CN1759146A - Supporting structure for a shedding system in a mechanical weaving loom - Google Patents

Abstract

The invention relates to a supporting structure (1) for a shedding system in a loom. The supporting structure is provided with a housing consisting of a first partial housing (10) that can be applied to the machine frame of the loom, in the region of the outer side of a lateral part (12) thereof, and a second partial housing (24) that extends perpendicularly to the lateral parts (12, 13) of the machine frame (11) of the loom over the width (A).

Description

The supporting structure that is used for a loom open loop system

The present invention relates to a kind of supporting structure that is used for a loom open loop system, this loom has a frame, and this frame has two side members, settles open loop system between side members, and supporting structure comprises a system that is made up of connecting rod and lever for this reason.

Supporting structure by the open loop system that is used for a loom of EP 742 298 A1 or the known a kind of above-mentioned form of DE 696 07 675 T2.Known supporting structure has a U-shaped profile, and it has lateral projection, and the system that is made up of connecting rod and lever is set therein.Described supporting structure is simultaneously as oil vessel.Known supporting structure is bulky and is difficult to realize.It can not be particularly well suited to make the different structure units that is bearing in the support unit centrally to be provided with mutually or maintenance centering.Therefore known supporting structure is being disadvantageous especially for the use in the loom that moves with higher braiding speed.Known in addition supporting structure is confined to a definite drive system and also only is applicable to a loom with given width.

The objective of the invention is, a kind of supporting structure of above-mentioned form is provided, there is not above-mentioned defective in it and is applicable to high braiding speed operation.

This purpose is achieved thus, have a housing that is spliced into by two housing parts at least in order to hold the system that is made up of connecting rod and lever, one of them first housing parts is arranged on the outer side place of a side members and one second housing parts is arranged on and locates between two side members and perpendicular to side members.

Have advantage according to structure of the present invention, the supporting structure that is made of at least two housing parts is enough to bear the reactive force of alternation, therefore temperature, distortion, vibration or the resonance of alternation also can weave with height braiding speed.Described supporting structure can select or be applicable to this width in simple mode according to the loom width.

In improvement project of the present invention, described first housing parts is provided with the side members that a fixed mechanism is used to be placed in loom, and described second housing parts is fixed on first housing parts.Preferably extend to the side members of loom at this second housing parts, this loom and side members are opposed, fix first housing parts on side members.Obtain an inflexible supporting structure thus, it allows to weave with height braiding speed.

Stipulate that in improvement project of the present invention described fixed mechanism comprises elastomeric element so that first housing parts is placed on the side members of loom.Can between frame and supporting structure, realize relative movement thus, therefore make vibration and vibrations or similar load be delivered to frame from supporting structure, also be delivered to supporting structure from frame with lower intensity ground.If described supporting structure be one and be not the time by the splicing of a plurality of housing parts, this structure of described fixed mechanism also is favourable.

In another improvement project of the present invention, described housing parts and the system that is made up of connecting rod and lever that is placed in wherein constitute a structural unit, and it can be installed in a loom the inside or split out from loom.Can prepare different structural units in advance, they are just different aspect the housing parts between the side members that is arranged on a loom, and the size of this housing parts is corresponding to different loom width.

In another improvement project of the present invention, stipulate that described housing parts is provided with opposed facing reference plane.By these reference planes housing parts during interfixing, it can accurately be located mutually.When being positioned at reactive force and temperature variation, this also can keep.Between two reference planes, preferably has a sealing member.Can avoid thus oil, especially lubricating oil enters between the reference plane.

In an advantageous embodiments, described second housing parts comprises a U-shaped profile, and it constitutes bottom and two sidewalls of housing parts.A bottom and two integral parts that sidewall is a profile of described in one embodiment of the invention first housing parts.This housing parts can be used as oily storage vessel or as the oily passage that for example leads to second housing parts that is made of a U-shaped profile, its can be oily storage vessel simultaneously.

In one embodiment of the invention, a control lever supports swingably around an axle in first housing parts, its end is connected with an activation lever by a coupling contact system, and the other end is connected with another lever at least by transmission bar and an open loop system and by a connected system, and this lever supporting also passes through a transmission bar and is connected with open loop system equally inside second housing parts.

Preferred regulation, the reference plane of described first housing parts are parallel to the axle of control lever and the reference plane of second housing parts is parallel to the axle of another lever.Because this structure of reference plane can make the axle of lever bar accurately opposed in parallel to each other with the axle of another lever, therefore makes control lever and the mutual centering of second lever.This being aligned in when producing the reactive force variation and when temperature variation also keeps automatically.

