JP2005337441A - Seal structure - Google Patents

Seal structure Download PDF

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Publication number
JP2005337441A
JP2005337441A JP2004159321A JP2004159321A JP2005337441A JP 2005337441 A JP2005337441 A JP 2005337441A JP 2004159321 A JP2004159321 A JP 2004159321A JP 2004159321 A JP2004159321 A JP 2004159321A JP 2005337441 A JP2005337441 A JP 2005337441A
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Japan
Prior art keywords
seal
needle bar
looper
outer peripheral
needle
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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.)
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JP2004159321A
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Japanese (ja)
Inventor
Takashi Mizusaki
隆 水崎
Masato Okabe
正人 岡部
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Yamato Sewing Machine Mfg Co Ltd
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Yamato Sewing Machine Mfg Co Ltd
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Application filed by Yamato Sewing Machine Mfg Co Ltd filed Critical Yamato Sewing Machine Mfg Co Ltd
Priority to JP2004159321A priority Critical patent/JP2005337441A/en
Priority to TW094116715A priority patent/TWI284715B/en
Priority to KR1020050044139A priority patent/KR100956288B1/en
Priority to CNB2005100759427A priority patent/CN100383420C/en
Publication of JP2005337441A publication Critical patent/JP2005337441A/en
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B71/00—Lubricating or cooling devices
    • D05B71/02—Loop-taker lubricating 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2205/00—Interface between the operator and the machine
    • D05D2205/32—Safety devices; Security devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seal structure capable of preventing a seal member from coming out of a guide member and enabling the replacement of the seal member. <P>SOLUTION: A needle bar 12 is guided by a tubular needle bar receiving members 29 and 30 and reciprocatingly and displaceably driven in the axial direction. Needle bar seal members 33 and 34 comprise outer peripheral base parts 40, oil seal parts 50, and dust seal parts 52, and are fitted to the needle bar receiving members 29 and 30 by the outer peripheral base part 40. A contact face 53 supporting the axial displacements of the needle bar receiving members 29 and 30 is formed on the outer peripheral base part 40. Thus, the outer peripheral base part 40 can be prevented from being axially displaced relative to the needle bar receiving members 29 and 30. As a result, even if the needle bar seal members 33 and 34 are fitted to a needle bar 12 reciprocatingly and displaceably driven, the needle bar seal members 33 and 34 can be securely prevented from coming out of the needle bar receiving members 29 and 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、軸線方向に往復変位する駆動軸のシール構造に関する。   The present invention relates to a seal structure for a drive shaft that reciprocates in the axial direction.

図９は、従来の技術のミシン１の針棒２に関連する構成の一部を示す断面図である。図１０は、従来の技術のミシン１の針棒２に関連する構成の一部を示す分解斜視図である。従来の技術は、特許文献１に記載されている。特許文献１に記載されているミシン１の漏油防止装置は、軸線方向に往復変位される針棒２、針棒２を軸線方向に案内する針棒受部材３、および針棒２に供給される潤滑油を掻き取る針棒シール部材４を備える。針棒シール部材４の内周面４ａを、針棒受部材３の外周面３ａに当接させて、針棒シール部材４が針棒受部材３に外嵌されて装着されている。   FIG. 9 is a cross-sectional view showing a part of the configuration related to the needle bar 2 of the conventional sewing machine 1. FIG. 10 is an exploded perspective view showing a part of the configuration related to the needle bar 2 of the conventional sewing machine 1. The conventional technique is described in Patent Document 1. The oil leakage prevention device for the sewing machine 1 described in Patent Document 1 is supplied to the needle bar 2 that is reciprocally displaced in the axial direction, the needle bar receiving member 3 that guides the needle bar 2 in the axial direction, and the needle bar 2. A needle bar seal member 4 for scraping off the lubricating oil. The needle bar seal member 4 is fitted on the needle bar receiving member 3 so that the inner peripheral surface 4 a of the needle bar seal member 4 is brought into contact with the outer peripheral surface 3 a of the needle bar receiving member 3.

特開２００４−１０５５１６号公報JP 2004-105516 A

前述の従来の技術では、針棒シール部材４は、軸線方向に往復変位駆動される針棒２に当接しているので、針棒２が往復変位駆動されることによって、針棒シール部材４と針棒２と摺動抵抗が作用する。この摺動抵抗によって、針棒受部材３から針棒シール部材４が離脱するおそれがある。   In the above-described conventional technique, the needle bar seal member 4 is in contact with the needle bar 2 that is driven to reciprocate in the axial direction, so that when the needle bar 2 is driven to reciprocate, the needle bar seal member 4 The needle bar 2 and sliding resistance act. Due to this sliding resistance, the needle bar seal member 4 may be detached from the needle bar receiving member 3.

このような課題を解決する手段として、前述の従来の技術では、針棒シール部材４を針棒受部材３に接着剤を用いて、針棒シール部材４と針棒受部材３と接着し、針棒シール部材４が針棒受部材３から離脱することを防止している。針棒シール部材４は針棒２に当接しているので、使用するにつれて針棒シール部材４は摺動抵抗によって摩耗し、針棒２から潤滑油を掻取効果が低下する。この場合に、針棒シール部材４を新たな針棒シール部材４に交換する必要があるが、針棒シール部材４が針棒受部材３に接着剤によって接着されているので、接着剤を除去する必要があり、交換作業が困難である。   As means for solving such a problem, in the above-described conventional technique, the needle bar seal member 4 is bonded to the needle bar seal member 4 and the needle bar receiver 3 using an adhesive to the needle bar receiver 3, The needle bar seal member 4 is prevented from being detached from the needle bar receiving member 3. Since the needle bar seal member 4 is in contact with the needle bar 2, as the needle bar seal member 4 is used, the needle bar seal member 4 is worn by sliding resistance, and the effect of scraping the lubricating oil from the needle bar 2 decreases. In this case, it is necessary to replace the needle bar seal member 4 with a new needle bar seal member 4. However, since the needle bar seal member 4 is bonded to the needle bar receiving member 3 with an adhesive, the adhesive is removed. The replacement work is difficult.

したがって本発明の目的は、シール部材が案内部材から離脱することを防ぎ、シール部材を交換することができるシール構造を提供することである。   Accordingly, an object of the present invention is to provide a seal structure that prevents the seal member from being detached from the guide member and allows the seal member to be replaced.

本発明は、筒状の案内部材と、
案内部材を同軸に挿通して軸線方向に往復変位駆動される駆動軸と、
案内部材に装着される基部と、内周部が駆動軸の外周面に弾発的に当接するシール部とを有するシール部材とを含むシール構造であって、
基部および案内部材のうちいずれか一方には、基部および案内部材のうちいずれか他方の軸線方向の変位に対して支持する当接面が形成されることを特徴とするシール構造である。 The present invention includes a cylindrical guide member;
A drive shaft that is coaxially inserted through the guide member and driven to reciprocate in the axial direction;
A seal structure including a base portion mounted on the guide member and a seal member having a seal portion in which an inner peripheral portion elastically contacts the outer peripheral surface of the drive shaft;
One of the base and the guide member is formed with a contact surface that supports the displacement of the other of the base and the guide member in the axial direction.

本発明に従えば、駆動軸は、筒状の案内部材によって案内されて、軸線方向に往復変位駆動される。シール部材は、基部およびシール部を有し、基部によって案内部材に装着される。シール部材が案内部材に装着されると、シール部の内周部は、駆動軸の外周面に弾発的に当接するので、駆動軸が往復変位駆動されることによって、駆動軸の外周面に付着している、たとえば潤滑油および微粒子を掻取ることができる。基部および案内部材のうちいずれか一方には、基部および案内部材のうちいずれか他方の軸線方向の変位に対して支持する当接面が形成される。このような当接面が形成されることによって、駆動軸が軸線方向に往復変位駆動され、駆動軸とシール部とに働く摺動抵抗によって、基部が案内部に対して軸線方向に変位することを防止することができる。したがって往復変位駆動される駆動軸に設けられるシール部材であっても、案内部材からシール部材が離脱することを確実に防ぐことができる。   According to the present invention, the drive shaft is guided by the cylindrical guide member and driven to reciprocate in the axial direction. The seal member has a base portion and a seal portion, and is attached to the guide member by the base portion. When the seal member is attached to the guide member, the inner peripheral portion of the seal portion elastically abuts on the outer peripheral surface of the drive shaft. Adhering, for example, lubricating oil and particulates can be scraped off. Either one of the base and the guide member is formed with a contact surface that supports the displacement of the other of the base and the guide member in the axial direction. By forming such a contact surface, the drive shaft is driven to reciprocate in the axial direction, and the base portion is displaced in the axial direction with respect to the guide portion by the sliding resistance acting on the drive shaft and the seal portion. Can be prevented. Therefore, even if the seal member is provided on the drive shaft that is driven to reciprocate, the seal member can be reliably prevented from being detached from the guide member.

