• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A connecting rod (11, 14, 20, 22) for a weaving frame weaving mechanism of a weaving machine comprising a cross-sectional profile with two long sides (45, 46) and two narrow sides (47, 48), and with a first end (42), and a connector (41, 43) attached to the first end (42) of the profile, the connector (41, 43) containing two plate-shaped projections (51, 52), each projection (51, 52) first section (54, 56) and a second section (55, 57), the first sections (54, 56) protruding from the first end (42) and arranged to connect the connecting rod (11, 14, 20 , 22) to an element (10, 12, 13, 21, 23) of the drive mechanism (3), the second sections (55, 57) each having a mounting surface (60), and each mounting surface (60) being complementary is glued in shape on one long side (45, 46) of the profile and on said long side (45, 46) of the profile. A weaving frame weaving machine driving mechanism comprising such a connecting rod, and a method of manufacturing such a connecting rod.
    公开号:BE1026385B1
    申请号:E20190027
    申请日:2019-03-22
    公开日:2020-03-25
    发明作者:Karim Asrih；Joost Deseyne；Dirk Sampers
    申请人:Picanol Nv；
    IPC主号:
    专利说明:

    Connecting rod for a weaving frame drive mechanism.
    Technical field and state of the art.
    The invention relates to a connecting rod for a weaving frame weaving mechanism driving mechanism of a weaving machine, a weaving frame driving mechanism of a weaving machine comprising such a connecting rod, and a method for manufacturing such a connecting rod.
    As is generally known, a shed-forming device includes several weaving frames, which are moved up and down by means of a drive mechanism. For each weaving frame, the drive mechanism contains several connecting rods and levers through which the weaving frame is coupled to a drive motor. In one embodiment, different drive motors are provided, in particular one drive motor for each weaving frame. In other embodiments, several or all weaving frames are coupled to a common drive motor.
    In order to allow weaving at high weaving speeds, and thus a movement of the weaving frames at high speed and / or acceleration, connecting rods of sufficient stiffness are necessary. On the other hand, a weight of the connecting rods, which are moved together with the weaving frames, must be kept small.
    EP 1988195 B1 shows a connecting rod for a weaving frame driving mechanism of a weaving machine with
    BE2019 / 0027 two pivot levers, the connecting rod containing two tubular shafts connecting the two pivot levers, which are spaced in a vertical direction, and at least one spacer arranged between the two shafts, with connecting ends at open ends of the two shafts provided for connecting the connecting rod to the pivot levers of the drive mechanism. Each connector contains two parallel projections, which are secured to an intermediate element by rivets, the intermediate element having two clamping plates inserted into the open ends of the two tubular shafts and glued to the inside of the shafts.
    US 5,255,719 shows a connecting rod comprising a flat tube and two connectors attached to both ends of the flat tube. Each connector includes two projections with a first section and a second section, the first sections being arranged to allow mounting of a pivot intended to couple a corresponding lever. For connection of the connector and the flat tube, the second sections of the projections are provided with two deformable blocking clamp plates, which penetrate into the flat tube and cooperate with spacer or expander screws accessible through perforations in the flat tube wall are made.
    Summary of the invention.
    It is the object of the invention to provide a rigid, lightweight connecting rod for a weaving frame weaving machine driving mechanism. It is further the object of the invention to provide a method of manufacturing
    BE2019 / 0027 such a rigid, lightweight connecting rod for a weaving frame driving mechanism of a weaving machine.
    In a first aspect, a weaving frame drive mechanism connecting rod is provided with a weaving machine comprising a cross-sectional profile with two long sides and two narrow sides, and having a first end, and a connector attached to the first end of the profile, the connector having two plate-shaped protrusions, each protrusion having a first section and a second section, the first sections protruding from the first end and arranged to connect the connecting rod to an element of the drive mechanism, and the second sections each have a mounting surface, each mounting surface is complementary in shape on one long side of the profile and is glued to said long side of the profile.
    The profile in embodiments of the invention has a second end, with a further connector similar in design to the connector attached to the first end, a different connector design or no connector attached to the second end. If no connecting piece is attached to the second end, the second end of the profile itself functions as a connecting piece. The terms first, second, etc. used in the context of the application are only used to distinguish one element from other elements and do not limit the order and / or importance of the elements.
