JP2015095440A - Brush - Google Patents
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- JP2015095440A JP2015095440A JP2013236129A JP2013236129A JP2015095440A JP 2015095440 A JP2015095440 A JP 2015095440A JP 2013236129 A JP2013236129 A JP 2013236129A JP 2013236129 A JP2013236129 A JP 2013236129A JP 2015095440 A JP2015095440 A JP 2015095440A
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Abstract
Description
本発明は、モータの回転軸に接触させて使用される導電性のブラシに関する。 The present invention relates to a conductive brush used in contact with a rotating shaft of a motor.
従来、導電性の繊維（ブラシ糸）を回転軸などに接触させることによって、回転軸の帯電量を低減するブラシがある。そして、特許文献１には、こうした導電性の繊維を板状の部材で挟んで保持する構成が開示されている。 2. Description of the Related Art Conventionally, there is a brush that reduces the amount of charge on a rotating shaft by bringing conductive fibers (brush yarn) into contact with the rotating shaft. Patent Document 1 discloses a configuration in which such conductive fibers are sandwiched and held between plate-like members.
ところで、上述のように導電性の繊維を板状の部材で挟むことによって保持すると、回転する回転軸から外力を受けた場合などに、繊維が抜け落ちやすいという課題がある。
本発明は、こうした実情に鑑みてなされたものであり、その目的は、ブラシ糸を安定して保持することができるブラシを提供することにある。
By the way, if the conductive fibers are held by being sandwiched between plate-like members as described above, there is a problem that the fibers are likely to fall off when receiving an external force from the rotating rotating shaft.
This invention is made | formed in view of such a situation, The objective is to provide the brush which can hold | maintain a brush thread | yarn stably.
以下、上記課題を解決するための手段及びその作用効果について記載する。
上記課題を解決するブラシは、モータの回転軸に接触させて使用される導電性のブラシであって、複数のブラシ糸を保持する保持糸が形成する保持部を有するブラシ部材と、前記保持部を係止可能な係止部を有して、前記ブラシ部材を保持する保持体と、を備えることを要旨とする。
Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A brush that solves the above problems is a conductive brush that is used in contact with a rotating shaft of a motor, and includes a brush member having a holding portion formed by a holding yarn that holds a plurality of brush yarns, and the holding portion And a holding body that holds the brush member.
この構成によれば、保持糸によって複数のブラシ糸を安定して保持することが可能となるとともに、係止部が保持部を係止することによって、保持体がブラシ部材を安定して保持することが可能になる。したがって、モータの回転軸に接触するブラシ糸を安定して保持することができる。 According to this configuration, the plurality of brush yarns can be stably held by the holding yarn, and the holding body stably holds the brush member by the locking portion locking the holding portion. It becomes possible. Therefore, it is possible to stably hold the brush thread that contacts the rotating shaft of the motor.
上記構成のブラシにおいて、前記保持体は、第１保持部材と第２保持部材とを有し、前記第１保持部材と前記第２保持部材との間に前記保持部を収容可能な収容部を形成することが好ましい。 In the brush having the above-described configuration, the holding body includes a first holding member and a second holding member, and an accommodation portion capable of accommodating the holding portion between the first holding member and the second holding member. It is preferable to form.
この構成によれば、第１保持部材と第２保持部材との間に形成される収容部に保持部を収容することによって、保持体がブラシ部材を安定して保持することができる。
上記構成のブラシにおいて、前記収容部は、前記第１保持部材及び前記第２保持部材のうち少なくとも一方に設けられた凹部からなることが好ましい。
According to this structure, a holding body can hold | maintain a brush member stably by accommodating a holding | maintenance part in the accommodating part formed between a 1st holding member and a 2nd holding member.
The brush of the said structure WHEREIN: It is preferable that the said accommodating part consists of a recessed part provided in at least one among the said 1st holding member and the said 2nd holding member.
この構成によれば、凹部に保持部を収容することによって、ブラシ部材を安定して保持することができる。また、第１保持部材及び第２保持部材のうちの一方に設けられた凹部に保持部を収容した上で、残る他方の保持部材をブラシ部材にかぶせるように組み合わせることによって、ブラシの組み立て作業を容易に行うことができる。 According to this structure, a brush member can be stably hold | maintained by accommodating a holding part in a recessed part. Further, after the holding portion is accommodated in the concave portion provided in one of the first holding member and the second holding member, the other holding member is combined so as to cover the brush member, thereby assembling the brush. It can be done easily.
上記構成のブラシにおいて、前記ブラシ部材は、複数の前記ブラシ糸を束ねた束状体を並列した構造を備え、前記係止部は、並列する前記束状体の間に形成される隙間に挿入されることが好ましい。 In the brush having the above-described configuration, the brush member has a structure in which a bundle of bundles of a plurality of brush yarns are arranged in parallel, and the locking portion is inserted into a gap formed between the bundles arranged in parallel. It is preferred that
この構成によれば、並列する束状体の間に形成される隙間に係止部を挿入することにより、ブラシ部材を安定して係止することができるとともに、束状体が並列する並列方向におけるブラシ部材の移動を規制することができる。 According to this configuration, the brush member can be stably locked by inserting the locking portion into the gap formed between the parallel bundles, and the parallel direction in which the bundles are arranged in parallel The movement of the brush member can be regulated.
上記構成のブラシにおいて、前記保持糸は、並列する複数の前記ブラシ糸を編むことで前記ブラシ糸を保持し、前記ブラシ部材は、並列する前記ブラシ糸の並列方向における端部同士で前記保持糸が接合されることにより、環状に形成されることが好ましい。 In the brush having the above-described configuration, the holding yarn holds the brush yarn by knitting a plurality of brush yarns arranged in parallel, and the brush member holds the holding yarn at ends in the parallel direction of the brush yarns arranged in parallel. Are preferably formed in a ring shape.
この構成によれば、並列するブラシ糸の並列方向における端部同士で保持糸が接合されることによって、ブラシ糸を編んだ保持糸がほどけにくくなる。これにより、ブラシ糸の脱落が抑制されるので、ブラシ糸を安定して保持することができる。また、ブラシ部材が環状をなすことによって、保持部の収容部への収容が容易になるとともに、回転軸の外周面の全周に亘ってブラシ糸を接触させることができる。 According to this configuration, the holding yarn is joined at the end portions in the parallel direction of the brush yarns arranged in parallel, so that the holding yarn knitted with the brush yarn is difficult to unwind. As a result, the falling off of the brush thread is suppressed, so that the brush thread can be stably held. Further, since the brush member has an annular shape, the holding portion can be easily accommodated in the accommodating portion, and the brush thread can be brought into contact with the entire outer circumference of the rotating shaft.
本発明によれば、ブラシ糸を安定して保持することができる。 According to the present invention, the brush yarn can be stably held.
以下、ブラシの実施形態について、図面に基づいて説明する。
（第１実施形態）
第１実施形態に例示するブラシは、モータの回転軸に接触させて使用される導電性のブラシである。
Hereinafter, embodiments of the brush will be described with reference to the drawings.
(First embodiment)
The brush illustrated in the first embodiment is a conductive brush that is used in contact with the rotating shaft of the motor.
図１に示すように、本実施形態のブラシ２１は、例えば、モータ本体１１内に収容された固定子１２と、固定子１２への通電に伴って回転する回転子１３と、回転子１３に連結された回転軸１４と、回転軸１４の軸方向（図１では左右方向）において回転子１３の両側に配置されるベアリング１５，１６とを備えるモータ１７に取り付けられる。 As shown in FIG. 1, the brush 21 of the present embodiment includes, for example, a stator 12 accommodated in the motor main body 11, a rotor 13 that rotates when the stator 12 is energized, and a rotor 13. The rotating shaft 14 is connected to a motor 17 including a rotating shaft 14 and bearings 15 and 16 disposed on both sides of the rotor 13 in the axial direction of the rotating shaft 14 (left and right in FIG. 1).
例えば、モータ１７をインバータ制御する場合などには、回転軸１４上に電圧が発生して、ベアリング１５，１６の電食が発生したり、周辺の電子機器にノイズを与えたりすることがある。その点、導電性のブラシ２１をモータ本体１１に取り付けて回転軸１４に接触させるとともに、電気伝導体１８を介してモータ本体１１を接地することによって、回転軸１４の帯電が抑制される。したがって、モータ１７にブラシ２１を取り付けることによって、ベアリング１５，１６の電食やノイズの発生を抑制することが可能になる。 For example, when the motor 17 is controlled by an inverter, a voltage is generated on the rotating shaft 14, and electric corrosion of the bearings 15, 16 may occur or noise may be given to surrounding electronic devices. In that respect, the conductive brush 21 is attached to the motor body 11 and brought into contact with the rotating shaft 14, and the motor body 11 is grounded via the electric conductor 18, whereby charging of the rotating shaft 14 is suppressed. Therefore, by attaching the brush 21 to the motor 17, it is possible to suppress the occurrence of electric corrosion and noise in the bearings 15 and 16.
