1241597 玖、發明說明 【發明所屬之技術領域】 本發明係關於一種跨接裝置，特別是關於可提高由多根 導體構成的跨接裝置的跨接線成形性的跨接裝置。 【先前技術】 目前，跨接裝置是將跨接線支承裝置設置在分別設於輸 電線鐵塔的臂的左右兩側的耐拉絕緣子裝置上，在該跨接 線支承裝置的下端，設置剛性的水平件，在該水平件上添 加設置跨接線而構成的（例如，日本實開昭6 0 - 5 1 7 2 5號公 報等）。但由於使用這種水平件的跨接裝置尺寸很大，爲了 避免這點，提出利用兩個跨接線支承裝置的下部，只夾持 位於跨接線中的上線的跨接線，而位於下線的跨接線，則 用間隔套管吊起的跨接裝置。 . 然而’上述現有的跨接裝置，由於支承裝置的下端支承 在跨接線的上線上’當跨接裝置搖動時，處在上線的跨接 線的電線變形大，而位於下線的跨接線，由於通過間隔套 管支承在位於上線的跨接線上，因此，要將跨接線的形狀 保持爲規定的形狀比較困難。另外，跨接裝置施工也有問 題。 【發明內容】 本發明是爲了克服上述缺點而提出的，其目的在於要提 供一種在跨接裝置搖動時，可以抑制所產生的跨接線的電 線的變形，跨接線成形性好，而且容易施工的跨接裝置。 爲了達到上述目的，本發明跨接裝置的第一方面爲：一 312/發明說明書(補件)/92-05/92104906 1241597 種跨接裝置，它可連接由上線和下線的多根導體構成的輸 電線，該上線和下線分別延伸設置在以輸電鐵塔爲中心的 左右兩側，其特徵爲，該裝置具有：支承裝置，其上端支 承在將所述輸電線支承於所述輸電線鐵塔上的絕緣子裝置 的該輸電線上，而下端則支承在支承與該輸電線的上線相 對應的跨接線的夾鉗上；以及固定零件，其上端與支承和 所述輸電線的上線相對應的跨接線的夾鉗連接，而下端則 與支承和該輸電線的下線相對應的跨接線的夾鉗連接。 本發明跨接裝置的第二方面的特徵爲，夾鉗在與跨接線 的延伸方向垂直的方向和水平方向上，可自由轉動地設置 在固定零件上。 本發明跨接裝置的第三方面的特徵爲，在安裝於固定零 件上的支承裝置的連接零件上，設置在將該固定零件連接 在支承裝置上時使用的工具安裝孔。 【實施方式】 以下，根據附圖來說明本發明的實施形態，圖1表示一 個實施形態的跨接裝置’圖1 (a)爲以未圖示的輸電線鐵塔 爲中心的左半部的前視圖，圖1(b)爲沿著圖1(a)中的沿 X-X線所取的放大剖面圖，圖1(c)爲圖1(b)的右側視圖。 另外，以輸電線鐵塔爲中心的右半部分，與圖1 ( a)對稱。 圖中，L 1〜L4爲由4根導體組成的輸電線。當從輸電線 的伸張方向看時’輸電線L 1〜L4配置爲分別位於正方形 的頂點。在這些輸電線中’輸電線LI，L2爲位於上端的上 線，輸電線L3，L4爲位於下端的下線。 8 312/發明說明書(補件)/92-05/921 (M906 1241597 追些輸電線L 1〜L 4，通過夾鉗c丨〜c 4，連接零件K 1 〜Κ4 ’四根導體的雙聯拉伸用的固定軛鐵γ，連接零件 κ 0 ’雙聯絕緣子串Β 1，Β 2和連接零件κ 5，Κ 6，分別與圖中 沒有示出的輸電線鐵塔的臂Α連接。 圖中J 1〜J 4爲跨接線。在跨接線j〗〜j 4中，跨接線j〗，j 2 分別與上線的輸電線LI，L2對應，而餘下的跨接線J3，J4 分別與下線的輸電線L3，L4對應。這些跨接線；π〜：ί4也與 輸電線L 1〜L4同樣，配置成位於正方形的項點位置（參見 圖1 (b))。即：這些跨接線J1〜j 4，利用後述的四個懸垂 型的夾鉗2 0 a〜2 0 d，和保持規定間隔而設置的多個間隔套 管s，S…定位在上述正方形的頂點位置上。間隔套管s由 從跨接線；Π〜J 4的伸張方向看時的形狀爲呈X形的整體的 一個零件構成，在該X形的4個前端上，分別設有夾鉗部。 跨接線J1〜J 4分別固定在這些夾鉗部上。 支承裝置1的一端（上端）與固定軛鐵γ連接，另一端（下 端）與固定零件1 0連接。支承裝置1由設在固定軛鐵Y上 的多個連接零件2,2··.，上端與連接零件2,2...最下面的連 接零件2連接的梯形零件3，以及與梯形零件3的下端連 接的多個連接零件4,4·.·構成。連接零件4,4.··最下端的連 接零件4，可自由轉動地與固定零件〗〇的掛鈎部1 1連接。 如圖1(b)、（c)所示，固定零件1〇具有用於支承上線的 跨接線J 1，J 2用的上部片1 〇 a，用於支承下線的跨接線j 3，J 4 用的下部片1 Ob，和連接上部片1 0a和下部片1 〇b的連接 片 1 0c。 9 312/發明說明書(補件)/92-05/92104906 1241597 上部片1 0 a具有將支承裝置1的下部的I型連接零件4 支承在中央上部的掛鈎部1 1 ;還具有在以掛鈎部Π爲中 心，在左右兩側保持規定的等距離的凹形的夾鉗支承部 1 2 a，1 2b。在與上部片1 〇a的掛鈎部1 1相對方向的下側， 設有向下的掛鈎部1 1 ’，它可與I型連接片1 Oc連接。 下部片1 Ob具有將連接片1 〇c的下部支承在中央上部的 掛鈎部1 〇 b，還具有分別在以掛鈎部1 〇 b ’爲中心的左右兩 側，保持規定的等距離的凹形的夾鉗支承部1 2 c，1 2 d。這 些上部片1 〇a ’下部片1 〇b和連接片1 〇c的大小是這樣決 定的：應使利用分別設在各個夾鉗支承部1 2 a〜1 2 d上的懸 垂型夾鉗2 0 a〜2 0 d固定的跨接線J 1〜J 4的位置，位於規 定的正方形的頂點。 由於各個懸垂夾鉗20a〜2 Od爲同一形狀，以下，利用圖 2(a)、（b)說明夾鉗20a。在圖1(b)中，夾鉗20b,20d上， 保持與夾鉗2〇a，2〇c的對稱關係地設置在夾鉗支承部12b， 12d 上。 圖2 ( a)爲從跨接線j i的伸張方向看的夾鉗2 〇 a的正視 圖’圖2 ( b )爲圖2 ( a)的右側視圖。夾鉗2 〇 a具有支承部3 〇 和蓋3 1。支承部3 〇在裝載跨接線ji的上表面上有凹形槽 3 0 a。蓋3 1具有容納載置在支承部3 〇上的跨接線了 1的上 部的凹形槽3 1 a ’並與支承部3 〇相對設置。支承部3 〇和 蓋3 1用由一對夾緊跨接線n的螺釘螺母構成的緊固件 32a，32b 固定。 在支承部3 〇的左右兩側，在與跨接線ji的伸張方向垂 10 312/發明說明書(補件)/92-〇5/921_〇6 1241597 直的方向上分別設直在水平方向敞開的孔3 3 a，3 3 b。另外， 在安放夾鉗2 0 a的夾鉗支承部】2 a (參見圖1 ( b ))上，在與孔 3 3a,3 3b相對的位置上，分別設置孔35a，35b，使支軸 3 4 a，3 4 b插入該孔3 5 a，3 5 b中的夾鉗2 〇 a可以相對於夾鉗支 承部1 2 a自由轉動。 圖3表示跨接裝置施工步驟的說明圖。即：圖3表示將 支承裝置1的梯形零件3安裝在固定軛鐵γ上（參見圖 1 ( a))’在將各個跨接線J 1〜J 4安裝在固定零件1 〇上時， 連接梯形零件3與固定零件1 〇時的施工步驟。 即··利用支承裝置1支承跨接線：T〗〜j 4時，梯形零件3 的上部’通過連接零件2，2…安裝在固定軛鐵γ上。連接 零件4，4…的一部分安裝在梯形零件3的下部。另一方面， 跨接線J1〜通過夾甜20a〜20d，安裝在固定零件10 上，同時，支承裝置1餘下的連接零件4，4…安裝在固定零 件1 0的掛鈎部1 1上。在與掛鈎部Π最接近的連接零件4 上設置安裝孔4a，輔助零件5通過螺釘螺母5’安裝在其上。 其次，在設置於輔助零件5的前端的孔5 a和梯形零件3 之間，安裝著由圖3中的粗線所示的滑輪裝置組成的工 具，可以縮小梯形零件3的下端和固定零件1 0之間的間 隔。