JPH1150960A - Shoe for swash plate type compressor and its building-in structure - Google Patents

Shoe for swash plate type compressor and its building-in structure

Info

Publication number
JPH1150960A
JPH1150960A JP9207970A JP20797097A JPH1150960A JP H1150960 A JPH1150960 A JP H1150960A JP 9207970 A JP9207970 A JP 9207970A JP 20797097 A JP20797097 A JP 20797097A JP H1150960 A JPH1150960 A JP H1150960A
Authority
JP
Japan
Prior art keywords
shoe
curvature
piston
outer peripheral
peripheral surface
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.)
Withdrawn
Application number
JP9207970A
Other languages
Japanese (ja)
Inventor
Yoshio Kato
義夫 加藤
Tadahisa Tanaka
唯久 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to JP9207970A priority Critical patent/JPH1150960A/en
Priority to US09/106,187 priority patent/US6024010A/en
Priority to DE19830228A priority patent/DE19830228B4/en
Priority to FR9809757A priority patent/FR2767359B1/en
Publication of JPH1150960A publication Critical patent/JPH1150960A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878Pistons
    • F04B27/0886Piston shoes

Abstract

PROBLEM TO BE SOLVED: To correct a position of contact of a shoe and a piston by making the bus of the outer peripheral surface of a shoe making contact with a spherical seat of the piston a circular arc having a curvature center at a position separated in the radial direction from a central line of the shoe and a curvature radius of which is shorter than a curvature radius of the spherical seat. SOLUTION: A shoe 10 is molded of a steel ball by die forging and shows a semi-spherical or button type outer appearance. An outer peripheral surface 14 making contact with a spherical seat 4b of a piston 4 is a curved surface with a circular arc having curvature centers O1, O1' at a position separated in the radial direction from a central line 12 of the shoe 10 as a bus. As a curvature radius (r) is set shorter than a curvature radius R of the spherical seat 4b, the curvature centers O1, O1' of the outer peripheral surface 14 are positioned separated from a curvature center O of the spherical seat 4b by a distance to the outside in the radial direction and separated by a distance in the axial direction. Consequently, the outer peripheral surface 14 of the shoe 10 constantly makes contact with the spherical seat 4b of the piston 4 at two points and accordingly, corrects a position of contact of the shoe and the piston.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、自動車用エアコ
ン等に用いられる斜板式コンプレッサのシュー及びその
組込み構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe for a swash plate type compressor used in an air conditioner for an automobile and a structure for assembling the shoe.

【0002】[0002]

【従来の技術】斜板式コンプレッサは、図4にその概略
構成を示すように、一対のシリンダブロック(5a,5
b)内に、斜板(2)を固定した回転軸(3)が回転自
在に支持されている。シリンダブロック(5a,5b)
には円周方向の等間隔位置に複数のシリンダボア(5)
が形成され、各ボア(5)内に両頭形のピストン(4)
が摺動自在に収容されている。各ピストン(4)の中央
部分には斜板(2)の外周部を跨ぐようにして凹陥部
(4a)が形成され、この凹陥部(4a)の軸方向対向
面に球面座(4b)が形成されている。シュー(1)は
この球面座(4b)に収容され、斜板(2)とピストン
(4)との間に介在して、斜板(2)の回転運動をピス
トン(4)の往復運動に円滑に変換させる働きをする。
なお、両頭形のピストンを備えた複動型の場合を例示し
たが、単動型の場合も基本的には同様の構成である。
2. Description of the Related Art As shown in FIG. 4, a swash plate type compressor has a pair of cylinder blocks (5a, 5a).
A rotating shaft (3) to which the swash plate (2) is fixed is rotatably supported in b). Cylinder block (5a, 5b)
Has a plurality of cylinder bores (5) at circumferentially equal positions
Formed in each bore (5), a double-headed piston (4)
Are slidably accommodated. A concave portion (4a) is formed at the center of each piston (4) so as to straddle the outer peripheral portion of the swash plate (2), and a spherical seat (4b) is formed on an axially facing surface of the concave portion (4a). Is formed. The shoe (1) is housed in the spherical seat (4b), and is interposed between the swash plate (2) and the piston (4) to convert the rotation of the swash plate (2) into the reciprocating motion of the piston (4). It works to convert smoothly.
Although the double-acting type provided with the double-headed piston is illustrated, the single-acting type basically has the same configuration.

