EP2669413A1 - Shaft rod with reinforcement rod for a healed shaft - Google Patents

Abstract

The shaft rod has latching unit that is located on the base portion (12). A stiffening rod (26) is provided with primary portion and secondary portion. The width of primary portion is different from width of secondary portion. The primary portion of the stiffening rod is attached to the receiving space (25a,25b) by the locking unit of the base portion. An independent claim is included for stiffener device for stiffening of base portion of frame stave.

Description

The invention relates to a shaft rod for a heald of a loom. The demands on heald frames and therefore also on the shank rods used in the healds are increasing. In modern weaving machines, the heald frames are also exposed to great accelerations and therefore great forces due to their high stroke rates. Depending on the width of the fabric very long shaft rods are needed. Each weave has two shaft rods. To each of the shaft rods, a heddle support rail is attached to hold the healds of the heald.

In order to make possible the great accelerations of the heald, it is necessary to keep the weight of the heald as low as possible. On the other hand, a great rigidity of the shaft rod must be ensured in order to avoid bending of the shaft rod during acceleration. Bending of a shaft rod can lead to vibrations, which not only noise is generated, but also increases the burden of attached to the shaft rod strands.

EP 1 528 130 B1 describes a shaft rod for a heald with a designed as a hollow profile body body. The chambers of the body are considered in cross-section approximately rectangular. Viewed in the longitudinal direction of the base body, the chambers are at least partially accessible via an opening, so that a stiffening body inserted into the relevant chamber and at at least two sides can be glued.

The out DE 103 43 159 B4 Known shaft rod of a heald shaft has a base body, which is designed as a hollow profile body. At the upper edge of the base body, a locking means is present. The locking means has two curved legs which define a hollow cylindrical receiving space to receive and act on a cylindrical stiffening body. The latching means serves to hold the stiffening body to the base body until an adhesive located between the stiffening body and the legs of the latching means has hardened.

Proceeding from this, it can be regarded as an object of the present invention to provide a shaft rod with a base body whose rigidity and features can be easily adapted to different applications.

This object is achieved by a heddle with the features of claim 1 and a stiffening device for stiffening the body of a shaft rod with the features of claim 13.

The shaft rod has a base body which extends in the longitudinal direction. The main body is preferably formed by a hollow profile body, in particular aluminum. In the position of use, the longitudinal direction of the main body extends transversely to the warp threads approximately in the direction in which the weft threads are entered. The main body can be made, for example, as an extruded profile. It has a receiving space which is bounded on three sides by a respective web of the base body. On a longitudinal side extending in the longitudinal direction, the main body an opening which preferably runs continuously along the narrow longitudinal side of the main body. In particular, the two webs defining the opening are designed as straight extensions of the respective front or rear wall of the main body. The Au βenfläche the front and rear wall of the body is preferably stepless and edgeless just in the web outer surfaces over.

At the two opposite webs of the receiving space, which adjoin the opening, a locking means is present. The locking means serves to hold and / or positioning a stiffening rod inserted into the receiving space through the opening. The stiffening rod serves to increase the rigidity of the body and is preferably made of a composite material, in particular a carbon fiber composite material. The fibers of this carbon fiber composite extend longitudinally. Preferably, the stiffening rod has rounded longitudinal edges.

The stiffening rod has a first portion of substantially constant first width. The width of the stiffening rod is measured transversely to the longitudinal direction between the two opposing webs adjacent to the opening. The first section of the stiffening rod is arranged in the receiving space. At this first section immediately follows a second section with respect to the first width of different second width. This third section may be followed by a third section having a substantially constant third width. The sections of the reinforcing rod each have a substantially rectangular cross-section, wherein the corners are preferably rounded. The stiffening rod is glued with its first section in the receiving space. About the locking means The stiffening rod is held in the receiving space. This is particularly advantageous in the production. The stiffening rod is positioned and held in the receiving space via the latching means, while the adhesive hardens to produce the integral connection between the stiffening rod and the base body. The handling in the production is therefore very simple.