図２に示すように、ブラシ２１は、モータ１７の回転軸１４に接触可能な複数のブラシ糸２３を有するブラシ部材２２と、ブラシ部材２２を保持する保持体３１とを備える。本実施形態の保持体３１は環状（平面視においては円環状）をなして、回転軸１４の外周面１４ａに対向する湾曲した内縁３２と外縁３３とを有している。 As shown in FIG. 2, the brush 21 includes a brush member 22 having a plurality of brush threads 23 that can contact the rotating shaft 14 of the motor 17, and a holding body 31 that holds the brush member 22. The holding body 31 of the present embodiment has an annular shape (annular shape in plan view) and has a curved inner edge 32 and an outer edge 33 that face the outer peripheral surface 14 a of the rotating shaft 14.
なお、保持体３１は、例えば円弧状の内縁３２を有するものを複数用意して、これら複数の保持体３１を回転軸１４の周方向に並ぶように組み合わせることで環状をなすようにしてもよい。また、保持体３１の外縁３３は、必ずしも平面視円弧状または平面視円状に形成されなくてもよく、例えば取り付けに適した形状などに変更することができる。 For example, a plurality of holding bodies 31 having an arcuate inner edge 32 may be prepared, and the plurality of holding bodies 31 may be combined so as to be arranged in the circumferential direction of the rotating shaft 14 to form an annular shape. . Further, the outer edge 33 of the holding body 31 does not necessarily have to be formed in a circular arc shape in a plan view or a circular shape in a plan view, and can be changed to a shape suitable for attachment, for example.
保持体３１は、例えば金属などの導電性を有する材料からなり、対をなしてブラシ部材２２を挟持可能な環状の第１保持部材４１と、同じく環状の第２保持部材５１とを有している。第１保持部材４１は、外径は第２保持部材５１よりも大きく、内径は第２保持部材５１と等しい。そのため、保持体３１の外縁３３は第１保持部材４１の外縁であり、保持体３１の内縁３２は第１保持部材４１の内縁部４１ａ及び第２保持部材５１の内縁部５１ａによって形成される。 The holding body 31 is made of a conductive material such as metal, and has an annular first holding member 41 capable of sandwiching the brush member 22 in pairs and an annular second holding member 51. Yes. The first holding member 41 has an outer diameter larger than that of the second holding member 51 and an inner diameter equal to that of the second holding member 51. Therefore, the outer edge 33 of the holding body 31 is the outer edge of the first holding member 41, and the inner edge 32 of the holding body 31 is formed by the inner edge portion 41 a of the first holding member 41 and the inner edge portion 51 a of the second holding member 51.
第１保持部材４１には、第２保持部材５１が嵌合される嵌合部４２が凹設されている。そして、第２保持部材５１が第１保持部材４１の嵌合部４２に嵌合されることによって、保持体３１が形成される。また、第２保持部材５１が第１保持部材４１の嵌合部４２に嵌め込まれるときに、両保持部材４１，５１の間にブラシ部材２２を挟むと、ブラシ部材２２を保持体３１で保持するブラシ２１が形成される。なお、第２保持部材５１は嵌合部４２に圧入することで第１保持部材４１に固定してもよいし、図示しないリベット等の固定部材や接着剤、両面テープ等によって第１保持部材４１に固定してもよい。 The first holding member 41 has a fitting portion 42 into which the second holding member 51 is fitted. Then, the holding body 31 is formed by fitting the second holding member 51 into the fitting portion 42 of the first holding member 41. Further, when the second holding member 51 is fitted into the fitting portion 42 of the first holding member 41, the brush member 22 is held by the holding body 31 when the brush member 22 is sandwiched between the both holding members 41, 51. A brush 21 is formed. The second holding member 51 may be fixed to the first holding member 41 by press-fitting into the fitting portion 42, or may be fixed by a fixing member such as a rivet (not shown), an adhesive, a double-sided tape, or the like. It may be fixed to.
保持体３１に保持されたブラシ部材２２は、第１保持部材４１と第２保持部材５１との間に形成される隙間を通じて、保持体３１の内縁３２からブラシ糸２３の先端が突出する態様となる。そして、環状をなすブラシ２１が回転軸１４に挿通されると、保持体３１の内縁３２から突出するブラシ糸２３の先端が回転軸１４に接触する。なお、ブラシ部材２２のブラシ糸２３は、回転軸１４の直径に応じてカットすることで、任意の長さにすることができる。 The brush member 22 held by the holding body 31 has a mode in which the tip of the brush thread 23 protrudes from the inner edge 32 of the holding body 31 through a gap formed between the first holding member 41 and the second holding member 51. Become. When the annular brush 21 is inserted through the rotary shaft 14, the tip of the brush thread 23 protruding from the inner edge 32 of the holding body 31 comes into contact with the rotary shaft 14. In addition, the brush thread 23 of the brush member 22 can be made into arbitrary length by cutting according to the diameter of the rotating shaft 14.
ブラシ部材２２は、回転軸１４に対してブラシ糸２３が１ｍｍ程度重なるように接触すると、効率よく回転軸１４の静電気を除去することができるが、回転軸１４と重ならない程度に接触した場合にも、静電気を除去することができる。また、ブラシ糸２３が回転軸１４から１ｍｍ程度離れるようにブラシ２１を配置した場合にも、回転軸１４の帯電を抑制する効果が期待できる。 When the brush member 22 contacts the rotating shaft 14 so that the brush thread 23 overlaps by about 1 mm, the static electricity of the rotating shaft 14 can be efficiently removed, but when the brush member 22 contacts the rotating shaft 14 so as not to overlap. Even static electricity can be removed. Further, even when the brush 21 is arranged so that the brush thread 23 is separated from the rotary shaft 14 by about 1 mm, an effect of suppressing the charging of the rotary shaft 14 can be expected.
図３に示すように、ブラシ部材２２は、方向Ｘに延びる複数のブラシ糸２３が形成するブラシ部２４と保持部２６とを有している。保持部２６は、方向Ｘと交差する方向Ｙに並列する複数のブラシ糸２３を保持する保持糸２５によって形成される。 As shown in FIG. 3, the brush member 22 has a brush portion 24 and a holding portion 26 formed by a plurality of brush threads 23 extending in the direction X. The holding portion 26 is formed by a holding yarn 25 that holds a plurality of brush yarns 23 arranged in parallel in the direction Y intersecting the direction X.
ブラシ糸２３は、例えば炭素などの導電性を有する材料を含むことによって、導電性を備える。本実施形態のブラシ部材２２は、カーボン繊維をブラシ糸２３とするとともに、このカーボン繊維を例えば６０００〜１２０００本程度束ねた束状体２８を保持糸２５で編むことによって、束状体２８がブラシ糸２３の長さ方向Ｘと交差する方向Ｙ（束状体２８の並列方向Ｙ）に並列した構造を備える。 The brush yarn 23 has conductivity by including a conductive material such as carbon. The brush member 22 of the present embodiment uses the carbon fiber as the brush yarn 23, and the bundle 28 is knitted with the holding yarn 25 by knitting a bundle 28 of about 6000 to 12,000 carbon fibers. A structure in which the yarn 23 is arranged in parallel in the direction Y (the parallel direction Y of the bundles 28) intersecting the length direction X of the yarn 23 is provided.
保持部２６は、束状体２８を熱融着性の繊維（例えば、ポリプロピレン、ポリエチレンテレフタレートまたはポリアミドからなる繊維）を含む保持糸２５で編んだ後、加熱により保持糸２５を溶融させることによって形成するのが好ましい。なお、保持糸２５の溶融は、加熱の他、超音波による溶融等によって行うこともできる。 The holding portion 26 is formed by knitting the bundle 28 with a holding yarn 25 containing a heat-fusible fiber (for example, a fiber made of polypropylene, polyethylene terephthalate or polyamide), and then melting the holding yarn 25 by heating. It is preferable to do this. Note that the holding yarn 25 can be melted by ultrasonic melting or the like in addition to heating.
ブラシ部材２２において、保持部２６は、保持糸２５が加えられている分、ブラシ部２４よりも太くなる。すなわち、ブラシ糸２３の長さ方向Ｘにおいて、保持部２６が形成される側を基端側とすると、ブラシ部材２２は、先端側に形成されるブラシ部２４よりも、基端側の方が太い。 In the brush member 22, the holding portion 26 is thicker than the brush portion 24 due to the addition of the holding yarn 25. That is, in the length direction X of the brush thread 23, if the side on which the holding portion 26 is formed is the base end side, the brush member 22 is closer to the base end side than the brush portion 24 formed on the front end side. thick.
