JP2000266015A - Resin molding - Google Patents
Resin moldingInfo
- Publication number
- JP2000266015A JP2000266015A JP11069997A JP6999799A JP2000266015A JP 2000266015 A JP2000266015 A JP 2000266015A JP 11069997 A JP11069997 A JP 11069997A JP 6999799 A JP6999799 A JP 6999799A JP 2000266015 A JP2000266015 A JP 2000266015A
- Authority
- JP
- Japan
- Prior art keywords
- deformation
- mounting
- resin molded
- molded product
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、実機に取り付けら
れるときに取付ネジにより締め付けられる構造を備えた
樹脂成形品に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molded product having a structure that can be fastened by a mounting screw when the resin molded product is mounted on an actual machine.
【０００２】[0002]
【従来の技術】従来から、この種の樹脂成形品として図
６ないし図８に示すものが知られており、この樹脂成形
品５１には、この樹脂成形品５１を実機５２に取り付け
るときに取付ネジ５３を差し込む孔部５５を設けた取付
部５４と、取付後の作動時に相手部品（図示せず）と摺
動する摺動部５６とが一体に設けられている。尚、図６
は、この樹脂成形品５１を実機５２に取り付けた状態を
示しており、そのＡ方向矢視拡大図が図７に示され、Ｂ
−Ｂ線断面図が図８に示されている。2. Description of the Related Art Conventionally, this type of resin molded product shown in FIGS. 6 to 8 has been known. This resin molded product 51 is attached to an actual machine 52 when the resin molded product 51 is attached. A mounting portion 54 having a hole 55 into which the screw 53 is inserted, and a sliding portion 56 that slides with a mating component (not shown) during operation after mounting are integrally provided. FIG.
Shows a state in which the resin molded product 51 is attached to the actual machine 52. FIG.
FIG. 8 is a sectional view taken along the line B.
【０００３】上記樹脂成形品５１において、摺動部５６
は、実機５２への取付後に相手部品と摺動する部分であ
ることから、寸法上、高精度が要求されている。In the resin molded article 51, a sliding portion 56
Is a part that slides with a mating component after being attached to the actual machine 52, so that high precision is required in dimensions.
【０００４】しかしながら、上記樹脂成形品５１におい
ては、取付部５４が取付ネジ５３により強く締め付けら
れることによって樹脂成形品５１全体が実機５２に取り
付けられる構造であるために、これに従って取付部５４
を取付ネジ５３により強く締め付けると、取付部５４に
変形（歪み）が発生し、この変形が摺動部５６に伝わっ
て摺動部５６の表面にも変形（うねり）が発生し、摺動
部５６の寸法精度に悪化を来している。一例として、図
７のないしの各ポイントで摺動部５６のａ面に発生
する変形を測定してみると、図９のグラフ図に点線で示
すように最大で２０μｍ近くの大きさのうねりが発生す
る。However, since the resin molded product 51 has a structure in which the entirety of the resin molded product 51 is attached to the actual machine 52 by strongly tightening the mounting portion 54 with the mounting screw 53, the mounting portion 54
Is strongly tightened by the mounting screw 53, deformation (distortion) occurs in the mounting portion 54, this deformation is transmitted to the sliding portion 56, and deformation (undulation) also occurs on the surface of the sliding portion 56. The dimensional accuracy of 56 has deteriorated. As an example, when the deformation occurring on the a-plane of the sliding portion 56 at each of the points shown in FIG. 7 is measured, as shown by a dotted line in the graph of FIG. appear.
【０００５】また、上記従来技術では、取付ネジ５３よ
る締付けトルクの大小により寸法の変化度合いが異なる
ために、これが寸法精度を確保する上での不安定要素と
なっている。Further, in the above prior art, the degree of dimensional change differs depending on the magnitude of the tightening torque by the mounting screw 53, and this is an unstable factor in ensuring dimensional accuracy.
