JP4584646B2 - Rotating shaft support device for sewing machine - Google Patents

Rotating shaft support device for sewing machine Download PDF

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JP4584646B2
JP4584646B2 JP2004227484A JP2004227484A JP4584646B2 JP 4584646 B2 JP4584646 B2 JP 4584646B2 JP 2004227484 A JP2004227484 A JP 2004227484A JP 2004227484 A JP2004227484 A JP 2004227484A JP 4584646 B2 JP4584646 B2 JP 4584646B2
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frame
bearing
housing hole
sewing machine
rotating shaft
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JP2006043079A (en
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淳司 川上
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ペガサスミシン製造株式会社
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Priority to JP2004227484A priority Critical patent/JP4584646B2/en
Priority to TW094123442A priority patent/TW200609406A/en
Priority to CN2005100910192A priority patent/CN1734001B/en
Publication of JP2006043079A publication Critical patent/JP2006043079A/en
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    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Description

本発明は、ミシンの回転軸支持装置に関するもので、特に高速で駆動する工業用ミシンの回転軸支持に好適な回転軸支持装置である。   The present invention relates to a rotating shaft support device for a sewing machine, and is particularly suitable for supporting a rotating shaft of an industrial sewing machine that is driven at high speed.

従来のミシンの回転軸支持装置としては、回転軸を支持する軸受の外輪に一対の弾性リング（固定具）を配置させることで軸受のクリープ現象を防止しようとするものが知られている（例えば、特許文献１を参照。）。   As a conventional rotary shaft support device for a sewing machine, there is known a device that attempts to prevent a bearing creep phenomenon by arranging a pair of elastic rings (fixtures) on an outer ring of a bearing that supports the rotary shaft (for example, , See Patent Document 1).

実開昭５５−２３６４９号公報(第１頁、第１−２図)Japanese Utility Model Publication No. 55-23649 (page 1, Fig. 1-2)

ところが従来のミシンの回転軸支持装置においては、一対の弾性リング用溝を軸受の外輪に形成する必要があるので、軸受のコストが高くなり、また固定具を付設した軸受の装着も専用の工具が必要であった。さらに軸受の組み入れを容易にするためには、一対の弾性リングの間に高粘度のグリスを塗布する必要もあった。 However the rotary shaft supporting apparatus of a conventional sewing machine, it is necessary to form a pair of elastic rings groove on the outer ring of the bearing, the cost of the bearing becomes high, and the dedicated also mounting of a bearing annexed fixture tools Was necessary. Further, in order to facilitate the incorporation of the bearing, it has been necessary to apply high-viscosity grease between the pair of elastic rings.

従って、本発明の課題は、軸受の装着を容易に行うことができると共にそのコストを抑えることができるミシンの回転軸支持装置を提供することを目的としている。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rotary shaft support device for a sewing machine capable of easily mounting a bearing and suppressing the cost thereof.

本発明は、上記目的を達成するために、ハウジング孔を有するフレームと、内輪で回転軸を支持しハウジング孔に挿嵌される軸受と、フレームのハウジング孔に対して軸受の外輪を固定する固定具とを備えたミシンの回転軸支持装置において、
ハウジング孔がフレームの窪み部に形成され、軸受の外輪をフレームのハウジング孔より突設させ、固定具がフレームの窪み部に配置されると共にフレームの窪み部を覆う取付けカバーが設けられ、固定具の先端に弾性片を設け、取付けカバーをフレームに取付ける際に取付けカバーで固定具がフレームの窪み部に押し込められながら該固定具の先端の弾性片が該外輪の突設部とハウジング孔の周辺とを押圧することでフレームのハウジング孔に対して軸受の外輪を固定するようにしたことを特徴とする。 In order to achieve the above object, the present invention provides a frame having a housing hole, a bearing that supports a rotating shaft by an inner ring and is fitted into the housing hole, and a fixing that fixes an outer ring of the bearing to the housing hole of the frame. A rotary shaft support device for a sewing machine provided with a tool,
Housing holes are formed in the recess of the frame, the outer race of the bearing is projected from the housing hole of the frame, the mounting cover covering the recess of the frame is provided with a fixture is placed in the recess portion of the frame, the fixture near the elastic pieces provided on the tip, while the fixture is pushed into the recess portion of the frame mounting cover when mounting the mounting cover to the frame elastic piece of the tip of the fixture is projected portion and the housing bore of the outer race And the outer ring of the bearing is fixed to the housing hole of the frame.

固定具を取付けカバーに一体的に形成させるとよい。 The cover mounting fixture may be integrally formed.

