JPS6088587A - Shaft support apparatus of sewing machine - Google Patents
Shaft support apparatus of sewing machineInfo
- Publication number
- JPS6088587A JPS6088587A JP19703383A JP19703383A JPS6088587A JP S6088587 A JPS6088587 A JP S6088587A JP 19703383 A JP19703383 A JP 19703383A JP 19703383 A JP19703383 A JP 19703383A JP S6088587 A JPS6088587 A JP S6088587A
- Authority
- JP
- Japan
- Prior art keywords
- sewing machine
- bearing
- shaft
- shaft support
- bearing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sewing Machines And Sewing (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 技術分野 本発明はミシンの軸支持装置に関するものである。[Detailed description of the invention] Technical field The present invention relates to a shaft support device for a sewing machine.
従来技術
従来、工業用等の高速度ミシンにおいては、その高速運
転に伴う各軸支持部の摩擦にJ:る発熱に起因する焼f
」破損等を防止して正常な縫製作業を行うために、給油
手段を設け、前記ミシンの各所に配置された軸支1.′
J部に、IVI if°1j11区供s’r”+ ’J
るJ、うになっている。しかし、前記給油1段を設(J
ることは、前記ミシンのE1スト1′ニーを111<ば
かりか、油割れ防止対策等の煩しい問題を生じさu′(
いた。Conventional technology Conventionally, high-speed industrial sewing machines have been known to generate heat due to friction of each shaft support part due to high-speed operation.
In order to prevent damage and perform normal sewing work, a lubricating means is provided, and the shaft supports 1. ′
To the J section, IVI if°1j11 ward s'r"+ 'J
J, the sea urchin is turning. However, the above-mentioned first stage of refueling was installed (J
Not only does this increase the E1 stroke 1' knee of the sewing machine to 111<, but it also causes troublesome problems such as measures to prevent oil cracking.
there was.
Ij的
本発明は上記事情に鑑みなされたらのて′あって、その
目的は、高速麿ミシンにJjい(、軸支持部を無給油化
1′ることにある。The present invention was developed in view of the above circumstances, and its purpose is to make the shaft support part of a high-speed sewing machine oil-free.
解 ン六 手 段
前記目的を)ヱ成Jる1、−めに、本発明に、1,9い
Cは、ミシンの軸支持部に動;1空気軸受を;、旧1(
いイ)。In order to accomplish the above-mentioned object, the present invention provides an air bearing for the shaft support of the sewing machine.
i).
即ら、回動若しくGJ、軸り自移動り6軸[1ifi
It>i支承Jる軸受部Hの軸受面に、前記軸の運動に
伴い前記軸受面と軸との間に空気圧力を発生させるため
の)i4を設り−(いる。That is, rotation or GJ, axis, automatic movement, 6 axes [1ifi
It>i is provided on the bearing surface of the bearing portion H supporting the shaft to generate air pressure between the bearing surface and the shaft as the shaft moves.
実 施 例
まず、本発明を下軸支1!J部に貝1木化しlこ第一の
実lJI!!例を第1図乃至第33図を用い−(A1明
する。Implementation Example First, the present invention will be described with lower shaft support 1! This is the first fruit that has become a shellfish in the J club! ! An example will be explained using FIGS. 1 to 33.
ミシン機枠10に対し、上軸メタル(1を介し水平且つ
回動jiJ能に支承された下軸’+ 21J、プーリ1
3を介し駆動源(図示せり゛)に作動的に連結されてい
る。For the sewing machine frame 10, a lower shaft supported horizontally and rotatably through an upper shaft metal (1) + 21J, a pulley 1
3 to a drive source (not shown).
また、前記ミシン機枠10には、縦軸メタル14を介し
縦軸15が垂直に支承され、その縦軸15には前記上軸
12上に固るされた上軸歯車16と噛合する第一のM1
@歯車17が固着されている。Further, a vertical shaft 15 is vertically supported on the sewing machine frame 10 via a vertical shaft metal 14, and the vertical shaft 15 has a first gear that meshes with an upper shaft gear 16 fixed on the upper shaft 12. M1 of
@Gear 17 is fixed.
