JP2012207357A - Heald having eye improved in warp holding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heald improved in warp holding in an eye of the heald.SOLUTION: A heald includes an eye 14 having yarn support faces 26 each forming a path drawing a curve from an inlet side 16 to an outlet side 17 of the eye 14. A curvature of a first curve area 27 joined to a yarn inlet side exceeds a curvature of a second curve area 28 joined to a yarn outlet side. The eye is partitioned in a cross direction Q crossing a warp direction K and crossing a length direction L by two guide webs 33 and 34, respectively. End regions 38 of the guide webs can pass through both sides of the yarn support faces 26 along a whole length of the yarn support faces from a warp inlet side to a yarn outlet side. In a center region, the two guide webs in the warp direction K are arranged so as to form an insertion aperture having an insertion gap y. A shape of a guide region and a shape of the yarn support face can be configured independently of each other, but they may be combined with each other and mounted on one heald.

Description

  The present invention relates to a heald for a loom heald frame.

  A large number of healds are mounted on this type of heald frame. Each heald has an eye (threadhead) through which one warp thread passes when the heald is in motion. When the loom operates, the heald frame moves up and down in order to form a kerf through which the weft thread passes. In modern looms, the heald frame moves up and down frequently. Therefore, the demand for heald is high. Even when the warp yarns and the healds through which they pass are subjected to significant acceleration or deceleration, damage to the warp yarns and excessive wear of the healds must be avoided. The eye design related to whether the above problems can be avoided is therefore very important.

  U.S. Pat. No. 6,089,077 discloses a heald for a ribbon warp. This heald eye is mainly formed as an opening in the shape of a slot made in a flat, ribbon-like heald body. In some embodiments, the eye has a curved surface (curvature) in the surface area where the yarn is placed. This curved surface can be created by attaching independent cylindrical or partly cylindrical elements. That is, its curved end is attached to the upper or lower side of the eye. In a further embodiment, the tongue is bent out of the plane of the flat heald body adjacent to the upper and lower sides of the eye. As a result, a curved curved surface is formed at the end of the eye that can act as a thread support surface for the ribbon-like heald.

  A heald with a heald body made from wire is known from US Pat. A maillon is inserted between the two parallel wires of the heald body to form the eye. The fastener has a curved surface with respect to the eye.

  U.S. Pat. No. 6,057,089 also discloses a heald for a ribbon-shaped warp having a heald body that is rectangular in cross section. The eye is in the shape of a parallelogram and the two edges forming the yarn support surface are bent with respect to horizontal and vertical. The eye is rounded on both the warp yarn entry side and the exit side, and the yarn support surface between them is flat.

  In one embodiment, the yarn-protecting resinous heald known from US Pat. No. 6,096,049 comprises an eye whose support surface may have a flat or grooved shape. In addition, the eye can have a funnel-shaped extension on the warp entry side or on the warp exit side. This funnel-shaped extension is shown schematically as a bend in the figure. The orientation of the funnel-shaped extension is not described in more detail. Here, in this embodiment, the warp yarn is provided only with appropriate side guides, and it is not preferable that the yarn support surface has a groove shape when in contact with the yarn support surface. When the warp yarn is lifted from the yarn support surface, the side guide is only provided with two narrow guide webs extending longitudinally along the heald body and offset from each other in the warp yarn direction. The heald can be twisted about its longitudinal axis.

European Patent Application Publication No. 1795635 US Pat. No. 6,283,163 US Pat. No. 6,145,549 European Patent Application Publication No. 1739215

  The object of the present invention is to improve the warp retention in the eye of the heald.

