WO2013088839A1 - Garniture d'étanchéité - Google Patents

Garniture d'étanchéité Download PDF

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Publication number
WO2013088839A1
WO2013088839A1 PCT/JP2012/077002 JP2012077002W WO2013088839A1 WO 2013088839 A1 WO2013088839 A1 WO 2013088839A1 JP 2012077002 W JP2012077002 W JP 2012077002W WO 2013088839 A1 WO2013088839 A1 WO 2013088839A1
Authority
WO
WIPO (PCT)
Prior art keywords
gasket
upper case
mounting groove
groove
main body
Prior art date
Application number
PCT/JP2012/077002
Other languages
English (en)
Japanese (ja)
Inventor
朝倉　大輔
佳則 菅原
Original Assignee
日産自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Publication of WO2013088839A1 publication Critical patent/WO2013088839A1/fr

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Classifications

    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means

Definitions

  • the present invention relates to a gasket.
  • a concave main body having one opening and a lid closing the main opening are provided, and either the main opening edge or the lid outer peripheral edge
  • a concave annular groove in which the gasket is fitted is provided on one side, and the lid is assembled to the main body with the gasket fitted in the annular groove, thereby sandwiching the gasket between the main body opening edge and the lid outer peripheral edge.
  • the pressure is applied to crush the gasket to form a fluid-tight or airtight housing.
  • a gasket inserted into such a concave groove when the gasket falls down, the fluid-tightness or airtightness performance of the housing is reduced.
  • JP2009-180283A discloses a gasket structure that prevents the falling of the gasket by providing a protrusion on both sides of the gasket facing the side of the groove and bringing the protrusion into contact with the side of the groove. ing.
  • the size of the protrusion on the side surface of the gasket must be larger than the dimension in the width direction of the groove, and the gasket must be pressed into the groove. That is, since the projections on both sides of the gasket are compressed and fitted into the grooves provided in one member of the case, it is difficult to mount the gasket in the grooves. For this reason, the projections may float without being crushed, and in particular, in the case of arranging the gasket in the member having the groove at the upper side, the gasket may fall off. In addition, when mounting the gasket in the groove, it is necessary to press the gasket into the groove while compressing the projections provided on both sides of the gasket, resulting in a problem of poor workability.
  • An object of the present invention is to provide a gasket having good workability at the time of mounting and capable of preventing falling down.
  • the gasket in one embodiment is a gasket mounted in a mounting groove provided in one of two members facing each other.
  • the gasket includes a main body having a size equal to or less than the width of the mounting groove, and a holding portion which holds the main body on one of the members separately from the main body.
  • FIG. 1 is a top view showing the whole of the gasket in the first embodiment.
  • FIG. 2 is a cross-sectional view showing a state in which the gasket in the first embodiment is sandwiched between the upper case and the lower case which are sealing members.
  • FIG. 3 is a view of the upper case with the gasket attached, as viewed from the outside of the upper case.
  • FIG. 4A is a view for explaining the depth width of the protrusion of the gasket and the snap-in guide, and shows the upper case and the lower case.
  • FIG. 4B is a view for explaining the depth width of the protrusion of the gasket and the key guide, showing the gasket.
  • FIG. 5 is a figure for demonstrating the force which acts on a gasket when inserting a gasket in the groove
  • FIG. 6 is a cross-sectional view showing a state in which the gasket in the second embodiment is sandwiched between the upper case and the lower case which are sealing members.
  • FIG. 7A is a view for explaining the depth width of the protrusion and the key guide of the gasket in the second embodiment, and shows an upper case and a lower case.
  • FIG. 7B is a view for explaining the depth width of the protrusion and the key guide of the gasket in the second embodiment, and shows the gasket.
  • FIG. 8 is a view of the state before the gasket is inserted into the upper case, as viewed from the lower side of the gasket.
  • FIG. 9 is a view of the state in which the gasket is inserted into the upper case as viewed from the lower case side.
  • FIG. 10 is a view for explaining the force acting on the gasket when inserting the gasket into the groove of the upper case.
  • FIG. 11 is a view of the upper case equipped with the gasket in the third embodiment as viewed from the outside of the upper case.
  • FIG. 12 is a view of the state in which the gasket according to the fourth embodiment is inserted into the upper case, as viewed from the lower case side.
  • FIG. 1 is a top view showing the whole of the gasket 1 in the first embodiment.
  • FIG. 2 is a cross-sectional view showing a state in which the gasket 1 in the first embodiment is sandwiched between the upper case 2 and the lower case 3 as seal members (a view showing a cross section ⁇ - ⁇ shown in FIG. 3). is there.
  • FIG. 3 is a view of the upper case 2 attached with the gasket 1 as viewed from the outside of the upper case.
  • the upper case 2 has a concave shape with one opening, and the lower case 3 serves as a lid that closes the opening of the upper case.
  • the upper case 2 is provided with a concave annular groove at the body opening edge, and the lower case 3 is assembled in a state where the annular gasket 1 is attached to the annular groove, The gasket 1 is crushed with the outer peripheral edge of the lower case 3 to form a fluid-tight or airtight housing.