Stipulate that in a preferred embodiment the axle of described control lever is bearing in the place, end of first housing parts, it is in the face of second housing parts.Can make the lever bar near open loop system, especially a heald frame setting thus.Open loop system is connected easily with the control lever.This structure also allows an oiling system, is placed in the bearing place that controls lever as lubricant pipe or lubricating oil nozzle.Can lubricate the lever rod bearing that bears big reactive force usually thus well.Can cool off the lever rod bearing that is provided with by this way in addition in an advantageous manner.Preferably make lubricating oil be used for cooling bearing simultaneously at this.

In another improvement project of the present invention, described supporting structure has one the 3rd housing parts, and it is being placed on first housing parts on the side that deviates from second housing parts.Described in this case activation lever is bearing in the 3rd housing parts the inside.In improvement project, stipulate, described first housing parts and the 3rd housing parts have opposed facing reference plane, and wherein the reference plane of first housing parts axle and the reference plane of the 3rd housing parts that preferably are parallel to the control lever is parallel to the axle that is arranged on activation lever wherein.By these reference planes first housing parts and the 3rd housing parts are accurately located mutually respectively.When reactive force variation and temperature variation, also keep this location.Preferably between reference plane, have a sealing member, be used to avoid oil, especially lubricating oil enters between the reference plane.The axle that makes control lever and activation lever by reference plane is centering in parallel to each other accurately, makes control lever and activation lever realization centering thus.

According to a preferred embodiment, described control lever is connected with activation lever by a coupling contact system, one of them coupling link rod can be rotated to support on the height of one first pin joint controlling lever, this pin joint is positioned at first housing parts the inside from above, and a coupling link rod is connected with activation lever by a regulon.The control lever is connected with another lever by a connected system, and one of them rod hinge connection is on one second pin joint of control lever, and wherein this pin joint preferably is positioned at first housing parts the inside from below.

Stipulate to have at least one midfeather in improvement project of the present invention between housing parts, it protrudes upward from the bottom of each housing parts.The oil, the especially lubricating oil that exist in the interconnective housing parts of connecting rod are separated from each other.Can for example only in first housing parts, there be lubricating oil thus and in second housing parts, do not have lubricating oil.Preferably make the sealing between the described midfeather formation housing parts.Preferably make housing parts be respectively equipped with a midfeather.Housing parts is separated from each other and removal mutually, and oil is flowed out from housing parts.

Stipulate that in another improvement project of the present invention the pressure oil pipeline directs into one or more axles that are arranged in the housing parts, these axles are provided with outlet orifice at the bearing place, and these are as the internal pipeline of lubricating oil to bearing.The lubricating oil that is transported to bearing can splash into the housing parts the inside.Regulation advantageously also is transported to pin joint from the pressure oil passage of the extension of axle by passing connecting rod and lever that be provided with the pressure oil outlet orifice with oil, and they interconnect connecting rod and lever.

In another improvement project of the present invention, stipulate, on second housing parts between the side members that is arranged on a loom, settle the bearing of the guide of the open loop system that is used to move up and down.Make open loop system constitute a construction package thus, it is independent of the frame of loom to a great extent.

Other features and advantages of the present invention by following to the embodiment shown in the accompanying drawings description and affiliated claim in provide.

Fig. 1 illustrates a vertical cross-section diagram according to supporting structure of the present invention,

Fig. 2 illustrates the vertical view to the biopsy cavity marker devices of the supporting structure of Fig. 1,

Fig. 2 a illustrates the enlarged view of a details among Fig. 2,

Fig. 3 illustrates side-view according to each parts of the supporting structure of Fig. 1 with also unassembled state,

Fig. 4 illustrates stereographic map according to the supporting structure of Fig. 1 with littler ratio,

Fig. 5 illustrates the supporting structure at assembly process according to Fig. 1,

Fig. 6 to be illustrating the supporting structure of a variation with the similar vertical cross-section of Fig. 1,

Fig. 7 illustrates the vertical cross-section diagram of another embodiment,

Fig. 8 illustrates the supporting structure at assembly process according to Fig. 7,

Fig. 9 illustrates another embodiment according to supporting structure of the present invention,

Figure 10 illustrates the sectional view corresponding to Fig. 1 embodiment, and have guide and a sprinkling that is used for axle and pin joint of being used for open loop system and lubricate,

Figure 11 illustrates the sectional view with the similar embodiment of Fig. 1, has one and is used for the pressure oil supply of pin joint and axle and has the guide that is used for open loop system.

