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JP6821774B2 - Air compressor motor coupling positioning structure - Google Patents
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JP6821774B2 - Air compressor motor coupling positioning structure - Google Patents

Air compressor motor coupling positioning structure Download PDF

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JP6821774B2
JP6821774B2 JP2019224962A JP2019224962A JP6821774B2 JP 6821774 B2 JP6821774 B2 JP 6821774B2 JP 2019224962 A JP2019224962 A JP 2019224962A JP 2019224962 A JP2019224962 A JP 2019224962A JP 6821774 B2 JP6821774 B2 JP 6821774B2
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motor
substrate
positioning
air compressor
housing
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JP2020097936A (en
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周　文三
文三 周
承賢 周
承賢 周
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/14—Provisions for readily assembling or disassembling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

本発明は、空気圧縮機のモータ結合位置決め構造に関し、特に、ねじを使用しなくても基板上にモータを確実に固定し得る、空気圧縮機のモータ結合位置決め構造に関する。 The present invention relates to a motor-coupled positioning structure of an air compressor, and more particularly to a motor-coupled positioning structure of an air compressor that can securely fix a motor on a substrate without using screws.

図７及び図８は、従来の車載用空気圧縮機１を示す。空気圧縮機１は、ベース１１と、ベース１１上に結合されたシリンダー１２と、ベース１１上に取り付けられたモータ１３と、モータ１３によりシリンダー１２内で往復運動されるピストン本体１４と、を含む。モータ１３によりピストン本体１４をシリンダー１２内で往復運動させ、気体の吸入、圧縮及び加圧された気体の排出を行う。 7 and 8 show a conventional in-vehicle air compressor 1. The air compressor 1 includes a base 11, a cylinder 12 coupled on the base 11, a motor 13 mounted on the base 11, and a piston body 14 reciprocated in the cylinder 12 by the motor 13. .. The piston body 14 is reciprocated in the cylinder 12 by the motor 13 to suck gas, compress the gas, and discharge the pressurized gas.

一般に、従来の車載用空気圧縮機１のモータ１３の多くは、ねじ１５によりベース１１上に螺設され、空気圧縮機１が長期間駆動されると、ねじ１５が容易に外れたり緩んだりして使用寿命が短くなることがあった。 In general, most of the motors 13 of the conventional in-vehicle air compressor 1 are screwed onto the base 11 by screws 15, and when the air compressor 1 is driven for a long period of time, the screws 15 are easily dislodged or loosened. In some cases, the service life was shortened.

図９及び図１０に示すように、従来の車載用空気圧縮機１はシリンダー１２が長めに設計されていたため、モータ１３が空間による制限を受けてベース１１上にスムーズに結合させることができなかった。即ち、ねじ１５を利用してモータ１３をベース１１上にスムーズに螺設することができなかった。そのため、本発明者は、従来の空気圧縮機のモータ結合位置決め構造の欠点に鑑み、鋭意研究を重ねて本発明を完成したものである。 As shown in FIGS. 9 and 10, since the cylinder 12 of the conventional in-vehicle air compressor 1 is designed to be long, the motor 13 cannot be smoothly coupled to the base 11 due to space limitation. It was. That is, the motor 13 could not be smoothly screwed onto the base 11 by using the screw 15. Therefore, the present inventor has completed the present invention by repeating diligent research in view of the drawbacks of the motor coupling positioning structure of the conventional air compressor.

本発明は空気圧縮機のモータ結合位置決め構造を提供し、モータの複数の貫通孔を、基板上に設けられた複数のピン上に対応して係合させると、モータの前端面の内軸受座が基板上の第１の位置決め孔内に収容され、モータのハウジングの外周縁が、基板上の２つの弧形位置決めブロックにより取り囲まれて固定されると、モータに嵌設された磁気コイルの一端が弧形位置決めブロックの頂端面に密着され、基板に延設された長板上の位置決めフックがモータのハウジング上に係合されるため、ねじを使用しなくても、基板上にモータを確実に固定することができる。 The present invention provides a motor coupling positioning structure for an air compressor, and when a plurality of through holes of the motor are engaged corresponding to a plurality of pins provided on a substrate, an inner bearing seat on the front end surface of the motor is provided. Is housed in a first positioning hole on the substrate, and when the outer peripheral edge of the motor housing is surrounded and fixed by two arc-shaped positioning blocks on the substrate, one end of a magnetic coil fitted in the motor. Is in close contact with the top end surface of the arc-shaped positioning block, and the positioning hook on the long plate extending to the board is engaged on the housing of the motor, so that the motor can be secured on the board without using screws. Can be fixed to.

