Untitled record

full description

Sister Ra'a wallpaper

Different occupations place people in precarious situations at relatively dangerous heights, thus creating a need for a fall protection device or a safety device to prevent a fall. 5 Among other things, this device generally includes a safety line built between a support structure and a safety harness that is worn by a person working near the support structure.

Commonly used safety harnesses include a firm, flexible strap that extends over the user's shoulders and applies a reasonable weight of the harness, tools, and other equipment attached to the harness on the user's shoulders. The brackets include a tool harness with an adjusting element that lowers the associated loads associated with the tool harness but does not help support the weight of the upper section of the load or the auxiliary equipment 10 that may attach to the loader's back D-ring. Therefore, some of the disadvantages of these types of suspenders are in the loads applied to the shoulders of the user causing deformation, which may lead to fatigue; Tightening of the shoulder straps causes the chest strap and other components above the back's D-ring to rise upward, requiring unnecessary readjustment; The back D-ring is subject to sliding down the user's back and out of proper adjustment due to the weight of 15 SRLs (self-retracting lifelines), energy absorbing suspension ropes, restraint suspension ropes,

and other fall protection equipment.

The closest cases of industrial technology related to the subject matter of the invention are the two American patent documents

(A) Patent Application (US) No. 2005267221 dated 03/31/2005 AD.

(B) Patent Application (American) No. 2004163156 dated 08/26/2004 AD.

20 (C) Patent Application (American) No. 2006113147 dated 06/01/2006 AD.

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and (d) Patent Application (American) No. 2006207828 dated 21/09/2006 AD.

However, all the documents mentioned above did not disclose at all or suggest the transfer of the weight of the loads from the close shoulder braces to the waist bras and/or the close buttock bras with the composition and shape of the elements mentioned in this invention, as the mentioned documents reveal only the distribution of the load and its down in the direction of 5 upper towards the user's shoulders.

Document (a) discloses the transfer of the load upwards towards the user’s shoulders and document (b) does not reveal elements that can be considered a load distribution group, while document (c) reveals a load distribution group whose main objective is to give shape to the safety carrier. Document (d) reveals the The safety belt does not serve the main function mentioned in this invention, which is to transfer the weight of the loads towards the waist.

<p>10 For the reasons mentioned above and for other reasons mentioned below, which will become clear to the skilled in the art when</p>

Reading and understanding the current specification, there is a need in the art for an improved safety carrier with a weight distribution assembly.

General description of the invention

The above-mentioned problems associated with the previous tools are addressed by embodiments of the present invention and will be understood by reading and understanding the current specification. The following summary is for representation, not

<p>15th limitation. It is provided only to assist the reader in understanding some aspects of the invention.</p>

In one embodiment, the safety harness includes shoulder straps, a waist strap, and a weight-distributing assembly that serves to connect the shoulder straps and the waist strap in between. The weight distribution complex is designed and arranged to transfer a load from the side of the shoulder straps to the side of the waistband.

In one embodiment, the safety harness includes a back padding assembly, at least one of

<p>20 The waist belt and thigh padding, the shoulder straps are interconnected with the back padding complex and at least one of the waist pads, the thigh padding, and the support compound interconnect the back padding complex and at least one of the waist pads and the thigh padding. The support assembly is at least semi-rigid and designed and arranged to transfer most of the load from the vicinity of the back padding compound and so next to the shoulder straps to the vicinity of at least one of the waist belt and thigh padding.</p>

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Brief explanation of the drawings

The present invention can be more easily understood, and its further advantages and uses will become clearer, when the detailed description and the following forms in it are taken into consideration:

Figure 1 is a rear view of a safety carrier that includes a weight distribution assembly created according to the invention

5 current and worn by a user;

Figure 2 is a side view of the safety sling worn by the user shown in Figure 1;

Figure 3 is a rear view of the user-worn safety sling shown in Figure 1 with the insert removed;

Figure 4 is a side view of the safety sling worn by the user shown in Figure 3;

<p>10 Figure 5 is a flat back drawing of the safety sling shown in Figure 1;</p>

Figure 6 is a side view of the safety sling shown in Figure 5;

Figure 7 is a rear perspective diagram of the safety sling shown in Figure 1;

Figure 8 is a frontal view of the safety sling shown in Figure 1;

Figure 9 is a flat front drawing of the safety cradle shown in Figure 1;