Due to the cross-sectional profile of the stiffening rod, a high fiber density can be achieved with the use of composite material, in particular carbon fiber composite material. The available for arranging the stiffening rod on the body volume is optimally utilized. By varying the overall height of the stiffening rod transversely to its width and transversely to its longitudinal extent, the shaft rod can be designed with different widthwise and heightwise stiffnesses. As a result, the stiffness of the shaft rod in the direction of movement during operation of the weaving machine and across can be specifically influenced, at the same time the total volume of the stiffening rod is kept as small as possible in order not to increase the weight of the shaft rod unnecessarily.

In a preferred embodiment, the main body has two receiving spaces, each with a stiffening rod. The receiving spaces preferably have the same cross section, so that similar stiffening rods can be inserted into the receiving spaces. The cross-sectional shapes of the receiving spaces can also be chosen differently in order to minimize the mechanical stresses on the shaft rod. At least the first portion of the two stiffening rods can be made identical. The openings of the two receiving spaces have in different and preferably opposite directions.

Between the first and the second portion of the stiffening rod and / or between the second and the third portion of the stiffening rod, a step-shaped transition zone may be formed. This step-shaped transition zone can serve as a contact for the latching means, which is formed for example by a respective latching projection, which protrudes from the respective web to the respective other opposite web. The existing in the transition zone stage may have a step surface which is oriented at right angles or obliquely to a direction of insertion. The insertion direction is the direction in which the stiffening rod can be inserted through the opening in the receiving space. Therefore, a positioning of the stiffening rod in the receiving space can be achieved via the step surface. This stepped transition zone can thus serve as a means to define the relative position of the stiffening rod relative to the base body and in particular the first portion of the stiffening rod in the receiving space. Thereby, for example, a gap between the receiving space limiting webs and the stiffening rod can be adjusted to obtain a desired adhesive layer or glued joint between the stiffening rod and the main body.

In a preferred embodiment, the opening in the receiving space is oriented in the direction in which the heald moves during operation of the loom, usually the vertical direction. Preferably, a receiving space is provided on the longitudinal side of the main body opposite the heddle support rail of the shaft rod. Another receiving space may be arranged adjacent to the heddle support rail. Depending on the desired stiffness of the shaft rod, a stiffening rod can be arranged only in one or both receiving spaces become.

Between the stiffening rod and the receiving space limiting webs, a gap may be present in the at least partially adhesive to cohesive connection of the stiffening rod is present with the body. This gap may have the greatest thickness or thickness in the corner between two abutting webs.

To stiffen a main body of a shaft rod and to reduce the stress on the strands of the shaft stave of the shaft rod, a stiffening device according to the invention can serve with a stiffening rod and a baffle made of elastic material. The stiffening rod can be configured as described above. The reinforcing rod of the stiffening device is intended to be arranged in a receiving space of the base body which is open towards the heddle support rail. At its outer side facing the heddle track, the stiffening rod has an impact body. The baffle body extends like the stiffening rod in the longitudinal direction. Preferably, the length of the impact body is identical to the length of the stiffening rod. The baffle is at least partially made of elastic material and contributes to the stiffening of a shaft rod nothing. It serves as a damping stop for arranged on the heald bar strands in the acceleration of the heald during operation of the loom.

A connecting device is used to connect the impact body directly to the stiffening rod. The connecting device has a connecting means present on the stiffening rod and a connecting counter-means which cooperates with the connecting means and is present on the impact body on. About the connecting device, a releasable positive and / or non-positive connection is preferably made directly between the stiffening rod and the baffle body. As a result, if necessary, a stop damping for the strands can be provided on a shaft rod, without changes to the body are necessary. In which the heddle support rail associated receiving space of the body stiffening rods can be arranged with or without connecting means for attaching a baffle. In addition or as an alternative to the connecting device, it is also possible for a cohesive connection to be present between the reinforcing rod and the impact body.

