TW201530001A - Reverse rotation prevention structure for screw body - Google Patents

Reverse rotation prevention structure for screw body Download PDF

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Publication number
TW201530001A
TW201530001A TW103136962A TW103136962A TW201530001A TW 201530001 A TW201530001 A TW 201530001A TW 103136962 A TW103136962 A TW 103136962A TW 103136962 A TW103136962 A TW 103136962A TW 201530001 A TW201530001 A TW 201530001A
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TW
Taiwan
Prior art keywords
washer
receiving portion
threaded body
relative rotation
gasket
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TW103136962A
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Chinese (zh)
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TWI652413B (en
Inventor
Hiroshi Michiwaki
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Nejilaw Inc
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Publication of TWI652413B publication Critical patent/TWI652413B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30Locking exclusively by special shape of the screw-thread

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

A reverse rotation prevention structure for a screw body is provided with a screw body having a male screw-shaped screw thread, a first washer, and a second washer. The screw body has a screw body-side seat part facing the first washer. The first washer has a first receiving part facing the screw body-side seat part, and a second receiving part facing the second washer. The second washer has a third receiving part facing the second receiving part, and a fourth receiving part facing a body to be fastened having a body to be fastened-side seat part. Consequently, the rotation in a specific direction of the screw body can be reliably prevented by a simple structure.

Description

螺紋體之防止反轉結構Anti-reverse structure of threaded body

本發明係關於一種防止已鎖固的螺紋體反轉之防止反轉結構。SUMMARY OF THE INVENTION The present invention is directed to an anti-reverse structure that prevents inversion of a locked thread body.

以往,在各種情況下,為了鎖固被鎖固體而使用螺紋體。該螺紋體,為使螺線狀之溝槽形成於其柱狀外周的外螺紋體、以及螺線狀之溝槽形成於筒狀構件之內周的內螺紋體螺合之結構。Conventionally, in various cases, a threaded body has been used in order to lock a locked solid. The threaded body has a structure in which an externally threaded body having a spiral groove formed on the outer circumference of the columnar shape and a threaded groove formed on the inner circumference of the tubular member.

使用時,藉由外螺紋體***形成於被鎖固構件之孔洞使螺合內螺紋體;使被鎖固體被外螺紋體之頭部與內螺紋體之桿部夾入;而使此鎖固用之螺紋體能更方便使用,於外螺紋體之一端形成所謂六角柱體頭部的螺栓、以及外側面形成六角形柱狀的螺母所組合而成。另外,其頭部非六角形狀,而於端面形成所謂一字槽及十字槽等的小螺絲亦被廣泛使用。In use, the external thread body is inserted into the hole formed in the locked member to screw the internal thread body; the locked solid is sandwiched by the head portion of the external thread body and the rod portion of the internal thread body; The threaded body can be more conveniently used, and a bolt formed by forming a so-called hexagonal column head at one end of the externally threaded body and a nut having a hexagonal columnar shape on the outer side are combined. Further, the small head having a non-hexagonal shape on the head and forming a so-called slot and a cross recess on the end surface is also widely used.

另外,在鎖固螺紋體時,可於外螺紋體周圍***又稱墊片之墊圈,此墊圈使被鎖固體於鎖固時免於曲折與擦傷,另外藉由積極的抵接被鎖固體可抑制螺紋體之鬆弛。舉例而言,墊圈除了含有一般環狀的「平滑墊圈」之外,於內圈或外圈上有延伸至其半徑方向之凸起,其與被鎖固體或螺紋體卡合使防止鬆弛之「附舌墊圈」、軸向曲折的短爪與被鎖固體卡合之「附爪墊圈」、藉由彈性變形以防止螺紋體鬆弛之「彈簧墊圈」、以及在周圍具有卡合鎖固表面的齒牙之「附齒墊圈」(請參照日本工業規格 JIS 1251 彈簧墊圈)。In addition, when the threaded body is locked, a gasket, also called a gasket, can be inserted around the externally threaded body, and the gasket can prevent the locked solid from being bent and scratched when locked, and the solid can be locked by the positive abutment. Suppress the looseness of the threaded body. For example, in addition to a generally "smooth gasket", the gasket has a projection extending in the radial direction on the inner or outer ring, which is engaged with the locked solid or threaded body to prevent slack. "Attachment washer", a "claw washer" in which the axially bent short claw is engaged with the locked solid, a "spring washer" which is elastically deformed to prevent the loosening of the thread body, and a tooth having a snap-fit surface around it "Toothed washer" for teeth (please refer to Japanese Industrial Standard JIS 1251 Spring Washer).

然而,習知的墊圈係關於螺紋體之間的防止鬆弛結構,其摩擦與卡合之程度與效果如眾皆知並非理想。因此,在激烈震動的環境下,即使使用墊圈,亦有產生鬆弛之問題。However, conventional gaskets are not ideal for preventing the loose structure between the threaded bodies, and the degree and effect of friction and engagement are well known. Therefore, in a severely vibrating environment, even if a gasket is used, there is a problem of slack.

因此為解決上述問題,本發明的目的在於提供一種防止反轉之結構,藉由有效利用墊圈其簡易結構以防止螺紋體鬆弛。Therefore, in order to solve the above problems, it is an object of the present invention to provide a structure for preventing reverse rotation, which is capable of preventing slack of a threaded body by effectively utilizing a simple structure of a gasket.

為達上述目的,本發明提供一種螺紋體之防止反轉結構,其包含:一具有螺紋之螺紋體、一第一墊圈以及一第二墊圈;其特徵在於,該螺紋體具有一與該第一墊圈相對之螺紋體側基座,而該第一墊圈具有一與該螺紋體側基座相對之第一承受部及一與該第二墊圈相對之第二承受部,而該第二墊圈具有一與該第二承受部相對之第三承受部及一與具有被鎖固體側基座的被鎖固體相對之第四承受部;在該螺紋體側基座與該第一承受部之間構成一即使對該螺紋體側基座施加特定方向之回轉力仍可維持其相互卡合狀態之第一卡合機構,並於該第二承受部與該第三承受部之間構成一即使對該第二承受部或是該第三承受部施加特定方向之回轉力仍可維持其相互卡合狀態之第二卡合機構;該第二墊圈,於內圈表面、該第四承受部或該第四承受部周圍的其中之一,具有一至該螺紋體之軸距離為非固定的墊圈側卡合部,該墊圈側卡合部係藉由卡合於該被鎖固體之一部分或對側螺紋體之一部分所構成一即使對該第二墊圈施加特定方向之回轉力仍可維持其相互卡合狀態之第三卡合機構;藉由該第一卡合機構防止於該螺紋體與該墊圈之間所產生的該特定方向之相對轉動、且藉由該第二卡合機構防止於該第一墊圈與該第二墊圈之間所產生之該特定方向之相對轉動以及藉由該第三卡合機構防止於該第二墊圈與該被鎖固體或該對側螺紋體之間所產生之該特定方向之相對轉動,使防止該螺紋體與該被鎖固體或該對向螺紋體之間所產生之特定方向之相對轉動。In order to achieve the above object, the present invention provides an anti-reverse structure for a threaded body, comprising: a threaded body, a first washer, and a second washer; wherein the thread has one and the first The washer is opposite to the threaded body side base, and the first washer has a first receiving portion opposite to the threaded body side base and a second receiving portion opposite to the second washer, and the second washer has a second washer a third receiving portion opposite to the second receiving portion and a fourth receiving portion opposite to the locked solid having the locked solid side base; and a structure between the threaded body side base and the first receiving portion Even if the turning force of the specific direction is applied to the screw body side base, the first engaging mechanism can maintain the mutual engagement state, and between the second receiving portion and the third receiving portion, even if a second engaging portion or a third engaging portion that can maintain a mutual engagement state of the rotating force in a specific direction; the second washer, the inner ring surface, the fourth receiving portion or the fourth One of the surrounding parts, with The axial distance to the threaded body is a non-fixed washer-side engaging portion, and the washer-side engaging portion is formed by engaging one of the locked solids or a portion of the opposite-side threaded body even if the second a third engaging mechanism for the washer to apply a specific direction of rotation force to maintain the mutual engagement state; the first engaging mechanism prevents relative rotation between the threaded body and the washer in the specific direction, And preventing, by the second engaging mechanism, the relative rotation of the specific direction between the first washer and the second washer and preventing the second washer from being locked by the third engaging mechanism The relative rotation of the solid or the particular direction created between the opposing side threads prevents relative rotation of the threaded body and the particular direction produced by the locked solid or the opposing threaded body.

關於上述螺紋體之防止反轉結構,其中,該第一卡合機構或該第二卡合機構其中之一,具有一以該螺紋體之軸為中心的圓周方向傾斜之斜面,並設定其斜面之傾斜角大於該螺紋體之該螺紋所形成之導角,使防止該特定方向之相對轉動。The anti-reverse structure of the threaded body, wherein one of the first engaging mechanism or the second engaging mechanism has a sloped surface inclined in a circumferential direction around the axis of the threaded body, and the inclined surface is set The angle of inclination is greater than the angle formed by the thread of the threaded body to prevent relative rotation of the particular direction.

關於上述螺紋體之防止反轉結構,其中,作為該第一卡合機構於該螺紋體側基座形成一螺紋體側凹凸並於該第一承受部形成一與該螺紋體側凹凸卡合之第一承受部側凹凸,或者,作為前述第二卡合機構於該第二承受部形成一第二承受部側凹凸並於該第三承受部形成一與該第二承受部側凹凸卡合之第三承受部側凹凸,依該等方式防止該特定方向之相對轉動之卡合。In the anti-reverse structure of the screw body, the first engagement mechanism forms a screw body side unevenness on the screw body side base and forms a concave-convex engagement with the screw body side concave portion on the first receiving portion. The first receiving portion side unevenness or the second receiving portion forms a second receiving portion side unevenness as the second receiving portion, and the third receiving portion forms a concave and convex portion with the second receiving portion side. The third receiving portion side unevenness prevents the engagement of the relative rotation of the specific direction in such a manner.

