1300754 九、發明說明： 【發明所屬之技術領域】 本發明係關於將物體繫接於人之肢體之一區域的繫接裝 置，更特定而言，該物體可為一運動器材或配件，例如一 身體板或衝浪板，或者為射箭運動員之一保護元件。 【先前技術】 使一個人（尤其在其手腕處)與一物體或動物連接之必要 性處處存在。例如人們已知之用於家養動物之帶子以及滑 雪及劍術方面之繫帶。此種必要性出現於航海運動方面， 尤其為使用身體板或衝浪板類型板子之滑行運動。實際 上，若自板子上掉下，使用者能夠迅速收回板子係極重要 的0 文件FR.2_167.343描述一種用於衝浪板之安全繫接，此 種繫接包括一條纜繩，纜繩之第一端固定於板子上，而纜 繩之另-端具有-可拆卸腳環，使用者可將此·腳環固定於 籲 使用者的其中一個腳躁周圍。特定而言，該可拆卸腳環係 由一具有小鉤及小環之自鎖式繫帶構成，該帶子之上表面 之一部分具有小鉤子，另-部分之下表面具有小環。、 根據文件FR.2.167.343之概念基礎，其亦㈣可能預見 不:定是在腳踩處進行而是可在使用者—肢體之其它區域 進行之繫接’例如胳膊或手腕。 文件FR.2· 167.343所主張之解決方法之 、乃忒之主要不便在於 自鎖帶在肢體區域周圍就位。若為 。丨蜾則此種就位除黨 要使用者能使用其二隻手外不t ^ ^ + ' 亍Μ曰出現特定的困難。若為胳 113071.doc 1300754 膊或手腕，則此種就位就更困難，因為與所述胳膊或手腕 相對應的肢體之手幾乎不能使用。 每當需要借助一唯一的手使一物體與一肢體之一區域連 接時均會以相同的方式遇見此種就位之困難，尤其為關於 上肢之一個區域時。1300754 IX. Description of the Invention: [Technical Field] The present invention relates to a tying device for attaching an object system to a region of a human limb, and more particularly, the object may be a sports equipment or accessory, such as a Body board or surfboard, or protection element for one of the archers. [Prior Art] The necessity of attaching a person (especially at the wrist) to an object or animal exists everywhere. For example, the belts for domestic animals and the ties for snow and swords are known. This necessity arises in the nautical sport, especially for the use of body board or surfboard type gliding. In fact, if it falls off the board, the user can quickly retrieve the board's extremely important 0 file FR.2_167.343 describes a safety tie for the surfboard, which includes a cable, the first of the cable The end is fixed to the board, and the other end of the cable has a detachable foot ring that the user can fix around one of the ankles of the user. In particular, the detachable ankle ring is constructed of a self-locking tether having a small hook and a small loop having a small hook on a portion of the upper surface and a small loop on the lower surface of the other portion. According to the concept of document FR.2.167.343, it is also (4) that it may be foreseen: it is to be carried out at the foot but to be tied to the user's other parts of the limb, such as the arm or wrist. The main inconvenience of the solution proposed by document FR.2 167.343 is that the self-locking band is placed around the limb area. If yes. In other words, in addition to the party, the user has to use his two hands and does not have a specific difficulty. This is more difficult if the head is 113163.doc 1300754 or wrist, because the hand of the limb corresponding to the arm or wrist is almost impossible to use. Whenever an object needs to be attached to a region of a limb by means of a unique hand, the difficulty of encountering such a position is encountered in the same manner, especially with respect to an area of the upper limb.
