TW538168B - Apparatus for moving stitchable material in a sewing machine - Google Patents

Abstract

An apparatus for moving stitchable material in a sewing machine comprises a pair of wheels including upper and lower wheels for clamping the stitchable material threbetween and moving the stitchable material, a power transfer shaft rotating intermittently in a direction in synchronism with a sewing machine drive shaft, a switch-over gear 41 coupled with the power transfer shaft for transmitting the rotation of the power transfer shaft, a gear shift system for moving the switch-over gear 41 leftward or rightward along a guide shaft 47 of a gear box 45 mounted aroud the switch-over gear 41 with a reverse lever 51 installed at one side of the sewing machine, and a transmission system which includes a forward gear 35 mounted at one side from the switch-over gear 41 and a reverse gear 34 mounted opposite to the forward gear 35 and transmits the rotation of one of the gears 34 and 35 engaged with the switch-over gear to the lower wheel 33.

Description

538168 五、發明說明（1) 本發明係與縫紉 一種具有反轉齒輪而 者。 一般傳統的縫切 動縫紉材料之裝置， 不能驅動該下輪反轉 為一限於正向運轉的 前轉動。 缺乏可 非常不便， 達到相同目 為此， 機内移動縫紉材料之裝置有 可輕易反轉縫匆機内縫匆材 =設：種巧亡：：輪以夾持並帶 k種衣置亚揲反轉機制，538168 V. Description of the invention (1) The present invention relates to sewing with a reverse gear. Generally, the conventional device for sewing and cutting sewing materials cannot drive the lower wheel to reverse to a forward rotation limited to the forward rotation. Lack can be very inconvenient, to achieve the same purpose. To this end, the device for moving sewing materials inside the machine can easily reverse the sewing mechanism,

，/、原因係控制該下輪义P 單向離合哭，妗口处的雜合器 口口 故/、此T動縫紉材料向 逆轉之裝 使用者只 的。 一在韓國 有案的專 問題之相 案揭示之 0 f f i c e 登 |己 供解決此一 該申請 及正面視圖 2，對於使用縫紉機的人而言，自是 月匕將缝紉材料反置或來回跑針兩次以 專利局Korean Industrial Property 利申请件No· 1988-6246揭示了 一項可 關技術。 縫紉機係如第1、2圖所示之縱向剖視 嗎翻i 1圖所不，该傳統縫約機具有一驅動轴1、一設於該 赫q %、及固設於該驅動轴1中央部位之扣 鏈6相、结人該扣與1過齒帶7架設於一臂軸5上之扣The reason is that the control of the next wheel P is one-way clutch crying, the mouth of the hybrid device at the mouth, so /, this T moving sewing material is reversed, the user only. A special case filed in South Korea reveals 0 ffice registration | has been provided to solve this application and front view2, for people who use sewing machines, it is the moon dagger that reverses the sewing material or runs the needle back and forth The patent office Korean Industrial Property applied for No. 1988-6246 twice to reveal a relevant technology. The sewing machine is shown in a longitudinal section as shown in Figs. 1 and 2. The conventional sewing machine has a driving shaft 1, which is disposed at the center of the driving shaft 1, and is fixed at the center of the driving shaft 1. The 6-phase buckle of the part, the buckle that knots the buckle, and the buckle that is set on the arm shaft 5 with 1 toothed belt 7

4, 〇 以口 乃一扣鏈4則係與一經由齒帶1 0而固設於一低 平田δ —端之扣鐽Q 軸1同步轉 相結合。由是，臂軸5及低軸8可隨該驅動 往返卩if—\且一針頭N可隨該臂軸5每轉動一圈而上下 MB上用以牛φ v次，其中，該針頭N於下降時係可***機台 標缝切材料之支柱MA上之針孔MA1。4, 〇 The mouth is a buckle chain 4 which is combined with a buckle Q axis 1 synchronously fixed on a low Hirata δ-end via a toothed belt 10. Therefore, the arm shaft 5 and the low shaft 8 can go back and forth with the drive 卩 if— \ and a needle N can be used up and down on the MB for v times with each rotation of the arm shaft 5, where the needle N is When descending, it can be inserted into the pin hole MA1 on the pillar MA of the machine's standard cutting material.