The connecting means is preferably arranged on the outside of the stiffening rod. The outer side of the stiffening rod is arranged outside the receiving space in one embodiment, so that the connecting means is easily accessible. By way of example, a connection projection may be a connection projection or a connection recess which preferably extends longitudinally along the entire stiffening rod. A connection recess or a connection projection, which preferably extends in the longitudinal direction along the entire impact body, can serve as connection countermeasures correspondingly adapted to the connection means.

In all embodiments, the cross section of the stiffening rod can be constant in the longitudinal direction. The cross section of the impact body may also be constant in the longitudinal direction. The connecting rod and / or the impact body can be easily and inexpensively produced by extrusion and only need to be cut to the desired length.

• Figur 1 einen Schaftstab mit einem Grundkörper und zwei Versteifungsstäben in einer Ansicht mit Blick in Längsrichtung des Schaftstabes,
• Figuren 2 bis 5 jeweils eine schematische Darstellung eines Ausführungsbeispiels eines Aufnahmeraums eines Grundkörpers sowie eines Ausführungsbeispiels eines Versteifungsstabes im Querschnitt quer zur Längsrichtung,
• Figuren 6a bis 6f verschiedene Ausführungsformen einer erfindungsgemäßen Versteifungseinrichtung mit einem Versteifungsstab und einem Prallkörper in schematischer Querschnittsansicht quer zur Längsrichtung,
• Figuren 7 und 8 jeweils ein abgewandeltes Ausführungsbeispiel einer Versteifungseinrichtung, wobei der Versteifungsstab der Versteifungseinrichtung in einem Aufnahmeraum eines Grundkörpers eines Schaftstabes angeordnet ist und
• Figur 9 eine schematische Darstellung eines Webschaftes mit zwei Schaftstäben und daran angeordneten Litzen.

Advantageous embodiments of the invention will become apparent from the dependent claims and the description. The description is limited to essential features of the invention. The drawing is to be used as a supplement. Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. Show it:

• FIG. 1 a shaft rod with a base body and two stiffening rods in a view in the longitudinal direction of the shaft rod,
• FIGS. 2 to 5 in each case a schematic representation of an exemplary embodiment of a receiving space of a base body and of an embodiment of a reinforcing rod in cross-section transverse to the longitudinal direction,
• FIGS. 6a to 6f various embodiments of a stiffening device according to the invention with a stiffening rod and an impact body in a schematic cross-sectional view transversely to the longitudinal direction,
• FIGS. 7 and 8 in each case a modified embodiment of a stiffening device, wherein the stiffening rod of the stiffening device is arranged in a receiving space of a base body of a shaft rod and
• FIG. 9 a schematic representation of a weaving shank with two shaft rods and strands arranged thereon.

In FIG. 9 schematically a weaving shank 10 is illustrated with two extending in the longitudinal direction L shaft rods 11. The two shaft rods 11 are arranged in a height direction H, which corresponds to the direction of movement of the weaving shank 10, at a distance from each other. Each shaft rod 11 has a base body 12 and a heddle support rail 13 arranged on the base body. At the two Litzentragschienen 13 of the heald 10 a plurality of healds 14 are arranged. In the height direction H side supports 15, which connect the two shaft rods 11, so that a frame-shaped heald 10 is formed.

In FIG. 1 an embodiment of a heald frame 11 is shown in side view with a view in the longitudinal direction L. The base body 12 of the heald 11 is configured in the embodiment as aluminum hollow chamber profile. The main body 12 may be formed by an extruded profile. A front wall 16 and a rear wall 17 of the main body 12 are arranged at a distance from each other in parallel planes and in particular have edge and stepless outer surfaces. Between the front wall 16 and the rear wall 17 a plurality and according to the example two hollow chambers 18 are formed, which are closed on four sides. The hollow chambers 18 are not closed by the main body 12 only at their two longitudinal ends in the longitudinal direction L. At these longitudinal ends they can be completed by an associated side support 15.