當設置在梯形零件3的下端的連接零件4，和設在固 定零件1 0上的連接零件4成爲可連接的狀態時，兩個連接 零件4,4連接起來。在連接以後，鬆開工具，用梯形零件 3支承固定零件1 〇。在固定零件1 0被梯形零件3支承後， 即通過固定零件1 0，用支承裝置1支承跨接線J 1〜J 4以 11 312/發明說明書(補件)/92-05/92104906 1241597 後，取出工具和輔助零件5，跨接裝置的施工完畢。另外， 在構成跨接裝置的情況下，先用支承裝置1支承上線（J 1，J 2 ) 後，再支承下線（]3 , J 4 )的施工步驟也可以。 在上述結構的跨接裝置中，由於支承裝置1的下部的跨 接線：Π〜J4的支承，可以通過能將各個跨接線的位置定位 在規定位置上的固定零件1 0，來支承上線（〗1，〗2 )和下線 (J 3 5 J 4 )，因此跨接線的成形性好。另外，因爲各跨接線J 1 〜J 4可自由轉動地支承，故即使跨接裝置搖動，也可有效 地防止電線的變形。另外，跨接裝置容易施工也是一個特 點。 另外，在上述的例子中，作爲多個導體構成的跨接線表 示了四根導體的例子，也可以是倒三角形的三根導線，垂 直形的兩根導體或6根導體等多根導體。另外，絕緣子串 也可以是1串，3串或4串等。 根據本發明的跨接裝置，因爲該裝置具有：支承裝置， 其上端支承在將所述輸電線支承於所述輸電線鐵塔上的絕 緣子裝置的該輸電線上，而下端則支承在支承與該輸電線 的上線相對應的跨接線的夾鉗上；以及固定零件，其上端 與支承和所述輸電線的上線相對應的跨接線的夾鉗連接’ 而下端則與支承和該輸電線的下線相對應的跨接線的夾鉗 連接，故跨接線成形性好。 根據本發明的跨接裝置，因爲夾鉗在與跨接線的延伸方 向垂直的方向和水平方向上，可自由轉動地設置在固定零 件上，故即使跨接裝置搖動，也可以有效地防止電線變形。 12 312/發明說明書(補件)/92-〇5/921(M9〇6 1241597 根據本發明的跨接裝置，因爲在安裝於固定零件上的支 承裝置的連接零件上，設置在將該固定零件連接在支承裝 置上時使用的工具安裝孔，故跨接裝置的施工容易進行。 【圖式簡單說明】 圖1顯示本發明的一個實施形態的跨接裝置；圖1 (a)爲 以未圖示的輸電線鐵塔爲中心的左半部分的前視圖；圖 1 ( b )爲沿者圖1 ( a)中的沿X - X軸線所作的放大剖面圖，圖 1 ( c )爲圖1 (b )的右側視圖。 圖2 (a)爲從跨接線延伸方向看的夾鉗的前視圖；圖2(b) 爲圖2 ( a)的右側視圖。 圖3爲表示跨接裝置的施工步驟的說明圖。 (元件符號說明） A 臂 C 1〜 C4 夾 鉗 K0〜 K6 連 接 零 件 J 1〜 J4 跨 接 線 L 1〜 L4 輸 電 線 S 間 隔 套 管 1 支 承 裝 置 2、4 連 接 零 件 3 梯 形 零 件 4a 安 裝 孔 5 輔 助 零 件 5 a 孔 312/發明說明書(補件)/92-05/92104906 13 1241597 10 固定零件 10a 上部片 1 Ob 下部片 10c 連接片 1 2a 〜1 2d 夾鉗支承部 20a 〜20d 夾鉗 3 0 支承部 3 1 蓋 33a 、 33b 孔 34a 、 34b 支軸 35a、 35b 孔 312/發明說明書(補件)/92-05/921049061241597 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a jumper device, and more particularly to a jumper device capable of improving the jumper formability of a jumper device composed of a plurality of conductors. [Prior art] At present, the jumper support device is provided with a jumper support device on the tensile insulator devices provided on the left and right sides of the arm of the transmission line tower, and a rigid horizontal member is provided at the lower end of the jumper support device. It is constructed by adding a jumper wire to the horizontal member (for example, Japanese Utility Model Publication No. 6 0-5 1 7 25). However, due to the large size of the jumper using such a horizontal member, in order to avoid this, it is proposed to use the lower part of the two jumper support devices to clamp only the upper jumper located in the jumper, and the lower jumper located , The jumper is lifted with a spacer sleeve. However, 'the above-mentioned existing jumper is supported by the lower end of the supporting device on the upper line of the jumper'. When the jumper is shaken, the wire of the upper jumper is deformed greatly, and the lower jumper is Since the spacer tube is supported on the jumper located on the upper line, it is difficult to maintain the shape of the jumper to a predetermined shape. In addition, there are problems with jumper construction. [Summary of the Invention] The present invention is made in order to overcome the above disadvantages, and an object thereof is to provide a wire that can suppress the deformation of the generated jumper wire when the jumper device is shaken, the jumper wire has good formability, and is easy to construct. Jumper. In order to achieve the above object, the first