また本発明は、基部および案内部材のいずれか一方には当接面を形成する嵌合凸部が形成され、
基部および案内部材のいずれか他方には、嵌合凸部に嵌り込む嵌合凹部が形成されることを特徴とする。 Further, in the present invention, either one of the base portion and the guide member is formed with a fitting convex portion that forms a contact surface,
The other of the base part and the guide member is formed with a fitting concave part that fits into the fitting convex part.

本発明に従えば、基部および案内部材のいずれか一方には当接面を形成する嵌合凸部が形成され、基部および案内部材のいずれか他方には、嵌合凸部に嵌り込む嵌合凹部が形成される。したがって嵌合凸部が嵌合凹部に嵌り込むことによって、基部が案内部材に対して軸線方向に変位することを確実に防ぐことができる。したがって嵌合凹部および嵌合凸部のような簡単な構造によって、シール部材が案内部材から離脱することを確実に防ぐことができる。   According to the present invention, either one of the base portion and the guide member is formed with a fitting convex portion that forms a contact surface, and the other of the base portion and the guide member is fitted into the fitting convex portion. A recess is formed. Therefore, when the fitting convex portion is fitted into the fitting concave portion, the base portion can be reliably prevented from being displaced in the axial direction with respect to the guide member. Therefore, it is possible to reliably prevent the seal member from being detached from the guide member by a simple structure such as the fitting concave portion and the fitting convex portion.

さらに本発明は、駆動軸は、ミシンの縫い針を保持するための針棒であって、
シール部材は、案内部材に外嵌されて装着されることを特徴とする。 Further, according to the present invention, the drive shaft is a needle bar for holding the sewing needle of the sewing machine,
The seal member is mounted by being fitted on the guide member.

本発明に従えば、ミシンの縫い針に関連して、案内部材がシール部材から離脱することを防止するシール構造を実現することができる。   According to the present invention, it is possible to realize a seal structure that prevents the guide member from being detached from the seal member in connection with the sewing needle of the sewing machine.

さらに本発明は、駆動軸は、ミシンのルーパを保持するためのルーパ棒であって、
シール部材は、案内部材に外嵌されて装着されることを特徴とする。 Further, according to the present invention, the drive shaft is a looper bar for holding the looper of the sewing machine,
The seal member is mounted by being fitted on the guide member.

本発明に従えば、ミシンのルーパを保持するためのルーパ棒に関連して、案内部材がシール部材から離脱することを防止するシール構造を実現することができる。   According to the present invention, it is possible to realize a seal structure that prevents the guide member from being detached from the seal member in relation to the looper bar for holding the looper of the sewing machine.

本発明によれば、当接面が形成されることによって、駆動軸が軸線方向に往復変位駆動され、駆動軸とシール部とに働く摺動抵抗によって、基部が案内部に対して軸線方向に変位することを防止することができる。したがって往復変位駆動される駆動軸に設けられるシール部材であっても、案内部材からシール部材が離脱することを確実に防ぐことができる。またシール部材を新たなシール部材に交換する場合、作業者はシール部材を案内部材の軸線方向に対して傾けることによって、シール部材を案内部材から離脱させることができる。これによってシール部材を交換する場合には、容易に交換することができる。   According to the present invention, since the contact surface is formed, the drive shaft is reciprocally driven in the axial direction, and the base portion is axially moved with respect to the guide portion by the sliding resistance acting on the drive shaft and the seal portion. Displacement can be prevented. Therefore, even if the seal member is provided on the drive shaft that is driven to reciprocate, the seal member can be reliably prevented from being detached from the guide member. When the seal member is replaced with a new seal member, the operator can remove the seal member from the guide member by tilting the seal member with respect to the axial direction of the guide member. Thus, when the seal member is replaced, it can be easily replaced.

また本発明によれば、嵌合凹部および嵌合凸部のような簡単な構造によって、シール部材が案内部材から離脱することを確実に防ぐことができる。   Moreover, according to this invention, it can prevent reliably that a sealing member detach | leaves from a guide member with simple structures, such as a fitting recessed part and a fitting convex part.

さらに本発明によれば、ミシンの縫い針に関連して、案内部材がシール部材から離脱することを防止するシール構造を実現することができる。   Furthermore, according to the present invention, it is possible to realize a seal structure that prevents the guide member from being detached from the seal member in relation to the sewing needle of the sewing machine.

さらに本発明によれば、ミシンのルーパを保持するためのルーパ棒に関連して、案内部材がシール部材から離脱することを防止するシール構造を実現することができる。   Furthermore, according to the present invention, it is possible to realize a seal structure that prevents the guide member from being detached from the seal member in relation to the looper bar for holding the looper of the sewing machine.

図１は、本発明の実施の一形態であるシール構造１０の針棒１２に関連する構成の一部を示す断面図である。図２は、図１の一部を拡大して示す断面図である。図３は、シール構造１０を備えるミシン１１を示す斜視図である。図４は、シール構造の針棒１２に関連する構成を示す斜視図である。たとえば工業用ミシンであるミシン１１は、被縫製物（図示省略）を、針板１５と押え金１６とによって挟み、送り歯（図示省略）によって予め定める送り方向Ｂへを送りながら、針１７を上下の針駆動方向Ｃ１，Ｃ２へ往復動させ、被縫製物を縫製することができる。以下、針駆動方向一方Ｃ１を上方Ｃ１といい、針駆動方向他方Ｃ２を下方Ｃ２という場合がある。   FIG. 1 is a cross-sectional view showing a part of a configuration related to a needle bar 12 of a seal structure 10 according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view showing a part of FIG. FIG. 3 is a perspective view showing the sewing machine 11 including the seal structure 10. FIG. 4 is a perspective view showing a configuration related to the needle bar 12 having a seal structure. For example, the sewing machine 11, which is an industrial sewing machine, sandwiches a workpiece (not shown) between a needle plate 15 and a presser foot 16 and feeds a needle 17 while feeding it in a predetermined feed direction B with a feed dog (not shown). The workpiece can be sewn by reciprocating in the upper and lower needle driving directions C1 and C2. Hereinafter, the needle driving direction one C1 may be referred to as an upper C1, and the needle driving direction other C2 may be referred to as a lower C2.

ミシン１１は、内部に針１７などを駆動する駆動機構などが収納されるハウジングとして機能する中空のミシン本体２３を備える。ミシン本体２３は、針板１５が設けられるベッド２０と、ベッド２０の一端部から立ち上がる柱２１と、柱２１の上端部からベッド２０に沿って延びるアーム２２とを有し、略Ｃ字状に形成される。   The sewing machine 11 includes a hollow sewing machine body 23 that functions as a housing in which a drive mechanism for driving the needle 17 and the like is housed. The sewing machine main body 23 includes a bed 20 provided with a needle plate 15, a column 21 rising from one end of the bed 20, and an arm 22 extending from the upper end of the column 21 along the bed 20. It is formed.

アーム２２の針板１５の上方に配置される部分において、アーム２２の内部空間３１を、一対の側壁部と協働して規定する天井部２７および底部２８には、筒状の針棒受部材２９，３０がそれぞれ固定されている。案内部材である各針棒受部材２９，３０は、各軸線を上下方向に配置して、同軸に設けられている。これら各針棒受部材２９，３０を同軸挿通して、駆動軸である針棒１２が、その軸線Ｌ１２を上下方向に配置して、少なくとも軸線方向一端部である下端部２５を、アーム２２からベッド２０に向けて下方へ突出させて設けられている。本実施の形態では、針棒１２は、アーム２２を上下方向に挿通し、軸線方向他端部である上端部２６が、アーム２２から上方へ突出されている。   A cylindrical needle bar receiving member is provided on the ceiling portion 27 and the bottom portion 28 that define the inner space 31 of the arm 22 in cooperation with the pair of side wall portions in a portion disposed above the needle plate 15 of the arm 22. 29 and 30 are fixed, respectively. The needle bar receiving members 29 and 30 which are guide members are provided coaxially with their axes arranged in the vertical direction. These needle bar receiving members 29 and 30 are coaxially inserted so that the needle bar 12 serving as the drive shaft has its axis L12 disposed in the vertical direction and at least the lower end 25 serving as one end in the axial direction from the arm 22. It protrudes downward toward the bed 20. In the present embodiment, the needle bar 12 passes through the arm 22 in the vertical direction, and the upper end portion 26 that is the other end portion in the axial direction protrudes upward from the arm 22.