【０００６】[0006]
【発明が解決しようとする課題】本発明は以上の点に鑑
み、実機に取り付けられるときに取付ネジにより締め付
けられる構造を備えた樹脂成形品について、取付ネジの
締付けにより取付部に発生する変形が摺動部または取付
部の周囲にそのままの大きさで伝わるのを防止すること
が可能であり、もって摺動部または取付部の周囲の寸法
を高精度に維持することが可能な樹脂成形品を提供する
ことを目的とする。SUMMARY OF THE INVENTION In view of the above, the present invention relates to a resin molded product having a structure that can be tightened by a mounting screw when mounted on an actual machine. A resin molded product that can be prevented from being transmitted to the surroundings of the sliding part or the mounting part with the same size and that can maintain the dimensions around the sliding part or the mounting part with high precision. The purpose is to provide.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１による樹脂成形品は、取付時に取
付ネジにより締め付けられる取付部と、取付後の作動時
に相手部品と摺動する摺動部とを一体に備えた樹脂成形
品であって、前記取付ネジの締付けにより前記取付部に
発生する変形が前記摺動部に伝わるのを遮断する肉盗み
状の変形遮断部が設けられていることを特徴とするもの
である。In order to achieve the above object, a resin molded product according to claim 1 of the present invention slides on a mounting portion which is tightened by a mounting screw at the time of mounting, and a mating component at the time of operation after mounting. A resin molded product integrally provided with a sliding portion, wherein a robbery-like deformation blocking portion is provided for blocking a deformation generated in the mounting portion from being transmitted to the sliding portion by tightening the mounting screw. It is characterized by having.
【０００８】また、本発明の請求項２による樹脂成形品
は、取付時に取付ネジにより締め付けられる取付部を備
えた樹脂成形品であって、前記取付ネジの締付けにより
前記取付部に発生する変形が前記取付部の周囲に伝わる
のを遮断する肉盗み状の変形遮断部が設けられているこ
とを特徴とするものである。A resin molded product according to a second aspect of the present invention is a resin molded product provided with a mounting portion which is fastened by a mounting screw at the time of mounting, wherein deformation which occurs in the mounting portion due to tightening of the mounting screw. It is characterized in that a robbery-like deformation blocking portion for blocking transmission to the periphery of the mounting portion is provided.
【０００９】更にまた、本発明の請求項３による樹脂成
形品は、上記した請求項１または２の樹脂成形品におい
て、変形遮断部が、取付ネジを差し込む孔部の外径側に
同心円状に設けられていることを特徴とするものであ
る。Further, in the resin molded product according to claim 3 of the present invention, in the resin molded product according to claim 1 or 2, the deformation blocking portion is concentrically formed on the outer diameter side of the hole into which the mounting screw is inserted. It is characterized by being provided.
【００１０】上記構成を備えた本発明の請求項１または
２による樹脂成形品のように、肉盗み状の変形遮断部が
設けられると、この変形遮断部を境にしてその先へ変形
が伝わりにくくなり、よって摺動部または取付部の周囲
に発生する変形量を格段に縮小することが可能となる。
肉盗み状の変形遮断部が設けられることにより変形が伝
わりにくくなるのは、変形遮断部における取付部側の内
壁が変形しても、この内壁と反対側の内壁との間隔の大
きさが変わるだけで反対側の内壁が変形しないからであ
り、よって変形遮断部の深さに応じて変形の伝播量が低
減されるからである。請求項１では、取付部に発生する
変形が摺動部に対して伝わりにくくするものであること
から、取付部と摺動部との間の位置に変形遮断部を設け
るのが好適であり、請求項２では、取付部に発生する変
形が取付部の周囲に対して伝わりにくくするものである
ことから、取付部の周辺位置に変形遮断部を設けるのが
好適である。[0010] As in the resin molded product according to the first or second aspect of the present invention having the above-mentioned structure, when a robbed deformation blocking portion is provided, the deformation is transmitted beyond the deformation blocking portion. Therefore, the amount of deformation generated around the sliding portion or the mounting portion can be significantly reduced.
