Abstract
The present invention provides apparatus and a method for use in weaving elongate members together and most typically elongate members in the form of hair attached to the head of a person or a toy doll. The elongate members are provided in groups and the groups pass through passages in a weaving mechanism and along guide tubes which are located to the opposing side of the weaving mechanism from the item to which at least some of the elongate members are attached. Typically, relative movement of the weaving mechanism along the elongate members and the operation of the weaving mechanism cause the weave, such as in the form of plaiting, braiding or cornrowing to be formed.
Claims
1. Apparatus for the weaving together of a plurality of elongate members, said apparatus comprising; a weaving mechanism configured to move and weave respective elongate members together, said weaving mechanism comprising; a) three shuttles, each having a passage to allow the elongate members to pass through the weaving mechanism and into guide tubes and to allow relative movement between the weaving mechanism and the elongate members as the weaving mechanism is operated weaves together the elongate members; b) first and second rotatable guides in the weaving mechanism selectively driven about respective axes, the shuttles selectively moved via the first and second rotatable guides and selectively driven to move on a predefined path in combination and in sequence in a predefined manner to weave the elongate members; said guide tubes in which the respective elongate members are received, are located to a first side of the weaving mechanism and an item to which at least some of the elongate members are attached located to the opposing side of the said weaving mechanism; said apparatus further includes means to drive the weaving mechanism, said means connected to a crank and connecting arm which, in turn, is located to drive a gear wheel of a gearing mechanism to provide a sinusoidal motion to the weaving mechanism; the gearing mechanism includes first and second clutches which are connected to the crank so as to sequentially drive the first and second rotatable guides, the first clutch located with a first pair of gear wheels coaxially mounted so that the first rotatable guide is driven to rotate and move two of the said shuttles and the second clutch located with a second pair of gear wheels coaxially mounted so that the second rotatable guide is driven to rotate and move two of said shuttles and the said sequence of movement of the respective rotatable guides is repeated, wherein the said connecting arm has an arc of movement with null points of movement at opposing ends of said arc; and in movement from a null point towards the other null point the speed of movement accelerates and then decelerates; and a cam which, when in a first position restrains motion of a first rotatable guide while the second rotatable guide is driven to be rotated and, when in a second position, restrains motion of the second rotatable guide while the first rotatable guide is driven to be rotated, and the movement of the cam between said first and second positions is caused by movement of the said gear wheel of said gearing mechanism.
2. Apparatus according to claim 1 wherein said means to drive is a motor connected to the crank.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIGS. 1a, 1b and 1c illustrate alternate views of the apparatus in accordance with one embodiment of the invention;
(2) FIG. 2 illustrates one embodiment of shuttle and guide components of the apparatus;
(3) FIG. 3 illustrates the guide means, separating device and weaving mechanism in accordance with one embodiment of the invention;
(4) FIGS. 4a and 4b illustrate alternate views of the gearing mechanism in one embodiment;
(5) FIGS. 5a, 5b and 5c illustrate in a schematic manner, the use of the apparatus in accordance with one embodiment of the invention; and
(6) FIGS. 6a and 6b illustrate alternate views of a cam mechanism and secondary stop mechanism in accordance with one embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
(7) The embodiments discussed herein are merely illustrative of specific manners in which to make and use the invention and are not to be interpreted as limiting the scope.
(8) While the invention has been described with a certain degree of particularity, it is to be noted that many modifications may be made in the details of the invention's construction and the arrangement of its components without departing from the scope of this disclosure. It is understood that the invention is not limited to the embodiments set forth herein for purposes of exemplification.
(9) Referring firstly to FIGS. 1a-c there is shown apparatus in a form in accordance with one embodiment of the invention. The apparatus includes a housing 2 which is formed at one end with a handle portion 4 by which the apparatus can be ripped in use. The handle portion of the housing can also be used to locate therein a power supply connection and/or power cells and/or a manually operated lever to allow power to operate the weaving mechanism of the apparatus. When a power supply or power cells are provided they are connected to operate a motor which is provided to drive the weaving mechanism via a gearing mechanism located in the portion 8 of the housing. The gearing assembly is connected to move a weaving mechanism 6 located at the portion 10 of the housing. The weaving mechanism includes rotatable guides 12, 14 and shuttles 16, 18, 20. The shuttles are provided to be received in respective recesses 22, 24, 26, 28 formed in the rotatable guides 12, 14.
(10) The rotatable guides are provided to be rotatably moveable about respective axes 30, 32 and, as they do, they move the shuttles along with the same so as to move and change the relative positioning of the shuttles with respect to the recess portions and the rotatable guides and thereby create the weaving effect. The shuttles are confined to movement with the recesses 22, 24, 26, 28 by contact with the respective rotatable guides 12, 14 and the side walls 34 of the aperture 39 of the housing 2 and in which the rotatable guides and shuttles are mounted.