更に、前記ミシン機枠10には、第2図に明らかなよう
に、そのベッド部10aにA3いて、左右一対の支持孔
18が形成され、それぞれに下11’+hメタル1つが
それらの外周に形成の突出部20を介して圧入固定され
ている。以下、++’+I+支持部は左右同一414
造のため同一番号を符し、一方の説明を省mb−=>る
。Furthermore, as is clear from FIG. 2, in the sewing machine frame 10, a pair of right and left support holes 18 are formed at A3 in the bed portion 10a, and one lower 11'+h metal hole is formed on the outer periphery of each of the support holes 18. It is press-fitted and fixed via the formed protrusion 20. Below, the ++'+I+ support parts are the same on the left and right 414
For the sake of simplicity, the same numbers are used, and the explanation of one is omitted.
前記下軸メタル1つの内部には、低摩1察係数及び耐摩
耗性を有する耐熱性樹脂材r31、例えば、熱硬化性ポ
リイミド、熱硬化性ポリアミド等で形成の軸受部材21
が接着されている。Inside the lower shaft metal, there is a bearing member 21 made of a heat-resistant resin material R31 having a low coefficient of friction and wear resistance, such as thermosetting polyimide, thermosetting polyamide, etc.
is glued.
その軸受部材21の軸受1m22は、例えば第3図に示
すような形状の40μIll程度の深さく図中において
は説明のkめ拡大して示t)を右し且つ後述りる下軸の
回φへ方向側に突出りるV字状をなす溝23が全周に!
]す〜′間隔に多数形成されIC軸受部24と、ぞの軸
受部2 /l J:りわり゛かに内径の大きな中空部2
5とから474成されている1゜尚、前記下軸メタル1
5)ど−hl+受部月21どの接着に当って(,1、前
記軸受部2/Iど+ii+記1・+Itメタル19の突
出部20どが、同一円周上に重イfらくrい位置に配置
され、前記下す111メタル゛口)の圧入に際し、その
ひずみが軸受部2’lにIi’; 7’μノJ 、’l
−<、、いJ、うになっている。The bearing 1m22 of the bearing member 21 has a shape as shown in FIG. A V-shaped groove 23 that protrudes toward the entire circumference!
] A large number of IC bearing portions 24 and each bearing portion 2 are formed at intervals of ~'.
5 and 474. Furthermore, the lower shaft metal 1
5) When adhering the do-hl + receiving part 21 (, 1, the protruding part 20 of the metal 19 on the same circumference) When the lower 111 metal opening) is press-fitted, the strain is applied to the bearing part 2'I';
-<、、J、It's turning into a sea urchin.
前記軸受部材2′1には、−喘に外釜2(3が1−iド
ーされ、他端に前記縦軸′15に固1°゛1されIこ第
2の縦軸両市27ど噛合Jる下軸山中2Bが固j°゛「
された下軸29が挿嵌支承されている3、尚、CのF
Chl+ 29の外径は、前記軸受部4Δ21の軸受部
24の内径に対して10μo1稈1α小さくイI: ’
) L Jjす、前記軸受部材2′1及び下軸21)に
J、・ン(仙ハシ;(2気軸受が形成される。An outer hook 2 (3) is attached to the bearing member 2'1, and the other end is fixedly connected to the vertical shaft '15 by 1°. Jru lower axis Yamanaka 2B is hard j°゛"
3, in which the lower shaft 29 is inserted and supported, and F of C
The outer diameter of Chl+ 29 is 10 μo1 culm 1α smaller than the inner diameter of the bearing portion 24 of the bearing portion 4Δ21.
) A double bearing is formed on the bearing member 2'1 and the lower shaft 21).
前記軸受部4/121を挾む両側には、f)を配溝23
市U−名(’d″算の#ln 14ゝ)武l)人17ノ
i・いl −)L−it 7.1−訪一対のフェル!へ
製防塵リング30が、その軸受部材21を覆うように配
置されており、また、その防塵リング30は前記下軸メ
タル1つの内壁に形成の取(=Jり溝31に1■合支承
されている。Grooves 23 f) are provided on both sides sandwiching the bearing portion 4/121.
City U name ('d'' calculation #ln 14ゝ) person 17 noi・il -) L-it 7.1-Visiting a pair of Fells! The dustproof ring 30 made by the bearing member 21 Further, the dustproof ring 30 is supported in a groove 31 formed on the inner wall of one of the lower shaft metals.