【0003】シュー(1)は一般に半球状で、その球面
状外周面にてピストン(4)の球面座(4b)と係合
し、平坦な底面にて斜板(2)と摺接する。
The shoe (1) is generally hemispherical, engages the spherical seat (4b) of the piston (4) on its spherical outer peripheral surface, and slides on the swash plate (2) on a flat bottom surface.

【0004】従来、図5に示すように、シュー(1)の
球面状外周面のうち、球面座(4b)と接する接触部と
裾野部とを互いに異なる曲率で構成したものが知られて
いる(特公平3−51912号公報参照)。図5は、ピ
ストン(4)の球面座(4b)とそこに収容されたシュ
ー(1)を示したもので、球面座(4b)は単一の曲率
半径をもって形成されており、一方、シュー(1)の球
面状外周面は、球面座(4b)とほぼ同一の曲率半径を
もつ頂部の基準球面(1a)と、球面座(4b)と係合
・離脱を繰り返す裾野の球帯部分が、基準球面(1a)
よりシュー(1)の中心方向に避退した避退球面(1
b)とで構成されている。これにより、避退球面(1
b)と基準球面(1a)との境界部からなだらかに漸増
する適度な空隙がシュー(1)の揺動により大小さまざ
まな形態に変転してくさび作用を助長し、摺動する基準
球面(1a)の接触領域へ効果的に潤滑油を供給するよ
うに意図されたものである。
Conventionally, as shown in FIG. 5, there has been known a shoe (1) having a spherical outer peripheral surface in which a contact portion in contact with a spherical seat (4b) and a foot portion have different curvatures from each other. (See Japanese Patent Publication No. 3-51912). FIG. 5 shows the spherical seat (4b) of the piston (4) and the shoe (1) housed therein, wherein the spherical seat (4b) is formed with a single radius of curvature, while The spherical outer peripheral surface of (1) has a top reference spherical surface (1a) having substantially the same radius of curvature as the spherical seat (4b) and a spherical band portion of a skirt that repeatedly engages and disengages with the spherical seat (4b). , Reference spherical surface (1a)
The retracted spherical surface (1) retracted more toward the center of the shoe (1)
b). Thereby, the retracted spherical surface (1)
The moderate gap gradually increasing from the boundary between the b) and the reference spherical surface (1a) changes into various sizes due to the swing of the shoe (1) to promote the wedge action, and the sliding reference spherical surface (1a). ) Is intended to effectively supply lubricating oil to the contact area.

【0005】[0005]

【発明が解決しようとする課題】斜板式コンプレッサに
おいては、斜板の回転揺動に伴いシューはいわゆるミソ
擦り運動を強いられるため、局部当たりが生じやすく、
これが偏摩耗等の不具合の原因となる。それゆえ、シュ
ーの正確な当たりを確保するため、シューの製造過程に
おいて当たりの位置を所定の範囲に収めるように管理す
る必要がある。
In the swash plate type compressor, the shoe is forced to perform a so-called miso-rubbing motion with the rotation of the swash plate, so that a local contact is likely to occur.
This causes problems such as uneven wear. Therefore, in order to ensure the correct contact of the shoe, it is necessary to manage the position of the contact within a predetermined range in the shoe manufacturing process.

【0006】しかしながら、ピストンの球面座と接する
シューの外周面を球面座とほぼ同一の曲率半径の球面と
した場合、当たり位置が一定せずにばらつきやすい。し
かも、球面座に対するシューの当たり位置は、シューの
球面の仕上がり如何に左右され、それゆえ、シューの高
さ管理を難しくしている。また、シューの外周面を複数
の曲率で構成した場合、加工が難しく、ピストンの球面
座との当たり位置も一層ばらつきやすくなる。
However, when the outer peripheral surface of the shoe which is in contact with the spherical seat of the piston is a spherical surface having a radius of curvature substantially equal to that of the spherical seat, the contact position tends to vary without being constant. In addition, the contact position of the shoe with respect to the spherical seat depends on the finish of the spherical surface of the shoe, which makes it difficult to control the height of the shoe. Further, when the outer peripheral surface of the shoe is formed with a plurality of curvatures, machining is difficult, and the contact position of the piston with the spherical seat is more likely to vary.