本発明の一実施形態に係る空気圧縮機を示す斜視図である。It is a perspective view which shows the air compressor which concerns on one Embodiment of this invention. 本発明の一実施形態に係る空気圧縮機を示す分解斜視図である。It is an exploded perspective view which shows the air compressor which concerns on one Embodiment of this invention. 本発明の一実施形態に係るモータを示す斜視図である。It is a perspective view which shows the motor which concerns on one Embodiment of this invention. 本発明の一実施形態に係るモータと基板とを組立てたときの状態の断面図である。It is sectional drawing of the state when the motor and the substrate which concerns on one Embodiment of this invention are assembled. 小歯車の歯先円直径がモータの内軸受座の外径より大きい状態を示す断面図である。It is sectional drawing which shows the state which the tooth tip circle diameter of a small gear is larger than the outer diameter of the inner bearing seat of a motor. 本発明の他の実施形態に係る空気圧縮機を示す斜視図である。It is a perspective view which shows the air compressor which concerns on other embodiment of this invention. 従来の空気圧縮機のモータがねじによりベース上に螺設された状態を示す斜視図である。It is a perspective view which shows the state which the motor of the conventional air compressor is screwed on the base by a screw. 図７の平面図である。FIG. 7 is a plan view of FIG. 従来の空気圧縮機のモータが空間により制限を受けるため、ねじによりベース上にスムーズに螺設することができない状態を示す斜視図である。It is a perspective view which shows the state that the motor of a conventional air compressor cannot be smoothly screwed on a base by a screw because it is limited by space. 図９の平面図である。FIG. 9 is a plan view of FIG.

図１〜図３を参照する。図１〜図３に示すように、本発明の一実施形態に係る空気圧縮機のモータ結合位置決め構造は、空気圧縮機２を含む。空気圧縮機２は、基板３と、基板３上に結合されたシリンダー４と、基板３上に取り付けられたモータ７と、モータ７によりシリンダー４内で往復運動するピストン本体５と、を含む。 See FIGS. 1 to 3. As shown in FIGS. 1 to 3, the motor coupling positioning structure of the air compressor according to the embodiment of the present invention includes the air compressor 2. The air compressor 2 includes a substrate 3, a cylinder 4 coupled on the substrate 3, a motor 7 mounted on the substrate 3, and a piston body 5 reciprocating in the cylinder 4 by the motor 7.

基板３は、複数の位置決め孔を有する。複数の位置決め孔は、第１の位置決め孔３１及び第２の位置決め孔３２を含む。第１の位置決め孔３１には、モータ７の芯端に設けられた小歯車６１が挿入されるとともに、モータ７の内軸受座７１が収容される。小歯車６１の歯先円直径Ａは、内軸受座７１の外径Ｂより小さい。第２の位置決め孔３２内には、軸受３７が取り付けられる。前述したモータ７のハウジングの周面には、金属材料からなる磁気コイル７２が嵌設され、磁気コイル７２が導磁作用を有するため、仕事を行っているモータ７の効率を高めることができる。 The substrate 3 has a plurality of positioning holes. The plurality of positioning holes include a first positioning hole 31 and a second positioning hole 32. A small gear 61 provided at the core end of the motor 7 is inserted into the first positioning hole 31, and an inner bearing seat 71 of the motor 7 is accommodated. The tooth tip circle diameter A of the small gear 61 is smaller than the outer diameter B of the inner bearing seat 71. A bearing 37 is mounted in the second positioning hole 32. Since the magnetic coil 72 made of a metal material is fitted on the peripheral surface of the housing of the motor 7 described above and the magnetic coil 72 has a magnetic guiding action, the efficiency of the motor 7 performing work can be improved.

シリンダー４は、基板３上に一体結合されるか接続技術を利用して基板３に結合され、シリンダー４には、空気貯蔵ユニット４１が連通する。空気貯蔵ユニット４１は、排気マニホールド及び圧力計４２を有する。 The cylinder 4 is integrally coupled to the substrate 3 or is coupled to the substrate 3 using a connection technique, and the air storage unit 41 communicates with the cylinder 4. The air storage unit 41 has an exhaust manifold and a pressure gauge 42.

本実施形態の小歯車６１の歯先円直径Ａは、内軸受座７１の外径Ｂより大きくてもよい（図５を参照する）。 The tooth tip circle diameter A of the small gear 61 of the present embodiment may be larger than the outer diameter B of the inner bearing seat 71 (see FIG. 5).