なお、図３に二点鎖線で示すように、保持糸２５を編むときに一対の補助糸２７を編み込んで、保持部２６をより太くしてもよい。補助糸２７の数は１本にしてもよいし、３本以上にしてもよい。補助糸２７を追加することでブラシ糸２３の保持をより強固に行うことが可能になるとともに、保持部２６の太さを調整することが可能になる。また、束状体２８を構成する繊維（ブラシ糸２３）の数や、並列方向Ｙでの単位長さにおける保持糸２５の編み目の数を変更することによって、ブラシ糸２３や束状体２８の密度を変化させることが可能である。 As indicated by a two-dot chain line in FIG. 3, when the holding yarn 25 is knitted, a pair of auxiliary yarns 27 may be knitted to make the holding portion 26 thicker. The number of auxiliary yarns 27 may be one, or may be three or more. By adding the auxiliary yarn 27, the brush yarn 23 can be held more firmly, and the thickness of the holding portion 26 can be adjusted. Further, by changing the number of fibers (brush yarns 23) constituting the bundle 28 and the number of stitches of the holding yarn 25 in the unit length in the parallel direction Y, the brush yarns 23 and the bundles 28 are changed. It is possible to change the density.
図４に示すように、ブラシ部材２２は、蛇行状に延びるブラシ糸２３（本実施形態では、複数のブラシ糸２３が束になった束状体２８）の両側の湾曲部分を保持糸２５によって編んだ後、図４に一点鎖線で示す部分でブラシ糸２３（束状体２８）を切断することによって、同時に２つ形成することができる。 As shown in FIG. 4, the brush member 22 has curved portions on both sides of a brush thread 23 extending in a serpentine shape (a bundled body 28 in which a plurality of brush threads 23 are bundled in this embodiment) by holding threads 25. After knitting, two brush yarns 23 (bundles 28) can be formed at the same time by cutting the brush yarn 23 (bundle 28) at the portion indicated by the alternate long and short dash line in FIG.
図４に二点鎖線で示すように、束状体２８を編む保持糸２５の数を２以上に増やして、方向Ｘにおける保持部２６の長さを長くするとともに、ブラシ糸２３をより強固に保持するようにしてもよい。これに対して、上述したように保持糸２５を編むときに補助糸２７を追加すれば、方向Ｘにおける保持部２６の長さを長くすることなく、ブラシ糸２３をより強固に保持することができる。このように、保持部２６の大きさは任意に変更することができる。 As shown by a two-dot chain line in FIG. 4, the number of the holding yarns 25 for knitting the bundle 28 is increased to 2 or more, and the length of the holding portion 26 in the direction X is increased, and the brush yarn 23 is made stronger. You may make it hold | maintain. On the other hand, if the auxiliary yarn 27 is added when the holding yarn 25 is knitted as described above, the brush yarn 23 can be held more firmly without increasing the length of the holding portion 26 in the direction X. it can. As described above, the size of the holding portion 26 can be arbitrarily changed.
図５に示すように、ブラシ部材２２は、並列する束状体２８の並列方向（図３及び図４における並列方向Ｙ）における端部同士（図５において矢印で示す位置）で保持糸２５が接合されることにより、環状に形成される。保持糸２５の接合は、例えば、熱溶着、超音波溶着または接着等によって行うことができる。 As shown in FIG. 5, the brush member 22 has the holding thread 25 at the ends (positions indicated by arrows in FIG. 5) in the parallel direction (parallel direction Y in FIGS. 3 and 4) of the bundles 28 arranged in parallel. By joining, it is formed in an annular shape. The holding yarn 25 can be joined by, for example, thermal welding, ultrasonic welding, adhesion, or the like.
第１保持部材４１及び第２保持部材５１のうち少なくとも一方（本実施形態においては第１保持部材４１）は、嵌合部４２よりも内縁３２寄りとなる位置に凹部３５を有している。凹部３５は、第１保持部材４１と第２保持部材５１との間に保持部２６を収容可能な収容部を形成する。 At least one of the first holding member 41 and the second holding member 51 (the first holding member 41 in this embodiment) has a recess 35 at a position closer to the inner edge 32 than the fitting portion 42. The recess 35 forms a storage portion that can store the holding portion 26 between the first holding member 41 and the second holding member 51.
図６に示すように、第１保持部材４１に形成された凹部３５の内底面と交差する２つの内側面のうち、内縁３２側の内側面はブラシ部材２２の保持部２６を係止可能な係止部３６として機能する。また、第１保持部材４１に形成された凹部３５の内底面と交差する２つの内側面のうち、外縁３３側の内側面は位置決め部３７として機能する。 As shown in FIG. 6, of the two inner surfaces intersecting the inner bottom surface of the recess 35 formed in the first holding member 41, the inner surface on the inner edge 32 side can lock the holding portion 26 of the brush member 22. It functions as the locking portion 36. Of the two inner surfaces intersecting the inner bottom surface of the recess 35 formed in the first holding member 41, the inner surface on the outer edge 33 side functions as the positioning portion 37.
次に、本実施形態のブラシ２１の作用を説明する。
ブラシ２１を構成するブラシ部材２２は、束状体２８の並び方向における端部同士で保持糸２５が溶着されるので、保持糸２５がほどけにくい。また、保持体３１を構成する保持部材４１，５１は環状をなすので、環状をなすブラシ部材２２を保持するのに適しているとともに、回転軸１４の周囲に配置しやすい。なお、ブラシ部材２２は環状をなすが、２つの保持部材４１，５１でこれを挟むことによって、ブラシ部材２２と保持体３１とを一体化する作業を容易に行うことができる。
Next, the operation of the brush 21 of this embodiment will be described.
Since the holding yarn 25 is welded to the brush member 22 constituting the brush 21 at the ends in the arrangement direction of the bundles 28, the holding yarn 25 is difficult to unwind. Further, since the holding members 41 and 51 constituting the holding body 31 form an annular shape, the holding members 41 and 51 are suitable for holding the annular brush member 22 and are easily disposed around the rotating shaft 14. Although the brush member 22 has an annular shape, the work of integrating the brush member 22 and the holding body 31 can be easily performed by sandwiching the brush member 22 between the two holding members 41 and 51.
ブラシ部材２２を第１保持部材４１と第２保持部材５１とで挟持するときには、第１保持部材４１の凹部３５にブラシ部材２２の保持部２６を収容して位置決めをした状態で、第２保持部材５１を第１保持部材４１に嵌合すると、作業性がよい。そして、第１保持部材４１の凹部３５にブラシ部材２２の保持部２６を収容する際には、係止部３６及び位置決め部３７によってブラシ部材２２の径方向における位置決めを行うことができる。 When the brush member 22 is sandwiched between the first holding member 41 and the second holding member 51, the holding portion 26 of the brush member 22 is accommodated in the concave portion 35 of the first holding member 41 and the second holding is performed. When the member 51 is fitted to the first holding member 41, workability is good. When the holding part 26 of the brush member 22 is accommodated in the recess 35 of the first holding member 41, the brush member 22 can be positioned in the radial direction by the locking part 36 and the positioning part 37.
ここで、ブラシ部材２２のブラシ部２４を、多数のブラシ糸２３を束ねた束状体２８を切断することで形成する場合（図４参照）には、束をなすブラシ糸２３が切断に伴って扇状に拡がろうとする傾向がある。そのため、環状になっていないブラシ部材２２を凹部３５に収容する場合には、ブラシ糸２３が拡がろうとする作用に反して環状を形成する必要があり、作業がしにくい。その点、あらかじめ保持糸２５の端部を溶着することでブラシ部材２２を環状にしておけば、保持部２６の凹部３５への収容作業を容易に行うことができる。 Here, when the brush portion 24 of the brush member 22 is formed by cutting a bundle-like body 28 in which a large number of brush yarns 23 are bundled (see FIG. 4), the brush yarns 23 forming a bundle are accompanied by cutting. Tend to spread like a fan. For this reason, when the brush member 22 that is not in an annular shape is accommodated in the recess 35, it is necessary to form an annular shape against the action of the brush yarn 23 trying to spread, and the operation is difficult. In that respect, if the brush member 22 is annularly formed by welding the end of the holding yarn 25 in advance, the operation of accommodating the holding portion 26 in the recess 35 can be easily performed.