(11) Each of the shuttles is provided with a passage 35, 36, 37 and, at one opening into each passage, as shown, a guide tube 38, 40, 42 is connected to each of the passages on the side 41 of the housing 2. The opposing openings into the passages 35, 36, 37 are provided at the opposing side 43 of the housing and sit will be appreciated that the passages 35, 36, 37 extend from side 43 to side 41 of the housing 2 and pass through the weaving mechanism.
(12) The guide tubes also include, in this embodiment, extendable portions 44 which in this embodiment are provided to be telescopically extendable as indicated in FIG. 1b with one of the extendable portions 44, having been moved to the extended position to extend the length of the guide tube 40. In another embodiment the extendable portion can be provided in the form of bellows. The extendable portions 44 can each be extended downwardly as indicated by arrow 45 so as to lengthen the guide tubes to the required length to provide guidance for the extendable members which pass therethrough and thereby prevent tangling along the length of the respective elongate members.
(13) Turning now to FIG. 5a there is illustrated the apparatus as herein described by the general numeral 46. The apparatus is shown in location with respect to several groups 54, 56, 58 of elongate members which have been partially already woven together in FIG. 5a to form a plait or braided section 47. In this example, all of the elongate members are strands of hair but they could equally be fake hair, extensions, ribbons or the like.
(14) As shown in FIG. 5b, in this example, the elongate members are split into three groups 54, 56, 58 along their length, although more groups could be woven using adapted apparatus. Each of the groups of elongate members has one end 48 attached to an item, in this case the head 50 of the person whose hair is to be braided. The opposing, free ends 52 of the elongate member groups 54, 56, 58 are respectively moved into and through the passages so that the free ends of the group 54 are moved into passage 36, the free ends of the group 56 are moved into passage 35 and the free ends of the group 58 are moved into passage 37 at the side 43 of the apparatus housing. The groups of elongate members are then continued to be moved through the passages 35, 36, 37 to the side 41 of the housing and then into the respective connected guide tubes 40, 38, 42 respectively in the direction as indicated by arrow 60, until the elongate members are fully passed through the tubes and the apparatus 46 is now at a start position which is relatively close to the persons head 50.
(15) With the groups of elongate members 54, 56, 58 in the required position and extending along the guide means 40, 38, 42 to the side 62 of the apparatus 46 and the persons head 50 at the opposing side 64 of the apparatus 46, so the weaving mechanism can then be operated to cause the movement of the shuttles 16, 18, 20 by the rotatable guides 12, 14, with the shuttles moving in a stop start staggered fashion and following a figure of eight pattern as illustrated in FIG. 5c by broken lines 66, such that the relative movement of the shuttles causes the weaving of the elongate members to be achieved.
(16) As the weaving mechanism is operated, so the person holding the apparatus, which may be the same person whose hair is being braided or plaited, or may be a different person, moves the apparatus 46 progressively away from the head 50 in the direction of arrow 69 shown in FIG. 5a so as to cause the braid or plait 47 to be formed to the desired length along the length of the elongate members. When the weave has been completed to the required length or the free ends 52 of the elongate members has been reached, the waving mechanism is at the finish position which is a distance from the head 50 which is greater than the distance of the weaving mechanism from the head 50 at the start position. The weaving mechanism can then be switched off and any remaining non-braided elongate members removed from the apparatus guide means.
(17) Turning now to FIG. 2 there is illustrated in greater detail the shuttles 16, 18, 20 and rotatable guides 12, 14. Each of the shuttles are provided with first and second opposing side walls 68, 70 which are provided to be received in a recess 24, 20, 28, 30 of the rotatable guides. In this example the side walls of the shuttles and non-recessed portions of the rotatable guides are provided with engaging drive teeth 71 and location means 69 so as to maintain the shuttles so that they lie in the same plane as the rotatable guide.
(18) FIGS. 4a and b illustrate one embodiment of a gear and drive mechanism which is connected to move the rotatable guides 12, 14 and hence the shuttles 16, 18, 20. Control means in the form of a cam 73 shown in FIG. 4a is provided so as to ensure that the rotatable guides are driven in a sequential manner such that, during operation, one of the rotatable guides 12, 14, and the two of the three shuttles in connection therewith are moved at an instant of time and the rotatable guides are moved in a synchronised manner in order to provide the required movement sequence of the shuttle movement to create the braid or plait.
(19) FIG. 3 illustrates the separate components which, in combination, form a preferred embodiment of the invention. The housing 2 is shown in a form ready for use and it should be noted that the passages 35, 36, 37 are provided with resilient means 76 which lie across the opening into the same at side 43 in order to allow the elongate members to be passed through the same, but also to allow the resilient means to exert a biasing force to maintain the elongate members in position with respect to the passage. In one embodiment the resilient means is formed by a flexible plastics sheet material which is semi rigid and elastic with a series of slits formed therein and which, when a force is applied thereto, causes a sufficient space to be formed to allow the group of elongate members to be passed therethrough.