【0007】そこで、この発明の目的は、当たりの管理
が容易で、しかも、加工が簡単な斜板式コンプレッサ用
シューを提供することにある。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a swash plate type compressor shoe which can be easily controlled and which can be easily processed.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するた
め、この発明の斜板式コンプレッサ用シューは、ピスト
ンに設けた座面を球面状(球面座)とし、シューの外周
面の母線を、シューの中心線から半径方向に離れた位置
に曲率中心をもち、曲率半径が座面の曲率半径よりも短
い円弧とする。換言すれば、シューのピストンとの当た
り位置に範囲を設け、その範囲内に球面径の公差内で確
実に当てるようにしたものである。これにより、シュー
の外周面は常に定点でピストンと接することとなる。し
たがって、シューの当たりの管理が容易である。曲率中
心と曲率半径によって当たりの位置を正確に設定できる
ため、接触面積、接触径が調整可能で、高速用、高荷重
用等の仕様に応じた最適設計が実現する。
In order to achieve the above object, a swash plate type compressor shoe according to the present invention has a bearing surface provided on a piston formed in a spherical shape (spherical seat), and a bus of an outer peripheral surface of the shoe is formed as a shoe. Has a center of curvature at a position radially distant from the center line, and has a radius of curvature shorter than the radius of curvature of the bearing surface. In other words, a range is provided at the contact position of the shoe with the piston, and the shoe is surely applied within the range within the tolerance of the spherical diameter. Thus, the outer peripheral surface of the shoe always comes in contact with the piston at a fixed point. Therefore, it is easy to manage the contact of the shoe. Since the contact point can be set accurately by the center of curvature and the radius of curvature, the contact area and the contact diameter can be adjusted, and an optimal design according to specifications for high speed, high load, etc. is realized.

【0009】上述のように、シューの外周面がシューの
中心線から半径方向に離れた位置に曲率中心をもち、曲
率半径が球面状の座面の曲率半径よりも短い円弧を母線
としている結果、シューの頂部に窪みが形成される。こ
の窪みは油溜りとして機能する。また、シューの外周面
の母線の曲率半径が座面の曲率半径よりも短く、シュー
の外周面がピストンと定点で接することから、その接点
すなわち当たり点を境にして徐々に広がったくさび状の
すきまが両者間に形成される。このくさび状すきまは両
者間に油を引き込む作用をする。したがって、これらの
窪みとくさび状すきまの各作用が相俟って、シューとピ
ストンとの間の潤滑がきわめて良好に行なわれる。
As described above, the outer circumference of the shoe has a center of curvature at a position radially distant from the center line of the shoe, and the radius of curvature is shorter than the radius of curvature of the spherical bearing surface. A depression is formed at the top of the shoe. This depression functions as an oil sump. In addition, since the radius of curvature of the generatrix of the outer peripheral surface of the shoe is shorter than the radius of curvature of the bearing surface, and the outer peripheral surface of the shoe is in contact with the piston at a fixed point, a wedge-like shape that gradually widens at the contact point, that is, the contact point A gap is formed between the two. The wedge-shaped gap acts to draw oil between the two. Therefore, the lubrication between the shoe and the piston is extremely excellent due to the combined effects of the depression and the wedge-shaped clearance.

【0010】また、この発明による斜板式コンプレッサ
用シューの組込み構造は、ピストンに設けた座面に組み
込んだ状態におけるシューが、管理されたピストンから
の突出量を有するようにしたものである。そのために、
具体的には、座面を球面状とし、シューの外周面の母線
を、シューの中心線から半径方向に離れた位置に曲率中
心をもち、曲率半径が座面の曲率半径よりも短い円弧と
し(請求項3)、あるいは、座面を円錐面状とし、シュ
ーの外周面を球面状とする。これにより、座面とシュー
の外周面とが常に定点で当たることとなるため、ピスト
ンからのシューの突出量を所定値に管理できるのであ
る。
The swash plate type compressor shoe according to the present invention has a structure in which the shoe mounted on the seat provided on the piston has a controlled projection from the piston. for that reason,
Specifically, the bearing surface is spherical, and the generatrix of the outer peripheral surface of the shoe is a circular arc having a center of curvature at a position radially away from the center line of the shoe and having a radius of curvature shorter than the radius of curvature of the bearing surface. (Claim 3) Alternatively, the seating surface is conical, and the outer peripheral surface of the shoe is spherical. As a result, the seat surface and the outer peripheral surface of the shoe always contact at a fixed point, so that the amount of protrusion of the shoe from the piston can be managed to a predetermined value.