針棒１２は、各針棒受部材２９，３０に支持および案内されて、その軸線Ｌ１２に沿って変位自在であり、針棒１２は、少なくとも各針棒受部材２９，３０に案内される軸部分４５の外周面が、円筒状に形成され、各針棒受部材２９，３０は、円筒状に形成される。針棒１２は、図示外の駆動源から動力が伝達されて、軸線Ｌ１２に沿う方向である針駆動方向Ｃ１，Ｃ２へ往復変位駆動される。ミシン１１では、駆動源からの動力を針棒１２に伝える上軸（図示外）が、たとえば回転速度６０００ｍｉｎ−１で回転されており、針棒１２は、たとえば２０ｍｍ以上５０ｍｍ以下程度、本実施の形態では、３１ｍｍ以上３３ｍｍ以下程度のストロークを、毎分６０００回往復変位駆動される。このとき針棒１２の最高変位速度は、たとえば６０００ｍｍ／秒以上６５００ｍｍ／秒以下程度である。この針棒１２の下端部２５に、針１７が設けられ、針１７が変位駆動される。 The needle bar 12 is supported and guided by the needle bar receiving members 29 and 30 and can be displaced along the axis L12. The needle bar 12 is a shaft guided by at least the needle bar receiving members 29 and 30. The outer peripheral surface of the portion 45 is formed in a cylindrical shape, and each needle bar receiving member 29, 30 is formed in a cylindrical shape. The needle bar 12 is driven to reciprocate in the needle drive directions C1 and C2, which are directions along the axis L12, by receiving power from a drive source (not shown). In the sewing machine 11, an upper shaft (not shown) that transmits power from the drive source to the needle bar 12 is rotated at, for example, a rotational speed of 6000 min −1 , and the needle bar 12 is, for example, about 20 mm or more and 50 mm or less. In the embodiment, a reciprocating displacement drive is performed 6000 times per minute with a stroke of about 31 mm to 33 mm. At this time, the maximum displacement speed of the needle bar 12 is, for example, about 6000 mm / second or more and 6500 mm / second or less. A needle 17 is provided at the lower end 25 of the needle bar 12, and the needle 17 is driven to be displaced.

針棒１２の円滑な変位を達成するために、針棒１２には、アーム２２内で、潤滑油が供給され、針棒１２と各針棒受部材２９，３０との間が潤滑される。この潤滑油が、アーム２２外に漏れることを防ぐために、各針棒受部材２９，３０に、筒状のシール部材である針棒シール部材３３，３４がそれぞれ、同軸に装着される。アーム２２の天井部２７に設けられる上側の針棒受部材２９に装着される上側の針棒シール部材３３は、針棒受部材２９の上端部に設けられる。またアーム２２の底部２８に設けられる下側の針棒受部材３０に装着される下側の針棒シール部材３４は、針棒受部材３０の下端部に設けられる。このように各針棒シール部材３３，３４は、各針棒受部材２９，３０の潤滑油が供給される位置とは反対側の端部に、したがってアーム２２に関して外方側となる端部に設けられる。つまり、各針棒シール部材３３，３４は、針棒１２と針棒受部材２９，３０との間の潤滑位置４４に対してアーム２２の外方側に設けられる。   In order to achieve a smooth displacement of the needle bar 12, lubricating oil is supplied to the needle bar 12 within the arm 22, and the space between the needle bar 12 and the needle bar receiving members 29 and 30 is lubricated. In order to prevent this lubricating oil from leaking out of the arm 22, needle bar seal members 33 and 34, which are cylindrical seal members, are mounted coaxially on the needle bar receiving members 29 and 30, respectively. The upper needle bar seal member 33 attached to the upper needle bar receiver 29 provided on the ceiling 27 of the arm 22 is provided at the upper end of the needle bar receiver 29. The lower needle bar seal member 34 attached to the lower needle bar receiver 30 provided on the bottom 28 of the arm 22 is provided at the lower end of the needle bar receiver 30. As described above, the needle bar seal members 33 and 34 are arranged at the ends of the needle bar receiving members 29 and 30 opposite to the positions where the lubricating oil is supplied, and thus at the ends on the outer side with respect to the arm 22. Provided. That is, the needle bar seal members 33 and 34 are provided on the outer side of the arm 22 with respect to the lubrication position 44 between the needle bar 12 and the needle bar receiving members 29 and 30.

各針棒シール部材３３，３４は、針棒１２の軸線Ｌ１２に沿う方向に関して、したがって上下方向に関して、対称に構成されるので、図１に示す下側の針棒シール部材３４について詳細に説明し、上側の針棒シール部材３３については、詳細な説明を省略する。下側の針棒シール部材３４は、基部である外周基部４０と、外周基部４０の内側に設けられる内周当接部４１と、外周基部４０と内周当接部４１とを連結する連結部４２とを有する。外周基部４０は、大略的に円筒状に形成され、内周当接部４１よりも、潤滑油によって潤滑される潤滑位置４４側に突出している。この外周基部４０内に針棒受部材３０の下端部が嵌まり込んで、外周基部４０の内周面４６を針棒受部材３０の外周面４７に密に当接させて、針棒シール部材３４が、針棒受部材３０に外嵌されて装着される。潤滑位置４４は、針棒１２と針棒受部材３０とが半径方向に、潤滑油を挟んで対向している位置である。針棒受部材３０に装着された状態で、外周基部４０の内周面４６であって、針棒受部材３０の外周面４７に当接している内周面４６を除く残余の内周面４６ｂは、軸線方向下端部に向かうにつれて、縮径するように形成される。   Since each needle bar seal member 33, 34 is configured symmetrically with respect to the direction along the axis L12 of the needle bar 12, and thus with respect to the vertical direction, the lower needle bar seal member 34 shown in FIG. 1 will be described in detail. Detailed description of the upper needle bar seal member 33 is omitted. The lower needle bar seal member 34 includes an outer peripheral base 40 that is a base, an inner peripheral abutting portion 41 provided inside the outer peripheral base 40, and a connecting portion that connects the outer peripheral base 40 and the inner peripheral abutting portion 41. 42. The outer peripheral base 40 is formed in a substantially cylindrical shape, and protrudes from the inner peripheral abutting portion 41 toward the lubrication position 44 that is lubricated by the lubricating oil. The lower end portion of the needle bar receiving member 30 is fitted into the outer peripheral base portion 40, and the inner peripheral surface 46 of the outer peripheral base portion 40 is brought into close contact with the outer peripheral surface 47 of the needle bar receiving member 30, so 34 is externally fitted to the needle bar receiving member 30 and mounted. The lubrication position 44 is a position where the needle bar 12 and the needle bar receiving member 30 are opposed to each other with the lubricating oil interposed therebetween in the radial direction. The remaining inner peripheral surface 46 b excluding the inner peripheral surface 46 that is in contact with the outer peripheral surface 47 of the needle bar receiving member 30, which is the inner peripheral surface 46 of the outer peripheral base 40 in a state of being attached to the needle bar receiving member 30. Is formed so as to decrease in diameter as it goes toward the lower end in the axial direction.

針棒受部材３０に装着された状態で、針棒シール部材３４の内周部である内周当接部４１は、潤滑位置４４よりもアーム２２の外方側、したがって潤滑油が供給される位置に対して離反する側に設けられ、この潤滑位置４４の外方側で、針棒１２の外周面４８に接触する。内周当接部４１は、シール部であるオイルシール部５０およびダストシール部５２を有する。オイルシール部５０およびダストシール部５２は、針棒１２の外周面４８に弾発的に当接する。   In the state where the needle bar receiving member 30 is mounted, the inner peripheral abutment part 41 which is the inner peripheral part of the needle bar seal member 34 is supplied to the outer side of the arm 22 from the lubrication position 44, and hence the lubricating oil is supplied. It is provided on the side away from the position, and contacts the outer peripheral surface 48 of the needle bar 12 on the outer side of the lubrication position 44. The inner circumferential contact portion 41 includes an oil seal portion 50 and a dust seal portion 52 that are seal portions. The oil seal portion 50 and the dust seal portion 52 elastically contact the outer peripheral surface 48 of the needle bar 12.