第１保持部材４１の凹部３５にブラシ部材２２の保持部２６を収容したときに、保持部２６を接着剤等で凹部３５内に接着しておくと、より確実にブラシ部材２２の位置決めを行うことができる。凹部３５の大きさは、保持部２６の大きさに応じて任意に変更することができる。例えば、保持部２６に対して凹部３５を大きめにすれば、保持部２６を凹部３５に収容する作業が容易になる一方、凹部３５を小さめにすれば、ブラシ部材２２の移動を規制することができる。 When the holding part 26 of the brush member 22 is accommodated in the concave part 35 of the first holding member 41, the brush member 22 is more reliably positioned by adhering the holding part 26 in the concave part 35 with an adhesive or the like. be able to. The size of the recess 35 can be arbitrarily changed according to the size of the holding portion 26. For example, if the concave portion 35 is made larger with respect to the holding portion 26, the operation of accommodating the holding portion 26 in the concave portion 35 becomes easier, while if the concave portion 35 is made smaller, the movement of the brush member 22 can be restricted. it can.
ブラシ部材２２は、保持体３１に保持された場合に、保持部２６が係止部３６によって係止された状態になるので、径方向における内縁３２側への移動が規制される。また、保持体３１に保持されたブラシ部材２２は、径方向における外縁３３側への移動が位置決め部３７によって規制される。 When the brush member 22 is held by the holding body 31, the holding portion 26 is locked by the locking portion 36, so that the movement toward the inner edge 32 in the radial direction is restricted. The movement of the brush member 22 held by the holding body 31 toward the outer edge 33 in the radial direction is restricted by the positioning portion 37.
ブラシ２１のブラシ糸２３は回転軸１４の回転に伴って外力を受けるが、束状体２８は保持糸２５によって編まれているとともに、ブラシ糸２３は溶融された保持糸２５によって溶着されているので、ブラシ糸２３の脱落が抑制される。また、ブラシ部材２２は係止部３６に保持部２６が係止されるので、保持体３１からの脱落が抑制される。 The brush yarn 23 of the brush 21 receives an external force as the rotary shaft 14 rotates, but the bundle 28 is knitted by the holding yarn 25 and the brush yarn 23 is welded by the molten holding yarn 25. Therefore, the falling off of the brush thread 23 is suppressed. Moreover, since the holding part 26 is latched by the latching | locking part 36, the brush member 22 is suppressed from dropping from the holding body 31.
さらに、ブラシ部材２２は、保持部２６が凹部３５からなる収容部に収容されることによって径方向における移動が規制されるので、回転軸１４に対する相対位置を一定に保つことができる。また、ブラシ部材２２が保持糸２５の溶着によって環状をなしていて、径方向における長さが変化しにくいことも、回転軸１４に対する相対位置の変化を抑制することに貢献している。 Further, since the movement in the radial direction of the brush member 22 is restricted when the holding portion 26 is accommodated in the accommodating portion including the concave portion 35, the relative position with respect to the rotating shaft 14 can be kept constant. Further, since the brush member 22 has an annular shape due to the welding of the holding yarn 25, the length in the radial direction is hardly changed, which contributes to suppressing the change in the relative position with respect to the rotating shaft 14.
以上説明した第１実施形態によれば、次のような効果が発揮される。
（１）保持糸２５によって複数のブラシ糸２３を安定して保持することが可能となるとともに、係止部３６が保持部２６を係止することによって、保持体３１がブラシ部材２２を安定して保持することが可能になる。したがって、モータ１７の回転軸１４に接触するブラシ糸２３を安定して保持することができる。
According to the first embodiment described above, the following effects are exhibited.
(1) The plurality of brush yarns 23 can be stably held by the holding yarn 25, and the holding portion 31 locks the holding portion 26 so that the holding body 31 stabilizes the brush member 22. Can be held. Therefore, it is possible to stably hold the brush thread 23 that contacts the rotating shaft 14 of the motor 17.
（２）第１保持部材４１と第２保持部材５１との間に形成される収容部である凹部３５に保持部２６を収容することによって、保持体３１がブラシ部材２２を安定して保持することができる。 (2) The holding body 31 stably holds the brush member 22 by housing the holding portion 26 in the concave portion 35 that is a housing portion formed between the first holding member 41 and the second holding member 51. be able to.
（３）第１保持部材４１に設けられた凹部３５に保持部２６を収容した上で、第２保持部材５１をブラシ部材２２にかぶせるように組み合わせることによって、ブラシ２１の組み立て作業を容易に行うことができる。 (3) The holder 21 is accommodated in the recess 35 provided in the first holding member 41, and the second holding member 51 is combined so as to cover the brush member 22, whereby the assembly work of the brush 21 is easily performed. be able to.
（４）並列するブラシ糸２３の並列方向Ｙにおける端部同士で保持糸２５が接合されることによって、ブラシ糸２３を編んだ保持糸２５がほどけにくくなる。これにより、ブラシ糸２３の脱落が抑制されるので、ブラシ糸２３を安定して保持することができる。また、ブラシ部材２２が環状をなすことによって、保持部２６の凹部３５への収容が容易になるとともに、回転軸１４の外周面１４ａの全周に亘ってブラシ糸２３を接触させることができる。 (4) When the holding yarns 25 are joined at the ends in the parallel direction Y of the brush yarns 23 arranged in parallel, the holding yarns 25 knitted with the brush yarns 23 are difficult to unwind. Thereby, since the drop-off of the brush thread 23 is suppressed, the brush thread 23 can be stably held. Further, since the brush member 22 has an annular shape, the holding portion 26 can be easily accommodated in the concave portion 35, and the brush yarn 23 can be brought into contact with the entire outer periphery 14 a of the rotating shaft 14.
（第２実施形態）
次に、ブラシの第２実施形態について、図を参照して説明する。なお、以下においては第１実施形態と異なる点を中心に説明を行い、両実施形態において同じ符号を付した部材は同様の構成を備えるので説明を省略する。
(Second Embodiment)
Next, a second embodiment of the brush will be described with reference to the drawings. In the following description, differences from the first embodiment will be mainly described, and the members denoted by the same reference numerals in both embodiments have the same configuration and will not be described.
図７（ａ）に示すように、第２実施形態においては、第１保持部材４１Ｂと第２保持部材５１Ｂとでブラシ部材２２を挟持することで、ブラシ２１Ｂが形成される。第１保持部材４１Ｂは、周方向に間隔を有して配置された複数の凸部４３と、周方向に並ぶ２つの凸部４３の間となる位置に形成された挿通部４４とを有している。 As shown in FIG. 7A, in the second embodiment, the brush 21B is formed by sandwiching the brush member 22 between the first holding member 41B and the second holding member 51B. The first holding member 41B has a plurality of convex portions 43 arranged at intervals in the circumferential direction, and an insertion portion 44 formed at a position between the two convex portions 43 arranged in the circumferential direction. ing.
凸部４３は、第１保持部材４１Ｂが保持体３１を構成するときに第２保持部材５１Ｂ側となる方向に突出している。挿通部４４は第１保持部材４１Ｂの内縁部４１ａに形成されている一方で、凸部４３は径方向において嵌合部４２と挿通部４４との間に配置されている。挿通部４４は、本実施形態のように第１保持部材４１Ｂの内縁部４１ａに設けた切り欠きであってもよいし、貫通孔または凹部であってもよい。 The convex portion 43 protrudes in the direction toward the second holding member 51B when the first holding member 41B constitutes the holding body 31. While the insertion part 44 is formed in the inner edge part 41a of the 1st holding member 41B, the convex part 43 is arrange | positioned between the fitting part 42 and the insertion part 44 in radial direction. The insertion portion 44 may be a notch provided in the inner edge portion 41a of the first holding member 41B as in the present embodiment, or may be a through hole or a recess.
図７（ｂ）に示すように、第２保持部材５１Ｂは、周方向に間隔を有して配置された複数の凸部５３と、周方向に並ぶ２つの凸部５３の間となる位置に形成された係止部５４とを有している。凸部５３及び係止部５４は、第２保持部材５１Ｂが保持体３１を構成するときに第１保持部材４１Ｂ側となる方向に突出している。 As shown in FIG. 7B, the second holding member 51B is located at a position between the plurality of convex portions 53 arranged at intervals in the circumferential direction and the two convex portions 53 arranged in the circumferential direction. And a locking portion 54 formed. The convex portion 53 and the locking portion 54 protrude in the direction toward the first holding member 41B when the second holding member 51B constitutes the holding body 31.
係止部５４は第２保持部材５１Ｂの内縁部５１ａに形成されている。係止部５４は、第２保持部材５１Ｂが保持体３１を構成するときに、先端が挿通部４４に挿通される。凸部５３は、径方向及び周方向において凸部４３と対応する位置に配置されており、第２保持部材５１Ｂが保持体３１を構成するときに、凸部５３と対向する。 The locking portion 54 is formed on the inner edge portion 51a of the second holding member 51B. When the second holding member 51 </ b> B constitutes the holding body 31, the locking portion 54 is inserted through the insertion portion 44 at the tip. The convex portion 53 is disposed at a position corresponding to the convex portion 43 in the radial direction and the circumferential direction, and faces the convex portion 53 when the second holding member 51 </ b> B constitutes the holding body 31.