Have one first housing parts 10 according to supporting structure 1 of the present invention shown in Fig. 1 to 5, it is placed on the side members 12 of a loom frame 11.This supporting structure has one second housing parts 24 in addition, and it is perpendicular to the side members 12,13 of loom frame 11 and extending on the width A at loom between these side members 12,13.Described second housing parts 24 can be bearing in side members 13 places in vertical direction, and this housing parts is connected with housing parts 10 at side members 12 places.Described first housing parts 10 has a reference plane 36.Described second housing parts 24 has a reference plane 37.Two said reference faces 36 and 37 mutually in the face of and when two housing parts 10,24 connect, lean mutually.Have a sealing member 38 between two reference planes 36,37, it for example is made up of thin band, and it has the profile of reference plane 36,37.Described second housing parts 24 has a U-shaped profile, and it is provided with a recess or groove at its place, bottom, can import oil therein.Described first housing parts 10 can be used as a foundry goods processing, and it has two sidewalls 29,30 and a bottom 31.Described sidewall and bottom constitute a U-shaped profile, and it limits by the plate that constitutes mounting flange on two end faces.

In first housing parts 10, have an axle 3 in the embodiment shown, support a control lever 4 thereon.This control lever 4 is connected with an activation lever 6 with a regulon 21 by a coupling link rod 20.Described control lever 4 has a shape of T shape basically.Described axle 3 is positioned on the height of medial side leg.The side leg that protrudes upward is connected with coupling link rod 20 by a hinge 5.The side leg that stretches out downwards is connected with a connecting rod 22 by a hinge 7, and it is hinged on another bell-crank lever 9 by a hinge, and this lever is rotatable around an axle 8.The horizontal side leg of described control lever 4 and another lever 9 is connected with transmission bar 16 by hinge 15, and this transmission bar is hinged on the coupling connection parts 18 by hinge 17, and these couplings connection parts are guided in the vertically-guided spare 26 of housing parts 24.The coupling link rod 19 that on coupling connection parts 18, connects a heald frame 14.Between the coupling link rod 19 of coupling connection parts 18 and the heald frame 14 of an open loop system 2 for example be connected structurally can with by EP 520 540 A1 in knownly constitute like that.

Described activation lever 6 supports and with a driving mechanism 23, for example an eccentric driver or a cam driver or a handle linkage are connected swingably around an axle 27.

Described hinge 5,7,15 and 17 bearings of being made up of axle journal and bearing, for example ball bearing or a roller bearing constitute.

The reference plane 36 of described housing parts 10 is parallel to axle 3, at axle upper support control lever 4.The reference plane 37 of described housing parts 24 is parallel to axle 8, at another lever 9 of this upper support.When described reference plane 36,37 when assembling mutually on time, then described axle 3 and 8 is parallel to each other.The axle 3 of described control lever is arranged on end face 25 places of first housing parts 10 in the face of second housing parts 24.On second housing parts 24, vertically-guided spare 26 is set in the present embodiment, their guiding coupling connection parts 18.

Have one the 3rd housing parts 28 according to supporting structure 1 described in the embodiment of Fig. 1 to 5, it is fixed on the housing parts 10.Be bearing on the axle 27 in activation lever 6 described in the 3rd housing parts 28.This outer driver 23 is positioned at housing parts 28 the insides.First housing parts 10 is provided with a reference plane 44, and it is in the face of a reference plane 45 of the 3rd housing parts 28.A sealing member 46 is set between two reference planes 44,45, and it is made up of a thin band, and it has the profile of reference plane 44,45.The axle 3 that described reference plane 44 is parallel to control lever 4 extends.The axle 27 that described reference plane 45 is parallel to activation lever 4 extends.When described housing parts 10 and 28 interconnects, when described reference plane 44 and 45 was leaned mutually, then described axle 3 and axle 27 were parallel to each other.

As what can be seen by Fig. 2 and 4, described the 3rd housing parts 28 is fixed on first housing parts 10 by bolt 32.Described first housing parts 10 is fixed on the side members 12 of loom frame 11 by a fixed mechanism that for example comprises bolt 33.Described second housing parts 24 is fixed on first housing parts 10 by bolt 34.

