can be arranged on a flat base layer, it is possible to stack the articles with the t direction set accurately. Stacks of articles can be held on the same substrate during horizontal movement, allowing for oriented loading into the bag.

According to this invention, the stacked articles do not break or bend on the entire surface. This is especially suitable when performing packs at high pressures. This is because the stacked articles tend to bend laterally in such situations.

In this invention, air cushions are generated at multiple points as the stacked articles are moved to reduce friction. This significantly reduces friction and at the same time avoids damage to the compressed articles. In particular, it can be provided that the air cushion is formed and activated only in the vicinity of the stacked articles during movement.

Movement of such articles can be carried out by means of slide members. All-round straps are provided so that the compressed articles are moved in a stacked manner toward and in contact with each other. The straps can be supported by freely rotatable rollers. In this invention, the compressed state of the article is maintained during sliding movement.

According to the invention, an air cushion can be formed when using a strap. It forms an air cushion, especially at the strap, reducing friction between the strap and the base layer.

The invention also relates to a device according to claim 10.

The stacked articles to be backed up are slid between the two jaws of the compression station by means of a slide member.

These stacked items are moved one after the other, effectively moving both items toward a common central plane,
The stacked articles are thereby compressed. Of course, it is also possible to fix one of the legs and move only the other one. After the compression step 4 is completed, the slide member into which the article is inserted between the two compressing chambers is slid back and removed from the chamber.

The conveying means carries out the compressed stacked articles and puts them into the bag. This movement may be effected solely by the conveying means or with the aid of sliding members.

In the normal case, the guide wall of the conveying means is not of variable spacing and is remote from the compression station. In order to move the compressed articles from the compression station to the conveying means, the invention includes a drivable strap on the compression jaw. These compression tubes allow the straps to move inside. Therefore, these straps are activated only when compression is applied. The strap can be driven intermittently. The straps can be supported by rollers across the width of the compression jaw.

According to the invention, the compression jaws are provided with a plurality of compression jaws and a device for forming an air cushion between the straps and/or the compression articles. This air cushion reduces friction and facilitates transfer to the conveying means.

In particular, the strap passes through the wall of the compression chamber with an air outlet. An air cushion is then formed between the strap and the corresponding wall of the base layer or compression shell.

However, it is also possible to form the air cushion directly between the compressed article and the compressed tube. In this case, the compressed article can be slid out of the compression chamber by operating only the slide member after the compression step is completed.

In another aspect of the invention, a driving rotary strap is movably provided inside the guide wall of the conveying means. This strap is used to further transport already compressed articles. This strap can be supported by a plurality of rollers along the entire length of the guide wall.

Also, each of the guide walls can be provided with means for forming an air cushion between the guide wall and the strap and/or the compressed article.

It is also possible to move the strap past a guide wall with an air outlet to create an air cushion between the guide wall and the strap, reducing friction between the strap and the guide wall.

In a further aspect of the invention, the air outlet is provided with valve means operable by the article to be packed;
Air cushions are formed only in the vicinity of the article.

In particular, each air outlet allows each valve to slide so that it can be actuated either directly or via a strap by an article passing past it.

In yet another aspect of the invention, the width of the slide member corresponds to the thickness of the compressed stacked article. Thereby, the sliding member acts on the entire lateral surface of the stack to ensure movement of the compressed stack in a predetermined direction.

In this invention, if the strap is not provided on the guide wall and the friction is reduced only by the air cushion formed between the article and the guide wall, the movement path of the sliding member is such that the article can be slid into the bag. You can choose. This approach is effective when multiple straps are provided for transport purposes.

This is because the sliding member prevents the stacked articles from bending.

The slide member can also be used to slide a full bag off the transport means and transfer it to another station where it is sealed.

In order to prevent the stack of articles from bending during compaction, the invention can provide a stop member that can be inserted into and removed from the conveyor path or conveyor belt near the entrance and exit of the compaction station. Preferably both stop members can be actuated independently of each other.

The stop member may have a central portion approximately corresponding to the thickness of the compressed stacked article and may be provided with pivoting flaps on the sides of the central portion. Thereby it is possible to ensure that during the compaction process the corner parts of the stacked article are not pressed against the sides of its central part.

In a further embodiment of the invention, the guide walls can be rotated about an axis perpendicular to the conveying direction in order to reduce the mutual spacing of the free ends of the two guide walls. This makes it relatively easy to ensure that the bag with the opening can be easily pulled out over the end of the guide wall and is taut when the wall is pivoted back into its original position.