關於上述螺紋體之防止反轉結構,其中,該凹凸於圓周方向設置鋸齒狀,該鋸齒狀為可容許與該特定方向之相對轉動反向之相對轉動,使防止該特定方向之相對轉動。In the anti-reverse structure of the screw body, the concavities and convexities are provided in a zigzag shape in the circumferential direction, and the zigzag shape is a relative rotation that can be reversed in relative rotation with respect to the specific direction to prevent relative rotation in the specific direction.

關於上述螺紋體之防止反轉結構,其中,該第二墊圈之該第四承受部具有一相對於該被鎖固體之第二墊圈側斜面;該第二墊圈側斜面向該螺紋體之軸成垂直的剖面形狀,並包含一沿該螺紋體的圓周方向位移至軸心距離的領域;藉由該第二墊圈側斜面卡合於該被鎖固體之該被鎖固體側基座,即使對該第二墊圈施加該特定方向之回轉力仍構成可維持其相互卡合狀態之該第三卡合機構。The anti-reverse structure of the threaded body, wherein the fourth receiving portion of the second washer has a second washer-side inclined surface with respect to the locked solid; the second washer side obliquely faces the shaft of the threaded body a vertical cross-sectional shape and including a field displaced in a circumferential direction of the thread body to a distance of the axial center; the second gasket side inclined surface is engaged with the locked solid side base of the locked solid, even if The second washer exerts the rotational force in the particular direction to form the third engaging mechanism that maintains its mutual engagement.

關於上述螺紋體之防止反轉結構,其中,該第二墊圈斜面含有曲折面。The anti-reverse structure of the thread body described above, wherein the second gasket bevel includes a meandering surface.

本發明雖為簡易結構的螺紋體之防止反轉,例如防止螺紋體鬆弛方向之回轉,使確保防止螺紋體的回轉鬆弛。In the present invention, the threaded body of the simple structure is prevented from being reversed, for example, the rotation of the threaded body in the loosening direction is prevented, and the rotation of the threaded body is prevented from being slack.

關於適用本發明之螺紋體20之防止反轉結構10,將參照以下圖.1-4所示加以說明;再者,若有相似之處,請忽略些許之差異,並以同樣符號表示之。The anti-reverse structure 10 to which the thread body 20 of the present invention is applied will be described with reference to the following Figs. 1-4; further, if there are similarities, some differences are omitted and indicated by the same symbols.

本發明螺紋體20之防止反轉結構10,係由一外螺紋體20或內螺紋體至少一端之螺紋體20、一與該螺紋體20抵接之第一墊圈30、一與該第一墊圈30抵接之第二墊圈40、二與該第二墊圈40抵接之被鎖固體50及51所構成之鎖固系統中,用以實現防止螺紋體20與被鎖固體50及51之間之特定方向的相對轉動R,例如回轉鬆弛等之鎖固機構。The anti-reverse structure 10 of the threaded body 20 of the present invention is an externally threaded body 20 or a threaded body 20 having at least one end of the internally threaded body, a first washer 30 abutting the threaded body 20, and a first washer 30 in the locking system formed by the abutting second washer 40 and the locked solids 50 and 51 abutting the second washer 40, for preventing the between the threaded body 20 and the locked solids 50 and 51 A relative rotation R in a specific direction, such as a locking mechanism such as a slack.

圖1為適用本發明之螺紋體20之防止反轉結構10的一實施例之立體示意圖;其中,(A)係為從斜上方俯視本鎖固系統之構成元件的展開狀態立體圖,而(B)係為從斜下方仰視本鎖固系統之構成元件的展開狀態立體圖;如圖1所示,本實施例之螺紋體20之防止反轉結構10包含一具有一外螺紋狀螺紋21之螺紋體20(雖未圖示,但亦可為外螺紋體)、一第一墊圈30以及一第二墊圈40。1 is a perspective view showing an embodiment of an anti-reverse structure 10 to which a threaded body 20 of the present invention is applied; wherein (A) is a perspective view of an unfolded state of a constituent element of the present locking system as viewed obliquely from above, and (B) Is a perspective view of the unfolded state of the constituent elements of the present locking system from obliquely downward; as shown in FIG. 1, the anti-reverse structure 10 of the threaded body 20 of the present embodiment includes a threaded body having an externally threaded thread 21. 20 (not shown, but may be an externally threaded body), a first washer 30, and a second washer 40.

該螺紋體20,具有六角柱體頭部以及與其下方相連之外螺紋部,而形成所謂一六角形狀螺栓之外螺紋體20。頭部下端邊緣形成一圓形凸緣狀之凸緣,其不限於此。該外螺紋體20之螺紋21設定於導角α,並構成可螺合形成於被鎖固體51側的螺絲攻狀之內螺紋孔53。頭部下方具有一相對於第一墊圈30之螺紋體側基座22。該螺紋體側基座22,於外螺紋體20之軸的圓周方向上,具有***且回繞狀之螺紋體側基座24。該螺紋體側基座24之各凹凸,分別於外螺紋體20之軸為中心的圓周方向上具有傾斜的傾斜面23,該傾斜面23之傾斜角θ設定為大於形成外螺紋體20之螺紋21的導角α。於此,傾斜面23之數量可設為複數個,但傾斜面23之角度傾斜角θ即可大於導角α其餘不予限定。另外,此傾斜面23設定之相位位置與圓周方向上相同,亦可適當地嵌合第一承受部側凹凸部34其餘不予限定。The threaded body 20 has a hexagonal cylinder head and a threaded portion connected to the lower portion thereof to form a so-called hexagonal bolt outer thread body 20. The lower end edge of the head is formed with a circular flange-like flange, which is not limited thereto. The thread 21 of the externally threaded body 20 is set at a guide angle α, and constitutes a screw-threaded shape that can be screwed to the side of the locked solid 51. Threaded hole 53 therein. Below the head there is a threaded body side base 22 relative to the first washer 30. The screw body side base 22 has a screw body side base 24 which is swelled and rewinded in the circumferential direction of the shaft of the male screw body 20. Each of the concavities and convexities of the threaded body side base 24 has an inclined inclined surface 23 in the circumferential direction centering on the axis of the externally threaded body 20, and the inclined angle θ of the inclined surface 23 is set larger than the thread forming the externally threaded body 20. The lead angle α of 21. Here, the number of the inclined faces 23 may be plural, but the angle of inclination θ of the inclined faces 23 may be larger than the guide angle α, and the rest is not limited. Further, the phase position of the inclined surface 23 is set to be the same as that in the circumferential direction, and the first receiving portion side uneven portion 34 may be appropriately fitted without being limited.

第一墊圈30成大致圓形狀,於中央部分穿設具有可穿通外螺紋體20之螺紋部之第一墊圈螺紋穿通孔36,並且,相對於螺紋體側基座24之第一承受部31以及相當於該第一承受部31之背面,即為相對於第二墊圈40側具有第二承受部32。第一承受部31,以嵌合螺紋體側基座24使其具有***狀而構成,並具有可嵌合於螺紋體側基座24而構成之第一承受部側凹凸部34。該第一承受部側凹凸部34之各凹凸,分別具有於外螺紋體20之軸為中心的圓周方向中傾斜的傾斜面33,該傾斜面33之傾斜角θ設定為大於形成外螺紋體20之螺紋21的導角α。於此,傾斜面33之數量雖可設定與螺紋體側基座24形成之傾斜面23相同,但傾斜面33之角度傾斜角θ即可大於導角α其餘不予限定。另外,此傾斜面33設定之相位位置與圓周方向上相同,亦可適當地嵌合第一承受部側凹凸部24其餘不予限定。第二承受部32,以嵌合第二墊圈40所形成之第三承受部41使其具有***狀而構成,並具有可嵌合於第三承受部側凹凸部43而構成之第二承受部側凹凸部35。第二承受部側凹凸部35之凹凸為圓周方向所設之鋸齒狀,而該鋸齒狀在嵌合第三承受部側凹凸部 43時,容許特定方向,即與鬆弛外螺紋體20之方向的相對轉動R反向的相對轉動,使防止該特定方向之相對轉動R而構成。於此,凹凸之數量與第三承受部側凹凸部43所形成的凹凸之數量相同,其可獲得嵌合狀態不侷限於同數量。另外,此凹凸設定之相位位置與圓周方向上相同,亦可適當地嵌合第三承受部側凹凸部43其餘不予限定。The first washer 30 has a substantially circular shape, and a first washer threaded through hole 36 having a threaded portion that can pass through the externally threaded body 20 is bored in the central portion, and the first receiving portion 31 with respect to the threaded body side base 24 and Corresponding to the back surface of the first receiving portion 31, that is, the second receiving portion 32 is provided on the second gasket 40 side. The first receiving portion 31 is formed by fitting the screw body side base 24 to have a bulging shape, and has a first receiving portion side uneven portion 34 that can be fitted to the screw body side base 24 . Each of the concavities and convexities of the first receiving portion side uneven portion 34 has an inclined surface 33 that is inclined in the circumferential direction around the axis of the male screw body 20, and the inclined angle θ of the inclined surface 33 is set larger than that of the externally threaded body 20 The lead angle α of the thread 21 . Here, although the number of the inclined faces 33 may be set to be the same as the inclined face 23 formed by the screw body side base 24, the angle inclination angle θ of the inclined faces 33 may be larger than the guide angle α, and the rest is not limited. Further, the phase position of the inclined surface 33 is set to be the same as that in the circumferential direction, and the first receiving portion side uneven portion 24 may be appropriately fitted without being limited. The second receiving portion 32 is formed by fitting the third receiving portion 41 formed by the second gasket 40 to have a bulging shape, and has a second receiving portion that can be fitted to the third receiving portion side uneven portion 43. Side uneven portion 35. The unevenness of the second receiving portion side uneven portion 35 is a zigzag shape provided in the circumferential direction, and the zigzag shape allows a specific direction, that is, the direction of the loose external thread body 20 when the third receiving portion side uneven portion 43 is fitted. The relative rotation of the opposite rotation R is reversed to prevent the relative rotation R in the specific direction. Here, the number of concavities and convexities is the same as the number of concavities and convexities formed by the uneven portion 43 on the third receiving portion side, and the fitting state is not limited to the same number. In addition, the phase position of the unevenness setting is the same as that in the circumferential direction, and the third receiving portion side uneven portion 43 may be appropriately fitted without being limited.