第6頁 538168 五、發明說明（2) 為透過該低軸8值、褒隹 包含：一用以自兮、^鸡動能量起見，此傳統縫紉機尚 21 ; 一用以接受^傳送驅動能量之第一動力傳輪車由 給一低輪33之繁 一動力傳輸軸21送出之動力且轉送 輸軸之間且用以；㈡輪=…設置於該兩動力傳 之離合器25。=文f弟二動力傳輸軸23正/反轉動方向 37，該第一驅動斗趴1傳統縫紉機另設有一第一驅動齒輪 jj 鈿”该低輪33連結，另端與該第二動 ::=二二端相結合’…藉該第二動力傳輪㈣ ，、疋μ低輪33之正/反轉動方向。又，圖中之敖 字13, 15係分別表示一搖轴及-中間齒輪。 之數 $、f上所述之傳統裝置，非但在動力傳輸機構方面需要 、過该第一，二動力傳輸軸2丨，23配置多個齒輪，且制 中尚需不少配套零件，製作時間也相對較長。 衣 再者，該設於兩動力傳輸軸21，23之間用以改變低輪 33轉動方向之離合器25，可能因長期使用而磨損或操作^ 負荷過重致使零件滑脫而發生誤動作。 ^ 本發明之主要目的在於消除上述各項缺點並提供一種 組構簡單用於移動縫紉機内缝紉材料之裝置。Page 6 538168 V. Description of the invention (2) In order to pass the low axis 8 value, 褒 隹 contains: one for the energy of the chicken, ^ chicken motion energy, this traditional sewing machine is still 21; one for receiving ^ transmission drive energy The first power transmission vehicle is powered by a power transmission shaft 21 that feeds a low wheel 33 and is transmitted between the transmission shafts and used for this purpose; = The second driving force of the power transmission shaft 23 in the forward / reverse direction 37, the first driving bucket 1 is conventionally provided with a first driving gear jj 钿 ", the lower wheel 33 is connected, and the other end is connected to the second driving :: = Combination of two and two ends' ... By the second power transmission wheel ㈣, 疋 μ, the forward / reverse rotation direction of the low wheel 33. In addition, the characters Ao and 15, in the figure respectively represent a rocking shaft and-intermediate gear The traditional devices described in the above $ and f, not only in terms of power transmission mechanism, need to be equipped with multiple gears for the first and second power transmission shafts 2 丨, 23, and many matching parts are still needed in the manufacturing process. The time is relatively long. In addition, the clutch 25, which is located between the two power transmission shafts 21 and 23, and is used to change the rotation direction of the low wheel 33, may wear out or operate due to long-term use. Malfunction occurs. ^ The main object of the present invention is to eliminate the above disadvantages and provide a device with a simple structure for moving sewing materials in a sewing machine.