<p>15th Figure 10 is a rear perspective diagram of the safety sling weight distribution assembly shown in Figure 1;</p>

Figure 11 is a rear view of the weight distribution assembly shown in Figure 10;

Figure 12 is a top view of the weight distribution complex shown in Figure 10;

Figure 13 is a side view of the weight distribution complex shown in Figure 10;

Figure 14 is a bottom view of the weight distribution complex shown in Figure 10;

<p>20 Figure 15 is a front view of the weight distribution assembly shown in Figure 10;</p>

Figure 16 is a back view of the weight distribution complex shown in Figure 10;

Figure 17 is an enlarged back view of a support member, adjustable member, and coupling for the weight distribution manifold shown in Figure 10;

Fig. 18 is a rear view of sections of the weight distribution complex shown in Fig. 17 with a member

25 first avatar support;

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Fig. 19 is a rear view of sections of the weight distribution complex shown in Fig. 17 with a second embodied support member;

Figure 20 is a rear view of the coupling shown in Figure 17;

Figure 21 is a lower view of the coupling shown in Figure 20;

<p>5 Figure 22 is a front view of the coupling shown in Figure 20;</p>

Figure 23 is a side view of the coupling shown in Figure 20;

Figure 24 is a rear view of the coupling shown in Figure 20;

Figure 25 is a front view of the coupling shown in Figure 20;

Figure 26 is a rear view of an embodied support member;

<p>10 Figure 27 is a lateral cross-sectional drawing of the support member shown in Figure 26;</p>

Figure 28 is a side view of the support member shown in Figure 26;

Figure 29 is a bottom view of the support member shown in Figure 26;

Figure 30 is a perspective drawing of the support member shown in Figure 26;

Figure 31 is a rear view of another embodied support member;

<p>15th Figure 32 is a lateral cross-sectional view of the support member shown in Figure 31;</p>

Figure 33 is a side view of the support member shown in Figure 31;

Figure 34 is a bottom view of the support member shown in Figure 31;

Figure 35 is a perspective drawing of the support member shown in Figure 31;

Figure 36 is a rear view of the adjustable member shown in Figure 17;

<p>20 Figure 37 is a side view of the adjustable member shown in Figure 36;</p>

Figure 38 is a front view of the adjustable member shown in Figure 36;

Figure 39 is a lateral cross-sectional view of the adjustable member shown in Figure 36;

Figure 40 is a rear perspective drawing of the adjustable member shown in Figure 36;

Figure 41 is a frontal view of the adjustable member shown in Figure 36;

<p>25 Figure 42 is a side view of the support member button;</p>

Figure 43 is a back view of the button shown in Figure 42;

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Figure 44 is a lateral cross-sectional view of the button shown in Figure 42;

Figure 45 is a side view of the support member siding member;

Figure 46 is a rear view of the bias member shown in Figure 45;

Figure 47 is a rear view of the support member seal ring;

<p>5 Figure 48 is a side view of the metal ring shown in Figure 47;</p>

Figure 49 is a side view of the support member clamping device;

Figure 50 is a rear view of the fastener shown in Figure 49;

Figure 51 is a lateral cross-sectional view of the clamp shown in Figure 49;

Figure 52 is a rear view of the support member seal ring;

<p>10 Fig. 53 is a side view of the washer shown in Fig. 52;</p>

Figure 54 is a rear view of another embodied safety sling that includes another embodied weight distribution assembly

arising according to the present invention;

Figure 55 is a rear view of another embodied safety sling comprising another embodied weight distribution assembly created according to the present invention;

<p>15th Figure 56 is a rear view of another embodied safety sling that includes an embodied weight distribution assembly</p>

last arising according to the present invention;

Figure 57 is a rear view of another embodied safety sling that includes an embodied weight distribution assembly

last arising according to the present invention;

Figure 58 is a rear view of another embodied safety sling that includes an embodied weight distribution assembly

<p>20 another arising according to the present invention;</p>

Figure 59 is a side view of the safety sling shown in Figure 58; And

Figure 60 is a rear perspective diagram of the safety sling shown in Figure 58.

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In common practice, the various described features are not drawn for scaling but are drawn to focus on specific features related to the present invention. Reference symbols refer to similar items throughout the figures and text.