The reason that the deformation is difficult to be transmitted due to the provision of the burglar-shaped deformation blocking part is that even if the inner wall of the mounting part side in the deformation blocking part is deformed, the size of the gap between this inner wall and the opposite inner wall changes. This is because only the inner wall on the opposite side is not deformed, and the propagation amount of deformation is reduced according to the depth of the deformation blocking portion. According to the first aspect, since the deformation generated in the mounting portion is hardly transmitted to the sliding portion, it is preferable to provide a deformation blocking portion at a position between the mounting portion and the sliding portion, According to the second aspect, it is preferable to provide a deformation blocking portion at a position around the mounting portion, since the deformation generated in the mounting portion is hardly transmitted to the periphery of the mounting portion.
【００１１】また、変形遮断部は、樹脂成形品の成形と
同時に、樹脂成形品の表面に開口する凹部として成形さ
れ、または樹脂成形品の成形後に後付けで、樹脂成形品
の表面に開口する凹部として成形されるものである。変
形遮断部の深さは、樹脂材料の種類等を勘案して定めら
れるが、一般的には樹脂成形品の取付部の厚さ寸法の１
／４〜５／６程度とするのが効果的である。The deformation blocking portion is formed as a concave portion opening on the surface of the resin molded product at the same time as the molding of the resin molded product, or is formed as a concave portion opened on the surface of the resin molded product after the molding of the resin molded product. It is molded as The depth of the deformation interrupting portion is determined in consideration of the type of the resin material and the like.
It is effective to set it to about / 4 to 5/6.
【００１２】また、請求項３では、変形遮断部が、取付
ネジを差し込む孔部の外径側に同心円状に設けられるた
めに、孔部が開口する平面上の全方位方向に対して変形
が伝わりにくくなる。According to the third aspect of the present invention, since the deformation blocking portion is provided concentrically on the outer diameter side of the hole into which the mounting screw is inserted, the deformation is prevented in all directions on a plane where the hole is opened. Difficult to be transmitted.
【００１３】[0013]
【発明の実施の形態】つぎに本発明の実施形態を図面に
したがって説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.
【００１４】第一実施形態・・・図１は、当該実施形態
に係る樹脂成形品１である摺動部品を実機２１のハウジ
ングの角隅部に取り付けた状態を示している。図２は、
図１におけるＣ方向矢視拡大図であり、図３は図１にお
けるＤ−Ｄ線断面図である。First Embodiment FIG. 1 shows a state in which a sliding component, which is a resin molded product 1 according to the present embodiment, is attached to a corner of a housing of an actual machine 21. FIG.
FIG. 3 is an enlarged view taken in the direction of arrow C in FIG. 1, and FIG. 3 is a sectional view taken along line DD in FIG. 1.
【００１５】図１に示すように、当該実施形態に係る樹
脂成形品１は先ず、所定の樹脂材料により成形された樹
脂本体部２を有しており、この樹脂本体部２の一部に、
当該樹脂成形品１を実機２１に取付固定するための取付
部３が設けられており、この取付部３の一部に、取付ネ
ジ３１を差し込むための孔部（ネジ穴とも称する）４が
設けられている。また樹脂本体部２の一面に、取付後の
作動時に相手部品（図示せず）と摺動する摺動部５が設
けられており、この摺動部５に、緩やかに湾曲した曲面
状の摺動面６が設けられている。As shown in FIG. 1, a resin molded product 1 according to the present embodiment has a resin main body 2 formed of a predetermined resin material.
A mounting portion 3 for mounting and fixing the resin molded product 1 to the actual machine 21 is provided, and a hole (also referred to as a screw hole) 4 for inserting the mounting screw 31 is provided in a part of the mounting portion 3. Have been. A sliding part 5 that slides on a mating part (not shown) at the time of operation after mounting is provided on one surface of the resin main body 2. The sliding part 5 has a gently curved curved sliding part. A moving surface 6 is provided.
【００１６】また、この樹脂成形品１は図示したよう
に、その側面部７，８を実機２１の角隅内面２２，２３
に当接させて位置決めされた状態で取付ネジ３１により
固定されるものであり、実機２１の取付面２４には、取
付ネジ３１をねじ込み固定するための穴状の雌ネジ部２
５が設けられている。Further, as shown in the figure, the resin molded product 1 has side surfaces 7 and 8 formed at inner corners 22 and 23 of a real machine 21.
And is fixed by the mounting screw 31 in a state where the mounting screw 31 is positioned in contact with the mounting surface 24 of the actual machine 21.