    The cross-sectional profile with two long sides and two narrow sides is preferably a profile with one
    BE2019 / 0027 at least mainly rectangular cross section. In one embodiment, the cross section is constructed as a rectangle with curved narrow sides. In other embodiments, the long sides and the narrow sides are slightly curved. In another embodiment, the long sides are concave curved toward a center of the profile. In yet another embodiment, the long sides and the narrow sides are all flat and perpendicular to each other. In yet another embodiment, the angles between the long sides and the narrow sides of the profile are slightly rounded to avoid notch effects.
    The length of long sides of the profile depends, among other things, on the type of connecting rod. In particular, a length is chosen to allow a sufficient bending stiffness, while keeping a weight of the profile low. For example, a length of the long sides is between 55 mm and 65 mm for a connecting rod used to connect two levers mounted on opposite sides of the weaving frame.
    The protrusions are plate-shaped. In the context of the application, sheet-like describes a thin object that is either flat or curved. For example, the long sides of the first end are parallel to surfaces of the plate-shaped protrusions that face each other to form a fork, with an adjacent element, for example, a pivot lever clamped within the fork.
    In the context of the application, gluing describes a technique for joining two elements of the same or different material with the application of an intermediate layer of
    BE2019 / 0027 adhesive or glue. Gluing is also referred to as adhesive bonding, adhesive bonding or simply bonding. In gluing, two elements of different material can be joined while avoiding mechanical stress and / or recesses required for a mechanical joint using rivets or screws. The type of adhesive or glue can be suitably selected by those skilled in the art depending on the materials of the elements to be joined.
    The long sides of the profile, to which the second sections are attached with their mounting surface, provide a sufficiently large contact surface to ensure reliable bonding of the second sections to the long sides of the profile.
    In one embodiment, the profile has an I-shaped cross section, the protrusions being attached to outer surfaces of the long sides of the profile.
    [0015] In preferred embodiments, the profile is a hollow profile, in particular a hollow profile made of a lightweight metal, such as aluminum or aluminum alloy. Such a hollow profile is, for example, a drawn hollow profile. By providing a hollow profile, a weight of the profile can be reduced while sufficient rigidity is ensured. The provision of lightweight connecting rods allows a restriction of the inertial forces of the drive mechanism when weaving, so that the drive mechanism can be activated with less power. This is particularly advantageous when weaving at high speeds with a drive mechanism with one drive motor for each weaving frame since such motors are preferably limited
    BE2019 / 0027 ability. This further allows to keep the applied forces quite low even when weaving at high speeds. This is also advantageous when a dobby or other shed-forming mechanism is used to drive the weaving frames. The protrusions of the connecting piece are in preferred embodiments made of a different material, in particular steel, in which glues allow a connection of the elements of different material.
    The hollow profile preferably has an at least substantially rectangular cross section, with inner corners of the hollow profile slightly rounded to avoid notch effects. In one embodiment, thickenings and / or cavities are provided on the inner side surfaces of the hollow profile to allow an accumulation of glue for gluing the second sections of the protrusions against the inner side surfaces of the hollow profile. Alternatively or additionally, the protrusions are provided with thickenings and / or cavities on the mounting surface. In one embodiment, the thickenings and / or cavities are also used for aligning the protrusions with respect to the profile.
    In preferred embodiments, the second sections are received within the first end of the hollow profile, and the second sections are glued to inner side surfaces of the long sides of the hollow profile.
    In one embodiment, the second sections of the two protrusions abut when received within the first end of the hollow profile. In preferred embodiments, a length is from the narrow sides of the hollow
    BE2019 / 0027 profile longer than a combined thickness of the two second sections of the two protrusions contained within the first end. Because of this, when incorporated within the first end of the hollow profile, the second sections are spaced apart.