【0011】[0011]

【発明の実施の形態】図1に示すように、シュー(1
0)は鋼球から型鍛造によって成型され、半球状ないし
はボタン状の外観を呈している。ピストン(4)球面座
(4b)と接する外周面(14)は、シュー(10)の
中心線(12)から半径方向に離れた位置に曲率中心
(O1 ,O1 ’)をもった円弧を母線とする曲面であ
る。曲率半径(r)は球面座(4b)の曲率半径(R)
よりも短く設定されている。具体的には、外周面(1
4)の曲率中心(O1 ,O1 ’)は、球面座(4b)の
曲率中心(O)から半径方向外側に距離Lだけ離間し、
軸方向に距離Hだけ離間した位置にある。したがって、
シュー(10)の外周面(14)は、縦断面(図1)で
見て、常に2点でピストン(4)の球面座(4b)と当
たることとなる。当該当たり点は曲率中心(O1
1 ’)および曲率半径(r)を変更することによって
変更することができる。外周面の曲率が単一であるた
め、図4に関連して上に述べた複数の曲率のものに比べ
て加工が極めて容易であり、当たり点を正確に設定する
ことができる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
0) is formed by die forging from a steel ball, and has a hemispherical or button-like appearance. An outer peripheral surface (14) in contact with the piston (4) spherical seat (4b) has an arc having a center of curvature (O 1 , O 1 ′) at a position radially away from the center line (12) of the shoe (10). Is a curved surface having a generatrix as a bus. The radius of curvature (r) is the radius of curvature (R) of the spherical seat (4b).
It is set shorter than. Specifically, the outer peripheral surface (1
The center of curvature (O 1 , O 1 ′) of 4) is spaced radially outward by a distance L from the center of curvature (O) of the spherical seat (4b),
It is located at a distance H in the axial direction. Therefore,
The outer peripheral surface (14) of the shoe (10) always hits the spherical seat (4b) of the piston (4) at two points when viewed in a longitudinal section (FIG. 1). The hit point is the center of curvature (O 1 ,
O 1 ′) and the radius of curvature (r). Since the outer peripheral surface has a single curvature, it is extremely easy to process as compared with the plurality of curvatures described above with reference to FIG. 4, and the contact point can be set accurately.

【0012】シュー(10)の外周面(14)の母線を
上述のような円弧としたことによって、シュー(10)
の頂部には窪み(16)が形成される。この窪み(1
6)はピストン(4)の球面座(4b)と接することは
ないため、油溜りとして有効に活用することができる。
窪み(16)はシュー(10)の外周面(14)の母線
を上述のような円弧としたことによる幾何学的な結果と
して、油溜めのための穴を設けるなどの特段の加工を要
することなく、シュー(10)の頂部に形成されるので
あるが、もちろん、穴、溝その他の凹部を付加すること
を排除するものではない。
The bus (10) of the outer peripheral surface (14) of the shoe (10) is formed into an arc as described above.
A depression (16) is formed at the top of the. This depression (1
6) does not come into contact with the spherical seat (4b) of the piston (4), so that it can be effectively used as an oil sump.
The depression (16) requires special processing such as providing a hole for an oil sump as a geometrical result due to the above-described arc of the bus of the outer peripheral surface (14) of the shoe (10). Instead, it is formed at the top of the shoe (10), but of course does not exclude the addition of holes, grooves or other recesses.

【0013】上述のようにシュー(10)の外周面(1
4)をシュー(10)が2点当たりするような縦断面形
状とする代わりに、ピストン(4)の球面座(4b)の
内周面の形状を変更し、たとえば円錐面状とすることに
よっても、シューの2点当たりを実現することが可能で
ある。その場合、円錐面の母線は必ずしも直線に限ら
ず、凸円弧、凹円弧であってもよく、後者の場合はゴシ
ックアーチ形の縦断面形状となる。
As described above, the outer peripheral surface (1) of the shoe (10)
Instead of changing the shape of the inner surface of the spherical seat (4b) of the piston (4) into a conical surface, for example, instead of changing the shape of the inner surface of the spherical seat (4b) of the piston (4) to 4), It is also possible to realize two points per shoe. In this case, the generatrix of the conical surface is not necessarily limited to a straight line, but may be a convex arc or a concave arc. In the latter case, the vertical cross-section has a Gothic arch shape.