5 are provided.
【００１７】取付ネジ３１には、樹脂成形品１の孔部４
に差し込まれるとともに実機２１の雌ネジ部２５にねじ
込まれる雄ネジ部３２と、頭部３３とが一体に設けられ
ており、頭部３３の外径寸法が孔部４の内径寸法より大
きく設定されている。したがって取付ネジ３１の雄ネジ
部３２を孔部４に差し込んで雌ネジ部２５にねじ込む
と、頭部３３が樹脂成形品１の取付部３における孔部４
の開口周縁部を押圧して取付部３を実機２１の取付面２
４との間で締め付ける。したがってこの押圧ないし締付
けにより樹脂成形品１の取付部３に歪み等の変形が発生
するが、当該樹脂成形品１には、この変形がそのままの
大きさで摺動部５に伝わることがないように、以下の構
成が設けられている。The mounting screw 31 has a hole 4 in the resin molded product 1.
A male screw portion 32 that is inserted into the female screw portion 25 of the actual machine 21 and a head portion 33 are integrally provided, and the outer diameter of the head portion 33 is set to be larger than the inner diameter size of the hole portion 4. ing. Therefore, when the male screw part 32 of the mounting screw 31 is inserted into the hole part 4 and screwed into the female screw part 25, the head part 33 becomes the hole part 4 of the mounting part 3 of the resin molded product 1.
Pressing the peripheral edge of the opening, the mounting portion 3 is attached to the mounting surface 2 of the actual machine 21.
Tighten with 4. Therefore, deformation such as distortion occurs in the mounting portion 3 of the resin molded product 1 due to the pressing or tightening, but this deformation is not transmitted to the sliding portion 5 with the same size in the resin molded product 1. The following configuration is provided.
【００１８】すなわち、樹脂成形品１の表面中、取付部
３と摺動部５との間の中間位置を含む孔部４の周囲位置
に、取付ネジ３１の締付けにより発生する変形がそのま
ま摺動部５に伝わるのを遮断する肉盗み状の変形遮断部
（単に、肉盗みまたは肉盗み部とも称する）９が設けら
れており、またこの変形遮断部９が、取付部３の一方向
に設けられた摺動部５のみでなく取付部３の全周囲方向
に対して変形がそのまま伝わるのを遮断すべく、取付部
３の周辺位置に設けられており、更に詳しくは環状の凹
部ないし溝として孔部４の外径側に同心円状に設けられ
ている。That is, the deformation caused by the tightening of the mounting screw 31 slides on the surface of the resin molded product 1 around the hole 4 including the intermediate position between the mounting portion 3 and the sliding portion 5. A robbery-shaped deformation blocking portion (also simply referred to as a robbery or a robbing portion) 9 for blocking transmission to the portion 5 is provided, and the deformation blocking portion 9 is provided in one direction of the mounting portion 3. In order to prevent the deformation from being transmitted as it is to the entire peripheral direction of the mounting portion 3 as well as to the sliding portion 5 provided, it is provided at a peripheral position of the mounting portion 3, and more specifically, as an annular concave portion or groove. It is provided concentrically on the outer diameter side of the hole 4.
【００１９】また、この変形遮断部９は、取付ネジ３１
による樹脂成形品１の締付けを阻害しないように取付ネ
ジ３１の頭部３３の更に外径側に設けられており、すな
わち環状の変形遮断部９の内径寸法ｄ１が取付ネジ３１
の頭部３３の最大外径寸法ｄ ２より大きく設定されてい
る。したがって取付ネジ３１は頭部３３の下面全部を取
付部３に接触させて取付部３を強く締め付けることが可
能とされている。また変形遮断部９の深さｆは、上記し
たように取付部３の厚さｔの１／４〜５／６程度とする
のが好適であるが、図示の例では、取付部３の厚さｔの
凡そ半分とされている。The deformation blocking portion 9 is provided with a mounting screw 31.