To form these hollow chambers 18, the front wall 16 and the rear wall 17 are connected to one another by a plurality of parallel transverse webs 19 extending in the longitudinal direction L. In the embodiment, three such transverse webs 19 are present. The transverse webs 19 extend in a plane which is oriented through the longitudinal direction L and a transverse to the longitudinal direction L and transverse to the height direction H. Width direction B is clamped.

The height of the front wall 16 in the height direction H is smaller than that of the rear wall 17. The rear wall 17 projects beyond the front wall 16 on one side and forms a holding leg 20 there for attaching the heddle support rail 13.

Between the front wall 16 and the rear wall 17 at least one receiving space 25 for a stiffening rod 26 of the shaft rod 11 is formed. The receiving space 25 is bounded by one of the transverse webs 19 and two further webs on three sides. In the exemplary embodiment, wall sections of the front wall 16 and the rear wall 17 form two side webs 27 which project away from the transverse web 19 in the vertical direction H and which together with the transverse web 19 delimit the receiving space 25. At the opposite side of the crosspiece 19, the receiving space 25 has an opening 28. Through the opening 28 of the receiving space 25 in the longitudinal direction L is open to one side continuously. As a modification to the illustrated preferred embodiment, the opening 28 could also be oriented in the width direction B.

At the in FIG. 1 illustrated embodiment of the shaft rod 11, a first receiving space 25a and a second receiving space 25b is present. The two receiving spaces 25a, 25b are preferably contoured identically in cross section. The one, first receiving space 25 a is provided on one of the heddle support rail 13 opposite first longitudinal side 29 of the base body 12. The other, second longitudinal side 30 of the base body is formed by the heddle support rail 13 or the holding leg 20. At a distance from the second longitudinal side 30, the second receiving space 25b is arranged adjacent to the heddle support rail 13, wherein the second receiving space 25 b is open through its opening 28 to the heddle support rail 13.

In a modification to the embodiment illustrated here, it is also possible to provide more than two receiving spaces 25.

On the base body 12, a latching means is provided on the two opening 28 limiting webs 27 for holding and / or positioning of the reinforcing rod 26. In the exemplary embodiment described here, these are the two side webs 27. The latching means 35 has on each of the side webs 27 a latching projection 36, which protrudes toward the respectively opposite web 27 from the side web 27. In the in the FIGS. 2 and 3 illustrated embodiment, the receiving space 25 extends starting from the locking projection 36 to the opening 28.

At least one of the two side webs 27 is elastically pivotable for insertion of the stiffening rod 26 through the opening 28 in the receiving space 25. The wall thickness h for achieving the desired pivotability of the side web 27 can be reduced for this purpose in a swivel range. At the in FIG. 2 illustrated embodiment, a recess 37 is inserted into the respective side web 27 in the transition region between the transverse web 19 and the respective side web 27 in the receiving space 25 in order to achieve the desired wall thickness h.

Between the stiffening rod 26 and the webs 19, 27, which limit the receiving space 25, a gap 38 is preferably formed. In this gap 38, an adhesive film or an adhesive layer is disposed to produce a material connection between the base body 12 and the reinforcing rod 26, which preferably completely fills the gap 28. For the preparation of this adhesive bond Adhesive can be introduced into the receiving space and then the stiffening rod 26 are inserted through the opening 28. In this case, the adhesive is distributed in the gap 38. The adhesive fills the gap 38 to about the locking projection 36 from. The side bars 27 extend, for example, beyond the latching projection 36 to the opening 28 and form an adhesive overflow if too much adhesive has been metered. An exit of the adhesive from the receiving space 25 is thereby prevented. In order to provide the desired gap between the transverse web 19, which is arranged opposite the opening 28, and the stiffening rod 26, a spacing projection 39 can project away from the transverse web 19 to the opening 28. The stiffening rod 26 abuts in the inserted state of the distance projection 29, whereby adjacent to the spacer projection 39 of the gap 38 remains. The spacing projection 39 may be formed by a protruding edge running continuously in the longitudinal direction L.