  In the first embodiment of the heald according to the present invention, each of the two thread support surfaces arranged facing each other in the longitudinal direction of the heald body has a first curved region and a second curved region. As a result, their curvatures are different. The curvatures of the first and second curved areas are each preferably constant, while the curved degrees of the two curved areas are preferably different from each other. In particular, the curvature of the first curved region has a larger value than the curvature of the second curved region. The first curved region can be assigned to the warp yarn inlet side, and the second curved region can be assigned to the warp yarn outlet side. When the shed is open, the one or more heald frames are in the upper or lower lip position. Therefore, the warp yarn changes its direction upward or downward from the backrest or parts rod of the loom and advances to the closed position of the shed through the warp yarn surface, or at the warp yarn entrance angle to the eye and the warp yarn exit angle from the eye in a horizontal plane. Proceed to Here, the warp yarn exit angle is usually larger than the warp yarn entrance angle. In order to optimize the situation in which the warp yarn in the eye fits along the yarn support surface, the warp yarn support surface includes two curved regions with different curvatures. In this way, the largest possible contact area can be formed between the warp thread and the thread support surface in order to distribute the load between the warp thread and the thread support surface over the largest possible contact area. . In this way, even if the warp yarn is in the maximum tension state under any circumstances, a very uniform load on the warp yarn can be applied. According to the configuration of the present invention, the number of yarn breaks can be reduced. Since the warp yarn extends along the entire contact surface and is always curved with respect to the yarn support surface, excessive stress can be prevented from being applied to the warp yarn locally, for example, on the edge of the eye. . For example, in the case of a relatively thick resin heald, the warp yarn support surface may have a plurality of curved regions as necessary.

  Apart from this, another aspect according to the invention for holding the warp includes improving the side guide of the warp in the eye area. The warp yarn passes through the eye from the warp yarn inlet side to the warp yarn outlet side in a direction crossing the length direction of the hull body and crossing the warp yarn direction, and the eye is a side surface of each of the directions. However, it is restrained by the guide web. Since the transverse distance between these guide webs is often adjusted according to the diameter of the warp yarn, the distance is very short and sufficient to accommodate the insertion needle for inserting the warp yarn. There is not enough room. Therefore, in the configuration according to the present invention, each guide web has a central cutout portion, and the leading edge of the guide web allocated to the warp yarn inlet side in the warp direction is the warp yarn input side of the eye. And away from the trailing edge of the other guide assigned to the warp exit side, so that the trailing edge is also away from the warp exit side of the eye. When viewed from the direction from the warp yarn inlet side to the warp yarn outlet side, the rear edge end of the input side guide web is located further forward than the front edge end of the output side guide web. In this way, an insertion opening is formed across the warp yarn direction between the leading edge of one guide web and the trailing edge of the other guide web.

  In the central section, the web is thus very narrow when viewed from the warp direction. On the other hand, in order to realize an appropriate warp side guide, each guide web is provided with an end section adjacent to the center section on both sides, and this end section is provided with a center section on the associated thread support surface of the eye. It comes to connect. The end sections of the guide webs extend in the warp direction along the entire yarn support surface that they adjoin. The end section is a so-called guide projection for the warp yarn, and stands up next to the yarn support surface. In this way, for example, when the warp yarn is temporarily lifted from the yarn support surface as a result of the acceleration or deceleration of the heald frame at high speed, the side guide of the warp yarn acts reliably. The guide track extends into the end section and also prevents the heald from twisting about its longitudinal axis. Such a design of the eye according to the invention results in improved warp side guides when the heald frame is in the mouth opening position. At the same time, an insertion opening of an appropriate size in the transverse direction is formed without difficulty.

  The two embodiments of heald described above can also be suitably combined.

  Furthermore, it is preferable if the yarn support surfaces of the two curved regions can be bent in the warp yarn direction. The yarn support surface is preferably designed to be flat in the direction crossing between the two guide webs. Thereby, warp yarn is prevented from sticking to the yarn support surface that draws a curve like a groove in the transverse direction. This side guide is provided by only two guide webs.

  The length of a curved region having a relatively small curvature, i.e., a long radius of curvature, can be made longer and is preferably at least twice the length of a curved region having a relatively large curvature. This length is measured along the surface of the corresponding curved area between the warp yarn inlet side and the warp yarn outlet side. The position where the minimum distance between the two thread support surfaces facing each other can be provided here in a curved region having a relatively small curvature. This arrangement forms a yarn support surface with the smallest possible curvature and minimizes the stress applied to the warp yarn.