【0014】斜板(2:図4参照)と接するシュー(1
0)の摺接面(18)は平坦で、比較的大きな曲率半径
の曲面(19)を経て外周面(14)と連なっている。
なお、摺接面(18)は必ずしも中心線(12)に垂直
な平面である必要はなく、たとえば、大きな曲率の凸球
面、あるいは、周辺部に対して中央部がなだらかに盛り
上がった中高形状とすることも可能であるが、加工が容
易という点では平面が最も有利である。
The shoe (1) in contact with the swash plate (2: see FIG. 4)
The sliding surface (18) of (0) is flat and continues to the outer peripheral surface (14) via a curved surface (19) having a relatively large radius of curvature.
The sliding contact surface (18) does not necessarily have to be a plane perpendicular to the center line (12). For example, the sliding contact surface (18) may have a convex spherical surface having a large curvature or a middle-high shape in which the central portion is gently raised with respect to the peripheral portion. Although planes are possible, planes are most advantageous in terms of ease of processing.

【0015】シュー(10)の当たりの管理は次の要領
で求めたシューの「高さ」を基準にして行なわれる。図
2に示すように、所定の曲率および高さhoに仕上げた
マスターピース(M)を定盤(20)上に置き、その上
に、所定の円錐角の円錐形凹部(24)を備えた治具
(22)を載せ、定盤(20)から治具(22)の上面
までの距離(マスター組み高さ:h1 )を測定する。次
に、定盤(20)上にシュー(10)を置き、その上に
治具(22)を載せて定盤(20)から治具(22)の
上面までの距離(シュー組み高さ:h2 )を測定する。
そして、求めるシュー(10)の高さHを次式より算出
する。
The contact of the shoe (10) is managed based on the "height" of the shoe obtained in the following manner. As shown in FIG. 2, a master piece (M) finished to a predetermined curvature and height ho is placed on a surface plate (20), and a conical recess (24) having a predetermined cone angle is provided thereon. The jig (22) is placed, and the distance (master assembly height: h 1 ) from the surface plate (20) to the upper surface of the jig (22) is measured. Next, the shoe (10) is placed on the surface plate (20), and the jig (22) is placed thereon, and the distance from the surface plate (20) to the upper surface of the jig (22) (shoe assembly height: h 2) is measured.
Then, the height H of the shoe (10) to be obtained is calculated by the following equation.

【0016】H=h0 +(h2 −h1 )シューの高さH
が所定の範囲に収まるように管理することで、所期の当
たりを確保することができる。なお、図3に模式的に示
すように、シュー(10)の外周面(14)を5つの領
域a〜eに分けるならば、球面座(4b)との当たり点
は領域cの部分に相当する。この領域cの上下に位置す
る領域bおよび領域dは、局部当たりがあってはならな
いが、領域cとの連続当たりは許容される。頂部の領域
aは窪み(16)がある部分であって当たりは生じな
い。最も下位の領域eも当たりがあってはならない部分
である。
H = h 0 + (h 2 −h 1 ) shoe height H
Is managed within the predetermined range, it is possible to secure an expected hit. As shown schematically in FIG. 3, if the outer peripheral surface (14) of the shoe (10) is divided into five regions a to e, the point of contact with the spherical seat (4b) corresponds to the region c. I do. The area b and the area d located above and below the area c must not have a local hit, but a continuous hit with the area c is allowed. The region a at the top is a portion having the depression (16), and no hit occurs. The lowermost area e is also a part that should not be hit.

【0017】[0017]

【発明の効果】以上説明したように、この発明の斜板式
コンプレッサ用シューは、ピストンの球面座と接するシ
ューの外周面の母線を、シューの中心線から半径方向に
離れた位置に曲率中心をもち、曲率半径が球面座の曲率
半径よりも短い円弧としたことによって、シューの外周
面が所定の位置で球面座と当たることとなる。したがっ
て、シューの当たりの管理が容易である。
As described above, in the shoe for a swash plate type compressor according to the present invention, the generatrix of the outer peripheral surface of the shoe in contact with the spherical seat of the piston has the center of curvature at a position radially away from the center line of the shoe. Since the radius of curvature is shorter than the radius of curvature of the spherical seat, the outer peripheral surface of the shoe comes into contact with the spherical seat at a predetermined position. Therefore, it is easy to manage the contact of the shoe.