第二墊圈40,如圖.2所示,成大致圓形狀,於從中央偏移之位置穿設具有可穿通外螺紋體20之螺紋部的第二墊圈螺紋穿通孔45,,並且,相對於第二承受部32之第三承受部41以及相當於該第三承受部41之背面,即為相對於被鎖固體50側具有第四承受部42。換言之,該實施例中,第二墊圈40設定成比第一墊圈30之面積大。第二墊圈40之面積不予限定為比第一墊圈30之面積大,然而,若以卡合於被鎖固體50使防止特定方向之相對轉動以構成墊圈側卡合部44並將其面積設定為較大之面積,且多餘之面積可構成至穿第二墊圈螺紋通孔45之距離為非固定的異徑部。例如,於本實施例中,將第二墊圈40構成之外圓及內圓作為偏心的圓形使構成異徑部。該異徑部,將第二墊圈40及被鎖固體50卡合並構成為可防止第二墊圈40及被鎖固體50的特定方向中之相對轉動R。第三承受部41,以嵌合第二承受部32使其具有***狀而構成,並具有可嵌合於第二承受部側凹凸部35而構成之第三承受部側凹凸部43。該第三承受部側凹凸部43之凹凸為圓周方向所設之鋸齒狀,而該鋸齒狀在嵌合第二承受部側凹凸部 35時,容許特定方向,即與鬆弛外螺紋體20之方向的相對轉動R反向的相對轉動,使防止該特定方向之相對轉動R而構成。在此,凹凸之數量與第二承受部側凹凸部35所形成的凹凸之數量相同,其可獲得嵌合狀態不侷限於同數量。另外,此凹凸設定之相位位置與圓周方向上相同,亦可適當地嵌合第二承受部側凹凸部35其餘不予限定。第四承受部42,於本實施中設定為平滑面,並與被鎖固體50所設置之外螺紋穿通的孔洞周圍表面之被鎖固體側基座52抵接而構成。但第四承受部42非固定為平滑面狀,亦可設為***狀、梯狀及銷狀等,於該情況下,亦可將***狀、梯狀及銷狀作為墊圈側卡合部44所使用。The second washer 40, as shown in FIG. 2, has a substantially circular shape, and a second washer threaded through hole 45 having a threaded portion that can pass through the externally threaded body 20 is pierced at a position offset from the center, and The third receiving portion 41 of the second receiving portion 32 and the back surface corresponding to the third receiving portion 41 have a fourth receiving portion 42 with respect to the locked solid 50 side. In other words, in this embodiment, the second gasket 40 is set to be larger than the area of the first gasket 30. The area of the second gasket 40 is not limited to be larger than the area of the first gasket 30. However, if it is engaged with the locked solid 50, the relative rotation of the specific direction is prevented to constitute the gasket side engaging portion 44 and the area thereof is set. The larger area, and the excess area may constitute a non-fixed reduced diameter portion to the second washer threaded through hole 45. For example, in the present embodiment, the second washer 40 is formed into an outer circle and an inner circle as an eccentric circular shape to constitute a different diameter portion. The different diameter portion is formed by combining the second washer 40 and the locked solid 50 so as to prevent relative rotation R in the specific direction of the second washer 40 and the locked solid 50. The third receiving portion 41 is formed by fitting the second receiving portion 32 to have a bulging shape, and has a third receiving portion side uneven portion 43 that can be fitted to the second receiving portion side uneven portion 35. The unevenness of the third receiving portion side uneven portion 43 is a zigzag shape provided in the circumferential direction, and the zigzag shape allows a specific direction, that is, the direction of the loose external thread body 20 when the second receiving portion side uneven portion 35 is fitted. The relative rotation of the relative rotation R is reversed to prevent the relative rotation R of the specific direction from being formed. Here, the number of concavities and convexities is the same as the number of concavities and convexities formed by the uneven portion 35 on the second receiving portion side, and the fitting state can be obtained without being limited to the same number. Further, the phase position of the unevenness setting is the same as that in the circumferential direction, and the second receiving portion side uneven portion 35 may be appropriately fitted without being limited. In the present embodiment, the fourth receiving portion 42 is formed as a smooth surface, and is configured to be in contact with the locked solid side base 52 on the peripheral surface of the hole through which the threaded member 50 is threaded. However, the fourth receiving portion 42 is not fixed to a smooth surface, and may be formed in a ridge shape, a ladder shape, a pin shape, or the like. In this case, the ridge shape, the step shape, and the pin shape may be used as the gasket side engagement portion 44. Used.

被鎖固體50及51,位於外螺紋體20之軸向的頭部側並使穿通外螺紋體20之螺紋穿通孔貫通而設置的被鎖固體50,以及位於外螺紋體20之螺紋部前端側並具有使外螺紋體20螺合而穿設之內螺紋孔53的被鎖固體51而構成,其配置使該等被鎖固體50及51分別穿設於一致孔洞的孔軸使其成堆疊狀態。於被鎖固體50之外表面上,在螺紋穿通孔之周圍凹設有以至孔軸偏心之被鎖固體側基座52。該被鎖固體側基座52與第二墊圈40略形成重疊,並設定為適當地深度,例如與第二墊圈40略同的深度。The locked solids 50 and 51 are located on the head side of the axial direction of the male screw body 20, and the locked solid 50 which is provided through the threaded through hole of the male screw body 20, and the front end side of the threaded portion of the male screw body 20 And a locked solid 51 having an internally threaded hole 53 through which the externally threaded body 20 is screwed, and arranged such that the locked solids 50 and 51 are respectively passed through the hole axis of the uniform hole to be stacked. . On the outer surface of the locked solid 50, a locked solid side base 52 which is eccentric to the hole axis is recessed around the threaded through hole. The locked solid side base 52 and the second washer 40 are slightly overlapped and set to a suitable depth, for example, a depth similar to that of the second washer 40.

如上所述構成之螺紋體20之防止反轉結構10,例如以下之順序而成:首先,將第二墊圈40一邊配合偏心相位嵌合於被鎖固體50所凹設之被鎖固體側座52。其次,將外螺紋體20之外螺紋部穿通於第一墊圈30之第一墊圈螺紋穿通孔36。此時,對外螺紋體20之螺紋體側基座24抵接第一承受部側凹凸部34,在此狀態下,將外螺紋體20之螺紋部穿通於被鎖固體50之螺紋穿通孔,同時螺合於被鎖固體51之內螺紋孔53。該過程中,由外螺紋體20之螺紋21無法從第一墊圈30與第二墊圈40之間可視之位置,而為第一墊圈30之鋸齒狀的第二承受部側凹凸部35以及為第二墊圈40之鋸齒狀的第三承受部側凹凸部43相互抵接,同時,容許鎖固方向之相對轉動並且進行相互嵌合。再者,該螺合過程中,外螺紋體20之螺紋體側基座24與第一墊圈30之第一承受部側凹凸部34,為分別相連於傾斜面23及33之垂直(與外螺紋體之軸向大致平行)面可抵接於面方向,以防止相互相對轉動而進行一體旋動。如此一來,於獲得適當扭力或需要的軸向力時間點上即可結束鎖固作業。The anti-reverse structure 10 of the screw body 20 configured as described above is, for example, the following sequence: First, the second washer 40 is fitted to the locked solid side seat 52 recessed by the locked solid 50 while being fitted with the eccentric phase. . Next, the external threaded portion of the male screw body 20 is passed through the first washer threaded through hole 36 of the first washer 30. At this time, the screw body side base 24 of the male screw body 20 abuts against the first receiving portion side uneven portion 34, and in this state, the threaded portion of the male screw body 20 is passed through the threaded through hole of the locked solid 50, and at the same time Screwed into the internally threaded hole 53 of the locked solid 51. In this process, the thread 21 of the male screw body 20 is not visible from the position between the first washer 30 and the second washer 40, but is the serrated second receiving portion side uneven portion 35 of the first washer 30 and The zigzag-shaped third receiving portion side uneven portions 43 of the two washers 40 are in contact with each other, and at the same time, the relative rotation of the locking directions is allowed and the mutual fitting is performed. Further, in the screwing process, the threaded body side base 24 of the male screw body 20 and the first receiving portion side uneven portion 34 of the first washer 30 are perpendicular to the inclined faces 23 and 33, respectively (with external threads) The axially substantially parallel faces of the body can abut against the surface direction to prevent relative rotation by rotating relative to each other. In this way, the locking operation can be ended at the point of obtaining the appropriate torque or the required axial force.

在該鎖固狀態下,若受到使鎖固系統鬆弛之方向的外力時,首先,於外螺紋體20之螺紋體側基座22與第一墊圈30之第一承受部31之間構成即使對螺紋體側基座22受到特定方向之轉動力仍可保持相互卡合之狀態的第一卡合機構60。該第一卡合機構60,其具有外螺紋體20之軸為中心之圓周方向中傾斜的傾斜面23及33,且該傾斜面23及33之傾斜角θ設定為大於形成外螺紋體20之螺紋21的導角α,使防止特定方向,即鬆弛外螺紋體20之方向的相對轉動R而構成。In the locked state, when an external force is applied in a direction in which the locking system is loosened, first, between the screw body side base 22 of the male screw body 20 and the first receiving portion 31 of the first washer 30, even if The threaded body side base 22 receives the first engaging mechanism 60 in a state in which the rotational force in a specific direction can still be engaged with each other. The first engaging mechanism 60 has inclined surfaces 23 and 33 which are inclined in the circumferential direction around the axis of the externally threaded body 20, and the inclination angles θ of the inclined faces 23 and 33 are set larger than those of the externally threaded body 20 The lead angle α of the thread 21 is formed to prevent a relative rotation R in a specific direction, that is, a direction in which the external thread body 20 is loosened.