Its axis points toward the compression station and away from the end of the guide wall. Thereby, the transfer between the compression chamber and the guide wall of the compression station can be made easier.

Further features, details and advantages of the invention will become apparent from the claims and the following description of preferred embodiments with reference to the drawings.

FIG. 1 is a perspective view showing a diagram of a plant for packing diapers in a compressed state. Descriptions made below with respect to diapers are applicable to any other article made of compressible material. A diaper is explained as an example of a compressible article, and the present invention can also be applied to any other articles such as diapers, napkins, and towels. Now, multiple diapers are already made in a stacked state. In other words, in the folded state, multiple normal diapers are arranged so that their wide surfaces touch each other. These stacked diapers are arranged in each container 11. These containers 11 are connected to a passageway or belt 12
, until it reaches the pack device shown. The container 11 is stopped by a stop 13 as soon as it reaches the entrance of the packing device.

The stop 13 is a rotary stop member that rotates about a horizontal axis to stop the container 11 in the illustrated position.

On the other hand, when the stops 13 are tipped downwards, the containers 11 can be transported further.

In the illustrated apparatus, a compression station 14 is provided along and on the side of the belt 12. A slide member (not shown) acts rearward from the right side of the container 11 in the open state, and carries out the stacked diapers installed in the two containers 11 located in front of the compression station 14 from those two containers 1t. and moved to compression station 14. After the slide member is retracted from the empty container 11, the stop 13 is pushed down and the container 11 is conveyed by the belt 12, and the container t1 is filled with diapers again. By the way, the diapers in a stacked state are arranged at a compression station, and this compression station 14 is provided with two compression jaws 15. Both posts 15 are movable in a direction parallel to the belt 12 or in a direction perpendicular to the inside of the posts 15. Transfer of the diaper between the inside of the container 11 and the compression tube 15 is facilitated by an inversion or guide wall 16. These walls 16 are rotatable so that they do not interfere with the movement of the compression jaw 15. The two compression jaws 15 are moved closer together from the open position shown into the compression position. In the compressed position, the space or distance between the two diapers 15 is reduced, so that the diaper placed between them is compressed to the desired dimensions. In order to prevent the stacked diaper from bending laterally during this compression movement, a stop 17, 18 is provided at the inlet and outlet of the compression station 14, respectively. As shown in FIG. 1, the stop 17 is located on the population side and is pulled out downward in the state shown. Following loading of the diaper, a stop 17 is slid into the transport path to prevent the stack of diapers from bending back and forth. Base 19 serves to prevent the diaper from bending downward. A cover (not shown for simplicity of illustration) may be provided above the stacked diapers in parallel with the base 19 to prevent the diapers from bending upward. During the compaction process, these guide plates are moved away from the product.

After compressing the stacked diapers by moving the two compression jaws 15 together, the stop 18 is moved downward to move the compression diapers laterally in the stacked state. At this end each compression jacket 15 has an all-round strap 20. Strap 20 is supported by a plurality of rollers (not shown) near the compression jaw. In this way, or supported by another slide member, the stacked diapers pass between the two guide walls 21 of the conveying means 22. This is the movement that follows the movement to compression station 14. At this transport station, a plurality of diapers are transported in a compressed state over the base layer 23 until they are near the free end 24 of the transport station. On the other hand, the free end 24 of the transfer station or the bag (not shown) beyond the guide wall 21
is drawn in. The free end of the guide wall 21 then touches the bottom of the bag. A charging flap 25 is provided for pulling the bag past the transfer station. This charging flap 25 itself is known and will therefore not be described in detail. Once the stacked diapers are inside the bag, a slide member (not shown) (i.e., used to remove the diapers from the compression station 14) slides the diapers into the bag. and move them together from the transfer station. A sealing operation is then performed.

In the embodiment of the invention shown in FIG.
has.

These straps are supported by rollers (not shown) in the area where they act on the diaper in the compression station 14 and the transfer station 22. At compaction station 14, only rollers 27 and 28 are shown. These rollers 27 , 28 are the first and last rollers of the compactor 15 . The strap 20 extends to a large diameter drive roller 29. The driving roller 20 is for driving the strap 20. The strap 20 of the compression jaw 15 is driven intermittently. This is so that when the diapers 15 move towards each other during the actual compression operation, no further movement of the diaper is necessary. Also in the case of the transport station 22, only the first and last rollers 30, 31 together with the guide roller 32 and the drive roller 33 are representatively shown.

