The present disclosure relates broadly and generally to textile machines; and more particularly, to textile machines which incorporate rotating spindles, shafts and other moving parts. Such textile machines commonly incorporate an arcuate (or bent) exterior metal cover. The protective cover defines an opening or access through which yarn passes to the underlying machine. In one exemplary embodiment, the present safety guard effectively shields the yarn access to block inadvertent entry of any loose-hanging excess yarn or other debris which may create a safety hazard to the machine operator.
Various exemplary embodiments of the present disclosure are described below. Use of the term “exemplary” means illustrative or by way of example only, and any reference herein to “the invention” is not intended to restrict or limit the invention to exact features or steps of any one or more of the exemplary embodiments disclosed in the present specification. References to “exemplary embodiment,” “one embodiment,” “an embodiment,” “various embodiments,” and the like, may indicate that the embodiment(s) of the invention so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in one embodiment,” or “in an exemplary embodiment,” do not necessarily refer to the same embodiment, although they may.
It is also noted that terms like “preferably”, “commonly”, and “typically” are not utilized herein to limit the scope of the claimed invention or to imply that certain features are critical, essential, or even important to the structure or function of the claimed invention. Rather, these terms are merely intended to highlight alternative or additional features that may or may not be utilized in a particular embodiment of the present invention.
According to one exemplary embodiment, the present disclosure comprises a textile machine including a protective exterior cover, a slotted yarn access formed in the protective cover, and a safety guard shielding at least a portion of the slotted yarn access. The safety guard is adapted to block inadvertent entry of debris through the protective cover and into underlying moving parts of the textile machine. The safety guard comprises a guard body mounted to the protective cover proximate the slotted yarn access. The guard body has a fastener edge residing adjacent a first side of the slotted yarn access, and a free edge residing adjacent a second side of the slotted yarn access. The guard body defines at least one fastener hole in its fastener edge. A spacer is located between the guard body and the protective cover on the first side of the slotted yarn access. The free edge of the guard body extends above and across the slotted yarn access and forms an unobstructed space on the second side of the slotted yarn access allowing yarn to pass around the free edge, underneath the safety guard and through the protective cover. A fastener extends through the fastener hole and mounts the safety guard to the protective cover.
According to another exemplary embodiment, the guard body comprises a thin rigid metal plate.
According to another exemplary embodiment, the guard body further defines an intermediate see-through observation window located between the fastener edge and the free edge.
According to another exemplary embodiment, the guard body comprise a thin flexible plate.
According to another exemplary embodiment, the flexible plate comprises a substantially transparent see-through plastic.
According to another exemplary embodiment, the spacer comprises a separately-formed cylindrical spacer carried on the fastener.
[polo] According to another exemplary embodiment, the spacer is integrally molded with an underside of the guard body.
According to another exemplary embodiment, the integrally molded spacer comprises an elongated rib extending substantially perpendicular to a longitudinal axis of the guard body.
According to another exemplary embodiment, the free edge of the guard body is inwardly-curved towards the slotted yarn access, such that the free edge promotes self-threading of the yarn past the safety guard and through the slotted yarn access to the underlying textile machine. The term “inwardly-curved” means that at least a portion of the free edge of the guard body curves inwardly towards the slotted yarn access—the “free edge” of the guard body being defined as that portion which extends immediately adjacent the first side the slotted yarn access to the second side of the slotted yarn access.
According to another exemplary embodiment, the guard body resides between 0.125 and 0.500 inches above a surface of the protective cover on the second side of the slotted yarn access.
In another exemplary embodiment, the present disclosure comprises a method for shielding at least a portion of a slotted yarn access formed in a protective cover of a textile machine to block inadvertent entry of debris. The method includes mounting a fastener edge of a safety guard to the protective cover on a first side of the slotted yarn access. An inwardly-curved free edge of the safety guard extends above and across the slotted yarn access and forms an unobstructed space on a second side of the slotted yarn access allowing yarn to pass around the free edge, underneath the safety guard and through the protective cover. The safety guard is oriented relative to the slotted yarn access, such that the inwardly-curved free edge promotes self-threading of the yarn past the safety guard and through the protective cover to the underlying textile machine.
Exemplary embodiments of the present disclosure will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements, and wherein:
The present invention is described more fully hereinafter with reference to the accompanying drawings, in which one or more exemplary embodiments of the invention are shown. Like numbers used herein refer to like elements throughout. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be operative, enabling, and complete. Accordingly, the particular arrangements disclosed are meant to be illustrative only and not limiting as to the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalents thereof. Moreover, many embodiments, such as adaptations, variations, modifications, and equivalent arrangements, will be implicitly disclosed by the embodiments described herein and fall within the scope of the present invention.
Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Unless otherwise expressly defined herein, such terms are intended to be given their broad ordinary and customary meaning not inconsistent with that applicable in the relevant industry and without restriction to any specific embodiment hereinafter described. As used herein, the article “a” is intended to include one or more items. Where only one item is intended, the term “one”, “single”, or similar language is used. When used herein to join a list of items, the term “or” denotes at least one of the items, but does not exclude a plurality of items of the list.
For exemplary methods or processes of the invention, the sequence and/or arrangement of steps described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal arrangement, the steps of any such processes or methods are not limited to being carried out in any particular sequence or arrangement, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in various different sequences and arrangements while still falling within the scope of the present invention.
Additionally, any references to advantages, benefits, unexpected results, or operability of the present invention are not intended as an affirmation that the invention has been previously reduced to practice or that any testing has been performed. Likewise, unless stated otherwise, use of verbs in the past tense (present perfect or preterit) is not intended to indicate or imply that the invention has been previously reduced to practice or that any testing has been performed.
Referring now specifically to the drawings, a safety guard for textile machines according to one exemplary embodiment of the present disclosure is illustrated in
Referring to
The free edge 24 of the guard body 21 extends above and across the slotted yarn access 14, and forms an unobstructed space between the safety guard 10 and protective cover 11 on a free side “S2” of the slotted yarn access 14. The guard body 21 may reside between 0.125 and 0.500 inches above the outside surface of the protective cover 11 on the free side “S2” of the slotted yarn access 14. When threading-up the textile machine 12, this unobstructed space allows yarn “Y” to pass freely around the free edge 24 of the guard body 21, underneath the safety guard 10 and through the protective cover 11. The geometric bend of the safety guard 10 and inwardly-curved free edge 24 promotes self-threading of the yarn “Y” past the guard body 21 and through the slotted thread access 14 to the underlying textile machine 12. In the one embodiment, the free edge 24 of the guard body 21 has a relatively straight top portion 24A which extends from the fastener side “S1” of the slotted yarn access 14, across the slotted yarn access 14 at a top end 41 of the safety guard 10, a gently curved upper side portion 24B extending generally perpendicular to the top portion 24A on the free side “S2” of the yarn access 14, and a lower side/bottom portion 24C which curves inwardly from the upper side portion 24B curving across the slotted yarn access 14 at a bottom end 42 of the safety guard 10 on the fastener side “S1” of the yarn access 14. The exemplary safety guard 10 is relatively wide at its top end 41, and relatively narrow (or pointed) at its bottom end 42—with the bottom end 42 residing substantially on the fastener side “S1” of the slotted yarn access 14.
A further exemplary embodiment of the present safety guard 100 is illustrated in
The free edge 124 of the guard body 121 extends above and across the slotted yarn access 114, and forms an unobstructed space between the safety guard 100 and protective cover 111 on a free side “S2” of the slotted yarn access 114. As previously described, this unobstructed space allows yarn “Y” to pass freely around the free edge 124 of the guard body 121, underneath the safety guard 100 and through the protective cover 111. The geometric bend of the safety guard 100 and inwardly-curved free edge 124 promotes self-threading of the yarn “Y” past the guard body 121 and through the slotted thread access 114 to the underlying textile machine “M”. Like safety guard 10, the free edge 124 of the guard body 121 has a relatively straight top portion 124A which extends across the slotted yarn access 114 at a top end 141 of the safety guard 100. As best shown in
In each of the above embodiments, the relative width and geometry of the safety guard may vary depending upon the cross-sectional shape of the protective cover and dimensions of the yarn access. Additionally, the exemplary safety guard may permanently or releasably mount to the protective cover by means other than hardware, including (e.g.) adhesives, magnets, or other fixed or releasable means.
For the purposes of describing and defining the present invention it is noted that the use of relative terms, such as “substantially”, “generally”, “approximately”, and the like, are utilized herein to represent an inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. These terms are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.
Exemplary embodiments of the present invention are described above. No element, act, or instruction used in this description should be construed as important, necessary, critical, or essential to the invention unless explicitly described as such. Although only a few of the exemplary embodiments have been described in detail herein, those skilled in the art will readily appreciate that many modifications are possible in these exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the appended claims.
In the claims, any means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents, but also equivalent structures. Thus, although a nail and a screw may not be structural equivalents in that a nail employs a cylindrical surface to secure wooden parts together, whereas a screw employs a helical surface, in the environment of fastening wooden parts, a nail and a screw may be equivalent structures. Unless the exact language “means for” (performing a particular function or step) is recited in the claims, a construction under 35 U.S.C. § 112(f) [or 6th paragraph/pre-AIA] is not intended. Additionally, it is not intended that the scope of patent protection afforded the present invention be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself.
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Number | Date | Country | |
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62424808 | Nov 2016 | US |