更具體而言,第一墊圈30藉由下述之第二卡合機構61以及第三卡合機構62,針對被鎖固體50無法以鬆弛外螺紋體20之方向實施相對轉動R而構成。從而,若僅有外螺紋體20之螺紋體側基座22針對第一墊圈30實施特定方向的相對轉動R的話,該傾斜面23及33之傾斜角θ設定為大於形成外螺紋體20之螺紋21的導角α,故外螺紋體20之螺紋體側基座22(傾斜面23)欲藉由第一墊圈30之相對轉動而移動之軸向移動距離大於外螺紋體20欲藉由螺紋21之相對轉動而移動之軸向移動距離。即,針對外螺紋體20於鬆弛方向施加外力的話,螺紋體側基座22(傾斜面23)將受到第一墊圈30向第二墊圈40之方向壓迫的力量,藉以防止相對轉動R。該第一墊圈30壓迫於第二墊圈40側,即可發揮出進一步強化下述第二卡合機構61及第三卡合機構62的卡合狀態之相乘效果。More specifically, the first washer 30 is configured by the second engagement mechanism 61 and the third engagement mechanism 62 described below, so that the locked solid 50 cannot be rotated relative to the direction in which the externally threaded body 20 is loosened. Therefore, if only the threaded body side base 22 of the male screw body 20 performs the relative rotation R in the specific direction with respect to the first washer 30, the inclination angles θ of the inclined faces 23 and 33 are set larger than the threads forming the male screw body 20. The guide angle α of 21, so that the threaded body side base 22 (inclined surface 23) of the externally threaded body 20 is to be moved by the relative rotation of the first washer 30 by an axial movement distance greater than that of the externally threaded body 20 by the thread 21 The axial movement distance of the relative rotation. That is, when an external force is applied to the externally threaded body 20 in the slack direction, the threaded body side base 22 (inclined surface 23) receives a force of pressing the first washer 30 in the direction of the second washer 40, thereby preventing relative rotation R. When the first washer 30 is pressed against the second washer 40 side, the multiplication effect of the engagement state of the second engagement mechanism 61 and the third engagement mechanism 62 described below can be further enhanced.

另外,第一墊圈30之第二承受部32與第二墊圈40之第三承受部41之間構成即使對第二承受部32或第三承受部41受到特定方向,即鬆弛外螺紋體20之方向的轉動力仍可保持相互卡合之狀態的第二卡合機構61。第二承受部32之第二承受部側凹凸35以及與第三承受部41之第二承受部側凹凸部35卡合之第三承受部側凹凸部43以獲得防止特定方向,即鬆弛外螺紋體20之方向的相對轉動R之卡合狀態而嵌合。再者,於此之凹凸依圓周方向所設置鋸齒狀,該鋸齒狀為可容許與該特定方向,即鬆弛外螺紋體20之方向的相對轉動反向之相對轉動,使防止該特定方向之相對轉動R而構成。In addition, between the second receiving portion 32 of the first washer 30 and the third receiving portion 41 of the second washer 40, even if the second receiving portion 32 or the third receiving portion 41 receives a specific direction, that is, the loose external thread body 20 The rotational force of the direction can still maintain the second engagement mechanism 61 in a state of being engaged with each other. The second receiving portion side unevenness 35 of the second receiving portion 32 and the third receiving portion side uneven portion 43 that engages with the second receiving portion side uneven portion 35 of the third receiving portion 41 to obtain a specific direction, that is, a loose external thread The relative rotation R in the direction of the body 20 is engaged and fitted. Further, the unevenness is provided in a zigzag shape in the circumferential direction, and the zigzag shape is a relative rotation which is allowed to reverse the relative rotation of the specific direction, that is, the direction of the loose external thread body 20, so as to prevent the relative direction of the specific direction from being reversed. Rotate R to form.

第二墊圈40,於第四承受部42或該第四承受部42之周圍具有至外螺紋體20之軸距離為非固定的墊圈側卡合部44(在圖.1 至圖.2所示之實施例中,形成為將第二墊圈40至外螺紋體20之軸偏心的圓形且其距離為不相同),墊圈側卡合部44卡合於被鎖固體50之一部份(於被鎖固體50側凹設大致相同之偏心圓形的埋頭孔而構成)的卡合部,藉此構成即使對第二墊圈40進行特定方向,即鬆弛外螺紋體20之方向的轉動力仍可保持相互卡合之狀態的第三卡合機構62。The second washer 40 has a washer-side engaging portion 44 that is not fixed to the outer circumference of the external thread body 20 around the fourth receiving portion 42 or the fourth receiving portion 42 (shown in FIGS. 1 to 2). In the embodiment, the circular shape of the second washer 40 to the outer thread body 20 is eccentric and the distance is different, and the washer side engaging portion 44 is engaged with a part of the locked solid 50 (in The engaging portion formed by the substantially eccentric circular counterbore recessed on the side of the locked solid 50 is configured to form a rotational force in the direction of the loose external thread 20 even in a specific direction of the second washer 40. The third engagement mechanism 62 is held in a state of being engaged with each other.

藉由以上的第一卡合機構60,防止外螺紋體20與第一墊圈30之間的特定方向,即鬆弛外螺紋體20之方向的相對轉動R,且藉由第二卡合機構61,防止第一墊圈30與第二墊圈40之間的特定方向,即鬆弛外螺紋體20之方向的相對轉動R,且藉由第三卡合機構62,防止第二墊圈40與被鎖固體50之間的特定方向,即鬆弛外螺紋體20之方向的相對轉動R,藉此可防止外螺紋體20與被鎖固體50之間的特定方向,即鬆弛外螺紋體20之方向的相對轉動R。By the above first engaging mechanism 60, the specific direction between the externally threaded body 20 and the first washer 30, that is, the relative rotation R of the direction in which the externally threaded body 20 is loosened, is prevented, and by the second engaging mechanism 61, Preventing a specific direction between the first washer 30 and the second washer 40, that is, loosening the relative rotation R of the direction of the external thread body 20, and preventing the second washer 40 and the locked solid 50 by the third engaging mechanism 62 The specific direction between, that is, the relative rotation R of the direction in which the externally threaded body 20 is loosened, thereby preventing the relative rotation between the externally threaded body 20 and the locked solid 50, that is, the relative rotation R of the direction in which the externally threaded body 20 is loosened.

尤其於本實施例中,第一卡合機構60之傾斜面23及33的傾斜方向與第二卡合機構61之鋸齒狀之傾斜面的傾斜方向成相對。從而,外螺紋體20進行鎖固時第一卡合機構60的相對轉動將被抑制,第二卡合機構61的相對轉動則在容許範圍。另一方面,試圖將外螺紋體20鬆弛,則於第一卡合機構60之傾斜面23及33之兩面受到離反方向之軸力,藉由該軸力可獲得使第二卡合機構61之卡合狀態穩固的相乘效果。In particular, in the present embodiment, the inclined directions of the inclined faces 23 and 33 of the first engaging mechanism 60 are opposite to the inclined directions of the zigzag inclined faces of the second engaging mechanism 61. Therefore, the relative rotation of the first engagement mechanism 60 when the male screw body 20 is locked is suppressed, and the relative rotation of the second engagement mechanism 61 is within the allowable range. On the other hand, when attempting to loosen the externally threaded body 20, the axial force from the opposite direction is received on both sides of the inclined faces 23 and 33 of the first engaging mechanism 60, and the second engaging mechanism 61 can be obtained by the axial force. The synergistic effect of the stuck state.

本實施例中,形成於外螺紋體20與第一墊圈30之間的第一卡合機構60於外螺紋體20之軸為中心的圓周方向中具有傾斜面23及33,該傾斜面23及33之傾斜面θ設定為大於導角α,但本發明不限定於此。例如,形成於第一墊圈30與第二墊圈40之間的第二卡合機構61於外螺紋體20之軸為中心的圓周方向中具有傾斜面23及33,該傾斜面23及33之傾斜面θ設定為大於導角α。此時,在第一卡合機構60之螺紋體側基座22上形成與第二承受部側凹凸部35相同之螺紋體側凹凸部,並在第一承受部31上形成與第三承受部側凹凸部43相同之第一承受部側凹凸部,且將該等螺紋體側凹凸部與第一承受部側凹凸部以防止特定方向,即鬆弛外螺紋體20之方向的相對轉動R嵌合即可。藉此,可替換第一卡合機構與第二卡合機構之功能,以下述其他實施例中亦為相同。In the present embodiment, the first engaging mechanism 60 formed between the male screw body 20 and the first washer 30 has inclined surfaces 23 and 33 in the circumferential direction centering on the axis of the male screw body 20, and the inclined surface 23 and The inclined surface θ of 33 is set to be larger than the lead angle α, but the present invention is not limited thereto. For example, the second engaging mechanism 61 formed between the first washer 30 and the second washer 40 has inclined faces 23 and 33 in the circumferential direction centering on the axis of the male screw body 20, and the inclined faces 23 and 33 are inclined The surface θ is set to be larger than the lead angle α. At this time, the screw body side uneven portion similar to the second receiving portion side uneven portion 35 is formed on the screw body side base 22 of the first engagement mechanism 60, and the third receiving portion is formed on the first receiving portion 31. The first receiving portion side uneven portion having the same side concave portion 43 is fitted, and the screw portion side uneven portion and the first receiving portion side uneven portion are fitted to prevent a specific direction, that is, the relative rotation R of the direction in which the external thread body 20 is loosened. Just fine. Thereby, the functions of the first engaging mechanism and the second engaging mechanism can be replaced, which are also the same in other embodiments described below.