以上のように、本発明によれば、軸受の外輪をフレームのハウジング孔より突設させ、該外輪の突設部とハウジング孔の周辺とに固定具を押圧させているので、軸受の装着が容易でそのコストを抑えることができる。またハウジング孔をフレームの窪み部に形成すると、固定具をフレームの窪み部に介在させることができ、更にフレームの窪み部を覆う取付けカバーを設けると、取付けカバーをフレームに取付ける際に固定具が取付けカバーでフレームの窪み部に押し込められながら該固定具が該外輪の突設部とハウジング孔の周辺とを押圧することとなる。 As described above, according to the present invention, the outer race of the bearing is projected from the housing hole of the frame, so that by pressing the fastener to the periphery of the projecting portion and the housing bore of the outer race, the mounting of the bearing It is easy and can reduce the cost. Further, when the housing hole is formed in the hollow portion of the frame, the fixing tool can be interposed in the hollow portion of the frame. Further, when the mounting cover that covers the hollow portion of the frame is provided, the fixing tool is attached when the mounting cover is attached to the frame. The fixing member presses the projecting portion of the outer ring and the periphery of the housing hole while being pushed into the hollow portion of the frame by the mounting cover.

以下、本発明の実施の形態を図面に基づいて説明する。ミシンＭのフレーム１はハウジング孔２を有し、ハウジング孔２に軸受３が配置されている。軸受３の内輪３ａは回転軸４を支持し、回転軸４はミシンの駆動時に一方向に回転する。回転軸４は右端にハンドプーリ４ａを有し、作業者はハンドプーリ４ａでミシンを駆動操作できる。軸受３の外輪３ｂはフレーム１のハウジング孔２に回転可能に支持された状態となっており、その両端はハウジング孔２より突設している。このハウジング孔２はフレーム１の窪み部１ａに形成されており、窪み部１ａに固定具５が配置されている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The frame 1 of the sewing machine M has a housing hole 2, and a bearing 3 is disposed in the housing hole 2. The inner ring 3a of the bearing 3 supports the rotating shaft 4, and the rotating shaft 4 rotates in one direction when the sewing machine is driven. The rotating shaft 4 has a hand pulley 4a at the right end, and an operator can drive the sewing machine with the hand pulley 4a. The outer ring 3 b of the bearing 3 is rotatably supported by the housing hole 2 of the frame 1, and both ends of the outer ring 3 b protrude from the housing hole 2. The housing hole 2 is formed in a recess 1a of the frame 1, and a fixture 5 is disposed in the recess 1a.

固定具５は取付けカバー６に一体的に形成されており、取付けカバー６はフレーム１の窪み部１ａを覆っている。取付けカバー６はフレーム１にネジ７，７で取付けられる。この時、固定具５は取付けカバー６によってフレーム１の窪み部１ａに押し込められ、固定具５先端の弾性片５ａは軸受外輪３ｂの突設部とハウジング孔２の周辺とを押圧する。固定具５先端の弾性片５ａによる押圧が行われると、軸受３の外輪３ｂはハウジング孔２に対して固定され、軸受のクリープ現象を防止することができる。 The fixture 5 is formed integrally with the attachment cover 6, and the attachment cover 6 covers the recess 1 a of the frame 1. The attachment cover 6 is attached to the frame 1 with screws 7 and 7. At this time, the fixture 5 is pushed into the recess 1 a of the frame 1 by the mounting cover 6, and the elastic piece 5 a at the tip of the fixture 5 presses the protruding portion of the bearing outer ring 3 b and the periphery of the housing hole 2. When pressing is performed by the elastic piece 5a at the tip of the fixing tool 5, the outer ring 3b of the bearing 3 is fixed to the housing hole 2, and the creep phenomenon of the bearing can be prevented.

なお本実施の形態では、固定具が取付けカバーに一体的に形成されていたが、これに限定されるわけでなく、両者を分離させてもよい。   In the present embodiment, the fixture is integrally formed on the mounting cover, but the present invention is not limited to this, and both may be separated.

本発明に係るミシンの回転軸支持部分を示した概略配置図である。FIG. 3 is a schematic arrangement view showing a rotating shaft support portion of the sewing machine according to the present invention. 回転軸支持装置周辺の部分断面図である。It is a fragmentary sectional view around a rotating shaft support device.