    In one embodiment, the two projections are connected to each other, for example by spot welding, whereby additional crosspieces are added depending on a distance between the projections. When connecting the two projections, a distance between the two projections is determined in a place where the two projections are connected to each other. Connecting the two projections together has the advantage that when the two projections are forced apart for mounting the first sections on an element of the drive system, for instance on a bearing of a pivot lever, the glue connection between the hollow profile is and the protrusions are less loaded compared to an embodiment, in which the two protrusions are separated from each other and are only attached to the hollow profile by means of the glue connection.
    In preferred embodiments, the connector includes an intermediate member disposed between the second sections of the two projections. In intermediate embodiments, the intermediate member is designed such that the protrusions are pressed against the inner side surfaces of the hollow profile. The intermediate element provides extra strength of the adhesive bond. In one embodiment, the intermediate element is removably arranged between the protrusions, the intermediate element being removed, for example, after the glue has dried. In other embodiments, the intermediate element remains
    BE2019 / 0027 after drying the glue in the hollow profile, so that it provides additional strength to prevent the glued protrusions from coming off the inner side surfaces of the hollow profile.
    In one embodiment, the intermediate element and the protrusions are provided with complementary alignment elements, in particular with taps and openings. In one embodiment, the second sections of the protrusions have openings that can enter in taps from the intermediate element, so that the protrusions are aligned with respect to the intermediate element. Alternatively, thickenings are provided on the second sections of the protrusions. In yet another embodiment, the intermediate member and the protrusions both include a combination of studs and openings.
    In one embodiment, the intermediate element is provided with an end stop on its front for a defined positioning of the intermediate element within the first end of the hollow profile. In this embodiment, the intermediate element is used to position the protrusions relative to the hollow profile.
    The intermediate element is preferably made of a relatively rigid material, in particular a plastic. As a result, the intermediate element can only be deformed within limits for mounting the intermediate element inside the hollow profile. The intermediate element pushes the second sections of the protrusions against inner side surfaces of the hollow profile to strengthen the adhesive bond.
    In one embodiment, each protrusion is a flat plate-shaped element, with a distance between the second sections
    BE2019 / 0027 equals a distance between the first sections. In preferred embodiments, each protrusion is a curved plate-shaped member, the distance between first sections of the protrusions being greater than the distance between the second sections disposed within the hollow profile. The protrusions are preferably formed and arranged mirror-symmetrically with respect to a centerline, both protrusions having two curves so that the first sections and the second sections are arranged in parallel.
    In one embodiment, the second sections have an at least substantially rectangular shape. In other embodiments, the second sections have a tapered end. Providing a tapered end increases the length of the second sections while keeping an overall weight of the element low. In case a hollow profile is provided, the tapered ends further facilitate insertion of the connector into the hollow profile and increase the spreading of the adhesive applied to the inner surfaces of the first end. In one embodiment, a distance between the ends decreases in the direction away from the first sections. This further enhances the effect of the tapered ends.
    In one embodiment, the ends are connected to each other by means of a connecting part. As a result, the two projections together form an integral unit, the two projections being properly aligned with each other. The two protrusions and the connecting part are in one embodiment manufactured as an integral and curved element, in particular a curved plate-shaped element. In other embodiments, the two protrusions are manufactured separately.
    BE2019 / 0027 In an embodiment, the connecting rod at the second end is not provided with a connecting piece or with a connecting piece which is different from the connecting piece provided at the first end. In other embodiments, two connectors are provided which are attached to the first end and the second end of the profile, respectively, each connector containing two projections having a first section and a second section, the second section being glued to said profile.
    According to a second aspect, a method is provided for manufacturing a connecting rod for a weaving frame driving mechanism of a weaving machine comprising a cross-sectional profile with two long sides and two narrow sides, and with a first end, and a connector the connector comprising two plate-shaped protrusions, each protrusion having a first section and a second section, the connector attached to the first end of the profile such that the first sections protrude from the first end and are arranged to connect the connecting rod to an element of the driving mechanism, and wherein mounting surfaces of the second sections, which mounting surfaces are each complementary in shape on one long side of the profile, are glued to said long side of the profile.
