TWI414659B - And a sewing machine having an upper decorative sewing mechanism - Google Patents
And a sewing machine having an upper decorative sewing mechanism Download PDFInfo
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- TWI414659B TWI414659B TW096143403A TW96143403A TWI414659B TW I414659 B TWI414659 B TW I414659B TW 096143403 A TW096143403 A TW 096143403A TW 96143403 A TW96143403 A TW 96143403A TW I414659 B TWI414659 B TW I414659B
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- upper decorative
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B63/00—Devices associated with the loop-taker thread, e.g. for tensioning
- D05B63/02—Loop-taker thread take-up levers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
- D05B29/08—Presser feet comprising relatively-movable parts
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
本發明係適用於例如3支針之多支針偏平縫縫紉機等者，關於藉由複數條針線與線鉤線及上側裝飾線形成針跡之具有上側裝飾縫機構的縫紉機。The present invention is applicable to a sewing machine having an upper decorative stitch mechanism in which stitches are formed by a plurality of needle threads, a thread hook line, and an upper decorative thread, for example, a multi-needle flat seam sewing machine of three needles.
此種具上側裝飾縫機構的縫紉機，以往，例如日本特公昭61－11636號公報、日本特開平4－354979號公報、或日本特公平7－38914號公報等所揭示，已提出具備如下構件之許多案者，即，具備：複數支針，並列於與餵布方向交叉之方向且設成上下往復移動自如；壓布件；上側裝飾線導件，固定支撐於機臂且將上側裝飾線從上方朝該壓布件下之針跡形成區域導引；上側裝飾線線鉤，具有鉤住位於該上側裝飾線導件與該壓布件之間之上側裝飾線部分的鉤線部，且設為沿該複數支針之並列方向進出退入驅動移動自如，以使鉤於該鉤線部之上側裝飾線送出至與餵布方向交叉之方向；及上側裝飾線切斷裝置，於縫製結束時該針達到上死點或其附近，且，於該上側裝飾線線鉤移動至進出端之狀態，將跨越該上側裝飾線線鉤之鉤線部與該上側裝飾線導件之間被拉緊之上側裝飾線部分鉤住後，拉向斜後方上方並切斷，且，保持該被切斷之上側裝飾線之線端。In the prior art, for example, Japanese Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Many cases, that is, have: a plurality of pins, juxtaposed in a direction crossing the feeding direction and arranged to reciprocate up and down; a pressing member; an upper decorative wire guide fixedly supported on the arm and the upper decorative line The upper side is guided toward the stitch forming region under the pressing member; the upper decorative wire hook has a hooking portion hooking the upper decorative line portion between the upper decorative wire guide and the pressing member, and is provided In order to move in and out along the parallel direction of the plurality of pins, the movement is freely movable so that the hook is attached to the upper side of the hook line to the direction of the feeding direction; and the upper decorative line cutting device is at the end of the sewing. The needle reaches a top dead center or a vicinity thereof, and is tensioned between the hook line portion of the upper decorative wire hook and the upper decorative wire guide in a state where the upper decorative wire hook is moved to the entry and exit end. Above Rear trim line portion is hooked, pulling upward and rearward obliquely cut, and, holding the wire ends are cut on the side of the decorative lines.
根據具備如上述構成構件之上側裝飾縫機構的縫紉機，係構成為：於通常之縫製動作時使上側裝飾線(透過上側裝飾線導件從壓布件下之針跡形成區域延伸於右斜方上方)伴隨上側裝飾線線鉤之進出移動，被該線鉤之鉤線部鉤住而拉向左方，於該線鉤到達進出端時，使複數支針中並列方向左側之針下降移動於上側裝飾線線圈內(形成於該鉤線部與該上側裝飾線導件之間)，且使並列方向右端之針下降移動於上側裝飾線線圈之近側，於其後之該線鉤之退入移動時，從該鉤線部釋放之上側裝飾線藉由供應至該右端針之右端針線被壓下於壓布件下之針跡形成區域，縫合於布上面，以形成既定之針跡。According to the sewing machine including the upper side decorative seam mechanism of the above-described constituent member, the upper decorative thread is transmitted through the upper decorative line guide from the stitch forming region under the pressing member to the right oblique direction during the normal sewing operation. The upper part is moved in and out by the hook line of the upper side of the hook line, and is pulled to the left by the hook line of the line hook. When the line hook reaches the entrance and exit end, the needle of the left side of the plurality of stitches is lowered and moved to the left side. In the upper decorative wire coil (formed between the hook wire portion and the upper decorative wire guide), and the needle at the right end of the parallel direction is lowered and moved to the near side of the upper decorative wire coil, and the wire hook is retracted thereafter When the movement is moved, the upper side decorative line is released from the hook line portion, and the needle thread forming region under the pressing member is pressed by the right end needle thread supplied to the right end needle, and is sewn on the cloth to form a predetermined stitch.
然而，上述各專利公報等所提案之習知之具有上側裝飾縫機構的縫紉機，均以下述動作為前提，即，上側裝飾線於上側裝飾線線鉤之進出移動時被鉤於該鉤線部拉向左方，於該線鉤到達進出端時藉由確實且穩定地形成上側裝飾線套環於該鉤線部與上側裝飾線導件間，重複從該線鉤之鉤線部釋放之上側裝飾線受右端之針線壓下於壓布件下之針跡形成區域的動作，以能連續地確實、順利形成既定之針跡，換言之，通常之縫製動作係以能從第1針之縫製動作正常進行為前提，對於結束目前之布之縫製，開始下一布之縫製時之最初針跡形成動作(以下，稱為第1針之縫製動作)完全沒有考慮。However, the conventional sewing machine having the upper decorative sewing mechanism proposed in each of the above-mentioned patent publications is based on the premise that the upper decorative thread is hooked to the hook line when the upper decorative thread hook is moved in and out. To the left, when the hook of the hook reaches the entrance and exit end, the upper side trim loop is formed between the hook line portion and the upper trim line guide by the positive and stable stitches, and the upper side decoration is released from the hook line portion of the hook. The thread is pressed by the needle thread at the right end under the stitch forming region under the pressing member, so that the predetermined stitch can be formed continuously and surely, in other words, the sewing operation can be normally performed from the sewing operation of the first stitch. In the case of the sewing of the current cloth, the initial stitch forming operation (hereinafter referred to as the first stitch sewing operation) at the time of starting the sewing of the next cloth is completely ignored.
即，沒有顧及於第1針之縫製動作時上側裝飾線未確實地鉤於上側裝飾線線鉤之鉤線部之情形。因此，若於第1針之縫製動作時產生上側裝飾線未鉤於上側裝飾線線鉤之鉤線部之情形時，不會形成上側裝飾線纒合於針線之既定之針跡，產生所謂跳線，不僅第1針，第2針以後之縫製動作時亦未能形成既定之針跡，其結果，有產生縫製不良品之可能性。In other words, the case where the upper decorative thread is not reliably hooked to the hook portion of the upper decorative thread hook is not taken into consideration in the sewing operation of the first stitch. Therefore, when the upper decorative thread is not hooked to the hook line portion of the upper decorative thread hook during the sewing operation of the first stitch, the predetermined stitch of the upper decorative thread to the needle thread is not formed, and the so-called jump occurs. In addition to the first stitch, the thread does not form a predetermined stitch during the sewing operation after the second stitch, and as a result, there is a possibility that a defective product is produced.
於習知之具有上側裝飾縫機構的縫紉機，不能以第1針之縫製動作形成既定之針跡而產生跳線的理由，參照主要部分之圖解詳細說明如下。In the conventional sewing machine having the upper decorative sewing mechanism, the reason why the jumper cannot be formed by forming the predetermined stitch by the sewing operation of the first stitch, and the explanation of the main part will be described in detail below.
