Buckle wire clamp for fixing free end of buckle wire to buckle reel

Abstract

A snap wire clamp for securing a free end of a snap wire to a snap reel is disclosed. The snap wire clamp (10) is configured to prevent the snap wire (CL) from loosening from the snap reel (CR). The snap wire clamp (10) comprises at least one attachment portion (12, 14) shaped such that it removably attaches the snap wire clamp (10) to at least one corresponding mating portion (102) of the snap wire reel (CR) at a location along an outer edge portion (118, 120) of the snap wire reel (CR). The snap wire clamp (10) further comprises a pressing portion (16) shaped such that it engages with at least one corresponding portion (204) of the snap wire (CL) wound on the snap reel (CR) to at least prevent a free end portion of the snap wire (CL) from radially separating from the snap reel (CR). The invention also provides a snap reel (CR) and a snap reel assembly.

Description

[0001] This application is a divisional application of the invention of a snap wire clamp for fixing the free end of a snap wire to a snap reel, the applicant is Composite Clamp Systems Co., Ltd., the application date is September 28, 2021, the application number is 202111140941.1, and the name is: A snap wire clamp for fixing the free end of a snap wire to a snap reel. Technical Field

[0002] The present invention generally relates to an apparatus for producing sausage-shaped products. In particular, the present invention provides a snap wire clamp suitable for use with a snap wire wound on a snap reel, a snap reel for storing the wound snap wire thereon, and a snap reel assembly including a snap reel, a snap wire wound on the snap reel, and the snap wire clamp. Background Art

[0003] In practice, for example in the production of sausage-like products (e.g. sausages), it is known that the filling material is supplied by a filling machine through a filling tube which constitutes a component of the filling device of a snap-on sealing machine into a tubular packaging shell, which is stored on the filling tube and is closed at its front end (i.e. the end pointing in the direction of the filling material supply) by a sealing device (e.g. a sealing snap).

[0004] The sealing buckle is provided to the buckle sealing machine in the form of a buckle line of a plurality of sealing buckles (usually referred to as R buckles in practice) arranged in a row. When viewed from the side, it can be seen that the buckle line may have a wave shape with regularly arranged ridges or crests and depressions or troughs.

[0005] The snap wire is usually stored wound on a snap reel, from which the snap wire can be unwound and supplied to the snap sealer. Such a reel includes a central hub, which is used to be connected to the corresponding shaft of the snap sealer and rotates around the shaft when the snap wire is unwound. In order to replenish the snap supply of the snap sealer, or to change the type of snap supplied to the snap sealer, the snap reel is replaceable. During the storage and transportation of the snap reel, the free end of the snap wire wound thereon must be fixed to prevent it from being separated from the snap reel, thereby preventing the snap wire from being unwound and / or avoiding interlocking with other reels or objects. A universal snap is formed by a continuous metal wire, which may include sharp edges or other features that may cause danger. The free end of this metal wire snap wire may especially cause risks. Therefore, it is also desirable to fix the free end of this snap wire to reduce the risk of injury in the workplace.

[0006] European patent publication EP 1 567 418 A1 discloses a reel comprising a metal snap wire and a separate fixing element which, in the region of its free end, forms a releasable connection with a portion of the metal snap wire belonging to another winding, thereby fixing the free end to prevent it from loosening.

[0007] While the above-described known securing elements provide an adequate way of securing the free end of a metal snap wire (especially when compared to the conventional practice of securing the free end with a piece of tape), there remains a need for improved securing devices. Summary of the invention

[0008] As will be described in detail below, the present invention meets the above-mentioned need for securing the free end of a snap cord to a snap reel in an improved manner while providing additional advantages over known securing elements.

[0009] In a first aspect of the present invention, there is provided a snap wire clamp suitable for use with a snap wire wound on a snap reel. The snap wire clamp includes at least one attachment portion configured to be removably attached to a mating portion of the snap reel for attaching the snap wire clamp to the snap reel. The snap wire clamp also includes a clamping portion including at least one flexible engagement element shaped so as to engage with at least one corresponding portion of a free end portion of the snap wire wound on the snap reel. The at least one attachment portion and the clamping portion are configured so that the free end portion of the snap wire wound on the snap reel can be fixed by attaching the at least one attachment portion to the mating portion, at least preventing it from being separated from the snap reel in the radial direction.

[0010] The snap wire clamp of the first aspect of the invention is particularly advantageous in that the securing of the free end of the snap wire can be achieved in a single step of removably attaching the snap wire clamp to a selected position along the mating portion of the snap reel, thus providing a quick and convenient means of attachment.

[0011] It should be understood that the radial direction is defined relative to the winding axis of the snap wire, that is, the radial direction is perpendicular to the winding axis. In some embodiments, if the free end portion of the snap wire radially extends to a position beyond the radially outermost portion of the snap reel (e.g., the outer edge of the side wall of the snap reel), the free end portion of the snap wire is considered to have been separated from the snap in the radial direction. In other embodiments, if the free end portion of the snap wire is separated from the outer peripheral surface of the hub of the snap reel, or from another part of the same snap reel on which the free end portion is wound, the free end portion of the snap wire is considered to have been separated from the snap in the radial direction.

[0012] In a preferred embodiment of the first aspect of the present invention, the engagement portion is configured to engage with a corresponding portion of the snap reel by attaching the attachment portion to a mating portion of the snap reel.

[0013] Alternatively or additionally, the engagement portion is configured to secure the free end portion of the snap wire by engaging with the corresponding portion, at least preventing it from being separated radially from the snap reel. For example, by engaging at least one corresponding portion of the free end portion with the at least one flexible engagement element and biasing it against the snap reel, the radial freedom of the free end portion of the snap wire can be physically eliminated. In further or additional preferred embodiments, the at least one engagement element includes at least one interlocking member, the at least one interlocking member being configured to interlock with at least one corresponding portion of the snap wire.

[0014] Alternatively or additionally, the attachment portion is configured so that the snap wire clamp is attached to the snap reel at a freely selectable position along at least one corresponding mating portion of the corresponding adaptation. It is particularly preferred that the attachment portion is configured so that the snap wire clamp can be attached to the snap reel at a freely selectable position along the circumference of the snap reel. The position of the snap wire clamp relative to the snap wire and the part of the snap wire that is engaged by at least one flexible engagement portion of the clampable portion of the snap wire are determined by the selected position at which the snap wire clamp is attached to the snap reel. Therefore, the free end portion of the snap wire can be advantageously fixed to the snap reel regardless of the circumferential position of the free end portion. For example, the mating portion of the snap reel is arranged to extend along the outer edge portion of the snap reel, preferably around the entire circumference of the snap reel.

[0015] Alternatively or additionally, the at least one flexible engagement element is configured to constrain the radial freedom of the free end of the snap wire, at least so that the free end is confined within a snap reel space defined by the radially outermost portion of the snap reel (also referred to as the outer edge portion of the snap reel). Preferably, the space is the snap wire winding space of the snap reel.

[0016] Alternatively or additionally, the clamping portion is configured to at least partially constrain the radial freedom of the free end of the snap wire. For example, in the case where the clamping portion is configured to only partially constrain the radial freedom of the free end portion of the snap wire, i.e., in the case where the free end portion may move radially within the radially outermost portion of the snap reel, once the free end moves to the radially outermost position allowed by the snap wire clamp, the corresponding portion of the free end portion engages with at least one flexible engagement element of the clamping portion. In other cases where the radial freedom of the free end portion is fully constrained, the corresponding portion of the free end portion is permanently engaged with the at least one flexible engagement element of the clamping portion. It should be understood that the same embodiment of the snap wire clamp may partially constrain the radial freedom in one case and fully constrain the radial freedom in another case. For example, before the snap wire clamp is removed from the snap reel, the at least one flexible engagement element is permanently engaged with the corresponding portion. The snap wire clamp is then removed and the snap wire is partially consumed, thereby placing the new free end portion in a position radially closer to the central axis of the snap reel. After reattaching the snap wire clamp to the snap reel, the length of the flexible engagement element may not be sufficient to permanently engage the new free end portion, but still ensure that the radial freedom of the new free end portion is restricted once it moves into engagement with the at least one flexible engagement element.

[0017] Preferably, the snap wire clamp is configured so that the at least one flexible engagement element can exert a radially inward force on a corresponding portion of the snap wire, thereby advantageously biasing the snap wire against the snap reel, thereby fully constraining the radial freedom of the snap wire.

[0018] Alternatively or additionally, the snap wire clamp is configured to constrain a free end portion of the snap wire in a circumferential direction.

[0019] Alternatively or additionally, the snap line comprises a wave pattern consisting of alternating crests and troughs, wherein the at least one engagement element is configured to engage with one or more troughs and / or one or more crests of the snap line. In other words, in such an embodiment, a corresponding portion of the free end portion of the snap line is realized by one or more troughs and / or one or more crests of the snap line.