在射箭方面，當射箭運動員希望裝備一保護胳膊之元件 時就會遇見同樣的困難。其一之此種元件位於握住弓之手 柄並因此在射箭過程中承受弓弦傷害危險的前臂上。其一 之此種可稱為護腕之保護元件預期係施用於前臂内側。在 前臂上之固定藉由繃帶或安裝於該元件端部之傳統連接件 實現。人們瞭解’由射箭運動M本人來使該元件在前臂上 就位並非一種極容易的操作。 【發明内容】 本發明之目的係提出一種克服上述不便之裝置。 其為一種將一物體繫於人之肢體之一區域的裝置，該 置之特徵包括： a)一繫接元件，該元件包括一個一種形狀記憶材料之片 體’该片體能夠自該片體為直線形之不穩定的第—位置遇 渡至一片體自身捲曲之穩定的第二位置，並且片體之長= 係經判定而可保證在第二位置裹緊該肢體區域之：： 半。 — b)將該物體固定於該繫接元件上之部件。 因此，使用者僅需用一隻手抓住包括在其第—位置之片 體之連接元件，並使該片體過渡至其第二位置，例如以〜 H3071.doc 1300754 定的速度將該片體施用於該肢體區域上，其方式使該片體 在肢體上之衝擊可導致片體產生自身捲曲之變形，從而使 該片體至少部分裹緊肢體。該片體之變形可藉由使用者之 手指在片體上施加簡單的壓力而實現。因此該種就位尤其 簡單、迅速。In archery, the same difficulty is encountered when an archery player wishes to equip a component that protects the arm. One such component is located on the forearm that holds the handle of the bow and thus the risk of bowstring injury during archery. One such protective element, known as a wristband, is intended to be applied to the inside of the forearm. The fixation on the forearm is achieved by a bandage or a conventional connector mounted to the end of the element. It is understood that it is not an extremely easy operation to place the component on the forearm by the archery M. SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that overcomes the above inconvenience. It is a device for attaching a system to a region of a human limb, the features of which include: a) a tying element comprising a sheet of shape memory material from which the sheet can be The first position that is unstable in a straight line meets to a stable second position of the body's own curl, and the length of the body = is determined to ensure that the limb region is wrapped in the second position:: half. — b) the part that fixes the object to the tie element. Therefore, the user only needs to grasp the connecting member of the sheet body including the first position with one hand and transition the sheet to its second position, for example, at a speed of ~ H3071.doc 1300754. The body is applied to the limb region in such a manner that the impact of the sheet on the limb can cause the sheet to deform itself to curl, thereby causing the sheet to at least partially wrap around the limb. The deformation of the sheet can be achieved by applying a simple pressure on the sheet by the user's finger. Therefore, this kind of position is especially simple and rapid.
對於某些應用，藉由繫接元件而使物體在肢體上之簡單 就位對物體之使用而言可經證明係足夠的。特定言之，將 該裝置用於繫接射箭保護元件即為此種情況。 但對於其它應用，如一張力可能施加於物體與繫接元件 之間，此種簡單的就位可能就無法證明為足夠。在此種情 況下，该裝置即包括將繫接元件鎖定於該片體第二位置之 部件二該等鎖定部件之作用係完成片體裹緊在肢體區域周 圍所貫現之就位，因此使該固定更保險。 ;在一實施變型中，片體被-保護套包裹，例如-泡洙材 料之外套，尤其為氯丁橡膠，或在一種紡織材料上之層狀 泡沫材料之外套。 曰 在貝轭變型中，片體之長度係經判定而使得繫接元 之兩端可在第二位置重疊。在此種情況下，較佳者，鎖 -:之叹置係用於實現兩個該重疊自由端之鎖定。例如彳 定部件可由具有小釣及小環之組裝元件構成，該等組裝; 件^別位於保護外套兩自㈣處之-表面及另-表面。 :片體之長度僅可容許在其第二位置裹緊肢體區域之_ $鎖疋部件可由片體兩自由端之延長部分支持，@ p連結該保護套。其特別可為兩個具有組裝部件之⑽ 113071.doc 1300754 部分。 需要注意，在該等庫用φ 时、 ^ *應用中賦予片體之功能主要為便於 该裝置在肢體區域周圍之就位 忧用者可僅用一隻手極其 容易地實現鎖定部件之操作。 八 較佳者，該形狀記憶材料片體係一鋼製金屬片。但亦可 為一塑料片體。 在一待連接之區域為肘部與肩部之門 I，、仴谇之間的胳膊、手腕或腳For some applications, the simple seating of the object on the limb by attaching the element may prove to be sufficient for the use of the object. In particular, this is the case when the device is used to attach an archery protection element. However, for other applications, such as a force may be applied between the object and the tie element, such a simple seating may not prove sufficient. In this case, the device includes means for locking the tie member to the second position of the sheet, and the function of the locking members completes the engagement of the sheet around the limb region, thereby This fix is more secure. In an embodiment variant, the sheet is wrapped by a protective sleeve, for example a sleeve of foam material, in particular neoprene, or a layered foam on a textile material.