即，於對前一布之縫製作業結束之縫製完成時，如圖7(A)所示，上側裝飾線3部分(跨越上側裝飾線線鉤1之鉤線部1a與固定支撐於機臂(省略圖示)之上側裝飾線導件2之線導引用長孔2a之間被拉緊)被上側裝飾線切斷裝置4之可動刀4a鉤住使其拉向斜後方上方而切斷，且，該被切斷之上側裝飾線3之線端被保持，且被供應至複數支(表示3支)針5L、5M、5R(並列於與餵布方向交叉之方向)的針線6L、6M、6R，藉由省略圖示之周知之線切斷裝置於壓布件下方被切斷，視情形將切斷後之針線6L、6M、6R之端部6l、6m、6r移至針5L、5M、5R之側方上方，以免該端部6l、6m、6r因沿壓布件上面略水平移動之針線刮器(wiper，因周知省略說明)從壓布件孔脫出，而阻礙下一布之***。此時，並列之針5L、5M、5R中插通於右端針5R之針孔之針線6R與上側裝飾線3的關係，如圖9(A)所示，使右端之針線6R之端部6r以自由端之狀態位於上側裝飾線3之後方，即，布20之移送方向X之後方。That is, when the sewing of the sewing operation of the preceding cloth is completed, as shown in Fig. 7(A), the upper decorative line 3 portion (the hook line portion 1a spanning the upper decorative wire hook 1 and the fixed support to the arm ( Illustrated in the drawing, the line guide long holes 2a of the upper side decorative wire guide 2 are tightened by the movable blade 4a of the upper decorative wire cutting device 4, and are pulled obliquely rearward and upward, and are cut. The line end of the cut-off upper side decorative wire 3 is held, and is supplied to a plurality of needles 6L, 5M, 5R (which are arranged in a direction crossing the feeding direction) 6R is cut under the pressing member by a well-known wire cutting device (not shown), and the end portions 61, 6m, and 6r of the needles 6L, 6M, and 6R after the cutting are moved to the needles 5L and 5M, as the case may be. Above the side of the 5R, so that the end portions 6l, 6m, 6r are not removed from the pressing member hole by a needle scraper (wiper, as explained hereinafter) which moves slightly along the upper surface of the pressing member, thereby hindering the next cloth. insert. At this time, the relationship between the needle thread 6R inserted into the pinhole of the right end needle 5R and the upper decorative line 3 among the parallel stitches 5L, 5M, and 5R is as shown in Fig. 9(A), and the end portion 6r of the right end needle thread 6R is made. The state of the free end is located behind the upper decorative line 3, that is, after the transfer direction X of the cloth 20.
以此狀態使縫紉機動作而開始下一布20之縫製時，如圖7(B)所示，該上側裝飾線線鉤1從其進出端位置退入移動，且安裝於針固定件7之上側裝飾線道8與針5L、5M、5R同步下降移動，接著，如圖7(C)所示，該上側裝飾線線鉤1到達其退入端後向針5L、5M、5R之並列方向進出移動，且針5L、5M、5R及上側裝飾線道8到達其下死點後上升移動。此時，因針線6L、6M、6R之端部6l、6m、6r(於壓布件下方被切斷，或切斷後被移至針5L、5M、5R之側方上方)係位於壓布件上方而呈無張力之自由狀態，故如圖9(B)所示，隨同針5L、5M、5R之下降移動針線6L、6M、6R之自由端部6l、6m、6r被拉至上側裝飾線3之拉緊位置下方。When the sewing machine is operated in this state and the sewing of the next cloth 20 is started, as shown in Fig. 7(B), the upper decorative thread hook 1 is retracted from the position at the entrance and exit end thereof, and is attached to the upper side of the needle fixing member 7. The decorative lane 8 moves downward in synchronization with the needles 5L, 5M, and 5R, and then, as shown in Fig. 7(C), the upper decorative thread hook 1 reaches the retracted end and enters and exits in the direction of the needles 5L, 5M, and 5R. After the movement, the needles 5L, 5M, 5R and the upper decorative lane 8 reach their bottom dead center and then move upward. At this time, the end portions 61, 6m, and 6r of the needle threads 6L, 6M, and 6R (cut under the presser member or moved to the side of the needles 5L, 5M, and 5R after being cut) are located in the presser member. The upper side is in a free state without tension, so as shown in Fig. 9(B), the free ends 6l, 6m, 6r of the moving needles 6L, 6M, 6R are pulled to the upper decorative line with the lowering of the needles 5L, 5M, 5R. 3 under the tension position.
其次，該上側裝飾線線鉤1進出移動時，若能以其鉤線部1a鉤住上側裝飾線3部分則沒有問題，但實際上，由於針5L、5M、5R及上側裝飾線線鉤1之動作時機的關係(設定為使其能形成良好之針跡)，於鉤線部1a鉤住上側裝飾線3部分之前，上側裝飾線道8已上升，且由於隨同該上側裝飾線道8之上升，上側裝飾線3部分，會如圖7(C)所示，被拉至上側裝飾線線鉤1之鉤線部1a之移動途徑之稍微上方，故上側裝飾線3部分無法鉤於上側裝飾線線鉤1之鉤線部1a，或即使能鉤住，其鉤住之機率亦非常不穩定，當該上側裝飾線線鉤1到達進出端時，如圖7(D)所示，無法在鉤線部1a與上側裝飾線導件2之間形成上側裝飾線套環，且伴隨針5L、5M、5R之上升，右端之針線6R之端部6r，如圖9(C)所示，保持著被拉下至上側裝飾線3之下方部之狀態，被捕捉於下線鉤線用線鉤19後之針線6R之端部6r則成為位於上側裝飾線3前方之關係。又，為要使該圖7(D)之狀態更明瞭，以圖8表示圖7(D)之放大狀態。Next, when the upper decorative thread hook 1 is moved in and out, there is no problem if the hook line 1a can be hooked on the upper decorative line 3, but actually, the needles 5L, 5M, 5R and the upper decorative thread hook 1 The relationship of the timing of the action (set such that it can form a good stitch), the upper decorative lane 8 has risen before the hook portion 1a hooks the portion of the upper decorative line 3, and since the upper decorative lane 8 Ascending, the upper decorative line 3 portion is pulled slightly above the hooking line portion 1a of the upper decorative thread hook 1 as shown in Fig. 7(C), so that the upper decorative line 3 portion cannot be hooked to the upper side decoration. The hook line portion 1a of the thread hook 1 or the hook is unlikely to be hooked even if it can be hooked. When the upper decorative thread hook 1 reaches the entrance and exit end, as shown in Fig. 7(D), it cannot be An upper decorative wire loop is formed between the hook line portion 1a and the upper decorative wire guide 2, and the end portion 6r of the right end needle thread 6R is held as shown in FIG. 9(C) as the needles 5L, 5M, and 5R rise. The state of being pulled down to the lower portion of the upper decorative line 3 is captured at the end portion 6r of the needle thread 6R after the lower hook wire hook 19 3 become the front of the decorative lines on the upper side relationship. Further, in order to make the state of FIG. 7(D) clearer, the enlarged state of FIG. 7(D) is shown in FIG.
若成為該圖8所示之狀態，即使針5L、5M、5R下降而使針線6L、6M、6R之端部6l、6m、6r以壓布件下部連接於布20而被保持，上側裝飾線3仍繼續維持位於左端及中間之針線6L、6M之端部6l、6m之近處，且位於右端之針線6R之端部6r後方的狀態，於下一次針5L、5M、5R之下降移動時不能藉由右端之針線6R使上側裝飾線3部分壓下於壓布件下方。因此，雖能形成針線6L、6M、6R與下線鉤線之針跡，但不能形成纒住上側裝飾線3之既定之針跡，不僅第1針之縫製動作，此後之縫製動作時亦不能形成既定之針跡，而會有產生縫製不良品之問題。In the state shown in Fig. 8, even if the needles 5L, 5M, and 5R are lowered, the end portions 61, 6m, and 6r of the needle threads 6L, 6M, and 6R are held by the lower portion of the presser member to be attached to the cloth 20, and the upper decorative line is held. 3, while maintaining the vicinity of the end portions 6l, 6m of the needle thread 6L, 6M at the left end and the middle, and the state behind the end portion 6r of the needle thread 6R at the right end, when the next needle 5L, 5M, 5R descends, The upper decorative wire 3 cannot be partially pressed under the pressing member by the right end needle thread 6R. Therefore, although the stitches of the needle threads 6L, 6M, and 6R and the lower thread hook line can be formed, the predetermined stitches that catch the upper side decorative thread 3 cannot be formed, and not only the sewing operation of the first stitch but also the sewing operation thereafter cannot be formed. With established stitches, there will be problems with sewing defects.