【0018】また、シューの外周面がピストンと所定の
位置で当たることから、その当たり点を境にして徐々に
広がったくさび状のすきまが両者間に形成される。当該
くさび状のすきまは油を引き込むのに有利な形態であ
り、シューとピストン間の潤滑に有利に作用する。加え
て、シューの外周面が、上述のようにシューの中心線か
ら半径方向に離れた位置に曲率中心をもち、曲率半径が
ピストンの凹部の曲率半径よりも短い円弧を母線として
いる結果として、シューの頂部に窪みが形成される。こ
の窪みは油溜りとして機能するため、上述のくさび状す
きまと相乗的に作用して、シューとピストンとの間の潤
滑がきわめて良好に行なわれる。
Further, since the outer peripheral surface of the shoe comes into contact with the piston at a predetermined position, a wedge-shaped clearance gradually widening from the contact point is formed therebetween. The wedge-shaped clearance is a form that is advantageous for drawing oil, and favorably works for lubrication between the shoe and the piston. In addition, as described above, the outer peripheral surface of the shoe has a center of curvature at a position radially away from the center line of the shoe as described above, and the radius of curvature is shorter than the radius of curvature of the recess of the piston as a generatrix. A depression is formed at the top of the shoe. Since this depression functions as an oil sump, it acts synergistically with the wedge-shaped clearance described above to achieve extremely good lubrication between the shoe and the piston.

【0019】さらに、この発明の斜板式コンプレッサの
シューは、外周面の曲率が単一であるため、加工が容易
であり、当たりの管理が容易であることとも相俟って、
高い精度の外周面を備えた斜板式コンプレッサのシュー
を安価に製造することが可能となる。
Further, the shoe of the swash plate type compressor according to the present invention has a single outer peripheral surface with a single curvature, so that it is easy to work and easy to control.
A shoe of a swash plate type compressor having a highly accurate outer peripheral surface can be manufactured at low cost.

【図面の簡単な説明】[Brief description of the drawings]

【図1】ピストンの球面座に当接したシューの縦断面図
である。
FIG. 1 is a longitudinal sectional view of a shoe in contact with a spherical seat of a piston.

【図2】(A)はマスターピースの側面図、(B)は測
定方法を示す説明図である。
FIG. 2A is a side view of a master piece, and FIG. 2B is an explanatory view showing a measuring method.

【図3】シューの当たりを説明するための模式図であ
る。
FIG. 3 is a schematic diagram for explaining a contact of a shoe.

【図4】斜板式コンプレッサの縦断面図である。FIG. 4 is a longitudinal sectional view of a swash plate type compressor.

【図5】従来の技術を示す断面図である。FIG. 5 is a cross-sectional view showing a conventional technique.

【符号の説明】[Explanation of symbols]

10 シュー 12 中心線 14 外周面 16 窪み 18 摺接面 Reference Signs List 10 shoe 12 center line 14 outer peripheral surface 16 dent 18 sliding surface

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 ピストンに設けた球面座と接するシュー
の外周面の母線を、シューの中心線から半径方向に離れ
た位置に曲率中心をもち、曲率半径が座面の曲率半径よ
りも短い円弧としたことを特徴とする斜板式コンプレッ
サ用シュー。
An arc having a generatrix of an outer peripheral surface of a shoe in contact with a spherical seat provided on a piston at a position radially away from a center line of the shoe and having a radius of curvature shorter than a radius of curvature of the bearing surface. A swash plate type compressor shoe, characterized in that:
【請求項2】 ピストンに設けた座面に組み込んだ状態
におけるシューが、ピストンから管理された突出量を有
することを特徴とする斜板式コンプレッサ用シューの組
込み構造。
2. A swash plate type compressor shoe assembling structure according to claim 2, wherein said shoe in a state of being incorporated into a seat provided on said piston has a projecting amount controlled from said piston.
【請求項3】 前記座面を球面状とし、シューの外周面
の母線を、シューの中心線から半径方向に離れた位置に
曲率中心をもち、曲率半径が座面の曲率半径よりも短い
円弧としたことを特徴とする請求項2の斜板式コンプレ
ッサ用シューの組込み構造。
3. An arc having a spherical surface, a generatrix of an outer peripheral surface of the shoe having a center of curvature at a position radially away from a center line of the shoe, and having a radius of curvature shorter than the radius of curvature of the seat surface. The swash plate type compressor shoe according to claim 2, wherein:
【請求項4】 前記座面を円錐面状とし、シューの外周
面を球面状としたことを特徴とする請求項2の斜板式コ
ンプレッサ用シューの組込み構造。
4. The swash plate compressor shoe mounting structure according to claim 2, wherein said seat surface is formed in a conical surface, and an outer peripheral surface of said shoe is formed in a spherical shape.
JP9207970A 1997-08-01 1997-08-01 Shoe for swash plate type compressor and its building-in structure Withdrawn JPH1150960A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9207970A JPH1150960A (en) 1997-08-01 1997-08-01 Shoe for swash plate type compressor and its building-in structure
US09/106,187 US6024010A (en) 1997-08-01 1998-06-29 Shoe for swash plate type compressor and shoe assembly
DE19830228A DE19830228B4 (en) 1997-08-01 1998-07-07 Jaw for a swashplate type compressor and jaw assembly
FR9809757A FR2767359B1 (en) 1997-08-01 1998-07-30 PAD FOR COMPRESSOR TYPE BEATER PLATE AND PAD DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9207970A JPH1150960A (en) 1997-08-01 1997-08-01 Shoe for swash plate type compressor and its building-in structure