外周基部４０には、針棒受部材３０の軸線方向の変位に対して支持する当接面５３が形成される。当接面５３は、少なくとも針棒受部材３０の軸線方向に対して、傾斜する面を有する。本実施の形態では、当接面５３を形成する嵌合凸部５４が外周基部４０に形成され、針棒受部材３０には、嵌合凸部５４に嵌り込む嵌合凹部５５が形成される。嵌合凸部５４は、外周基部４０の内周面部４６ａであって、半径方向内方に突出し、軸線を含む仮想平面で嵌合凸部５４を切断した形状が円弧状に形成される。嵌合凸部５４は、外周基部４０の軸線方向に関して同位置であって、周方向全周にわたって設けられる。針棒受部材３０に装着された状態で、嵌合凸部５４は、内周当接部４１よりもアーム２２の内方側に形成される。また嵌合凸部５４は、外周基部４０の軸線方向上部に形成される。また針棒受部材３０に装着された状態で、外周基部４０の内周面４６であって、針棒受部材３０の外周面４７に当接している内周面４６の軸線方向中心部よりも上方の位置に、嵌合凸部５４は形成される。嵌合凹部５５は、針棒受部材３０の外周面部４７ａであって、半径方向内方に凹となり、軸線を含む仮想平面で嵌合凸部５４を切断した形状が円弧状に形成される。嵌合凹部５５は、針棒受部材３０の軸線方向に関して同位置であって、周方向全周にわたって設けられる。   The outer peripheral base 40 is formed with a contact surface 53 that supports the displacement of the needle bar receiving member 30 in the axial direction. The contact surface 53 has a surface that is inclined with respect to at least the axial direction of the needle bar receiving member 30. In the present embodiment, the fitting convex portion 54 that forms the contact surface 53 is formed on the outer peripheral base 40, and the fitting concave portion 55 that fits into the fitting convex portion 54 is formed on the needle bar receiving member 30. . The fitting convex portion 54 is an inner peripheral surface portion 46a of the outer peripheral base portion 40, protrudes inward in the radial direction, and a shape obtained by cutting the fitting convex portion 54 in a virtual plane including the axis is formed in an arc shape. The fitting convex portion 54 is provided at the same position in the axial direction of the outer peripheral base portion 40 and is provided over the entire circumference in the circumferential direction. In a state where the needle bar receiving member 30 is mounted, the fitting convex portion 54 is formed on the inner side of the arm 22 with respect to the inner circumferential contact portion 41. Further, the fitting convex portion 54 is formed at the upper part in the axial direction of the outer peripheral base portion 40. In addition, the inner peripheral surface 46 of the outer peripheral base 40 in a state of being attached to the needle bar receiving member 30, more than the axial center portion of the inner peripheral surface 46 contacting the outer peripheral surface 47 of the needle bar receiving member 30. The fitting convex part 54 is formed in the upper position. The fitting concave portion 55 is an outer peripheral surface portion 47a of the needle bar receiving member 30, and is concave inward in the radial direction, and a shape obtained by cutting the fitting convex portion 54 in a virtual plane including the axis is formed in an arc shape. The fitting recess 55 is located at the same position in the axial direction of the needle bar receiving member 30 and is provided over the entire circumference in the circumferential direction.

この針棒シール部材３４に針棒１２が挿通される状態で、内周当接部４１は、半径方向外方に拡開されるように弾性変形され、オイルシール部５０およびダストシール部５２は、針棒１２の外周面４８に弾発的に当接している。   In a state where the needle bar 12 is inserted into the needle bar seal member 34, the inner peripheral abutment portion 41 is elastically deformed so as to expand outward in the radial direction, and the oil seal portion 50 and the dust seal portion 52 are The needle bar 12 is elastically in contact with the outer peripheral surface 48.

図５は、シール構造１０のルーパ棒６０に関連する構成を示す斜視図である。図６は、シール構造１０のルーパ棒６０に関連する構成の一部を正面側から見て示す断面図である。図７は、シール構造１０のルーパ棒６０に関連する構成の一部を平面側から見て示す断面図である。図８は、シール構造１０のルーパ棒６０に関連する構成の一部を拡大して示す断面図である。図７では、理解を容易にするため、一部を断面にして示す。ベッド２０の内部において、針板１５の下方にはルーパ機構部６１が設けられる。   FIG. 5 is a perspective view showing a configuration related to the looper bar 60 of the seal structure 10. FIG. 6 is a cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10 as seen from the front side. FIG. 7 is a cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10 as seen from the plane side. FIG. 8 is an enlarged cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10. In FIG. 7, a part is shown in cross section for easy understanding. Inside the bed 20, a looper mechanism 61 is provided below the needle plate 15.

ルーパ機構部６１が備えるルーパ６２は、針板１５の下方において、針落ち位置の後側に沿い、進出方向Ｅ１に変位する進出動作と針落ち位置の前側に沿い、退入方向Ｅ２に変位する退入動作とを行い、この動作は針１７の往復変位に同期するように制御される。ルーパ６２は、進出動作時に上方Ｃ１に変位する針１７の後側に形成された針糸のループを捉えて引き出し、退入時に自身の後側に残したルーパ糸を下方Ｃ２に変位する針１７により捉えさせて、被縫製物の裏面に針糸とルーパ糸とが他糸ルーピングされた縫い目を形成する。   The looper 62 provided in the looper mechanism portion 61 is disposed below the needle plate 15 along the rear side of the needle drop position, along an advance operation that moves in the advance direction E1 and along the front side of the needle drop position, and moves in the retreat direction E2. A retreat operation is performed, and this operation is controlled to synchronize with the reciprocating displacement of the needle 17. The looper 62 catches and pulls out the loop of the needle thread formed on the rear side of the needle 17 that is displaced upward C1 during the advance operation, and the needle 17 that displaces the looper thread left behind on the retractor 62 in the downward direction C2 when retracted. Thus, a seam in which the needle thread and the looper thread are looped with another thread is formed on the back surface of the workpiece.

ルーパ６２は、針１７の針駆動方向Ｃ１，Ｃ２と略直交する仮想平面内において被縫製物の送り方向Ｂと略直交する方向である進退方向Ｅ１，Ｅ２を長軸とし、針落ち位置を中心とする所定幅の長円軌跡に沿った動作する。ルーパ６０は、他の駆動軸であるルーパ棒６０の一端部にルーパ台６４を介して取り付けられている。   The looper 62 has a major axis in advance and retreat directions E1 and E2 which are directions substantially orthogonal to the feed direction B of the sewing object in a virtual plane substantially orthogonal to the needle drive directions C1 and C2 of the needle 17, and the needle drop position is the center. It moves along an ellipse locus of a predetermined width. The looper 60 is attached to one end of a looper rod 60 that is another drive shaft via a looper base 64.

ルーパ棒６０の軸線Ｌ６０は、針１７の針駆動方向Ｃ１，Ｃ２および被縫製物の送り方向Ｂと略直交する方向と略平行となるように配置される。ルーパ棒６０は、他の案内部材であるルーパ棒受部材６６を同軸に挿通して設けられ、少なくとも軸線方向一端部をルーパ棒受部材６６から突出させて設けられている。ルーパ棒６０は、ルーパ棒受部材６６に支持および案内されて、その軸線Ｌ６０に沿って変位自在であり、軸線周りに角変位自在である。またルーパ棒６０は、ルーパ棒ガイド６５に形成されるガイド孔７４に沿うスライダ７３の摺動により案内され、軸線Ｌ６０に沿って変位自在である。   The axis L60 of the looper bar 60 is disposed so as to be substantially parallel to a direction substantially orthogonal to the needle driving directions C1 and C2 of the needle 17 and the feed direction B of the sewing product. The looper bar 60 is provided by coaxially inserting a looper bar receiving member 66 that is another guide member, and is provided with at least one axial end portion protruding from the looper bar receiving member 66. The looper bar 60 is supported and guided by the looper bar receiving member 66, and can be displaced along its axis L60, and can be angularly displaced around the axis. Further, the looper bar 60 is guided by sliding of the slider 73 along the guide hole 74 formed in the looper bar guide 65, and can be displaced along the axis L60.

ルーパ棒ガイド６５の一側部には、ルーパロッド７７が突設され、これは、同側に平行をなして配された下軸６８に、ルーパ前後エキセン７１およびルーパ前後ロッド７２を介して連結されている。この構成によってルーパ棒ガイド６５には、下軸６８の回転に応じたルーパ前後エキセン７１の動作によってルーパロッド７７を介して押し引き力が作用する。この作用力が、ルーパ棒ガイド６５からスライダ７３を介してルーパ棒６０に伝わり、ルーパ棒６０は、針１７の往復変位駆動に連動する下軸６８の回転に同期して軸回りに揺動する。   A looper rod 77 protrudes from one side of the looper bar guide 65 and is connected to a lower shaft 68 arranged in parallel to the same side via a looper front / rear eccentric 71 and a looper front / rear rod 72. ing. With this configuration, a push / pull force is applied to the looper rod guide 65 via the looper rod 77 by the operation of the looper front / rear eccentric 71 in accordance with the rotation of the lower shaft 68. This acting force is transmitted from the looper bar guide 65 to the looper bar 60 via the slider 73, and the looper bar 60 swings around the axis in synchronization with the rotation of the lower shaft 68 interlocked with the reciprocating displacement drive of the needle 17. .