  The two yarn support surfaces are preferably curved along the entire length of the warp yarn inlet side to the warp yarn outlet side. Here, it is preferable to provide two curved regions having different curvatures. The first curved region is adjacent to the warp yarn inlet side and moves to the second curved region extending to the warp yarn outlet side at the transition position. Here, it is convenient if the tangent line of the yarn support surface in the transition region touches both the curve of the first curve region and the curve of the second curve region at a position close to the transition region. The transition position between the two curved regions is formed with no corners or steps.

  The curvature of the first curved region is adapted to the warp yarn entrance angle, and the curvature of the second curved region is adapted to the warp yarn exit angle. This is performed, for example, by determining that the contact point of the two curved regions is a position where the warp yarn at the heel opening position of the heald frame, that is, the maximum rising point is in contact with the yarn support surface. be able to. Based on this method, and further, based on the known warp entry and exit angles, the radius or curvature of each curvilinear region can be determined so that the warp is brought into contact with the yarn support surface at each of the contact points. Can be stretched.

  The side guide web is preferably constructed such that the thickness in the central region and the two end regions is essentially constant. In this way, a plane facing the eye can be formed outside the heald body and inside the guide web, and the warp can slide along this plane.

  It is also advantageous if the length of the end section perpendicular to each adjacent yarn support surface has a dimension larger than the warp yarn diameter. In this way, even when the warp yarn is disconnected from the warp yarn support surface, a good side guide can be realized.

  The height of the end region perpendicular to the yarn support surface can be increased along the warp yarn direction towards the central region of the guide web. The narrow end of the end region can form an angle with the length direction of the heald body. Paths with this angle can be designed to draw straight lines and / or curves and / or curves back and forth. When the warp yarn passing through the eye reaches the narrow end of the end region, the warp yarn slides along the narrow end of the end region and is finally guided by the yarn support surface. Similarly, the warp thread passing through the heald frame between the two healds does not stick to the end region, but slides along the narrow side with the corners and eventually leaves the heald.

  In the heald according to the invention, the eye is preferably formed directly on the heald body or is bordered by the heald body. The heald is formed without an insert in the eye. In particular, there is no need to use an additional member such as a maillon.

  The hold is preferably made entirely of resin, and therefore constitutes a resin heald. Such healds can be manufactured, for example, by pouring into a mold, injection molding, or transfer molding. Therefore, the entire resin heald is integrally formed. In the manufacturing process, the connection work of a plurality of individual components can be omitted. Resin healds are lightweight and have the characteristics of corrosion resistance. For this reason, this resin heald is preferably used in a water jet jet loom and can operate at a very high speed.

  Preferred embodiments of the invention are described in the dependent claims and the specification, which is limited to explaining the most important features of the invention. The drawings to be cited are shown below.

It is the schematic of the heald seen from the cross direction of the warp direction. FIG. 3 is a schematic perspective view showing the principle of warp path through two heald frames shown as an example. It is the schematic which looked at the path | route of the warp of FIG. 2 from the horizontal direction. It is a schematic side view of the eye region of the heald body viewed from the transverse direction of the warp direction. FIG. 5 is a schematic view of the heald eye of FIG. 4 as viewed from the warp direction. It is the fragmentary sectional view which looked at the eye of Drawing 4 and Drawing 5 from the horizontal direction. FIG. 6 is a schematic perspective view of still another embodiment of the eye of the hald, showing that the warp support surface is a path that is substantially planar in the warp direction. FIG. 8 is a view showing an embodiment in which the guide web having a boundary with the eye on the side surface is modified to have a rounded narrow side with respect to the eye of FIG. 7.