特別是，即使針線之切斷端部未被移至側方上方之情形，若使用具有伸縮性之針線6L、6M、6R時，因縫製結束時被切斷之針線6L、6M、6R收縮使其端部6l、6m、6r變短，故針線6L、6M、6R與上側裝飾線3部分之位置關係成為圖7(D)及圖9(C)所示之狀態，造成使上側裝飾線3壓下至壓布件下之針跡形成區域更困難，產生於第1針及以後之縫製動作時完全不能形成既定之針跡的問題。In particular, even when the cut ends of the needle thread are not moved to the side above, when the needle threads 6L, 6M, and 6R having stretchability are used, the needle threads 6L, 6M, and 6R that are cut at the end of the sewing are shrunk. Since the end portions 6l, 6m, and 6r are shortened, the positional relationship between the needle threads 6L, 6M, and 6R and the upper decorative wire 3 portion is in the state shown in Figs. 7(D) and 9(C), resulting in the upper decorative line 3 It is more difficult to press down the stitch forming region under the pressing member, which causes a problem that a predetermined stitch cannot be formed at all during the first stitching and the subsequent sewing operation.
本發明有鑒於上述實情而為，其目的在於提供一種具有上側裝飾縫機構的縫紉機，第1針之縫製動作時使上側裝飾線線鉤之鉤住保持確實且穩定化，不管縫製結束時之針線切斷端部之狀況及所使用之針線種類，能從第1針確實、順利形成既定之針跡。The present invention has been made in view of the above circumstances, and it is an object of the invention to provide a sewing machine having an upper decorative sewing mechanism, in which the hook of the upper decorative thread hook is securely held and stabilized during the sewing operation of the first stitch, regardless of the sewing thread at the end of sewing. The condition of the cut end and the type of the needle thread to be used can form a predetermined stitch from the first stitch.
為要達成上述目的所提出之申請專利範圍第1項之本發明之具有上側裝飾縫機構的縫紉機，係具備：複數支之針，並列於與餵布方向交叉之方向且設成上下往復移動自如；壓布件；上側裝飾線導件，固定支撐於機臂且將上側裝飾線從上方向該壓布件下之針跡形成區域導引；上側裝飾線線鉤，具有鉤住位於該上側裝飾線導件與該壓布件之間之上側裝飾線部分的鉤線部，且設為沿該複數支針之並列方向進出退入驅動移動自如，以使鉤於該鉤線部之上側裝飾線送出至與餵布方向交叉之方向；以及，上側裝飾線切斷裝置，於縫製結束時該針到達上死點或其附近，且，於該上側裝飾線線鉤移動至進出端之狀態，將跨越該上側裝飾線線鉤之鉤線部與該上側裝飾線導件之間被拉緊之上側裝飾線部分鉤住後，拉向斜後方上方並切斷，且，保持該被切斷之上側裝飾線之線端；其特徵在於，設有上側裝飾線鉤掛輔助機構，其係當該上側裝飾線線鉤伴隨縫製開始從該進出端位置退入移動而到達退入端附近時，將該上側裝飾線部分壓向下方，以使跨越該上側裝飾線切斷裝置與該上側裝飾線導件之間的上側裝飾線部分被鉤於該上側裝飾線線鉤之鉤線部。A sewing machine having an upper decorative seam mechanism according to the first aspect of the invention of the first aspect of the present invention is provided with: a plurality of needles arranged in a direction crossing the feeding direction and arranged to reciprocate up and down a pressing member; an upper decorative wire guide fixedly supported by the arm and guiding the upper decorative line from the upper direction to the stitch forming area under the pressing member; the upper decorative thread hook having the hook on the upper decorative side a hooking portion of the upper decorative line portion between the wire guide and the pressing member, and is arranged to move in and out along the parallel direction of the plurality of pins, so as to be hooked to the upper decorative line of the hooking portion And the upper side decorative line cutting device reaches the top dead center or the vicinity thereof at the end of the sewing, and the upper decorative wire hook moves to the inlet and outlet ends, and The hook line portion spanning the upper decorative wire hook and the upper decorative wire guide are hooked by the upper side decorative line portion, and then pulled obliquely to the upper rear side and cut, and the cut upper side is maintained Decorative line a wire end; the upper side decorative wire hooking auxiliary mechanism is provided when the upper decorative wire hook is retracted from the entry and exit position to start near the retreating end with the sewing start, and the upper decorative line is The portion is pressed downward so that the upper decorative line portion spanning between the upper decorative line cutting device and the upper decorative wire guide is hooked to the hook portion of the upper decorative wire hook.
又，為要達成與上述同一目的所提出之申請專利範圍第2項之本發明之具有上側裝飾縫機構的縫紉機，係具備：複數支之針，並列於與餵布方向交叉之方向且設成上下往復移動自如；壓布件；上側裝飾線導件，固定支撐於機臂且將上側裝飾線從上方向該壓布件下之針跡形成區域導引；上側裝飾線線鉤，具有鉤住位於該上側裝飾線導件與該壓布件之間之上側裝飾線部分的鉤線部，且設為沿該複數支針之並列方向進出退入驅動移動自如，以使鉤於該鉤線部之上側裝飾線抽出至與餵布方向交叉之方向；以及，上側裝飾線切斷裝置，於縫製結束時該針到達上死點或其附近，且，於該上側裝飾線線鉤移動至進出端之狀態，將跨越該上側裝飾線線鉤之鉤線部與該上側裝飾線導件之間被拉緊之上側裝飾線部分鉤住後，拉向斜後方上方並切斷，且，保持該被切斷之上側裝飾線之線端；其特徵在於：在該上側裝飾線線鉤之前端部附近，對向於該鉤線部以形成線出入口之方式設有鉤部，其可在該上側裝飾線線鉤伴隨縫製開始從該進出端位置退入移動而到達退入端附近時，鉤住跨越該上側裝飾線切斷裝置與該上側裝飾線導件之間被鉤住的上側裝飾線部分；且設有上側裝飾線壓下機構，其同步於該針之往下方之移動，將跨越該上側裝飾線線鉤切斷裝置與該上側裝飾線導件之間被鉤住之上側裝飾線部分壓向下方而輔助其鉤至該上側裝飾線線鉤前端部附近之鉤部。Moreover, the sewing machine having the upper decorative seam mechanism of the present invention of the second aspect of the patent application scope of the present invention has a plurality of needles arranged in a direction intersecting the feeding direction and is provided The upper and lower reciprocating movements are free; the upper fabric guide is fixedly supported on the arm and guides the upper decorative line from the upper direction to the stitch forming area under the pressing member; the upper decorative thread hook has a hook a hook line portion located on the upper decorative line portion between the upper decorative wire guide and the pressing member, and is arranged to move in and out along the parallel direction of the plurality of pins, so as to be hooked to the hook portion The upper side decorative line is drawn out to the direction of the feeding direction; and the upper decorative line cutting device reaches the top dead center or the vicinity thereof at the end of the sewing, and the upper decorative wire hook moves to the inlet and outlet ends a state in which the hook line portion of the upper decorative wire hook and the upper decorative wire guide are hooked by the upper side decorative line portion, and then pulled obliquely to the upper rear side and cut, and the holder is kept Cut off a wire end of the side decorative line; characterized in that: in the vicinity of the front end portion of the upper decorative wire hook, a hook portion is provided opposite to the hook wire portion to form a wire entrance and exit, and the hook wire can be attached to the upper side When the sewing starts to retreat from the entry and exit position to reach the vicinity of the retracting end, hooking the upper decorative line portion that is hooked between the upper decorative line cutting device and the upper decorative wire guide; The upper decorative line pressing mechanism is synchronized with the downward movement of the needle to press the upper decorative line portion between the upper decorative wire hook cutting device and the upper decorative wire guide to be pressed downward It is assisted to hook to the hook portion near the front end portion of the upper decorative wire hook.