Detailed description:

<p>5 In the following detailed description, reference is made to the accompanying drawings, which are part of it, and which are</p>

They are illustrated by illustrative embodiments in which the invention may be practiced. Such embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is understood that other embodiments may be used and mechanical changes may be made without departing from the scope and spirit of the present invention. The following detailed description is, therefore, not taken in a limited sense, and the scope of the present invention is limited only by claims 10 and their equivalents.

Embodiments of the present invention generally provide a safety harness with a semi-rigid-to-rigid weight distribution assembly that includes a support member or support assembly that interconnects the back padding assembly and the waist belt or thigh pad so that when the waist belt is properly attached and weight is added to the D-ring of the back pad assembly, The weight distribution assembly is carried compressed and transfers most of the load/weight to the user's thigh 15 or pelvic area, which is supported by the user's legs. This reduces the weight applied next to the user's shoulders, reduces the risk of shoulder pain, and reduces back pain. In addition, this greatly reduces the tension in the strap's shoulder straps, which may affect how the strap is placed on the user. Examples of materials that can be used for a support member or support assembly are metal, composite materials, plastics, carbon fibres, and other suitable materials.

<p>20 The vertically bearing weight distribution assembly may take many forms and may include a support member</p>

Single, multiple support members, and fulcrum point(s) in multiple positions for increased comfort and mobility. The weight distribution complex may be at least partially integrated with the total body sling, eg at least partially integrated with the back pad assembly, at least partially integrated With thigh padding, or it may be an accessory tread connected through connecting elements next to the back padding assembly and waist belt/thigh pad 25.

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The weight distribution assembly may be connected to the back pad and waist belt/thigh padding assembly through, for example, any suitable connecting member, but without limitation, thread (sewn), rivets, couplings, pockets, channels, etc. The weight distribution assembly may be It is also retractable, telescopic, or its length can be adjusted in another way.

<p>5 Another advantage of the present invention is the increased comfort for the user wearing the safety sling as a result of</p>

For weight distribution of tools, equipment, etc., adjacent to the user's shoulders to the user's thigh/waist area. As a result, users are able to work for longer periods of time with greater comfort and use larger and heavier personal self-retracting safety ropes.

There is currently no commercial example of a full body safety sling with a vertically bearing post, 10 seat member, support member, support complex, or other weight transfer member that transfers weight from the vicinity of the user's shoulders to the user's thigh or pelvic area.

In one embodiment, the strap includes 100 harness shoulder straps 1st and 2nd 102nd and 103rd, a waist strap 106 (waist strap), and a weight distribution complex

108 (weight distribution assembly. Optionally, 111 (padding .) may be used

<p>15th To add relief between the shoulder ligaments and the user from the vicinity of the neck bones of the user of the dorsal pad assembly 110. In general, the weight distribution complex 108 includes a back pad assembly 110 operationally connected to the shoulder ligaments 102 and 103, a coupling device 160 (connector operationally connected with Waistband 106, and 129 support assembly interconnected with back gasket assembly 108 and coupling 160.</p>

<p>20 Back pad assemblies are commonly used to connect the shoulder ligaments and the D-ring interstitial. picture</p>

Generally, back pad assemblies include slits through which the shoulder straps are routed to connect the D-ring with the shoulder straps. As shown in Figure 15, the back pad complex includes 110 slots 104a and 105a through which the shoulder strap is routed 102 and includes slits (104 (slots)b and 105b) through which the shoulder strap is routed 103 The 113 (D-ring) D ring is placed between the slits

<p>25 The upper 104a and 104b and the lower 105a and 105b ligaments, and the shoulder ligaments 102 and 103 are also directed through the loop 113 D. It is recognized that the shoulder ligaments can be directed differently from</p>

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Through the back padding complex. The back filler complex includes 110 additional landmarks unknown in art. The back gasket assembly 110 includes a coupling assembly (112), allowing the safety gear to be quickly connected with the 113 D ring and keeping the D ring section available for additional safety gear, salvage, etc. The 110 back gasket assembly also includes a section Receiver 5 (114 (receiver portion) designed and arranged to receive a section of the support assembly)

<p>129 . Preferably, the receiver section 114 is integrated with the back packing manifold 110, but may be a separation component operationally connected with the back packing manifold 110. The receiver section 114 includes sides (116 (sides) a) and 116 (b) interconnecting a top (115 (top) with Back padding assembly base 110 below ring 113 D. Sides 116(a) and 116(b) include holes (117 (apertures) 10 and 117(b) through which a fastener 122 (fastener) extends to pivotally connect the support assembly to the back gasket assembly 110. The base of the back gasket assembly 110, the top (115) and the sides 116 (A) and 116 (B) of the cavity 118 (cavity) are inserted into a section of the support assembly 129. It is realized that other suitable methods of connection may also be used. A section of the support complex with the back filling complex.</p>