  • part shown with a broken line in FIG. 2 does not exist on cross-section (alpha)-(alpha) as described in FIG. 3, but shows the arrow view (beta) as described in FIG. There is. Further, in the other drawings (in FIG. 4A, FIG. 6, and FIG. 7A described later), similarly, portions which do not exist on the cross section are indicated by broken lines.
  • the gasket 1 has a main body portion 1a mounted in a mounting groove 2a provided in the upper case 2, a projection 1b projecting from the main body portion 1a to abut the outer peripheral surface of the mounting groove 2a, and an outer surface of the upper case 2 And a key guide 1d for connecting the main body 1a and the key 1c.
  • the key 1 c of the gasket 1 is fixed so as to hook on the flange portion of the upper case 2. Subsequently, the main body portion 1 a is mounted in the mounting groove 2 a of the upper case 2 so that the upper case 2 is sandwiched between the insert 1 c and the projection 1 b of the gasket 1.
  • FIG. 4A and 4B are diagrams for explaining the depth width of the protrusion 1b of the gasket 1 and the key guide 1d.
  • FIG. 4A shows the upper case 2 and the lower case 3, and
  • FIG. 4B shows the gasket 1.
  • the depth width of the mounting groove 2a of the upper case 2 is A, and the thickness of the outer wall located between the outer peripheral surface of the mounting groove 2a of the upper case 2 to the outer surface of the upper case 2 is B.
  • the width of the main body portion 1a of the gasket 1 is C
  • the length obtained by adding the width of the protrusion 1b to the depth width of the key guide 1d is D
  • the depth width F of the protrusion 1b Is set such that the relationship of the following equation (1) holds.
  • the protrusion 1 b has a depth F equal to or less than the gap between the depth A of the mounting groove 2 a of the upper case 2 and the width C of the main body 1 a of the gasket 1. Further, since the widthwise dimension of the gasket 1 is smaller than the width of the mounting groove 2 a of the upper case 2, when the gasket 1 is mounted on the upper case 2, it is not necessary to press fit into the mounting groove 2 a.
  • the length obtained by subtracting the width F of the protrusion 1b from the depth width D of the key guide 1d is set such that the relationship of the following equation (2) holds. D ⁇ F ⁇ B (2)
  • FIG. 5 is a view for explaining the force acting on the gasket 1 when the gasket 1 is attached to the upper case 2.
  • the fitting 1 c of the gasket 1 comes out on the outer side of the upper case 2.
  • Can Even after the lower case 3 is assembled to the upper case 2 and the opening of the upper case 2 is closed, it is easy to visually confirm the omission of attachment of the gasket 1 by looking at the outside of the upper case 2 Can. That is, if there is no key 1c when looking at the outer side of the upper case 2, it is assumed that the gasket 1 is forgotten even before or after the lower case 3 is assembled to the upper case 2 It can be judged.
  • the gasket 1 in the first embodiment is a gasket mounted in a mounting groove provided in one of two members (upper case 2 and lower case 3) facing each other, A main body portion 1a having a size equal to or less than a width, and a holding portion (protrusion portion 1b, a key 1c, and a key guide 1d) for holding the main body portion 1a in one member. Since the width of the main body portion 1a is equal to or less than the width of the mounting groove, there is no need to press-fit the main body portion 1a into the mounting groove when mounting the gasket 1. As a result, the workability at the time of mounting the gasket is good, and the falling of the gasket 1 can be prevented.
  • the holding portion is a first contact portion (protrusion portion 1b) which protrudes from the outer portion 1a and contacts the outer peripheral surface of the mounting groove, and a second contact portion which extends from the main portion 1a and contacts the outer surface of one member.
  • the gasket main body is held in the mounting groove by sandwiching one of the members at the first contact portion and the second contact portion. Thereby, even if it does not press fit the main-body part 1a of the gasket 1 to a mounting groove, the gasket 1 can be hold
  • the second contact portion (placement 1c) contacts the outer surface of the outer case 2 which is one member, the lower case 3 is assembled to the upper case 2 by looking at the outer side of the upper case 2. Even before or after assembly, it is possible to easily visually check the omission of attachment of the gasket 1.
  • the upper case 2 occupies a large volume with respect to the protrusion for preventing falling. Therefore, it is difficult to prevent the inclination and falling of the gasket in the entire circumference of the upper case 2 with one protrusion.
  • the entire circumference of the upper case 2 is provided since the portions where the protrusion 1b, the lock 1c, and the lock guide 1d form one set are provided at a plurality of annular positions. In the above, it is possible to prevent the falling off of the gasket 1 while preventing the falling down of the gasket 1.
  • FIG. 6 is a cross-sectional view showing a state in which the gasket 1A in the second embodiment is sandwiched between the upper case 2 and the lower case 3 as sealing members.
  • the gasket 1A includes a main body 1a mounted in the mounting groove 2a, a projection 1bb projecting from the main body 1a and in contact with the inner peripheral surface of the mounting groove 2a of the upper case 2; A cove 1c in contact with the outer surface 2 and a coup 1d connecting the main body 1a and the coe 1c are provided.
  • FIGS. 7A and 7B are views for explaining the depth width of the protrusion 1bb and the key guide 1d of the gasket 1A in the second embodiment.
  • FIG. 7A shows the upper case 2 and the lower case 3
  • FIG. 7B shows the gasket 1A.
  • the depth width of the mounting groove 2a of the upper case 2 is A, and the thickness of the outer wall located between the outer peripheral surface of the mounting groove 2a of the upper case 2 to the outer surface of the upper case 2 is B.