根據具有如上述特徵之本第1及第2發明，於上側裝飾線部分跨越上側裝飾線線鉤之鉤線部(已移動至進出端)與上側裝飾線切斷裝置之間被鉤住並保持之縫製結束狀況下，開始對下一布之第1針之縫製動作，該上側裝飾線線鉤從進出端位置退入移動而到達退入端附近時，藉由上側裝飾線鉤掛輔助機構或上側裝飾線壓下機構使該上側裝飾線部分壓向下方，能使其確實且穩定地鉤住上側裝飾線線鉤之鉤線部或鉤部。藉此，於該上側裝飾線線鉤下一次到達進出端之狀態，在位於該鉤線部或鉤部與該上側裝飾線切斷裝置之間的上側裝飾線部分形成以右端之針為折彎中心之彎曲部分，而能使該彎曲線部分位於針線之切斷端部前方。因此，即使針線之端部於縫製結束時在壓布件下方被切斷，或，切斷後被移至針之側方上方的針線端部處於自由狀態，又，即使因使用富伸縮性之針線而使切斷後之針線端部變成非常短，於針之下降移動時仍能藉由右端之針及針線將上側裝飾線之彎曲線部分確實壓下於壓布件下方，而能從第1針之動作確實形成上側裝飾線、針線及下線鉤線彼此纒住之既定之針跡。又，因如上述能以第1針將上側裝飾線壓下於壓布件下方，於第2針以後當然能確實形成既定之針跡，能發揮消除縫製不良品之產生的效果。According to the first and second inventions having the above-described features, the upper decorative line portion is hooked and held between the hook line portion (moved to the entrance and exit end) of the upper decorative thread hook and the upper decorative line cutting device. When the sewing is completed, the sewing operation of the first stitch of the next cloth is started, and when the upper decorative thread hook is retracted from the entry and exit position and reaches the vicinity of the retracted end, the upper decorative line hooking auxiliary mechanism or The upper decorative wire pressing mechanism presses the upper decorative wire portion downward, so that it can reliably and stably hook the hook line portion or the hook portion of the upper decorative wire hook. Thereby, in the state in which the upper decorative wire hook reaches the entry and exit end next time, the upper side decorative line portion between the hook line portion or the hook portion and the upper side decorative line cutting device is formed with a right end needle as a bend. The curved portion of the center is such that the curved line portion is located in front of the cut end of the needle thread. Therefore, even if the end portion of the needle thread is cut under the pressing member at the end of the sewing, or the needle end portion which is moved to the side of the needle after the cutting is in a free state, even if the needle thread is used for the expansion and contraction The end portion of the needle thread after cutting is made very short, and the bending line portion of the upper decorative line can be reliably pressed under the pressing member by the needle and the needle thread at the right end when the needle is moved downward, and the needle can be removed from the first needle. The action does form an established stitch that the upper side trim line, the needle thread, and the lower line hook line hold each other. In addition, as described above, the upper decorative thread can be pressed under the pressing member by the first stitch, and it is a matter of course that a predetermined stitch can be surely formed after the second stitch, and the effect of eliminating the occurrence of the sewing defective product can be exhibited.
本第1發明之具有上側裝飾縫機構的縫紉機之該上側裝飾線鉤掛輔助機構，若使用同步於針之向下移動使上側裝飾線部分壓向下方的構成之情形，例如，由線壓下片構成，該線壓下片係從安裝在針固定件且上下往復移動之上側裝飾線道往下方一體延伸設置，當該上側裝飾線道到達往下方之移動端時，可從上方向下方插通移動於該上側裝飾線導件之線導引用長孔內而將該上側裝飾線部分壓向下方以鉤於該上側裝飾線線鉤之鉤線部(申請專利範圍第3項)，或，由能壓向下方之線壓下構件構成，該線壓下構件附設於針固定件之側部而向下方突出，當針及針固定件到達往下方之移動端時，可抵接於該上側裝飾線部分而將該上側裝飾線部分壓向下方以鉤於該上側裝飾線線鉤之鉤線部(申請專利範圍第5項)，則不需要用來使該上側裝飾線鉤掛輔助機構上下移動之特別的驅動機構，能使全體構成為構造簡單且廉價，且亦能適當設定且維持與針或上側裝飾線線鉤等之動作時機，即使長時間使用仍能確實達成所期之目的。In the sewing machine of the sewing machine having the upper decorative sewing mechanism according to the first aspect of the present invention, the upper decorative wire hooking assisting mechanism is configured to press the upper decorative wire portion downward in synchronization with the downward movement of the needle, for example, by the line pressing. In the sheet structure, the line pressing piece is integrally extended downward from the upper decorative line which is mounted on the needle fixing member and reciprocally moved up and down. When the upper decorative line reaches the moving end below, the line can be inserted from the top to the bottom. Moving in the long hole for guiding the wire of the upper decorative wire guide, pressing the upper decorative wire portion downward to hook the hook portion of the upper decorative wire hook (No. 3 of the patent application), or The wire pressing member is attached to the side of the needle fixing member and protrudes downward. When the needle and the needle fixing member reach the moving end below, the upper side can be abutted. Decorating the wire portion and pressing the upper decorative wire portion downward to hook the hook portion of the upper decorative wire hook (No. 5 of the patent application), the upper decorative wire hooking auxiliary mechanism is not required to be used up and down Special mobility The drive mechanism can be configured to be simple and inexpensive, and can also appropriately set and maintain the timing of the hook with the needle or the upper decorative thread, and can achieve the intended purpose even after long-term use.
又，在上側裝飾線線鉤之前端部附近對向於鉤線部設置鉤部之本第2發明之具有上側裝飾縫機構的縫紉機的該上側裝飾線壓下機構，由能向下壓下之線壓下片構成，該線壓下片係從安裝在針固定件沿上下往復移動之上側裝飾線道往下方一體延伸設置，當該上側裝飾線道到達往下方之移動端時，可從上方向下方插通移動於該上側裝飾線導件之線導引用長孔內，以將該上側裝飾線部分壓向下方而輔助其鉤於該上側裝飾線線鉤前端部附近之鉤部(申請專利範圍第4項)，或，該上側裝飾線壓下機構係由線壓下構件構成，該線壓下構件附設於針固定件之側部而向下方突出，當針及針固定件到達往下方之移動端附近時，可抵接於該上側裝飾線部分而將該上側裝飾線部分壓向下方，以輔助使其鉤於該上側裝飾線線鉤前端部附近之鉤部(申請專利範圍第6項)，上述兩種情形，亦不需要用以使上側裝飾線壓下機構上下移動之特別的驅動機構，能使全體構成為構造簡單且廉價，且亦能適當設定並維持與針或上側裝飾線線鉤等之動作時機，即使長時間使用仍能確實達成所期之目的。Further, the upper side decorative line pressing mechanism of the sewing machine having the upper decorative sewing mechanism of the second invention of the second invention provided with the hook portion in the vicinity of the front end portion of the upper decorative thread hook is capable of being pressed downward. The wire is pressed down, and the wire pressing piece is integrally extended downward from the upper decorative line which is mounted on the needle fixing member to reciprocate upward and downward, and when the upper decorative line reaches the moving end below, Inserting into the long hole for guiding the wire of the upper decorative wire guide in the downward direction to press the upper decorative wire portion downward to assist the hook portion hooked to the front end portion of the upper decorative wire hook (patent application) In the fourth item), the upper decorative line pressing mechanism is constituted by a linear pressing member attached to the side of the needle fixing member and protruding downward, when the needle and the needle fixing member reach downward When the vicinity of the moving end, the upper decorative line portion can be abutted against the upper decorative line portion to be pressed downward to assist the hook portion in the vicinity of the front end portion of the upper decorative wire hook (Japanese Patent Application No. 6) Item) In addition, a special driving mechanism for moving the upper decorative wire pressing mechanism up and down is not required, and the entire structure can be made simple and inexpensive, and the action of hooking with the needle or the upper decorative thread can be appropriately set and maintained. Timing, even if used for a long time can still achieve the purpose of the period.
又，該上側裝飾線鉤掛輔助機構或上側裝飾線壓下機構，亦可構成為藉由該上側裝飾線切斷裝置本身向下方移動將該上側裝飾線部分壓向下方以鉤於該上側裝飾線線鉤之鉤線部，或，輔助其鉤於該上側裝飾線線鉤前端附近之鉤部。Further, the upper decorative wire hooking assisting mechanism or the upper decorative wire pressing mechanism may be configured such that the upper decorative wire cutting device itself is moved downward to press the upper decorative wire portion downward to hook the upper decorative portion. The hook portion of the wire hook, or the hook portion of the hook near the front end of the upper decorative wire hook.
其他構成及效果，從以下之實施例之說明應可得以明瞭。Other configurations and effects will be apparent from the following description of the embodiments.