上記のJ、うにIM成された下軸の支持装置にA3いて
その動作を説明すると、駆動源の駆動によってプーリ1
3及び上軸12は矢印A方向に回転りる。To explain the operation of the lower shaft support device A3, which is made up of IM, the pulley 1 is driven by the drive source.
3 and the upper shaft 12 rotate in the direction of arrow A.
それに伴い、縦@15及び下軸29はそれぞれ矢Ell
3方向及びC方向に回転される。イして、空気の粘性
により下軸29のごく近傍にA)いては、矢EIJ C
方向の空気流が生ずる。Accordingly, the vertical @15 and the lower axis 29 are respectively
3 direction and C direction. EIJ C
A directional airflow is created.
第3図に示づ゛ように、軸受部24近傍において前記空
気流は、1b23によってその中火部23aへ向う方向
に変えられ、更に、中空部25及び防塵リング30を介
して外部から空気が流入するようになり、その結果前記
中央部23a(=J近では空気圧が高くなる。そして、
下軸29の回転が高ン*度になると、前記空気圧は更に
高くなり、下軸29が軸受1fii 22より浮上する
ようになるため、両者間の麿擦による発熱は生じな(な
る。As shown in FIG. 3, the air flow in the vicinity of the bearing part 24 is changed by 1b23 toward the medium heat part 23a, and furthermore, air flows from the outside through the hollow part 25 and the dustproof ring 30. As a result, the air pressure becomes high near the central portion 23a (=J).
When the rotation of the lower shaft 29 reaches a high degree, the air pressure becomes higher and the lower shaft 29 floats above the bearing 1fii 22, so that no heat generation occurs due to friction between the two.
上記実施例においCは、防IQ!リンタ:30 yc
Q2すlこから1苗23が糸くす゛等の140J欠(す
、1、イン(二とがなく、安定したf’+動が11〕ら
れるど」ξに、軸受部4Δ21を低摩擦係数及び耐摩耗
性を右りる耐熱1’l樹脂4fl 113+としたから
、下Ilり1129の回り’l+が低速庶の1141で
あッT G 円if’i ニ作動Ll i!V ル+1
史に、前記!i’i 23LL軸受部+A21の成形1
1.冒こ同11冒ご形成さ]I、るからその製造は容易
に行える。In the above example, C is a defense IQ! Linta: 30 yc
One seedling 23 is missing 140J due to stringiness etc. from Q2. Since the heat-resistant 1'l resin 4fl 113+ has the right wear resistance, the rotation 'l+ of the lower Il 1129 is the low speed 1141.
In history, said! i'i 23LL bearing part + A21 molding 1
1. 11. Formation] I, its production is easy.
尚、上記実施例にiljい−(1,1、下軸29の支持
部に実施したが、上す11112及び縦軸11)の支乃
部に実施してしよいことは、ニー)J、(−L)イ農′
い1゜次に、本発明をミシンの11梓支1°1部に具1
木化した第二の実施例を第1図及び>15図4用い−c
rJi明Jる。In addition, although the above embodiment was implemented on the support part of the lower shaft 29 (1, 1), it may also be implemented on the support part of the upper shaft 11112 and the vertical shaft 11). (-L) Lee'
1゜Next, the present invention was applied to the 11th part of the 1st part of the sewing machine.
The second lignified embodiment is shown in Fig. 1 and >15 Fig. 4-c
rJi MingJru.
ミシン機枠/IOにIJ、j−1・一対の支1′J、I
L 4 ’Iが形成され、てれぞれに?1捧メタル/1
2が圧入161定されCいる。イれらに【、11、C1
1の実施例ど同)31にして軸受部材7′I3及び防囚
長リンク/I IIが取f旧Jられ、それらの軸受部)
rA /l 3にtJ: 111Aif’)J部4A
(図示Uず)の駆動に伴っC’ tL 4u動さIする
4:1イイ・4511ζ寺承されている。Sewing machine frame/IO to IJ, j-1, pair of supports 1'J, I
L 4 'I is formed and each ? 1 dedicated metal/1
2 is press-fitted at 161. Irera [, 11, C1
Same as the embodiment 1) 31, the bearing member 7'I3 and the prison guard link/I II were removed, and their bearing parts)
rA /l 3 to tJ: 111Aif') J part 4A
(not shown in the figure), C' tL 4u is moved by 4:1 II.4511ζ.