The execution of the receiving space 25 according to FIG. 3 differs from the embodiment according to FIG. 2 in that no recesses 37 are present. Whether a reduction of the wall thickness h in the pivoting range is necessary depends on the parameters described in connection with the equation given above. Preferably, the side web 27 of the second receiving space 25b, which continues on the holding leg 20, designed free of recesses. The opposite other side web 27 must therefore optionally be provided with a recess 37 because of the enlarged pivoting required w.

The stiffening rod has at least one first section 45 with a first width b1 and at least one adjoining second section 46 with a second width b2. The first width b1 and the second width b2 are different sizes. The widths b1, b2 are measured in the width direction B. The first section 45 has an approximately rectangular cross-section. The first width b1 is at least largely constant in the first section 45. Only in the corner region can the first section 45 have a rounding or bevel, as a result of which the width of the first section 45 changes.

In the first embodiment of the stiffening rod 26, the second portion 46 also has a substantially rectangular cross-section with a constant second width b 2, apart from rounded corners, as in FIGS FIGS. 2 and 3 illustrated schematically. The second width b2 is smaller than the first width b1 in this embodiment. In a transition zone 47, a first step 48 with a first contact surface 49 is formed between the first section 45 and the second section 46 in the exemplary embodiment. This first stage 48 with the first contact surface 49 is seen in the width direction B provided on both sides in the transition region 47. The first contact surface 49 is acted upon by the respectively associated latching projection 36. By way of the two latching projections 36 and the spacing projection 39, a positioning of the reinforcing rod 26 and in particular of the first section 45 in the receiving space 25 can thus be achieved.

In FIG. 4 a modified embodiment of the stiffening rod 26 is illustrated in cross section. The stiffening rod 26 has, in this embodiment, following the second section 46, a third section 50 with a substantially rectangular cross-section and a third width b3. The third width b3 is constant except for chamfered or rounded corners in the third portion 50. The second section 46 is significantly smaller in the height direction H in this embodiment It represents as it were a taper of the stiffening rod 26. The second width b2 may be constant or, as in FIG FIG. 4 in the height direction H, when the second portion is configured as a taper, for example, concave inwardly. According to the embodiment FIG. 4 corresponds to the first width b1 of the third width b3. The third width b3 could also be selected to be larger or smaller than the first width and / or the second width. The third portion 50 of the stiffening rod 26 is located outside of the receiving space 25 and may serve as a mounting portion for additional elements, such as damping devices for the healds.

At the in FIG. 4 illustrated embodiment, the locking projections 36 of the locking means 35 are formed by mutually inwardly inclined side webs 27.

According to the embodiment FIG. 4 is in the transition zone 47, a second second stage 51 between the second portion 46 and the third portion 50 is formed. The second stage 51 has a second contact surface 52. The two contact surfaces 49, 52 are oriented in the embodiment obliquely to a plug-in direction Z, in which the stiffening rod 26 is inserted through the opening 28 in the receiving space 25. The insertion direction Z corresponds in the embodiment of the height direction H. The two contact surfaces 49, 52 could also be aligned at right angles to the insertion direction Z.

In the assembled state of the stiffening rod 26 of the locking projection is - as shown schematically in FIG. 4 shown - on both the first bearing surface 49, and on the second bearing surface 52 at. As a result, the stiffening rod 26 defined in the insertion direction Z in its relative position relative to the base body 12. The gap 38, in particular with respect to the transverse web 19, can thus be defined and maintained without additional means and in particular without additional spacing projection 39.