本実施形態のような凸部４３，５３、挿通部４４及び係止部５４を備える保持部材４１Ｂ，５１Ｂは、プレス加工によって形成することができる。例えば、係止部５４は、第２保持部材５１Ｂを構成する板金の内縁部５１ａとなる部分に切り目を入れて折り曲げることによって形成することができる。また、凸部４３，５３は保持部材４１Ｂ，５１Ｂを構成する板金に絞り加工を施すことによって形成することができる。 The holding members 41B and 51B including the convex portions 43 and 53, the insertion portion 44, and the locking portion 54 as in the present embodiment can be formed by press working. For example, the locking portion 54 can be formed by making a cut at a portion that becomes the inner edge portion 51a of the sheet metal constituting the second holding member 51B and bending it. Moreover, the convex parts 43 and 53 can be formed by performing a drawing process to the sheet metal which comprises the holding members 41B and 51B.
図８に示すように、第１保持部材４１Ｂと第２保持部材５１Ｂとを組み合わせた場合に、凸部４３と凸部５３とは周方向における位置が重なるように配置されているとともに、凸部４３，５３と係止部５４とは周方向における位置が異なるように配置されている。 As shown in FIG. 8, when the first holding member 41 </ b> B and the second holding member 51 </ b> B are combined, the convex portion 43 and the convex portion 53 are arranged so that the positions in the circumferential direction overlap with each other, and the convex portion 43 and 53 and the latching | locking part 54 are arrange | positioned so that the position in the circumferential direction may differ.
図９に示すように、ブラシ部材２２は、保持部材４１Ｂ，５１Ｂによって挟持される場合に、保持部２６が径方向において凸部４３，５３と係止部５４との間に配置される。
次に、本実施形態のブラシ２１Ｂの作用を説明する。
As shown in FIG. 9, when the brush member 22 is clamped by the holding members 41B and 51B, the holding portion 26 is disposed between the convex portions 43 and 53 and the locking portion 54 in the radial direction.
Next, the effect | action of the brush 21B of this embodiment is demonstrated.
保持部材４１Ｂ，５１Ｂでブラシ部材２２を挟持するときには、ブラシ部材２２を第２保持部材５１Ｂに対してセットした上で、第１保持部材４１Ｂを第２保持部材５１Ｂに組み付けるのが好ましい。また、ブラシ部材２２を第２保持部材５１Ｂに対してセットするときには、径方向に間隔を有して配置される凸部５３と係止部５４との間に保持部２６を収容するとともに、周方向（束状体２８の並列方向）に並列する束状体２８と束状体２８との間に形成される隙間に係止部５４を挿入するとよい。 When holding the brush member 22 between the holding members 41B and 51B, it is preferable that the first holding member 41B is assembled to the second holding member 51B after the brush member 22 is set to the second holding member 51B. Further, when the brush member 22 is set with respect to the second holding member 51B, the holding portion 26 is accommodated between the convex portion 53 and the locking portion 54 that are arranged with a gap in the radial direction, and the circumferential portion The locking portion 54 may be inserted into a gap formed between the bundles 28 arranged in parallel in the direction (the parallel direction of the bundles 28).
すなわち、ブラシ部材２２を第２保持部材５１Ｂにセットするときには、第２保持部材５１Ｂの凸部５３で保持部２６の径方向における位置決めをすることができるとともに、係止部５４を並列する束状体２８の間に形成される隙間に挿入することでブラシ部材２２の周方向における位置決めをすることができる。 That is, when the brush member 22 is set on the second holding member 51B, the holding portion 26 can be positioned in the radial direction by the convex portion 53 of the second holding member 51B, and the locking portions 54 are arranged in parallel. The brush member 22 can be positioned in the circumferential direction by being inserted into a gap formed between the bodies 28.
また、ブラシ部材２２がセットされた第２保持部材５１Ｂに第１保持部材４１Ｂを組み合わせるときには、第２保持部材５１Ｂの係止部５４を第１保持部材４１Ｂの挿通部４４に挿通することによって、第１保持部材４１Ｂの周方向における位置決めを行うことができる。 Moreover, when combining the 1st holding member 41B with the 2nd holding member 51B to which the brush member 22 was set, by inserting the latching | locking part 54 of the 2nd holding member 51B in the insertion part 44 of the 1st holding member 41B, Positioning in the circumferential direction of the first holding member 41B can be performed.
ブラシ部材２２は、第１保持部材４１Ｂと第２保持部材５１Ｂとに挟持されると、保持部２６の径方向において外縁３３に向かう移動が凸部４３，５３によって規制されるとともに、径方向において内縁３２に向かう移動が係止部５４によって規制される。さらに、ブラシ部材２２は、係止部５４によって周方向における移動が規制されるので、ブラシ糸２３の回転軸１４に対する相対位置を一定に保つことができる。 When the brush member 22 is sandwiched between the first holding member 41B and the second holding member 51B, the movement toward the outer edge 33 in the radial direction of the holding portion 26 is restricted by the convex portions 43 and 53, and in the radial direction Movement toward the inner edge 32 is restricted by the locking portion 54. Furthermore, since the movement of the brush member 22 in the circumferential direction is restricted by the locking portion 54, the relative position of the brush thread 23 with respect to the rotating shaft 14 can be kept constant.
以上説明した第２実施形態によれば、上述した（１），（４）の効果に加えて、次のような効果を得ることができる。
（５）並列する束状体２８の間に形成される隙間に係止部３６を挿入することにより、ブラシ部材２２を安定して係止することができるとともに、束状体２８が並列する並列方向Ｙにおけるブラシ部材２２の移動を規制することができる。
According to the second embodiment described above, the following effects can be obtained in addition to the effects (1) and (4) described above.
(5) The brush member 22 can be stably locked by inserting the locking portion 36 into the gap formed between the bundles 28 arranged in parallel, and the parallel arrangement in which the bundles 28 are arranged in parallel. The movement of the brush member 22 in the direction Y can be restricted.
（６）ブラシ部材２２の保持部２６を係止する凸部４３，５３と係止部５４とは、周方向において交互に並ぶとともに、周方向において互いに間隔を有して配置されているので、ブラシ部材２２の径方向における長さの誤差を許容しつつ、ブラシ部材２２を安定して保持することができる。 (6) Since the convex portions 43 and 53 and the locking portions 54 that lock the holding portion 26 of the brush member 22 are alternately arranged in the circumferential direction and are arranged with a space therebetween in the circumferential direction, The brush member 22 can be stably held while allowing an error in the length of the brush member 22 in the radial direction.
（第３実施形態）
次に、ブラシの第３実施形態について、図を参照して説明する。なお、以下においては第１実施形態と異なる点を中心に説明を行い、両実施形態において同じ符号を付した部材は同様の構成を備えるので説明を省略する。
(Third embodiment)
Next, a third embodiment of the brush will be described with reference to the drawings. In the following description, differences from the first embodiment will be mainly described, and the members denoted by the same reference numerals in both embodiments have the same configuration and will not be described.
図１０（ａ）に示すように、第３実施形態のブラシ２１Ｃを構成する保持体３１は、第１保持部材４１Ｃと第２保持部材５１Ｃとを有している。第１保持部材４１Ｃと第２保持部材５１Ｃとは、ブラシ部材２２を挟持した状態で、周方向に間隔を有して配置される複数の固定部材６１（例えば、リベットなど）によって互いに固定される。 As shown in FIG. 10A, the holding body 31 constituting the brush 21C of the third embodiment has a first holding member 41C and a second holding member 51C. The first holding member 41 </ b> C and the second holding member 51 </ b> C are fixed to each other by a plurality of fixing members 61 (for example, rivets, etc.) arranged with a gap in the circumferential direction with the brush member 22 being sandwiched. .
第１保持部材４１Ｃは平面視円環状の本体部４５を備えている。本体部４５の内縁側の端部であって、第１保持部材４１Ｃの内縁部４１ａとなる位置には、保持体３１を構成するときに第２保持部材５１Ｃ側となる方向に突出する突縁部４６が形成されている。また、本体部４５の外縁側の端部であって、第１保持部材４１Ｃの外縁部となる位置には、突縁部４６と同じ方向に突出する突縁部４７が形成されている。なお、突縁部４７の突出長さは突縁部４６の突出長さよりも長い。 The first holding member 41 </ b> C includes an annular main body 45 in a plan view. A protruding edge that protrudes in the direction of the second holding member 51 </ b> C when the holding body 31 is formed, at an end on the inner edge side of the main body 45, at a position that becomes the inner edge 41 a of the first holding member 41 </ b> C. A portion 46 is formed. A protruding edge 47 that protrudes in the same direction as the protruding edge 46 is formed at the outer edge of the main body 45 at a position that becomes the outer edge of the first holding member 41C. In addition, the protruding length of the protruding portion 47 is longer than the protruding length of the protruding portion 46.