本發明之次要目的在於提供一種用於移動縫紉機内縫 切材料之裝置’其係可於縫匆操作中避免誤動作發生及在 反轉時防止因離合器滑脫而產生噪音等現象。 X 為達成以上目標，本發明之裝置備有一對用以箝制及 移動縫劫材料之轉輪外’尚包括有：一可在同方向與一縫 538168 五、發明說明（3) 紉機之驅動軸作間歇性同步轉動之動力傳輸軸系統；一與 該動力傳輸軸系統銜接以改變其正/反轉動方向之齒輪轉 換系統；及一與該齒輪轉換系統連結以供傳送該動力傳輸 軸系統轉動之傳輸系統。 如第3圖所示本發明移動缝紉機内缝紉材料用裝置之 立体分解圖，本裝置包括有：一對含有上輪及下輪用以夾 持並帶動縫紉材料之滾輪；一隨缝紉機驅動軸作同步間歇 性轉動之動力傳輸軸；一與該動力傳輸轴結合以改變其轉 動方向之轉向齒輪4 1 ; 一手動操控縫幼機側面.反向桿5 1以 推動該轉向齒輪4 1沿一環設於其周邊之齒輪箱4 5導軸4 7左 右活動之齒輪轉換系統；及一傳輸系統，其係包括有一設 置於該轉向齒輪41 一端之正向齒輪35及一設於該正向齒輪 35對面之反向齒輪34，且係用以傳送該兩齒輪之一與轉向 齒輪41契合者之轉動至該低輪33。 該齒輪轉換系統包括有：設置於缝紉機一側且可上下 作弧形轉動之前述反向桿5 1 ; —與該反向桿5 1連結以供傳 輸其轉動之多段式滑桿單元及鉸鏈單元；固設於該滑桿單 元一端之前述齒輪箱45 ; —以左右可動方式架設於該齒輪 箱4 5之轉向齒輪座4 3 ;及一與該滑桿單元一端連結用以推 動該轉向齒輪座4 3在該齒輪箱4 5内部左右活動之聯結單 元。 該滑桿單元及鉸鏈單元包含：一與該反向桿5 1之一端 連結之反向桿軸5 2 ; —反向凸輪5 3係與該反向桿軸5 2之另 一端連接且隨其轉動；一在垂直方向可動之第一連桿54係A secondary object of the present invention is to provide a device for moving the inner cutting material of a sewing machine ', which can prevent malfunctions during sewing operations and noises caused by clutch slippage during reverse rotation. X In order to achieve the above objectives, the device of the present invention is provided with a pair of runners for clamping and moving the quilted materials. It also includes: one can be in the same direction and one 538168. 5. Description of the invention (3) Drive of the sewing machine A power transmission shaft system for intermittent synchronous rotation of the shaft; a gear conversion system connected to the power transmission shaft system to change its forward / reverse rotation direction; and a gear conversion system connected to the gear conversion system for transmitting the rotation of the power transmission shaft system Transmission system. As shown in Fig. 3, an exploded perspective view of a device for sewing materials in a mobile sewing machine according to the present invention. The device includes: a pair of rollers including an upper wheel and a lower wheel for holding and driving the sewing material; A power transmission shaft that rotates intermittently synchronously; a steering gear 4 1 combined with the power transmission shaft to change its rotation direction; a manual control of the side of the sewing machine. A reverse lever 5 1 to push the steering gear 4 1 along a ring A gear conversion system around the gear box 4 5 guide shaft 4 7 which moves around; and a transmission system including a forward gear 35 provided at one end of the steering gear 41 and an opposite side of the forward gear 35 The reverse gear 34 is used to transmit the rotation of one of the two gears and the steering gear 41 to the low gear 33. The gear conversion system includes: the aforementioned reverse lever 5 1 which is arranged on one side of the sewing machine and can be turned up and down in an arc; a multi-segment slider unit and a hinge unit connected to the reverse lever 51 for transmitting its rotation; ; The aforementioned gear box 45 fixed to one end of the slider unit;-a steering gear holder 4 3 mounted on the gear box 45 in a left-right movable manner; and one end connected to the slider unit to push the steering gear holder 4 3 A coupling unit that moves left and right inside the gear box 4 5. The slider unit and hinge unit include: a reverse lever shaft 5 2 connected to one end of the reverse lever 51;-a reverse cam 5 3 is connected to the other end of the reverse lever shaft 52 and follows it Rotation; a first link 54 which is movable in the vertical direction