Similarly, in order to prevent the stacked diapers from bending upward in the transport means 22, the guide wall 21 can be provided with an upper cover. These covers extend at a constant distance from the two guide walls 21.

FIG. 2 is a plan view of the embodiment of FIG. 1.

A stack of diapers, indicated generally by the reference numeral 34, is located within the transfer station 22. In the illustrated embodiment, the diaper 34 is attached to the straps 26.
It is not only moved by the movement of the slide member 35, but also moves by cooperation with the slide member 35.

This slide member 35 has a slide plate or bush plate 36, and is adapted to act on the lateral surface of the diapers 34 in a stacked state.

As can be seen schematically from FIG. 2, the guide walls 21 of the transport station 23 with the straps 26 and the rollers 30-33 are each arranged on a base plate 37. Base plate 37 has mounting supports for each roller. As can be seen from the right half of FIG. 2, the inside of the guide roller is located in the lateral extension of the inside of the compression jaw 15. As the stacked diapers 34 are slid from the compression station 14 to the transfer station, their thickness and compression are maintained.

As seen in FIG. 2, straps 26 of transfer station 22 and straps 20 of compression station 14
A small space must be created in the transition between. This is so that the straps 20, 26 can be moved. Therefore, a recess (gap) is formed there.

That is, a recess is formed between the guide rollers 27 and 30. Because the stacked diapers are compressed with such great pressure, problems can arise where the diapers are forced into the gaps. This problem is solved by two guide walls 21
can be removed in advance by using the structure described below. That is, referring to the embodiment shown in FIG. 3, this embodiment is constructed similarly to the embodiment shown in FIG. 2, but is constructed as a second embodiment. In the embodiment of FIGS. 1 and 2, the stop 26 is supported by a number of rotating rollers 38 over the entire distance that the strap 26 acts on the overlapping shim 34. On the other hand,
In the embodiment of FIG. 3, the straps 20 of the compressor 15 and the straps 26 of the transfer station 40 extend past supported by solid walls 41, 42 in their active areas. An air outlet is formed in the wall 41,42 on the side facing the diaper. These configurations will be explained later. Corresponding sides of walls 41.42 and straps 26.2 guided by them
An air cushion is formed between the two, and the air cushion is used to reduce the friction between the two.

Both the base plate 37 or the guide wall 21, to which the aforementioned wall 21 is fixed, are arranged for rotation about an axis 43. This axis 43 is located generally inside the guide wall 21 and is perpendicular to the transport direction of the base plate 23 or the stacked diapers 34. However, the axis 43 is at some distance from the guide wall 21 or the end of the conveying means facing the compression station 14. Two guide walls 21
As the rollers 31 forming the free end of the guide wall 21 move closer to each other, as the rollers 31 rotate about the axis 43. Pulling the bag over the guide wall 21 is facilitated with the aid of the charging flap 25 shown in FIG. The stacked diapers 34 are loaded into the bag. This rotational movement becomes effective if the position of the axis is determined appropriately. That is, the rollers 30 facing the compression station 14 move slightly outwards, so that the stacked diaper no longer enters the recess (gap) between the rollers 27 and 30, but instead moves somewhat outwards. It is elastic and can be carried without difficulty by the straps 26. The slight compression losses caused by the rotational movement are recovered during further movement of the guide wall 21 back into its original position.

FIG. 3 shows the transfer station 4 from the compression station 14.
The compressed stacked diaper 34 is shown just before transitioning to zero.

FIG. 4 shows a significantly simplified alternative embodiment. In this embodiment, the compression jacket does not have straps. Instead, an air outlet is provided in the compression face 44. This is similar to the embodiment of FIG. 3, but an air cushion is formed between the faces 44 and the stacked diaper 34. After compression, it is necessary to form an air cushion when the stacked diaper 34 is slid laterally with the aid of the slide member 35.

In the embodiment of FIG. 4, the guide wall 21 of the transfer station has a similar construction to the corresponding wall of the compression station 14. These guide walls 21 are constructed as walls 45 with an air outlet on the upper surface 46 . As a result, an air cushion is formed, and the action of the slide member 35 allows the stacked diapers 34 to be slid through. Also in this embodiment, the side wall 21 is connected to the shaft 4.
Rotated around 3. The wall 45 is the wall 4 of the compression chamber 15.
You can move it closer to 4.

