CN1025926C - 两杆之间的铰接装置 - Google Patents

两杆之间的铰接装置 Download PDF

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Publication number
CN1025926C
CN1025926C CN91111210A CN91111210A CN1025926C CN 1025926 C CN1025926 C CN 1025926C CN 91111210 A CN91111210 A CN 91111210A CN 91111210 A CN91111210 A CN 91111210A CN 1025926 C CN1025926 C CN 1025926C
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Prior art keywords
pivot
bar
recess
support arm
articulated mounting
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Expired - Fee Related
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CN91111210A
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CN1062022A (zh
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安东尼尔·吉门兹
帕特里斯·德普朗特
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Mefina SA
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Mefina SA
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/24—Feed-dog lifting and lowering devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32819—Pivoted including tension or take-up means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32819—Pivoted including tension or take-up means
    • Y10T403/32852—External of bearing assembly, e.g., antirattler, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32861—T-pivot, e.g., wrist pin, etc.
    • Y10T403/32868—Floating pin

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Clamps And Clips (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

杆的端部是通过在支臂之间容纳杆的叉件而限定的。每一支臂具有布置在其内侧面的一凹口。凹口平行于此内侧面且按此支臂的纵向而延伸，支臂端的开通可设置一容纳枢轴的通道。凹口不贯穿支臂的总厚度，以便留出保持枢轴的轴向止推面。杆的端部具有用于与枢轴啮合的侧向凹口。拉力弹簧的一端与杆连接，而另一端被钩住在与枢轴的轴线同心的槽内，槽设置在相反于开通凹口侧面的杆的一端。

Description

本发明涉及在两杆之间的铰接装置，在此装置中，第一杆的一端具有一用于在支臂之间容纳第二杆一端的叉件。
当没有滚珠轴承情况下两根杆互相铰接时，很难同时获得两杆之间不存在任一余隙的自由运动。尤其是在以高频率工作的杆确实是如此的，例如缝纫机的待缝纫材料驱动机构用的杆。然而，按高频率往复运动工作的杆，铰接杆之间的余隙会引起噪声，而且，在同样情况下，会造成不精密缝合的来源。
在此机构中，用于带动织物的爪一般按照两个正交方向的组合运动而被推动，正交方向组合运动给与爪一椭圆轨迹。为此，爪被固定到一个呈夹子状元件上，夹子状元件的两支臂的自由端与两根平行杆铰接，以便按照两方向之一控制移动。夹子的两支臂铰接轴的对准提出一个制造方面的棘手问题，即两支臂的穿孔须在单一作业中实现。此外，如果此呈夹子状元件是直接地取自铸造厂，例如灌铸件，事实上，为浇铸件穿孔面释放的应力仍然使穿孔件的对准变得更加困难。
本发明目的在于至少部分地弥补上述缺陷。
为此，本发明按权利要求1涉及在两杆之间的铰接装置。
通过此设想，该装置可直接使用铸造件，尤其是不需要任一预加工作业的浇铸件，由此而导致制造费用的明显减低。当然，这些元件也可通过用塑性材料模塑或注塑而获得。
随后的说明和附图揭示其它优点，作为实施例的附图示意地说明本发明目的的铰接装置的实施方案。
图1为装有铰接装置的缝纫机用织物驱动机构的俯视图。
图2是按图1线Ⅱ-Ⅱ的正视图。
图3是按图2线Ⅲ-Ⅲ的剖面图。
图4是按图2线Ⅳ-Ⅳ的正视图。
图5是按图2线Ⅴ-Ⅴ的局部剖视放大图。
图6是图5的透视分解图。
配置有两杆之间的铰接装置的机构作为发明对象的实施例，是本文中的缝纫机织物传动机构。鉴于此机构严格地说不是本发明部分，但仅作为一个应用例来出示，本文对这方面不予全面详细叙述，如果此描述对本发明的理解是不必要的话。
图1～4表示用于将机构连接到底座（未图 示）的一根棒1，杆2是旋转安装在棒1上的。此杆含有与连接元件2C连接的两条臂2a，2b，连接元件2c配置一容纳棒1的侧向开启的纵向凹口3。臂2a和2b的自由端各自与呈夹子状元件5的两臂5a，5b的自由端铰接，夹子的中央臂5c含有一用于按一规定方向通过相继的间距驱动待缝纫织物的爪8。
本发明涉及的铰接装置经放大示于图5和6。图2表示与呈夹子状元件5铰接的臂2a和2b的两端由叉件限定，叉件的支臂分别由7a，7b和6a，6b表示之，且在叉件支臂之间分别容纳夹子状元件5的臂5a和5b。如图5和6所示的每一支臂6a，6b;7a，7b，其中仅在图6中示出支臂6a和6b，支臂6a和6b的内表面上设有凹口9。此凹口9平行于支臂6a和6b的内侧面，且按此支臂的纵向而延伸，从而在开孔的支臂端布置一容纳枢轴10的通道。如图6所示，较佳的是，此空挡（即凹口）不贯穿支臂6a和6b的整个厚度，以便留出保持枢轴10的轴向止推面。每个凹口9的侧面9a的底部用于作为枢轴10的绕轴旋转面。
插进叉件支臂6a，6b之间的呈夹子状元件5的臂5a的一端具有用于插进枢轴10上的侧向凹口11。相反于侧向凹口11通向的侧面的臂5b的一端部分，具有与枢轴10的轴线同心的半圆形槽12。此槽12用于钩住螺旋拉力弹簧13之一端。为容纳此螺旋弹簧13，杆2的臂2a和2b具有特别是示于图6的半圆形截面，从而为螺旋弹簧13的通路而布置了侧向开启的通道，螺旋弹簧的另一端通入与杆2a和2b连接的连接元件2c的纵向凹口3而钩住在棒1上。
人们可以理解，所有绕轴旋转面是由使枢轴能侧向进入的半圆形面形成的。同样地，杆2a和2b的垂直截面是半环形的，以使这些杆可直接通过铸造而获得的，特别是通过浇铸，无需任何后加工。这种铰接装置一方面导致制造操作的简化和工作量的明显减少，另一方面可获得超过传统铰接法的精密度。此外，由于杆是弹性地支靠在枢轴上，所有由磨损引起的余隙可自动地消除，以致使此铰接在无噪音下操作，且即使受到磨损也具有精密度。