そして、銅棒45の11復動によって生ずる空気流を利
用して軸受面46と銅棒45との間の空気圧を効果的に
高めるため、イの軸受面/′IG上には、第5図に示す
ように、前記釦枠45の何れの往復動ノ)向に対しても
突出J゛るV字状をなりようなジグザグ形状をな”l’
tf’i’17が形成されているものである。In order to effectively increase the air pressure between the bearing surface 46 and the copper rod 45 by utilizing the air flow generated by the 11 reciprocal motion of the copper rod 45, the bearing surface /'IG of A is shown in FIG. As shown in FIG.
tf'i'17 is formed.
尚、第5図において、例えば、釦枠45が右方向に高速
度で移動しているとすると、溝47内には矢印方向に向
う空気流が生じ、それらがぶつかり合う場所で空気圧ツ
ノを生じ、釦枠45と軸受部46との接触が阻止される
ものである。In FIG. 5, for example, if the button frame 45 is moving rightward at high speed, an air flow in the direction of the arrow will occur in the groove 47, and an air pressure horn will be created at the place where they collide. , contact between the button frame 45 and the bearing portion 46 is prevented.
効 果
上記詳述したJ:うに本発明においてfユ、高速度ミシ
ンにおいて、その軸受部材の軸受部にfMを形成するこ
とにより動圧空気11’+b受を47.:成したから、
軸受面ど軸どの間の摩擦が小どなり、その軸の支持部を
無給油化し得るものである。Effects In the present invention described in detail above, in the high-speed sewing machine, by forming fM in the bearing portion of the bearing member, the dynamic pressure air 11'+b bearing can be made 47. :Because I accomplished it,
The friction between the bearing surface and the shaft is reduced, and the supporting portion of the shaft can be oil-free.
第1図ノリ至第3図はal−の実施例を示づしのであっ
て、第1図は下+hf+ 29の駆動系を、」智l斜杉
J図、第2図(J要部を承りIIJi面図、第33図は
軸受部材21の拡大断面図であり、J、た、u5/1図
は第二の実施例を示づ断面図、第5図+、LE−の第二
の実施例の軸受部材43の拡大断面図である。。
尚、図中10及び40はミシン1幾枠、2′1及び13
は軸受部材、22及び’l 6 Ll、 ’l’lll
受而、23及面471.L渦、30及び4/I 1.、
L防塵I一段(:、 474成ジる防塵リング、19は
F ’I’l11メタル、29は下軸、42はi1捧メ
タル、45115114・である1゜特許出願人
ブラリ“−」二梨(!11式会ン1
取In役着艮 河嶋11h−
第2図
30 20 )71(1
第3図
第5図
I!&3Fig. 1 to Fig. 3 show examples of the al-. Fig. 1 shows the drive system of the lower 33 is an enlarged cross-sectional view of the bearing member 21, J, T, and u5/1 are cross-sectional views showing the second embodiment, and FIG. It is an enlarged sectional view of the bearing member 43 of the embodiment.In the figure, 10 and 40 are the sewing machine 1 frame, 2'1 and 13.
is a bearing member, 22 and 'l 6 Ll, 'l'llll
Receipt, 23 and 471. L vortex, 30 and 4/I 1. ,
L dustproof I single stage (:, 474 formed dustproof ring, 19 is F'I'l11 metal, 29 is lower shaft, 42 is i1 dedicated metal, 1゜patent applicant Burari "-" Ninari ( !11 ceremony meeting 1 Tori In role costume Kawashima 11h- Fig. 2 30 20 ) 71 (1 Fig. 3 Fig. 5 I! & 3
Claims (1)
に固定された軸受部材(21若しく1.1:43)と、
その軸受部4J ’(21名しく 1.j、 /l 3
)に挿1■支示され且つ駆動源の駆動に1゛1′い回
部骨゛iしくは情方向移肋Jる軸(29名しくは45)
と、 +)rj記軸受部拐〈21名しくtJ、43)の軸受面
(22名しくは/I6)に形成さ(し、+’+Q記軸<
29若しくは45)の運動に伴い11ら記+lil+受
面く22若しくは46)ど軸(29ン°1しくは/l!