図１０（ｂ）に示すように、第２保持部材５１Ｃの内縁側には、保持体３１を構成するときに第１保持部材４１Ｃ側の反対側に向けて突出するように段差部５５が形成されている。また、段差部５５の内縁側の端部であって、第２保持部材５１Ｃの内縁部５１ａとなる位置には、保持体３１を構成するときに第１保持部材４１Ｃ側となる方向に突出する突縁部５６が形成されている。 As shown in FIG. 10B, a stepped portion 55 is formed on the inner edge side of the second holding member 51C so as to protrude toward the opposite side of the first holding member 41C when the holding body 31 is formed. Has been. Further, at the position on the inner edge side of the stepped portion 55 that is the inner edge portion 51a of the second holding member 51C, it protrudes in the direction toward the first holding member 41C when the holding body 31 is formed. A protruding edge portion 56 is formed.
図１１に示すように、保持体３１は、第１保持部材４１Ｃと第２保持部材５１Ｃとが組み合わされた場合に、第１保持部材４１Ｃと第２保持部材５１Ｃとの間にブラシ部材２２の保持部２６を収容可能な収容部３８を形成する。 As shown in FIG. 11, when the first holding member 41C and the second holding member 51C are combined, the holding body 31 includes the brush member 22 between the first holding member 41C and the second holding member 51C. An accommodating portion 38 that can accommodate the holding portion 26 is formed.
本実施形態において、収容部３８は、第１保持部材４１Ｃの本体部４５及び突縁部４６と、第２保持部材５１Ｃの段差部５５及び突縁部５６とによって囲み形成される。このとき、第１保持部材４１Ｃの突縁部４６と第２保持部材５１Ｃの突縁部５６とは、ブラシ部材２２の保持部２６を係止する係止部として機能する。そして、第１保持部材４１Ｃの突縁部４６と第２保持部材５１Ｃの突縁部５６との間には隙間が形成され、この隙間を通じてブラシ部材２２のブラシ糸２３が保持体３１の内縁３２から突出する。 In the present embodiment, the accommodating portion 38 is surrounded by the main body portion 45 and the protruding edge portion 46 of the first holding member 41C, and the step portion 55 and the protruding edge portion 56 of the second holding member 51C. At this time, the protruding edge portion 46 of the first holding member 41C and the protruding edge portion 56 of the second holding member 51C function as a locking portion that locks the holding portion 26 of the brush member 22. A gap is formed between the protruding edge portion 46 of the first holding member 41 </ b> C and the protruding edge portion 56 of the second holding member 51 </ b> C, and the brush thread 23 of the brush member 22 passes through the gap to the inner edge 32 of the holding body 31. Protrude from.
次に、本実施形態のブラシ２１Ｃの作用を説明する。
保持部材４１Ｃ，５１Ｃでブラシ部材２２を挟持するときには、ブラシ部材２２を第１保持部材４１Ｃまたは第２保持部材５１Ｃに対してセットした上で、第１保持部材４１Ｃと第２保持部材５１Ｃとを固定するのが好ましい。なお、ブラシ部材２２を第１保持部材４１Ｃにセットするときには、第１保持部材４１Ｃの突縁部４６で保持部２６の径方向における位置決めをすることができる。また、ブラシ部材２２を第２保持部材５１Ｃにセットするときには、第２保持部材５１Ｃの突縁部５６で保持部２６の径方向における位置決めをすることができる。
Next, the operation of the brush 21C of this embodiment will be described.
When holding the brush member 22 between the holding members 41C and 51C, the brush member 22 is set with respect to the first holding member 41C or the second holding member 51C, and then the first holding member 41C and the second holding member 51C are connected. It is preferable to fix. When the brush member 22 is set on the first holding member 41C, the holding portion 26 can be positioned in the radial direction by the protruding edge portion 46 of the first holding member 41C. Further, when the brush member 22 is set on the second holding member 51C, the holding portion 26 can be positioned in the radial direction by the protruding edge portion 56 of the second holding member 51C.
ブラシ部材２２の保持部２６は、第１保持部材４１Ｃと第２保持部材５１Ｃとを固定することによって収容部３８に収容されるので、保持部２６を収容部３８に収容する作業を別途行う必要がない。そして、収容部３８は、第１保持部材４１Ｃと第２保持部材５１Ｃとによって囲み形成されるので、１つの部材で収容部を形成する場合と比較して、保持部材４１Ｃ，５１Ｃの形状を単純化することができる。 Since the holding part 26 of the brush member 22 is accommodated in the accommodating part 38 by fixing the first holding member 41C and the second holding member 51C, it is necessary to separately perform an operation of accommodating the holding part 26 in the accommodating part 38. There is no. And since the accommodating part 38 is enclosed by the 1st holding member 41C and the 2nd holding member 51C, compared with the case where an accommodating part is formed with one member, the shape of the holding members 41C and 51C is simple. Can be
以上説明した第３実施形態のブラシ２１Ｃによれば、上述した（１），（４）の効果に加えて、次のような効果を得ることができる。
（７）第１保持部材４１Ｃと第２保持部材５１Ｃとの間に形成される収容部３８に保持部２６を収容することによって、保持体３１がブラシ部材２２を安定して保持することができる。
According to the brush 21C of the third embodiment described above, the following effects can be obtained in addition to the effects (1) and (4) described above.
(7) By holding the holding part 26 in the holding part 38 formed between the first holding member 41C and the second holding member 51C, the holding body 31 can stably hold the brush member 22. .
（変更例）
上記各実施形態は、次のように変更して具体化することも可能である。
・図１２に示す第１変更例のように、第１実施形態の第１保持部材４１に設けられる凹部３５の内縁側の面を外縁側に向けて深くなるように傾斜する傾斜面として、この傾斜面を係止部３６Ａとしてもよい。この構成によれば、凹部３５の内縁側の側面が内底面に対して直交する場合よりも保持部２６の大きさの誤差が許容されるので、保持部２６の凹部３５への入りにくさが解消されるとともに、保持部２６を凹部３５に収容する作業が容易になる。
(Example of change)
Each of the above embodiments can be modified and embodied as follows.
As in the first modified example shown in FIG. 12, the inner edge side surface of the recess 35 provided in the first holding member 41 of the first embodiment is an inclined surface that is inclined deeper toward the outer edge side. The inclined surface may be the locking portion 36A. According to this configuration, an error in the size of the holding portion 26 is allowed as compared with the case where the side surface on the inner edge side of the concave portion 35 is orthogonal to the inner bottom surface. This eliminates the problem and facilitates the operation of housing the holding portion 26 in the recess 35.
・第１変更例に例示するように、ブラシ部材２２の保持部２６を収容する凹部３５の形状は任意に変更することができる。また、保持部２６を収容するための凹部は、第２保持部材５１側に設けてもよいし、第１保持部材４１及び第２保持部材５１の両方に設けてもよい。 -As illustrated in a 1st modification, the shape of the recessed part 35 which accommodates the holding | maintenance part 26 of the brush member 22 can be changed arbitrarily. Further, the recess for accommodating the holding portion 26 may be provided on the second holding member 51 side, or may be provided on both the first holding member 41 and the second holding member 51.
・図１３に示す第２変更例のように、第１実施形態の保持体３１を構成する保持部材４１，５１のうち少なくとも一方（第２変更例においては第１保持部材４１）に、保持部材４１，５１のうちの他方（第２変更例においては第２保持部材５１）側に向けて突出する係止部４８を設けてもよい。係止部４８は、束状体２８と束状体２８との間に形成される隙間に挿通されるのが好ましいため、凹部３５よりも内縁３２寄りに設けるのがよい。係止部４８の長さは任意に変更することができるが、係止部４８が保持部材４１，５１のうちの他方（第２変更例においては第２保持部材５１）に設けられた係止穴５７に挿入されるようにすれば、ブラシ部材２２をより確実に係止することができる。 As in the second modification example shown in FIG. 13, at least one of the holding members 41 and 51 constituting the holding body 31 of the first embodiment (first holding member 41 in the second modification example) is provided with a holding member. You may provide the latching | locking part 48 which protrudes toward the other (2nd holding member 51 in a 2nd modification) side among 41 and 51. As shown in FIG. The locking portion 48 is preferably inserted closer to the inner edge 32 than the concave portion 35 because it is preferably inserted through a gap formed between the bundle-like body 28 and the bundle-like body 28. The length of the locking portion 48 can be arbitrarily changed, but the locking portion 48 is provided on the other of the holding members 41 and 51 (second holding member 51 in the second modified example). If it is made to insert in the hole 57, the brush member 22 can be more reliably latched.