    [0029] In preferred embodiments, the profile is a hollow profile, the second sections being inserted into the first end of the hollow profile, and the second sections glued to inner side surfaces of the hollow profile, especially while the hollow profile is held in a jig or clamp. With the help of the mold or the clamp, a deformation of the hollow profile is added
    BE2019 / 0027 avoids insertion of the protrusions and fixing of the protrusions to the inner side surfaces. Furthermore, the jig or clamp can be used to apply a force to the hollow profile from the outside. This is advantageous since, generally, a quality of an adhesive bond or an adhesive bond depends on the forces exerted on joining the elements. When the hollow profile is held in a mold or clamp, high forces can be exerted while avoiding deformation due to the aforementioned high forces.
    In one embodiment, the protrusions are attached to an intermediate element which is arranged between the second sections of the two protrusions, the protrusions being inserted together with the intermediate element in the first end of the hollow profile. The intermediate element ensures precise positioning. The intermediate element is preferably an elastically deformable element, in which restoring forces of the intermediate element are used to force the protrusions against the inner side surfaces of the hollow profile. In one embodiment, the intermediate element is removed after the glue or adhesive has dried.
    In a third aspect, a weaving frame drive mechanism of a weaving machine containing at least one connecting rod with a profile and a connector containing two projections is provided. Preferably said connecting rod connects two levers which are arranged on opposite sides of the weaving frame. That connecting rod is longer than other connecting rods of the drive mechanism, especially with wide weaving machines. As a result, a whole
    BE2019 / 0027 system inertia can be significantly reduced when this connecting rod is designed as a lightweight connecting rod. However, the invention is not limited to the design of this connecting rod.
    Brief description of the drawings.
    In the following, an embodiment of the invention is described in detail with reference to the drawings. Throughout the drawings, like elements are designated by like reference numbers.
    Figure 1 shows a drive mechanism according to the invention;
    Figure 2 shows a connecting rod according to a first embodiment of the invention;
    Figure 3 shows an end of the connecting rod of Figure 2 in partial exploded view;
    Figure 4 shows the end of the connecting rod of figure 2 in exploded view;
    Figure 5 shows an end of the connecting rod similar to the connecting rod of Figure 2;
    Figure 6 shows a connecting rod partly in cross section according to a second embodiment of the invention;
    Figure 7 shows an enlarged view of part of the connector of Figure 6.
    Detailed description of embodiments of the invention Figure 1 shows part of shed-forming device 1 for a weaving machine with a weaving frame 2 and a
    BE2019 / 0027 driving mechanism 3 for the weaving frame 2. In a weaving machine, a number of weaving frames 2 and an equal number of driving mechanisms 3 are provided. For example, one drive mechanism 3 is assigned to one weaving frame 2 and is driven by a drive motor 4. Each weaving frame 2 can move between an upper position and a lower position.
    The driving mechanism 3 for driving the weaving frame 2 as shown in figure 1 comprises a crank 10 rotating about a crankshaft 5, a connecting rod 11, and a first pivot lever 12 rotating about a first pivot shaft 6. The first pivot lever 12 has a first arm 15, a second arm 16 and a third arm 17. The drive mechanism 3 further comprises a second pivot lever 13 which rotates about a second pivot axis 7. The second pivot lever 13 has a first arm 18 and a second arm 19. The drive mechanism 3 further includes a connecting rod 14 connecting the first arm 15 of the first pivot lever 12 to the first arm 18 of the second pivot lever 13, so that the second pivot lever 13 moves together with the first pivot lever 12. The connecting rod 11 is connected to the third arm 17 of the first pivot lever 12 via a mounting element 8, which mounting element 8 can slide along the third arm 17 and be fixed in position to the third arm 17.
    The weaving frame 2 is coupled to the second arm 16 of the first pivot lever 12 by means of a connecting rod 20 and a guide element 21 guided into the weaving machine. The second arm 19 of the second pivot lever 13 is connected to the weaving frame 2 via a connecting rod 22 and a guide element 23. The guide elements 21, 23 are preferably
    BE2019 / 0027 made of a lightweight metal, for example an aluminum alloy. The connecting rod 11 is connected to the crank 10 by a first hinge connection 30, which first hinge connection 30 is arranged eccentrically around the crankshaft 5. Furthermore, the connecting rod 11 is connected via the mounting element 8 to the third arm 17 of the first pivot lever 12 by a second hinge connection 31.