伝動機構６は、カウンターウェイトブロックを有する大歯車６２を含む。前述した大歯車６２は、前述した小歯車６１と噛合し得る。大歯車６２は、軸棒を介して前述した軸受３７に接続される（従来技術の図面では図示されていない）。伝動機構６は、前述したシリンダー４内でピストン本体５を往復させて圧縮動作を行って圧縮空気を発生させる。 The transmission mechanism 6 includes a large gear 62 having a counterweight block. The above-mentioned large gear 62 can mesh with the above-mentioned small gear 61. The large gear 62 is connected to the bearing 37 described above via a shaft rod (not shown in the drawings of the prior art). The transmission mechanism 6 reciprocates the piston body 5 in the cylinder 4 described above to perform a compression operation to generate compressed air.

図２〜図４を参照する。図２〜図４に示すように、本実施形態において、モータ７のハウジングの周面上には、互いに対称な２つの対流孔７６が完全に貫通して形成され、対流孔７６によりモータ７のハウジング内部と、モータ７のハウジング外部とに気流を流通させ、小歯車６１が一端に設けられたモータ７の前端面７０には、内軸受座７１を取り囲むように複数の貫通孔７４，７５が形成され、基板３の後方には、互いに対称な２つの長板３３が延設されている。２つの長板３３上には、位置決めフック３３１がそれぞれ設けられる。２つの対称な長板３３の内側縁には、互いに対称な２つの弧形位置決めブロック３４が設けられ、基板３の後方の第１の位置決め孔３１の外周には、貫通孔７４，７５に対応した形状を有する複数のピン３５，３６が突設されている（図２を参照する）。モータ７を基板３に位置決めする際、モータ７の前端面７０の複数の貫通孔７４，７５を、基板３上に設けられた複数のピン３５，３６に対応して係合させ、モータ７の前端面７０の内軸受座７１が基板３上の第１の位置決め孔３１内に収容され、モータ７のハウジングの外周縁が、基板３上の２つの弧形位置決めブロック３４により取り囲まれて固定されると、モータ７に嵌設された磁気コイル７２の一端が２つの弧形位置決めブロック３４の頂端面３４１に密着され、基板３に延設された長板３３上の位置決めフック３３１がモータ７のハウジングに係合されるため、ねじを使用しなくても、基板３上にモータ７を確実に固定することができる。 Refer to FIGS. 2 to 4. As shown in FIGS. 2 to 4, in the present embodiment, two convection holes 76 symmetrical to each other are completely formed through the peripheral surface of the housing of the motor 7, and the convection holes 76 form the motor 7. A plurality of through holes 74 and 75 are provided on the front end surface 70 of the motor 7 provided with a small gear 61 at one end so as to surround the inner bearing seat 71 so that airflow is circulated inside the housing and outside the housing of the motor 7. Two long plates 33, which are formed and are symmetrical to each other, extend behind the substrate 3. Positioning hooks 331 are provided on the two long plates 33, respectively. Two arc-shaped positioning blocks 34 symmetrical to each other are provided on the inner edges of the two symmetrical elongated plates 33, and the outer circumferences of the first positioning holes 31 behind the substrate 3 correspond to the through holes 74 and 75. A plurality of pins 35, 36 having a symmetrical shape are provided so as to project (see FIG. 2). When positioning the motor 7 on the substrate 3, a plurality of through holes 74, 75 of the front end surface 70 of the motor 7 are engaged corresponding to a plurality of pins 35, 36 provided on the substrate 3, and the motor 7 is engaged. The inner bearing seat 71 of the front end surface 70 is housed in the first positioning hole 31 on the substrate 3, and the outer peripheral edge of the housing of the motor 7 is surrounded and fixed by two arc-shaped positioning blocks 34 on the substrate 3. Then, one end of the magnetic coil 72 fitted in the motor 7 is brought into close contact with the top end surfaces 341 of the two arc-shaped positioning blocks 34, and the positioning hook 331 on the long plate 33 extending to the substrate 3 is attached to the motor 7. Since it is engaged with the housing, the motor 7 can be securely fixed on the substrate 3 without using screws.

図１及び図４を参照する。図１及び図４に示すように、前述した基板３から延びた２つの長板３３上の位置決めフック３３１がモータ７のハウジングの周面上に形成された対流孔７６に係合され得る。 See FIGS. 1 and 4. As shown in FIGS. 1 and 4, the positioning hooks 331 on the two elongated plates 33 extending from the substrate 3 described above can be engaged with the convection holes 76 formed on the peripheral surface of the housing of the motor 7.