(support member) 129 support assembly 15 includes a support assembly

<p>130 or 130' and 150 (adjustable member), are movable relative to each other so that the length of the support complex 126 may be adjusted as desired. Preferably, the support member should be an elongated member that includes a 140 (bend) next to its second lower end (141 (second) Bottom end 140 torsion allows you to come close to the first top end</p>

20 131 (first top end) from the user's shoulder blade and the second lower end approach 141 from the waist

user, allowing the weight to be shifted more vertically downward when the user is standing upright. Preferably, the Torsion 140 incorporates two curves that angle the support member 130 at approximately 45-degree angles to create an offset of approximately 4/3 inch, helping to keep the support member 130 away from the user's back when leaning forward. It is realized that another 25 angles and other offset dimensions can be used. At least one indentation may extend longitudinally through the support member 130 to reduce its weight. The first end includes 131 holes (132 aperture) that extend through its upper and lower surfaces.

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As shown in Figures 26 and 27, hole 132 is larger adjacent to the upper surface than adjacent to the lower surface to form a seat portion (133 (seat portion). Hole 132 is designed and arranged to receive a button assembly. The button assembly includes a biasing member (134) and a button (135). button, and a 139 (securing member). These parts are illustrated in Figures 42-48. The button includes

5 115 arch (136 (head), shaft 137 (shaft), end 138 (cavity)

<p>138 It runs longitudinally through its distal end section. The shaft 137 extends through a gap in the bias member 134, the bias member 134 is caught in the hole 132 between the seat section 133 and the rear 136 of the stud 135, and the grip member connects with the end 138 of the stud 135 next to the button surface of the first end 131. The end deforms 138 From the 135th button as a rivet to hold the 135th button, and the holding member</p>

<p>10 139 is a sealing ring. The second end includes 141 holes 142 extending through their surfaces</p>

upper and lower.

As shown in Figures 18, 19, and 26-35, different lengths of support member may be used. For example, a support member may use 130' for a regular fit bra and a longer support member may use 130' for a long fit bra. Figures 31-35 show the corresponding elements of the support member

<p>15th The longest is 130'. Preferably the support member 130' is a long member that has a torsion 140' next to its second lower end 141'. The 140' twist allows the first upper end 131' to come close to the user's shoulder bone and the second lower end 141' to the user's waist, allowing the weight to be shifted more vertically downward. Preferably, like the 140' twist, the 140' twist creates an offset to help keep the 130' support member away from the user's back when leaning forward. may stretch</p>

<p>20 At least one longitudinal gap through the 130' support member to reduce its weight. The first end includes a 131' hole 132' through its top and bottom surfaces. As shown in Figures 26 and 27, the hole 132' is larger near the top surface than near the bottom surface to form a 133' seat section. The hole 132' is designed and arranged to receive a button assembly similar to that shown in Figure 17.</p>

The 150 adjustable member is shown in Figures 36-41. 25 The 150 adjustable member is generally cylindrical with a 158 bore designed and arranged to receive

Support member 130 or 130'. The adjustable organ includes 150 tops (151 (top lengths spacing .).

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A set of holes (152 apertures, 153 sides intertwining the apex 151 and the rear part (154), including a slit (154 (slot) a) extending from adjacent to a first end 155 to a second end (157) second end The first end has 155 apertures 156(a) and 156(b) in its sides. The adjustable member 150 shall be designed and arranged to slide in relation to support member 5 130 or 130'. Button 135 shall be designed from the support member 130 or 130' and arranged to extend through one

of holes 152 to adjust the length of the support assembly as desired, and notch 154a) that allows the end 138 of the button 135 to be slipped along the length when button 135 is pressed. Preferably, the holding member (139) of the button 135 is positioned outside the adjustable member 150, As shown in Figures 13 and 15. Button 135 has a first engagement position in which the support member 10 130 or 130' is biased outward by the bias member 134 and a second jaw position in which the bias member 134 is pressed.