At the in FIG. 5 illustrated embodiment of the stiffening rod 26, this has only the first portion 45 and the second portion 46. In this embodiment, the second width b2 is larger than the first width b1. Both widths b1, b2 are substantially constant, except for rounded corner regions of the cross-sectional profile. The first stage 48 formed in the transition zone 47 has a first contact surface 49 which is aligned, for example, approximately at right angles to the insertion direction Z, and which abuts with a respective web 27, a latching projection 36. This also the relative position of the stiffening rod 26 and in particular the distance relative to the transverse web 19 and thus the gap between the transverse web 19 and the stiffening rod 26 is defined. Too deep insertion of the stiffening rod 26 and thus displacement of the adhesive between the stiffening rod 26 and the cross bar 19 is avoided.

The latching projections 36 are in the in FIG. 5 illustrated embodiment executed by bulges on the mutually facing inner sides of the two side webs 27, which are provided according to the example directly on the longitudinal edge of the side web 27.

As with reference to the embodiment according to FIG. 5 illustrated, disposed outside of the receiving space 25 outer portion 46, 50 have a width b2, b3, which corresponds to the width of the base body 12. Preferably, this outer section 46, 50 connects the outer surfaces of the front wall 16 and the rear wall 17 and extends these outer sides.

Preferably, the stiffening rod 26 is made of a composite material, in particular a carbon fiber composite material. The stiffening rod 26 can form a stiffening device 61 together with an impact body 60 made at least partially of elastic material. Embodiments of the stiffening device 61 are in the FIGS. 6 to 8 illustrated schematically.

The stiffening device 61 is arranged in the position of use on the base body 12 adjacent to the heddle support rail 13. In this case, the stiffening rod 26 is in the storage rack 13 towards the open receiving space, according to the second receiving space 25b. An outer side 62 of the reinforcing rod 26 is located outside the second receiving space 25b. The outer side 62 of the stiffening rod 26 extends in the longitudinal direction L and is associated with the Litzentragschiene 13. As described above, the stiffening rod 26 can have sections 45, 46, 50 of different widths b1, b2, b3 or alternatively also have a consistently constant width, as can be seen from FIGS FIGS. 6a to 6f is illustrated very schematically.

The stiffening device 61 has a connection device 63 for the direct connection of the impact body 60 to the stiffening rod 26. In the exemplary embodiment, the connecting device 63 has a connection means 64 present on the stiffening rod 26 and in particular of the outer surface 62, as well as a complementary or complementary-like connection counteracting means 65 provided on the impact body 60. The connecting means 64 may be formed by a connecting recess 66 or a connecting projection 67. The connection counterpart 65 is accordingly complementary or complementary similar formed by the connecting projection 67 or the connecting recess 66. A precisely complementary configuration of connecting means and connection counter means is not necessary - a complementary similar configuration in which the two means for intermeshing is sufficient. For example, the in FIG. 6e shown connection projection 67 with a connection recess 66 after FIG. 6f be used.

The connection means 64 and the connection counter-means 65 preferably extend in the longitudinal direction L completely along the stiffening rod 26 or the impact body 60. The length of the stiffening rod 26 is preferably identical to the length of the impact body 60.

The connecting recess 66 is preferably executed as it were undercut. It has a longitudinal slot L extending slot 68 and an adjoining, opposite the slot 68 widened channel 69. The slot 68 preferably has a rectangular cross-section. The channel 69 may have any of various cross-sectional shapes as shown in FIG FIGS. 6a to 6f is illustrated. Correspondingly adapted to the connection recess 66, the connection projection 67 has a preferably rectangular contoured web 70 and an end section 71 which is widened in relation to the webs 70. The cross-sectional shape of the end portion 71 is adapted to the cross-sectional shape of the channel 69. In the assembled state, the web 70 protrudes through the slot 68 and the end portion 71 is located in the channel 69.