ルーパ棒ガイド６５に支持されたルーパ棒６０の下部には、ルーパ棒６０の軸線Ｌ６０と略直交させてルーパ軸６９が配してあり、ルーパ軸６９にその基部を嵌着されたルーパ振り腕７０の先端がルーパ棒６０に係合されている。ルーパ軸６９は、図示しないクランク機構により下軸６８に連繋させてあり、下軸６８の回転に応じて軸線周りに揺動する揺動軸である。   A looper shaft 69 is disposed at a lower portion of the looper rod 60 supported by the looper rod guide 65 so as to be substantially orthogonal to the axis L60 of the looper rod 60. The tip of 70 is engaged with the looper bar 60. The looper shaft 69 is connected to the lower shaft 68 by a crank mechanism (not shown), and is a swing shaft that swings around the axis line in accordance with the rotation of the lower shaft 68.

ルーパ機構部６１の前述のような構成によって、ルーパ棒６０は、ルーパ棒ガイド６５とともに軸線周りに揺動し、またルーパ振り腕７０の揺動に伴って軸線方向に所定ストロークの進退動作とする。これらの動作は、針１７の往復変位駆動に連動する下軸６８の軸線周りの回転に伴って生じる。ルーパ棒６０の一端部に設けられるルーパ６２は、ルーパ台６４の介在により軸心を外して取り付けられているので、ルーパ６２は、進退方向Ｅ１，Ｅ２を長軸とし、揺動する角度に対応する幅を有する長円形の軌跡に沿って動作する。この動作軌跡の内側にて生じる針１７の往復変位駆動との協動によって、前述したような縫い目が形成される。   Due to the above-described configuration of the looper mechanism 61, the looper bar 60 swings around the axis together with the looper bar guide 65, and moves forward and backward in the axial direction along with the swing of the looper swing arm 70. . These operations occur with the rotation of the lower shaft 68 around the axis line in conjunction with the reciprocating displacement driving of the needle 17. Since the looper 62 provided at one end of the looper rod 60 is attached with the shaft center removed by the intervention of the looper base 64, the looper 62 has a major axis in the forward and backward directions E1 and E2 and corresponds to a swing angle. It moves along an oval trajectory with a width of The seam as described above is formed by the cooperation with the reciprocating displacement drive of the needle 17 generated inside the movement locus.

ルーパ棒６０は、少なくともルーパ棒受部材６６に案内される軸部分６７の外周面が、円筒状に形成され、ルーパ棒受部材６６は、円筒状に形成される。ルーパ棒６０は、図示外の駆動源から動力が伝達されて、軸線Ｌ６０に沿う方向である進退方向Ｅ１，Ｅ２へ往復変位駆動される。   In the looper rod 60, at least the outer peripheral surface of the shaft portion 67 guided by the looper rod receiving member 66 is formed in a cylindrical shape, and the looper rod receiving member 66 is formed in a cylindrical shape. The looper rod 60 is driven to reciprocate in forward and backward directions E1, E2 which are directions along the axis L60 when power is transmitted from a drive source (not shown).

ルーパ棒６０の円滑な変位を達成するために、ルーパ棒６０には、ルーパ棒受部材６６内で、潤滑油が供給され、ルーパ棒６０とルーパ棒受部材６６との間が潤滑される。この潤滑油が、ルーパ棒受部材６６外に漏れることを防ぐために、ルーパ棒受部材６６に、筒状の他のシール部材であるルーパ棒シール部材７５がそれぞれ、同軸に装着される。ルーパ棒シール部材７５は、ルーパ棒受部材６６の潤滑油が供給される位置とは反対側の端部に設けられる。   In order to achieve smooth displacement of the looper bar 60, lubricating oil is supplied to the looper bar 60 within the looper bar receiving member 66, and the space between the looper bar 60 and the looper bar receiving member 66 is lubricated. In order to prevent this lubricating oil from leaking out of the looper bar receiving member 66, a looper bar seal member 75, which is another cylindrical sealing member, is coaxially mounted on the looper bar receiving member 66. The looper bar seal member 75 is provided at the end of the looper bar receiving member 66 opposite to the position where the lubricating oil is supplied.

ルーパ棒シール部材７５は、針棒シール部材３３，３４と類似しており、ルーパ棒シール部材７５の構成には前述の針棒シール部材３４における対応する構成と同一の参照符号を付し、異なる構成についてだけ説明し、同様の構成については説明を省略することがある。   The looper bar seal member 75 is similar to the needle bar seal members 33 and 34, and the configuration of the looper bar seal member 75 is assigned the same reference numeral as the corresponding configuration in the needle bar seal member 34 described above, and is different. Only the configuration will be described, and description of similar configurations may be omitted.

他の基部である外周基部８０と、外周基部８０の内側に設けられる内周当接部８１と、外周基部８０と内周当接部８１とを連結する連結部８２とを有する。外周基部８０は、大略的に円筒状に形成され、内周当接部８１よりも、潤滑油によって潤滑される潤滑位置７６側に突出している。このルーパ棒シール部材７５は、ルーパ棒受部材６６の一端部に、外周部が残余の部分に比べて半径方向内方に退避して形成される凸部９０に嵌まり込んで、外周基部８０の内周面８６をルーパ棒受部材６６の凸部９０の外周面８７に密に当接させて、ルーパ棒シール部材７５が、ルーパ棒受部材６６に外嵌されて装着される。潤滑位置７６は、ルーパ棒６０とルーパ棒受部材６６とが半径方向に、潤滑油を挟んで対向している位置である。   It has the outer periphery base 80 which is another base, the inner periphery contact part 81 provided inside the outer periphery base 80, and the connection part 82 which connects the outer periphery base 80 and the inner periphery contact part 81. The outer peripheral base 80 is generally formed in a cylindrical shape, and protrudes from the inner peripheral abutting portion 81 toward the lubrication position 76 that is lubricated by the lubricating oil. The looper rod seal member 75 is fitted into a convex portion 90 formed at one end portion of the looper rod receiving member 66 so that the outer peripheral portion is retracted radially inward as compared with the remaining portion. The inner peripheral surface 86 of the looper rod receiving member 66 is brought into close contact with the outer peripheral surface 87 of the convex portion 90 of the looper rod receiving member 66, and the looper rod sealing member 75 is fitted onto the looper rod receiving member 66. The lubrication position 76 is a position where the looper bar 60 and the looper bar receiving member 66 are opposed to each other in the radial direction with the lubricating oil interposed therebetween.

ルーパ棒受部材６６に装着された状態で、ルーパ棒シール部材７５の内周部である内周当接部８１は、潤滑油が供給される位置に対して離反する側に設けられ、この潤滑位置７６の外方側で、ルーパ棒６０の外周面８８に接触する。内周当接部８１は、他のシール部であるオイルシール部８３およびダストシール部８４を有する。オイルシール部８３およびダストシール部８４は、ルーパ棒６０の外周面８８に弾発的に当接する。   When mounted on the looper rod receiving member 66, the inner circumferential contact portion 81, which is the inner circumferential portion of the looper rod seal member 75, is provided on the side away from the position where the lubricating oil is supplied. The outer surface 88 of the looper bar 60 contacts the outer side of the position 76. The inner peripheral contact portion 81 has an oil seal portion 83 and a dust seal portion 84 which are other seal portions. The oil seal portion 83 and the dust seal portion 84 abut on the outer peripheral surface 88 of the looper bar 60 elastically.