aspect of the jumper device of the present invention is: a 312 / Invention Specification (Supplement) / 92-05 / 92104906 1241597 kinds of jumper devices, which can connect multiple conductors made up and down A power transmission line, the upper and lower lines extending respectively on the left and right sides centered on the power transmission tower. The device is characterized in that the device includes a supporting device whose upper end is supported by a support for supporting the power transmission line on the power transmission tower. The insulator device is supported on the transmission line, and the lower end is supported on a clamp supporting a jumper corresponding to the upper line of the transmission line; and a fixed part whose upper end is supported on the jumper corresponding to the upper line of the transmission line. The clamps are connected, and the lower end is connected with the clamps supporting the jumper corresponding to the lower line of the transmission line. A second aspect of the jumper device of the present invention is characterized in that the clamp is rotatably provided on the fixed part in a direction perpendicular to the extending direction of the jumper wire and a horizontal direction. A third aspect of the jumper device of the present invention is characterized in that a connection part of a support device mounted on a fixed part is provided with a tool mounting hole for connecting the fixed part to the support device. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a jumper device according to an embodiment. Fig. 1 (a) is a front half of a left half centered on a transmission line tower (not shown). 1 (b) is an enlarged cross-sectional view taken along line XX in FIG. 1 (a), and FIG. 1 (c) is a right side view of FIG. 1 (b). In addition, the right half centered on the transmission line tower is symmetrical to FIG. 1 (a). In the figure, L 1 to L 4 are power transmission lines composed of four conductors. When viewed from the extension direction of the power line, the 'power lines L 1 to L4 are arranged at the vertexes of a square, respectively. Among these power lines, the power lines LI, L2 are upper lines at the upper end, and the power lines L3, L4 are lower lines at the lower end. 8 312 / Invention Specification (Supplement) / 92-05 / 921 (M906 1241597 Chasing some power lines L1 ~ L4, through clamps c 丨 ~ c4, connecting parts K1 ~ K4 'double conductor of four conductors The fixed yoke γ for stretching, the connecting parts κ 0 'double insulator strings B 1 and B 2 and the connecting parts κ 5 and K 6 are respectively connected to the arm A of a transmission line tower not shown in the figure. J 1 to J 4 are jumper wires. In jumper wires j to j 4, jumper wires j and j 2 correspond to the on-line power transmission lines LI and L2, respectively, and the remaining jumper wires J3 and J4 correspond to the off-line power transmission lines. The wires L3 and L4 correspond. These jumpers; π ~: ί4 are also arranged in the square entry points like the power lines L1 ~ L4 (see Figure 1 (b)). That is, these jumpers J1 ~ j 4 Using the four overhanging clamps 20 a to 2 0 d described later, and a plurality