The cross-sectional shapes of the end portion 71 and the channel 69 may be oval, elliptical, circular, rectangular, polygonal, prismatic, trapezoidal or triangular be. Any desired cross-sectional configurations are possible here. Relative to a longitudinal center plane are in the FIGS. 6a to 6f regular cross-sectional shapes of the connecting projection 67 and the connecting recess 66 shown. Even irregular, non-symmetrical configurations are possible. It is also possible for a plurality of connecting projections 67 and connecting recesses 66 to serve as connection means 64 or connection counter means 65.

The baffle 60 serves as a damping device for the arranged on the Litzentragschiene 13 strands. It has one of the Litzentragschiene 13 associated baffle 72, to which the arranged on the Litzentragschiene 13 strands can strike at an acceleration of the weaving shank and are attenuated damped. At least the part of the impact body 60 having the baffle surface 72 is made of elastic material. The elasticity is selected such that the healds 14 hitting the impact surface 72 are not abruptly decelerated, but are braked by elastic deformation of the impact body 60 when the heald is accelerated during operation of the weaving machine.

In modification to the in FIGS. 6a to 6f illustrated embodiments, the outer side 62 may extend not only perpendicular to the height direction H, but also obliquely thereto, as in FIG. 7 is shown schematically. As a result, the accessibility when replacing the releasably attached to the stiffening rod 26 baffle body 60 is simplified.

In a modification to the previous embodiments of the stiffening device 61, the connecting projection 67 may also be formed by the outside 62 having the free end 73 of the stiffening rod 73, in the height direction H protrudes from the receiving space 25. On this formed by the free end 73 connecting projection 67 of the baffle 60 can be plugged. The connecting recess 66 may be formed, for example, by a U-shaped bracket 74 or arranged thereon, wherein the bracket 74 engages around the free end 73. The bracket 74 is part of the baffle body 60 and, unlike the baffle 72 having part of the baffle body 60 made of non-elastic material. The bracket 74 may extend in the longitudinal direction L along the entire impact body 60. It is also possible for a plurality of brackets 74 to be present in the longitudinal direction L distributed on the impact body 60.

About the connecting means 64 and the connecting means 65 is preferably a releasable, positive and / or non-positive connection between the baffle body 60 and the stiffening rod 26 produced. The baffle body 60 can therefore be easily replaced or attached, for example, after stringing the healds 14 on the heald bar 13 on the associated stiffening rod 26.

The invention relates to a shaft rod 11 and a stiffening device 61 for a base body 12 of a shaft rod 11. The shaft rod 11 is part of a weaving shank 10 of a loom. The main body 12 of the shaft rod 10 may have at least one receiving space 25 extending in the longitudinal direction L, which is completely open through an opening 28 on one side viewed in the longitudinal direction L. Through the opening 28, a first portion 45 of a stiffening rod 26 can be inserted into the receiving space 25. About a locking means 35 on the base body 12 of the inserted stiffening rod 26 is held in the receiving space 25. In addition, the stiffening rod 26 is integrally connected to the base body 12. The first section 45 has a substantially constant first width b1. This is followed by a second section 26, preferably forming a step 48. The second section 46 has a second width b2, which is different from the first section 45. Thereby, the position of the stiffening rod 26 can be specified within the receiving space 25 in cooperation with the locking means 35 and the assembly can be simplified. A further independent aspect of this invention is to connect a baffle body 60 serving as a damping device directly to a reinforcing rod 26 fastened to a base body 12 via a connecting device 63, preferably releasably. The baffle 60 is at least partially made of elastic material and has a baffle 13 associated baffle 72.