As what can be seen by Fig. 2, described fixed mechanism comprises that for housing parts 10 elasticity connects 69 and is used for fixing on the side members 12 of loom frame 11.This elasticity connect 69 comprise can precession side members 12 the insides bolt 33.An elastomeric element 71 is being set between bolt 33 terminations and the housing parts 10 and an elastomeric element 72 is being set between housing parts 10 and side members 12.Described elastomeric element 71,72 for example is made of rubber ring or disc spring or helical spring.Connect 69 during housing parts is fixed on the frame 11 reliably by such elasticity, described housing parts 10 is relatively moved on small scope with respect to frame 11.This motion at first bolt 33 vertically on realize.The reactive force and the vibration of frame are delivered on housing parts 10 and the entire structure unit with more small degree, and this structural unit is made up of housing parts 10 and housing parts 28 and 24.Correspondingly the reactive force of this structural unit and vibration are delivered to frame 11 from housing parts 10 with small degree more.Connect 69 described housing parts 10 by this elasticity and be connected with side members 12 at least four positions, it also is favourable in this supporting structure that this elasticity is connected, and this supporting structure is not made up of housing parts, and is the housing of an one.

Because be placed in independently housing parts 28 the insides according to driving mechanism 23 described in the embodiment of Fig. 1 to 5 and activation lever 6, therefore can easily this housing parts 28 be replaced to a similar housing parts, but it comprises another drive form.For example housing parts 28 can be settled an eccentric driver or cam driver or handle linkage or any other drive form arbitrarily.

Described in the embodiment shown coupling link rod 20 is hinged on the side leg of control lever 4 top, vertical orientated substantially by a hinge 5.Settle connecting rod 22 by a hinge 7 downwards on the side leg of the control lever 4 that points to, it is connected with another lever 9.

When having one between first housing parts 10 and second housing parts 24 during from midfeather that the bottom protrudes upward, it for example can be a sealing member 38, and two housing parts 10,24 are separated from each other, can be from a housing parts effluent oil.Correspondingly can have a midfeather between housing parts 10 and the 3rd housing parts 28, it can be made of sealing member 46 equally.

Described reference plane 36,37 and reference plane 44,45 be parallel to each other and perpendicular to supporting structure 1 vertically.The axle 3 of described control lever 4 is made of handle bar 39, and it is fixed on end face 25 places of housing parts 10 reliably by a clamping system 40.A unshowned bearing is set on this handle bar 39, for example ball bearing or roller bearing, it holds control lever 4.Bearing has an oiling system 41 (Fig. 1) hereto, and it is made up of a lubricant pipe, especially oil pipe 42 and nozzle 43.

Whole supporting structure 1 can be used as preassembled structural unit and is fixed on the side members 12 of loom frame 11.But also can carry out like this, at first only housing parts 10 and housing parts 28 are assembled into together, be placed in as a whole on the side members 12 then.Before being fixed on housing parts 10 on the side members 12, housing parts 24 can be placed on the housing parts 10.But also can after being fixed on housing parts 10 on the side members 12, just housing parts 24 be placed on the housing parts 10.As what can see in Fig. 1, the housing parts 10,24 and 28 that is assembled into together constitutes a structural unit, and it is simultaneously as oil 47, the especially container of lubricating oil.Can select the liquid level of oil 47.

In the embodiment according to Fig. 6, first housing parts 10 and second housing parts 24 are respectively equipped with midfeather 48,49, and housing can be separated thereon.Described midfeather 48,49 remains on respectively on its housing parts 10,24 according to separating.Be provided with two midfeathers 50,51 equally between housing parts 10 and the 3rd housing parts 28, wherein midfeather 50 is retained in housing parts 10 next doors and midfeather 51 is retained in housing parts 28 next doors.Described midfeather 50,51 can be higher relatively, and that midfeather 48,49 can only be selected is relatively low, so that do not hinder the motion of lever bar 4.Because this structure can be selected the liquid level of a lubricating oil 47 in housing parts 28, it is higher relatively, and selects a liquid level in housing parts 24, and it is relatively low.Can stipulate that in housing parts 10 described liquid level further reduces and is very small actually.

Two housing parts 10,28 are provided with a common cover plate 35, and as what can be seen by Fig. 5, the side members 12 that it passes loom frame 11 extends to housing parts 24 and dustproof the sealing.After taking off this common cover plate 35, can touch setting device 21 easily.

As what especially can see by Fig. 2, the drive system of equal amts is set before and after the quantity in whole supporting structure 1 inside corresponding to open loop system 2, for example knitting rod 14 compactly, and it is made up of driving mechanism 23, activation lever 6, control lever 4 and another lever 9 and affiliated coupling connection and interconnecting piece.All drive systems have one and are used for the common axis 3 of all control levers 4, a common axis 8 and a common axis 27 that is used for all activation lever 6 that is used for all levers 9.