外周基部８０には、ルーパ棒受部材６６の軸線方向の変位に対して支持する当接面５３が形成される。当接面５３は、少なくともルーパ棒受部材６６の軸線方向に対して、傾斜する面を有する。本実施の形態では、当接面５３を形成する嵌合凸部５４が外周基部８０に形成され、ルーパ棒受部材６６には、嵌合凸部５４に嵌り込む嵌合凹部５５が形成される。嵌合凸部５４は、外周基部８０の内周面部であって、半径方向内方に突出し、軸線を含む仮想平面で嵌合凸部５４を切断した形状が円弧状に形成される。嵌合凸部５４は、外周基部８０の軸線方向に関して同位置であって、周方向全周にわたって設けられる。嵌合凹部５５は、ルーパ棒受部材６６の外周面部８７であって、半径方向内方に凹となり、軸線を含む仮想平面で嵌合凸部５４を切断した形状が円弧状に形成される。嵌合凹部５５は、ルーパ棒受部材６６の軸線方向に関して同位置であって、周方向全周にわたって設けられる。嵌合凸部５４は、円弧の中心が、外周基部８０の内周面８６から半径方向内方の位置となるように形成される。ルーパ棒シール部材７５は、外周基部８０に関して、各針棒シール部材３３，３４の外周基部４０と同様の配置構成を有する。   A contact surface 53 that supports the displacement of the looper bar receiving member 66 in the axial direction is formed on the outer peripheral base 80. The contact surface 53 has a surface that is inclined with respect to at least the axial direction of the looper bar receiving member 66. In the present embodiment, the fitting convex portion 54 that forms the contact surface 53 is formed on the outer peripheral base 80, and the fitting concave portion 55 that fits into the fitting convex portion 54 is formed on the looper bar receiving member 66. . The fitting convex portion 54 is an inner peripheral surface portion of the outer peripheral base portion 80 and protrudes inward in the radial direction, and a shape obtained by cutting the fitting convex portion 54 in a virtual plane including the axis is formed in an arc shape. The fitting convex portion 54 is provided at the same position in the axial direction of the outer peripheral base 80 and is provided over the entire circumference in the circumferential direction. The fitting concave portion 55 is an outer peripheral surface portion 87 of the looper bar receiving member 66 and is concave inward in the radial direction, and a shape obtained by cutting the fitting convex portion 54 in a virtual plane including the axis is formed in an arc shape. The fitting recess 55 is provided at the same position in the axial direction of the looper rod receiving member 66 and is provided over the entire circumference. The fitting convex portion 54 is formed such that the center of the circular arc is positioned radially inward from the inner peripheral surface 86 of the outer peripheral base portion 80. The looper bar seal member 75 has an arrangement configuration similar to that of the outer periphery base 40 of each needle bar seal member 33, 34 with respect to the outer periphery base 80.

以上説明した本実施の形態のシール構造１０によれば、針棒１２およびルーパ棒６０（以下、総称するとき「駆動軸」ということがある）は、筒状の各針棒受部材２９，３０およびルーパ棒受部材６６（以下、総称するとき「案内部材」ということがある）によって案内されて、軸線方向に往復変位駆動される。針棒シール部材３３，３４およびルーパ棒シール部材７５（以下、総称するとき「シール部材」ということがある）は、外周基部４０，８０およびオイルシール部５０，８３およびダストシール部５２，８４（以下、総称するとき「シール部」ということがある）を有し、外周基部４０，８０によって案内部材２９，３０，６６に装着される。シール部材３３，３４，７５が案内部材２９，３０，６６に装着されると、シール部５０，５２，８３，８４の内周部は、駆動軸１２，６０の外周面に弾発的に当接するので、駆動軸１２，６０が往復変位駆動されることによって、駆動軸１２，６０の外周面に付着している潤滑油および微粒子を掻取ることができる。外周基部４０，８０には、案内部材２９，３０，６６の軸線方向の変位に対して支持する当接面５３が形成される。このような当接面５３が形成されることによって、駆動軸１２，６０が軸線方向に往復変位駆動され、駆動軸１２，６０とシール部５０，５２，８３，８４とに働く摺動抵抗によって、外周基部４０，８０が案内部材２９，３０，６６に対して軸線方向に変位することを防止することができる。したがって往復変位駆動される駆動軸１２，６０に設けられるシール部材３３，３４，７５であっても、案内部材２９，３０，６６からシール部材３３，３４，７５が離脱することを確実に防ぐことができる。また潤滑油によって潤滑されて駆動軸１２，６０から離脱しやすいシール部材３３，３４，７５であっても、本発明の構成によって案内部材２９，３０，６６からシール部材３３，３４，７５が離脱することを確実に防ぐことができる。したがって従来の技術のように接着剤を用いて案内部材２９，３０，６６とシール部材３３，３４，７５とを接着する必要がないので、作業者はシール部材３３，３４，７５を容易に交換することができる。特に前述のように工業用ミシンにおける高速でかつ高い周期で往復変位駆動される針棒１２およびルーパ棒６０に、好適に用いることができる。   According to the seal structure 10 of the present embodiment described above, the needle bar 12 and the looper bar 60 (hereinafter sometimes collectively referred to as “driving shaft”) are provided with cylindrical needle bar receiving members 29, 30. Further, it is guided by a looper rod receiving member 66 (hereinafter sometimes referred to as a “guide member”) and driven to reciprocate in the axial direction. The needle bar seal members 33 and 34 and the looper bar seal member 75 (hereinafter sometimes collectively referred to as “seal members”) include outer peripheral base portions 40 and 80, oil seal portions 50 and 83, and dust seal portions 52 and 84 (hereinafter referred to as “seal members”). , Sometimes referred to as a “seal portion”), and are attached to the guide members 29, 30, 66 by the outer peripheral base portions 40, 80. When the seal members 33, 34, and 75 are attached to the guide members 29, 30, and 66, the inner peripheral portions of the seal portions 50, 52, 83, and 84 are elastically applied to the outer peripheral surfaces of the drive shafts 12 and 60. Therefore, when the drive shafts 12 and 60 are driven to reciprocate, the lubricating oil and fine particles adhering to the outer peripheral surfaces of the drive shafts 12 and 60 can be scraped off. Abutting surfaces 53 that support the displacement of the guide members 29, 30, 66 in the axial direction are formed on the outer peripheral bases 40, 80. By forming such a contact surface 53, the drive shafts 12, 60 are driven to reciprocate in the axial direction, and by the sliding resistance acting on the drive shafts 12, 60 and the seal portions 50, 52, 83, 84. The outer peripheral bases 40 and 80 can be prevented from being displaced in the axial direction with respect to the guide members 29, 30 and 66. Therefore, even if the seal members 33, 34, and 75 are provided on the drive shafts 12 and 60 that are driven to reciprocate, the seal members 33, 34, and 75 are reliably prevented from being detached from the guide members 29, 30, and 66. Can do. Further, even if the seal members 33, 34, 75 are lubricated by the lubricating oil and easily detached from the drive shafts 12, 60, the seal members 33, 34, 75 are detached from the guide members 29, 30, 66 by the configuration of the present invention. Can be surely prevented. Therefore, it is not necessary to bond the guide members 29, 30, 66 and the seal members 33, 34, 75 using an adhesive as in the prior art, so that the operator can easily replace the seal members 33, 34, 75. can do. In particular, it can be suitably used for the needle bar 12 and the looper bar 60 that are driven to reciprocate at high speed and with a high cycle in an industrial sewing machine as described above.

またシール部材３３，３４，７５を新たなシール部材３３，３４，７５に交換する場合、作業者はシール部材３３，３４，７５を案内部材２９，３０，６６の軸線に対して傾けることによって、シール部材３３，３４，７５を案内部材２９，３０，６６から容易に離脱させることができる。これによってシール部材３３，３４，７５を交換する場合には、容易に交換することができる。   When the seal members 33, 34, and 75 are replaced with new seal members 33, 34, and 75, the operator tilts the seal members 33, 34, and 75 with respect to the axis of the guide members 29, 30, and 66, The seal members 33, 34, and 75 can be easily detached from the guide members 29, 30, and 66. Accordingly, when the seal members 33, 34, and 75 are replaced, they can be easily replaced.

また、外周基部４０，８０には当接面５３を形成する嵌合凸部５４が形成され、案内部材２９，３０，６６には、嵌合凸部５４に嵌り込む嵌合凹部５５が形成される。したがって嵌合凸部５４が嵌合凹部５５に嵌り込むことによって、外周基部４０，８０が案内部材２９，３０，６６に対して軸線方向に変位することを確実に防ぐことができる。したがって嵌合凹部５５および嵌合凸部５４のような簡単な嵌合構造によって、シール部材３３，３４，７５が案内部材２９，３０，６６から離脱することを確実に防ぐことができる。   Further, a fitting convex portion 54 that forms the contact surface 53 is formed on the outer peripheral base portions 40 and 80, and a fitting concave portion 55 that fits into the fitting convex portion 54 is formed on the guide members 29, 30, and 66. The Therefore, by fitting the fitting convex portion 54 into the fitting concave portion 55, it is possible to reliably prevent the outer peripheral base portions 40, 80 from being displaced in the axial direction with respect to the guide members 29, 30, 66. Therefore, it is possible to reliably prevent the seal members 33, 34, 75 from being detached from the guide members 29, 30, 66 by a simple fitting structure such as the fitting concave portion 55 and the fitting convex portion 54.