[0020] Alternatively or additionally, the snap-on wire clamp also includes a base portion connecting the at least one attachment portion and the compression portion. Alternatively or additionally, the snap-on wire clamp is configured to be attached to the snap-on reel so that the base portion at least roughly extends along the axial direction of the snap-on reel. Alternatively or additionally, the base portion has a substantially longitudinal shape, preferably a rectangle. Alternatively or additionally, the longitudinal dimension or length of the base portion is more than 30 mm, more than 35 mm, more than 40 mm, more than 45 mm, more than 50 mm, more than 55 mm, more than 60 mm, or more than 65 mm. Alternatively or additionally, the width of the base portion is more than 5 mm, more than 6 mm, more than 7 mm, more than 8 mm, more than 9 mm, more than 10 mm, more than 11 mm, more than 12 mm, or more than 13 mm. However, it should be understood that in other embodiments, the at least one attachment portion is directly attached to the compression portion without the base portion for connecting the at least one attachment portion and the compression portion.

[0021] Alternatively or additionally, the snap wire clamp is configured to be attached to a snap reel such that the at least one flexible engagement element extends radially inwardly from the base portion relative to the snap reel.Alternatively or additionally, the clamping portion includes a first flexible engagement portion and a second flexible engagement portion.

[0022] In principle, it is sufficient for the snap-on wire clamp to have only one attachment portion, which is attached to a mating portion of the snap-on reel. This is conceivable, in particular, in cases where the axial distance between the side walls of the snap-on reel is small. In a preferred embodiment, the at least one attachment portion is arranged on the side of the snap-on wire clamp. In particular for snap-on reels with a large distance between the side walls in the axial direction, preferably the first attachment portion is arranged on a first side of the snap-on wire clamp and the second attachment portion is arranged on a second side of the snap-on wire clamp opposite to the first side. Alternatively or additionally, the snap-on wire clamp is configured to be attached to the snap-on reel such that the first side and the second side are aligned in the axial direction of the snap-on reel.

[0023] Alternatively or additionally, the snap wire clamp comprises a first attachment portion located at a first side portion and a hinge portion located at a second side portion. The hinge portion is configured to pivotally attach the snap wire clamp to the snap reel. Preferably, the first attachment portion can be separated from the first mating portion of the snap reel by pivoting the snap wire clamp around the hinge portion. In some embodiments, the hinge portion is configured to be removably attached to the second mating portion of the snap reel. Preferably, the hinge portion is configured to be able to move along the circumference of the snap reel when attached to the snap reel. In further preferred or additional embodiments, the hinge portion is permanently attached to the snap reel, for example when the snap wire clamp is an integral part of the snap reel. In other preferred embodiments, the first and / or second attachment portions are configured to act as hinge portions.

[0024] Alternatively or in addition, the base portion extends between the first attachment portion and the second attachment portion. Preferably, the base portion is configured to provide a bridging distance between the first attachment portion and the second attachment portion, for bridging the interval between the first mating portion and the second mating portion of the snap reel, thereby easily placing the attachment portion at the corresponding mating portion of the snap reel. Preferably, the base portion is configured to provide a variable bridging distance. This can be achieved, for example, by making the base portion of a softer material, whereby when the snap wire clamp is attached, the base portion (especially the base portion between the two attachment portions) can protrude or deform in other forms, thereby making it possible to easily attach the two attachment portions to the corresponding mating portions of the side walls according to the axial distance between the side walls. However, any other conceivable scheme for achieving a variable bridging distance is possible.

[0025] Alternatively or additionally, the base portion comprises at least a first flexible portion, a second flexible portion and at least one reinforcing portion disposed between the first flexible portion and the second flexible portion. In particular, when the snap-on wire clamp is attached to the reel, the flexible portion allows the base portion to deform in a direction parallel to the reel axis, thereby enabling the clamp to adapt to the axial distance between the side walls of the snap-on reel.

[0026] Alternatively or additionally, the at least one flexible engagement element extends laterally from the base portion. Alternatively or additionally, the at least one flexible engagement element extends non-coaxially with the longitudinal axis of the base portion. Alternatively or additionally, at least one extension of the longitudinal axis of the at least one flexible engagement element intersects with an extension of the longitudinal axis of the base portion.

[0027] Alternatively or additionally, the at least one flexible engagement element of the compression portion is configured to engage with a corresponding valley of the snap line.

[0028] Alternatively or additionally, the at least one flexible engagement element has a substantially longitudinal shape. Alternatively or additionally, the at least one flexible engagement element is a pin-shaped element. Alternatively or additionally, the at least one flexible engagement element is a sheet-like element, wherein the sheet-like element extends at least approximately in the longitudinal direction of the pressing portion. Of course, a plurality of sheet-like elements may also be provided that are adjacent to or spaced apart from each other.

[0029] Alternatively or additionally, the length of the flexible engagement element is greater than 20 mm, greater than 22 mm, greater than 24 mm, greater than 26 mm, greater than 28 mm, or greater than 30 mm. Alternatively or additionally, the width of the flexible engagement element is greater than 1 mm, greater than 1.2 mm, greater than 1.4 mm, greater than 1.6 mm, greater than 1.8 mm, greater than 2 mm, greater than 2.2 mm, or greater than 2.4 mm. Alternatively or additionally, the thickness of the flexible engagement element is greater than 0.3 mm, greater than 0.5 mm, greater than 0.7 mm, greater than 0.9 mm, greater than 1.1 mm, or greater than 1.3 mm.

[0030] Alternatively or additionally, the at least one flexible engagement element is substantially longitudinal in shape and comprises a fixed end and a free end opposite the fixed end. Preferably, the fixed end is attached to the base portion. Preferably, each of the at least one flexible engagement element is configured so that the free end is deflectable. More preferably, the at least one flexible engagement element is configured to be deflectable in a plane perpendicular to the axial direction of the snap reel. Alternatively or additionally, the at least one flexible engagement element is configured to be deflectable in a plane perpendicular to the direction defined between the first side and the second side of the snap wire clamp. Alternatively or additionally, the at least one flexible engagement element is configured to be deflectable in a plane perpendicular to the longitudinal axis of the base portion.

[0031] Alternatively or additionally, the at least one flexible engagement element has a variable length. Preferably, the at least one flexible engagement element is configured to be retractable. Alternatively or additionally, the free end of the at least one flexible engagement element comprises a soft tip. Preferably, the soft tip comprises a soft material. Alternatively or additionally, the soft tip comprises a soft material that is softer than the material of the rest of the flexible engagement element. Alternatively or additionally, the soft material comprises an elastomer. Alternatively or additionally, the soft material comprises foam. Preferably, the hardness of the soft material is less than 50%, less than 40%, less than 30%, less than 20%, less than 10%, less than 5%, less than 4%, less than 3%, less than 2%, or less than 1% compared to the hardness of the material of the rest of the flexible engagement element.

[0032] Alternatively or additionally, the snap-on wire clamp comprises a plurality of flexible engagement elements. Preferably, the flexible engagement elements are configured to have different lengths from each other. Alternatively or additionally, the plurality of flexible engagement elements are axially displaceable relative to each other.

[0033] In principle, the plurality of flexible engagement elements may be provided by the pressing portion in any desired manner or pattern. For example, the pressing portion may provide a plurality of flexible engagement elements arranged in the form of a brush and / or arranged in a completely random manner. Alternatively or additionally, the plurality of flexible engagement elements are arranged to form at least one row of flexible engagement elements. Preferably, two adjacent flexible engagement elements in the at least one row of flexible engagement elements are in contact with each other. Alternatively or additionally, two adjacent flexible engagement elements in the at least one row of flexible engagement elements are arranged in a gapless manner.

[0034] Alternatively or additionally, the plurality of flexible engagement elements are arranged in a comb-like pattern to form at least one row of flexible engagement elements. In this case, the comb-like pattern is defined by a series of longitudinal engagement elements separated by corresponding gaps. Preferably, the width of the gap is constant. Alternatively or additionally, the gap width is adapted to the width of the snap-on line fixed by the snap-on line clamp. Alternatively or additionally, the gap width is dimensionally identical to the width of the elongated flexible engagement element. Alternatively or additionally, the sum of the gap width and the width of the flexible engagement element is substantially equal to the width of the snap-on line fixed by the snap-on line clamp. In a further preferred or alternative embodiment, the width of the flexible engagement element is less than or greater than the gap width. Alternatively or additionally, the gap width is more than 1 mm, more than 1.2 mm, more than 1.4 mm, more than 1.6 mm, more than 1.8 mm, more than 2 mm, more than 2.2 mm, or more than 2.4 mm. Alternatively or additionally, the ratio of the width of the longitudinal element to the gap width is 0.5 or more, 0.6 or more, 0.7 or more, 0.8 or more, 0.9 or more, 1 or more, 1.1 or more, 1.2 or more, 1.3 or more, 1.4 or more, or 1.5 or more. It is particularly preferred that the flexible engagement elements of the at least one row of flexible engagement elements are pin-shaped elements.

[0035] Alternatively or additionally, the snap wire clamp is configured to be attached to the snap reel such that the at least one row of flexible engagement elements extends at least substantially in the circumferential direction of the snap reel. Preferably, the snap wire clamp is configured to be attached to the snap reel such that each of at least one flexible engagement element in the at least one row of flexible engagement elements extends along a direction having a component at least in the axial direction of the snap reel.

[0036] Alternatively or additionally, the snap wire clamp is configured to be attached to the snap reel such that each of at least one flexible engagement element in the at least one row of flexible engagement elements extends along a direction having a component at least in a radial direction of the snap reel.