FIG. 5 shows an enlarged sectional view of the guide wall in the embodiment of FIGS. 1 and 2. FIG. The guide wall has lower and upper webs 48,49. Rollers 38 (FIG. 2) are set in corresponding holes between these webs 49.

Strap 26 passes on both sides of roller 38. Baffle plates 50, 51 are fixed to the upper and lower surfaces of these webs 48, 49. This prevents each diaper 52 from moving up and down. Of the many compressed diapers 52, two representative ones are shown in FIG. These diapers 52 are supported under pressure on the inner portion of the straps 26 via rollers 38.

FIG. 6 corresponds to FIG. 5 and shows a cross section of the embodiment of FIG. 3. In the embodiment of FIG. 6, the outer plate 53 of the guide wall 21 extends over the entire length and height of the guide wall 21. On the side facing the guide wall 21, the recess 54 of the plate 53 is open. A cover plate 55 is fixedly arranged inside the plate 53 and has equally spaced air outlets 56 connected to the recesses 54.
It has many. At any point, this recess 54 is connected to a source of compression so that air can flow out through an air outlet 56. This air flow is directed to the other guide wall 2
An air cushion is formed between the inner side 57 facing 1 and the inner strand of rotating strap 26. therefore,
This strap is supported by an air cushion and not by the rollers 38 of FIG.

Baffle plates 50,51 are fixed to the top and bottom surfaces of plate 53, respectively. As in the embodiment of FIG. 5, the baffle plate 50.51 is bent outside the guide wall 21 so that the strap 26 passes between the guide wall 21 and the bent leg 58 of the baffle plate 50151. ing.

FIG. 7 is a diagram corresponding to FIGS. 5 and 6, and is a diagram corresponding to FIG.
Figure 3 shows a cross-section of the illustrated embodiment;

In the example of FIG. 7, no straps are used. The guide wall plate 53 has a recess 54 and the other guide wall 21
The side facing is covered by a cover plate 55. This cover plate also has an air outlet 5 for the recess 54.
4 is provided. In the embodiment of FIGS. 4 and 7, an air cushion is formed between the guide wall 21 and the stacked diaper 34.

In both the embodiments of FIGS. 3 and 6 and the embodiments of FIGS. 4 and 7, the air cushion is formed only in the area where the stacked diaper 34 is located. Set up a valve,
The air outlet 56 is only in the area where the stacked diaper 34 is present.
to open up. These valves are actuated by the actual stacked diaper 34. In order to enable a lateral delimitation of the air cushion, groove-like recesses can be provided in the upper surface 57 facing towards the cover plate 55. The overlapping diaper 34 or straps are pressed against it somewhat to form an air seal. Details of such a valve are shown in FIG.

FIG. 8 shows a longitudinal section of the guide wall 21 of the embodiment of FIGS. 4 and 7. FIG. Each valve element 5 in a recess 54
9 so that the air outlet 56 can be sealed. The valve elements 59 are guided at one end into the blind bore 60 such that the end 61 passes through the air outlet 56 . This end portion 61 has a slope shape, that is, an inclined shape, so that when the diaper moves, that is, when the diaper moves from the left side to the right side in FIG. 8, the sloped shape of the end portion 61 exerts a downward force. It has become. The valve element 59 is provided with an all-round flange 62 which prevents the valve element from exiting the air outlet 56. In this position (ie in the position of FIG. 8) the valve element 59 is under the action of the compression spring 63. This spring 63
extends between flange 62 and the inside of recess 54 .

At the flange 62 located opposite the spring 63 the valve element 59 has a diametrically oriented bore 64 . This hole 64 is connected to an axial hole 65. This hole 65 continues from the outside of the projection 61. As soon as the valve element 59 is urged by the spring 63 into the closed position, ie, in a position such as the one on the right in FIG. 8, both sides of the hole 64 are sealed. When the stacked diaper 34 comes to the point where the valve element 59 protrudes from the guide wall 21,
The diaper 34 acts on the sloped end surface 61, thereby forcing the valve element 59 downwards. Therefore, both ends of the hole 64 are opened as shown on the left side, and compressed air passes through the hole 64 and the hole 65. This air passing through forms an air cushion near the stacked diaper 34. The stacked diaper 34 is again connected to the valve element 59
As soon as it leaves the valve element 59 is in the right-hand position and the air outlet 56 is closed. Instead of such a valve 61, it is also possible to use a solenoid valve and connect it to the outlet by a duct.