於本實施例中之第二墊圈40,從螺紋體的軸偏芯之外周緣的一部份設置墊圈側卡合部44,藉由該墊圈側卡合部44卡合於被鎖固體50之一部分使防止特定方向之相對轉動,但墊圈側卡合部44的設置不限於此,亦可為圖3所示之構成。圖3(A)所示之第二墊圈140設定為大致鐘型的平面形狀,具有從表裡貫穿至第二墊圈螺紋穿通孔145之軸距離為非固定的外形,而其非固定的外形設定為可達到墊圈側卡合部44之功能。圖3(B)所示之第二墊圈240為水滴形,具有從表裡貫穿至第二墊圈螺紋穿通孔245之軸距離為非固定的外形,而其非固定的外形設定為可達到墊圈側卡合部44之功能。圖3(C) 所示之第二墊圈340,其具有二表裡貫穿之第二墊圈螺紋穿通孔345而構成為可穿通二外螺紋體20,並構成從軸距離為非固定的墊圈側卡合部44之功能,以一方的外螺紋體20穿通第二墊圈螺紋穿通孔345藉由與另一方的外螺紋體20穿通第二墊圈螺紋穿通孔345以防止特定方向之相對轉動R (參考圖4(C)) 。In the second washer 40 in the embodiment, the washer-side engaging portion 44 is provided from a portion of the outer periphery of the shaft of the threaded body, and the washer-side engaging portion 44 is engaged with the locked solid 50. Some of them prevent relative rotation in a specific direction, but the arrangement of the gasket side engaging portion 44 is not limited thereto, and may be configured as shown in FIG. The second washer 140 shown in FIG. 3(A) is set in a substantially bell-shaped planar shape, and has a non-fixed outer shape from the front surface to the second washer thread through-hole 145, and its non-fixed outer shape setting. In order to achieve the function of the gasket side engaging portion 44. The second washer 240 shown in FIG. 3(B) has a teardrop shape, and has a non-fixed outer shape from the front surface to the second washer thread through hole 245, and its non-fixed outer shape is set to the gasket side. The function of the engaging portion 44. The second washer 340 shown in FIG. 3(C) has a second washer threaded through hole 345 extending through the two surfaces and is configured to be threaded through the two externally threaded bodies 20 and constitutes a non-fixed washer side card from the shaft. The function of the joint portion 44 is such that one of the externally threaded bodies 20 passes through the second washer threaded through hole 345 and passes through the second washer threaded through hole 345 with the other male threaded body 20 to prevent relative rotation R in a specific direction (refer to the figure). 4(C)).

圖4為利用圖3所示的第二墊圈之鎖固例。圖4(A)與圖4(B)為在凸緣管接合部將凸緣狀被鎖固體150、151作為被鎖固體之鎖固系統。在圖4(A)中,形成鐘形之第二墊圈140的異徑部之墊圈側卡合部44抵接於凸緣管的管表面,以防止針對被鎖固體150、151的相對轉動而構成。在圖4(B)中,形成水滴形之第二墊圈240的異徑部之墊圈側卡合部44抵接於凸緣管的管表面,以防止針對被鎖固體150、151的相對轉動而構成。Fig. 4 is a view showing a locking example using the second washer shown in Fig. 3. 4(A) and 4(B) show a locking system in which the flange-shaped locked solids 150 and 151 are locked solids at the flange pipe joint portion. In FIG. 4(A), the washer side engaging portion 44 of the different diameter portion forming the bell-shaped second washer 140 abuts against the tube surface of the flange tube to prevent relative rotation with respect to the locked solids 150, 151. Composition. In FIG. 4(B), the gasket side engaging portion 44 of the different diameter portion forming the teardrop-shaped second washer 240 abuts against the tube surface of the flange tube to prevent relative rotation with respect to the locked solids 150, 151. Composition.

圖1所示之第二墊圈40,從螺紋體的軸偏芯之外周緣設置於墊圈側卡合部44,但本發明不限於此。例如圖5(A)所示之第二墊圈440,其外周緣同心部分圓弧形狀S相對於螺紋的軸心,剩餘部分如同弦G直線狀切除之形狀。根據此結構,墊圈側卡合部444至螺紋體軸心的距離為非固定(隨著圓周方向變動)。The second washer 40 shown in Fig. 1 is provided on the gasket side engaging portion 44 from the outer periphery of the shaft of the screw body, but the present invention is not limited thereto. For example, the second washer 440 shown in Fig. 5(A) has an outer peripheral concentric portion arc shape S with respect to the axial center of the thread, and the remaining portion has a shape in which the string G is linearly cut away. According to this configuration, the distance from the washer side engaging portion 444 to the axial center of the screw body is not fixed (varies with the circumferential direction).

另一方面,形成於被鎖固體450之螺紋穿通孔周圍的被鎖固體側基座452,亦大致相同地凹設於第二墊圈440。從而,依據弦G的形狀,卡合墊圈側卡合部444與被鎖固體側基座452,使抑制圓周方向之相對轉動。On the other hand, the locked solid side base 452 formed around the threaded through hole of the locked solid 450 is also substantially recessed in the second washer 440. Therefore, depending on the shape of the string G, the gasket side engaging portion 444 and the locked solid side base 452 are engaged to suppress relative rotation in the circumferential direction.

另外,如圖5(B)所示,第二墊圈440之外周緣同心部分圓弧形狀S相對於螺紋的軸心,剩餘部分可形成延伸至半徑方向的突起T。此時,於被鎖固體側基座452之內壁形成半徑方向凹陷的凹陷K。藉由該突起T與凹陷K之卡合使兩者卡合,將抑制圓周方向之相對轉動。再者,將其反之,亦可將第二墊圈440外周緣形成於半徑方向的凹陷(缺口),在被鎖固體側基座452側形成於半徑方向內側的突起,其未圖示。Further, as shown in FIG. 5(B), the outer peripheral portion of the second washer 440 has a circular arc shape S with respect to the axial center of the screw, and the remaining portion forms a projection T extending in the radial direction. At this time, a recess K which is recessed in the radial direction is formed on the inner wall of the solid side base 452 to be locked. By the engagement of the projection T and the recess K, the two are engaged, and the relative rotation in the circumferential direction is suppressed. On the other hand, the outer peripheral edge of the second gasket 440 may be formed in a recess (notch) in the radial direction, and the protrusion on the inner side in the radial direction may be formed on the side of the solid side base 452 to be locked, which is not shown.

此外,圖1所示之第二墊圈40的墊圈側卡合部44為相對於被鎖固體50之面形成平面為例,但本發明不限於此。例如圖6(A)所示之第二墊圈540的墊圈側卡合部544,相對於被鎖固體550之面的一部分亦可形成以螺紋的軸心為中心之圓錐形等的錐形部544C。該情況下,於被鎖固體550的被鎖固體側基座552亦形成錐形部552C。藉此,相互抵接錐形部,使提高被鎖固體550與第二墊圈540同軸度的同時,可使接觸面積變寬廣。另外,如該例所示,第二墊圈540的外周緣之墊圈側卡合部544與被鎖固體側基座552之內壁之間形成間隙,再將墊圈側卡合部544之外壁形成傾斜面544A,使分解時將一字螺絲起子D的頂端***第二墊圈540之背面側(被鎖固體550側)。如此一來,將墊圈側卡合部544的一部分以一字螺絲起子D舉起,即能強制解除與被鎖固體側基座552的圓周方向卡合。Further, the washer-side engaging portion 44 of the second washer 40 shown in FIG. 1 is exemplified by forming a plane with respect to the surface of the locked solid 50, but the present invention is not limited thereto. For example, the washer-side engaging portion 544 of the second washer 540 shown in Fig. 6(A) may have a conical portion 544C such as a conical shape centering on the axial center of the thread with respect to a part of the surface of the solid to be locked 550. . In this case, the tapered portion 552C is also formed on the locked solid side base 552 of the locked solid 550. Thereby, the tapered portion is abutted to increase the coaxiality of the locked solid 550 and the second gasket 540, and the contact area can be widened. Further, as shown in this example, a gap is formed between the gasket side engaging portion 544 of the outer circumferential edge of the second gasket 540 and the inner wall of the locked solid side base 552, and the outer wall of the gasket side engaging portion 544 is inclined. The surface 544A is inserted into the back side of the second gasket 540 (on the side of the locked solid 550) at the time of disassembly. As a result, a part of the washer-side engaging portion 544 is lifted by the slotted screwdriver D, and the engagement with the circumferential direction of the locked solid-side base 552 can be forcibly released.

另外,如圖6(B)所示,亦可於第二墊圈540的周緣形成遠離被鎖固體550之***用凹部544B。藉由該***用凹部544B將一字螺絲起子D的頂端從背面側***。Further, as shown in FIG. 6(B), an insertion recess 544B that is away from the locked solid 550 may be formed on the periphery of the second washer 540. The tip end of the slotted screwdriver D is inserted from the back side by the insertion recess 544B.