In the engaged position, the button 135 extends through one of the holes 152 and, in the jaw position, the button 135 does not extend through one of the holes 152 and allows the support member 130 and 130' and the adjustable member 150 to slide relative to each other. As shown in Figure 10, the fastener 122 extends through holes 117A and 117B in the receiver section 114 and through holes 156A and 156B in adjustable member 15 150 to work their axial connection.

It is realized that other suitable types of control devices can be used. For example, a combination of corresponding holes may extend along the sides of the adjustable member, support member and fixture, and a quick-release pin may be used to connect them to the desired length. Other ways to make the support assembly adjustable but not limited include: An assembly with two telescopic tube members that is used

<p>20 A nut and threads are tapered to the outer member to apply radial pressure to the inner member; two members where one member includes notches, perforations, or other geometry suitable for receiving and the other member includes a feature capable of rotating about an axis perpendicular to the support assembly in a position that allows the geometry to be engaged; Telescopic assembly that uses a rotatable cam to apply pressure to the internal organ; An assembly that combines a male threaded section and a female threaded nut to shorten or lengthen the support member with a ring.</p>

<p>25 any two components; and a telescopic assembly that includes an adjusting screw or other threaded component to apply pressure to the internal organ.</p>

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The 160 couplings connect the 130' or 130' support member and the 106 pinna waist tie. The coupling includes a 160 (rear plate portion) with a first end (162 (first end) with a slot (163 (opening) and a second end (164 (second end) with a 165 (opening) slot). portion between slots 163 and 165

<p>5 It forms at least one duct or cavity (167 (cavity next to a middle portion .).</p>

168 Between the front and back panel sections 166 and 161. Headboard section includes 166 holes

169 aperture(a) and outlet (170)receptacle(a), which is a sunken section around the hole 169)a,and the backplate section includes 161 holes(aperture(b) and outlet(receptacle(170)b),which is A sunken section around the hole 169)b). The sides extend (171 (Sides and 172 .).

<p>10 Outside the front and back panel sections 166 and 161. Waistband 106 runs through hole 163, over headboard section 166, and through hole 165. Sides 171 and 172 hold Waistband 106 in position on the coupling. The coupling 160 may also be incorporated into the thigh pad of the suspender whether operationally connected to the thigh pad or integral to the thigh pad.</p>

As shown in Figure 10, the fastener (143 (fastener) connects a member

<p>15th Support 130 or 130' with coupling 160. Fastener includes 143 arch (144) head, shaft (145) shaft, and end (146) with grooved (146 (cavity) A) extending longitudinally through a section of its far end. The clamp 143 through the hole 142 in the support member and through the holes 169)a and 169b in the coupling 160. The anchor 144 of the clamp 143 fits into outlet 170 (a), and the clamping member 147 fits into exit 170 (b). It is illustrated in Figures 49-53. The end is distorted 146</p>

<p>20 of fastener 143 as a rivet for holding fastener 143, and grip member 147 is a washer. Channel or bore 167 allows pivoting of support member 130 or 130' relative to fixture 143.</p>

When turned on, the user determines whether the support assembly is of the desired length or not. To adjust its length, the user presses the button 135 to move it into a loosening position and then slides the support member 130 or 130'

<p>25 The member is adjustable to the desired length. Due to the bias of the button 135 by the bias member 134, the button will extend through the adjacent hole (152 (adjacent aperture) and the user will need to press</p>

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Button 135 each time to continue adjusting the length. This may be done before or after the user wears the sling. After the user wears the sling, the support assembly is centered around the clamp 122 in one direction and around the clamp 143 in the second direction to add comfort. For example, it allows the support complex to be rotated so that the user does not feel the resistance by the support complex when tilting from side to side.

<p>5 As shown in Figure 54, the 200 (harness) includes an embodied weight distribution complex</p>

else. In this embodiment, the support member 230 is a long member operationally connected to the back gasket assembly 210 closely to the top and bottom of the 213 (D-ring) D. A midsection of the support member 230 extending through a receiver channel (214) is twisted (receiving channel in the back pad compound 210 above episode 213 D, on each side of episode 213 D, then

<p>10 The legs intersect below the 213 D ring to form a generic triangle shape. The connection point of the legs where they intersect and extend in a forked fashion with the back padding assembly 210 is grasped with a gripping member (239 (securing member). The shank extends downward and connects operationally with the waist fascia/femur assembly 220, which includes fixing members (263 (fastening members and 265) for shank gripping). With waist belt/thigh pad 220. Connecting the back padding complex 210 interna and waist belts/padding</p>