In the embodiment according to Fig. 7 and 8, described activation lever 6 is bearing in housing parts 52 the insides, and it also holds the axle 3 of control lever 4.Described housing parts 52 is the fixing for example to realize by means of the mode that embodiment 1 to 5 describes in the same manner with housing parts 10 on housing parts 52 of the fixing and housing parts 24 on the side members 12.Described housing parts 52 can be provided with a midfeather corresponding to housing parts 10.Not only have another lever 9 in this embodiment, and at least also have one the 3rd lever 53, it can be around one corresponding to axle 8 and equally with axle 8 be arranged on axle 54 swings in the housing parts 24 and it is hinged on the connecting rod 22 equally.For the loom with broad knitting width and/or for the loom of heavy material suitable be heald frame 14 to be risen and the quantity of the lever 9,53 that descends is increased to a plurality of levers.

Have a coupling link rod in according to the embodiment of Fig. 9 between activation lever 6 and control lever 4, it is made of two branch connecting rods that firmly connect mutually 57,58.Connecting rod 57,58 pointed to downwards obliquely and was hinged on by hinge 5 near hinge 7 places on the control lever 4 these minutes.By using two branch connecting rods 57,58 that branch connecting rod 57 is broken away from dividing connecting rod 58.The position of described regulon 21 needn't change.Also can replace to a connecting rod that is divided into two branch connecting rods 59,60 according to connecting rod 22 described in the embodiment of Fig. 9.

Be arranged on control lever 4 and another lever 9 and 53 and open loop systems 2, for example the parts between heald frame 14 needn't have certainly in the shape shown in Fig. 1 to 8.As shown in Figure 9, the guiding in vertically-guided spare 26 respectively of coupling connection parts 66, these coupling connection parts and suspension hook 67 a couplings connection, this suspension hook is positioned on the upper end of heald frame 14.Described coupling connection parts 66 are provided with a reinforcement 68, and it is embedded into suspension hook 67 the insides.

Have spreading nozzle 55 for all positions of bearings in according to the embodiment of Figure 10, they pass through the oil supply pipe fuel feeding corresponding to nozzle 43.Also stipulate on housing parts 24, to have the guide 73,74 that is used for heald frame 14 for embodiment according to Figure 10.Described guide 73 can move apart and return in this embodiment corresponding to the direction of arrow, is used for changing heald frame 14.Described guide 73,74 is placed on the end face of housing parts 24 by bearing 75,76.These bearings 75,76 removably are connected housing parts 24 the insides, so they just are placed on the loom after housing parts 24 is placed on the loom.

In embodiment, stipulate, provide pressure oil described turning axle 3,8,27 and the hinge between lever and connecting rod according to Figure 11.For this reason the pressure oil-source 80 that will conform to the principle of simplicity to show with the pressure oil pipeline 77,78,79 that long and short dash line is represented, for example oil pump directs into the joint of axle 3,8 and 27.These axles have outlet orifice at the bearing place, and thus to the bearing fuel feeding, oil splashes into the housing parts the inside downwards then.Have oily passage 81,82 at lever and connecting rod inside, they are from axle 3,8, and 27 outlet orifice branch comes out and directs into each hinge of pin joint.

The size of supporting structure 1 that form or that be made up of housing parts 52 and housing parts 24 is certainly selected according to the size of loom by housing parts 10, housing parts 24 and housing parts 28.This point is particularly useful for the length of housing parts 24.Described supporting structure 1 constitutes like this, make the unshowned preparing mechanism that is used to add weft yarn can be set above it, therefore described housing parts 10 or 52 can be arranged on the right side or the left side of a loom selectively, that is, described housing parts 10 or housing parts 52 can be placed on the side members 13 of loom frame 11 equally.

Can be installed in multi-form loom the inside according to supporting structure of the present invention, for example air nozzle loom, rapier loom, arrow shaft protection loom, water jet loom, gripper shuttle loom and other loom.Also can be placed on the existing loom according to supporting structure of the present invention afterwards.Can be installed in a loom the inside easily according to supporting structure of the present invention, also can from a loom, split out again easily.

The present invention is not limited to the supporting structure embodiment that describes with example.But can change supporting structure within the scope of the claims.Especially can realize the combination of each embodiment.