    The first pivot lever 12 is connected to the connecting rod 14 by a first hinge joint 32, while the second pivot lever 13 is connected to the connecting rod 14 by a second pivot joint 33. Furthermore, the first pivot lever 12 is connected to the connecting rod 20 by a first hinge connection 34, which connecting rod 20 is connected to the guide element 21 by a second hinge connection 35. Similarly, the second pivot lever 13 is connected to the connecting rod 22 by a first hinge connection 36, which connecting rod 22 is connected to the guide element 23 by a second hinge connection 37.
    One, several or each of the connecting rods 11, 14, 20, 22 may be designed as a lightweight connecting rod containing a profile and one connector or two connectors attached to the profile as described in more detail below with reference to Figures 2 to 4. Preferably, at least the connecting rod 14 connecting the first pivot lever 12 to the second pivot lever 13 is designed as a lightweight connecting rod 14 containing a hollow profile 40 and two connecting pieces 41, 43. The connecting piece 41 is at the first end 42 of the hollow profile 40 and the connecting piece 43 is attached to the second end 44 of the hollow profile 40. The hollow
    BE2019 / 0027 profile 40 is, for example, made of an aluminum alloy.
    In the embodiment shown in Figure 1, a fixation member 50 is provided on the connecting rod 14 to cooperate with a stabilizer (not shown). In other embodiments, no stabilizer is provided. Alternatively, in one embodiment, the hollow profile 40 is deformed, for example, by hydroforming or in any other suitable manner, so that a height of the connecting rod 14 in the direction of movement of the weaving frame 2 is greater at the height of a central section, as known, for example, from BE 1016228 A3 .
    The connecting rod 14 is shown in more detail in Figures 2 to 4.
    As shown in Figure 2, the connecting rod 14 includes a hollow profile 40 with an elongated cross section with two long sides 45, 46 and two narrow sides 47, 48. The hollow profile 40 has a first end 42 and a second end 44, wherein a connector 41 is attached to the first end 42 and a connector 43 is attached to the second end 44.
    In the shown embodiment, each connecting piece 41, 43 comprises two plate-shaped protrusions 51, 52 and an intermediate element 53 which is arranged between the protrusions 51, 52. The projections 51, 52 are, for example, made of steel and the intermediate element 53 is, for example, made of an elastically deformable material, in particular a plastic.
    As shown in Figures 3 and 4, each protrusion 51, 52 has a first section 54, 56 and a second section 55, 57, wherein
    BE2019 / 0027 as shown in figure 2, after mounting the connecting piece 41 on the hollow profile 40, the first sections 54, 56 protrude from the first end 42 of the hollow profile 40.
    In the shown embodiment, each projection 51, 52 is a curved plate-shaped element. The protrusions 51, 52 have two curves, with first sections 54, 56 and the second sections 55, 57 both arranged in parallel and the distance between first sections 54, 56 of the protrusions 51, 52 being greater than the distance between the second sections 55, 57 of the protrusions 51, 52.
    The first sections 54, 56 are provided for connecting the connecting rod 14 to an adjacent element of the drive mechanism, more particularly with the pivot levers 12, 13 (see Figure 1). In the embodiment shown, the first sections 54, 56 are arranged in parallel, that is, with surfaces of the plate-shaped protrusions 51, 52 facing each other, and spaced apart so that the pivot levers 12, 13 can pass between the first sections 54, 56 be clamped. In the embodiment shown, the first sections 54, 56 are provided with inner edges 58, 59 protruding from opposite surfaces of the first sections 54, 56 for connection to the pivot levers 12, 13. For mounting the connecting rod 14 on the pivot levers 12, 13, a gap formed between the first sections 54, 56 must be widened. The curves of the protrusions 51, 52 facilitate widening of the gap to mount the connecting rod 14 to the pivot levers 12, 13, while avoiding high forces acting on the second sections 55, 57 during mounting.
    BE2019 / 0027 The second sections 55, 57 of the connecting piece 41 are received inside the first end 42 of the hollow profile 40. To attach the connector 41 to the hollow profile 40, the second sections 55, 57 are glued to inner side surfaces of the long sides 45, 46 of the hollow profile 40. To this end, the second sections 55, 57 each have a mounting surface 60, each mounting surface 60 being complementary in shape on one long side 45, 46 of the hollow profile 40.