図６を参照する。図６に示すように、前述した基板３から延びた２つの長板３３上の位置決めフック３３１は、モータ７のハウジングの終端部に係合されてもよい。 See FIG. As shown in FIG. 6, the positioning hooks 331 on the two elongated plates 33 extending from the substrate 3 described above may be engaged with the end portion of the housing of the motor 7.

上述したことから分かるように、本実施形態の空気圧縮機のモータ結合位置決め構造は、モータ７の複数の貫通孔７４，７５を、基板３上に設けられた複数のピン３５，３６上に対応して係合させると、モータ７の前端面７０の内軸受座７１が基板３上の第１の位置決め孔３１内に収容され、モータ７のハウジングの外周縁が、基板３上の２つの弧形位置決めブロック３４により取り囲まれて固定されると、モータ７に嵌設された磁気コイル７２の一端が弧形位置決めブロック３４の頂端面３４１に密着され、基板３に延設された長板３３上の位置決めフック３３１がモータ７のハウジング上に係合されるため、ねじを使用しなくても、基板３上にモータ７を確実に固定し得る。 As can be seen from the above, the motor coupling positioning structure of the air compressor of the present embodiment corresponds to the plurality of through holes 74, 75 of the motor 7 on the plurality of pins 35, 36 provided on the substrate 3. When engaged, the inner bearing seat 71 of the front end surface 70 of the motor 7 is housed in the first positioning hole 31 on the substrate 3, and the outer peripheral edge of the housing of the motor 7 becomes two arcs on the substrate 3. When surrounded and fixed by the shape positioning block 34, one end of the magnetic coil 72 fitted in the motor 7 is brought into close contact with the top end surface 341 of the arc-shaped positioning block 34, and is placed on the long plate 33 extended to the substrate 3. Since the positioning hook 331 of the motor 7 is engaged on the housing of the motor 7, the motor 7 can be securely fixed on the substrate 3 without using a screw.

１：空気圧縮機
２：空気圧縮機
３：基板
４：シリンダー
５：ピストン本体
６：伝動機構
７：モータ
１１：ベース
１２：シリンダー
１３：モータ
１４：ピストン本体
１５：ねじ
３１：第１の位置決め孔
３２：第２の位置決め孔
３３：長板
３４：弧形位置決めブロック
３５：ピン
３６：ピン
３７：軸受
４１：空気貯蔵ユニット
４２：圧力計
６１：小歯車
６２：大歯車
７０：前端面
７１：内軸受座
７２：磁気コイル
７４：貫通孔
７５：貫通孔
７６：対流孔
３３１：位置決めフック
３４１：頂端面
Ａ：歯先円直径
Ｂ：外径 1: Air compressor 2: Air compressor 3: Substrate 4: Cylinder 5: Piston body 6: Transmission mechanism 7: Motor 11: Base 12: Cylinder 13: Motor 14: Piston body 15: Screw 31: First positioning hole 32: Second positioning hole 33: Long plate 34: Arc-shaped positioning block 35: Pin 36: Pin 37: Bearing 41: Air storage unit 42: Pressure gauge 61: Small gear 62: Large gear 70: Front end surface 71: Inside Bearing seat 72: Magnetic coil 74: Through hole 75: Through hole 76: Convection hole 331: Positioning hook 341: Top end surface A: Tooth tip circle diameter B: Outer diameter

Claims (4)

