WO2017211589A1 - A clamp device for an apparatus for spreading cloth and a laundry article handling apparatus comprising at least one such clamp device - Google Patents

A clamp device for an apparatus for spreading cloth and a laundry article handling apparatus comprising at least one such clamp device Download PDF

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Publication number
WO2017211589A1
WO2017211589A1 PCT/EP2017/062575 EP2017062575W WO2017211589A1 WO 2017211589 A1 WO2017211589 A1 WO 2017211589A1 EP 2017062575 W EP2017062575 W EP 2017062575W WO 2017211589 A1 WO2017211589 A1 WO 2017211589A1
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WO
WIPO (PCT)
Prior art keywords
cylinders
housing
clamping
piston
face
Prior art date
Application number
PCT/EP2017/062575
Other languages
French (fr)
Inventor
Torben Westh JENSEN
Original Assignee
Jensen Denmark A/S
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jensen Denmark A/S filed Critical Jensen Denmark A/S
Publication of WO2017211589A1 publication Critical patent/WO2017211589A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/04—Arrangements for feeding or spreading the linen

Definitions

  • a clamp device for an apparatus for spreading cloth and a laundry article handling apparatus comprising at least one such clamp device
  • the present invention relates generally to apparatuses for spreading laundry articles (usually flat-work articles such as bed-sheets, tablecloths, pillow cases and the like) to be fed to machines for further processing of the articles, such as ironing machines.
  • laundry articles usually flat-work articles such as bed-sheets, tablecloths, pillow cases and the like
  • machines for further processing of the articles such as ironing machines.
  • such apparatuses comprise carriages movable along guideways and carrying clamp devices for gripping adjacent corners or edges of the particular article.
  • carriages each with its respective clamp device, are drawn apart, the leading edge of the suspended article is stretched across the entry of a conveyor configured for leading the article to a machine for further processing.
  • the article is released from the clamp devices and trans- ferred to the conveyor by a transfer mechanism.
  • the clamp device may be assembled in a highly convenient manner using a tool rotating a piston part of a piston, thereby securing one of the clamping jaws to a housing to which the pressurised fluid, preferably air, is supplied.
  • the pressurised fluid preferably air
  • the jaws are provided with a surface pattern allowing for an extremely reliable clamping of the cloth, this being of particular use where suspended cloth is heavy, such as when wet, and/or where the cloth is subjected to high stretching forces which may be the case where the aforemen- tioned carriages stop only after some stretching has occurred.
  • This invention also provides a laundry article handling apparatus comprising at least one pair of article clamping devices, each having fluid pressure operated means for closing the clamping device jaws to hold an article there between, carriages for moving the clamp devices between article receiving and article release positions, the clamp devices having inlets to cooperate with an outlet for a source of pressurized fluid, and having release means allow the article to be released from the clamp devices, and actuators at the release position for operating the release means.
  • FIGS. 1 a and 1 b are perspective view of the presently preferred embodiment of the clamp device
  • Fig. 2 is a perspective bottom view of a housing of the device
  • Figs. 3a, 3b and 3c show a clamping jaw of the device of fig. 1 a, fig. 3c show- ing the clamping jaw without a central closure,
  • Figs. 4a and 4b are longitudinal cross-sectional views showing, respectively, the housing of fig. 2 and the clamping jaw of fig. 3a with a piston, ready for assembly,
  • Fig. 5 is a longitudinal cross-sectional view showing for clarity only how the piston of fig. 3a is fixed to the housing of fig. 2,
  • Figs. 6a and 6b shows the clamp device in the open and closed positions, respectively
  • Figs. 7a and 7b are cross-sectional views of the clamp device in the configuration shown in fig. 6b, through two respective chambers for pressurised flu- id, and
  • Fig. 7c shows the piston shown in fig. 4b.
  • the clamp device 10 of the invention is mounted on a movable carriage (not shown) as described above and generally comprises - as shown in figs. 1 a and 1 b - a first elongated clamping jaw 20 with a first clamping face F1 , a housing 50, and a second elongated clamping jaw 30 with a second clamping face F2 oriented towards the first clamping face F1 .
  • the second clamping jaw 30 is mounted to be displaceable relative to the housing 50 into a clamping position with the second clamping face F2 closer to the first clamping face F1 , for holding a flat article of cloth, and vice versa, i.e. back again to the non-clamping position shown in fig. 1 a.
  • the entry into the gap between the clamping jaws 20, 30 widens up for easy insertion of a flat article of cloth prior to displacement of the clamping jaw 30 to the clamping position.
  • the housing 50 is connected to the first jaw 20 and to the carriage (not shown).
  • Conduits 15, 16 supply pressurised fluid for bringing about the desired displacement; pressurised fluid, preferably air, is supplied to the one or the other conduit 15, 16 depending on the position of the aforementioned carriage.