  The invention relates to the heald 10 shown schematically in FIG. The heald 10 has end small holes (ear holes) 11 provided at both ends thereof. The end eyelet 11, not shown in detail here, is used to hold the heald to the heald support rail of the loom heald frame 12. An eye 14 is provided in the approximate center of the heald body 13 of the hold 10 to hold the warp yarn 15. Each warp yarn 15 passes through the eye 14 of the heald 10 to which it is associated in the warp yarn direction K from the warp yarn inlet side 16 of the eye 14 toward the warp yarn outlet side 17.

  To form the shed 20, the heald frame 12 moves in a vertical direction corresponding to the length direction L of the heald body 13 when the heald 10 is in the operating position. The warp yarn 15 starts from the backrest or parts rod 21 of the loom, passes through the eye 14 of the heald 10 disposed on the heald frame 12, and changes the traveling direction up and down according to the position of the heald frame 12. Thus, the warp yarn 15 that has started to move from the horizontal plane enters the warp yarn inlet side 16 of the eye 14 at the warp yarn inlet angle α and exits from the warp yarn outlet side 17 of the eye 14 at the warp yarn outlet angle β. The warp yarn entrance angle α and the warp yarn exit angle β are measured as angles formed between the longitudinal center axis A of the warp yarn 15 and the horizontal plane E, respectively. The warp yarn entry angle α and the warp yarn exit angle β are different depending on whether the heald frame 12 is located at the upper or lower hook position. Furthermore, the warp yarn entrance angle α and the warp yarn exit angle β are different depending on the heald frame 12 disposed behind. Since the distance between the heddle 12 and the backrest 21 is longer than the distance between the heald 12 and the woven end 22, the warp entry angle α is usually smaller than the warp exit angle β.

  The eye 14 has a special shape in order to improve the holding force of the warp yarn 15 on the eye 14. In the length direction L of the heald main body 13, the eye 14 is partitioned by two thread support surfaces 26 facing each other, and a space is provided between them. In a preferred embodiment, the yarn support surface 26 forms a curved path along the entire length from the warp yarn inlet side 16 to the warp yarn outlet side 17 in the warp yarn direction K. The yarn support surface that draws a curve is divided into, for example, a first curve region 27 and a second curve region 28. In the present embodiment, the curvatures of the two curved regions 27 and 28 of the yarn support surface 26 are constant. That is, the yarn support surface 26 is a curve having the first radius R1 in the first curved region 27 and a curve having the second radius R2 in the second curved region. The two radii R1 and R2 are constant. Since the length of the first radius R1 is shorter than the second radius R2, the first curvature (1 / R1) has a larger value than the second curvature (1 / R2). In the present embodiment, the center point of the second radius R2 of the second curved region 28 is on the longitudinal center plane M extending in the longitudinal direction L passing through the center of the heald 13 in the region of the eye 14. . In the present embodiment, the two yarn support surfaces 26 facing each other are separated by at least the central axis M in the length direction. The position having the smallest interval is in the second curved region 28 having a smaller curvature.

  4 and 6, it can be seen that the first curved region 27 starts immediately from the warp yarn inlet side 16 of the eye 14. The first radius R1 of the region or the first curvature 1 / R1 is adapted to the warp yarn entrance angle α. For this reason, the curvature of the first curved region 27 is the warp inlet of the heald frame 12 in which the tangent to the fixed point at which the warp yarn 15 starts to contact the yarn support surface 26 in the first curved region 27 is in the upper or lower hook region. It is determined so as to surround an angle formed with the plane E having an angle corresponding to the angle α. The center point of the first radius R <b> 1 of the first curved region 27 is between the warp yarn inlet side 16 and the longitudinal center surface M of the heald body 13.

  The section length of the yarn support surface 26 that becomes the second curved region 28 is particularly shorter than the section length of the yarn support surface 26 that becomes the first curved region 26. At the transition position 30, the two sections of the yarn support surface 26 transition from the first curved region 27 to the second curved region 28 without any step or corner. The tangent of the yarn support surface 26 at the transition position 30 is the same as the tangent of the two ends of the yarn support surface 26 of the first curved region 27 and the second curved region 28.