圖1係本發明具有上側裝飾縫機構的縫紉機之一例之3支針縱筒偏平縫縫紉機的全體立體圖，圖2係其主要部分的放大立體圖，圖3係表示主要部分之構成、動作及配置關係的放大立體圖。又，於以下之說明，對與圖7(A)~(D)及圖9(A)~(C)已說明之構成構件相同之構件使用相同符號說明。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a whole of a three-needle vertical tube flat sewing machine of an example of a sewing machine having an upper decorative sewing mechanism, Fig. 2 is an enlarged perspective view of a main portion thereof, and Fig. 3 is a view showing the configuration, operation and arrangement of main parts. Magnified perspective view. In the following description, members that are the same as those described in FIGS. 7(A) to (D) and FIGS. 9(A) to (C) are denoted by the same reference numerals.
在圖1~圖3，5L、5M、5R係3支針，透過針固定件7沿與餵布方向X交叉之方向並列安裝於針棒10(連動於設在機臂9內之縫紉機主軸(省略圖示)沿上下往復移動)之下端部，分別供應針線6L、6M、6R。11係筒型圓柱台，在其上面固定有針板12，且在內部設有形成縫紉用零件或機構(如下線鉤線用線鉤(參照圖9)或餵布齒等，因周知故省略該等說明)。13係壓布件，構成為透過壓棒14在下降位置(將縫製布從上方壓在針板12)及上升位置(解除布之壓住)切換自如，形成有包含該3支針5L、5M、5R所插通之針落部及針線6L、6M、6R與上側裝飾線3所通過之線通過部的貫通孔13a。In FIGS. 1 to 3, the 5L, 5M, and 5R series 3 needles are mounted side by side in the direction intersecting the feeding direction X through the needle fixing member 7 to the needle bar 10 (coupling with the sewing machine main shaft provided in the arm 9 ( The lower end portions of the lower and lower reciprocating movements are omitted, and the needle threads 6L, 6M, and 6R are supplied, respectively. 11-series cylindrical column, on which the needle plate 12 is fixed, and a sewing part or mechanism is formed inside (the following line hook for hook line (refer to FIG. 9) or feeding teeth, etc. These instructions). The 13-type presser is configured to be movable through the pressure bar 14 at a lowered position (pressing the sewing cloth from the upper side to the needle plate 12) and the rising position (removing the cloth), and the three pins 5L, 5M are formed. The needle drop portion into which the 5R is inserted and the needle thread 6L, 6M, and 6R and the through hole 13a of the thread passing portion through which the upper decorative wire 3 passes.
2係固定支撐於機臂9且延設於下方之上側裝飾線導件，在其下端部，如圖3所明示，形成有線導引用長孔2a，用以使上側裝飾線3大致沿前後方向插通卡合而能移動且導引其送出。8係上側裝飾線道，在其下端部附近具有上側裝飾線3插通之線孔8a，使其能同步於安裝在該針固定件7之該針5L、5M、5R沿上下往復驅動移動。2 is fixedly supported by the arm 9 and extended to the lower upper side decorative wire guide, and at the lower end portion thereof, as shown in FIG. 3, a wire guiding long hole 2a is formed for substantially making the upper decorative wire 3 in the front-rear direction. The card is inserted and can be moved and guided to be sent out. The upper decorative track of the 8 series has a wire hole 8a through which the upper decorative wire 3 is inserted in the vicinity of the lower end portion thereof so as to be reciprocally movable in the vertical direction in synchronization with the needles 5L, 5M, and 5R attached to the needle fixing member 7.
在該上側裝飾線道8之下端部，構成有上側裝飾線壓下機構，即，將線壓下片8b(能從上方朝下方插通移動該上側裝飾線導件2之線導引用長孔2a內)向下一體延設，當同步於該針5L、5M、5R之下降移動使該上側裝飾線道8到達往下方之移動端時，藉由該線壓下片8b從上方朝下方插通移動於該上側裝飾線導件2之線導引用長孔2a內，使插通於該線孔8a且跨越該上側裝飾線導件2與後述之上側裝飾線切斷裝置4之間被鉤住的上側裝飾線3部分壓向下方。又，該上側裝飾線導件2之線導引用長孔2a係放大形成為能使該線壓下片8b沿上下插通移動。At the lower end portion of the upper decorative lane 8, an upper decorative line pressing mechanism is formed, that is, the linear pressing piece 8b (the vertical guiding hole for inserting the upper decorative wire guide 2 from the upper side downward) 2a) is integrally extended downwardly, and when the downward movement of the needles 5L, 5M, and 5R is synchronized to cause the upper decorative lane 8 to reach the moving end below, the wire 8b is inserted downwardly from above by the wire The inside of the wire guiding long hole 2a of the upper decorative wire guide 2 is inserted into the wire hole 8a, and is hooked between the upper decorative wire guide 2 and the upper decorative wire cutting device 4, which will be described later. The upper part of the decorative line 3 is pressed downward. Further, the line guiding long hole 2a of the upper decorative wire guide 2 is enlarged so that the wire pressing piece 8b can be inserted and moved up and down.
1係上側裝飾線線鉤，其基端部固定於固裝在縱軸15之夾持具16，且下部部分以大致沿水平面之方式彎曲並在3支針5L、5M、5R之前面彎曲形成圓弧狀，連動於該針棒10之上下往復移動沿3支針5L、5M、5R之前面位置之圓弧狀途徑進出退入驅動移動自如。在該上側裝飾線線鉤1之前端部附近之上面側，如圖3所明示，形成有鉤線部1a，即，於通常之縫製動作時將位於跨越該上側裝飾線導件2與壓布件13下部之針跡形成區域之間斜方的上側裝飾線3部分鉤住且拉出移動至3支針5L、5M、5R中之左端針5L之左方位置。1 is an upper decorative wire hook, the base end portion of which is fixed to the holder 16 fixed to the longitudinal axis 15, and the lower portion is bent substantially in the horizontal plane and curved in front of the 3 needles 5L, 5M, 5R. The arc shape is interlocked and moved back and forth on the needle bar 10 to move in and out along the arc-shaped path of the front surface of the three pins 5L, 5M, and 5R. On the upper side of the vicinity of the front end portion of the upper decorative wire hook 1, as shown in FIG. 3, a hook portion 1a is formed, that is, it will be located across the upper decorative wire guide 2 and the pressing cloth during the normal sewing operation. The upper side decorative line 3 of the oblique portion between the stitch forming regions at the lower portion of the piece 13 is hooked and pulled out to the left position of the left end needle 5L of the three pins 5L, 5M, 5R.
在該上側裝飾線線鉤1之上面且較該鉤線部1a更前端部側，設有鉤部18，其係伴隨縫製動作之開始該上側裝飾線線鉤1從進出端位置退入移動而到達其退入端附近時，將跨越該上側裝飾線導件2與上側裝飾線切斷裝置4之間被鉤住的上側裝飾線3部分鉤住。該鉤部18，由豎起部18a(從上側裝飾線線鉤1之上面前端豎起)、中間部18b(平行延伸於上側裝飾線線鉤1之上面)及下彎部18c(向下延伸)構成，在其下彎部18c之下端部與上側裝飾線線鉤1之上面之間形成對向於該鉤線部1a開口的線出入口部18d。A hook portion 18 is provided on the upper side of the upper decorative wire hook 1 and on the front end side of the hook wire portion 1a, and the upper decorative wire hook 1 is retracted from the entry and exit position with the start of the sewing operation. When it reaches the vicinity of the retreat end, it hooks over the hooked upper side trimming line 3 between the upper side trimming wire guide 2 and the upper side trimming line cutting device 4. The hook portion 18 is composed of a rising portion 18a (standing from the upper front end of the upper decorative wire hook 1), an intermediate portion 18b (parallelly extending from the upper side of the upper decorative wire hook 1), and a lower curved portion 18c (extending downward) In the configuration, a line entrance/exit portion 18d that faces the opening of the hook line portion 1a is formed between the lower end portion of the lower curved portion 18c and the upper surface of the upper decorative wire hook 1.
又，該上側裝飾線切斷裝置4，由突入移動於上側裝飾線3部分(於縫完時跨越移動至進出端之該上側裝飾線線鉤1之鉤線部1a與該上側裝飾線導件2之線導引用長孔2a之間被拉緊)之可動刀4a與固定刀4b構成，將拉近之上側裝飾線3部分以兩刀4a、4b切斷，且，將該被切斷之上側裝飾線3之線端以線端保持彈簧4c及線保持輔助彈簧4d夾壓保持。Further, the upper decorative wire cutting device 4 is moved in the upper decorative wire 3 portion (the hook wire portion 1a of the upper decorative wire hook 1 that is moved to the entrance and exit end when the slit is completed) and the upper decorative wire guide The movable blade 4a and the fixed blade 4b which are tensioned between the two guide long holes 2a are formed, and the upper side decorative wire 3 portion is cut by the two blades 4a and 4b, and the cut is cut. The wire end of the upper decorative wire 3 is held by the wire end holding spring 4c and the wire holding assist spring 4d.