LIST OF REFERENCE NUMBERS

10

heald

11

stave

12

body

13

shaft stave

14

heald

15

side support

16

front wall

17

rear wall

18

hollow

19

crosspiece

20

maintenance leg

25

accommodation space

25a

first recording room

25b

second recording room

26

stiffening rod

27

side web

28

opening

29

first longitudinal side of the main body

30

second longitudinal side of the main body

35

latching means

36

catch projection

37

recess

38

gap

39

separating projection

45

first section

46

second part

47

Transition zone

48

first stage

49

first contact surface

50

third section

51

second step

52

second contact surface

60

baffle

61

stiffener

62

outside

63

connecting device

64

connecting means

65

Connection antidote

66

connecting recess

67

connecting projection

68

slot

69

channel

70

web

71

end

72

baffle

73

free end of the stiffening rod

74

hanger

B

width direction

b1

first width

b2

second width

b3

third width

H

height direction

H

Wall thickness

L

longitudinal direction

w

pivoting

Z

insertion

Claims (15)

Shaft rod (10) for a heald of a loom,
with a base body (12) having at least one in a longitudinal direction (L) extending receiving space (25) which is bounded from three sides by a respective web (19, 27) of the base body (12) and to one side having an opening (28),
with a latching means (35) which is arranged on the base body (12),
with a stiffening rod (26) having a first section (45) with a substantially constant first width (b1) and a second section (46) immediately adjacent thereto, with a second width (b2) that is different from the first width (b1). having,
wherein the first portion (45) of the stiffening rod (26) in the receiving space (25) is arranged and wherein the stiffening rod (26) by the latching means (35) of the base body (12) is acted upon. Shaft rod according to claim 1,
characterized in that adjoining the second portion (46) is a third section (50) of substantially constant third width (b3). Shaft rod according to claim 2,
characterized in that the third width (b3) corresponds to the first width (b1) or the second width (b2) or the width of the main body (12). Shaft rod according to one of the preceding claims, characterized in that between two adjoining sections (45, 46) of the stiffening rod (26) a stepped transition zone (48) is formed, against which the latching means (35). Shaft rod according to claim 4,
characterized in that the step-shaped transition zone (47) has a contact surface (49) which defines the position of the stiffening rod (26) in a plug-in direction (Z) in which the stiffening rod (26) passes through the opening (28) of the receiving space (25 ) is inserted. Shaft rod according to one of the preceding claims, characterized in that the latching means (35) each have a latching projection (36) on the two opposite webs (27) delimiting the receiving space (25). Shaft rod according to one of the preceding claims, characterized in that the opening (28) in the direction of movement (H) of the heald shaft (10) is oriented. Shaft rod according to one of the preceding claims, characterized in that a gap (38) is present between the stiffening rod (26) and the webs (27) delimiting the receiving space (25). Shaft rod according to claim 8,
characterized in that the gap (38) in the corner region between two abutting webs (19, 27) has the greatest strength. Shaft rod according to one of the preceding claims, characterized in that there are two receiving spaces (25a, 25b) with identical or different cross-sections. Shaft rod according to one of the preceding claims, characterized in that the base body (12) consists of a first material and the stiffening rod (26) consists of a composite material different from the first material. Shaft rod according to one of the preceding claims, characterized in that the receiving space (25) or at least one of the receiving spaces (25b) to a Litzentragschiene (13) of the shaft rod (11) is open. Stiffening device (61) for stiffening a base body (12) of a shaft rod (11),
with a stiffening rod (26) extending in a longitudinal direction (L),
wherein the stiffening rod (26) has an outer side (62) facing a heddle support rail (13),
with a baffle body (60) extending in the longitudinal direction (L), which at least partially consists of elastic material and which serves as a damping stop for healds (14) arranged on the heddle support rail (13),
with a connecting device (63), a connection means (64) provided on the stiffening rod (26) and a connecting element provided on the impact body (60) (64) has cooperative connection counter means (65). Stiffening device according to claim 13,
characterized in that the connecting means (64) and the connection counter means (65) produce a releasable positive and / or non-positive connection. Shaft rod according to one of claims 1 to 12 with a stiffening device according to claim 13 or 14, characterized in that the outer side (62) of the stiffening rod (26) outside the receiving space (25b) is arranged.

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