of spacer sleeves s, S, ... provided at a predetermined interval, are positioned at the apex positions of the above square. The spacer sleeve s is provided by Jumper wire; Π ~ J 4 when viewed in the direction of extension is an integral part of an X-shape, and the four front ends of the X-shape are provided with clamp portions, respectively. The jumper wires J1 to J 4 are respectively fixed to these clamp parts. One end (upper end) of the support device 1 is connected to the fixed yoke γ, and the other end (lower end) is connected to the fixed part 10. The support device 1 is provided on the fixed yoke. A plurality of connection parts 2, 2 ... on the iron Y, an upper end connected to the connection parts 2, 2 ..., a trapezoidal part 3 connected to the lowermost connection part 2, and a plurality of connection parts connected to the lower end of the trapezoidal part 3. 4,4..Construction. Connection part 4,4 ..... The lowermost connection part 4 is freely rotatably connected to the hook part 11 of the fixed part 0. As shown in Figures 1 (b) and (c) The fixed part 10 has an upper piece 10a for supporting the jumper wires J1, J2 for the upper line, a lower piece 1 Ob for the jumper wires 3, J4 for supporting the lower line, and a connection upper piece 10a and the connecting piece 10c of the lower piece 10b. 9 312 / Description of the Invention (Supplement) / 92-05 / 92104906 1241597 The upper piece 1a has a type I connecting part 4 supporting the lower part of the supporting device 1 at The upper hook part 1 1; also has a concave clamp support centered on the hook part Π and maintaining a predetermined equal distance on the left and right sides. 1 2 a, 1 2 b. On the lower side opposite to the hook portion 11 of the upper piece 10a, a downward hook portion 1 1 'is provided, which can be connected to the I-shaped connecting piece 1 Oc. The lower piece 1 Ob has hook portions 10b that support the lower portion of the connecting piece 10c at the center upper portion, and also has recessed clips that maintain predetermined equal distances on the left and right sides centered on the hook portion 10b '. Clamp support portions 1 2 c, 1 2 d. The sizes of these upper pieces 10a 'and lower pieces 10b and connecting pieces 10c are determined in such a way that the overhanging clamps 2 provided on the respective clamp support portions 1a to 12d should be used. 0 a to 2 0 d The fixed jumper wires J 1 to J 4 are located at the vertices of a predetermined square. Since the respective hanging clamps 20a to 2Od have the same shape, the clamp 20a will be described below with reference to Figs. 2 (a) and (b). In FIG. 1 (b), the clamps 20b and 20d are provided on the clamp support portions 12b and 12d while maintaining a symmetrical relationship with the clamps 20a and 20c. Fig. 2 (a) is a front view of the clamp 20a viewed from the extension direction of the jumper j i. Fig. 2 (b) is a right side view of Fig. 2 (a). The clamp 20a includes a support portion 30 and a cover 31. The support portion 30 has a concave groove 30a on the upper surface of the loading jumper ji. The cover 31 has a concave groove 3 1 a ′ for receiving the upper portion of the jumper 