538168538168

五、發明說明（4) 與該反向 且其左右 5 6 ; 一設 鉸鏈銷5 7 前端相接 該聯 在該齒輪 連接而形 段61之另 與該第二 銷之第三 听d之一端連結；一設置於該第一連桿5 4底部 轉之滑桿 兩側係可璟 於該滑桿56 而上下轉動 且水平方向 結單元進而 箱4 5 ~側之 成該滑桿單 端銜接並固 連結段63另 連結段6 5。 繞一滑桿鉸鏈銷5 5上下旋 前後兩段可環繞 柄5 8 ;及^一與該滑桿曲柄5 8 二連桿59。 底端且其 之滑桿曲 可動之第 包括有： 鉸鏈銷6 2 元；一第 設於該轉 端連接且 滑桿曲柄 第一連結段61係具有一位 其一端係與該第二連桿5 9 該第一連結 央部；及一 二連結段63係與 向齒輪座43之中 在該齒輪箱4 5另側設有鉸鏈 此外’該齒輪箱4 5之内另設有一用以導正該轉向齒輪 座43之導轴47 ’及一套設在該導軸47上以提供恢復力予該 轉向齒輪41之彈簧48。 其认’ 5亥傳輸系統包括有：一設於該轉向齒輪4 1上方 且可旋轉之傳輪軸3 6 ; —架設於該傳輸軸3 6 一端可與該轉 向會輪41契合而作正向旋轉之前進齒輪35 ; 一與該前進齒 輪3 5對設且亦可與該轉向齒輪4丨契合而作反向旋轉之倒退 齒輪34 ;及一與該傳輸軸36連結以驅動該低輪33使依選定 方向旋轉之驅動轴3 8。 又’該傳輸轴36之另一端套設有一第一驅動齒輪37 ’ 而該驅動軸38之底端則配置一與該第一驅動窗輪37契合之 第二驅動齒輪3 9。再者，該驅動軸3 8之頂端設有，玎與該 低輪33契合之輪盤驅動齒輪4〇。V. Description of the invention (4) opposite to the reverse and its left and right 5 6; a hinge pin 5 7 is provided at the front end which is connected to the gear and the segment 61 is connected to the third pin d of the second pin Connection; two sides of a slide bar arranged at the bottom of the first link 54 can be turned on the slide bar 56 and can be rotated up and down, and the unit is horizontally connected to the box 4 5 to the side to form a single-end connection of the slide bar and The solid connection section 63 is additionally connected to the section 6 5. It can be rotated up and down around a slide bar hinge pin 5 5 and the front and rear sections can surround the handle 5 8; and ^ one and the slide bar crank 5 8 and two links 59. The bottom end and its movable slide bar include: a hinge pin 62 yuan; a first connection section 61 provided at the turning end and connected with the slide bar crank 61 has one end connected to the second link 5 9 The first connecting central part; and one or two connecting sections 63 and the gear holder 43 are provided with a hinge on the other side of the gear box 4 5 In addition, 'the gear box 4 5 is provided with another for guiding A guide shaft 47 ′ of the steering gear holder 43 and a spring 48 provided on the guide shaft 47 to provide a restoring force to the steering gear 41. It recognizes that the transmission system includes: a rotatable transfer shaft 3 6 disposed above the steering gear 41;-one end mounted on the transmission shaft 3 6 can be matched with the steering wheel 41 for forward rotation A forward gear 35; a reverse gear 34 which is opposite to the forward gear 35 and can also be engaged with the steering gear 4; and a reverse gear 34 that rotates in the reverse direction; and a transmission shaft 36 connected to drive the low gear 33 Drive shaft 3 8 rotating in the selected direction. Also, a first driving gear 37 is sleeved at the other end of the transmission shaft 36, and a second driving gear 39 is fitted at the bottom end of the driving shaft 38 to fit the first driving window wheel 37. Furthermore, a top of the drive shaft 38 is provided with a disk drive gear 40 that fits the low wheel 33.

^38168 五、發明說明（5) 以下擬就本發明 作及實施效果詳加說明^。縫紉機内縫紉材料用裝置之操 且，由於本發明之壯 機：之缝幼材料反轉機J最大的不同在，縫劫 法等，不再贅述。 目似的結構或操作方 k供使用者手動及Μ & 機主体所支撐之主軸一端呆乍之該反向桿51係裝設於縫紉 桿軸=向桿51如第3圖所示下壓時，該反向 動’隨後，固設於該反向凸i53 = 3凸tf:同向連 帶動該滑桿56圍繞滑桿鉸鏈銷55做順時針轉動;下移而 才日曲ίί 1該滑桿曲柄58則藉該滑桿56之旋轉而環繞該滑 二a 乂鏈銷57做2^時針轉動，並同時將固接於該滑桿曲 柄58珂端之第二連桿59如第3圖所示向右拉扯。 二17亥向右拉扯的第一連桿5 9隨即帶動該第一連結段6 1以 叙鏈銷6 2為中心如第3圖所示沿順時針方向轉動，同時， 搭接於該第一連結段6丨底端之第二連結段63被推向左側。 被推向左侧的第二連結段6 3再將利用螺絲6 4固結其上的轉 向齒輪座43推向該齒輪箱45。 從而，如第5圖所示，當該轉向齒輪41向左運動而與 -亥傳輸轴3 6之反向齒輪3 4咬合時，套設於該導軸4 7外部之 彈百4 8被該齒輪箱4 5所壓縮。該傳輸軸3 6係與該反向齒輪 34同時旋轉並帶動該第一驅動齒輪3 7及與之垂直咬合之第 二驅動齒輪3 9。藉由該第二驅動齒輪3 9之轉動，透過該驅^ 38168 V. Description of the invention (5) The following is a detailed description of the operation and effect of the invention ^. The operation of the device for sewing materials in the sewing machine is the same as the sewing machine of the present invention: the biggest difference between the sewing material reversing machine J, the sewing method, etc., will not be described again. The apparent structure or operator k is provided for the user to manually and one end of the main shaft supported by the machine body. The reverse lever 51 is installed on the sewing lever shaft = the down lever 51 as shown in FIG. 3 The reverse movement 'is then fixed to the reverse protrusion i53 = 3 convex tf: the slide bar 56 is driven in the same direction to rotate clockwise around the slide bar hinge pin 55; it moves downwards and then tunes. 1 The slide bar crank 58 rotates around the slide bar 2 by the rotation of the slide bar a. The chain pin 57 rotates 2 ^ clockwise, and at the same time, the second link 59 fixed to the end of the slide bar crank 58 is as the third Pull right as shown. The first connecting rod 5 9 pulled to the right on the 17th drive the first connecting section 6 1 to rotate clockwise in the center of the chain pin 6 2 as shown in FIG. 3, and at the same time, overlaps with the first The second connecting section 63 at the bottom of the connecting section 6 丨 is pushed to the left. The second linking section 6 3 pushed to the left pushes the steering gear holder 43 fastened thereto with the screw 6 4 toward the gear box 45. Therefore, as shown in FIG. 5, when the steering gear 41 moves to the left and meshes with the reverse gear 3 4 of the transmission shaft 36, the bullet 100 set on the outside of the guide shaft 4 7 is blocked by the Gearboxes 4 and 5 are compressed. The transmission shaft 36 is simultaneously rotated with the reverse gear 34 and drives the first driving gear 37 and a second driving gear 39 which is vertically engaged with the first driving gear 37. By the rotation of the second driving gear 39, through the driving