Claims (18)

1. supporting structure (1) that is used for the open loop system of a loom, this loom has a frame (11), this frame has two side members (12,13), can settle open loop system (2) between side members, supporting structure (1) comprises a system that is made up of connecting rod and lever for this reason, it is characterized in that, having one at least by two housing parts (10 in order to hold the system that forms by connecting rod and lever, 28,24; 52,54) housing that is spliced into, one of them first housing parts (10,52) are arranged on the outer side place of a side members (12) and one second housing parts (24) is arranged on and locates between two side members and perpendicular to side members.

2. supporting structure as claimed in claim 1, it is characterized in that described first housing parts (10,52) is provided with a fixed mechanism (33,69) be used to be placed in the side members (12) of loom, and described second housing parts (24) is fixed on first housing parts.

3. supporting structure as claimed in claim 2 is characterized in that, described fixed mechanism (33,69) comprises elastomeric element (71,72) so that first housing parts (10,52) is placed on the side members (12) of loom.

4. as each described supporting structure in the claim 1 to 3, it is characterized in that described housing parts (10,24,28; 52,54) and the system that forms by connecting rod and lever that is placed in wherein constitute a structural unit, it can be installed in loom the inside or split out from loom.

5. as each described supporting structure in the claim 1 to 4, it is characterized in that the length of described second housing parts (24) approaches the distance (A) between the loom side members (12,13).

6. as each described supporting structure in the claim 1 to 5, it is characterized in that described first housing parts (10,52) and second housing parts (24) are provided with opposed facing reference plane (36,37).

7. as each described supporting structure in the claim 1 to 6, it is characterized in that described second housing parts (24) comprises a U-shaped profile, it constitutes bottom and two sidewalls of housing parts.

8. as each described supporting structure in the claim 1 to 7, it is characterized in that a bottom (31) and two sidewalls (29,30) of described first housing parts (10) are the integral parts of a profile.

9. as each described supporting structure in the claim 1 to 8, it is characterized in that, at first housing parts (10,52) a control lever (4) supports swingably around an axle (3) in, its end is by a coupling contact system (20,21) be connected with an activation lever (6), and the other end also passes through a connected system (22 by a transmission bar (16) and an open loop system (2); 59,60) with another lever (9,53) connection at least, this lever supporting is connected with open loop system (2) equally in second housing parts (24) the inside and by a transmission bar (16).

10. supporting structure as claimed in claim 9 is characterized in that, the reference plane (36) of described first housing parts (10,52) be parallel to control lever (4) axle (3) and the reference plane (37) of second housing parts (24) is parallel to the axle (8) of another lever (9).

11., it is characterized in that the axle (3) of described control lever (4) is arranged on first housing parts (10,52) and locates in the face of the end face (25) of second housing parts (24) as each described supporting structure in the claim 1 to 10.

12., it is characterized in that having one the 3rd housing parts (28) as each described supporting structure in the claim 1 to 11, it is being placed on the side that deviates from second housing parts (24) on first housing parts (10).

13. supporting structure as claimed in claim 12, it is characterized in that, described first housing parts (10) and the 3rd housing parts (28) have opposed facing reference plane (44,45), wherein the reference plane of first housing parts (44) reference plane (45) that preferably is parallel to axle (3) extension of control lever (4) and the 3rd housing parts is parallel to the axle (27) of the activation lever (6) that is arranged on wherein.

14. as each described supporting structure in the claim 1 to 13, it is characterized in that, at housing parts (10,24,28; 52,54) has a midfeather (48,49 between; 50,51), it protrudes upward from the bottom of each housing parts.

15. as each described supporting structure in the claim 1 to 14, it is characterized in that, at the housing (10,24,28 of multi-piece type; 52,54) be adjacent to be provided with a plurality of systems that form by connecting rod and lever in, be used to drive a plurality of open loop systems that are arranged in parallel (2).

16., it is characterized in that the pressure oil pipeline directs into one or more housing parts (10,24,28 that are arranged on as each described supporting structure in the claim 1 to 15; 52,54) axle in (3,8,27), these axles are provided with outlet orifice at the bearing place.

17. supporting structure as claimed in claim 16 is characterized in that, the pressure oil passage directs into and makes connecting rod and the interconnective hinge of lever from the axle (3,8,27) of connecting rod and lever inside.

18. as each described supporting structure in the claim 1 to 17, it is characterized in that, the guide (73 of the open loop system (2) that is used to move up and down is housed on second housing parts (24) between the side members that is arranged on a loom (12,13), 74) bearing (75,76).

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