  In the present embodiment, only two curved regions 27 and 28 are provided. As a modification of this embodiment, it is of course possible to provide a larger number of curved areas, so that, for example, the first curved area 27 adjacent to the warp yarn inlet side 16 and the warp yarn outlet side 17 are adjacent. A transition having no step or corner can be formed at the transition position 30 between the second curved region 28 and the second curved region 28.

  As shown schematically in FIG. 3, depending on the position of the heald frame 12 in the warp yarn direction K, and further depending on whether the corresponding heald frame 12 is on the upper or lower lip position, the warp yarn inlet The angle α and the warp exit angle β may be changed. For example, the warp yarn entry angles α1 and α2 and the warp yarn exit angles β1 and β2 can be indicated. In order to adapt the heald 10 to the path of the warp yarn 15, the range of the warp yarn input angle and the range of the warp yarn output angle can be specified, and the curvature of the yarn support surface 26 related to the first curved region 27 and the second curved region 28. Can be adapted to the angular range assigned to each. For heald frames 12 given different angular ranges, it is possible to provide healds with thread support surfaces 26 that draw different curves. For example, this configuration is useful when using a loom having a very large number of heald frames. In the case of a simple weaving machine, the warp yarn entry angle and the warp yarn exit angle of each heald frame 12 only fluctuate within an allowable angle range. In this case, the healds 10 used may be the same. it can. For example, an angle range between 5 ° and 10 ° can be specified for the warp entry angle α and the warp exit β, but in this case, the same heald 10 can be used.

  When the warp entry angle and the warp exit angle of the heddle frame are greatly different when the heald frame is above the heel position and below the heel position, the two thread support surfaces 26 of the heald 10 have different curvatures. Can be provided. However, the two thread support surfaces 26 of the eye 14 of the heald 10 are preferably symmetrical.

  The eye is partitioned by a guide web 33 on the inlet side and a guide web 34 on the outlet side in a direction Q that crosses the length direction L of the main body 13 and crosses the warp yarn direction K. The two guide webs 33 and 34 are arranged in the transverse direction Q together with the side gap x. The side gap x defines the eye width or spacing in the transverse direction Q. The outer surfaces 35 of the two guide webs 33, 34 facing away from the eye 14 form a seamless flat outer surface with the remaining outer surface of the heald body 13 adjacent to the guide web. The inner surfaces 36 of the two guide webs 33, 34 facing the eye 14 are flat and made without any corners or steps.

  Each guide web 33, 34 has a central section 37 that is adjacent to one end section 38 on both sides. The two end regions 38 of the guide webs 33, 34 each partition one of the two support surfaces 26. The end regions 38 are clearly distinguished from the thread support surfaces 26 assigned to them.

  The guide web 34 on the exit side has a leading edge 38 associated with the warp entry side 16. The guide web 33 on the inlet side has a trailing edge 40 associated with the warp outlet side 17. The leading edge 39 and the trailing edge 40 are arranged in the warp yarn direction K with an insertion gap y. Most of the leading edge 39 and the trailing edge 40 are parallel to each other. The insertion gap y is longer than the side gap x. The side gap x is usually not long enough to insert the warp yarn 15 into the eye 14. For this reason, the two guide webs 33, 34 have an insertion opening formed by an insertion gap y in their central region 37, and the insertion needle having the warp 15 crosses the warp yarn direction K, It can be passed in the direction Q or at an angle formed between the two guide webs 33, 34.

  In the central region 37, the two guide webs 33, 34 have a certain width in the warp yarn direction K. The widths of the guide webs 33, 34 increase toward the corresponding yarn support surface 26 in the end regions of the guide webs 33, 34. End sections 38 extend across the entire yarn support surface 26 adjacent thereto. In this manner, in the region of the yarn support surface 26, the side guide of the warp yarn 15 is reliably formed regardless of the width of the guide webs 33 and 34 in the central region 37. The height of the end region 38 is defined perpendicular to the yarn support surface 26, and corresponds to at least the diameter of the warp yarn 15 in this embodiment, but can be set to a larger dimension. It can also be at least twice as long as the diameter. In this way, during the operation of the loom, the side guide of the warp yarn 15 can be improved even if the side guide moves away from the yarn support surface 26, for example when the heald frame is suddenly decelerated or accelerated.