  • the depth width F of the protrusion 1bb has the following relationship (3) To set. F ⁇ (A ⁇ C) (3)
  • the widthwise dimension including the main portion 1a and the projection 1bb of the gasket 1A is smaller than the width of the mounting groove 2a of the upper case 2, it is not necessary to press fit the gasket 1A into the mounting groove 2a when mounting the gasket. .
  • FIG. 8 is a view for explaining the relationship between the width G of the key guide 1 d of the gasket 1 A and the width H of the key guide groove 2 b of the upper case 2.
  • the key guide groove 2 b is a groove which communicates with the mounting groove 2 a and extends in the outer peripheral direction of the upper case 2.
  • the width G of the key guide 1d is the width in the short direction perpendicular to the longitudinal direction of the key guide 1d
  • the width H of the key guide groove 2b is the width G of the key guide 1d.
  • the width of the direction corresponding to The width G of the key guide 1d and the width H of the key guide groove 2b have the following relationship (4). H ⁇ G (4)
  • FIG. 9 is a view of the state in which the gasket 1A is inserted into the upper case 2 as viewed from the lower case 3 side, that is, a view as viewed in the direction of the arrow Y1 of FIG.
  • the key guide 1d of the gasket 1A is press-fit into the key guide groove 2b.
  • FIG. 10 is a view for explaining the force acting on the gasket 1A when the gasket 1A is inserted into the mounting groove 2a of the upper case 2. As shown in FIG.
  • the mounting groove 2a of the upper case 2 is pulled while pulling the gasket 1A in the inward direction of the upper case 2 with the key 1c in contact with the outer surface of the upper case 2.
  • Push in (arrow Y2) the key guide 1d of the gasket 1A is press-fit (inserted with a filling rate of 100% or more) into the key guide groove 2b of the upper case 2 (see FIG. 9). Accordingly, since the gasket 1A is held by the friction between the guide 1d of the gasket 1A and the guide groove 2b, the gasket 1A does not come off the upper case 2.
  • a reaction force (F4) is generated due to the friction between the projection 1bb of the gasket 1A and the inner wall of the mounting groove 2a, and a rotational moment (F5) is generated in the gasket 1A.
  • a reaction force (F6) is generated by the frictional force between the key guide 1d and the key guide groove 2b, causing the gasket 1A to fall. It can be suppressed.
  • the width of the main body portion 1a is equal to or less than the width of the mounting groove 2a, as in the gasket 1 in the first embodiment. There is no need to press-fit the main body portion 1a into the mounting groove 2a. As a result, the workability at the time of mounting the gasket is good, and the falling of the gasket 1 can be prevented.
  • the upper case 2 which is one member has a groove 2b communicating with the mounting groove 2a and extending in the outer peripheral direction of the upper case 2.
  • the gasket 1A extends from the main body 1a. It is a press-fit part (placement guide 1d) which is press-fitted into the groove part 2b of this.
  • the gasket 1A can be held in the mounting groove 2a without pressing the main body portion 1a of the gasket 1A into the mounting groove 2a.
  • FIG. 11 is a view of the upper case 2 on which the gasket 1B according to the third embodiment is mounted, viewed from the outside of the upper case 2.
  • the length of the retainer 1cc (length in the vertical direction in the figure) in the direction opposite to the direction in which the gasket 1B is attached to the upper case 2 is the gasket 1 of the first embodiment. Longer than the length of peg 1c.
  • the fitting 1cc extends in the direction opposite to the direction in which the gasket 1B is attached to the upper case 2 and covers the flange portion of the upper case 2 when attached to the upper case 2.
  • the mousse 1cc acts as a protective wall that prevents direct contact to the seal site against water spouting from the outside.
  • FIG. 12 is a view of the state in which the gasket 1C in the fourth embodiment is inserted into the upper case 2 as viewed from the lower case 3 side.
  • the core guide comprises a wide portion 1d1 and a narrow portion 1d2.
  • the wide portion 1d1 is connected to the fitting 1c and has the same width as the fitting guide 1d of the gasket 1A in the second embodiment.
  • the narrow portion 1d2 is not in contact with the key guide groove 2b in a state where the gasket 1C is mounted on the upper case 2, but a projection 1e which protrudes in the width direction to a portion near the main body 1a of the gasket 1C. Have.
  • the width of the protrusion 1 e is substantially the same as the width of the wide portion 1 d 1. Therefore, when inserting the gasket 1 C into the upper case 2, press-fit the wide portion 1 d 1 of the key guide and the projection 1 e into the key guide groove 2 b of the upper case 2 (with a filling rate of 100% or more insert. This can prevent the gasket 1C from falling off the upper case 2.
  • the gasket 1C is held on the upper case 2 by the projection 1e provided at the narrow portion 1d2.
  • FIG. 1 shows a configuration in which the portion where the protrusion 1b, the fitting 1c, and the fitting guide 1d form one set is provided at eight annular locations, the setting location and the number of settings are as follows: The design can be changed as appropriate.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention se rapporte à une garniture d'étanchéité qui est montée dans une rainure de montage appartenant à un élément d'une paire d'éléments placés en regard l'un de l'autre, et qui comprend : une section corps principal dont la taille n'est pas supérieure à la largeur de la rainure de montage ; et une section de retenue qui est séparée de la section corps principal et qui la retient par un élément.
PCT/JP2012/077002 2011-12-13 2012-10-18 Garniture d'étanchéité WO2013088839A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-272140 2011-12-13
JP2011272140A JP5862263B2 (ja) 2011-12-13 2011-12-13 ガスケット