[0037] Alternatively or additionally, the snap wire clamp is configured to be attached to the snap reel such that the at least one row of flexible engagement elements is aligned with a direction extending at least substantially in the axial direction of the snap reel. Preferably, the snap wire clamp is configured to be attached to the snap reel such that each of at least one flexible engagement element in the at least one row of flexible engagement elements extends along a direction having a component at least in the circumferential direction of the snap reel.

[0038] Alternatively or additionally, the flexible engagement elements of the at least one row of flexible engagement elements are arranged parallel to an orientation defined between the first side and the second side of the snap wire clamp. Alternatively or additionally, in particular in the case of a comb-like arrangement as described above, the comb-like pattern forms a first row of flexible engagement elements and a second row of flexible engagement elements. Preferably, the flexible engagement elements of the first row of flexible engagement elements and the flexible engagement elements of the second row of flexible engagement elements are arranged parallel to an orientation defined between the first side and the second side of the snap wire clamp.

[0039] Alternatively or additionally, at least one flexible engagement element in the at least one row of flexible engagement elements extends in a direction different from the direction in which the remaining flexible engagement elements in the at least one row of flexible engagement elements extend. Preferably each flexible engagement element in the at least one row of flexible engagement elements extends in a different direction.

[0040] Alternatively or additionally, the snap wire clamp comprises at least a first flexible engagement portion and a second flexible engagement portion, wherein each of the first and second flexible engagement portions comprises at least one flexible engagement element. Preferably, the first flexible engagement portion comprises a first row of flexible engagement elements and the second flexible engagement portion comprises a second row of flexible engagement elements. More preferably, the first and second rows of flexible engagement elements are arranged in a comb-like pattern.

[0041] Alternatively or additionally, the gaps between adjacent flexible engagement elements arranged in a comb-like pattern are filled with an elastic material. This can allow the clamping portion or the base portion to deform to adjust the distance that the snap wire clamp bridges between the side walls of the snap reel. Preferably, the elastic material is significantly softer than the material of the flexible engagement element. Alternatively or additionally, the elastic material comprises an elastomer. Alternatively or additionally, the elastic material comprises a foam. Preferably, the hardness of the elastic material is less than 50%, less than 40%, less than 30%, less than 20%, less than 10%, less than 5%, less than 4%, less than 3%, less than 2%, or less than 1% compared to the hardness of the material of the rest of the flexible engagement element.

[0042] Alternatively or additionally, the first flexible joint portion and the second flexible joint portion extend parallel to each other. Preferably, the distance between the parallel first flexible joint portion and the second flexible joint portion is 5 mm or more, 6 mm or more, 7 mm or more, 8 mm or more, 9 mm or more, 10 mm or more, 11 mm or more, 12 mm or more, or 13 mm or more.

[0043] Alternatively or additionally, the first flexible joint portion and the second flexible joint portion extend in different directions enclosing an angle of less than 120°. Preferably, the first flexible joint portion and the second flexible joint portion enclose an angle of more than 15° and / or less than 75°. More preferably, the first flexible joint portion and the second flexible joint portion enclose an angle of more than 35° and / or less than 65°. Alternatively or additionally, the distance between the base portion of the flexible joint element in the first flexible joint portion and the base portion of the flexible joint element in the second flexible joint portion is more than 5 mm, more than 6 mm, more than 7 mm, more than 8 mm, more than 9 mm, more than 10 mm, more than 11 mm, more than 12 mm, or more than 13 mm.

[0044] Alternatively or additionally, each of the at least one attachment portion provides a clamping section whose shape allows it to releasably engage with a corresponding mating portion of the snap reel by positive locking (also known as form closure) and / or force locking (also known as pull closure).

[0045] Alternatively or additionally, the clamping section comprises an inner clamping arm and an outer clamping arm. Preferably, one of the inner and outer arms is angled towards the other of the inner and outer arms. In a preferred embodiment, the clamping section may be provided with at least one spring element (e.g. in the form of a metal leaf spring) which may be machined into the material of the clamping section.

[0046] According to a second aspect of the present invention, there is provided a snap reel for storing a snap wire wound thereon, the snap reel being configured to be used with the snap wire clamp of the first aspect of the present invention. The snap reel comprises a hub defining a central axis, a first side wall and a second side wall. Each of the first and second side walls extends radially outward from the outer peripheral surface of the hub. The first side wall and the second side wall are spaced apart axially, thereby defining a snap wire winding space between them. The snap reel also comprises a first mating portion provided by the first side wall and a second mating portion provided by the second side wall, each mating portion being configured to removably attach an attachment portion of a corresponding shape of the snap wire clamp of the first aspect of the present invention to the snap reel. Each of the first mating portion and the second mating portion comprises a protrusion extending along the outer edge portion of the corresponding side wall. In addition, at least one (preferably each) of the first mating portion and the second mating portion comprises a locking groove extending circumferentially arranged in the corresponding side wall.

[0047] In a preferred embodiment of the second aspect of the invention, the circumferentially extending locking groove is arranged in a single segment extending continuously in the circumferential direction. In other preferred embodiments, the circumferentially extending locking groove is arranged in a single segment extending only partially in the circumferential direction. In other preferred embodiments, the circumferentially extending locking groove is discontinuous and comprises a plurality of subsequently arranged circumferentially extending segments.

[0048] Alternatively or additionally, the circumferentially extending locking groove of the first mating portion and / or the second mating portion is arranged radially inwardly from the corresponding projection and preferably immediately adjacent to the corresponding projection.

[0049] As an alternative or in addition to the locking groove extending in the circumferential direction, the snap-on reel further includes a snap-on wire clamp holder separated from the first mating portion and the second mating portion. The snap-on wire clamp holder is configured to releasably attach the snap-on wire clamp to the snap-on reel in a position allowing the snap-on wire to be released. When the snap-on reel is used in a snap-on sealing machine, the snap-on wire clamp holder can be used to store the snap-on wire clamp on the snap-on reel.

[0050] As an alternative or in addition to the circumferentially extending locking groove, the snap reel further comprises at least one storage recess arranged in at least one of the first and second side walls, preferably at least one storage recess is provided in each of the first and second side walls and / or a plurality of storage recesses are arranged circumferentially spaced around at least one of the first and second side walls. The at least one storage recess is configured to at least partially receive a snap wire clamp (preferably a snap wire clamp as described in the first aspect), which is attached to at least one of the first or second mating parts in a release position, in which the free end of the snap wire wound on the snap reel is not fixed. In a particularly preferred embodiment, the storage recess is also configured to enable the snap wire clamp to pivot from the release position to a fixed position, in which the free end of the snap wire is fixed to the snap reel.

[0051] In a third aspect of the present invention, a snap reel assembly is provided, the snap reel assembly comprising a snap reel (preferably the snap reel of the second aspect of the present invention), a snap wire wound on the snap reel so as to be placed in a snap wire winding space of the snap reel, and a snap wire clamp of the first aspect of the present invention removably attached to the snap reel. The snap reel comprises at least a hub defining a central axis, a first side wall and a second side wall. Each of the first and second side walls extends radially outward from the outer peripheral surface of the hub. The first side wall and the second side wall are spaced apart axially so as to define a snap wire winding space therebetween.

[0052] Alternatively or additionally, at least one attachment portion of the snap wire clamp is removably attached to a corresponding mating portion of the snap reel. Preferably, the compression portion of the snap wire clamp engages with at least one corresponding portion of the snap wire, thereby at least preventing the snap wire from being separated radially from the snap reel.

[0053] In a fourth aspect of the present invention, there is provided a snap reel assembly, the snap reel assembly comprising the snap reel of the second aspect of the present invention, a snap wire wound on the snap reel so as to be placed in a snap wire winding space of the snap reel, and a snap wire clamp of the first aspect of the present invention. The snap wire clamp is releasably attached to a snap wire clamp holder of the snap reel, thereby allowing the snap wire to be released from the snap reel.

[0054] The preferred embodiments of the present invention will be described below with reference to the following drawings. Further advantages, embodiments and embodiments of the first, second, third and fourth aspects of the present invention will be described in detail therein. The following description and drawings are provided to explain in detail the previous description of the first, second, third and fourth aspects of the present invention. It should be understood that any of the various features described below and / or shown in the drawings may be combined with the corresponding features of any embodiment of the first, second, third or fourth aspects described above, or replace the corresponding features. In addition, it should be understood that the statement of a specific feature in the independent claim and / or the description of any one of the first, second, third or fourth aspects of the present invention is not sufficient to indicate that the feature is a necessary feature.

[0055] Unless otherwise indicated, expressions such as "up", "down", "above", "below", "above", "below" or similar expressions for relative spatial positions along a vertical axis are defined relative to the viewing angle of an observer with respect to the accompanying drawings. Unless otherwise indicated, the viewing angle of an observer with respect to the accompanying drawings is as follows: the "up" and "down" directions coincide with the natural up-down directions, i.e. the "down" direction corresponds to the direction of gravity. Therefore, unless otherwise indicated, "down", "below", "below" or similar expressions relate to relative positions along the direction of gravity, while "up", "above", "above" or similar expressions relate to relative positions opposite to the direction of gravity.