在圖4(A)及(B)中,凸緣狀被鎖固體150、151於周圍具有凸狀的梯狀部(凸緣管),將第二墊圈140、240的墊圈側卡合部抵接梯狀部(凸緣管)的管表面,舉出以防止被鎖固體150、151與第二墊圈140的相對轉動之情況。另一方面,如圖7(A)及(B)所示,亦有被鎖固體650本身作為被鎖固體側基座652,其周圍具有凹狀的被鎖固體側梯狀部652E之情況。此時,作為第二墊圈640的墊圈側卡合部644,形成延伸至螺紋體軸線方向的墊圈側梯狀部644E。具體而言,墊圈側梯狀部644E為向被鎖固體650側曲折的爪子,而使該墊圈側梯狀部644E與被鎖固體側梯狀部652E至螺紋中心的距離相互一致。從而,墊圈側梯狀部644E與被鎖固體側梯狀部652E卡合,使防止兩者的相對轉動。In FIGS. 4(A) and 4(B), the flange-shaped locked solids 150 and 151 have a convex stepped portion (flange tube) around the flange, and the gasket side engaging portions of the second washers 140 and 240 are brought into contact with each other. The surface of the tube of the stepped portion (flange tube) is exemplified to prevent relative rotation of the locked solids 150, 151 and the second gasket 140. On the other hand, as shown in FIGS. 7(A) and (B), the locked solid 650 itself is used as the locked solid side base 652, and the concave solid side stepped portion 652E is provided around the concave portion. At this time, as the washer-side engaging portion 644 of the second washer 640, the washer-side stepped portion 644E extending in the axial direction of the screw body is formed. Specifically, the washer-side stepped portion 644E is a claw that is bent toward the locked solid 650 side, and the distance between the washer-side stepped portion 644E and the locked solid-side stepped portion 652E to the center of the screw coincides with each other. Therefore, the washer-side stepped portion 644E is engaged with the locked solid-side stepped portion 652E to prevent relative rotation between the two.

將圖7的應用結構以圖8表示。如圖8(A)所示,為了提高強度,被鎖固體750與內部具有內螺紋孔753之圓筒形狀部752F向周圍四方延伸的板狀之凸條752G之情況。此時,於第二墊圈740的周緣形成延伸至螺紋體軸線方向的環狀之墊圈側梯狀部744G。該墊圈側梯狀部744G覆蓋於圓筒狀的被鎖固體750。墊圈側梯狀部744G為了避免凸條752G的干涉而形成缺口744H。該缺口744H的內周面形成與凸條752G卡合的墊圈側卡合部744,使抑制兩者的相對轉動。The application structure of Fig. 7 is shown in Fig. 8. As shown in Fig. 8(A), in order to increase the strength, the locked solid 750 and the cylindrical portion 752F having the internally threaded hole 753 therein extend to the periphery of the plate-like ridge 752G. At this time, an annular gasket side stepped portion 744G that extends in the axial direction of the screw body is formed on the periphery of the second washer 740. The washer side stepped portion 744G covers the cylindrical lock solid 750. The gasket side stepped portion 744G forms a notch 744H in order to avoid interference of the ribs 752G. The inner circumferential surface of the notch 744H forms a gasket side engagement portion 744 that engages with the rib 752G, so that the relative rotation between the two is suppressed.

另外,如圖9(A)所示,被鎖固體850以管材構成,而被鎖固體側基座852的被鎖固體側傾斜面852J為管材的外周面。此時,作為第二墊圈840之墊圈側卡合部844,其具有相對於被鎖固體850的墊圈側傾斜面844J。該墊圈側傾斜面844J係由包含具有對螺紋體之軸傾斜的軸(與被鎖固體850之管材相同的軸)的虛擬圓柱之部分周面的曲折面所構成。Further, as shown in FIG. 9(A), the locked solid 850 is formed of a pipe material, and the locked solid side inclined surface 852J of the locked solid side base 852 is an outer peripheral surface of the pipe. At this time, the washer side engaging portion 844 as the second washer 840 has a washer side inclined surface 844J with respect to the locked solid 850. The washer-side inclined surface 844J is constituted by a meandering surface including a partial circumferential surface of a virtual cylinder having a shaft inclined to the axis of the screw body (the same shaft as the pipe of the solid to be locked 850).

具體而言,如圖9(B)所示,墊圈側傾斜面844J於螺紋體之軸的軸線上適當位置的軸直角截面形狀(截面線G)包含從軸心之距離的位移領域。相同地,被鎖固體側傾斜面852J於螺紋體之軸的軸線上適當位置的軸直角截面形狀(截面點G)包含從軸心之距離的位移領域。其結果,墊圈側傾斜面844J抵接被鎖固體側傾斜面852J,則相互卡合於圓周方向以防止兩者的相對轉動。Specifically, as shown in FIG. 9(B), the axially-oblique cross-sectional shape (section line G) of the washer side inclined surface 844J at an appropriate position on the axis of the shaft of the screw body includes the displacement field from the distance of the axial center. Similarly, the axially orthogonal cross-sectional shape (section point G) of the locked solid side inclined surface 852J at an appropriate position on the axis of the axis of the screw body includes the displacement field from the distance of the axial center. As a result, the washer-side inclined surface 844J abuts against the locked solid-side inclined surface 852J, and is engaged with each other in the circumferential direction to prevent relative rotation between the two.

如圖10(A)所示,被鎖固體950之被鎖固體側基座952為如橢圓半球體的形狀,而其底面中心形成一內螺紋孔之情況。此時,將第二墊圈940之墊圈側卡合部844視為對軸的直角方向截面形狀相似於橢圓的橢圓半球體之突起。As shown in Fig. 10(A), the locked solid side base 952 of the locked solid 950 is in the shape of an elliptical hemisphere, and the center of the bottom surface thereof is formed with an internally threaded hole. At this time, the washer-side engaging portion 844 of the second washer 940 is regarded as a projection of an elliptical hemisphere having a cross-sectional shape similar to an ellipse in the direction perpendicular to the axis.

如圖10(B)及(C)所示,被鎖固體側基座952及墊圈側卡合部844因同為橢圓形狀,其包含軸線上適當位置的軸直角截面形狀(截面點G)及以軸心為基準的位移領域。從而,被鎖固體側基座952之凹部崁合於墊圈側卡合部844之突起,則可防止兩者的相對轉動。As shown in FIGS. 10(B) and (C), the locked solid side base 952 and the washer side engaging portion 844 have an elliptical shape, and include a right-angled cross-sectional shape (section point G) at an appropriate position on the axis and The field of displacement based on the axis. Therefore, the concave portion of the locked solid side base 952 is coupled to the protrusion of the gasket side engaging portion 844, so that the relative rotation of the two can be prevented.

此外,於上述實施例中,舉出在外螺紋體的頂部與被鎖固體之間介入第一及第二墊圈之情況,但不受限於本發明,亦可在內螺紋體與被鎖固體之間介入上述第一及第二墊圈。Further, in the above embodiment, the case where the first and second washers are interposed between the top of the externally threaded body and the locked solid is mentioned, but is not limited to the present invention, and may be an internal threaded body and a locked solid. Intervening between the first and second washers described above.

另外,如圖11至圖13所示,在內螺紋體1020與被鎖固體1050之間介入第一墊圈1030及第二墊圈1040之情況下,亦可將第二墊圈1040針對外螺紋體1070的另一側軸部於圓周方向卡合。例如,如圖13所示,於第二墊圈1040的內周面形成從螺紋體之軸心距離為非固定之墊圈側卡合部1044。具體而言,其第二墊圈1040的內周面同心部分圓弧形狀相對於螺紋的軸心,剩餘部分為像弦一樣直線狀的形狀。另一方面,如圖12所示,外螺紋體1070之軸部1072的圓筒部1072A亦形成從軸心距離為非固定之外螺紋體側卡合部1074。In addition, as shown in FIG. 11 to FIG. 13 , in the case where the first washer 1030 and the second washer 1040 are interposed between the internal thread body 1020 and the locked solid 1050, the second washer 1040 may also be directed to the externally threaded body 1070. The other side shaft portion is engaged in the circumferential direction. For example, as shown in FIG. 13, the gasket side engagement portion 1044 whose distance from the axial center of the screw body is not fixed is formed on the inner circumferential surface of the second gasket 1040. Specifically, the inner circumferential surface of the second gasket 1040 has a circular arc shape with respect to the axial center of the screw, and the remaining portion has a linear shape like a chord. On the other hand, as shown in FIG. 12, the cylindrical portion 1072A of the shaft portion 1072 of the male screw body 1070 also forms a screw body side engaging portion 1074 which is not fixed from the axial center.

從而,將外螺紋體1070的軸部1072***第二墊圈1040,則抵接墊圈側卡合部1044與外螺紋體側卡合部1074,使抑制兩者圓周方向的相對轉動。Therefore, when the shaft portion 1072 of the male screw body 1070 is inserted into the second washer 1040, the washer-side engaging portion 1044 and the male-threaded body side engaging portion 1074 are abutted, and the relative rotation in both circumferential directions is suppressed.

再者,作為此應用例,如圖14及圖15所示,外螺紋體1170的軸部1172與外螺紋部1172B重疊以形成外螺栓側卡合部1174。該外螺栓側卡合部1174從軸向的角度看來,沿著螺紋頂端以形成截面正圓形的一部分圓弧,其弦為被省略(或切除)之形狀。也就是說,以螺紋之一部分相連於軸向省略即可構成針對半徑方向直角且朝向半徑方向外側的虛擬平面P,而該虛擬平面P則成為外螺栓側卡合部1174。再者,外螺栓側卡合部1174預留螺紋之溝槽為較佳,並可維持與內螺紋體1120螺旋的功能。Further, as an application example, as shown in FIGS. 14 and 15 , the shaft portion 1172 of the male screw body 1170 overlaps with the male screw portion 1172B to form the outer bolt side engaging portion 1174. The outer bolt side engaging portion 1174 is formed along the tip end of the thread to form a part of a circular arc having a substantially circular cross section from the axial direction, and the chord is a shape that is omitted (or cut). That is, the virtual plane P which is a right angle to the radial direction and faces the outer side in the radial direction is formed by arranging one of the threads in the axial direction, and the virtual plane P becomes the outer bolt side engaging portion 1174. Further, it is preferable that the outer bolt side engaging portion 1174 is provided with a groove of a thread, and the function of spiraling with the internally threaded body 1120 can be maintained.