    In the embodiment shown, the mounting surface 60 and the long sides 45, 46 of the hollow profile 40 are each substantially flat, the inner side surfaces of the long sides 45, 46 being provided with bosses 61 to form cavities 62 between the thickenings 61, in which cavities 62 an adhesive can be collected.
    The intermediate element 53 and the protrusions 51, 52 are provided with complementary alignment elements. In the embodiment shown, the intermediate member 53 is provided with three studs 63 on each of its side surfaces which are inserted into openings 64 provided on the second sections 55, 57 of the two projections 51, 52 when mounting the intermediate member 53 between the protrusions 51, 52.
    An end stop 65 is provided on a front side of the intermediate element 53, wherein an insertion depth of the intermediate element 53 is limited within the first end 42 of the hollow profile 40 by means of the end stop 65.
    For the manufacture of the connecting rod 14, in one embodiment, the hollow profile 40 is placed in a mold or support (not
    BE2019 / 0027), which mold has an inner shape equal to the outer shape of the hollow profile 40.
    The protrusions 51, 52 are mounted on the intermediate element 53, with the studs 63 of the intermediate element 53 entering the openings 64, so that the protrusions 51, 52 are aligned with each other.
    An adhesive or adhesive (not shown) is applied to the inside of the first end 42 of the hollow profile 40, in particular at least at the location of the cavity 62, and the connector 41 containing the protrusions 51, 52 and the intermediate element 53 is introduced into the hollow profile 40. Before insertion, the intermediate element 53 is elastically deformed, after the insertion the restoring forces of the intermediate element 53 force the fastening surfaces 60 of the second sections 55, 57 of the protrusions 51, 52 against the inner side surfaces of the hollow profile 40. After insertion, the mounting surfaces 60 are pressed against the thickenings 61 of the hollow profile 40, and the glue present between the mounting surfaces 60 of the protrusions 51, 52 and the long sides 45, 46 of the hollow profile 40 provides the adhesive bond.
    During mounting of the connecting piece 41, the hollow profile 40 is pressed against an inner wall of the mold, to allow an outer shape of the hollow profile 40 to assume the shape of the mold.
    In order to exert a force during drying of the glue or adhesive, in one embodiment, an external pressure is provided on the outer side surfaces of the long sides 44, 45 of
    BE2019 / 0027 the hollow profile 40.
    In the embodiment shown in Figures 2 to 4, the mounting surfaces 60 have a substantially rectangular shape.
    In Figure 5, a first end 42 of a connecting rod 11, 14, 20 or 22 is shown which is designed as a lightweight connecting rod and which has a hollow profile 40 and a connector 41 attached to the first end 42. The connector 41 is attached to the first end 42 of the hollow profile 40 in a similar manner to the connector 41 as shown in Figures 2 to 4. Furthermore, at the second end of the hollow profile 40 there is a connector similar in design to the connector 41, a connector different in design or no connector attached. If no connector is attached, the second end itself can function as a connector. For example, the connecting rods 11, 20 and 22 (see figure 1) can be provided at the first end 42 with a connecting piece 41 according to the invention, in particular at the end near a pivot lever 12 or 13, while at the second end a different connecting piece is provided. On the other hand, the connecting rod 14 connecting the two pivot levers 12, 13 (see figure 1) can be provided at both ends 42,44 with a connecting piece 41,43 according to the invention.
    Figure 6 shows two ends 42,44 of a connecting rod 14 with two connecting pieces 41,43 partly in cross section according to a second embodiment. Figure 7 shows the connector 41 of Figure 6. The connectors 41, 43 are similar in design to the connectors 41, 43
    BE2019 / 0027 in Figures 1 to 5 and for the same or similar elements, the same reference numbers are used and reference is made to the above description. In contrast to the first embodiment, the second sections 55, 57 of the protrusions 51, 52 have a tapered end 24, 25. The shape of the tapered ends 24, 25 is for example only, and other shapes of the ends are achievable.