[0056] Unless otherwise indicated, expressions such as "front", "back", "left" and "right" or similar expressions regarding the spatial position relative to the observer are defined relative to the observer's perspective of the drawing, where "front" or similar expressions relate to a relative position closer to the observer and "back" or similar expressions relate to a relative position farther away from the observer. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In the attached picture:

[0058] Figure 1 is a perspective view of the snap wire clamp of the present invention;

[0059] Figure 2a yes Figure 1 Full front view of the snap wire clamp shown;

[0060] Figure 2b yes Figure 1 A side view of the snap wire clamp shown;

[0061] Figure 2c yes Figure 1 A top view of the snap wire clamp shown;

[0062] Figure 2d yes Figure 1 A bottom view of the snap wire clamp shown;

[0063] Figure 3 It is along Figure 2c An enlarged detail view of a cross section obtained by cutting the snap-on wire fixture along line AA shown in FIG.

[0064] Figure 4 is a perspective view of another embodiment of the snap wire clamp of the present invention;

[0065] Figure 5a yes Figure 4 A top view of the snap wire clamp shown;

[0066] Figure 5b yes Figure 4 A side view of the snap wire clamp shown;

[0067] Figure 6 is a perspective view of the snap reel of the present invention;

[0068] Figure 7a yes Figure 6 A cross-sectional view of a snap reel;

[0069] Figure 7b yes Figure 7a enlarged detail of a cross section;

[0070] Figure 7c It is another embodiment of the snap reel of the present invention similar to Figure 7b Detailed enlarged view of

[0071] Figure 8 is a perspective view of one embodiment of a snap-on wire clamp of the present invention attached to one embodiment of a snap-on reel of the present invention;

[0072] Figure 9a-9c are different views of the snap reel assembly of the present invention;

[0073] Figure 10a-10c are different views of another embodiment of the snap-on reel assembly of the present invention;

[0074] Fig.11 is a front view of another embodiment of the snap wire clamp of the present invention;

[0075] Fig.12 is a perspective view of another embodiment of the snap wire clamp of the present invention;

[0076] Fig.13a is a side view of another embodiment of the snap wire clamp of the present invention;

[0077] Fig.13b yes Fig.13a A front view of an embodiment of the present invention;

[0078] Fig.14 is a top view of another embodiment of the snap-on reel assembly of the present invention, the snap-on reel assembly comprising Fig.13a , 13b The snap-on wire clamp and snap-on reel;

[0079] Fig.15a is a perspective view of the snap reel assembly of the present invention with the snap wire clamp attached to the snap reel in a released position;

[0080] Fig.15b yes Fig.15a A perspective view of a snap reel assembly of wherein the snap wire clamp is attached to the snap reel in a fixed position;

[0081] Fig.16 is a perspective view of another embodiment of the snap wire clamp of the present invention attached to a snap reel;

[0082] Fig.17 is a top view of another embodiment of the snap wire clamp of the present invention;

[0083] Fig.18a is a perspective view of another embodiment of the snap wire clamp of the present invention;

[0084] Fig.18b is a perspective view of another embodiment of the snap wire clamp of the present invention;

[0085] Fig.19a is a perspective view of another embodiment of the snap wire clamp of the present invention attached to a snap reel; and

[0086] Fig.19b is a perspective view of another embodiment of the snap wire clamp of the present invention attached to a snap reel. DETAILED DESCRIPTION

[0087] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the additional and / or alternative advantages, embodiments and examples disclosed below are not limited to a certain combination of features described below and / or shown in the accompanying drawings. On the contrary, these additional and / or alternative advantages, embodiments and examples are applicable to the corresponding features of any or all of the general aspects and embodiments of the first, second, third and fourth aspects of the present invention described above, can be combined with these features and / or can replace these features.

[0088] Figure 1A perspective view of a snap wire clamp 10 is shown, which includes a first attachment portion 12 disposed on a first side 13 of the snap wire clamp 10, and a second attachment portion 14 disposed on a second side 15 of the snap wire clamp 10 opposite the first side 13. The snap wire clamp 10 also includes a clamping portion 16 disposed between the first and second attachment portions 12, 14. The first and second attachment portions 12, 14 and the clamping portion 16 are connected by a base portion 18.

[0089] The snap-on wire clamp 10 can be made of any material. It is particularly preferred that the clamp 10 is made of plastic, preferably thermoplastic. However, the clamp 10 can also be made of a composite material, that is, a material consisting of different plastics or plastics combined with other materials (such as metal, etc.).

[0090] Figure 2a A front view of the snap-on wire clamp 10 is provided, Figure 2b A side view of the snap wire clamp 10 is provided, Figure 2c A top view of the snap-on wire clamp 10 is provided. Figure 2d A bottom view of the snap wire clamp 10 is provided. Figures 6 to 10c As shown in more detail in the embodiment of the snap reel CR shown, each of the first and second attachment portions 12, 14 is shaped so as to removably attach the snap wire clamp 10 to a Figures 6 to 10c The shape of the pressing portion 16 enables it to engage with the snap wire wound on the snap reel, which will be combined with the Figures 9a to 10c The embodiment of the snap line CL shown explains this in detail.

[0091] The clamping portion 16 includes a first flexible engagement portion 20a and a second flexible engagement portion 20b, each of which extends from a bottom surface 21 of the base portion 18 in a direction away from the base portion 18. In the illustrated embodiment, the base portion 18 is formed as a substantially strip-shaped member 19 having a cross-sectional dimension much smaller than a longitudinal dimension, the longitudinal dimension of the base portion 18 extending between the first side portion 13 and the second side portion 15. As further described below, the base portion 18 serves as a bridging member configured to provide a bridging distance D defined between the first attachment portion 12 and the second attachment portion 14 for bridging the gap between the first and second mating portions of the snap reel. In the undeflected state of the snap wire clamp 10, for example Figures 1 to 2d As shown, the bridging distance D corresponds to the longitudinal dimension L of the base member 18 .

[0092] Each of the first flexible joint portion 20a and the second flexible joint portion 20b includes a plurality of elongated flexible joint elements 30. Each flexible joint element 30 includes a fixed end 31 attached to the bottom surface 21 of the base portion 18 and a free end 33 opposite the first end 31. In addition, each flexible joint element 30 is configured so that the free end 33 is deflectable. In particular, as Figure 2d As shown, each flexible engagement element 30 includes a cross-section having a major dimension or width w and a minor dimension or thickness t. Therefore, the bending stiffness of each flexible engagement element 30 in a direction perpendicular to its width w is less than the bending stiffness in a direction perpendicular to its thickness t. Therefore, when subjected to external forces and / or bending moments, the flexible engagement element 30 is more likely to bend in a direction perpendicular to its width w. In other words, the free end 33 of the flexible engagement element 30 is more likely to deflect in a direction perpendicular to its width w.

[0093] The plurality of flexible engagement elements 30 of each of the first flexible engagement portion 20a and the second flexible engagement portion 20b form two parallel rows 32a, 32b of flexible engagement elements 30. In particular, the flexible engagement elements 30 of the first flexible engagement portion 20a form a first row 32a, and the flexible engagement elements 30 of the second flexible engagement portion 20b form a second row 32b. The two rows 32a, 32b are respectively aligned with the longitudinal dimension L of the base portion 18 and are separated from each other by a distance K, for example, see Figure 2b In a particularly preferred embodiment, the distance K between the two parallel-running rows 32 a , 32 b is adapted to the distance between two wave valleys of a snap-wire fixed by the snap-wire clamp 10 .

[0094] Each row 32a, 32b of the illustrated embodiment forms a comb-like pattern, wherein along the orientation R of each row 32, 32b, adjacent elongated flexible engagement elements 30 of each row are separated by a respective gap width g (see Figure 2a ). In a particularly preferred embodiment, the gap width g is constant in each row 32a, 32b, more preferably the gap width g is constant in both rows 32a, 32b. Alternatively or additionally, the gap width g is adapted to the width of the snap wire secured by the snap wire clamp 10. Alternatively or additionally, the gap width g and the width w of the elongated flexible engagement element 30 are identical in size. Alternatively or additionally, the sum of the gap width g and the width w is substantially equal to the width of the snap wire secured by the snap wire clamp 10. In a further preferred or alternative embodiment, the width w is less than or greater than the gap width g.

[0095] In the illustrated embodiment, most of the flexible engagement elements 30 are arranged so that the width w of their cross-sections is aligned with the longitudinal dimension L of the base member 18. Each of the first flexible engagement portion 20a and the second flexible engagement portion 20b includes a first subset 35 of flexible engagement elements 30 and a second subset 37 of flexible engagement elements 30. The first subset 35 corresponds to a subset of the flexible engagement elements 30 of each flexible engagement portion 20a, 20b located at or near the first side 13, and similarly, the second subset 37 corresponds to a subset of the flexible engagement elements 30 of each flexible engagement portion 20a, 20b located at or near the second side 15. Figure 2d Taking the representative flexible engagement elements 30 of the second subset 37 of the first flexible engagement portion 20a as an example, the flexible engagement elements 30 of the second subset 37 are rotated compared to the majority of the flexible engagement elements 30 so that their width w is inclined at an angle 39 relative to the longitudinal dimension L of the base member 18. Preferably, the angle 39 is greater than 15°, greater than 20°, greater than 25°, greater than 30°, greater than 35°, or greater than 40°.