Claims (6)

1、两杆(2a，2b；5a，5b)之间的铰接装置，其中第一杆(2a，2b)的一端具有在支臂(6a，6b；7a，7b)之间容纳第二杆(5b)一端的叉件，其特征在于凹口(9)按此支臂的纵向而被设置在各个所述支臂(6a，6b)上，因此支臂一端的开孔形成了枢轴(10)的一端在所述支臂之间的侧向进入，第一凹口(9)的侧面(9a)的底部形成了所述枢轴(10)两端之一的支承面，而第二杆(5a，5b)的邻接端具有凹口(11)在其表面之一侧向开通以便与在叉件支臂(6a，6b；7a，7b)之间延伸的枢轴(10)部分啮合，以及弹性装置(13)用于将一侧和压力施加在第二杆(5a，5b)的一端，一方面使枢轴(10)和所述支承面，另一方面使第二杆(5a，5b)的凹口(11)的底部和枢轴(10)彼此保持经常的接触。
2、按权利要求1的铰接装置，其特征在于在所述叉件的支臂（6a，6b）两端形成的凹口（9）被设置在各支臂的内侧面上，且平行于此内侧面，以便布置所述枢轴（10）的轴向止推面。
3、按权利要求1的装置，其特征在于第二杆（5a，5b）的端部具有用于钩住螺旋拉力弹簧（13）一端的装置（12），而螺旋拉力弹簧的另一端与第一杆（2b）连接。
4、按权利要求3的装置，其特征在于相反于所述凹口（11）通向的侧面的第二杆（5a，5b）的端部中央部分，具有与所述枢轴（10）的轴线同心的槽（12），且用于钩住所述螺旋拉力弹簧（13）的一端。
5、按权利要求3的铰接装置，其特征在于所述拉力弹簧（13）的第二端被钩住在所述第二枢轴（1）的周围，第二枢轴（1）平行于第一枢轴且侧向嵌入凹口（3）内，凹口（3）的底部形成设置在所述第一杆（2a，2b）另一端的第二枢轴（1）的支承面。
6、按前述权利要求之一的铰接装置，其特征在于每一带有支承面的所述杆是直接地通过铸造而获得的。
CN91111210A 1990-11-29 1991-11-26 两杆之间的铰接装置 Expired - Fee Related CN1025926C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH03779/90-1 1990-11-29
CH3779/90A CH684416A5 (fr) 1990-11-29 1990-11-29 Dispositif d'articulation entre deux leviers.

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CN1062022A CN1062022A (zh) 1992-06-17
CN1025926C true CN1025926C (zh) 1994-09-14

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US (1) US5143470A (zh)
EP (1) EP0488957B1 (zh)
JP (1) JPH04266609A (zh)
CN (1) CN1025926C (zh)
BR (1) BR9105187A (zh)
CH (1) CH684416A5 (zh)
DE (1) DE69103736T2 (zh)
ES (1) ES2061219T3 (zh)
RU (1) RU2040712C1 (zh)

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CN100582506C (zh) * 2006-04-28 2010-01-20 鸿富锦精密工业（深圳）有限公司 转动机构

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DE4227291A1 (de) * 1992-08-18 1994-02-24 Wabco Westinghouse Fahrzeug Gabelgelenk
BR9304034A (pt) * 1993-10-19 1995-06-20 Brasil Compressores Sa Biela bi-partida para compressor hermético alternativo
CN102003454B (zh) * 2010-11-03 2013-01-02 倪湘凝 火炬台顶升机构用的铰接装置
RU2507326C2 (ru) * 2012-05-03 2014-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия" (ИГТА) Механизм транспортирования ткани швейной машины
CN108118459A (zh) * 2016-11-29 2018-06-05 深圳市德业智能股份有限公司 一种物料定位装置以及一种缝纫设备

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Publication number Publication date
ES2061219T3 (es) 1994-12-01
US5143470A (en) 1992-09-01
EP0488957B1 (fr) 1994-08-31
EP0488957A1 (fr) 1992-06-03
DE69103736T2 (de) 1995-03-02
CN1062022A (zh) 1992-06-17
CH684416A5 (fr) 1994-09-15
BR9105187A (pt) 1992-07-21
RU2040712C1 (ru) 1995-07-25
JPH04266609A (ja) 1992-09-22
DE69103736D1 (de) 1994-10-06

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