Publications (1)

Publication Number Publication Date
JPH1150960A true JPH1150960A (en) 1999-02-23

Family

ID=16548535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9207970A Withdrawn JPH1150960A (en) 1997-08-01 1997-08-01 Shoe for swash plate type compressor and its building-in structure

Country Status (1)

Country Link
JP (1) JPH1150960A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038734A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Semi-spherical shoe
WO2001038732A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Semi-spherical shoe
WO2001038733A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Sliding device
WO2001065116A1 (en) * 2000-03-03 2001-09-07 Taiho Kogyo Co., Ltd. Hemispherical shoe
JP2003003954A (en) * 2001-06-21 2003-01-08 Sanden Corp Swash plate type compressor
JP2004504551A (en) * 2000-07-13 2004-02-12 アルテンロー・ブリンク・ウント・コー・ゲー・エム・ベー・ハー・ウント・コー・カー・ゲー Fastening structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038734A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Semi-spherical shoe
WO2001038732A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Semi-spherical shoe
WO2001038733A1 (en) * 1999-11-26 2001-05-31 Taiho Kogyo Co., Ltd. Sliding device
WO2001065116A1 (en) * 2000-03-03 2001-09-07 Taiho Kogyo Co., Ltd. Hemispherical shoe
JP2004504551A (en) * 2000-07-13 2004-02-12 アルテンロー・ブリンク・ウント・コー・ゲー・エム・ベー・ハー・ウント・コー・カー・ゲー Fastening structure
JP2003003954A (en) * 2001-06-21 2003-01-08 Sanden Corp Swash plate type compressor

Similar Documents

Publication Publication Date Title
US8632257B2 (en) Rolling bearing and method for the production thereof
JPH1122640A (en) Shoe for swash plate compressor
US6024010A (en) Shoe for swash plate type compressor and shoe assembly
EP0896854A1 (en) Method of producing piston for swash plate compressor
JP4149056B2 (en) Bearing device for swash plate compressor
JPH1150960A (en) Shoe for swash plate type compressor and its building-in structure
CN103026065B (en) Oblique tray type compressor
EP1750009B1 (en) A spherical joint of a hydrostatic piston machine
JP3942242B2 (en) Swash plate type compressor shoe
JPH1150959A (en) Shoe for swash plate type compressor
JP6104237B2 (en) Piston for internal combustion engine and method of manufacturing the piston
JP3803135B2 (en) Shoe for swash plate compressor
WO2001066945A1 (en) Variable displacement type compressor
KR101004237B1 (en) Axial piston machine
US6468180B1 (en) Toroidal type continuously variable transmission and method of manufacturing disk for toroidal type continuously variable transmission
JP2697321B2 (en) Internal combustion engine piston
KR19980064372A (en) Cross Groove, Constant Velocity Joint
US6941852B1 (en) Unitary hollowed piston with improved structural strength
JPH06142815A (en) Forging die for shaft shaped article
US20010047720A1 (en) Compressor piston and process for producing the compressor piston
JP2002317823A (en) Manufacturing method for outer ring for cross groove joint
JP2623214B2 (en) Constant velocity rotary joint
JP2006509956A5 (en)
JPS60219479A (en) Swash-plate type compressor
JP2021050696A (en) Two-speed hydraulic motor

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20041005