<p>15th Thigh 220 With support member 230, weight is transferred from adjacent to the back padding assembly 210 to next to the waist belt/thigh padding 220.</p>

As shown in Figure 55, the 300 harness includes another embodied distribution pool. In this embodiment, the support member includes a first support member (A) and a second support member (330 (B) that operates Binya on bulk delivery

<p>20 Back padding 310 and waist pads/thigh pad 320 next to the path of the shoulder straps between the back padding assembly 310 and the waist harness/thigh pad 320. Support members 330(A) and 330(B) may be stitched or otherwise attached using a combination of common fasteners with back padding complex 310 and waist belts/thigh padding 320. Another option is to include pockets on or inside the thigh padding into which the support members 330(a) and 330(b) are inserted.</p>

25 plastic

Injection-molded (eg, nylon 6-6) and serves as a housing to support a biased D-ring for the spring

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<p>313 (spring biased D-ring) (for example, such as that shown in US Patent No. 7.073627) and helps guide the strap of the sling shoulder strap firmer from a hole through the 313 D-ring. Another option is that the 310 back pad assembly and members The supports 330(A) and 330(b) may be a single compound/component rather than two separate components connected together. This may also work in the other 5 way in which the support members 330(A) and 330(b) are part of the femoral padding and attached to the padding complex. back 310. Another option is that the back pad assembly 310, the thigh padding, and the support member(s) may all be a single compound/component that is incorporated into the brace.</p>

As shown in FIG. 56, the 400 (harness) includes another embodied weight distribution complex. In this embodiment, the 430 (support member) is generally of a rhombus shape 10 and the sides (430 (sides)a) and 430 (b) form a slot Between the back pad assembly 410 and the waist belt/hip pad 420 for ventilation and an optional axle close to the waist belt/hip pad 420 for better mobility. Support member 430 extends under the fiber cap near the back gasket assembly 410 and is mechanically secured with the back gasket assembly 410 near the 413 (D-ring) D with rivet, screw, etc. This may also be done through suture 15 or any other suitable fixing member.

As shown in Figure 57, the harness 500 includes another embodied weight distribution complex. In this embodiment, the support member (530) is a rod-like member with an optional axis close to one or both of the 510 back packing assembly. Waist belt / hip pad (520). The top of the support member 530 connects operationally to the back pad assembly 510 near the 513 (D-ring) D. The support member 530 may be a single member or may include a first support member with a conduit in which the second support member is movable slidable so an adjustable support member is available, and a suitable closing mechanism may interconnect the first and second support members at the desired length. For example, a second support member may include a cam or stabilizing member designed and arranged to extend through any set of indentations or holes formed in 25 first support members.

As shown in Figures 58-60, the 600 (harness) includes a distribution complex

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Another embodied weight. In this embodiment, the support member (630) is integrated with the dorsal pad assembly (610) and operationally connected with the waist belt / hip pad (620) waist belt / hip pad. An extension section (614 (extension portion) extends downward of the back gasket assembly 610 near the 613 (D-ring) D ring. 5 Although the lengthening section 614 is preferred to be integral with the back gasket assembly 610, it may be separate components that are operationally connected together by a suitable means well known in the art. What extends downward from the lengthening section 614 are channel-forming sections (614 (channel-forming portions) (a) and 614b) through which the shoulder ligaments are routed. The support member (630) includes a Y-shaped section with shanks 630 (a) and 630 (b) interconnect the canal and leg sections 630 (c), 10 which are operationally connected to the waist belt / hip pad (620) with a channel coupling (660) 667 (channel through which the leg extends) 630 (c). The support member 630 may also be positioned near the waist belt/thigh pad 620. A board member made of any suitable material may be used to strengthen the waist belt/thigh pad. The support member union and back packing assembly may be injection molded made of a durable plastic (eg nylon 6-6) but 15 may also be made of aluminium, steel, etc., depending on the level of stiffness desired.

The specification, examples, and data above provide a complete description of the manufacture and use of the composition of embodiments of the invention. Although particular avatars are explained and described here, those skilled in the art will recognize that they may substitute any arrangement, calculated to achieve the same purpose, with the particular avatars shown. This application is deemed to include any modifications or changes to the invention. Therefore, it is meant in one way that this invention is limited to 20 only the elements of protection and their equivalents.

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