1 placed on the support portion 30, and is provided opposite to the support portion 30. The support portion 30 and the cover 31 are fixed with fasteners 32a, 32b composed of a pair of screw nuts for clamping the jumper wire n. On the left and right sides of the support portion 30, they are perpendicular to the extension direction of the jumper wire ji 10 312 / Invention Specification (Supplement) / 92-〇5 / 921_〇6 1241597 and are respectively opened straight in the horizontal direction. Holes 3 3 a, 3 3 b. In addition, on the clamp support part 2a (see FIG. 1 (b)) where the clamp 20a is placed, holes 35a and 35b are respectively provided at positions opposite to the holes 3 3a and 3 3b to support the shaft. 3 4 a, 3 4 b The clamps 2 0a inserted into the holes 3 5 a, 3 5 b can rotate freely with respect to the clamp support portions 12 a. FIG. 3 is an explanatory diagram showing a construction procedure of the jumper. That is, FIG. 3 shows that the trapezoidal part 3 of the supporting device 1 is mounted on the fixed yoke γ (see FIG. 1 (a)). When the jumper wires J 1 to J 4 are mounted on the fixed part 10, the trapezoidal part is connected. Construction steps for parts 3 and 10. That is, when the jumper wire is supported by the supporting device 1: T to j 4, the upper portion ′ of the trapezoidal part 3 is mounted on the fixed yoke γ through the connecting parts 2, 2... A part of the connecting parts 4, 4... Is mounted on the lower part of the trapezoidal part 3. On the other hand, the jumper wires J1 to 20a to 20d are mounted on the fixing member 10, and at the same time, the remaining connection members 4, 4 of the supporting device 1 are mounted on the hook portion 11 of the fixing member 10. A mounting hole 4a is provided in the connection part 4 closest to the hook part Π, and the auxiliary part 5 is mounted thereon by a screw nut 5 '. Next, between the hole 5a provided at the front end of the auxiliary part 5 and the trapezoidal part 3, a tool composed of a pulley device shown by a thick line in FIG. 3 is installed, which can reduce the lower end of the trapezoidal part 3 and the fixed part 1 The interval between 0. When the connection part 4 provided on the lower end of the trapezoidal part 3 and the connection part 4 provided on the fixed part 10 become connectable, the two connection parts 4, 4 are connected. After connection, loosen the tool and support the fixed part 10 with the trapezoidal part 3. After the fixed part 10 is supported by the trapezoidal part 3, that is, the jumper J 1 to J 4 are supported by the supporting device 1 through the fixed part 10, and after 11 312 / Invention Specification (Supplement) / 92-05 / 92104906 1241597, Take out the tools and auxiliary parts 5 and the construction of the jumper is completed. In addition, in the case of constructing the jumper device, the supporting device 1 may first support the upper line (J 1, J 2), and then the lower line (] 3, J 4). In the jumper device of the above structure, since the lower jumper of the support device 1 is supported by Π ~ J4, the upper line can be supported by the fixed part 10 capable of positioning the position of each jumper at a predetermined