  • Typical dimensions of the device 10 may be in the following ranges: height 6- 8 cm, width 4-6 cm, and length measured from the end 52 of the housing 16- 20 cm.
  • one, F2 of the two clamping faces F1 , F2 may have a pattern of raised/projecting surface portions 31 whereas the other, F1 , of the clamping faces may have a pattern of recesses 21 arranged opposite to and to be aligned with the raised surface portions 31 in the clamping position whereby, depending on the displacement of the second clamping jaw 30, the recesses 21 may receive the raised surface portions 31 .
  • This arrangement provides particular advantages where a high local clamping pressure on the article is required, such as where the clamping must take into account forces seeking to pull out the article and acting along the length of the clamp and transver- sally thereto; a two-dimensional pattern, such as a zig-zag continuous pattern of raised portions 31 , may be envisaged.
  • Fig. 2 shows the housing 50 which is defined in part by a peripheral wall W1 delimiting a hollow having two cylindrical pistons 55, 55', spaced apart to receive therebetween yet another piston on assembly of the clamp device 10. While in the following the invention will be discussed with reference to a preferred embodiment having two such pistons 55, 55' mounted to the housing 50, only one such piston 55 operating together with a further piston as described below may be envisaged. The shown embodiment is preferred in providing a highly uniform clamping force against an article held between the two jaws 20, 30.
  • Figs. 3a and 3b show details of the second clamping jaw 30 before assembly with the housing 50.
  • the second jaw 30 is a body having a bottom defining the clamping face F2, and a peripheral wall W2 defining a number of cylindrical recesses, each in the following being referred to as cylinders and referenced by numerals 35, 35' and 40.
  • Two of the cylinders are sized to matingly receive a respective one of the pistons 55, 55'; where only one piston 55 is in the housing 50 normally only two cylinders 35, 40 will be comprised by the body defining the second jaw 30.
  • a central cylinder 40 referred to in the appended claims as the "first one of the cylinders", and the cylinders 35, 35', referred to in the appended claims as the "other one(s) of the cylinders", have respective bottom surfaces 37, 37', 41 defining respective first ends of the cylinders proximal or nearest the second clamping face F2.
  • a respective second end of the cylinders distal to the second clamping face F2 is referenced by numerals 42, 36 and 36'.
  • Shown in figs. 3a and 3b is a removable ring-shaped closure 44 defining together with an O-ring S2 the first end 42 of the central cylinder 40 and having an aperture 46 for a first piston part 65 to be discussed further below.
  • the closure 44 may be fixed by screws 39, as shown.
  • a top wall W to be covered itself by a structure including conduits 15, 16 for supply of pressurised fluid, has apertures with thread 58 into which threaded piston parts 57, 57' are screwed for fixing the pistons 55, 55' to the housing 30.
  • Each piston 55, 55' has a central passage 53, 53' for supply of pressurised fluid, as well as a sealing ring S located at piston head 56, 56', adjacent a downward face 54 thereof oriented away from the aforementioned piston parts 57, 57'.
  • a first step in the assembly of the clamp device 10 involves positioning the further piston 60 briefly mentioned above in the first cylinder 40; this further piston 60 is shown in details in fig. 7c and has an elongated piston part 65 with thread 66 (not shown) at one end and a piston head 61 at the other end.
  • An O-ring S1 is secured to the piston head 61 and another O-ring S2 extends around the elongated piston part 65 below the thread 66.
  • a central passage 63 (see fig. 4b) through the elongated piston part 65 opens up at openings 63' above a face 62 of the piston head 61 , this face 62 being oriented, i.e. facing, towards the elongated piston part 65.
  • the piston 60 is inserted into the cylinder 40 with the closure 44 removed, as shown in fig. 3c.
  • the closure 44 is then applied, with the end of the piston part 65 extending through the aperture 46 formed in the closure 44.
  • a chamber C1 shown in fig. 4b is formed between the upper face 62 of piston head 61 and the upper end of the cylinder 40 which is defined by the lower face 42 of the O-ring S2 which fits tightly around the piston part 65. Pressurized fluid may be supplied to this chamber C1 through the passage 63 and then the openings 63'.
  • the central passage of piston 60 conveniently has locally a polygonal cross-section portion 64 for engagement with a complementary tool for rotating the piston part 65 relative to the housing 50 and cylinder 40.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

Laundry article handling apparatus comprising at least one pair of article clamp devices (10), each having fluid pressure operated means (55, 55') for closing the clamp device jaws (20, 30) to hold an article therebetween, carriages for moving the clamp devices (10) between article receiving and article release positions, the clamp devices (10) having inlets (15, 16) to cooperate with an outlet for a source of pressurized fluid, and having release means allowing the article to be released from the clamp devices (10), and actuators at the release position for operating the release means.