基板、シリンダー、モータ及び伝動機構を備えた、空気圧縮機のモータ結合位置決め構造であって、
前記基板は、複数の位置決め孔を有し、
前記位置決め孔は、第１の位置決め孔及び第２の位置決め孔をそれぞれ含み、
前記シリンダーは、前記基板上に結合されるとともに、空気貯蔵ユニットに連通し、
前記モータは、前記基板上に組み立てられ、
前記基板の前記第１の位置決め孔には、前記モータの芯端に設けられた小歯車が挿入されるとともに、前記モータの内軸受座が収容され、
前記伝動機構は、前記シリンダー内でピストン本体を往復させて圧縮動作を行って圧縮空気を発生させ、
前記基板の後方には、互いに対称な２つの長板が延設され、前記長板上には、位置決めフックがそれぞれ設けられ、前記長板の内側縁には、互いに対称な弧形位置決めブロックがそれぞれ設けられ、前記モータを前記基板に位置決めする際、前記モータの外周縁が前記基板上の前記弧形位置決めブロックにより取り囲まれて固定されると、前記基板に延設された前記長板上の前記位置決めフックが前記モータのハウジング上に係合されるため、ねじを使用しなくても、前記基板上に前記モータを確実に固定し得る、
空気圧縮機のモータ結合位置決め構造。 A motor coupling positioning structure for an air compressor equipped with a substrate, cylinder, motor and transmission mechanism.
The substrate has a plurality of positioning holes and has a plurality of positioning holes.
The positioning hole includes a first positioning hole and a second positioning hole, respectively.
The cylinder is coupled onto the substrate and communicates with the air storage unit.
The motor is assembled on the substrate and
A small gear provided at the core end of the motor is inserted into the first positioning hole of the substrate, and an inner bearing seat of the motor is accommodated.
The transmission mechanism reciprocates the piston body in the cylinder to perform a compression operation to generate compressed air.
Two long plates symmetrical with each other are extended behind the substrate, positioning hooks are provided on the long plates, and arc-shaped positioning blocks symmetrical with each other are provided on the inner edges of the long plates. Each of them is provided, and when the motor is positioned on the substrate, when the outer peripheral edge of the motor is surrounded and fixed by the arc-shaped positioning block on the substrate, it is placed on the long plate extended to the substrate. Since the positioning hook is engaged on the housing of the motor, the motor can be reliably fixed on the substrate without using screws.
Motor coupling positioning structure for air compressor. 前記モータの前記ハウジングの周面上には、互いに対称な２つの対流孔が完全に貫通して形成され、前記対流孔により前記モータの前記ハウジングの内部と、前記モータの前記ハウジングの外部とに気流を流通させ、前記基板に延設された前記長板上の前記位置決めフックが前記モータの前記ハウジングの周面に形成された前記対流孔に係合し得る、
請求項１に記載の空気圧縮機のモータ結合位置決め構造。 Two convection holes symmetrical with each other are completely formed on the peripheral surface of the housing of the motor, and the convection holes are formed inside the housing of the motor and outside the housing of the motor. The airflow is circulated and the positioning hook on the long plate extending to the substrate can engage the convection hole formed in the peripheral surface of the housing of the motor.
The motor coupling positioning structure of the air compressor according to claim 1. 前記小歯車の歯先円直径は、前記モータの前記内軸受座の外径より小さく、
前記基板の前記第２の位置決め孔内には、軸受が取り付けられ、
前記伝動機構は、カウンターウェイトブロックを有する大歯車を含み、
前記大歯車は、前記小歯車と噛合するとともに、軸棒を介して前記軸受に接続され、前記小歯車が一端に設けられた前記モータの前端面には、前記内軸受座を取り囲むように複数の貫通孔が形成され、
前記基板の後方の前記第１の位置決め孔の外周には、前記貫通孔に対応した形状を有する複数のピンが突設されている、
請求項１に記載の空気圧縮機のモータ結合位置決め構造。 The diameter of the tip circle of the small gear is smaller than the outer diameter of the inner bearing seat of the motor.
A bearing is mounted in the second positioning hole of the substrate.
The transmission mechanism includes a large gear having a counterweight block.
The large gear meshes with the small gear and is connected to the bearing via a shaft rod, and a plurality of the large gears are provided on the front end surface of the motor provided with the small gears at one end so as to surround the internal bearing seat. Through hole is formed,
A plurality of pins having a shape corresponding to the through hole are projected from the outer periphery of the first positioning hole behind the substrate.
The motor coupling positioning structure of the air compressor according to claim 1. 前記小歯車の歯先円直径は、前記モータの内軸受座の外径より大きく、
前記基板から延びた前記２つの長板上の前記位置決めフックは、前記モータのハウジングの終端部に係合され、
前記モータのハウジングの周面には、金属材料からなる磁気コイルが嵌設され、
前記モータの外周縁が前記基板上の２つの前記弧形位置決めブロックにより取り囲まれて固定されると、前記モータに嵌設された前記磁気コイルの一端が前記弧形位置決めブロックの頂端面にそれぞれ密着される、
請求項１に記載の空気圧縮機のモータ結合位置決め構造。 The diameter of the tip circle of the small gear is larger than the outer diameter of the inner bearing seat of the motor.
The positioning hooks on the two elongated plates extending from the substrate are engaged with the end of the housing of the motor.
A magnetic coil made of a metal material is fitted on the peripheral surface of the housing of the motor.
When the outer peripheral edge of the motor is surrounded and fixed by the two arc-shaped positioning blocks on the substrate, one end of the magnetic coil fitted in the motor is in close contact with the top end surface of the arc-shaped positioning block. Be done,
The motor coupling positioning structure of the air compressor according to claim 1.
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