Mounting screws so as not to hinder the tightening of the resin molded product 1
It is further provided on the outer diameter side of the head 33 of the jig 31,
That is, the inner diameter d of the annular deformation blocking portion 91Is the mounting screw 31
Maximum outer diameter dimension d of the head 33 2Is set larger
You. Therefore, the mounting screw 31 removes the entire lower surface of the head 33.
It is possible to strongly tighten the attachment part 3 by contacting the attachment part 3.
It is said to be capable. The depth f of the deformation blocking portion 9 is as described above.
As described above, the thickness is about 1/4 to 5/6 of the thickness t of the mounting portion 3.
In the illustrated example, the thickness t of the mounting portion 3 is
It is about half.
【００２０】上記構成を備えた樹脂成形品１は、取付ネ
ジ３１をもって実機２１の所定箇所に強固に固定され、
取付後の作動時に摺動部５において相手部品と摺動す
る。また取付ネジ３１により樹脂成形品１の取付部３を
強く締め付けると取付部３に歪み等の変形が発生する
が、孔部４の周囲位置に変形遮断部４が設けられている
ために、この変形遮断部４より先へは変形が伝わりにく
くなっている。したがって寸法上高精度が要求される摺
動部５に発生するうねり等の変形量を格段に縮小するこ
とができ、摺動部５の寸法を高精度に維持することがで
きる。The resin molded article 1 having the above configuration is firmly fixed to a predetermined portion of the actual machine 21 with the mounting screw 31.
At the time of operation after mounting, the sliding part 5 slides with the mating part. When the mounting portion 3 of the resin molded product 1 is strongly tightened by the mounting screw 31, deformation such as distortion occurs in the mounting portion 3. However, since the deformation blocking portion 4 is provided around the hole 4, The deformation is less likely to be transmitted beyond the deformation blocking portion 4. Therefore, the amount of deformation, such as undulation, generated in the sliding portion 5 that requires high precision in dimensions can be significantly reduced, and the dimensions of the sliding portion 5 can be maintained with high precision.
【００２１】本願発明者らが行なった試験結果でも、こ
の効果は確認されている。すなわち上記従来技術で行な
ったのと同様に、図２のないしの各ポイントでそれ
ぞれ摺動部５のａ面に発生する変形を測定したところ、
発生するうねりの大きさが図９のグラフ図に実線で示す
ように、最大で６μｍ程度までに抑えられることが確認
された。したがって上記従来技術のときにうねりの大き
さが最大で２０μｍ程度であったのと比較して、当該樹
脂成形品１によれば、変形の伝播が確実に抑えられてい
ることが判る。This effect has been confirmed in the test results conducted by the present inventors. That is, similarly to the above-described conventional technique, when the deformation occurring on the a-plane of the sliding portion 5 at each of the points shown in FIG. 2 was measured,
As shown by the solid line in the graph of FIG. 9, it was confirmed that the magnitude of the generated undulation can be suppressed to a maximum of about 6 μm. Therefore, it can be seen that, according to the resin molded product 1, the propagation of deformation is surely suppressed as compared with the case where the size of the undulation is about 20 μm at the maximum in the above-described conventional technique.
【００２２】また、上記樹脂成形品１によれば、取付ネ
ジ３１よる締付けトルクの大小の違いが変形遮断部９で
キャンセルされるために、寸法の変化度合いを縮小する
こともできる。Further, according to the resin molded product 1, since the difference in the magnitude of the tightening torque due to the mounting screw 31 is canceled by the deformation blocking portion 9, the degree of dimensional change can be reduced.
【００２３】更にまた、上記樹脂成形品１によれば、変
形遮断部９が環状とされて、この環状の変形遮断部９が
取付部３の周辺位置であって孔部４の外径側に同心円状
に設けられているために、取付部３の一方向に設けられ
た摺動部５のみでなく取付部３の全周囲方向に対して変
形が伝わりにくくなっている。したがって摺動部５のみ
ならず成形品１全体としても、伝播により発生する歪み
またはうねり等の変形量を縮小することができる。Further, according to the resin molded product 1, the deformation blocking portion 9 is formed in an annular shape, and the annular deformation blocking portion 9 is located around the mounting portion 3 and on the outer diameter side of the hole 4. Due to being provided concentrically, deformation is not easily transmitted not only to the sliding portion 5 provided in one direction of the mounting portion 3 but also to the entire peripheral direction of the mounting portion 3. Therefore, not only the sliding portion 5 but also the entire molded article 1 can reduce the amount of deformation such as distortion or undulation caused by propagation.