Description

A clamp device for an apparatus for spreading cloth and a laundry article handling apparatus comprising at least one such clamp device
Technical field
The present invention relates generally to apparatuses for spreading laundry articles (usually flat-work articles such as bed-sheets, tablecloths, pillow cases and the like) to be fed to machines for further processing of the articles, such as ironing machines.
Background of the invention
Typically, such apparatuses comprise carriages movable along guideways and carrying clamp devices for gripping adjacent corners or edges of the particular article. When the carriages, each with its respective clamp device, are drawn apart, the leading edge of the suspended article is stretched across the entry of a conveyor configured for leading the article to a machine for further processing. The article is released from the clamp devices and trans- ferred to the conveyor by a transfer mechanism.
An example of such an apparatus is disclosed in US patent 5,815,963; the clamp devices disclosed therein are typically operated using pressurised air applied to cylinders for moving two clamping jaws together. For moving the jaws apart a spring may be used. Other exemplary apparatuses are dis- closed in US 2015/0361610, and in US patent 5,333,402 where figs. 14B and 14C show the typical spreading procedure.
It is a problem with the known clamp devices that they have relatively large dimensions and that springs, where used for moving the clamping jaws apart, are worn, requiring regular replacement. Summary of the invention It is one object of the invention to provide a clamp device for the aforementioned apparatuses, which clamp device may be designed with very small dimensions without compromising the effectiveness in holding the article or cloth to be spread, and where no springs are required for moving the clamp- ing jaws apart for release of the cloth.
This is achieved with the clamp device as defined in claim 1 . Embodiments are defined in the dependent claims; according to one embodiment the clamp device may be assembled in a highly convenient manner using a tool rotating a piston part of a piston, thereby securing one of the clamping jaws to a housing to which the pressurised fluid, preferably air, is supplied.
In one embodiment the jaws are provided with a surface pattern allowing for an extremely reliable clamping of the cloth, this being of particular use where suspended cloth is heavy, such as when wet, and/or where the cloth is subjected to high stretching forces which may be the case where the aforemen- tioned carriages stop only after some stretching has occurred.
This invention also provides a laundry article handling apparatus comprising at least one pair of article clamping devices, each having fluid pressure operated means for closing the clamping device jaws to hold an article there between, carriages for moving the clamp devices between article receiving and article release positions, the clamp devices having inlets to cooperate with an outlet for a source of pressurized fluid, and having release means allow the article to be released from the clamp devices, and actuators at the release position for operating the release means.
Brief description of the drawings An embodiment of the invention will now be discussed with reference to the drawings where Figs. 1 a and 1 b are perspective view of the presently preferred embodiment of the clamp device,
Fig. 2 is a perspective bottom view of a housing of the device,
Figs. 3a, 3b and 3c show a clamping jaw of the device of fig. 1 a, fig. 3c show- ing the clamping jaw without a central closure,
Figs. 4a and 4b are longitudinal cross-sectional views showing, respectively, the housing of fig. 2 and the clamping jaw of fig. 3a with a piston, ready for assembly,
Fig. 5 is a longitudinal cross-sectional view showing for clarity only how the piston of fig. 3a is fixed to the housing of fig. 2,
Figs. 6a and 6b shows the clamp device in the open and closed positions, respectively,
Figs. 7a and 7b are cross-sectional views of the clamp device in the configuration shown in fig. 6b, through two respective chambers for pressurised flu- id, and
Fig. 7c shows the piston shown in fig. 4b.
Detailed description of the preferred embodiment