其次，參照圖4說明如上述構成之3支針縱筒偏平縫縫紉機的上側裝飾縫動作。Next, the upper side decorative joint operation of the three-cylinder vertical tube flat sewing machine configured as described above will be described with reference to Fig. 4 .
圖4(A)，係對前一布之縫製作業結束的縫完時狀態，與圖7(A)所示之狀態完全同樣，將跨越上側裝飾線線鉤1之鉤線部1a與上側裝飾線導件2之線導引用長孔2a之間的上側裝飾線3部分拉緊，且將已被切斷，或切斷後已移至側方之針線6L、6M、6R之端部6l、6m、6r以自由狀態位於上側裝飾線3部分之後方。Fig. 4(A) shows the state in which the sewing is completed at the end of the sewing operation of the preceding cloth, and the hook line portion 1a and the upper side of the upper decorative thread hook 1 are completely identical to the state shown in Fig. 7(A). The upper decorative line 3 between the wire guiding long holes 2a of the wire guide 2 is partially tensioned, and the end portions 61, 6m of the needle wires 6L, 6M, 6R which have been cut or moved to the side are cut. 6r is located in a free state behind the upper decorative line 3 portion.
在該狀態下使縫紉機動作而開始下一布之縫製時，如圖4(B)所示，該上側裝飾線線鉤1從該進出端位置退入移動，且針5L、5M、5R及上側裝飾線道8同步下降移動，到達其移動端時，線壓下片8b從上方往下方插通移動於上側裝飾線導件2之線導引用長孔2a內，藉此，使插通於該線孔8a且跨越該上側裝飾線導件2與上側裝飾線切斷裝置4之間被鉤住的上側裝飾線3部分壓向下方。When the sewing machine is operated in this state and the sewing of the next cloth is started, as shown in Fig. 4(B), the upper decorative thread hook 1 is retracted from the position of the entrance and exit, and the needles 5L, 5M, 5R and the upper side are provided. The decorative lane 8 is synchronously lowered and moved, and when it reaches the moving end, the linear pressing piece 8b is inserted into the long hole 2a for guiding the wire of the upper decorative wire guide 2 from the upper side to the lower side, thereby being inserted into the wire guide hole 2a. The wire hole 8a is pressed downward along a portion of the upper decorative wire 3 that is hooked between the upper decorative wire guide 2 and the upper decorative wire cutting device 4.
接著，如圖4(C)所示，該上側裝飾線線鉤1到達其退入端後朝針5L、5M、5R之並列方向開始進出移動，且當針5L、5M、5R及上側裝飾線道8到達其下死點後雖開始上升移動，但此時，即，當該上側裝飾線線鉤1到達退入端時，在壓向下方之狀態下之上側裝飾線3部分進入上側裝飾線線鉤1前端之鉤部18內，被該鉤部18鉤住，伴隨上側裝飾線線鉤1之進出移動依序拉出。Next, as shown in FIG. 4(C), the upper decorative wire hook 1 reaches the retracted end and then moves in and out of the parallel direction of the needles 5L, 5M, 5R, and when the needles 5L, 5M, 5R and the upper decorative line After the road 8 reaches its bottom dead center, it starts to move upward, but at this time, that is, when the upper side decorative wire hook 1 reaches the retracting end, the upper side decorative line 3 partially enters the upper decorative line in a state of being pressed downward. The hook portion 18 at the front end of the hook 1 is hooked by the hook portion 18, and is sequentially pulled out in accordance with the movement of the upper side decorative thread hook 1.
並且，於上側裝飾線線鉤1下次到達進出端之狀態，如圖4(D)所示，被該鉤部18鉤住而拉出之上側裝飾線3之位於該鉤部18與上側裝飾線切斷裝置4之間的上側裝飾線3部分，從右端之針5R之前方朝後方折彎，形成以右端之針5R為中心之彎曲部分3a，該彎曲部分3a與該鉤部18之間之上側裝飾線部分3b則位於右端之針線6R前方。又，為了要使圖4(D)之狀態更容易瞭解，將該圖4(D)放大之狀態以圖5表示。Further, in the state where the upper decorative thread hook 1 reaches the entry and exit end next time, as shown in FIG. 4(D), the hook portion 18 is hooked to pull out the upper side decorative line 3 at the hook portion 18 and the upper side decoration. The portion of the upper decorative line 3 between the wire cutting devices 4 is bent rearward from the front end of the right needle 5R to form a curved portion 3a centering on the right end needle 5R, between the curved portion 3a and the hook portion 18 The upper side decorative line portion 3b is located in front of the needle thread 6R at the right end. Further, in order to make the state of FIG. 4(D) easier to understand, the state in which FIG. 4(D) is enlarged is shown in FIG. 5.
於該狀態，使針5L、5M、5R下降移動一次，使各針線6L、6M、6R之端部6l、6m、6r在壓布件13之下部連接於布20並保持(參照圖9)後，接著使針5L、5M、5R下降移動，伴隨針5L、5M、5R之下降移動藉由右端之針5R及針線6R使上側裝飾線3之彎曲線部分3a如圖4(E)所示，確實地向壓布件13下之針跡形成區域壓下，從第1針之動作能確實地形成將上側裝飾線3、各針線6L、6M、6R及下線鉤線彼此纒繞之既定之針跡。In this state, the needles 5L, 5M, and 5R are moved downward once, and the end portions 61, 6m, and 6r of the respective needle threads 6L, 6M, and 6R are connected to the cloth 20 at the lower portion of the presser member 13 and held (see FIG. 9). Then, the needles 5L, 5M, and 5R are moved downward, and the downward movement of the needles 5L, 5M, and 5R is caused by the right end needle 5R and the needle thread 6R, and the curved line portion 3a of the upper decorative thread 3 is as shown in Fig. 4(E). The stitch forming region under the pressing member 13 is reliably pressed, and the predetermined needle for winding the upper decorative thread 3, the respective needle threads 6L, 6M, and 6R and the lower thread hook line can be surely formed from the action of the first needle. trace.
如上述使第1針之縫製動作形成既定之針跡後，由於上側裝飾線3形成跨越壓布件13下部之針跡形成區域與上側裝飾線導件2之線導引用長孔2a之間向右斜上方之姿勢鉤住的狀態，故在第2針以後之縫製動作重複伴隨該上側裝飾線線鉤1之進出移動，使該線鉤1之鉤線部1a鉤住上側裝飾線3拉向左方之作用，而確實、順利形成既定之針跡。When the stitching operation of the first stitch is formed into a predetermined stitch as described above, the upper decorative thread 3 is formed between the stitch forming region of the lower portion of the presser member 13 and the long guide hole 2a for guiding the upper decorative wire guide 2. In the state in which the posture is hooked to the right obliquely upward, the sewing operation after the second stitch is repeated with the movement of the upper decorative thread hook 1, and the hook portion 1a of the hook 1 is hooked to the upper decorative thread 3 The role of the left side, but indeed, smoothly formed the established stitch.
又，雖省略圖示，但於上側裝飾線線鉤1從圖4(D)至圖4(E)之移動中，鉤於該鉤部18之上側裝飾線3部分自然從該鉤部18之線出入口部18d離開並釋放。Further, although not shown in the drawings, in the movement of the upper decorative thread hook 1 from FIG. 4(D) to FIG. 4(E), the portion of the decorative line 3 hooked to the upper side of the hook portion 18 naturally comes from the hook portion 18. The line entrance and exit portion 18d is separated and released.