Publications (1)

Publication Number Publication Date
WO2013088839A1 true WO2013088839A1 (fr) 2013-06-20

Family

ID=48612296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/077002 WO2013088839A1 (fr) 2011-12-13 2012-10-18 Garniture d'étanchéité

Country Status (2)

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JP (1) JP5862263B2 (fr)
WO (1) WO2013088839A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016023779A (ja) * 2014-07-23 2016-02-08 株式会社豊田自動織機 防水ケース
JP2016114076A (ja) * 2014-12-11 2016-06-23 内山工業株式会社 ガスケット組付確認構造

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114588U (fr) * 1980-02-04 1981-09-03
JPS5925744U (ja) * 1982-08-10 1984-02-17 内山工業株式会社 脱落防止付ガスケツト
JPS628352U (fr) * 1985-07-01 1987-01-19
JPH09112699A (ja) * 1995-10-17 1997-05-02 Sumitomo Wiring Syst Ltd シール部材の取付け構造
JPH109395A (ja) * 1996-06-28 1998-01-13 Nok Corp ガスケット
JP2006329400A (ja) * 2005-05-30 2006-12-07 Kitz Corp アクチュエータ等のガスケット装着用機器
JP2009250272A (ja) * 2008-04-01 2009-10-29 Yamada Seisakusho Co Ltd パッキン材の取付構造

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5081004B2 (ja) * 2008-01-30 2012-11-21 日本メクトロン株式会社 ガスケット

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114588U (fr) * 1980-02-04 1981-09-03
JPS5925744U (ja) * 1982-08-10 1984-02-17 内山工業株式会社 脱落防止付ガスケツト
JPS628352U (fr) * 1985-07-01 1987-01-19
JPH09112699A (ja) * 1995-10-17 1997-05-02 Sumitomo Wiring Syst Ltd シール部材の取付け構造
JPH109395A (ja) * 1996-06-28 1998-01-13 Nok Corp ガスケット
JP2006329400A (ja) * 2005-05-30 2006-12-07 Kitz Corp アクチュエータ等のガスケット装着用機器
JP2009250272A (ja) * 2008-04-01 2009-10-29 Yamada Seisakusho Co Ltd パッキン材の取付構造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016023779A (ja) * 2014-07-23 2016-02-08 株式会社豊田自動織機 防水ケース
JP2016114076A (ja) * 2014-12-11 2016-06-23 内山工業株式会社 ガスケット組付確認構造

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JP5862263B2 (ja) 2016-02-16
JP2013124684A (ja) 2013-06-24

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