In use, the clamp device 10 of the invention is mounted on a movable carriage (not shown) as described above and generally comprises - as shown in figs. 1 a and 1 b - a first elongated clamping jaw 20 with a first clamping face F1 , a housing 50, and a second elongated clamping jaw 30 with a second clamping face F2 oriented towards the first clamping face F1 . The second clamping jaw 30 is mounted to be displaceable relative to the housing 50 into a clamping position with the second clamping face F2 closer to the first clamping face F1 , for holding a flat article of cloth, and vice versa, i.e. back again to the non-clamping position shown in fig. 1 a. At one housing end 52 the entry into the gap between the clamping jaws 20, 30 widens up for easy insertion of a flat article of cloth prior to displacement of the clamping jaw 30 to the clamping position. At the other housing end 51 the housing 50 is connected to the first jaw 20 and to the carriage (not shown). Conduits 15, 16 supply pressurised fluid for bringing about the desired displacement; pressurised fluid, preferably air, is supplied to the one or the other conduit 15, 16 depending on the position of the aforementioned carriage. Typical dimensions of the device 10 may be in the following ranges: height 6- 8 cm, width 4-6 cm, and length measured from the end 52 of the housing 16- 20 cm.
As seen, one, F2, of the two clamping faces F1 , F2 may have a pattern of raised/projecting surface portions 31 whereas the other, F1 , of the clamping faces may have a pattern of recesses 21 arranged opposite to and to be aligned with the raised surface portions 31 in the clamping position whereby, depending on the displacement of the second clamping jaw 30, the recesses 21 may receive the raised surface portions 31 . This arrangement provides particular advantages where a high local clamping pressure on the article is required, such as where the clamping must take into account forces seeking to pull out the article and acting along the length of the clamp and transver- sally thereto; a two-dimensional pattern, such as a zig-zag continuous pattern of raised portions 31 , may be envisaged.
Fig. 2 shows the housing 50 which is defined in part by a peripheral wall W1 delimiting a hollow having two cylindrical pistons 55, 55', spaced apart to receive therebetween yet another piston on assembly of the clamp device 10. While in the following the invention will be discussed with reference to a preferred embodiment having two such pistons 55, 55' mounted to the housing 50, only one such piston 55 operating together with a further piston as described below may be envisaged. The shown embodiment is preferred in providing a highly uniform clamping force against an article held between the two jaws 20, 30.
Figs. 3a and 3b show details of the second clamping jaw 30 before assembly with the housing 50. The second jaw 30 is a body having a bottom defining the clamping face F2, and a peripheral wall W2 defining a number of cylindrical recesses, each in the following being referred to as cylinders and referenced by numerals 35, 35' and 40. Two of the cylinders are sized to matingly receive a respective one of the pistons 55, 55'; where only one piston 55 is in the housing 50 normally only two cylinders 35, 40 will be comprised by the body defining the second jaw 30.
A central cylinder 40, referred to in the appended claims as the "first one of the cylinders", and the cylinders 35, 35', referred to in the appended claims as the "other one(s) of the cylinders", have respective bottom surfaces 37, 37', 41 defining respective first ends of the cylinders proximal or nearest the second clamping face F2. A respective second end of the cylinders distal to the second clamping face F2 is referenced by numerals 42, 36 and 36'. Shown in figs. 3a and 3b is a removable ring-shaped closure 44 defining together with an O-ring S2 the first end 42 of the central cylinder 40 and having an aperture 46 for a first piston part 65 to be discussed further below. The closure 44 may be fixed by screws 39, as shown.