從而,將外螺紋體1170的軸部1172***第二墊圈1140,則抵接墊圈側卡合部1144與外螺栓側卡合部1174,使抑制兩者圓周方向的相對轉動。Therefore, when the shaft portion 1172 of the male screw body 1170 is inserted into the second washer 1140, the washer-side engaging portion 1144 and the outer bolt-side engaging portion 1174 are abutted, and the relative rotation in both circumferential directions is suppressed.

以上說明螺紋體20之防止反轉結構10,可於不脫離本發明主旨之下進行各種變更。The anti-reverse structure 10 of the screw body 20 will be described above, and various modifications can be made without departing from the spirit of the invention.

10‧‧‧防止反轉結構
140‧‧‧第二墊圈
145‧‧‧第二墊圈螺紋穿通孔
150,151‧‧‧被鎖固體
20‧‧‧螺紋體
21‧‧‧螺紋
22‧‧‧螺紋體側基座
23‧‧‧傾斜面
24‧‧‧螺紋體側基座
240‧‧‧第二墊圈
245‧‧‧第二墊圈螺紋穿通孔
30‧‧‧第一墊圈
31‧‧‧第一承受部
32‧‧‧第二承受部
33‧‧‧傾斜面
34‧‧‧第一承受部側凹凸部
340‧‧‧第二墊圈
345‧‧‧第二墊圈螺紋穿通孔
35‧‧‧第二承受部側凹凸部
36‧‧‧第一墊圈螺紋穿通孔
40‧‧‧第二墊圈
41‧‧‧第三承受部
42‧‧‧第四承受部
43‧‧‧第三承受部側凹凸部
44‧‧‧墊圈側卡合部
440‧‧‧第二墊圈
444‧‧‧墊圈側卡合部
45‧‧‧第二墊圈螺紋穿通孔
450‧‧‧被鎖固體
452‧‧‧被鎖固體側基座
50,51‧‧‧被鎖固體
52‧‧‧被鎖固體側基座
53‧‧‧內螺紋孔
540‧‧‧第二墊圈
544‧‧‧墊圈側卡合部
544A‧‧‧傾斜面
544B‧‧‧***用凹部
544C‧‧‧錐形部
550‧‧‧被鎖固體
552‧‧‧被鎖固體側基座
552C‧‧‧錐形部
60‧‧‧第一卡合機構
61‧‧‧第二卡合機構
62‧‧‧第三卡合機構
640‧‧‧第二墊圈
644‧‧‧墊圈側卡合部
644E‧‧‧墊圈側梯狀部
650‧‧‧被鎖固體
652‧‧‧被鎖固體側基座
652E‧‧‧被鎖固體側梯狀部
740‧‧‧第二墊圈
744‧‧‧墊圈側卡合部
744G‧‧‧墊圈側梯狀部
744H‧‧‧缺口
750‧‧‧被鎖固體
752F‧‧‧圓筒形狀部
752G‧‧‧凸條
753‧‧‧內螺紋孔
840‧‧‧第二墊圈
844‧‧‧墊圈側卡合部
844J‧‧‧墊圈側傾斜面
850‧‧‧被鎖固體
852‧‧‧被鎖固體側基座
852J‧‧‧被鎖固體側傾斜面
940‧‧‧第二墊圈
950‧‧‧被鎖固體
952‧‧‧被鎖固體側基座
1020‧‧‧內螺紋體
1030‧‧‧第一墊圈
1040‧‧‧第二墊圈
1044‧‧‧墊圈側卡合部
1050‧‧‧被鎖固體
1070‧‧‧外螺紋體
1072‧‧‧軸部
1072A‧‧‧圓筒部
1074‧‧‧外螺紋體側卡合部
1120‧‧‧內螺紋體
1140‧‧‧第二墊圈
1144‧‧‧墊圈側卡合部
1170‧‧‧外螺紋體
1172‧‧‧軸部
1172B‧‧‧外螺紋部
1174‧‧‧外螺栓α側卡合部
P‧‧‧虛擬平面
R‧‧‧相對轉動
S‧‧‧圓弧形狀
T‧‧‧突起
K‧‧‧凹陷
D‧‧‧一字螺絲起子
10‧‧‧Prevention of reverse structure
140‧‧‧second washer
145‧‧‧Second washer thread through hole
150,151‧‧‧Locked solid
20‧‧‧ thread body
21‧‧‧ thread
22‧‧‧Threaded side base
23‧‧‧Sloping surface
24‧‧‧Threaded side base
240‧‧‧second washer
245‧‧‧Second washer thread through hole
30‧‧‧First washer
31‧‧‧First Receiving Department
32‧‧‧second receiving department
33‧‧‧Sloping surface
34‧‧‧The first receiving part side concave and convex part
340‧‧‧second washer
345‧‧‧Second washer thread through hole
35‧‧‧The second receiving part side concave and convex part
36‧‧‧First washer thread through hole
40‧‧‧second washer
41‧‧‧ Third receiving department
42‧‧‧Fourth Bearing Department
43‧‧‧The third receiving part side concave and convex part
44‧‧‧Gas side engagement
440‧‧‧second washer
444‧‧‧Gas side engagement
45‧‧‧Second washer thread through hole
450‧‧‧Locked solid
452‧‧‧Locked solid side base
50, 51‧‧‧Locked solid
52‧‧‧Locked solid side base
53‧‧‧Threaded hole
540‧‧‧second washer
544‧‧‧Gas side engagement
544A‧‧‧ sloped surface
544B‧‧‧Indentation for insertion
544C‧‧‧ Tapered
550‧‧‧Locked solid
552‧‧‧Locked solid side base
552C‧‧‧ Tapered
60‧‧‧First engagement mechanism
61‧‧‧Second engagement mechanism
62‧‧‧ Third engagement mechanism
640‧‧‧second washer
644‧‧‧Gas side engagement
644E‧‧‧Gas side ladder
650‧‧‧Locked solid
652‧‧‧Locked solid side base
652E‧‧‧Locked solid side ladder
740‧‧‧second washer
744‧‧‧Gas side engagement
744G‧‧‧Gas side ladder
744H‧‧‧ gap
750‧‧‧Locked solid
752F‧‧‧Cylinder shape
752G‧‧‧ ribs
753‧‧‧Threaded hole
840‧‧‧second washer
844‧‧‧Gas side engagement
844J‧‧‧Slant side slope
850‧‧‧Locked solid
852‧‧‧Locked solid side base
852J‧‧‧Locked solid side inclined surface
940‧‧‧second washer
950‧‧‧Locked solid
952‧‧‧Locked solid side base
1020‧‧‧ internal thread body
1030‧‧‧First washer
1040‧‧‧second washer
1044‧‧‧Gas side engagement
1050‧‧‧Locked solid
1070‧‧‧ external thread body
1072‧‧‧Axis
1072A‧‧‧Cylinder
1074‧‧‧ External thread body side engagement part
1120‧‧‧ internal thread body
1140‧‧‧second washer
1144‧‧‧Gas side engagement
1170‧‧‧ external thread body
1172‧‧‧Axis
1172B‧‧‧External thread
1174‧‧‧Outer bolt α side engagement
P‧‧‧ virtual plane
R‧‧‧ relative rotation
S‧‧‧ arc shape
T‧‧‧ Protrusion
K‧‧‧ sag
D‧‧‧Slot screwdriver

圖1(A)、圖1(B):為本發明螺紋體之防止反轉結構的一實施例之立體示意圖。 圖2(A):為適用本發明之螺紋體之防止反轉結構的鎖固狀態之立體示意圖;圖2 (B):為圖2 (A)之俯視圖;圖2 (C):為圖2 (B)之c-c剖面圖;圖2 (D):為圖2 (B)之d-d剖面圖。 圖3(A)至圖3 (C):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖。 圖4(A)至圖4(C):為分別利用圖.3(A)至(C)的第二墊圈之鎖固狀態之立體示意圖。 圖5(A)以及圖5(B):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖以及前視示意圖。 圖6(A)以及圖6(B):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖以及前視示意圖。 圖7(A)以及圖7(B):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖以及前視示意圖。 圖8(A)以及圖8(B):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖以及前視示意圖。 圖9(A)以及圖9(B):為分別適用本發明之第二墊圈的另一實施例之俯視示意圖以及前視示意圖。 圖10(A)至圖10(C):為分別適用本發明之第二墊圈的另一實施例之立體示意圖、被鎖固體之俯視示意圖、第二墊圈之仰視示意圖。 圖11:為適用本發明之螺紋體之防止反轉結構的鎖固狀態之另一實施例之前視剖面示意圖。 圖12(A)以及圖12(B):為另一實施例之外螺紋體之前視示意圖以及仰視示意圖。 圖13(A)以及圖13(B):為另一實施例之第二墊圈之前視示意圖以及仰視示意圖。 圖14:為適用本發明之防止反轉結構的另一實施例之前視剖面示意圖。 圖15 (A):為另一實施例之外螺紋體之前視示意圖;圖.15 (B):為第二墊圈之仰視示意圖。1(A) and 1(B) are perspective views showing an embodiment of an anti-reverse structure of a threaded body of the present invention. Fig. 2(A) is a perspective view showing the locking state of the anti-reverse structure of the threaded body to which the present invention is applied; Fig. 2(B) is a plan view of Fig. 2(A); Fig. 2(C): Fig. 2 (B) cc sectional view; Fig. 2 (D): dd sectional view of Fig. 2 (B). 3(A) to 3(C) are plan views showing another embodiment in which the second gasket of the present invention is applied, respectively. 4(A) to 4(C) are perspective views showing the state in which the second gasket of Figs. 3(A) to (C) is locked, respectively. 5(A) and 5(B) are a top plan view and a front view showing another embodiment in which the second gasket of the present invention is applied, respectively. Fig. 6(A) and Fig. 6(B): respectively FIG. 7(A) and FIG. 7(B) are top plan views and front views of another embodiment of a second gasket to which the present invention is applied, respectively. Fig. 8(A) and Fig. 8(B) are a top plan view and a front view showing another embodiment of a second gasket to which the present invention is applied, respectively. Fig. 9(A) and Fig. 9(B): respectively A top view and a front view of another embodiment of a second gasket to which the present invention is applied. Fig. 10(A) to Fig. 10(C) are perspective views showing another embodiment of a second gasket to which the present invention is applied, A top view of the locked solid and a bottom view of the second gasket. Fig. 11 is a front cross-sectional view showing another embodiment of the locking state of the threaded body of the present invention. Fig. 12(A) and Fig. 12(B): a front view and a bottom view of the threaded body of another embodiment FIG 13 (A) and FIG. 13 (B): bottom view and a schematic view of the gasket before the second embodiment of another embodiment. Figure 14 is a front cross-sectional view showing another embodiment of the anti-inversion structure to which the present invention is applied. Figure 15 (A) is a front view of the threaded body of another embodiment; Figure 15 (B): a bottom view of the second gasket.