第10頁 538168 五、發明說明（6) 動軸3 8可驅使該輪盤麵 33反轉。 % 當該反向桿51復饮時 料正常前進之狀態下， 導軸4 7上之彈簧4 8之恢復 座4 3之轉向齒輪4 1從與含夕 前進齒輪35之咬合位置^ 如上所述，本發明之 置係可將一驅動機構簡化 器之組合時間。又，本發 可避免逆轉時機構之滑脫 對於熟悉本技術領域 當可運用於其他不同的方 例證而非闬以限制其實施 受申請專利範圍各申請項 衛輪4〇 轉動，及進I? 亦即如第4圖所示 ^向齒輪座43被套言; 推向右側，結果， f向齒輪3 4咬合位置 開始縫切操作。 用以移動縫紉機内、縫 為 連結糸統而得以 明尚具有防止誤動作 現象故可降低反向操 的人士而言，本發明 式，故本發明所提之 範圍者，惟任何引伸 之節制。 驅使該低輪 處於縫紉材 ，於齒輪箱4 5 该轉向齒輪 挪移到與該 、切材料之裝 大幅削減機 之功效及因 作噪音。 的基本理念 實施例僅供 之變化仍應 538168 圖式Μ早說明 第1圖係一傳統縫紉機之縱剖側視圖； 第2圖係該傳統缝紉機之縱剖前視圖； 第3圖係本發明移動缝紉機内縫紉材料用裝置之立体 分解圖； 第4圖係第3圖之組合圖，顯示缝紉材料處於向前推進 之狀態；及 第5圖係第3圖之組合圖，顯示缝紉材料處於向後倒退 之狀態。Page 10 538168 V. Description of the invention (6) The rotating shaft 38 can drive the wheel surface 33 to reverse. % When the reverse lever 51 resumes the normal feeding state, the spring 4 on the guide shaft 4 7 the restoring seat 4 3 of the steering gear 4 1 from the meshing position with the forward gear 35 The arrangement of the present invention can simplify the combination time of a driving mechanism. In addition, the present invention can avoid the slippage of the mechanism when reversing. For those familiar with the technical field, it can be applied to other different examples instead of restricting its implementation. The rotation of the guard wheel 40 of each application in the scope of the patent application is not restricted. That is, as shown in FIG. 4, the ^ -direction gear holder 43 is covered; it is pushed to the right, and as a result, the f-direction gear 34 is engaged with the sew position to start the sewing operation. For the purpose of moving the inside of the sewing machine and sewing to connect the system, it is clear that for those who still have the ability to prevent misoperation and can reduce the reverse operation, the present invention has the scope of the present invention, but any extended restraint. Drive the low wheel to the sewing material, and the steering gear in the gear box 4 5 is moved to the equipment that cuts the material, which greatly reduces the efficiency and noise of the machine. The basic idea of the embodiment is only to be changed. The pattern M should be explained earlier. Figure 1 is a longitudinal sectional side view of a conventional sewing machine. Figure 2 is a longitudinal sectional front view of the conventional sewing machine. Figure 3 is a movement of the invention. 3D exploded view of the device for sewing materials in the sewing machine; Figure 4 is a combined view of Figure 3 showing the sewing material is in a forward state; and Figure 5 is a combined view of Figure 3 showing the sewing material in a backward direction Of the state.