FIG. 9 shows a part of the guide wall 21 with a device for forming an air cushion.

A part of the cover plate 55 is shown in a broken state so that the recess 54 of the plate 53 is visible. Guide wall 21
A longitudinal groove 66 is formed in the inner side 57 of the cover plate 55 parallel to both longitudinal edges of the cover plate 55, i.e., the upper and lower edges. The cross-sectional shape of these grooves 66 is somewhat curved. A large number of air outlets 56 are formed between these grooves 66, each of which is provided with a valve element 59 as shown in FIG. The details are not shown in FIG. 9 for the sake of simplicity. These grooves 66 direct the air cushion as a uniform escape air in the sliding direction. This protects the loosely engaging film on both sides of the groove 66 and in the peripheral area from being destroyed.

Similar to the guide wall 21 of FIG. 9, the compression wall 44 can be constructed. The elongated grooves 66 can cooperate not only with the actual diaper but also with the straps 20 or 26.

Although FIGS. 2-4 show three different configurations for the transfer station and compression station, it is clear that combinations of these three configurations are possible. The use of friction-reducing air cushions instead of rollers reduces the number of components when packing different sized items or using guide walls of varying lengths, allowing for the flexibility of different dimensions. The remarkable effect is that it is extremely easy to apply.

FIG. 10 schematically shows the stop 18 and the compression station before compression begins. The stops 18 have a central part 60 and each have short flaps 61,62 on the extension of the central part. Central part 60 and flaps 61.6
2 is structured as follows. That is, the side facing the compressed stack of articles (i.e. the right side in FIG. 10) is configured to pass approximately through the center of the guide roller 27 of the compacting chamber 15 associated with the compacting station outlet. When the compression is started, i.e. when the compression jaws begin to approach each other, the flaps 61, 62 move towards the central part 6.
0, the corresponding roller 27 is guided beyond its inside, and the two compression jaws 15 reach the end position of the compression movement, as shown in FIG. The roller 27 is moved until. The length of the central portion 60 corresponds approximately to the mutually inner spacing of the two compression jaws 15 in this position, in which the two compression jaws 15 are in their closest position. By configuring the stop 18 in this way (although the same applies to the stop 17),
Compression deformation of the edges of the overlapping diapers in the starting and ending areas of the compression station is avoided. Of course, other configurations of the stop 17 or 18 are also possible. However, when compressing stacked diapers, in order to prevent the stacked diapers from stretching, and more specifically, from stretching unevenly,
The aforementioned types of stops are most suitable.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the apparatus of the present invention. 2 is a plan view of the apparatus of FIG. 1; FIG. FIG. 3 is a plan view of the second embodiment. FIG. 4 is a plan view of the third embodiment. FIG. 5 is an enlarged sectional view of the guide wall of the embodiment of FIGS. 1 and 2. FIG. FIG. 6 is a sectional view corresponding to FIG. 5 in the embodiment of FIG. 3. FIG. 7 corresponds to FIG. 6 and is a sectional view of the embodiment of FIG. 4. FIG. 8 is a sectional view showing the guide member of FIG. 7. 9 is a perspective view showing a part of the embodiment of FIG. 7. FIG. FIG. 1O is a diagram showing an example of the arrangement of stops in the embodiment of FIG. 1. FIG. 11 is a diagram showing the compression position of the compression station of FIG. 10. 1 construction...Container 12...Belt 13...Stop 14...Compression station 15...Compression station 16...Wall 17.18...Stop 19...Base 20...Strap 21... Guide wall 22... Conveyance means 23... Base layer 25... Flap 26... Strap 27. 28... Roller 29... Roller 35... Slide member 36... Slide Plate 37...Base plate 41,42...Wall 40...Transfer station 43...Axle 48,49...Web 50,51...Baffle plate 54...Recess 55...Cover Plate 56... Air outlet 59... Valve element 60... Hole 6 3... Compression spring 64, 5... Hole 6... Groove FIG, 6 FIG, 7 FIG, 8 FIG, 10

Claims (1)