【００２４】第二実施形態・・・図４に示すように、上
記第一実施形態に係る構成に加えて、取付部３と摺動部
５との間の中間位置、更に詳しくは環状の変形遮断部９
と摺動部５との間の中間位置に第二の変形遮断部９Ａを
設けると、摺動部５に発生するうねり等の変形量を更に
縮小することができ、摺動部５の寸法精度を安定させる
ことができる。第二の変形遮断部９Ａの周縁の一部１０
は環状の変形遮断部９と同心円状の円弧形に形成されて
おり、よってこの円弧の角度範囲内では、変形荷重が放
射状に均一に作用する。Second Embodiment As shown in FIG. 4, in addition to the structure according to the first embodiment, an intermediate position between the mounting portion 3 and the sliding portion 5, more specifically, an annular deformation Cut-off part 9
When the second deformation blocking portion 9A is provided at an intermediate position between the sliding portion 5 and the sliding portion 5, the amount of deformation such as undulation generated in the sliding portion 5 can be further reduced, and the dimensional accuracy of the sliding portion 5 can be reduced. Can be stabilized. Part 10 of peripheral edge of second deformation blocking portion 9A
Is formed in a circular arc shape concentric with the ring-shaped deformation blocking portion 9, so that the deformation load acts uniformly radially within the angular range of the circular arc.
【００２５】第三実施形態・・・上記第一または第二実
施形態のように環状の変形遮断部９を設けるには、取付
部３の周囲にそれなりの平面スペースが必要とされる。
したがってこの平面スペースが確保されない場合には、
変形遮断部９の開口形状を以下のようにすると良い。Third Embodiment To provide the annular deformation blocking portion 9 as in the first or second embodiment, a certain plane space is required around the mounting portion 3.
Therefore, if this plane space is not secured,
The shape of the opening of the deformation blocking part 9 may be as follows.
【００２６】すなわち、図５に符号９Ｂで示す変形遮断
部のように、環状の円周上の一部を切り欠いた略ｃ字形
の開口形状とし、これを取付部３の周辺位置であって孔
部４の外径側に同心円状に配置する。または同図に符号
９Ｄで示す変形遮断部のように、直線状の開口形状と
し、これを摺動部５に沿って、または樹脂本体部２に設
けられた段差部１１に沿って配置する。That is, as shown in FIG. 5, a substantially c-shaped opening shape in which a part of an annular circumference is cut off is formed at a peripheral position of the mounting portion 3, like a deformation blocking portion indicated by reference numeral 9 B in FIG. It is arranged concentrically on the outer diameter side of the hole 4. Alternatively, like a deformation blocking portion indicated by reference numeral 9D in the same figure, a linear opening shape is formed, and this is disposed along the sliding portion 5 or along the step portion 11 provided in the resin main body 2.
【００２７】[0027]
【発明の効果】本発明は、以下の効果を奏する。The present invention has the following effects.
【００２８】すなわち先ず、上記構成を備えた本発明の
請求項１による樹脂成形品においては、取付ネジの締付
けにより取付部に発生する変形が摺動部に伝わるのを遮
断する肉盗み状の変形遮断部が設けられているために、
この変形遮断部を境にしてその先へ変形が伝わりにくく
なり、よって摺動部に発生する変形量を格段に縮小する
ことができ、摺動部の寸法を高精度に維持することがで
きる。また取付ネジよる締付けトルクの大小の違いが変
形遮断部でキャンセルされるために、寸法の変化度合い
を縮小することもできる。That is, first, in the resin molded product according to the first aspect of the present invention having the above-described structure, a burglar-like deformation for preventing the deformation generated in the mounting portion by the tightening of the mounting screw from being transmitted to the sliding portion. Because a blocking part is provided,
Deformation is less likely to be transmitted beyond the deformation blocking portion, so that the amount of deformation generated in the sliding portion can be significantly reduced, and the dimensions of the sliding portion can be maintained with high precision. Further, since the difference in the magnitude of the tightening torque due to the mounting screw is canceled by the deformation interrupting portion, the degree of dimensional change can be reduced.