(20) The guide tubes 38, 40, 42 are located to the respective passages and extend from the opposing side 41 of the housing. In this embodiment a hook and elongate member device 78 is provided for each tube and which can pass along the length of the tube. At one end there are provided gripping fins 80 which can be gripped by the user to move the device 78 with respect to the tube and passage in which the same is located. At the opposing end of the device 78 there is provided a hook portion 82 which, when the portion 78 is in the guide tube to load the guide tube, extends through the passage 35, 36, 37 and beyond the same to protrude at the side 43.
(21) At the commencement of loading the apparatus, then a further device 84 is positioned near the ends of the elongate members close to the head 50. The device 84 separates the elongate members into groups, in this case up to three groups 54, 56, 58. The device includes a neck portion 90 connected to three branch slots 86, 87, 88 into which the respective separated groups of elongate members 54, 56, 58 are positioned. The device can also be provided with locking means 92 which when the elongate members are in position, is extended across the body 87 to locator 85 to thereby retain the elongate members to the body 87. With the groups 54, 56, 58 separated and held by the device, the apparatus can be moved into position with a hook portion protruding from the passage opening at side 43. Each group of elongate members is released from the device 84 and then passed around a respective hook portion 82 and when this has been done, each of the devices 78 is pulled in the direction 60 to move the h ok portions 82 through the respective passage and guide tube, and as it does so, it draws the attached group of elongate members through the passage and guide means so that the free ends 52 of the group of elongate members are brought to the position illustrated in FIG. 5b. This, in conjunction with the resilient means 76, ensures that the elongate members in each group are drawn fully though the passages and guide tubes to lie at the opposing side 41 of the apparatus from which the persons or dolls head is located and thereby ensures that the braid or plait which is formed is neat and tight.
(22) Turning now to FIGS. 4a and b an embodiment of the internal assembly of the apparatus is shown in greater detail. It is shown how a single motor 94 is provided in the housing portion 4 and is connected via a gear box 96 to the gearing mechanism. The gearing mechanism includes a crank 98 and connecting arm 99 connected to the motor. The connecting arm 99 is connected to gear wheel 100 and has a natural arc of movement 101. Opposing ends 103, 105 of the movement are the end points of the movement of the arm and reverse the movement of the same along the arc. The connecting arm connects the crank to gear 100 via crank pins on each. The angular limit of movement of the gear 100 is controlled by the throw of the crank arm 99 and the rotatable guides 12,14 contra rotate as a result of this, when moved. The gear wheel 100 is connected to turn both gear wheels 104, 104 in the same direction at the same time, and the respective gear wheels 104, 104 are coaxially located with larger gear wheels 74, 75. The gear wheels 74, 75 are linked by respective single pawl, single point clutches 107, 109, with a first clutch located between the gear wheel pair 104, 74 and the other clutch 109 located between the gear wheel pair 104, 75 an as to selectively drive the rotatable guides 12, 14 such that one rotatable guide 12 is driven by one gear wheel 74 for a first sequence and then the other rotatable guide 14 is driven by the other gear wheel 75 for a sequence and the same sequences are repeated. There is therefore provided a gearing mechanism which allows for the accurate and efficient control of the movement of the rotatable guides 12, 14 and hence shuttles 35, 36, 37 in the required configuration no as to provide the braiding and/or plaiting of elongate members such as lengths of hair. The crank arm 99 connects via the pins on the crank and gear 100 and the null points of movement are at the respective ends 103, 105 of the arc so as to ensure a smooth sinusoidal change of guide selection engages at a null point at one end of the arc and then accelerates in movement before decelerating to a null point at the other end of the arc before changing direction so the motor can continue to be operated at an optimum speed and therefore the smooth sinusoidal motion can be achieved without adversely affecting the operation of the motor.
(23) FIG. 6a illustrates a pin 111 on the gear wheel deflecting the cam 73 to restrain motion of one of the rotatable guides whilst allowing the other rotatable guide to be driven to rotate The pin 111 has a partner pin angularly displaced on gear 100 which reverses the status of the cam to allow for alternate motion of the rotatable guides 12, 14 and to position of the guides. FIG. 6b shows the secondary stop mechanism which includes a pawl 115 pivoted for rocking movement about pivot 117 and that can be positioned to prevent creep-back of the rotatable guides depending on which of the pawl arms, 119, 121 is moved inwardly about the pivot 117. Typically, both the cam and secondary stop are biased so as to remain neutral (central) when not influenced by pins 111.
(24) There is therefore provided a method and apparatus which allows the improved and automated formation of braids in elongate members such as hair or hair extensions.
(25) Whereas, the invention has been described in relation to the drawings attached hereto, it should be understood that other and further modifications, apart from those shown or suggested herein, may be made within the scope of this invention.