【圖式標號說明】 1 ------驅動軸 2 ------飛輪 3 ------扣鏈 4 ------扣鏈 5 ------臂軸 6 ------扣鏈 7 ------齒帶 8 ------低軸[Illustration of figure number] 1 ------ drive shaft 2 ------ flywheel 3 ------ chain 4 ------ chain 5 ------ arm shaft 6 ------ Chain 7 ------ Toothed belt 8 ------ Low shaft

9 ------扣鏈 10 ------齒帶 21------第一動力傳輸轴 23------第二動力傳輸軸 25------離合器 33------低輪9 ------ Chain 10 ------ Toothed belt 21 ------ First power transmission shaft 23 ------ Second power transmission shaft 25 ------ Clutch 33 ------ Low Round

第12頁 538168 圖式簡單說明 34 ------反向齒輪 35 ------正向齒輪 3 6------傳輸軸 37------驅動齒輪 3 8------驅動軸 39 ------第二驅動齒輪 40 ------輪盤驅動齒輪 41 ------轉向齒輪 43------轉向齒輪座 45------齒輪箱 4 7------導軸 51 ------反向桿 52 ------反向桿車由 5 3------反向凸輪 54------第一連桿 5 5------滑桿鉸鏈銷 5 6------滑桿 5 7------滑桿曲柄鉸鏈銷 5 8------滑桿曲柄 59------第二連桿 61------第一連結段 6 2------较鍵銷 63 ------第二連結段 64 ------螺絲Page 12 538168 Simple illustration of the diagram 34 ------ reverse gear 35 ------ forward gear 3 6 ------ transmission shaft 37 ------ drive gear 3 8- ----- Drive shaft 39 ------ Second drive gear 40 ------ Roulette drive gear 41 ------ Steering gear 43 ------ Steering gear seat 45- ----- Gearbox 4 7 ------ Guide shaft 51 ------ Reverse lever 52 ------ Reverse lever car by 5 3 ----- Reverse cam 54 ------ first connecting rod 5 5 --------- slider hinge pin 5 6 ------ slider 5 7 ------ slider crank hinge pin 5 8-- ---- Slider crank 59 ------ Second link 61 ------ First connection section 6 2 --------- Compared with key pin 63 ------ Second connection Segment 64 ------ Screw

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Claims (1)

538168 _案號901Q3992_年月日__ 六、申請專利範圍 反向旋轉之倒退齒輪；及 一與該傳輸軸連結以驅動該低輪使依選定方向旋轉 之驅動軸。 2. 如申請專利範圍第1項所述之裝置，其中該聯結單 元包括有： 一第一連結段係具有一位在該齒輪箱一側之较鏈 銷，其一端係與該滑桿單元連接； 一第二連結段係與該第一連結段之另端銜接並固設 於該轉向齒輪座之中央部；及538168 _Case No. 901Q3992_Year Month Date__ VI. Scope of patent application Reverse gears rotating in the reverse direction; and a drive shaft connected to the transmission shaft to drive the low wheel to rotate in the selected direction. 2. The device according to item 1 of the scope of patent application, wherein the coupling unit comprises: a first coupling section having a relatively chain pin on one side of the gear box, and one end of which is connected to the slider unit A second connecting section is connected with the other end of the first connecting section and is fixed at the central part of the steering gear seat; and 一與該第二連結段另端連接且在該齒輪箱另側設有 鉸鏈銷之第三連結段。 3. 如申請專利範圍第2項所述之裝置，其中設有： 一導軸用以引導該齒輪箱内部之轉向齒輪座；及 一套設於該導軸之上而可提供該轉向齒輪恢復力之 彈簧。A third connecting section is connected to the other end of the second connecting section and a hinge pin is provided on the other side of the gear box. 3. The device according to item 2 of the scope of patent application, which is provided with: a guide shaft for guiding the steering gear seat inside the gear box; and a set provided on the guide shaft to provide the restoration of the steering gear Spring of force. 第16頁Page 16