  The leading edge 39 and the trailing edge 30 of the central region 37 of the guide region each follow the narrow side 41 of the end region 38 on two sides. The front edge 39, the rear edge 40, and the narrow side 41 may have a corner at a transition position to the outer surface 35 and the inner surface 36, or may have a roundness so as not to have a corner.

  The narrow side 41 is angled with respect to the length direction L and the warp direction K. Accordingly, the distance between the two narrow sides 41 of the inlet side guide web 33 or the outlet side guide web 34 facing each other is directed toward the warp yarn inlet side 16 or the warp yarn outlet side 17 and farther from each central section 37. Become. The warp yarn 15 that comes into contact with the narrow side 41 as a result of movement in the transverse direction Q by the inclined narrow side 41 of the end region 38 is the associated yarn as the heald 10 continues to move in its length direction L. The direction is changed toward the support surface 26. Due to the inclination of the narrow side 41, the warp yarn 15 on the narrow side slides along the narrow side 41 and finally slides down from the end region 38 and settles on the yarn support surface 26.

  The same effect occurs for warps passing between two adjacent healds. As a result of the lateral movement, the warp yarn contacts the narrow side 41 of the end region 38 in an unexpected movement. Such warp yarn slides along the sloping narrow side 41 and eventually slides off the end region 38 and never gets stuck on the heald 10 thereafter.

  The inclined narrow side 41 of the end region 38 may be linear or may have a path having a single or a plurality of curved portions.

  As a modification of this embodiment according to FIGS. 4 to 6, the embodiment shown in FIGS. 7 and 8 has a yarn support surface 26 that is basically flat in the warp yarn direction K and does not draw a curve. In all embodiments, the thread support surface 26 does not curve in the transverse direction Q. Side guides for the warp yarn 15 are provided by the end regions 38 of the guide webs 33, 34.

  The present invention relates to a heald 10 that has an eye 1 and is manufactured as a resin heald and can be integrally formed from a resin material. The heald 10 has an eye 14 for holding the warp yarn 15. In the length direction L of the main body 13, the eye 14 is partitioned by two thread support surfaces 26 facing each other. According to one embodiment of the heald 10 according to the present invention, the thread support surface 26 is formed by a curved path from the inlet side 16 to the outlet side 17 of the eye 14. The curvature of the first curved region 27 joined to the yarn inlet side 16 is larger than the curvature of the second curved region 28 joined to the yarn outlet side 17. The eye 14 is partitioned by two guide webs 33 and 34 in a transverse direction Q that crosses the warp yarn direction K and crosses the length direction L. These end regions 38 may pass through both sides of the yarn support surface 26 along the entire length of the yarn support surface from the warp yarn inlet side 16 to the warp yarn outlet side 17 in yet another form of the heald 10. In the central region, the two guide webs 33, 34 in the warp direction K are arranged so as to form an insertion opening with an insertion gap y. The shape of the guide webs 33 and 34 and the shape of the yarn support surface 26 can be designed independently of each other. However, in the heald 10, they can be combined and mounted.