１ フレーム
２ ハウジング孔
３ 軸受
３ａ 内輪
３ｂ 外輪
４ 回転軸
５ 固定具
５ａ 弾性片
６ 取付けカバー 1 Frame 2 Housing hole 3 Bearing 3a Inner ring 3b Outer ring 4 Rotating shaft 5 Fixing tool 5a Elastic piece 6 Mounting cover

Claims (2)

ハウジング孔を有するフレームと、内輪で回転軸を支持しハウジング孔に挿嵌される軸受と、フレームのハウジング孔に対して軸受の外輪を固定する固定具とを備えたミシンの回転軸支持装置において、
ハウジング孔がフレームの窪み部に形成され、軸受の外輪をフレームのハウジング孔より突設させ、固定具がフレームの窪み部に配置されると共にフレームの窪み部を覆う取付けカバーが設けられ、固定具の先端に弾性片を設け、取付けカバーをフレームに取付ける際に取付けカバーで固定具がフレームの窪み部に押し込められながら該固定具の先端の弾性片が該外輪の突設部とハウジング孔の周辺とを押圧することでフレームのハウジング孔に対して軸受の外輪を固定するようにしたことを特徴とするミシンの回転軸支持装置。 In a rotary shaft support device for a sewing machine, comprising: a frame having a housing hole; a bearing that supports a rotary shaft by an inner ring and is fitted into the housing hole; and a fixture that fixes an outer ring of the bearing to the housing hole of the frame. ,
Housing holes are formed in the recess of the frame, the outer race of the bearing is projected from the housing hole of the frame, the mounting cover covering the recess of the frame is provided with a fixture is placed in the recess portion of the frame, the fixture An elastic piece is provided at the tip of the outer ring, and when the mounting cover is attached to the frame, the fixing piece is pushed into the recess of the frame by the mounting cover, and the elastic piece at the tip of the fixing tool is around the protruding portion of the outer ring and the housing hole. A rotating shaft support device for a sewing machine, wherein the outer ring of the bearing is fixed to the housing hole of the frame by pressing the. 固定具が取付けカバーに一体的に形成されている請求項１記載のミシンの回転軸支持装置。 2. The rotating shaft support device for a sewing machine according to claim 1, wherein the fixing member is formed integrally with the mounting cover.
JP2004227484A 2004-08-04 2004-08-04 Rotating shaft support device for sewing machine Active JP4584646B2 (en)

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JP2004227484A JP4584646B2 (en) 2004-08-04 2004-08-04 Rotating shaft support device for sewing machine
TW094123442A TW200609406A (en) 2004-08-04 2005-07-11 Sewing machine rotary shaft supporting device
CN2005100910192A CN1734001B (en) 2004-08-04 2005-08-03 Sewing machine rotary shaft supporting device

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JP2004227484A JP4584646B2 (en) 2004-08-04 2004-08-04 Rotating shaft support device for sewing machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915228B1 (en) * 2017-03-24 2018-12-28 윤종선 Air circulation apparatus for easy replacement of bearing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102864594A (en) * 2012-08-27 2013-01-09 吴江市中盛机械有限公司 Slide block pendulum for industrial sewing machine
JP6515565B2 (en) * 2014-05-27 2019-05-22 日本精工株式会社 Bearing device and fixing plate for bearing device
CN111911448A (en) * 2020-08-12 2020-11-10 高跃 Multistage centrifugal pump bearing device

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JPS5148545U (en) * 1974-10-09 1976-04-12
JPS5163762A (en) * 1974-11-06 1976-06-02 Juki Kk Mishinno nunookurisochi
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JPH0735147A (en) * 1993-07-26 1995-02-03 Hitachi Ltd Dynamo-electric machine
JP2000074079A (en) * 1998-06-17 2000-03-07 Nippon Seiko Kk Flanged rolling bearing
JP2004048887A (en) * 2002-07-10 2004-02-12 Asmo Co Ltd Brushless motor

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JPS5142654A (en) * 1974-10-04 1976-04-10 Juki Kk OOBAROTSUKUMISHINNISHOMONO NUNOOKURISADOHIORU HOHOOYOBI SOCHI
JPS5148545U (en) * 1974-10-09 1976-04-12
JPS5163762A (en) * 1974-11-06 1976-06-02 Juki Kk Mishinno nunookurisochi
JPS5523649U (en) * 1978-07-28 1980-02-15
JPS567459U (en) * 1979-06-27 1981-01-22
JPH0735147A (en) * 1993-07-26 1995-02-03 Hitachi Ltd Dynamo-electric machine
JP2000074079A (en) * 1998-06-17 2000-03-07 Nippon Seiko Kk Flanged rolling bearing
JP2004048887A (en) * 2002-07-10 2004-02-12 Asmo Co Ltd Brushless motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915228B1 (en) * 2017-03-24 2018-12-28 윤종선 Air circulation apparatus for easy replacement of bearing

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Publication number Publication date
CN1734001B (en) 2012-05-23
TWI363821B (en) 2012-05-11
CN1734001A (en) 2006-02-15
TW200609406A (en) 2006-03-16
JP2006043079A (en) 2006-02-16

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