曰 In the yoke variant, the length of the sheet is determined such that the ends of the splicing elements can overlap at the second position. In this case, preferably, the lock-: slap is used to achieve the locking of the two overlapping free ends. For example, the setting member may be composed of an assembled component having a small fishing line and a small ring, and the assembly is located at the surface of the protective casing from the (four) surface and the other surface. The length of the sheet can only be allowed to wrap the limb region in its second position. The locking member can be supported by the extension of the two free ends of the sheet, and @p links the sleeve. It can in particular be two (10) 113071.doc 1300754 parts with assembled parts. It should be noted that the function of the sheet in the application of φ when the library is used is mainly to facilitate the placement of the device around the limb region. The user can easily operate the locking member with only one hand. Preferably, the shape memory material sheet system is a steel sheet metal. But it can also be a plastic sheet. In the area to be connected, the elbow and shoulder door I, the arm, wrist or foot between the 仴谇
躁的實施方式中，片體之長度為2(M〇cm。 在需要於該片體裹緊肢體區域之第二位置使用繫接元件 之鎖定部件的應用中，兹發現尤其可在進行滑行航海運動 方面使用該繫接裝置。在此種情況下，待繫接之物體一方 面包括在其上固定有繫接元件的身體板或衝浪板，另一方 面包括-連接元件，其—端與繫接元件連接，另一端藉由 固定部件與本發明之繫接元件連接。 曰 在-貫施變型中，其中該物體為一用於沿肢體縱向放置 之長形元件，該裝置較佳包括兩個朝向物體端部固定之繫 接兀件。該物體特別可為一用於射箭之胳膊保護元件。 較佳者’在此種情況下，該包括一貼靠胳膊下表面的物 體具有一上表面，特別係保護用者，兩個表面之間設有一 些可穿過繫接元件之孔眼。 【實施方式】 本發明之裝置用於實現將某個物體繫在使用者之一肢體 之一區域，例如手腕、肘部與肩部之間的胳膊、前臂或腳 踝，該物體尤其為一身體板或衝浪板或一用於射箭之護 113071.doc 1300754 腕。 在航海運動方面，常常用”Ieash"一 板子之間的連接裝置卜 1表不—此種區域與 ，裝置包括-能夠固定於區域2上之繫接元件3，— 固疋於板子上之繫接元件 ° 敏拉一从 運接繫接兀件3盥該 繫接兀件之軟性連接元件4〇 根據本發明之特徵，繫接元件3包括—由带 材料製成之片體5,片體5有一苴為 "°心 你要n ^ /、馮直線形之不穩定的第一 -该片體自身捲曲之穩定的第二位置。 气體t身為已知的，例如人們已知—種二十厘米形 體，此種片體在其第一穩定位置為直線形，且在其 ;:鋼二：位置以極小的體積完全自身捲曲。此種片體-其:為塑料。、’但亦可為具有相同特徵之任何其它材料，尤 稍=形的且不穩定的第一位置，片體橫截面之形狀係 第'中出現之形狀。藉由沿箭頭F施加-力而 :二位L過渡至第二位置’實現片體5之局部展平，此 叮破展不知疋的苐_位詈夕承你朴丄 位置之千衡。猎由使片體重新伸直而 使其自第二位置過渡至篦一 站甘“ 又至η立置’此可使其回復其直線形 狀’其中包括其橫向彎曲。 為在區域2處改善片體5與使用者皮膚之間的接觸 係關於金屬片體時，繫接元件3亦包括—用: 保護套6。該保護套應足夠柔軟，以適應片體之不同變 形’無論是自第-位置過渡至第二位置時之自身捲曲，還 113071.doc 1300754 是其在第一位置時之曲線形。 種纺織材料或發泡材料尤其為氣丁橡膠 或者由—層在紡織材料上之發泡材料製成。 I接元件3能夠岐於軟性連接元件4h此·定可直 . 由—連接元件7進行，其一方面藉由焊接或任 口疋於片體上，並且固定於軟性元件4上。 • 二5之長度:係經判定而可使其在第二位置裹緊肢體圓 之至少—半。但較佳者’如圖2所示，片體5顯然可 裹緊整個區域2。 所欲者係使片體5施加至區域2之塵力足以㈣㈣ 3在該區域周圍可右对金/ 。此將取決於片體相對區域2周 I之長度L。此亦取決於片體本身之捲曲力。 實際應用中，為避免繫接元件3自區域2職之危險，其 係在該所述繫接上，加入能约保證片體5保持於其第二位 , 置之適當鎖定部件。 在所示之第一裝置1的例子中，鎖定部件8包括一爪9及 具有小環與小鉤之自鎖元件1〇、u。爪9將保護套6延長至 '體5之第一自由端㈣外。具有小鉤或小環之第一元件 U設在朝向片體5之另，之保護套6上，在保護套6之 上表面6a上’即第一繫接 繁接凡件3在第二位置朝向肢體外測 彎曲的表面上。爪9包括且古f p „ 匕祜具有小％及小鉤之第二繫接元件 1 〇，其係位於爪9之下表面9a上。 繫接元件3在使用者腕部2周圍之就位以如下方式實現。 113071.doc 1300754 使用者用一隻手在片體5之第一端5a處抓住繫接元件3，同 時知道其係朝向此由軟性連接元件4之固定而定位之第一 端。使用者在繫接元件3上施以朝向手腕2之某程度之力， 使局部產生之衝擊破壞片體5在第—位置之不穩定平衡， 並使該片體5自身捲曲。手腕之存在妨礙此種捲曲，因而 使該片體以某程度之力貼靠手腕。 -旦繫接元件3纏繞在手腕2之周圍，使用者可將其放In the embodiment of the crucible, the length of the sheet body is 2 (M〇cm. In the application of the locking member using the fastening element in the second position where the sheet body is wrapped around the limb region, it is found that the sliding navigation is particularly possible. The tying device is used for sports. In this case, the object to be spliced comprises, on the one hand, a body panel or a surfboard on which the splicing element is fixed, and on the other hand comprises a connecting element, the end-to-end The connecting member is connected, and the