・第２変更例に例示するように、ブラシ部材２２の保持部２６を係止する係止部をいずれの部材から形成するかは、任意に変更することができる。例えば、係止部は、第２保持部材５１側に設けてもよいし、第１保持部材４１及び第２保持部材５１の両方に設けてもよい。 -As illustrated in a 2nd modification, it can change arbitrarily from which member the latching | locking part which latches the holding | maintenance part 26 of the brush member 22 is formed. For example, the locking portion may be provided on the second holding member 51 side, or may be provided on both the first holding member 41 and the second holding member 51.
・図１４に示す第３変更例のように、第１実施形態の保持体３１を構成する第１保持部材４１に凹部３５を設けず、第１保持部材４１と第２保持部材５１とを固定するためのリベットなどの固定部材６２をブラシ糸２３または束状体２８の間に挿通することによって、係止部として機能させてもよい。この構成によれば、第１保持部材４１及び第２保持部材５１の構成を簡素化することができる。 As in the third modification shown in FIG. 14, the first holding member 41 and the second holding member 51 are fixed without providing the concave portion 35 in the first holding member 41 that constitutes the holding body 31 of the first embodiment. For example, a fixing member 62 such as a rivet may be inserted between the brush yarn 23 or the bundle 28 to function as a locking portion. According to this configuration, the configuration of the first holding member 41 and the second holding member 51 can be simplified.
・第３変更例に例示するように、ブラシ部材２２の保持部２６を係止する係止部は、ブラシ部材２２を挟持する保持部材とは別体に設けてもよい。ただし、第３変形例のような構成においては、保持部材４１，５１でブラシ部材２２を挟持して保持部２６付近が視認できない状態で係止部（固定部材６２）をブラシ部２４に挿通することになる。そのため、固定部材６２を細いピン状にして、束状体２８と束状体２８との隙間に限らず、ブラシ部２４の任意の位置に係止部を挿通する構成にしてもよい。 As illustrated in the third modification, the locking portion that locks the holding portion 26 of the brush member 22 may be provided separately from the holding member that holds the brush member 22. However, in the configuration as in the third modified example, the locking member (fixing member 62) is inserted into the brush portion 24 in a state where the holding member 41, 51 holds the brush member 22 and the vicinity of the holding portion 26 is not visible. It will be. Therefore, the fixing member 62 may be formed into a thin pin shape, and the engaging portion may be inserted into an arbitrary position of the brush portion 24 without being limited to the gap between the bundle body 28 and the bundle body 28.
・第２実施形態において、保持体３１が凸部４３，５３を備えなくてもよい。あるいは、保持体３１が、凸部４３，５３に替えて係止部５４と同様の形状の係止部を備えてもよい。特にブラシ部材２２が環状をなす場合には、ブラシ部材２２が保持体３１の外縁３３側に大きく移動することはないため、凸部４３，５３がなくてもブラシ部材２２の径方向における移動をある程度規制することができる。したがって、第１実施形態の位置決め部３７や第２実施形態の凸部４３，５３のように、保持部２６よりも外縁側でブラシ部材２２を係止する係止部は省略することができる。 -In 2nd Embodiment, the holding body 31 does not need to be provided with the convex parts 43 and 53. FIG. Alternatively, the holding body 31 may include a locking portion having the same shape as the locking portion 54 instead of the convex portions 43 and 53. In particular, when the brush member 22 has an annular shape, the brush member 22 does not move greatly toward the outer edge 33 of the holding body 31, so that the brush member 22 can move in the radial direction without the convex portions 43 and 53. It can be regulated to some extent. Therefore, like the positioning portion 37 of the first embodiment and the convex portions 43 and 53 of the second embodiment, a locking portion that locks the brush member 22 on the outer edge side of the holding portion 26 can be omitted.
・第２実施形態において、保持体３１が凸部４３，５３のいずれか一方を備えなくてもよい。また、この場合には、保持部材４１Ｂ，５１Ｂのいずれに凸部を設けてもよい。ただし、保持部材４１Ｂ，５１Ｂがそれぞれ凸部を備えておけば、ブラシ部材２２を保持部材４１Ｂ，５１Ｂのいずれに対しても位置決めすることができるので、好ましい。 -In 2nd Embodiment, the holding body 31 does not need to be provided with either one of the convex parts 43 and 53. FIG. In this case, a convex portion may be provided on either of the holding members 41B and 51B. However, it is preferable that the holding members 41B and 51B have convex portions, because the brush member 22 can be positioned with respect to both the holding members 41B and 51B.
・第２実施形態の保持体３１において、凸部４３，５３と係止部５４とは周方向における位置が異なるように配置されているが、周方向において重なる位置に配置されてもよい。ただし、凸部５３及び係止部５４をプレス加工によって形成する場合などには、凸部５３と係止部５４とが周方向にずれているほうが圧縮に伴う変形の影響を抑制できるので、好ましい。 -In the holding body 31 of 2nd Embodiment, although the convex parts 43 and 53 and the latching | locking part 54 are arrange | positioned so that the position in the circumferential direction may differ, you may arrange | position in the position which overlaps in the circumferential direction. However, when forming the convex part 53 and the latching | locking part 54 by press work etc., since the direction where the convex part 53 and the latching | locking part 54 have shifted | deviated to the circumferential direction can suppress the influence of the deformation | transformation accompanying compression, it is preferable. .
・第２実施形態の保持体３１において、凸部４３，５３は周方向における位置が重なるように配置されているが、凸部４３と凸部５３とが周方向において異なる位置にあってもよい。ただし、凸部４３，５３の周方向における位置を重なるようにしておけば、一方の凸部のみでブラシ部材２２を係止する場合よりも突出長さを半減することができるので、特にプレス加工によって凸部を形成する場合などには、好ましい。 -In the holding body 31 of 2nd Embodiment, although the convex parts 43 and 53 are arrange | positioned so that the position in the circumferential direction may overlap, the convex part 43 and the convex part 53 may exist in a different position in the circumferential direction. . However, if the positions of the convex portions 43 and 53 in the circumferential direction are overlapped, the protruding length can be halved as compared with the case where the brush member 22 is locked only by one convex portion. This is preferable when a convex portion is formed.
・ブラシ部材２２は、上記各実施形態の構成に限らず、ブラシ部２４と保持部２６を備えるものであればよい。例えば、タテ糸とヨコ糸とを織って形成する織物において、タテ糸及びヨコ糸のうちいずれか一方をブラシ糸とし、タテ糸及びヨコ糸のうち他方を保持糸とすることによって、ブラシ部材２２を構成してもよい。ただし、織加工によってブラシ糸を保持する場合には、保持糸でブラシ糸を編む場合と比較して、ブラシ糸を保持する力が弱いため、保持糸を溶融してブラシ糸を固定したり、接着剤でブラシ糸と保持糸とを固定したりする必要がある。 -The brush member 22 should just be provided with the brush part 24 and the holding | maintenance part 26 not only in the structure of said each embodiment. For example, in a woven fabric formed by weaving warp and weft yarns, one of the warp and weft yarns is a brush yarn, and the other of the warp and weft yarns is a holding yarn, whereby the brush member 22 May be configured. However, when holding the brush yarn by weaving, the force to hold the brush yarn is weak compared to knitting the brush yarn with the holding yarn, so the holding yarn can be melted to fix the brush yarn, It is necessary to fix the brush thread and the holding thread with an adhesive.
・保持部２６の太さは、必ずしもブラシ部２４より太くなくてもよいが、保持部２６がブラシ部２４より太い場合には、保持部２６を収容する収容部（凹部）を設けるのが好ましい。 -Although the thickness of the holding part 26 does not necessarily need to be thicker than the brush part 24, when the holding part 26 is thicker than the brush part 24, it is preferable to provide the accommodating part (recessed part) which accommodates the holding part 26. .
・ブラシ糸２３は、必ずしも保持体３１の内縁３２の全周に亘って配置されなくてもよい。例えば、複数のブラシ糸２３または複数の束状体２８からなるブラシ糸群が、保持体３１の内縁３２に沿って所定の間隔をあけて配置されるようにしてもよい。この構成によれば、ブラシ糸２３の数を削減することができるとともに、保持部２６を係止する係止部の周方向における長さを長くすることが可能になる。 The brush thread 23 does not necessarily have to be arranged over the entire circumference of the inner edge 32 of the holding body 31. For example, a group of brush threads composed of a plurality of brush threads 23 or a plurality of bundles 28 may be arranged along the inner edge 32 of the holding body 31 with a predetermined interval. According to this configuration, the number of brush threads 23 can be reduced, and the length in the circumferential direction of the locking portion that locks the holding portion 26 can be increased.