【００２９】また、上記構成を備えた本発明の請求項２
による樹脂成形品においては、取付ネジの締付けにより
取付部に発生する変形が取付部の周囲に伝わるのを遮断
する肉盗み状の変形遮断部が設けられているために、こ
の変形遮断部を境にしてその先へ変形が伝わりにくくな
り、よって取付部の周囲に発生する変形量を格段に縮小
することができ、摺動部の寸法を高精度に維持すること
ができる。また取付ネジよる締付けトルクの大小の違い
が変形遮断部でキャンセルされるために、寸法の変化度
合いを縮小することもできる。Further, the present invention having the above-mentioned structure is provided in claim 2 of the present invention.
In the resin molded product according to the present invention, there is provided a burglar-shaped deformation blocking portion that blocks the deformation generated in the mounting portion by the tightening of the mounting screw from being transmitted to the periphery of the mounting portion. In this way, the deformation is less likely to be transmitted to the end, so that the amount of deformation generated around the mounting portion can be significantly reduced, and the dimensions of the sliding portion can be maintained with high accuracy. Further, since the difference in the magnitude of the tightening torque due to the mounting screw is canceled by the deformation interrupting portion, the degree of dimensional change can be reduced.
【００３０】更にまた、上記構成を備えた本発明の請求
項３による樹脂成形品においては、変形遮断部が、取付
ネジを差し込む孔部の外径側に同心円状に設けられてい
るために、取付部の全周囲方向に対して変形が伝わりに
くくなっている。したがって樹脂成形品の全体につい
て、伝播により発生する歪みまたはうねり等の変形量を
縮小することができる。Further, in the resin molded product according to the third aspect of the present invention having the above configuration, the deformation blocking portion is provided concentrically on the outer diameter side of the hole portion into which the mounting screw is inserted. It is difficult for the deformation to be transmitted in all directions around the mounting portion. Therefore, the deformation amount such as distortion or undulation caused by propagation can be reduced for the entire resin molded product.
【図１】本発明の第一実施形態に係る樹脂成形品を実機
に取り付けた状態の説明図FIG. 1 is an explanatory view showing a state in which a resin molded product according to a first embodiment of the present invention is mounted on an actual machine.
【図２】図１におけるＣ方向矢視拡大図FIG. 2 is an enlarged view taken in the direction of arrow C in FIG. 1;
【図３】図１におけるＤ−Ｄ線断面図FIG. 3 is a sectional view taken along line DD in FIG. 1;
【図４】本発明の第二実施形態に係る樹脂成形品を実機
に取り付けた状態の説明図FIG. 4 is an explanatory view of a state in which a resin molded product according to a second embodiment of the present invention is mounted on an actual machine.
【図５】本発明の第三実施形態に係る樹脂成形品を実機
に取り付けた状態の説明図FIG. 5 is an explanatory view showing a state in which a resin molded product according to a third embodiment of the present invention is mounted on an actual machine.
【図６】従来例に係る樹脂成形品を実機に取り付けた状
態の説明図FIG. 6 is an explanatory view showing a state in which a resin molded product according to a conventional example is mounted on an actual machine.
【図７】図６におけるＡ方向矢視拡大図FIG. 7 is an enlarged view taken in the direction of arrow A in FIG. 6;
【図８】図６におけるＢ−Ｂ線断面図8 is a sectional view taken along line BB in FIG. 6;
【図９】発生するうねりの測定結果を示すグラフ図FIG. 9 is a graph showing a measurement result of generated waviness.