10 Held 11 Small hole at the end (ear hole)
12 Held frame 13 Held body 14 Eye (thread hole)
15 Warp Thread 16 Warp Thread Inlet Side 17 Warp Thread Outlet Side 20 String (Spear) 21 Parts Rod 22 Weaving End
23 Lead 26 Thread support surface 27 First curve area 28 Second curve area 30 Transition position 33 Entrance side guide web 34 Exit side guide web 35 Outer surface 36 Inner surface 37 Central area 38 End area 39 Front edge 40 Rear edge 41 Narrow side α Warp Entrance angle β warp exit angle A warp longitudinal center axis E horizontal plane K warp direction L length direction M lengthwise center plane Q of the heddle body transverse direction R1 first radius of curvature R2 second radius of curvature x side gap y insertion gap

Claims (15)

A heald body (13) provided with an eye (14) that holds the warp yarn (15) extending in the length direction (L) and passing from the warp yarn inlet side (16) to the warp yarn outlet side (17) in the warp yarn direction (K). )
The eye (14) is divided in the length direction (L) by two thread support surfaces (26) spaced apart from each other of the heald body (13), and each of the thread support surfaces has a first curved region. (27) and a second curve region (28),
The curvature (1 / R1, 1 / R2) of the yarn support surface (26) that draws a curve in the warp yarn direction (K) is different for the heald frame (12) in the two curved regions (27, 28). (10).   The heald according to claim 1, characterized in that the two curved regions (27, 28) draw a curve only in the warp yarn direction (K).   The heald according to claim 1, characterized in that the curvature (1 / R1, 1 / R2) is constant in the first curved region (27) and / or the second curved region (28).   The heald according to claim 1, characterized in that the length of the curved region (28) having a smaller curvature (1 / R2) is longer than the length of the other curved region (27).   The heald according to claim 1, characterized in that the entire yarn support surface (26) curves in the warp yarn direction (K).   The heald according to claim 5, characterized in that the position where the distance between the two yarn support surfaces (26) is at a minimum is in the curved region (28) having a smaller curvature (1 / R2). .   There is a transition position (30) between the two curved areas (27, 28), and the tangent to the yarn support surface (26) at the transition position (30) is the first curved area (27). Both of the adjacent end of the surface region of the yarn support surface (26) and the adjacent end of the surface region of the yarn support surface (26) of the second curved region (28). The heald according to claim 1.   When the heald frame (12) is at the mouth opening position, the curvature (1 / R1) of the first curved region (27) is adapted to the warp entry angle (α) and / or the second Held according to claim 1, characterized in that the curvature (1 / R2) of the curved region (28) is adapted to the warp yarn exit angle (β).   The heald according to claim 1, characterized in that the curvature (1 / R1) of the first curved region (27) is less than the curvature (1 / R2) of the second curved region (28). A heald body (13) provided with an eye (14) that holds the warp yarn (15) extending in the length direction (L) and passing from the warp yarn inlet side (16) to the warp yarn outlet side (17) in the warp yarn direction (K). )
The eye (14) is divided in the longitudinal direction (L) by two thread support surfaces (26) separated from each other of the heald body (13);
It consists of two guide webs (33, 34) that lie in the transverse direction (Q) with respect to the longitudinal direction (L) and delimit the eye (14) transverse to the warp direction (K),
A leading edge (39) assigned to the yarn inlet side (16) of one of the guide webs (34) and a trailing edge (40) assigned to the yarn outlet side (17) of the other guide web (34). The insertion opening for inserting the warp yarn (15) is formed in the transverse direction (Q) through the central region (37) in the warp yarn direction (K) with a gap y between each other,
The guide webs (33, 34) each have an end region (38) adjacent to the yarn support surface (26), and the end region (38) is in the warp yarn direction (K) assigned to it. A heald (10) for a heddle frame (12) extending over the thread support surface (26).   The thickness in the transverse direction (Q) of the end region (38) substantially corresponds to the thickness of the central region (37) of the guide web (33, 34). The heald according to claim 10.   The height of the end region (38) measured perpendicular to a particular yarn support surface (26) adjacent to the end region (38) exceeds the diameter of the warp yarn (15). The heald described in item 10.   Each of the end regions (38) has a narrow side (41) that passes from the adjacent central region (37) at an angle in the longitudinal direction (L) of the heald body (13). The heald according to claim 10.   11. A heald according to claim 1 or 10, characterized in that the eye (14) is directly delimited by the heald body (13). The heald according to claim 1 or 10, wherein the heald is a resin heald.

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