Referring now to figs. 2 and 4a the cylindrical pistons 55, 55' attached to the housing 50 will now be discussed. A top wall W, to be covered itself by a structure including conduits 15, 16 for supply of pressurised fluid, has apertures with thread 58 into which threaded piston parts 57, 57' are screwed for fixing the pistons 55, 55' to the housing 30. Each piston 55, 55' has a central passage 53, 53' for supply of pressurised fluid, as well as a sealing ring S located at piston head 56, 56', adjacent a downward face 54 thereof oriented away from the aforementioned piston parts 57, 57'. A first step in the assembly of the clamp device 10 involves positioning the further piston 60 briefly mentioned above in the first cylinder 40; this further piston 60 is shown in details in fig. 7c and has an elongated piston part 65 with thread 66 (not shown) at one end and a piston head 61 at the other end. An O-ring S1 is secured to the piston head 61 and another O-ring S2 extends around the elongated piston part 65 below the thread 66. A central passage 63 (see fig. 4b) through the elongated piston part 65 opens up at openings 63' above a face 62 of the piston head 61 , this face 62 being oriented, i.e. facing, towards the elongated piston part 65. The piston 60 is inserted into the cylinder 40 with the closure 44 removed, as shown in fig. 3c. The closure 44 is then applied, with the end of the piston part 65 extending through the aperture 46 formed in the closure 44. In this manner a chamber C1 shown in fig. 4b is formed between the upper face 62 of piston head 61 and the upper end of the cylinder 40 which is defined by the lower face 42 of the O-ring S2 which fits tightly around the piston part 65. Pressurized fluid may be supplied to this chamber C1 through the passage 63 and then the openings 63'.
To assemble the jaw 30 with piston 60 shown in fig. 4b and the housing 50 shown in fig. 4a the central passage of piston 60 conveniently has locally a polygonal cross-section portion 64 for engagement with a complementary tool for rotating the piston part 65 relative to the housing 50 and cylinder 40. Thus, when the two structures of fig. 4a and 4b are brought together the piston 60 is fixed in relation to the housing 30 by screwing the threaded part 66 of piston 60 into engagement with the coinciding aperture with thread 58 formed in the housing 30. In this manner the entire jaw 30 is fixed to the housing 50 through the connection between piston 60 with housing 50. The clamp device 10 now appears essentially as shown in fig. 6a.
Operation of the clamp device 10 will now be explained in details. Starting in the open, non-clamping configuration or position shown in fig. 6a pressurised air is supplied through conduit 15 while opening up conduit 16 to the ambient, allowing for a venting of chamber C1 . The air/fluid flowing in conduit 15 flows into central passage 53 of piston 55 to expand a chamber C2 between face 54 of piston head 56 and the bottom surface 37 of cylinder 35. This drives the second jaw 30 to the position shown in fig. 6b, to apply a clamping force on any article between clamping faces F1 , F2. For release of this clamping force pressurised air is now supplied through conduit 16, while opening up conduit
15 to the ambient, allowing for a venting of chamber C2. Air flowing in conduit
16 continues into central passage 63 and through openings 63', to expand chamber C1 by the action of the increased pressure applied against on the one hand the fixed upwardly oriented face 62 of the piston head 61 and on the other hand the opposed downwardly oriented face 42 of the O-ring S2 defining the end of the cylinder 40 of the jaw 30, see fig. 7b. This action raises the jaw 30, displacing it to the original position retracted into the housing 50 while reducing the volume of chamber C2, preferably to zero, compare figs. 6a and 6b. The piston part 65 slides through the O-ring S2 which needs not be fixed to the closure 44.
While in the foregoing the novel clamp device has been discussed for use for an apparatus for spreading cloth the invention is applicable for other uses; the present applicant may, where required, file divisional patent applications on the clamp device as such. Where in the foregoing reference is made to "upper" or "lower" this is merely done in the context of the orientation shown in the drawings and does not imply nor require implementation of the invention with the clamping device arranged with any particular orientation.