[Claims] 1. A method for packing compressed articles into a bag, comprising the following configuration: 1.1 A plurality of articles are arranged with their wide sides stacked one on top of the other. 1.2 The stacked articles thus formed (3
4) is compressed by pressing the wide sides of the first and last articles (34) in the stack; To be inserted in the direction. 2. The method of claim 1, wherein the stacked articles (34) are moved in horizontal compression. 3. The method of claim 1 or 2, wherein the stacked articles (34) are protected over their entire surface from bending during compression. 4. A method according to any of the preceding claims, forming an air cushion to reduce friction when moving the stacked articles (34). 5. Claim 4, wherein the air cushion is formed only near the stacked articles (34) and moves therewith.
the method of. 6. Method according to any of the preceding claims, characterized in that the stacked articles (34) are moved with the aid of rotating straps (20, 26) acting on their sides. 7. The straps (20, 26) are rotatable rollers (
27, 28, 30, 31, 32, 38). 8. A method according to any preceding claim, wherein compression of the stacked articles is maintained during the movement. 9. A method according to any of the preceding claims, wherein an air cushion is formed under the strap (20, 26). 10. A device for packing compacted articles into bags, having the following configurations: 10.1 A compaction station (14) 10.1.1 Two approximately parallel compaction stations (15) provided therein 10.1.2 Their mutual spacing is reducible 10.2 Slides (35) 10.2.1 Slides are capable of compressing their space (15)
10.2.2 the slides to slide the article to be compressed between their jaws (15); 10.2.3 the slides to move from the compression jaws (15) 10.3 Sliding out the compressed article 10.3 Conveying means (22, 40) for introducing the compressed article into the bag 10.3.1 The conveying means lateral to the compressed article (15) in the compressed position Two guide walls (2
1) 10.3.2 Be able to slide the bag over the end of the conveyance means. 10.3.3 The ends of the guide walls (21) extend approximately to the bottom of the bag 11, and the compression jaws (15) have drive straps (20) movable beyond their insides. equipment. 12. Claim 11, wherein the strap (20) is supported by rollers over the entire width of the compression jacket (15).
equipment. 13. Device according to any one of claims 10 to 12, wherein the compression tube (15) has a device for forming an air cushion between the compression tube and the strap (20) and/or the compression article. 14. Device according to claim 13, characterized in that the device for forming an air cushion has a compressed air filling recess (54) with an air outlet (56) in the side of the compression chamber (15). 15. Device according to claim 14, characterized in that the strap (20) is configured to pass through the wall of the compression tube (15) provided with an air outlet (56). 16. Device according to any one of claims 10 to 15, characterized in that the guide wall (21) of the conveying means (22, 40) has a rotary drive strap (26) arranged movably beyond its inside. . 17. Device according to claim 16, characterized in that the strap (26) is supported by rollers (38) over substantially the entire length of the guide wall (21). 18. Device according to any one of claims 10 to 17, wherein each guide wall (21) has an air cushion production device between the guide wall and the strap (26) and/or the compressed material. 19. The device that forms the air cushion is the guide wall (21)
19. The device according to claim 18, having a compressed air filling recess (54) with an air outlet (56) on the side of the device. 20. Claim 19, wherein the strap (26) is configured to pass through the guide wall (21) provided with the air outlet (56).
equipment. 21. Apparatus according to claim 19 or 20, characterized in that the air outlet (56) is provided with valve means operable by the articles to be packed to form an air cushion at the location of those articles. 22, a compressed article (34) in which the width of the slide (35) is overlapped
) corresponding to the thickness of any one of claims 10 to 21.
Equipment described in Section. 23. Claims 10 to 2, wherein the travel path of the slide (35) is selected such that the article can be slid into the bag.
2. The device according to any one of 2. 24. Stops that can be moved outside the conveyance path (17, 18)
) are provided at both the inlet and the outlet of the compression station (14). 25, the stops (17, 18) are stacked compressed articles (3
4) having a central portion (60) corresponding to the thickness of the central portion and rotatable flaps (61, 62) on the sides of the central portion;
25. The apparatus of claim 24. 26, in order to reduce the mutual space between the free ends of both guide walls (21), the axis (43)
26. A device as claimed in any one of claims 10 to 25, wherein the device is rotatably arranged around a. 27. Device according to claim 26, characterized in that the shaft (43) is remote from the end of the guide wall (21) facing the compression station (14).