other end is connected to the connecting member of the present invention by a fixing member. In the embodiment, wherein the object is an elongate member for longitudinally placed along the limb, the device preferably comprises two a fastening member that is fixed toward the end of the object. The object may in particular be an arm protection element for archery. Preferably, in this case, the object comprising a lower surface of the arm has an upper surface. In particular, the protector has some apertures between the two surfaces that can pass through the strapping element. [Embodiment] The device of the present invention is used to implement an object system in one of the limbs of the user, for example. The arm, forearm, or ankle between the wrist, elbow, and shoulder. This object is especially a body board or surfboard or a shield for archery 113071.doc 1300754. In terms of sailing, Ieash" The connection between the boards is shown in Figure 1 - the area includes the attachment element 3 that can be attached to the area 2, and the attachment element that is fixed to the board is sensitive to the connection. The soft connecting element 4 of the connecting piece is according to the features of the present invention, the connecting element 3 comprises a sheet 5 made of a strip material, and the sheet 5 has a & 苴^ /, von linear unstable first - the stable second position of the body itself. The gas t body is known, for example, a twenty centimeter shape is known, such a body The first stable position is linear, and is completely curled by itself in a very small volume at the position of: steel: the sheet - which is: plastic, 'but can be any other material having the same characteristics, a slightly deformed first position, the shape of the cross section of the sheet The shape that appears in '. By applying the force along the arrow F: the two L transitions to the second position' to achieve the partial flattening of the sheet 5, this 叮 不 不 不 不 不 詈 詈 詈 詈 詈 詈 詈 丄 丄 丄 丄 丄The position of the scale. Hunting by re-stretching the sheet to make it transition from the second position to the station, "and to the η stand-up, which can make it return to its straight shape" including its lateral bending. When the contact between the sheet 5 and the user's skin is improved in the region 2, the strapping member 3 also includes: a protective sleeve 6. The protective sleeve should be soft enough to accommodate different deformations of the sheet. Regardless of the self-curling when transitioning from the first position to the second position, 113071.doc 1300754 is a curved shape in the first position. The textile material or foaming material is especially a gas rubber or a layer in the textile Made of foamed material on the material. The I-connecting element 3 can be mounted on the soft connecting element 4h. The connecting element 7 can be carried out by means of a connecting element 7, which is welded or slid onto the sheet and fixed to the flexible element 4. • Length of two 5: It is determined that it can be wrapped in at least half of the limb circle in the second position. Preferably, however, the sheet 5 is apparently wrapped around the entire area 2 as shown in FIG. The desired force is such that the dust force applied to the region 2 by the sheet 5 is sufficient (4) (4) 3 to be right-handed to the gold/ around the region. This will depend on the length L of the relative area of the sheet 2 weeks. This also depends on the curling force of the sheet itself. In practical applications, in order to avoid the danger of the tie member 3 from the position 2, it