[0096] In the embodiment shown, the rotation of the first and second subsets 35, 37 follows the symmetry of the base portion 18, which will be exemplarily described below with reference to the outer surface 41 of the elongated flexible engagement element. The outer surface 41 of the elongated flexible engagement element 30 corresponds to the surface defined by the length l and the width w of the corresponding elongated flexible engagement element 30 of the first or second flexible engagement portion 20a, 20b, which faces away from the corresponding other of the first or second flexible engagement portion 20a, 20b. The rotation of the elongated flexible engagement elements 30 in the first and second subsets 35, 37 causes their outer surfaces 41 to face the corresponding first and second side portions 13, 15.

[0097] The first and second subsets 35, 37 of the illustrated embodiment each include two rotational elongated flexible engagement elements 30. In alternative embodiments, each subset includes at least one, at least two, at least three, at least four and / or more rotational elongated flexible engagement elements 30.

[0098] For example, Figure 2cAs shown, the base portion 18 includes a first flexible portion 40, a second flexible portion 42, and a reinforcing portion 44 disposed between the first flexible portion 40 and the second flexible portion 42. In this embodiment, the first flexible portion 40 and the second flexible portion 42 are respectively realized by a first recess 46 in the base member 18 and a second recess 48 in the base member 18. The recesses 46, 48 extend continuously along a portion of the longitudinal dimension L of the base member 18 and effectively separate the strip-like member 19 forming the base portion 18 into two parallel sub-strips 19a, 19b. In the direction of the longitudinal dimension L, the recesses 46, 48 are separated by a connecting portion 50 connecting the sub-strips 19a, 19b, thereby forming the reinforcing portion 44. The first flexible portion 40 and / or the second flexible portion 42 can also be made of a material that is more elastic than the reinforcing portion 44. The different elasticity of the first flexible portion 40 and / or the second flexible portion 42 compared to the reinforcing portion 44 may allow the snap-on wire clamp 10 to deform longitudinally, for example, allowing the clamp 10 to deform to compensate for different distances between the side walls of the snap-on reel and / or to obtain elastic force to assist in the attachment of the attachment portions 12, 14.

[0099] Figure 3 It is along Figure 2c A detailed view of the clamping section 29 provided by the second attachment part 14 in a cross section obtained by cutting the snap-on wire clamp 10 along line AA is shown. The first attachment part 12 can have a clamping section 29 of the same configuration. However, the clamping section of the first attachment part 12 can also be designed differently. In other words, the present invention allows the clamping section of the first or second attachment part 12, 14 to have different structures.

[0100] The clamping segment 29 is configured to releasably engage with a corresponding mating portion of the snap reel by form closure or positive locking and / or pull closure or force locking, respectively. The clamping segment 29 of the second attachment portion 14 is described below. However, it should be understood that the first attachment portion 12 includes a corresponding clamping segment 29, as described above and clearly shown in the accompanying drawings. In the illustrated embodiment, the clamping segment 29 includes an inner clamping arm 34 and an outer clamping arm 36, both of which extend from the lower portion of the side portion 15. The inner clamping arm 34 and the outer clamping arm 36 enclose a receiving space 37. The inner clamping arm 34, the outer clamping arm 36 and the receiving space 37 are together formed to engage with a correspondingly shaped mating portion of the snap reel (this will be described below in conjunction with the description of the invention). Figures 6 to 10c The snap reel CR shown is described in more detail to releasably attach the snap wire clamp 10 to the snap reel.

[0101] In the illustrated embodiment, the inner clamping arms 34 (i.e., the clamping arms located adjacent the two outermost flexible engagement elements 30 of the subset 37 of the respective first and second flexible engagement portions 20a, 20b) extend substantially straight and perpendicular to the lower surface 21 of the base portion 18 and parallel to the flexible engagement elements 30. The outer clamping arms 36 also extend in a direction away from the lower surface 21, but are bent or angled toward the inner arms 34.

[0102] Figure 4 Shown with Figures 1 to 3 The snap wire clamp 10 is another embodiment similar to the snap wire clamp 10 ′. Figure 5a A top view of the snap-on wire clamp 10 ′ is provided. Figure 5b A corresponding side view of a snap-on wire clamp 10' is provided. The difference between the snap-on wire clamp 10 and the embodiment of the snap-on wire clamp 10' is that the first flexible engagement portion 20a' and the second flexible engagement portion 20b' extend from the lower surface 21 of the base member 18 in different directions, i.e., not parallel. Figure 5b As shown, the first flexible joint portion 20a' and the second flexible joint portion 20b' extend away from the lower surface 21 and away from each other, thereby forming an angle α between them. Figures 4 to 5b It can be clearly seen that the remaining features of the snap-on wire clamp 10' are the same as those of the snap-on wire clamp 10. Therefore, reference may be made to the previous sections related to the snap-on wire clamp 10, and a detailed description of the snap-on wire clamp 10' is omitted.

[0103] Now go to Figures 6 to 7c , a snap-on reel CR will be described. The illustrated embodiment of the snap-on reel CR is similar in many respects to snap-on reels known in the art, such as the snap-on reel described above with reference to EP 1 567 418 A1. Thus, the snap-on reel CR comprises a hub defining a central axis A, a first side wall 106 extending radially outwardly from an outer peripheral surface 110 of the hub 103, and a corresponding second side wall 108 extending radially outwardly from the outer peripheral surface 110 of the hub 103. The first side wall 106 and the second side wall 108 are axially spaced apart by a spacing S, thereby defining a snap-on wire winding space 112 in a volume enclosed by the first side wall 106 and the second side wall 108. In other words, the snap-on wire space 112 forms an annular channel extending circumferentially around the outer peripheral surface 110. Figure 7a It is in the plane passing through the central axis A. Figure 6 Cross-sectional view of the snap reel CR.

[0104] The first side wall 106 provides the first mating portion 102 and the second side wall 108 provides the second mating portion 104. Each of the mating portions 102, 104 is shaped to engage with a correspondingly shaped attachment portion 12, 14 of the snap wire clamp 10, 10' to releasably attach the snap wire clamp 10, 10' to the snap reel CR.

[0105] The engagement between the attachment portions 12, 14 and the mating portions 102, 104 is particularly Figure 8 , which shows the components of the snap wire clamp 10 attached to the snap reel CR.

[0106] Figure 7b A cross-sectional detail view of the second mating portion 104 is provided to exemplarily illustrate the design of the first mating portion 102 and the second mating portion 104. The mating portions 102, 104 include respective projections 114, 116, respectively, extending around respective outer edge portions 118, 120 of the first side wall 106 and the second side wall 108. The projections 114, 116 are defined by circumferentially extending portions on the respective outer edges 118, 120, forming an annular protrusion extending outwardly from the outer surfaces 124, 126 of the respective first and second side walls 106, 108 parallel to the axial direction A.

[0107] Each of the first and second mating portions 102, 104 further includes a corresponding circumferentially extending locking groove 122, 123 disposed in the corresponding first and second side walls 106, 108. In the illustrated embodiment, each locking groove 122, 123 is formed by an annular recess in the corresponding outer surface 124, 126 of the corresponding first and second side walls 106, 108. The shape of the protrusions 114, 116 corresponds to the receiving space 37 of the clamping section 29 of the snap-on wire clamp 10, 10'. The clamping section 29 thereby achieves a shape closure when engaging with the corresponding protrusion 106, 108, thereby securing the snap-on wire clamp 10, 10' to the snap-on reel CR, in particular as Figure 8 As shown. Each outer arm 36 of the clamping section 29 extends into and / or contacts the surface of the locking groove 124, thereby further strengthening the form closure and preventing the snap wire clamp 10 from accidentally separating from the snap reel CR. Alternatively or additionally, the outer clamping arm 36 may have sufficient flexibility to press against the corresponding side walls 106, 108 when engaging with the locking grooves 122, 123, thereby achieving a pull closure.

[0108] Another embodiment of the snap-on reel CR includes first and second mating portions 102', 104', such as Figure 7c The second mating portion 104' is shown in FIG. Figure 7bThe mating portion 104 of the embodiment of FIG. 1 is different in that a locking groove 123 ′ is provided in the protrusion 116 ′.

[0109] In addition, the snap reel CR includes a pair of snap wire clamp holders 130, preferably a respective holder 130 is provided in each of the first and second side walls 106, 108. The holder 130 is configured to releasably attach the snap wire clamp 10, 10' to the snap reel CR at a location on the outer surfaces 124, 126. Thus, the attachment location allows the snap wire stored on the snap reel CR to be released while allowing the snap wire clamp 10, 10' attached to the snap reel CR to be stored. A particular advantage of this configuration is that the snap wire clamp 10, 10' and the snap reel CR can remain physically connected even during operation of a snap sealer supplied by the snap reel CR, thereby potentially reducing the risk of the snap wire clamp 10, 10' being lost or misplaced.