ここで、第２実施形態に示す凸部４３，５３及び係止部５４は、いずれも板金の平面部分から突出する点は共通しているので、いずれも位置決め部または係止部として機能させることが可能である。ただし、凸部４３，５３及び係止部５４をプレス加工によって形成する場合などには、板金を折り曲げて形成する係止部５４は、突出させる長さを任意に変更することができる一方、板金の平面部分を圧縮して形成する凸部４３，５３は、突出する面積を任意に広くすることができるという違いがある。 Here, since the convex parts 43 and 53 and the latching | locking part 54 which are shown in 2nd Embodiment all protrude in the point which protrudes from the plane part of sheet metal, all make it function as a positioning part or a latching | locking part. Is possible. However, when the convex portions 43 and 53 and the locking portion 54 are formed by press working, the locking portion 54 formed by bending the sheet metal can arbitrarily change the protruding length, The protrusions 43 and 53 that are formed by compressing the flat surface portion have a difference that the protruding area can be arbitrarily widened.
そして、周方向における長さが長い係止部（例えば、凸部からなる係止部）によって保持部２６を係止する構成を採用する場合には、ブラシ部材２２の周方向における位置決めをより容易に行うことができる。ただし、ブラシ糸２３または束状体２８の周方向における密度が高い方が静電気を除去する効果が高いので、ブラシ糸２３はできるだけ回転軸１４の全周にわたって接触するようにするのが好ましい。 And when employ | adopting the structure which latches the holding | maintenance part 26 by the latching | locking part (for example, latching part which consists of convex parts) with the long length in the circumferential direction, positioning in the circumferential direction of the brush member 22 is easier. Can be done. However, since the higher the density in the circumferential direction of the brush thread 23 or the bundle 28, the higher the effect of removing static electricity, the brush thread 23 is preferably in contact with the entire circumference of the rotating shaft 14 as much as possible.
・第１実施形態における凹部３５の大きさや、第２実施形態における凸部４３，５３と係止部５４との径方向における距離、または第３実施形態における収容部３８の大きさなどは、ブラシ部材２２の保持部２６の大きさに応じて任意に変更することができる。 The size of the concave portion 35 in the first embodiment, the radial distance between the convex portions 43 and 53 and the locking portion 54 in the second embodiment, the size of the accommodating portion 38 in the third embodiment, etc. It can be arbitrarily changed according to the size of the holding portion 26 of the member 22.
・ブラシ部材２２は、束状体２８の並び方向における端部同士で保持糸２５を溶着しなくてもよい。この構成によれば、ブラシ部材２２を環状の保持体３１にセットするときに、ブラシ部材２２の長さ（方向Ｙにおける長さ）の誤差を許容しやすい。 The brush member 22 does not need to weld the holding yarn 25 at the ends in the arrangement direction of the bundles 28. According to this configuration, when the brush member 22 is set on the annular holding body 31, it is easy to allow an error in the length of the brush member 22 (length in the direction Y).
・ブラシが除電を行う回転軸１４は本実施形態に例示するモータ１７が備えるものに限らず、任意の構成のモータの回転軸に対して適用することが可能である。 The rotating shaft 14 from which the brush performs charge removal is not limited to the one provided in the motor 17 exemplified in the present embodiment, and can be applied to the rotating shaft of a motor having an arbitrary configuration.
１４…回転軸、１７…モータ、２１，２１Ｂ，２１Ｃ…ブラシ、２２…ブラシ部材、２３…ブラシ糸、２５…保持糸、２６…保持部、２８…束状体、３１…保持体、３５…収容部を形成する凹部、３６，３６Ａ，４８，５４…係止部、３８…収容部、４６…係止部としての突縁部、４１，４１Ｂ，４１Ｃ…第１保持部材、５１，５１Ｂ，５１Ｃ…第２保持部材、５６…係止部としての突縁部、６２…係止部としての固定部材。 DESCRIPTION OF SYMBOLS 14 ... Rotating shaft, 17 ... Motor, 21, 21B, 21C ... Brush, 22 ... Brush member, 23 ... Brush thread, 25 ... Holding thread, 26 ... Holding part, 28 ... Bundled body, 31 ... Holding body, 35 ... Recessed part forming the accommodating part, 36, 36A, 48, 54 ... engaging part, 38 ... accommodating part, 46 ... projecting edge part as engaging part, 41, 41B, 41C ... first holding member, 51, 51B, 51C ... 2nd holding member, 56 ... Projection edge part as a locking part, 62 ... Fixing member as a locking part.
Claims (5)
複数のブラシ糸を保持する保持糸が形成する保持部を有するブラシ部材と、
前記保持部を係止可能な係止部を有して、前記ブラシ部材を保持する保持体と、
を備えることを特徴とするブラシ。 A conductive brush used in contact with the rotating shaft of a motor,
A brush member having a holding portion formed by a holding yarn for holding a plurality of brush yarns;
A holding body for holding the brush member having a locking portion capable of locking the holding portion;
A brush characterized by comprising.
前記係止部は、並列する前記束状体の間に形成される隙間に挿入されることを特徴とする請求項１から請求項３のうちいずれか一項に記載のブラシ。 The brush member has a structure in which a bundle of bundles of a plurality of the brush yarns are arranged in parallel,
The brush according to any one of claims 1 to 3, wherein the locking portion is inserted into a gap formed between the bundles arranged in parallel.
前記ブラシ部材は、並列する前記ブラシ糸の並列方向における端部同士で前記保持糸が接合されることにより、環状に形成されることを特徴とする請求項１から請求項４のうちいずれか一項に記載のブラシ。 The holding yarn holds the brush yarn by knitting a plurality of the brush yarns arranged in parallel,
The said brush member is formed in cyclic | annular form, when the said holding thread | yarn is joined by the edge parts in the parallel direction of the said brush thread | yarn arranged in parallel. The brush according to item.
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| JP2013236129A JP6262499B2 (en) | 2013-11-14 | 2013-11-14 | brush |
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Cited By (7)
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| JP2017165520A (en) * | 2016-03-15 | 2017-09-21 | 株式会社日立製作所 | Passenger conveyor |
| WO2020194191A1 (en) * | 2019-03-25 | 2020-10-01 | Troy Lance Timm | Grounding device |
| IT202000007054A1 (en) * | 2020-04-03 | 2021-10-03 | Skf Ab | Combined Insulator and Conductor Assembly for Bearings with Adjustable Conductor |
| US11454285B2 (en) | 2020-05-25 | 2022-09-27 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with clip-mounted conductor |
| US11454284B2 (en) | 2020-04-03 | 2022-09-27 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with encased insulator |
| US11486445B2 (en) | 2020-04-03 | 2022-11-01 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with fixed conductor |
| US11549556B2 (en) | 2020-05-25 | 2023-01-10 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with prong-locked conductor |
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| US7136271B2 (en) * | 2003-03-17 | 2006-11-14 | Illinois Tool Works Inc | Static charge neutralizing assembly for use on rollers and shafts |
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| JPH08290630A (en) * | 1995-02-22 | 1996-11-05 | Eastman Kodak Co | Static erasing member for image device |
| JPH09148089A (en) * | 1995-11-22 | 1997-06-06 | C-Kou:Kk | Static eliminating brush and manufacture of it |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017165520A (en) * | 2016-03-15 | 2017-09-21 | 株式会社日立製作所 | Passenger conveyor |
| CN107188014A (en) * | 2016-03-15 | 2017-09-22 | 株式会社日立制作所 | Apparatus of passenger conveyor |
| WO2020194191A1 (en) * | 2019-03-25 | 2020-10-01 | Troy Lance Timm | Grounding device |
| IT202000007054A1 (en) * | 2020-04-03 | 2021-10-03 | Skf Ab | Combined Insulator and Conductor Assembly for Bearings with Adjustable Conductor |
| US11454284B2 (en) | 2020-04-03 | 2022-09-27 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with encased insulator |
| US11486445B2 (en) | 2020-04-03 | 2022-11-01 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with fixed conductor |
| US11512740B2 (en) | 2020-04-03 | 2022-11-29 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with adjustable conductor |
| US11454285B2 (en) | 2020-05-25 | 2022-09-27 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with clip-mounted conductor |
| US11549556B2 (en) | 2020-05-25 | 2023-01-10 | Aktiebolaget Skf | Combined insulator and conductor assembly for bearings with prong-locked conductor |
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| JP6262499B2 (en) | 2018-01-17 |
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