is attached to the tie, and the addition can ensure that the sheet 5 is held in its second position, and the appropriate locking member is placed. In the illustrated example of the first device 1, the locking member 8 includes a pawl 9 and self-locking elements 1 , u having small loops and small hooks. The pawl 9 extends the protective sleeve 6 to the outside of the first free end (four) of the body 5. The first element U having a small hook or a small ring is disposed on the protective cover 6 facing the other of the sheet body 5, and the first surface of the protective cover 6 is on the surface 6a. The curved surface is measured outwardly from the extremity. The claw 9 includes and has a small % and a small hook of the second fastening element 1 〇 which is located on the lower surface 9a of the claw 9. The coupling element 3 is placed around the user's wrist 2 113071.doc 1300754 The user grasps the tie element 3 at the first end 5a of the body 5 with one hand, while knowing that it is oriented towards the first end of the position by which the flexible connecting element 4 is fixed. The user exerts a certain amount of force on the fastening member 3 toward the wrist 2, so that the locally generated impact destroys the unstable balance of the sheet 5 at the first position, and causes the sheet 5 to curl itself. This kind of curling is hindered, so that the piece is pressed against the wrist with a certain degree of force. Once the fastening element 3 is wrapped around the wrist 2, the user can put it on the wrist.
開’並抓住爪9。使用者將處在爪9内表面以上之帶小環或 鉤之元件難在處於保護套6上表面“上之帶小鉤或小 環之第二元件11上，如圖2所示。 咸可明瞭’爪9之存在可補償潛在使用者手腕或肢體其 它區域圓周長度之差別。 當然可能可考慮一種鎖定方法，在此種方法中，片體之 長度L可使其兩個自由端在第二位置重疊，且該等鎖定部 件係位於該兩個自由端處，以保證其保持於重疊狀態。 在X第展置中，為消除具有小釣與小環之自鎖元件污 染之危險，可能可使用兩個具有組裝部件之端帶部分作為 鎖定部件，且較佳射調節兩個㈣部分之間的張力者。 在该第一裝置中，赋予片轉 賦予片體之作用主要為便於實現元件 3在肢體之區域2周圍之就位，-旦該繫接元件3在該區域 周圍就位’❹者就可僅用—隻手極其容易地實現鎖定部 件之操作。 之 在-作為非限定例子給出之確定實施方式中，待 區域為肘部與肩部之間的胳膊、手腕或腳踝，片體 113071.doc -12- 1300754 為20及30 cm之間。 圖5所不之第二裝置為—實現射箭護腕13與使用者之前 臂14連接的裝置。 射箭護腕13為一貼在箭卷7 + 士 乃贴在“14内表面14a上之長形保護元 、，且其剌於在射料㈣其^與弓弦有任何接觸。續 護腕13包括一貼靠前臂14之内表㈣及一保護外表面… 在圖5所示之實例中，太仅上兹 、 例T在保護外表面16設有二條互相平行 並犬起於外表面1 6上之磨招册1 7 ^ 上之磨相▼ 17。在弓弦於護腕13上摩捧 之情況下’接觸在磨損帶17上發生，且此種接觸之衝擊可 分散於貼靠前臂14之内表面15之整個面積上。 繫接元件18係以使該繫接元件18可穿過貼靠内表面㈣ 保”蒦外表面1 6之間的方式穿過兩個設在護腕i 3中之孔眼 19 〇 在圖5中’護腕13在前臂14上之繫接僅採用-繫接元件 18。但根據護腕之大小’尤其為其長度，較佳可沿護腕之 端部部分設置兩個繫接元件18。在待繫接之物體為一用於 沿肢體縱向設置之長形元件的所有情況下均是如此。 【圖式簡單說明】 第一裝置及第二裝置實施 明’第一裝置為使用者之 該裝置包括一形狀記憶材 前臂上之射箭護腕之繫接 精由閱頃以下由對附圖所示之 例所構成之描述可更佳瞭解本發 手臂與身體板之間的連接裝置， 料之片體，而第二裝置為使用者 裝置，其中： 圖 1為第一裝置繫在手腕上之前 的透視示意圖，其片體 H3071.doc -13- 1300754 處於其第一位置； 圖2為位於手腕周圍之第一裝置之剖面示意圖； 圖3為沿圖1之III-III軸線之橫剖面圖； 圖4為沿圖2之IV-IV軸線之縱剖面圖；及 圖5為具有第二裝置之前臂側視示意圖。 【主要元件符號說明】Open ' and grab the claw 9. The user places the element with a small ring or hook above the inner surface of the claw 9 on the upper surface of the protective cover 6 on the second element 11 with a small hook or small ring, as shown in Fig. 2. It is clear that the presence of the 'claw 9' can compensate for the difference in the circumferential length of the wrist of the potential user or other areas of the limb. Of course, a locking method may be considered, in which the length L of the piece may have its two free ends in the second The positions overlap, and the locking members are located at the two free ends to ensure that they remain in an overlapping state. In the X-throwing, in order to eliminate the risk of contamination of the self-locking elements with small fishing and small rings, it may be possible The end belt portion having the assembled component is used as the locking member, and the tension between the two (four) portions is preferably adjusted. In the first device, the function of imparting the sheet to the sheet is mainly to facilitate the realization of the member 3. Positioning around the area 2 of the limb, once the tie element 3 is in position around the area, the operation of the locking member can be achieved extremely easily with only one hand. Determined implementation In the formula, the area to be the arm, wrist or ankle between the elbow and the shoulder, the piece 113071.doc -12- 1300754 is between 20 and 30 cm. The second device in Figure 5 is - to achieve archery protection The wrist 13 is connected to the user's front arm 14. The archery wristband 13 is a long-shaped protection element attached to the arrow 14 + snail on the inner surface 14a of the 14th, and its 剌 is in the shot (4) ^ Have any contact with the bowstring. The continuation wristband 13 includes an inner surface (four) against the forearm 14 and a protective outer surface. In the example shown in Fig. 5, too only, the example T is provided on the outer surface 16 of the protective outer surface 16 and is parallel to each other. Grinding on the outer surface 16 on the 1 7 ^ grinding phase ▼ 17. In the case where the bowstring is gripped on the wristband 13, the contact occurs on the wear strip 17, and the impact of such contact can be dispersed over the entire area of the inner surface 15 of the forearm 14. The tethering element 18 is such that the tethering element 18 can pass through the two apertures 19 disposed in the wristband i3 in a manner that abuts against the inner surface (4) of the outer surface 16 of the wristband i 3 in FIG. The attachment of the wristband 13 to the forearm 14 uses only the tethering element 18. However, depending on the size of the wristband, particularly its length, it is preferred to provide two tethering elements 18 along the end portion of the wristband. The object to be connected is in all cases for the elongate member disposed along the longitudinal direction of the limb. [Simplified description of the drawing] The first device and the second device implement the device in which the first device is the user. The connection of the archery wristband on the forearm of a shape memory material is better understood by the description of the example shown in the drawing below, and the connection device between the hair arm and the body board is better understood. Body, and the second device is a user device, wherein: Figure 1 is a perspective view of the first device before the wrist, the body H3071.doc -13-1300754 in its first position; Figure 2 is located around the wrist Schematic diagram of the first device; Figure 3 is the axis III-III along Figure 1. Figure 4 is a longitudinal sectional view taken along line IV-IV of Figure 2; and Figure 5 is a side elevational view of the arm with a second device.
1 繫接裝置 2 肢體區域 3 繫接元件 4 連接元件 5 片體 5a 片體之第一端 5b 片體之另一端 6 保護套 6a 保護套之上表面 7 連接元件 8 鎖定部件 9 爪 9a 爪之下表面 10 自鎖元件 11 自鎖元件 13 護腕/保護元件 14 前臂 14a 前臂之内表面 113071.doc -14· 1300754 15 支承下表面 16 保護上表面 17 磨損帶 18 繫接元件 19 孔眼 113071.doc - 15-1 tying device 2 limb region 3 tying element 4 connecting element 5 body 5a first end of the body 5b the other end of the body 6 protective sleeve 6a upper surface of the protective sleeve 7 connecting element 8 locking part 9 claw 9a claw Lower surface 10 Self-locking element 11 Self-locking element 13 Bracer/protective element 14 Forearm 14a Inner surface of the forearm 113071.doc -14· 1300754 15 Supporting the lower surface 16 Protecting the upper surface 17 Wear strip 18 Tightening element 19 Eyelet 113071.doc - 15-