[0110] The invention is particularly advantageous in that it allows the snap-on wire clamp 10, 10' to be attached to the corresponding mating portion 102, 102', 104, 104' of the snap-on reel CR at any position along its circumference. In other words, the attachment position of the snap-on wire clamp 10, 10' is freely selectable. In particular, the attachment position does not depend on the specific configuration of the snap-on wire on the snap-on reel CR, which will be described below in conjunction with Figures 9a to 10c Further details are given.

[0111] Figures 9a to 9c A plurality of views of an assembly of a snap reel CR and a snap wire clamp 10 are provided, wherein a snap wire CL stored within a snap wire winding space 112 of the snap reel CR is engaged and secured therein by the snap wire clamp 10. The snap wire CL is formed of a metal wire and includes a wave pattern consisting of alternating crests 202 and troughs 204 and forms a plurality of coils 206 arranged within the snap wire winding space 112.

[0112] from Figures 9a to 9c It is apparent that a number of advantages of the present invention are present. The flexible engagement element 30 of the snap wire clamp 10 extends from the base portion 16 into the snap wire winding space 112, with the free end 33 extending into the corresponding trough 204 of the snap wire CL. By engaging the snap wire CL in this manner, the snap wire clamp 10 secures the snap wire CL from radial separation from the snap wire reel CR, and in particular from radial protrusion from the snap wire winding space 112.

[0113] As clearly shown in the figure, the flexibility of the engagement element 30 ensures that the free end 33 of each flexible engagement element 30 extends into the corresponding trough 204 of the corresponding coil 206 of the snap wire CL, in particular, without requiring precise alignment of the snap wire clamp 10 and the trough 204. When the snap wire clamp 10 is attached to the snap reel CR, each free end 33, if not initially aligned with the corresponding trough 204, is guided into the corresponding trough 204 by engaging with a portion of the crest 202, causing the corresponding flexible engagement element 30 to deflect upon further advancement until the snap wire clamp 10 is fully attached to the snap reel CR. In addition, as described above, the flexibility also helps to ensure that each trough 204 can be engaged by the free end 33 even if each coil 206 is located at a different height within the snap wire winding space 112 (i.e., at a different radial distance from the central axis A). This may be particularly advantageous when reattaching the snap wire clamp 10, 10' to the snap wire reel CR to secure a snap wire CL that has been partially consumed.

[0114] like Figures 9a to 10c As shown, adapting the width w of the engagement elements 30 and the gap width g to the width of the snap line CL ensures that most or all of the coils 206 are contacted by the corresponding engagement elements 30, in particular independently of the specific design of the snap line CL. The design of the snap line clamp 10 shown, which includes two rows 32a, 32b of flexible engagement elements 30, advantageously enables each coil 206 to engage with two corresponding engagement elements 30, preferably two consecutive troughs 204 of the corresponding coil 206. Thus, each coil 206 is secured against circumferential back and forth movement. It is particularly advantageous to adapt the spacing K between the first row 32a and the second row 32b to the distance between two consecutive troughs 204 of the snap line CL secured by the snap line clamp 10.

[0115] also, Figures 9a to 10c The benefits of the base portion 18 including the flexible portions 40, 42 are demonstrated. Figure 9a As shown, the spacing S between the first and second side walls 106, 108 is less than the longitudinal length L of the base portion 18. However, as described above, the flexibility of the base portion 18 enables it to be bent as shown, so that the snap wire clamp 10 can be attached to the snap reel CR even if the longitudinal length L is greater than the spacing S. In other words, the bending of the base portion 18 brings the attachment portions 12, 14 closer to each other, thereby sufficiently reducing the bridging distance D, thereby bridging the spacing S. The connecting portion 50 ensures that the sub-strips 19a, 19b do not bend and / or flex significantly in the transverse and / or circumferential directions, thereby maintaining the spacing K between the first row 32a and the second row 32b.

[0116] As described above, the flexible engagement elements 30 of the subsets 35, 37 are angled relative to the majority of the flexible engagement elements 30 so that their respective free ends 33 can deflect with a component directed toward or away from the respective adjacent side walls 106, 108, thereby compensating for the reduced distance between the first and second attachment portions 12, 14. This compensation is particularly advantageous in helping to ensure that the coils 206 near the side walls 106, 108 are engaged by the respective flexible engagement elements 30 even when the base portion 18 is in a bent state when attached to a snap reel CR having a spacing S that is less than the longitudinal length L of the base portion 18.

[0117] Figures 10a to 10c Shown with Figures 9a to 9c An assembly similar to that of the present invention, in which a snap wire clamp 10' is used to secure a snap wire CL to a snap reel CR, the benefits of the angled flexible engagement portions 20a', 20b' are exemplarily shown. The angle α between the portions 20a', 20b' helps to ensure that each coil 206 is engaged by two corresponding engagement elements 30 at different troughs 206. In addition, as described above, this design can reduce the total stress at the base portion 31' of the engagement element 30' in the bent state, which is achieved in particular by producing a smaller final curvature than the parallel design of the snap wire clamp 10.

[0118] Fig.11 Provides Figures 1 to 10c A front view of a snap wire clamp 10" similar to the snap wire clamps 10, 10' shown. A particular difference between the aforementioned embodiments and the snap wire clamp 10" is that the snap wire clamp 10" only includes a first attachment portion 12" located at a first side 13" of the snap wire clamp 10". No other attachment portion is provided at the second side 15" of the snap wire clamp 10". The first attachment portion 12" is configured to provide sufficient clamping force to attach the snap wire clamp 10" to a mating portion of the snap reel, such as a selected one of the mating portions 102, 104 or the mating portions 102', 104'. The clamping force can be selected so that the snap wire clamp 10" can be attached to and removed from the snap reel CR, but will not rotate due to the force applied to the clamp 10" by the end of the snap wire CL. The snap-on wire clamp 10 ″ may include any or all of the features described herein in conjunction with other embodiments of the snap-on wire clamp of the first aspect, in particular in conjunction with the second attachment portion. Figures 1 to 10c Any or all features described and / or shown.

[0119] Fig.12 is with Figures 1 to 11A perspective view of a snap wire clamp 10'" similar to the snap wire clamps 10, 10', 10" shown. A particular difference between the aforementioned embodiments and the snap wire clamp 10'" is that the snap wire clamp 10'" includes a first and a second flexible engaging portion 20a'"', 20b'" without a gap. In the preferred embodiment shown, each of the first and second flexible engaging portions 20a'"', 20b'"' includes a single sheet-like flexible engaging element 30'"', i.e., its width w'"' and length l'"' are similar in size and much larger than its thickness t'". In the embodiment shown, the sheet-like flexible engaging elements 30'"' are arranged so that the width w'"' of each sheet-like flexible engaging element 30'"' extends parallel to the length L'"' of the base portion 18'"'.

[0120] Similar to the snap-on wire clamp 10', the sheet-like flexible engagement elements 30'' of the illustrated embodiment of the snap-on wire clamp 10'' extend from the base portion 18'' and away from each other, thereby enclosing an angle α'' therebetween. However, it should be understood that, similar to the snap-on wire clamp 10, the sheet-like flexible engagement elements 30'' may also extend parallel to each other. In addition to the first and second flexible engagement portions 20a'', 20b'' without a gap, the snap-on wire clamp 10'' may include any or all of the features described herein in conjunction with the other embodiments of the snap-on wire clamp of the first aspect, in particular in conjunction with Figures 1 to 11 Any or all features described and / or shown.

[0121] In an alternative embodiment of the snap-on wire clamp 10'", each of the gapless first and second flexible engaging portions 20a'", 20b'" includes a plurality of flexible engaging elements 30'", which are arranged so that adjacent flexible engaging elements 30'" are in contact with each other. It is particularly preferred that the gapless first and second flexible engaging portions 20a'", 20b'" are respectively formed in the form of a paint brush, that is, include a plurality of densely arranged hair-like flexible engaging elements 30'".

[0122] Figures 13a to 14 Shown with Figures 1 to 12 A particular difference between the aforementioned embodiments and the snap-on wire clamp 10"" is that the clamping portion 16"" is configured to extend from the side wall of the snap-on reel into the snap-on wire winding space of the snap-on reel. In a particularly preferred embodiment, the clamping portion 16"" is configured to extend along a direction at least substantially perpendicular to the snap-on reel (e.g., as shown in FIG. Fig.14In the embodiment shown, the snap-on wire clamp 10"" includes a fan-shaped engagement portion 20"" having a plurality of flexible engagement elements 30"" at least substantially similar, preferably substantially equal, in length l"". Each flexible engagement element 30"" is configured to extend perpendicular to the snap-on reel (preferably as shown in FIG. Fig.14 The circumference of the snap reel CR) shown in FIG. 1 extends in a direction away from the base portion 18″″. The snap wire clamp 10″″ is configured to be attached to a snap reel, such as a Fig.14 The snap reel CR shown. In particular, the base portion 18"" is curved to substantially follow the curvature of a portion of the outer edge portions 118, 120 of the snap reel (e.g., the outer edge portions 118, 120 of the snap reel CR). The base portion 18"" includes an attachment portion 12"" extending between the first and second sides 13"" and 15"" of the snap wire clamp 10"" for attaching the snap wire clamp 10"" to a mating portion of the snap reel, such as any one of the first and second mating portions 102, 104 of the snap reel CR in the manner described above.