因此，即使針線6L、6M、6R之端部(於縫製結束時在壓布件13下部被切斷，或切斷後朝針5L、5M、5R之側方上方移開)成為自由狀態，或即使因使用富有伸縮性之針線6L、6M、6R而使切斷後之針線端部6l、6m、6r成為非常短，因於對下一布之第1針之縫製動作時藉由附設於上側裝飾線線鉤1之前端部之鉤部18之功效，能確實鉤住上側裝飾線3部分而形成如前述之彎曲部分3a，使該彎曲部分3a與鉤部18間之上側裝飾線部分3b位於右端之針線6R前方，並使上側裝飾線3確實向壓布件13下之針目形成區域壓下，故能從第1針之動作確實形成裝飾線3、針線6L、6M、6R及下線鉤線彼此纒繞之既定之針跡，又，在第2針以後，亦當然能確實形成既定之針跡，藉此，能消除縫製不良品之產生。Therefore, even if the end portions of the needle threads 6L, 6M, and 6R are cut off at the lower portion of the presser 13 at the end of sewing, or are moved upward toward the sides of the needles 5L, 5M, and 5R after cutting, or even The needle thread ends 61, 6m, and 6r after cutting are extremely short by using the flexible needles 6L, 6M, and 6R, and are attached to the upper decorative line by the sewing operation of the first stitch of the next cloth. The function of the hook portion 18 at the front end portion of the wire hook 1 can surely hook the upper side decorative wire 3 portion to form the curved portion 3a as described above, so that the upper side decorative line portion 3b between the curved portion 3a and the hook portion 18 is located at the right end. The front side of the needle thread 6R and the upper decorative thread 3 are reliably pressed against the needle formation region under the pressing member 13, so that the decorative thread 3, the needle thread 6L, 6M, 6R and the lower thread hook line can be surely formed from the operation of the first needle. It is also possible to form a predetermined stitch after the second stitch, and it is possible to eliminate the occurrence of the defective sewing product.
又，在上述之實施形態，上側裝飾線壓下機構(將插通於該上側裝飾線道8之線孔8a且跨越該上側裝飾線導件2與上側裝飾線切斷裝置4之間被鉤住的上側裝飾線3部分壓向下方，以輔助上側裝飾線3被鉤部18鉤住)，雖採用將能從上方至下方插通移動該上側裝飾線導件2之線導引用長孔2a內的線壓下片8b一體延設於該上側裝飾線道8之下端部之構成，替代之，如圖6所示，亦可在針固定件7之左側面部附設向下方突出的大致L形之線壓下構件21。Further, in the above-described embodiment, the upper decorative line pressing mechanism (the hook hole 8a inserted into the upper decorative lane 8 and being hooked between the upper decorative wire guide 2 and the upper decorative wire cutting device 4 is hooked The upper side decorative line 3 portion is pressed downward to assist the upper side decorative wire 3 to be hooked by the hook portion 18, and the wire guiding long hole 2a for inserting the upper decorative wire guide 2 from above to below is used. The inner wire pressing piece 8b is integrally formed on the lower end portion of the upper side decorative track 8. Alternatively, as shown in FIG. 6, a substantially L shape protruding downward may be attached to the left side surface of the needle fixing member 7. The line presses the member 21.
若採用如圖6所示之線壓下構件21之情形，當針5L、5M、5R及針固定件7到達往下方之移動端附近時，線壓下構件21抵接於跨越該上側裝飾線導件2與上側裝飾線切斷裝置4之間被鉤住之上側裝飾線3中，接近上側裝飾線切斷裝置4的線部分，以輔助上側裝飾線3被該鉤部18鉤住，與上述實施形態同樣，能從第1針之縫製動作確實形成既定之針跡。When the wire pressing member 21 is used as shown in FIG. 6, when the needles 5L, 5M, 5R and the needle fixing member 7 reach the vicinity of the moving end below, the wire pressing member 21 abuts against the upper decorative wire. The guide member 2 and the upper decorative wire cutting device 4 are hooked between the upper side decorative wires 3 and close to the line portion of the upper decorative wire cutting device 4 to assist the upper decorative wire 3 to be hooked by the hook portion 18, and Similarly to the above-described embodiment, a predetermined stitch can be surely formed from the sewing operation of the first stitch.
又，在上述實施形態，雖說明設置鉤部18於上側裝飾線線鉤1之前端部，使其與本來之鉤線部1a對向，且設置線壓下片8b或線壓下構件21，於第1針之縫製動作時用以輔助該鉤部18鉤住上側裝飾線3，但替代該構成，亦可不設置鉤部18於上側裝飾線線鉤1之前端部，僅設置本來之鉤線部1a，而另一方面，另外設置能壓向下方之上側裝飾線鉤掛輔助機構，即，藉由與該針5L、5M、5R及針棒10另外上下驅動移動，能將跨越該上側裝飾線導件2與上側裝飾線切斷裝置4之間被鉤住之上側裝飾線3壓向下方，以使其能被鉤於上側裝飾線線鉤1之鉤線部1a。Further, in the above-described embodiment, the hook portion 18 is provided at the end portion of the upper decorative wire hook 1 so as to face the original hook portion 1a, and the wire pressing piece 8b or the wire pressing member 21 is provided. In the sewing operation of the first stitch, the hook portion 18 is assisted in hooking the upper decorative wire 3, but instead of the configuration, the hook portion 18 may not be provided at the front end of the upper decorative wire hook 1, and only the original hook line may be provided. The portion 1a, on the other hand, is additionally provided with a lower side decorative line hooking assisting mechanism, that is, by additionally driving up and down with the needles 5L, 5M, 5R and the needle bar 10, the upper side decoration can be spanned The wire guide 2 and the upper decorative wire cutting device 4 are hooked by the upper side decorative wire 3 to be pressed downward so as to be hooked to the hook wire portion 1a of the upper decorative wire hook 1.
再者，上側裝飾線鉤掛輔助機構，亦可藉由將上述實施形態所示之上側裝飾線切斷裝置4本身向下方移動，使上側裝飾線3壓向下方，以使其能被鉤於上側裝飾線線鉤1之鉤線部1a。即，亦可構成為使上側裝飾線切斷裝置4沿上下驅動移動自如，以使其兼用為上側裝飾線鉤掛輔助機構。Further, the upper decorative wire hooking assisting mechanism can move the upper decorative wire cutting device 4 downward as shown in the above embodiment, and the upper decorative wire 3 can be pressed downward so that it can be hooked. The hook line portion 1a of the hook 1 of the upper side is decorated. In other words, the upper decorative wire cutting device 4 may be configured to be movable up and down so as to be used as the upper decorative wire hooking assisting mechanism.
但是，若要設置如上述另外之上側裝飾線鉤掛輔助機構，或以上側裝飾線切斷裝置4兼用上側裝飾線鉤掛輔助機構之情形，需要例如氣壓缸等使該上側裝飾線壓下機構或上側裝飾線切斷裝置4上下移動之特別驅動機構，且需要適當設定針5L、5M、5R或上側裝飾線線鉤1等之動作時機，以及，需要定期調整維持，以免該設定時機經常產生失常。站在此觀點，若採用上述各實施形態所示之構成，在構造上、成本上、甚至維護上均較佳。However, in order to provide the above-described upper side decorative thread hooking assisting mechanism or the upper side trimming line cutting device 4 as the upper side decorative thread hooking assisting mechanism, it is necessary to press the upper decorative wire lowering mechanism, for example, a pneumatic cylinder or the like. Or the special drive mechanism for moving the upper decorative wire cutting device 4 up and down, and it is necessary to appropriately set the operation timings of the needles 5L, 5M, 5R or the upper decorative wire hook 1 and the like, and it is necessary to periodically adjust and maintain, so that the setting timing is often generated. Abnormal. From this point of view, the configuration shown in each of the above embodiments is preferable in terms of structure, cost, and even maintenance.
再者，在上述實施形態，雖適用於3支針縱筒偏平縫縫紉機，但本發明不限於此，亦能適用於平面車頭型偏平縫縫紉機或圓筒車頭型偏平縫縫紉機等。Further, in the above embodiment, the present invention is applied to a three-cylinder vertical flat sewing machine, but the present invention is not limited thereto, and can be applied to a flat front type flat sewing machine or a cylindrical front type flat sewing machine.