１ 樹脂成形品 ２ 樹脂本体部 ３ 取付部 ４ 孔部 ５ 摺動部 ６ 摺動面 ７，８ 側面部 ９，９Ａ，９Ｂ，９Ｃ 変形遮断部 １０ 周縁の一部 １１ 段差部 ２１ 実機 ２２，２３ 角隅内面 ２４ 取付面 ２５ 雌ネジ部 ３１ 取付ネジ ３２ 雄ネジ部 ３３ 頭部 DESCRIPTION OF SYMBOLS 1 Resin molded product 2 Resin main body part 3 Mounting part 4 Hole part 5 Sliding part 6 Sliding surface 7, 8 Side surface part 9, 9A, 9B, 9C Deformation interruption part 10 Part of peripheral edge 11 Step part 21 Actual machine 22, 23 Inner corner 24 Mounting surface 25 Female thread 31 Mounting screw 32 Male screw 33 Head
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１２年５月１２日（２０００．５．１
２）[Submission Date] May 12, 2000 (2000.5.1)
2)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２６[Correction target item name] 0026
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２６】すなわち、図５に符号９Ｂで示す変形遮断
部のように、環状の円周上の一部を切り欠いた略ｃ字形
の開口形状とし、これを取付部３の周辺位置であって孔
部４の外径側に同心円状に配置する。または同図に符号
９Ｃで示す変形遮断部のように、直線状の開口形状と
し、これを摺動部５に沿って、または樹脂本体部２に設
けられた段差部１１に沿って配置する。That is, as shown in FIG. 5, a substantially c-shaped opening shape in which a part of an annular circumference is cut off is formed at a peripheral position of the mounting portion 3, like a deformation blocking portion indicated by reference numeral 9 B in FIG. It is arranged concentrically on the outer diameter side of the hole 4. Or the code in the figure
Like a deformation blocking part shown by 9C , it has a linear opening shape, and this is arranged along the sliding part 5 or along the step part 11 provided in the resin main body part 2.
Claims (3)
けられる取付部（３）と、取付後の作動時に相手部品と
摺動する摺動部（５）とを一体に備えた樹脂成形品
（１）であって、 前記取付ネジ（３１）の締付けにより前記取付部（３）
に発生する変形が前記摺動部（５）に伝わるのを遮断す
る肉盗み状の変形遮断部（９）が設けられていることを
特徴とする樹脂成形品。A resin molded product (1) integrally provided with a mounting portion (3) which is tightened by a mounting screw (31) at the time of mounting, and a sliding portion (5) which slides with a mating component at the time of operation after mounting. ), Wherein the mounting portion (3) is tightened by the mounting screw (31).
A resin molded product characterized in that it is provided with a burglar-shaped deformation blocking portion (9) for blocking the deformation occurring in the sliding portion (5) from being transmitted to the sliding portion (5).
けられる取付部（３）を備えた樹脂成形品（１）であっ
て、 前記取付ネジ（３１）の締付けにより前記取付部（３）
に発生する変形が前記取付部（３）の周囲に伝わるのを
遮断する肉盗み状の変形遮断部（９）が設けられている
ことを特徴とする樹脂成形品。2. A resin molded product (1) having a mounting portion (3) which is tightened by a mounting screw (31) at the time of mounting, wherein the mounting portion (3) is tightened by the mounting screw (31).
A resin molded product characterized in that it is provided with a burglar-shaped deformation blocking portion (9) for blocking the deformation occurring at the portion from transmitting to the periphery of the mounting portion (3).
おいて、 変形遮断部（９）が、取付ネジ（３１）を差し込む孔部
（４）の外径側に同心円状に設けられていることを特徴
とする樹脂成形品。3. The resin molded product (1) according to claim 1, wherein the deformation blocking portion (9) is provided concentrically on the outer diameter side of the hole (4) into which the mounting screw (31) is inserted. A resin molded product characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11069997A JP2000266015A (en) | 1999-03-16 | 1999-03-16 | Resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11069997A JP2000266015A (en) | 1999-03-16 | 1999-03-16 | Resin molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000266015A true JP2000266015A (en) | 2000-09-26 |
Family
ID=13418835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11069997A Pending JP2000266015A (en) | 1999-03-16 | 1999-03-16 | Resin molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000266015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012097760A (en) * | 2010-10-08 | 2012-05-24 | Enplas Corp | Helical gear |
-
1999
- 1999-03-16 JP JP11069997A patent/JP2000266015A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012097760A (en) * | 2010-10-08 | 2012-05-24 | Enplas Corp | Helical gear |
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