[0123] In the embodiment shown, the engagement portion 20"" has its characteristic fan-shaped structure due to the arrangement of the flexible engagement elements 30"". Fig.13a As shown, when viewed from the side, multiple flexible engagement elements 30"" extend from the base portion 18"" at different angles perpendicular to the longitudinal axis of the base portion 18"". In particular, in the case of Fig.13a As shown, when viewed from the side, the plurality of flexible joint elements 30"" enclose a fan angle β between the uppermost or radially outermost flexible joint element 30a"" and the lowermost or radially innermost flexible joint element 30b"". Fig.13a In the viewing plane of , the angular spacing μ between adjacent flexible engagement elements 30″″ is preferably constant throughout the entire sector-shaped engagement portion 20″″. Alternatively, the angular spacing μ between adjacent flexible engagement elements 30″″ varies between different sector-shaped engagement portions 20″″. Fig.14 The advantages of the sector-shaped engagement portion 20" are shown. A plurality of flexible engagement elements 30" extend into the snap wire winding space so that their free ends are at different axial distances from the side walls 106, 108 and at different radial distances from the outer circumferential surface 110 of the hub 103. Thus, a wide range of possible positions of the free ends of the snap wires are covered by the respective free ends of the flexible engagement elements 30", thereby advantageously reducing the time required to find the appropriate position to engage and thereby secure the snap wires.

[0124] In addition to including at least the fan-shaped engagement portion 20", the snap-on wire clamp 10"" may include any or all of the features described herein in conjunction with other embodiments of the snap-on wire clamp of the first aspect, in particular in conjunction with Figures 1 to 12 Any or all features described and / or shown.

[0125] Fig.15a and 15b Shows Figures 1 to 3 A particularly advantageous application of the snap-on wire clamp 10 is wherein the first attachment portion 12 doubles as a hinge portion configured to pivotally attach the snap-on wire clamp 10 to a particularly preferred embodiment of the snap-on reel CR''. Fig.15a In the embodiment, the snap wire clamp 10 is attached to the first mating portion 102 of the snap wire reel CR"' in a release position, in which the free end of the snap wire (not shown) is not fixed, thus allowing the snap wire to be released from the snap wire reel CR"'. In order to fix the snap wire, the snap wire clamp 10 is pivoted about the first attachment portion 12 to Fig.15b The illustrated secured position wherein the second attachment portion 14 is attached to the second mating portion 104. Pivoting the snap wire clamp 10 about the first attachment portion 12 allows the snap wire clamp 10 to be moved between the released position and the secured position. It should be appreciated that the inherent symmetry of the illustrated embodiment also allows the snap wire clamp 10 to pivot about the second attachment portion 14, which may also double as a hinge portion.

[0126] Fig.15a and 15b The illustrated snap reel CR''' is generally similar to the snap reels CR, CR' described previously, but further includes a first storage recess 132 disposed in the first side wall 106 radially inward from and adjacent to the first protrusion 114 and a second storage recess 134 disposed in the second side wall 108 radially inward from and adjacent to the second protrusion 116. The storage recesses 132, 134 are configured to at least partially accommodate the snap wire clamp 10 in the release position, as shown. Fig.15b As shown, in the release position, a portion of the snap wire clamp 10 (in particular, a portion of the base portion 18) is recessed in the storage recess 132. The provision of the storage recesses 132, 134 advantageously increases the pivot angle between the release position and the fixed position. In particular, in the embodiment shown, the release position is a position in which the flexible engagement element 30 extends substantially axially outward from the outer surface 126 of the first side wall 106. Similar to the retaining frame 130, the storage recesses 132, 134 reduce the risk of interference with other machine components when the snap wire clamp 10 is kept physically connected to the snap reel CR"' in the release position during operation of the snap sealing machine.

[0127] However, it should be understood that the presence of the recesses 132, 134 is not necessary for pivoting the snap wire clamp 10 to the release position. For example, the embodiments of the snap reels CR, CR" discussed above also allow the snap wire clamp to be pivoted to the release position. If it is desired to achieve the same rotation range with such snap reels CR, CR", then other embodiments of the snap wire clamp 10 include dedicated hinge portions that are readily available from the prior art and are configured to provide a sufficient rotation range. These hinge portions can be used in addition to or as a substitute for the first and / or second attachment portions 12, 14.

[0128] Fig.16 An embodiment of a snap wire clamp 210 having an arched flexible engagement element 230 while being attached to the aforementioned snap reel CR is shown. The snap wire clamp 210 includes a first attachment portion 212, a second attachment portion 214, a clamping portion 216, and a base portion 218 extending between the first attachment portion 212 and the second attachment portion 214. The clamping portion 216 includes a pair of arched flexible engagement elements 230 extending above a lower surface 221 of the base portion 218. Each arched flexible engagement element 230 includes a first fixing portion 231a, a second fixing portion 231b, and an arched engagement portion 233, the arched flexible engagement element 230 extending from a first side 213 of the snap wire clamp 210 at the first fixing portion 231a, the arched flexible engagement element 230 extending from a second side 215 of the snap wire clamp 210 at the second fixing portion 231b, and the arched engagement portion 233 extending between the first and second fixing portions 231a, 231b. The arcuate flexible engagement element 230 is configured such that the respective engagement portion 233 can be deflected in a direction perpendicular to its longitudinal dimension, thereby effectively causing elastic rotation about an axis defined by the fixed portions 231a, 231b in the illustrated embodiment. Fig.16 When the snap reel CR is shown, this translates into flexibility in the circumferential direction of the snap reel CR. Thus, for example, when the snap wire clamp 210 is attached to the snap reel CR, the flexible engagement element 230 can deflect when in contact with the crest 202 of the snap wire CL, and thus be reliably guided into engagement with the trough 204 without the need for precise alignment.

[0129] The snap wire clamp 210 is generally similar to the snap wire clamps 10, 10', 10", 10"', 10"" described above, except for the arcuate flexible engagement element 230, and may include any or all of the features described herein in conjunction with the other embodiments of the snap wire clamp of the first aspect, particularly in conjunction with the snap wire clamp of the first aspect. Figures 1 to 15b Any or all features described and / or shown.

[0130] In the embodiment shown, in order to optionally achieve improved engagement of the trough 204, the base portion 218 is composed of two independent sub-strips 219a, 219b in the form of an I-beam, which provides a higher bending stiffness in a direction corresponding to the radial direction of the snap reel CR and a lower bending stiffness in a direction tangential to the circumference of the snap reel CR. Therefore, the flexibility of the sub-strips 219a, 219b increases the flexibility of the flexible engagement element 230, thereby allowing a greater overall deflection of the engagement portion 233.

[0131] Fig.17 One embodiment of a snap-on wire clamp 310 is shown having a flexible engagement element 330 having an eyelet 334 formed at a free end 333. The snap-on wire clamp 310 also includes a base portion 318 and first and second attachment portions 312, 314, which are generally similar to the corresponding portions described above. The flexible engagement element 330 also has a fixed end 331 that is connected to and extends from a central portion of an upper surface 322 of the base portion 318, and in particular, extends from a connecting portion 350 connecting sub-strips 319a, 319b as described above. Fig.17 As shown, Figures 1 to 4 The snap-on wire clamp 10 shown differs in that the flexible engagement element 330 extends from the base portion 318 in a direction defined by its width w. Thus, when attached to the snap-on reel, the flexible engagement element 330 may be positioned as shown in FIG. Fig.17 The snap-on reel 310 is shown in a rest position (i.e., extending tangentially to the circumference of the snap-on reel), or in an engaged position in which the free end of the snap-on wire wound on the snap-on reel passes through the eyelet 330, thereby bending the flexible engagement element 330 radially inwardly around its fixed end 331. This configuration can allow the free end of the snap-on wire to be advantageously released by removing the free end of the snap-on wire from the eyelet 334 without removing the snap-on wire clamp 310 from the snap-on reel. When attaching the snap-on wire clamp 310 to the snap-on reel, it is preferred to first fit the eyelet 334 over the free end of the snap-on wire before attaching the attachment portions 312, 314 to the corresponding mating portions and thereby fixing the free end relative to the snap-on reel.

[0132] The snap wire clamp 310 is generally similar to the snap wire clamps 10, 10', 10", 10"', 10"", 210 described above, except for the flexible engagement element 330 having the eyelet 334, and may include any or all of the features described herein in conjunction with the other embodiments of the snap wire clamp of the first aspect, in particular in conjunction with the snap wire clamp of the first aspect. Figures 1 to 16 Any or all features described and / or shown.