1．．．上側裝飾線線鉤1. . . Upper decorative thread hook
1a．．．鉤線部1a. . . Hook line
2．．．上側裝飾線導件2. . . Upper decorative wire guide
2a．．．線導引用長孔2a. . . Long hole for wire guiding
3．．．上側裝飾線3. . . Upper decorative line
3a．．．彎曲部分3a. . . Curved part
3b．．．上側裝飾線部分3b. . . Upper decorative line section
4．．．上側裝飾線切斷裝置4. . . Upper decorative line cutting device
4a．．．可動刀4a. . . Movable knife
4b．．．固定刀4b. . . Fixed knife
4c．．．線端保持彈簧4c. . . Wire end retaining spring
4d．．．線保持輔助彈簧4d. . . Wire retention auxiliary spring
5L、5M、5R．．．針5L, 5M, 5R. . . needle
6L、6M、6R．．．針線6L, 6M, 6R. . . sewing
6l、6m、6r．．．針線端部6l, 6m, 6r. . . Needle end
7．．．針固定件7. . . Needle fixing
8．．．上側裝飾線道8. . . Upper decorative line
8a．．．線孔8a. . . Line hole
8b．．．線壓下片8b. . . Line press
9．．．機臂9. . . Arm
10．．．針棒10. . . Needle bar
11．．．筒型圓筒車頭部11. . . Cylinder head
12．．．針板12. . . Needle plate
13．．．壓布件13. . . Pressing piece
13a．．．貫通孔13a. . . Through hole
14．．．壓棒14. . . Pressure bar
15．．．縱軸15. . . Vertical axis
16．．．夾持具16. . . Clamp
18．．．鉤部18. . . Hook
18a．．．豎起部18a. . . Erect
18b．．．中間部18b. . . Middle part
18c．．．下彎部18c. . . Bend
18d．．．線出入口部18d. . . Line entrance and exit
19．．．下線鉤線用線鉤19. . . Lower hook line hook
20．．．布20. . . cloth
21．．．線壓下構件twenty one. . . Line pressing member
圖1係本發明具有上側裝飾縫機構的縫紉機之一例之3支針縱筒偏平縫縫紉機的全體立體圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a whole of a three-cylinder longitudinal flat-slit sewing machine which is an example of a sewing machine having an upper decorative sewing mechanism according to the present invention.
圖2係該縫紉機之主要部分的放大立體圖。Fig. 2 is an enlarged perspective view of the main part of the sewing machine.
圖3係表示該縫紉機之主要部分之構成、動作及配置關係的放大立體圖。Fig. 3 is an enlarged perspective view showing the configuration, operation, and arrangement of the main parts of the sewing machine.
圖4(A)~(E)係第1針之上側裝飾縫動作之主要部分的說明圖。4(A) to 4(E) are explanatory views of main parts of the upper side decorative sewing operation of the first stitch.
圖5係圖4(D)之狀態的放大圖。Fig. 5 is an enlarged view showing the state of Fig. 4(D).
圖6係表示本發明具有上側裝飾縫機構的縫紉機之另外實施形態之主要部分的放大圖。Fig. 6 is an enlarged view showing a main part of another embodiment of the sewing machine having the upper decorative seam mechanism of the present invention.
圖7(A)~(D)係習知具有上側裝飾縫機構的縫紉機之第1針之上側裝飾縫動作之主要部分的說明圖。7(A) to 7(D) are explanatory views of the main part of the upper side decorative sewing operation of the first needle of the sewing machine having the upper decorative sewing mechanism.
圖8係圖7(D)之狀態的放大圖。Fig. 8 is an enlarged view showing the state of Fig. 7(D).
圖9(A)~(C)係上側裝飾線與針線之位置關係的說明圖。9(A) to 9(C) are explanatory views showing the positional relationship between the upper decorative line and the needle thread.
1．．．上側裝飾線線鉤1. . . Upper decorative thread hook
1a．．．鉤線部1a. . . Hook line
2．．．上側裝飾線導件2. . . Upper decorative wire guide
2a．．．線導引用長孔2a. . . Long hole for wire guiding
3．．．上側裝飾線3. . . Upper decorative line
3a．．．彎曲部分3a. . . Curved part
3b．．．上側裝飾線部分3b. . . Upper decorative line section
4．．．上側裝飾線切斷裝置4. . . Upper decorative line cutting device
4a．．．可動刀4a. . . Movable knife
4b．．．固定刀4b. . . Fixed knife
4c．．．線端保持彈簧4c. . . Wire end retaining spring
4d．．．線保持輔助彈簧4d. . . Wire retention auxiliary spring
5L、5M、5R．．．針5L, 5M, 5R. . . needle
6L、6M、6R．．．針線6L, 6M, 6R. . . sewing
6l、6m、6r．．．針線端部6l, 6m, 6r. . . Needle end
18．．．鉤部18. . . Hook
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006357152A JP5057303B2 (en) | 2006-12-07 | 2006-12-07 | Sewing machine with upper decoration mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200840900A TW200840900A (en) | 2008-10-16 |
| TWI414659B true TWI414659B (en) | 2013-11-11 |
Family
ID=39546565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW096143403A TWI414659B (en) | 2006-12-07 | 2007-11-16 | And a sewing machine having an upper decorative sewing mechanism |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5057303B2 (en) |
| KR (1) | KR20080052390A (en) |
| CN (1) | CN101195948B (en) |
| TW (1) | TWI414659B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4725864B2 (en) * | 2008-09-26 | 2011-07-13 | ヤマトミシン製造株式会社 | Flat stitch sewing machine |
| JP5547930B2 (en) * | 2009-08-31 | 2014-07-16 | ペガサスミシン製造株式会社 | Multi-needle flat stitch machine and decorative stitches |
| CN102953237A (en) * | 2012-08-15 | 2013-03-06 | 宁波宇杰电子科技有限公司 | Novel industrial sewing bobbin winder shuttle peg column |
| CN108103678B (en) * | 2018-01-16 | 2020-06-05 | 杰克缝纫机股份有限公司 | Sewing machine take-up mechanism and sewing machine |
| JP7371915B2 (en) * | 2020-03-26 | 2023-10-31 | オルガン針株式会社 | Sewing method using an interlock stitch sewing machine needle and interlock stitch sewing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0329693A (en) * | 1989-06-27 | 1991-02-07 | Pegasus Sewing Mach Mfg Co Ltd | Outer ornament thread cutting method and device of plural-needle sewing machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179282U (en) * | 1984-05-10 | 1985-11-28 | ペガサスミシン製造株式会社 | Top thread cutting device for multi-needle sewing machine |
| JPS6145796A (en) * | 1984-08-09 | 1986-03-05 | ペガサスミシン製造株式会社 | Cutting of decorative yarn of multiple needle sewing machine |
| JPS62114591A (en) * | 1985-11-14 | 1987-05-26 | ペガサスミシン製造株式会社 | Decorative needle thread looper of decorative stitch sewing machine |
| JPH04354979A (en) * | 1991-06-03 | 1992-12-09 | Morimoto Mfg Co Ltd | Decorative thread cutting device for sewing machine with plural needles |
| CN2118744U (en) * | 1991-08-20 | 1992-10-14 | 白连生 | Machine for sewing a belt onto a base fabric |
| JP2000192363A (en) * | 1998-12-25 | 2000-07-11 | Juki Corp | Upper decorating yarn control mechanism of sewing machine |
| US6205941B1 (en) * | 1999-10-18 | 2001-03-27 | Ming-Tung Yu | Chain stitch sewing machine including a needle-thread pushing member |
| JP4378486B2 (en) * | 2004-11-16 | 2009-12-09 | 蛇の目ミシン工業株式会社 | Top decorative sewing device |
| JP5142454B2 (en) * | 2004-12-07 | 2013-02-13 | Ｊｕｋｉ株式会社 | sewing machine |
| JP4354979B2 (en) * | 2006-08-31 | 2009-10-28 | 春日電機株式会社 | Static eliminator |
-
2006
- 2006-12-07 JP JP2006357152A patent/JP5057303B2/en not_active Expired - Fee Related
-
2007
- 2007-11-16 TW TW096143403A patent/TWI414659B/en active
- 2007-11-27 KR KR1020070121529A patent/KR20080052390A/en not_active Application Discontinuation
- 2007-12-05 CN CN2007101998068A patent/CN101195948B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0329693A (en) * | 1989-06-27 | 1991-02-07 | Pegasus Sewing Mach Mfg Co Ltd | Outer ornament thread cutting method and device of plural-needle sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101195948B (en) | 2012-12-05 |
| CN101195948A (en) | 2008-06-11 |
| JP5057303B2 (en) | 2012-10-24 |
| KR20080052390A (en) | 2008-06-11 |
| JP2008142498A (en) | 2008-06-26 |
| TW200840900A (en) | 2008-10-16 |
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