    As shown in more detail in Figure 7, the ends 24, 25 of each protrusion 51, 52 are joined together by a connecting part 26. The protrusions 51, 52 and the connecting part 26 in one embodiment are made of an integral element, in particular an integral element which originates from a plate-shaped element, which is bent to arrange the two protrusions 51, 52 towards each other. In other embodiments, the projections 51, 52 are manufactured separately and connected by means of the connecting part 26, for example by welding the connecting part 26 between the two projections 51, 52. The two connected projections 51, 52 are well aligned with respect to each other.
    A distance between the ends 24, 25 decreases towards the end so that the ends 24, 25 together form a wedge, which facilitates insertion of the connectors 41, 43 into the hollow profile 40. In addition, the shape of the ends 24, 25 increases the spreading of the adhesive used on the inside of the ends 42, 44 of the hollow profile 40. Similar to Figures 2 to 4, an intermediate element 53 can be placed between the two protrusions 51, 52 are arranged and positioned between the interconnected protrusions 51, 52 by taps 63 of the intermediate element 53 passing into openings 64 of the protrusions
    BE2019 / 0027
    51, 52 enter.
    The skilled person will understand that the drive mechanism according to the invention can be used with different types of weaving machines, such as air weaving machines, lance weaving machines, water jet weaving machines, projectile weaving machines and other types of weaving machines. The drive mechanism according to the invention or the connecting rod according to the invention can also be mounted on existing weaving machines.
    The long sides 45,46 of the profile 40 and the mounting surfaces 60 of the connecting piece 41 to which the connecting piece 41 and the profile 40 are glued together are, in alternative embodiments, additionally provided with elements for mechanical connection, in particular a click appropriate or form appropriate connection. For example, in one embodiment, the mounting surface 60 of the connector 41 is locally deformed to form ribs projecting from the mounting surface 60, which are inserted into respective recesses or notches provided on the long sides 45, 46 of the hollow profile 40. Alternatively, the long sides 45, 46 of the hollow profile 40 are locally deformed to form ribs projecting to an inner side of the hollow profile 40, which are inserted in respective recesses or notches on the mounting surface 60 of the connector 41 .
    The connecting rod, method and drive mechanism of the invention are not limited to the embodiments described by way of example and shown in the drawings. Alternatives and combinations of the described
    BE2019 / 0027 and illustrated embodiments covered by the claims are also possible.
    权利要求:
    Claims (16)
    [1]
    Conclusions.
    Connecting rod for a driving mechanism (3) for a weaving frame (2) of a weaving machine comprising a cross-section profile with two long sides (45, 46) and two narrow sides (47, 48), and with a first end (42 ), and a connector (41, 43) attached to the first end (42) of the profile, the connector (41, 43) containing two plate-shaped projections (51, 52), each projection (51, 52) having a first section (54, 56) and a second section (55, 57), the first sections (54, 56) protruding from the first end (42) and arranged to connect the connecting rod (11, 14, 20, 22 ) to an element (10, 12, 13, 21, 23) of the drive mechanism (3), characterized in that the second sections (55, 57) each have a mounting surface (60), each mounting surface (60) being complementary in mold is glued to one long side (45, 46) of the profile and to the aforementioned long side (45, 46) of the profile.
    [2]
    Connecting rod according to claim 1, characterized in that the profile is a hollow profile (40), in particular a hollow profile (40) made of aluminum or aluminum alloy.
    [3]
    Connecting rod according to claim 2, characterized in that the second sections (55, 57) are received inside the first end (42) of the hollow profile (40), and the second sections (55, 57) on the inner side surfaces of the long sides (45, 46) of the hollow profile (40) are glued.
    [4]
    Connecting rod according to claim 3, characterized in that a length of the narrow sides (47, 48) of the hollow profile
    BE2019 / 0027 (40) is longer than a combined thickness of the two second sections (55, 57) of the two protrusions (51, 52) contained within the first end (42).
    [5]
    Connecting rod according to claim 3 or 4, characterized in that the connecting piece (41, 43) comprises an intermediate element (53) which is arranged between the second sections (55, 57) of the two projections (51, 52).