Claims

Claims
A clamp device (10) for an apparatus for spreading cloth, said device comprising:
- a first clamping jaw (20) with a first clamping face (F1 ),
- a housing (50), and
- a second clamping jaw (30) with a second clamping face (F2) oriented towards said first clamping face (F1 ),
- - said second clamping jaw (30) being mounted to be displaceable relative to said housing (50) to a clamping position with said second clamping face (F2) closer to said first clamping face (F1 ), and vice versa,
- conduits (15, 16) for supplying pressurised fluid,
characterised in
- said second clamping jaw (30) including at least two cylinders (35, 40),
- said housing (50) including at least two pistons (55, 60),
- - each piston (55, 60) having a piston head (56, 61 ) received by and mating with a respective one of said cylinders (35, 40),
- wherein selected supply of pressurised fluid to a first one (40) of said cylinders (35, 40) acts to displace said second clamping jaw (30) towards said housing (50) whereas selected supply of said pressurised fluid to another one (35) of said cylinders (35, 40) acts to displace said second clamping jaw (30) into said clamping position.
The device (10) of claim 1 wherein to displace said second clamping jaw (30) towards said housing (50) the volume of a chamber (C1 ) selected to receive pressurised fluid and defined in part by said piston head (61 ) received by said first one (40) of said cylinders (35, 40) is increased whereas the volume of a chamber
(C2) defined in part by said piston head (56) received by said another one (35) of said cylinders (35, 40) is reduced.
3. The device (10) of claim 1 or 2,
- said piston (60) having said piston head (61 ) received by said first one (40) of said cylinders (35, 40) having a first piston part (65) fixed to said housing (50),
- said piston head (61 ) received by said first one (40) of said cylinders (35, 40) having a first face (62) oriented towards said first piston part (65),
- said first one (40) of said cylinders having a first end (41 ) proximal to said second clamping face (F2) and a second end (42) distal to said second clamping face (F2),
- - said second end (42) of said first one (40) of said cylinders defining together with said first face (62) a chamber (C1 ) for selective receiving said pressurised fluid for said displacing of said second clamping jaw (30) towards said housing (50).
4. The device (10) according to the previous claim,
- said further piston (55, 55') having said piston head (56) received by said another one (35) of said cylinders (35, 40) having a second piston part (57) fixed to said housing (50),
- said piston head (56) received by said another one (35) of said cylinders (35, 40) having a second face (54) oriented away from said second piston part (57),
- said another one (35) of said cylinders (35, 40) having a first end (37) proximal to said second clamping face (F2) and a second end (36) distal to said second clamping face (F2),
- - said first end (37) of said another one (35) of said cylinders (35, 40) defining together with said second face (54) a chamber (C2) for selectively receiving said pressurised fluid for said displacing of said second clamping jaw (30) into said clamping position.
5. The device (10) according to the previous claim 3 or 4, said first one (40) of said cylinders comprising a removable closure (44) having an aperture (46), said first piston part (65) extending through said aperture (46).
6. The device (10) according to claim 3 or 4 or 5, at least some of said piston parts (57, 65) each having a central passage (53, 63) for supply of said pressurised fluid to a corresponding one of said chambers (C1 , C2).
7. The device (10) according to the previous claim, said piston parts (57, 65) being externally threaded (66) over a cylindrical portion of the length thereof, said threaded portions (66) engaging a respective threaded portion (58) of said housing (50) for fixing said piston parts (57, 65) to said housing (50), at least one of said central passages (53, 63) having locally a polygonal cross-section portion (64) for engagement with a complementary tool for rotating said piston part (57, 65) relative to said housing (50).
8. The device (10) according to any of the previous claims, said housing (50) being elongated with a first housing end (51 ) and a second housing end (52), said device (10) comprising one of said first ones (40) of said cylinders (35, 35', 40) and two of said other ones (35, 35') of said cylinders arranged along the length of said elongated housing (50), said first one (40) of said cylinders being located between said two other ones (35, 35'), said three cylinders (35, 35', 40) receiving a respective piston (55, 55', 65).
9. The device (10) according to any of the previous claims wherein one (F2) of said clamping faces (F1 , F2) has a pattern of raised surface portions (31 ).
10. The device (10) according to the previous claim, wherein the other (F1 ) of said clamping faces (F1 , F2) has a pattern of recesses (21 ), being opposite to and aligned with said raised surface portions (31 ) in said clamping position, and preferably sized and configured to receive said raised surface portions (31 ) in said clamping position.
1 1 .The device (10) according to any of the previous claims, said housing (50) including two separate fluid supply conduits (15, 16) leading from a respective connector, one (16) of said conduits supplying pressurised fluid to said first one (40) of said cylinders and the other one (15) of said conduits supplying pressurized fluid to the other one(s) (35, 35') of said cylinders, wherein venting of said cylinders (35, 35', 40) preferably is by return flow of said fluid through said conduits (15, 16).
12. A laundry article handling apparatus comprising at least one clamp device (10) according to any of the previous claims.
PCT/EP2017/062575 2016-06-08 2017-05-24 A clamp device for an apparatus for spreading cloth and a laundry article handling apparatus comprising at least one such clamp device WO2017211589A1 (en)

Applications Claiming Priority (2)

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DKPA201670410 2016-06-08
DKPA201670410 2016-06-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990693A (en) * 1975-05-16 1976-11-09 Baring Industries, Inc. Sheet folder
GB1490969A (en) * 1974-10-21 1977-11-09 Cherry Tree Mach Co Ltd Sheet feeder for feeding sheets to a laundry calender or ironing machine
DE29715734U1 (en) * 1997-07-14 1997-11-13 Jensen Ag Burgdorf, Burgdorf Bracket
EP0971063A1 (en) * 1998-07-08 2000-01-12 Henry John Weir Apparatus for separating laundry articles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1490969A (en) * 1974-10-21 1977-11-09 Cherry Tree Mach Co Ltd Sheet feeder for feeding sheets to a laundry calender or ironing machine
US3990693A (en) * 1975-05-16 1976-11-09 Baring Industries, Inc. Sheet folder
DE29715734U1 (en) * 1997-07-14 1997-11-13 Jensen Ag Burgdorf, Burgdorf Bracket
EP0971063A1 (en) * 1998-07-08 2000-01-12 Henry John Weir Apparatus for separating laundry articles

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