[0133] Fig.18a and 18b Shows that the structure is Figures 1 to 4The two embodiments of snap wire clamps 410, 510 are similar to the snap wire clamp 10 of the present invention, wherein the flexible engagement elements 430, 530 also have interlocking members 440, 540 configured to interlock with portions of the snap wire. Fig.18a In an embodiment of the snap wire clamp 410, the interlocking members are provided in each flexible engagement element 430 in the form of a plurality of recesses 440 which are aligned with and face the corresponding recesses 440 in the adjacent flexible engagement element 430. In the illustrated embodiment, all of the flexible engagement elements except the two outermost flexible engagement elements 430a, 430b are thereby formed into an alternatingly twisted wavy pattern. Each pair of aligned and facing recesses 440 forms a channel-shaped seat 460 configured to receive a portion of the snap wire passing therethrough. The width of the channel-shaped seat 460 is suitable for but smaller than the width of the snap wire to be passed therethrough, so that the snap wire is elastically clamped therebetween. Fig.18b In an embodiment of the snap wire clamp 510 of FIG. 4 , the interlocking members are provided in the form of a plurality of shark teeth 540 extending laterally outward from the flexible engagement element 530. When the snap wire clamp 410, 510 is attached to the snap reel, the flexible engagement element 430, 530 deflects when in contact with the snap wire, causing the interlocking members 440, 540 to interlock with portions of the snap wire.

[0134] The interlocking members 440, 540 advantageously further limit the range of movement of the free end of the snap wire engaged by the flexible engagement elements 430, 530 in a radially inward direction relative to the snap reel. In particular, this advantageously maintains engagement of the free end of the snap wire in situations where the length of the flexible engagement elements is insufficient to bias the free end radially inward and, for example, against the outer surface 110 of the hub 103 of the snap reel CR.

[0135] The snap wire clamps 410, 510 are generally similar to the snap wire clamps 10, 10', 10", 10"', 10"", 210, 310 described above, except for the flexible engagement elements 430, 530 having the interlocking members 440, 540, and may include any or all of the features described herein in conjunction with the other embodiments of the snap wire clamps of the first aspect, in particular in conjunction with Figures 1 to 17 Any or all features described and / or shown.

[0136] exist Fig.19a and 19b, some embodiments of snap wire clamps 610, 710 are shown in which the base portion 618, 718 includes a flexible engagement element 630, 730 configured to engage with a corresponding portion of the snap wire CL wound on the snap reel CR. The flexible engagement element 630, 730 is also configured to provide a bridge distance D between the first and second attachment portions 612, 614 and 712, 714, respectively.

[0137] exist Fig.19a In the embodiment of the present invention (i.e., the snap wire clamp 610), the base portion 618 is formed as an elongated flexible member that doubles as a flexible engagement element 630 configured to engage with the trough 204 of the snap wire CL wound on the snap reel CR. The base portion 618 is configured as Fig.19a The seat portion 618 is shown resiliently deflecting (eg, when pressed against the crest 202 of the snap line CL) to guide the seat portion 618 into engagement with the trough 204 without requiring precise alignment.

[0138] Snap wire clamp 710 includes a base portion 718 having a pair of flexible sub-strips 719a, 719b configured to engage portions of snap wire CL, thereby doubling as flexible engagement elements 730. Sub-strips 719a, 719b are separated by a window 740 for receiving a portion of snap wire CL. Fig.19b A particularly advantageous use of the snap-on cable clamp 710 is shown, wherein the snap-on cable CL passes through the window 740, the first snap C1 passes over the first sub-strip 719a, and the adjacent second snap C2 passes under the second sub-strip 719b. In this way, the second sub-strip 719b exerts a force radially inwards on the second snap C2, which is transmitted along the snap-on cable CL to the first snap C1, which in turn presses radially inwards against the first sub-strip 719a. The portion of the snap-on cable CL that accommodates the snaps C1, C2 and is engaged by the snap-on cable clamp 710 is thereby secured against movement in a longitudinal direction that corresponds substantially to the circumferential direction of the snap reel CR, and against movement in a wave pattern that corresponds substantially to the radial direction of the snap reel CR.

[0139] However, it should be understood that the snap-on wire clamp 710 is not limited to Fig.19b In particular, the snap-on wire clamp 710 can be used with Fig.19a The snap wire clamp 610 in the embodiment is similarly attached to the snap wire reel CR, i.e., the snap wire CL is not passed through the window 740, so that the snap wires C1 and C2 are both radially located below the snap wire clamp 710. When attached in this way, the flexibility of the sub-strips 719a and 719b enables them to deflect in a direction tangential to the circumference of the snap wire reel CR, as described above in conjunction with Fig.16 described.

[0140] The snap-on wire clamps 610, 710 are generally similar to the snap-on wire clamps 10, 10', 10", 10"', 10"", 210, 310, 410, 510 described above, except that they include a base portion 618, 718 that also serves as a flexible engagement element 630, 730, and may include any or all of the features described herein in conjunction with the other embodiments of the snap-on wire clamp of the first aspect, particularly in conjunction with Figures 1 to 18b Any or all features described and / or shown.

[0141] The illustrated embodiments of the snap wire clamp 10, 10', 10", 10'", 10"", 210, 310, 410, 510, 610, 710 are formed from a single piece of material. In particular, the snap wire clamp 10, 10', 10", 10'", 10"", 210, 310, 410, 510, 610, 710 and other embodiments thereof are preferably injection moldable from a suitable thermoplastic. More preferably, the snap wire clamp 10, 10', 10", 10'", 10"", 210, 310, 410, 510, 610, 710 and other embodiments thereof comprise polypropylene (PP). However, it should be understood that in other embodiments, the snap-on wire clamp 10, 10', 10", 10'", 10"", 210, 310, 410, 510, 610, 710 is assembled from multiple parts, preferably by welding and / or using an adhesive (such as glue).

Claims

1. A snap reel (CR) for storing a snap wire (CL) wound thereon and configured to be used together with a snap wire clamp (10; 210; 310; 410; 510; 610; 710), the snap reel (CR) comprising: a hub (103) defining a central axis (A); A first side wall (106) and a second side wall (108), each of which extends radially outward from an outer peripheral surface (110) of the hub portion (103), wherein the first side wall (106) and the second side wall (108) are spaced apart in the axial direction to define a snap wire winding space (112) therebetween; a first mating portion (102) provided by the first side wall (106) and a second mating portion (104) provided by the second side wall (108), each mating portion (102, 104) being configured for removably attaching a correspondingly shaped attachment portion (12, 14) of the snap-on wire clamp (10) to the snap-on reel (CR); wherein each of the first mating portion (102) and the second mating portion (104) includes a protrusion (114, 116) extending along an outer edge portion (118, 120) of a corresponding side wall (106, 108); and wherein at least one of the first mating portion (102) and the second mating portion (104) comprises a locking groove (122, 123) extending in a circumferential direction and arranged in the corresponding side wall (106, 108); and wherein the locking grooves (122, 123) extending in the circumferential direction of the first mating portion (102) and / or the second mating portion (104) are arranged radially inward from the corresponding protrusions (114, 116); and The snap wire (CL) is wound on the snap reel (CR) so as to be located in the snap wire winding space (112) of the snap reel (CR), and the snap wire (CL) includes a wave pattern consisting of alternating wave crests (202) and wave troughs (204).

2. The snap reel (CR) according to claim 1, wherein: The locking grooves (122, 123) of the first mating portion (102) and / or the second mating portion (104) extending in the circumferential direction are arranged adjacent to the corresponding protrusions (114, 116).

3. The snap reel (CR) according to claim 1 or 2, wherein: The locking grooves (122, 123) extending in the circumferential direction are arranged in a single section extending continuously in the circumferential direction.

4. The snap reel (CR) according to claim 1 or 2, wherein: The circumferentially extending locking grooves (122, 123) are provided in a single section that extends only partially circumferentially.

5. The snap-on reel (CR) according to any one of the preceding claims, further comprising a snap-on wire clamp holder (130) separate from the first mating portion (102) and the second mating portion (104).

6. The snap reel (CR) according to claim 5, wherein: The snap wire clamp holder (130) is configured to releasably attach the snap wire clamp (10) to the snap reel (CR) in a position that allows the snap wire (CL) to be released.

7. The snap-on reel (CR) according to any one of claims 1 to 6, further comprising at least one storage recess (132) disposed in at least one of the first side wall (106) and the second side wall (108).

8. A snap reel (CR) as described in claim 7, wherein the at least one storage recess (132) is configured to at least partially receive a snap wire clamp (10), which is attached to at least one of the first (102) or second mating parts (104) in a release position, in which the free end of the snap wire (CL) wound on the snap reel (CR) is not fixed.

9. A snap reel (CR) as described in claim 7 or 8, wherein the storage recess (132) is also configured to enable the snap line clamp (10) to pivot from a release position to a fixed position, in which the free end of the snap line (CL) is fixed to the snap reel (CR).

10. A snap-on reel assembly, comprising: A snap reel (CR) as claimed in any one of claims 1 to 9; and A snap wire clamp (10; 210; 310; 410; 510; 610; 710) removably attached to a snap reel (CR), the snap wire clamp comprising: at least one attachment portion (12, 14) configured to removably attach to a mating portion (102, 104) of a snap reel (CR) for attaching the snap wire clamp to the snap reel (CR); a clamping portion (16) comprising a plurality of flexible engagement elements (30) shaped to engage at least one corresponding portion (204) of a free end portion of a snap cord (CL) wound on a snap reel (CR); The at least one attachment portion (12, 14) and the clamping portion (16) are configured to fix the free end portion of the snap cord (CL) wound on the snap reel (CR) by attaching the at least one attachment portion (12, 14) to the mating portion (102, 104), at least preventing it from being separated from the snap reel (CR) in the radial direction.

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