    [6]
    Connecting rod according to claim 5, characterized in that the intermediate element (53) and the protrusions (51, 52) are provided with complementary alignment elements, in particular with studs (63) and openings (64).
    [7]
    Connecting rod according to claim 5 or 6, characterized in that the intermediate element (53) is provided with an end stop (65) at its front for a defined positioning of the intermediate element (53) within the first end of the hollow profile (40) .
    [8]
    Connecting rod according to any one of claims 5 to 7, characterized in that the intermediate element (53) is made of a plastically deformable material, in particular a plastic.
    [9]
    Connecting rod according to any one of claims 2 to 8, characterized in that each projection (51, 52) is a curved plate-shaped element, the distance between first sections (54, 56) of the projections (51, 52) being greater than the distance between the second sections (55, 57) arranged inside the hollow profile (40).
    BE2019 / 0027
    [10]
    Connecting rod according to any one of claims 1 to 9, characterized in that the second sections (55, 57) have a tapered end (24, 25).
    [11]
    Connecting rod according to any one of claims 1 to 10, characterized in that ends (24, 25) of the second sections (55, 57) are connected to each other by means of a connecting part (26), in particular a distance between the ends (24, 25) decrease in a direction away from the first section (54, 56).
    [12]
    Connecting rod according to any one of claims 1 to 11, characterized in that two connecting pieces (41, 43) are provided, which are respectively attached to the first end (42) and a second end (44) of the profile, each connecting piece ( 41, 43) containing two protrusions (51, 52) with a first section (54, 56) and a second section (55, 57), the second section (55, 57) being glued to said profile.
    [13]
    Method for manufacturing a connecting rod (11, 14, 20, 22) for a driving mechanism (3) for a weaving frame (2) of a weaving machine comprising a cross section profile with two long sides (45, 46) and two narrow sides (47, 48), and having a first end (42), and a connector (41, 43), the connector (41, 43) containing two plate-shaped projections (51, 52), each projection (51, 52 ) has a first section (54, 56) and a second section (55, 57), the connector (41, 43) being attached to the first end (42) of the profile such that the first sections (54, 56) protrude from the first end (42) and are arranged to connect the connecting rod (11, 14, 20, 22) to an element
    BE2019 / 0027 (10, 12, 13, 21, 23) of the drive mechanism (3), characterized in that mounting surfaces (60) of the second sections (55, 57), which mounting surfaces (60) are each complementary in shape to one long side (45, 46) of the profile are glued to the aforementioned long side (45, 46) of the profile.
    [14]
    Method according to claim 13, characterized in that the profile is a hollow profile (40), the second sections (55, 57) being inserted in the first end (42) of the hollow profile (40), and the second sections (55, 57) are glued to inner side surfaces of the hollow profile (40), especially while the hollow profile (40) is held in a jig or a clamp.
    [15]
    Method according to claim 13 or 14, characterized in that the protrusions (51, 52) are attached to an intermediate element (53) which is arranged between the second sections (55, 57) of the two protrusions (51, 52), the protrusions (51, 52) together with the intermediate element (53) being inserted into the first end (42) of the hollow profile (40).
    [16]
    A weaving frame weaving machine driving mechanism comprising at least one connecting rod (11, 14, 20, 22) according to any one of claims 1 to 12.
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    同族专利:
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    BE1026385A1|2020-01-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1391656A|1971-05-28|1975-04-23|Staeubli Ag|Power transmitting rod incorporating a releasable fastening|
    US5255719A|1991-05-15|1993-10-26|S.A. Des Etablissements Staubli |Connectors for joining connecting rods with levers for controlling heddle frames in weaving looms|
    BE1016228A3|2004-10-07|2006-05-02|Picanol Nv|Dobby for weaving loom, includes hollow connecting rod made by hydroforming|
    FR2915754B1|2007-05-04|2009-06-12|Staubli Faverges Sca|ROD FOR A DRAWING SYSTEM AND WOVEN WEAVING COMPRISING SUCH A LINK.|
    法律状态:
    2020-05-04| FG| Patent granted|Effective date: 20200325 |
    优先权:
    申请号 | 申请日 | 专利标题
    IB2018067590|2018-06-29|
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