また嵌合凸部５４は、外周基部４０，８０の内周面部であって、半径方向内方に突出し、軸線を含む仮想平面で嵌合凸部５４を切断した形状が円弧状に形成される。したがってシール部材３３，３４，７５を案内部材２９，３０，６６に装着する場合、嵌合凸部５４が案内部材２９，３０，６６の外周面部４０，８０に引っ掛かることなく、嵌合凹部５５まで案内される。これによって作業者は、シール部材３３，３４，７５を案内部材２９，３０，６６に容易に装着することができる。   Further, the fitting convex portion 54 is an inner peripheral surface portion of the outer peripheral base portions 40 and 80 and protrudes inward in the radial direction, and a shape obtained by cutting the fitting convex portion 54 in a virtual plane including the axis is formed in an arc shape. . Therefore, when the seal members 33, 34, and 75 are attached to the guide members 29, 30, and 66, the fitting convex portion 54 does not get caught by the outer peripheral surface portions 40 and 80 of the guiding members 29, 30, and 66 and reaches the fitting concave portion 55. Guided. As a result, the operator can easily attach the seal members 33, 34, 75 to the guide members 29, 30, 66.

また嵌合凸部５４および嵌合凹部５５は、それぞれ周方向全周にわたって設けられる。したがって嵌合凸部５４および嵌合凹部５５は、シール部材３３，３４，７５および案内部材２９，３０，６６の各軸線が同軸となるように位置決めすることができる。これによってシール部５０，５２，８３，８４を駆動軸に好適に当接させることができ、シール部５０，５２，８３，８４の掻き取り効果を周方向にわたって偏ることなく均等に与える構成を実現することができる。また嵌合凸部５４および嵌合凹部５５は、それぞれ周方向全周にわたって設けられことによって、作業者が案内部材２９，３０，６６にシール部材３３，３４，７５を装着するときに、周方向の位置決めする必要がないので、容易に装着することができる。   Moreover, the fitting convex part 54 and the fitting recessed part 55 are each provided over the circumferential direction perimeter. Therefore, the fitting convex portion 54 and the fitting concave portion 55 can be positioned so that the axes of the seal members 33, 34, and 75 and the guide members 29, 30, and 66 are coaxial. As a result, the seal portions 50, 52, 83, and 84 can be suitably brought into contact with the drive shaft, and the scraping effect of the seal portions 50, 52, 83, and 84 can be evenly distributed without being biased in the circumferential direction. can do. In addition, the fitting convex portion 54 and the fitting concave portion 55 are provided over the entire circumference in the circumferential direction, so that when the operator attaches the seal members 33, 34, 75 to the guide members 29, 30, 66, the circumferential direction Since it is not necessary to position, it can be easily mounted.

また嵌合凸部５４および嵌合凹部５５は、それぞれ周方向の一部に形成されてもよい。また嵌合凸部５４および嵌合凹部５５は、それぞれ軸線方向に間隔をあけて複数形成してもよい。これによって、複数の嵌合凸部５４および嵌合凹部５５による軸線方向への変位を防ぐ効果が得られ、シール部材３３，３４，７５が案内部材２９，３０，６６から離脱する防止の効果を向上することができる。また嵌合凸部５４および嵌合凹部５５における摺動抵抗力を小さくすることが可能であり、抜け止めの効果を高くすることができる。   Moreover, the fitting convex part 54 and the fitting recessed part 55 may each be formed in a part of circumferential direction. A plurality of the fitting convex portions 54 and the fitting concave portions 55 may be formed at intervals in the axial direction. Accordingly, an effect of preventing displacement in the axial direction by the plurality of fitting convex portions 54 and the fitting concave portions 55 is obtained, and the effect of preventing the seal members 33, 34, and 75 from being detached from the guide members 29, 30, 66 is obtained. Can be improved. Moreover, the sliding resistance force in the fitting convex part 54 and the fitting concave part 55 can be reduced, and the effect of retaining can be enhanced.

針棒受部材３０に装着された状態で、嵌合凸部５４は、内周当接部４１よりもアーム２２の内方側に形成される。これによって、針棒１２が下方Ｃ２に変位駆動されると、内周当接部４１が下方Ｃ２に向かって変形する。またルーパ棒６０が進出方向Ｅ１に変位駆動されると、内周当接部８１が進出方向Ｅ１に向かって変形する。内周当接部４１，８１が変形すると連結部４２，８２は、半径方向外方の端部を中心に角変位するように変形する。このような連結部４２，８２の変形によって、外周基部４０，８０の軸線方向一端部である下端部は、半径方向外方に向かって変形し、外周基部４０，８０の軸線方向他端部である上端部は、半径方向内方に向かって変形する。したがって嵌合凸部５４は、外周基部４０，８０の軸線方向他端部に形成され、案内部材２９，３０，６６の外周面４７，８７に当接している内周面４６，８６の軸線方向中心部よりも上方Ｃ１および退入方向Ｅ２の位置に形成されることによって、嵌合状態を維持することができ、抜け止めの効果をさらに向上することができる。   In a state where the needle bar receiving member 30 is mounted, the fitting convex portion 54 is formed on the inner side of the arm 22 with respect to the inner circumferential contact portion 41. As a result, when the needle bar 12 is driven to move downward C2, the inner peripheral contact portion 41 is deformed toward the lower C2. Further, when the looper bar 60 is driven to be displaced in the advance direction E1, the inner peripheral contact portion 81 is deformed toward the advance direction E1. When the inner peripheral contact portions 41 and 81 are deformed, the connecting portions 42 and 82 are deformed so as to be angularly displaced around the radially outer end. Due to the deformation of the connecting portions 42 and 82, the lower end portion which is one end portion in the axial direction of the outer peripheral base portions 40 and 80 is deformed outward in the radial direction, and the other end portion in the axial direction of the outer peripheral base portions 40 and 80. A certain upper end part deform | transforms toward radial inside. Therefore, the fitting convex portion 54 is formed at the other axial end portion of the outer peripheral base portions 40 and 80, and in the axial direction of the inner peripheral surfaces 46 and 86 that are in contact with the outer peripheral surfaces 47 and 87 of the guide members 29, 30, and 66. By being formed at a position in the upper C1 and the retreat direction E2 from the center portion, the fitted state can be maintained, and the effect of retaining can be further improved.

また前述の実施の形態では、当接面５３は嵌合凸部５４によって実現されるが、これに限ることはない。また前述の実施の形態では、当接面５３を形成する嵌合凸部５４が外周基部４０，８０に形成され、案内部材２９，３０，６６には、嵌合凸部５４に嵌り込む嵌合凹部５５が形成されるがこれに限ることはない。当接面５３を形成する嵌合凸部５４が案内部材２９，３０，６６に形成され、外周基部４０，８０には、嵌合凸部５４に嵌り込む嵌合凹部５５が形成してもよい。これによっても同様の効果を達成することができる。   In the above-described embodiment, the contact surface 53 is realized by the fitting convex portion 54, but is not limited thereto. In the above-described embodiment, the fitting convex portion 54 that forms the contact surface 53 is formed on the outer peripheral base portions 40 and 80, and the guide members 29, 30, and 66 are fitted into the fitting convex portion 54. Although the recessed part 55 is formed, it is not restricted to this. A fitting convex portion 54 that forms the contact surface 53 may be formed on the guide members 29, 30, 66, and a fitting concave portion 55 that fits into the fitting convex portion 54 may be formed on the outer peripheral base portions 40, 80. . This also achieves the same effect.

また駆動軸１２，６０、案内部材２９，３０，６６およびシール部材３３，３４，７５が、前述のような材料の組合わせ、寸法精度および表面粗さに形成されるので、各シール部材３３，３４，７５の性能を確実に発揮し、さらに高いシール性を達成しつつ、駆動軸１２，６０の往復変位駆動によってシール部材３３，３４，７５が、案内部材２９，３０，６６から離脱することを防ぐことができる。   Further, since the drive shafts 12, 60, the guide members 29, 30, 66, and the seal members 33, 34, 75 are formed with the combination of materials, dimensional accuracy, and surface roughness as described above, the seal members 33, The seal members 33, 34, and 75 are separated from the guide members 29, 30, and 66 by the reciprocating displacement drive of the drive shafts 12, 60 while reliably performing the performances of 34, 75 and achieving higher sealing performance. Can be prevented.