10‧‧‧防止反轉結構 10‧‧‧Prevention of reverse structure

20‧‧‧螺紋體 20‧‧‧ thread body

21‧‧‧螺紋 21‧‧‧ thread

22‧‧‧螺紋體側基座 22‧‧‧Threaded side base

23‧‧‧傾斜面 23‧‧‧Sloping surface

24‧‧‧螺紋體側基座 24‧‧‧Threaded side base

30‧‧‧第一墊圈 30‧‧‧First washer

31‧‧‧第一承受部 31‧‧‧First Receiving Department

32‧‧‧第二承受部 32‧‧‧second receiving department

33‧‧‧傾斜面 33‧‧‧Sloping surface

34‧‧‧第一承受部側凹凸部 34‧‧‧The first receiving part side concave and convex part

35‧‧‧第二承受部側凹凸部 35‧‧‧The second receiving part side concave and convex part

36‧‧‧第一墊圈螺紋穿通孔 36‧‧‧First washer thread through hole

40‧‧‧第二墊圈 40‧‧‧second washer

41‧‧‧第三承受部 41‧‧‧ Third receiving department

42‧‧‧第四承受部 42‧‧‧Fourth Bearing Department

43‧‧‧第三承受部側凹凸部 43‧‧‧The third receiving part side concave and convex part

44‧‧‧墊圈側卡合部 44‧‧‧Gas side engagement

45‧‧‧第二墊圈螺紋穿通孔 45‧‧‧Second washer thread through hole

50,51‧‧‧被鎖固體 50, 51‧‧‧Locked solid

52‧‧‧被鎖固體側基座 52‧‧‧Locked solid side base

53‧‧‧內螺紋孔 53‧‧‧Threaded hole

Claims (6)

一種螺紋體防止反轉結構,其包含一具有螺紋之螺紋體、一第一墊圈以及一第二墊圈; 其特徵在於, 該螺紋體具有一與該第一墊圈相對之螺紋體側基座; 該第一墊圈具有一與該螺紋體側基座相對之第一承受部及一與該第二墊圈相對之第二承受部; 該第二墊圈具有一與該第二承受部相對之第三承受部及一與具有被鎖固體側基座的被鎖固體相對之第四承受部; 在該螺紋體側基座與該第一承受部之間構成一即使對該螺紋體側基座施加特定方向之回轉力仍可維持其相互卡合狀態之第一卡合機構; 在該第二承受部與該第三承受部之間構成一即使對該第二承受部或是該第三承受部施加特定方向之回轉力仍可維持其相互卡合狀態之第二卡合機構; 該第二墊圈,於內圈表面、該第四承受部或該第四承受部之周圍其中之一,具有一從該螺紋體之軸的距離為非固定的墊圈側卡合部; 該墊圈側卡合部,藉由卡合於該被鎖固體之一部分或對側螺紋體之一部分構成一即使對該第二墊圈施加特定方向之回轉力仍可維持其相互卡合狀態之第三卡合機構; 藉由該第一卡合機構防止於該螺紋體與該墊圈之間所產生的該特定方向之相對轉動、藉由該第二卡合機構防止於該第一墊圈與該第二墊圈之間所產生之該特定方向之相對轉動,以及藉由該第三卡合機構防止於該第二墊圈與該被鎖固體或該對側螺紋體之間所產生之該特定方向之相對轉動,以防止該螺紋體與該被鎖固體或該對向螺紋體之間所產生之特定方向之相對轉動。A thread body anti-reverse structure comprising a threaded threaded body, a first washer and a second washer; wherein the threaded body has a threaded body side base opposite the first washer; The first washer has a first receiving portion opposite to the threaded body side base and a second receiving portion opposite to the second washer; the second washer has a third receiving portion opposite to the second receiving portion And a fourth receiving portion opposite to the locked solid having the solid side base to be locked; forming a specific direction between the threaded body side base and the first receiving portion even if the threaded body side base is applied a first engaging mechanism capable of maintaining the mutual engagement state of the rotating force; forming a specific direction between the second receiving portion and the third receiving portion even if the second receiving portion or the third receiving portion is applied a second engaging mechanism that maintains its mutual engagement state; the second washer has one of the inner ring surface, the fourth receiving portion or the fourth receiving portion The distance of the axis of the body is not fixed a gasket side engaging portion; the gasket side engaging portion is configured to be engaged with a portion of the locked solid or a portion of the opposite threaded body to maintain a rotation force even if a specific direction is applied to the second gasket a third engaging mechanism that is engaged with each other; the first engaging mechanism prevents relative rotation of the specific direction between the threaded body and the washer, and the second engaging mechanism prevents the second engaging mechanism Relative rotation of the specific direction between the first washer and the second washer, and prevention by the third engaging mechanism between the second washer and the locked solid or the opposite threaded body The relative rotation of the particular direction prevents relative rotation of the threaded body and the particular direction produced between the locked solid or the opposing threaded body. 如請求項1所述之螺紋體之防止反轉結構,其中,該第一卡合機構或該第二卡合機構之其中一,具有一以該螺紋體之軸為中心之圓周方向傾斜之斜面,並設定斜面之傾斜角大於該螺紋體之該螺紋所形成之導角,以防止該特定方向之相對轉動。The anti-reverse structure of the threaded body according to claim 1, wherein one of the first engaging mechanism or the second engaging mechanism has a slope inclined in a circumferential direction around an axis of the threaded body And setting the inclination angle of the slope to be larger than the guide angle formed by the thread of the thread body to prevent relative rotation of the specific direction. 如請求項1或2所述之螺紋體之防止反轉結構,其中,作為該第一卡合機構於該螺紋體側基座形成一螺紋體側凹凸並於該第一承受部形成一與該螺紋體側凹凸卡合之第一承受部側凹凸,或者,作為前述第二卡合機構於該第二承受部形成一第二承受部側凹凸並於該第三承受部形成一與該第二承受部側凹凸卡合之第三承受部側凹凸,依該等方式防止該特定方向之相對轉動之卡合。The anti-reverse structure of the threaded body according to claim 1 or 2, wherein the first engaging mechanism forms a thread body side unevenness on the thread body side base and forms a portion on the first receiving portion The second receiving portion forms a second receiving portion side unevenness on the second receiving portion as the second engaging portion, and the second receiving portion forms a second portion and the second receiving portion. The third receiving portion side unevenness that is engaged with the concave portion on the receiving portion side prevents the relative rotation of the specific direction from being engaged. 如請求項3所述之螺紋體之防止反轉結構,其中,該凹凸為於圓周方向設置之鋸齒狀,該鋸齒狀為可容許與該特定方向之相對轉動反向之相對轉動,以防止該特定方向之相對轉動。The anti-reverse structure of the threaded body according to claim 3, wherein the concavity and convexity is a zigzag shape disposed in a circumferential direction, and the zigzag shape is a relative rotation that can be allowed to reverse the relative rotation of the specific direction to prevent the rotation Relative rotation in a particular direction. 如請求項1至4其中一項所述之螺紋體之防止反轉結構,其中,該第二墊圈之該第四承受部具有一相對於該被鎖固體之第二墊圈側斜面;   該第二墊圈側斜面向該螺紋體之軸形成垂直之剖面形狀,並包含一沿該螺紋體的圓周方向位移至軸心之距離的領域;   藉由該第二墊圈側斜面卡合於該被鎖固體之該被鎖固體側座,即使對該第二墊圈施加該特定方向之回轉力仍構成可維持其相互卡合狀態之該第三卡合機構。The anti-reverse structure of the threaded body according to any one of claims 1 to 4, wherein the fourth receiving portion of the second gasket has a second gasket side inclined surface with respect to the locked solid; The washer is inclined to face the axis of the threaded body to form a vertical cross-sectional shape, and includes a field displaced in the circumferential direction of the threaded body to the axial center; the second gasket side inclined surface is engaged with the locked solid The locked solid side seat constitutes the third engaging mechanism capable of maintaining the mutual engagement state even if the rotation force in the specific direction is applied to the second gasket. 如請求項5所述之螺紋體之防止反轉結構,其中,該第二墊圈斜面含有曲折面。The anti-reverse structure of the threaded body of claim 5, wherein the second gasket bevel comprises a meandering surface.
TW103136962A 2013-10-25 2014-10-27 Anti-reverse structure of threaded body TWI652413B (en)

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JP2017110787A (en) * 2015-12-18 2017-06-22 一夫 中島 Washer, nut, bolt, nut with washer and bolt with washer
CN108281835B (en) * 2017-01-06 2024-04-09 西霸士电子(厦门)有限公司 Locking device and connector
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JP2005226764A (en) * 2004-02-13 2005-08-25 Amachi:Kk Washer with nut lock mechanism
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