position (〗 1, 2) and offline (J 3 5 J 4), so the formability of the jumper is good. In addition, since each jumper wire J 1 to J 4 is rotatably supported, even if the jumper device is shaken, deformation of the electric wire can be effectively prevented. In addition, the ease of construction of the jumper is another feature. Moreover, in the above-mentioned example, the example of four conductors is shown as a jumper composed of a plurality of conductors, and three conductors of an inverted triangle, two conductors of a vertical shape, or a plurality of conductors such as six conductors may be used. In addition, the insulator string may be one string, three strings, or four strings. According to the jumper device of the present invention, the device has a supporting device whose upper end is supported on the transmission line of the insulator device which supports the transmission line on the transmission line tower, and the lower end is supported on the support and the transmission line. On the clamp of the jumper corresponding to the upper line of the electric wire; and the fixing part whose upper end is connected to the clamp of the jumper corresponding to the support and the upper line of the transmission line, and the lower end is connected to the support and the lower line of the transmission line The clamp connection of the corresponding jumper wire makes the jumper wire formable. According to the jumper device of the present invention, since the clamp is rotatably provided on the fixed part in the direction perpendicular to the extension direction of the jumper wire and the horizontal direction, even if the jumper device is shaken, the electric wire can be effectively prevented from being deformed. . 12 312 / Invention Specification (Supplement) / 92-〇5 / 921 (M9〇6 1241597) The jumper device according to the present invention is provided on the connection part of the supporting device mounted on the fixed part, and is provided on the fixed part. The tool installation hole used when connecting to the support device makes the construction of the jumper easy. [Brief Description of the Drawings] FIG. 1 shows a jumper according to an embodiment of the present invention; FIG. The front view of the left half of the transmission line tower is shown in the center; Figure 1 (b) is an enlarged sectional view taken along the X-X axis in Figure 1 (a), and Figure 1 (c) is Figure 1 ( b) Right side view. Figure 2 (a) is a front view of the clamp viewed from the extension of the jumper wire; Figure 2 (b) is a right side view of Figure 2 (a). Figure 3 shows the construction steps of the jumper device (Illustration of component symbols) A arm C 1 ~ C4 clamp K0 ~ K6 connecting parts J 1 ~ J4 jumper wire L 1 ~ L4 power line S spacer bushing 1 support device 2, 4 connecting part 3 trapezoidal part 4a Mounting hole 5 Auxiliary parts 5 a hole 312 / Explanation (Supplement) / 92-05 / 92104906 13 1241597 10 Fixing parts 10a Upper piece 1 Ob Lower piece 10c Connecting piece 1 2a to 1 2d Clamp support 20a to 20d Clamp 3 0 Support 3 1 Cover 33a, 33b holes 34a, 34b Support shaft 35a, 35b hole 312 / Invention Manual (Supplement) / 92-05 / 92104906