また嵌合凸部５５は、軸線方向に関して、心材の半径方向内方に形成される。心材の半径方向内方に形成されることによって、嵌合凸部５５が半径方向内方に向かって押圧する力を大きくすることができる。これによって嵌合凸部５５が嵌合凹部５４から離脱することを防ぐことができる。   The fitting convex portion 55 is formed inward in the radial direction of the core material with respect to the axial direction. By being formed inward in the radial direction of the core material, it is possible to increase the force with which the fitting convex portion 55 presses inward in the radial direction. As a result, the fitting convex portion 55 can be prevented from being detached from the fitting concave portion 54.

前述の実施の形態は、本発明の例示に過ぎず、本発明の範囲内において構成を変更することができる。たとえば前述の各実施の形態を適宜組合わせるようにしてもよいし、またオイルシール部およびダストシール部の構成は、前述の実施の形態に限定されるものではない。また針棒１２およびルーパ棒６０のいずれか一方にだけ関連して、シール構造を実施するようにしてもよい。また針棒１２およびルーパ棒６０以外の駆動軸、たとえば押え金１６を保持するための押え棒に関連して、シール構造を実施するようにしてもよい。   The above-described embodiment is merely an example of the present invention, and the configuration can be changed within the scope of the present invention. For example, the above-described embodiments may be appropriately combined, and the configurations of the oil seal portion and the dust seal portion are not limited to the above-described embodiments. Further, the seal structure may be implemented only in relation to one of the needle bar 12 and the looper bar 60. The seal structure may be implemented in connection with a drive shaft other than the needle bar 12 and the looper bar 60, for example, a presser bar for holding the presser foot 16.

本発明の実施の一形態であるシール構造１０の針棒１２に関連する構成の一部を示す断面図である。It is sectional drawing which shows a part of structure relevant to the needle bar 12 of the seal structure 10 which is one Embodiment of this invention. シール構造１０の針棒１２に関連する構成の一部を拡大して示す断面図である。3 is an enlarged cross-sectional view showing a part of the configuration related to the needle bar 12 of the seal structure 10. FIG. シール構造１０を備えるミシン１１を示す斜視図である。1 is a perspective view showing a sewing machine 11 provided with a seal structure 10. FIG. シール構造の針棒１２に関連する構成を示す斜視図である。It is a perspective view which shows the structure relevant to the needle bar 12 of a seal structure. シール構造１０のルーパ棒６０に関連する構成を示す斜視図である。2 is a perspective view showing a configuration related to a looper bar 60 of the seal structure 10. FIG. シール構造１０のルーパ棒６０に関連する構成の一部を正面側から見て示す断面図である。FIG. 3 is a cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10 as viewed from the front side. シール構造１０のルーパ棒６０に関連する構成の一部を平面側から見て示す断面図である。FIG. 3 is a cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10 as viewed from the plane side. シール構造１０のルーパ棒６０に関連する構成の一部を拡大して示す断面図である。FIG. 3 is an enlarged cross-sectional view showing a part of the configuration related to the looper bar 60 of the seal structure 10. 従来の技術のミシン１の針棒２に関連する構成の一部を示す断面図である。It is sectional drawing which shows a part of structure relevant to the needle bar 2 of the sewing machine 1 of a prior art. 従来の技術のミシン１の針棒２に関連する構成の一部を示す分解斜視図である。It is a disassembled perspective view which shows a part of structure relevant to the needle bar 2 of the sewing machine 1 of a prior art.

符号の説明Explanation of symbols

１０ シール構造
１２ 針棒
２９，３０ 針棒受部材
３３，３４ 針棒シール部材
４０，８０ 外周基部
５０，８３ オイルシール部
５２，８４ ダストシール部
５３ 当接面
５４ 嵌合凸部
５５ 嵌合凹部
６０ ルーパ棒
６６ ルーパ棒受部材
７５ ルーパ棒シール部材 DESCRIPTION OF SYMBOLS 10 Seal structure 12 Needle bar 29, 30 Needle bar receiving member 33, 34 Needle bar seal member 40, 80 Outer peripheral base 50, 83 Oil seal part 52, 84 Dust seal part 53 Contact surface 54 Fitting convex part 55 Fitting concave part 60 Looper rod 66 Looper rod receiving member 75 Looper rod seal member

Claims (4)

筒状の案内部材と、
案内部材を同軸に挿通して軸線方向に往復変位駆動される駆動軸と、
案内部材に装着される基部と、内周部が駆動軸の外周面に弾発的に当接するシール部とを有するシール部材とを含むシール構造であって、
基部および案内部材のうちいずれか一方には、基部および案内部材のうちいずれか他方の軸線方向の変位に対して支持する当接面が形成されることを特徴とするシール構造。 A tubular guide member;
A drive shaft that is coaxially inserted through the guide member and driven to reciprocate in the axial direction;
A seal structure including a base portion mounted on the guide member and a seal member having a seal portion in which an inner peripheral portion elastically contacts the outer peripheral surface of the drive shaft;
One of the base and the guide member is formed with an abutment surface that supports the axial displacement of the other of the base and the guide member. 基部および案内部材のいずれか一方には当接面を形成する嵌合凸部が形成され、
基部および案内部材のいずれか他方には、嵌合凸部に嵌り込む嵌合凹部が形成されることを特徴とする請求項１に記載のシール構造。 Either one of the base and the guide member is formed with a fitting convex portion that forms a contact surface,
The sealing structure according to claim 1, wherein a fitting concave portion that fits into the fitting convex portion is formed on one of the other of the base portion and the guide member. 駆動軸は、ミシンの縫い針を保持するための針棒であって、
シール部材は、案内部材に外嵌されて装着されることを特徴とする請求項１または２記載のシール構造。 The drive shaft is a needle bar for holding the sewing needle of the sewing machine,
The seal structure according to claim 1 or 2, wherein the seal member is fitted on the guide member. 駆動軸は、ミシンのルーパを保持するためのルーパ棒であって、
シール部材は、案内部材に外嵌されて装着されることを特徴とする請求項１〜３のいずれか１つに記載のシール構造。 The drive shaft is a looper bar for holding the looper of the sewing machine,
The seal structure according to any one of claims 1 to 3, wherein the seal member is externally fitted to the guide member.
JP2004159321A 2004-05-28 2004-05-28 Seal structure Pending JP2005337441A (en)

Priority Applications (4)

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JP2004159321A JP2005337441A (en) 2004-05-28 2004-05-28 Seal structure
TW094116715A TWI284715B (en) 2004-05-28 2005-05-23 Sealing structure
KR1020050044139A KR100956288B1 (en) 2004-05-28 2005-05-25 Seal structure
CNB2005100759427A CN100383420C (en) 2004-05-28 2005-05-26 Sealing structure

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Publication number Priority date Publication date Assignee Title
JP6604070B2 (en) * 2015-07-24 2019-11-13 株式会社ジェイテクト SEALING DEVICE AND BEARING DEVICE PROVIDED WITH THE SAME

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH023001U (en) * 1988-06-20 1990-01-10
JP2000167286A (en) * 1998-12-08 2000-06-20 Yamato Sewing Mach Co Ltd Sewing machine
JP2003083014A (en) * 2001-09-14 2003-03-19 Nok Corp Valve stem seal
JP2004068888A (en) * 2002-08-05 2004-03-04 Nok Corp Valve stem seal
JP2004105516A (en) * 2002-09-19 2004-04-08 Yamato Sewing Mach Co Ltd Oil leakage preventive device of sewing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195854A (en) * 1975-10-14 1980-04-01 Jacques Bertin Shaft seal assemblies
JP3475611B2 (en) * 1995-10-27 2003-12-08 Ｎｏｋ株式会社 Sealing device
CN1086754C (en) * 1998-11-25 2002-06-26 长瑜企业股份有限公司 Sewing machine with coaxial in-time driven needle bar and upper circumferential sewing mechanism
CN2451736Y (en) * 2000-12-07 2001-10-03 丘凯 Pressure reducing elastic sealing ring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH023001U (en) * 1988-06-20 1990-01-10
JP2000167286A (en) * 1998-12-08 2000-06-20 Yamato Sewing Mach Co Ltd Sewing machine
JP2003083014A (en) * 2001-09-14 2003-03-19 Nok Corp Valve stem seal
JP2004068888A (en) * 2002-08-05 2004-03-04 Nok Corp Valve stem seal
JP2004105516A (en) * 2002-09-19 2004-04-08 Yamato Sewing Mach Co Ltd Oil leakage preventive device of sewing machine

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TWI284715B (en) 2007-08-01
CN100383420C (en) 2008-04-23
KR100956288B1 (en) 2010-05-10
TW200609438A (en) 2006-03-16
KR20060049456A (en) 2006-05-19

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