□5)どの間に空気圧力を発生さけるだめのi%’i
(23ン°、シ<は47)と を設()たことを特徴とりるミシンのす111支1.′
J装置。 2、前記軸受部材(2′l若しく GJ、 /+ 3
)は、ミシン機枠(10若しり1,1、/IO)に固定
された筒状のメタル(19名しくは/I2)に11NN
固定されて1、) 71;−J−左 −そのメタル(19若しくは42)に取付1ノられ、前
記軸受部材(21若しくは43)と軸(29若しくは4
5)との間に生り゛る軸受づき間へ塵jりSが侵入する
のを阻止づるための防塵手段(30若しくは44)と を段(プたことを特徴とする特許請求の範囲第1項記載
のミシンの軸支持装置。 3、+)ff記軸受部拐(21若しくは/13)は低淳
擦係数及び耐摩耗性を有する耐熱性樹脂材わ1からなる
ことを特徴とする特許請求の範囲第1Jnまたは第2項
記載のミシンの軸支持装置。[Claims] 1. Sewing machine frame (10 names) 1.1./l (n)
A bearing member (21 or 1.1:43) fixed to
Its bearing part 4J' (21 namesake 1.j, /l 3
), which is inserted into the shaft and supported by the drive source, and which rotates or moves in the direction of the drive source once (29 or 45)
+) rj bearing part (21 name tJ, 43) formed on the bearing surface (22 name /I6) (+'+Q mark axis <
Along with the movement of 29 or 45), 11 ra + lil + receiving surface 22 or 46) which axis (29 angle 1 or /l!
□5) How to avoid generating air pressure between i%'i
111 legs of a sewing machine characterized by having (23 degrees, < 47) 1. ′
J device. 2. The bearing member (2'l or GJ, /+3
) is 11NN in a cylindrical metal (19 or /I2) fixed to the sewing machine frame (10 or 1, 1, /IO).
71;-J-Left-It is attached to the metal (19 or 42) and is connected to the bearing member (21 or 43) and the shaft (29 or 4).
5) and dust prevention means (30 or 44) for preventing dust S from entering into the space between the bearings. The shaft support device for a sewing machine according to item 1. 3, +) ff The patent characterized in that the bearing part (21 or /13) is made of a heat-resistant resin material 1 having a low friction coefficient and wear resistance. A shaft support device for a sewing machine according to claim 1 or 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19703383A JPS6088587A (en) | 1983-10-20 | 1983-10-20 | Shaft support apparatus of sewing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19703383A JPS6088587A (en) | 1983-10-20 | 1983-10-20 | Shaft support apparatus of sewing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6088587A true JPS6088587A (en) | 1985-05-18 |
Family
ID=16367617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19703383A Pending JPS6088587A (en) | 1983-10-20 | 1983-10-20 | Shaft support apparatus of sewing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6088587A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52148748A (en) * | 1976-06-03 | 1977-12-10 | Skf Kugellagerfabriken Gmbh | Automatically pressure generated radial rolling bearing |
JPS5332252A (en) * | 1976-09-03 | 1978-03-27 | Philips Nv | Bearing |
JPS5597520A (en) * | 1979-01-13 | 1980-07-24 | Nippon Telegr & Teleph Corp <Ntt> | Gas bearing |
JPS5837319A (en) * | 1981-08-28 | 1983-03-04 | Aisin Seiki Co Ltd | Bearing mechanism for turbo charger |
JPS5857915A (en) * | 1981-10-02 | 1983-04-06 | Nippon Seiko Kk | Molding method of fluid bearing sleeve |
-
1983
- 1983-10-20 JP JP19703383A patent/JPS6088587A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52148748A (en) * | 1976-06-03 | 1977-12-10 | Skf Kugellagerfabriken Gmbh | Automatically pressure generated radial rolling bearing |
JPS5332252A (en) * | 1976-09-03 | 1978-03-27 | Philips Nv | Bearing |
JPS5597520A (en) * | 1979-01-13 | 1980-07-24 | Nippon Telegr & Teleph Corp <Ntt> | Gas bearing |
JPS5837319A (en) * | 1981-08-28 | 1983-03-04 | Aisin Seiki Co Ltd | Bearing mechanism for turbo charger |
JPS5857915A (en) * | 1981-10-02 | 1983-04-06 | Nippon Seiko Kk | Molding method of fluid bearing sleeve |
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