JPH0542258Y2 - - Google Patents
Info
- Publication number
- JPH0542258Y2 JPH0542258Y2 JP1988134116U JP13411688U JPH0542258Y2 JP H0542258 Y2 JPH0542258 Y2 JP H0542258Y2 JP 1988134116 U JP1988134116 U JP 1988134116U JP 13411688 U JP13411688 U JP 13411688U JP H0542258 Y2 JPH0542258 Y2 JP H0542258Y2
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- connecting pin
- link member
- hole
- link
- 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.)
- Expired - Lifetime
Links
- 230000037431 insertion Effects 0.000 claims description 30
- 238000003780 insertion Methods 0.000 claims description 30
- 230000013011 mating Effects 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、一般機械、産業機械等、リンク機構
を必要とする機械に適用して好適なリンク部材の
連結装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a link member coupling device suitable for application to machines that require a link mechanism, such as general machines and industrial machines.
従来技術によるリンク部材として容量可変型斜
軸式油圧ポンプの容量制御機構に適用した場合を
例に挙げ、第２図および第３図に基づいて説明す
る。
An example in which a conventional link member is applied to a displacement control mechanism of a variable displacement oblique shaft hydraulic pump will be described with reference to FIGS. 2 and 3.
図において、１は略円筒状のケーシング本体１
Ａと、該ケーシング本体１Ａの一端を閉塞するヘ
ツドケーシング１Ｂとからなるケーシング、２は
該ケーシング本体１Ａ内に回転可能に突設された
回転軸、３は前記ケーシング本体１Ａ内に位置し
て該回転軸２と共に回転するシリンダブロツク
で、該シリンダブロツク３にはその軸方向に複数
のシリンダ４が穿設されている。該各シリンダ４
内にはピストン５が摺動可能に設けられており、
該各ピストン５にはコネクテイングロツド６が取
付けられている。そして、該各コネクテイングロ
ツド６の先端には球形部６Ａが形成され、該球形
部６Ａは回転軸２の先端に形成されたドライブデ
イスク７に揺動自在に支持されている。 In the figure, 1 is a substantially cylindrical casing body 1
A and a head casing 1B that closes one end of the casing body 1A; 2 is a rotary shaft protruding rotatably into the casing body 1A; 3 is a rotating shaft located within the casing body 1A; The cylinder block 3 rotates together with a rotating shaft 2, and a plurality of cylinders 4 are bored in the cylinder block 3 in the axial direction thereof. Each cylinder 4
A piston 5 is slidably provided inside.
A connecting rod 6 is attached to each piston 5. A spherical portion 6A is formed at the tip of each connecting rod 6, and the spherical portion 6A is swingably supported by a drive disk 7 formed at the tip of the rotating shaft 2.
８は弁板を示し、該弁板８は一側端面がシリン
ダブロツク３に摺接すると共に、他側端面はヘツ
ドケーシング１Ｂに形成された傾転摺動面９に摺
動可能に摺接せしめられている。また、該弁板８
の中心にはセンタシヤフト１０の先端部が挿入さ
れる有底状挿入孔８Ａが形成され、かつ各シリン
ダ４と間歇的に連通する給排ポート８Ｂ，８Ｃが
形成されており、さらに、その両側端面には厚さ
方向、高さ方向の中心に後述の連結ピン２０を挿
入する軸受孔８Ｄ，８Ｄが形成されている。 Reference numeral 8 denotes a valve plate, and one end surface of the valve plate 8 is in sliding contact with the cylinder block 3, and the other end surface is slidably in contact with a tilting sliding surface 9 formed on the head casing 1B. ing. In addition, the valve plate 8
A bottomed insertion hole 8A into which the tip of the center shaft 10 is inserted is formed in the center, and supply/discharge ports 8B and 8C that communicate intermittently with each cylinder 4 are formed, and furthermore, on both sides thereof Bearing holes 8D, 8D into which a connecting pin 20 (described later) is inserted are formed at the center of the end face in the thickness direction and height direction.
１０はドライブデイスク７と弁板８との間でシ
リンダブロツク３を支持するためのセンタシヤフ
トで、該センタシヤフト１０はその一端側に球形
部１０Ａが形成され、該球形部１０Ａはドライブ
デイスク７の中心を傾転中心として揺動自在に支
持されている。 Reference numeral 10 denotes a center shaft for supporting the cylinder block 3 between the drive disk 7 and the valve plate 8. The center shaft 10 has a spherical portion 10A formed at one end thereof. It is supported so as to be able to swing freely around the center.
１１は傾転摺動面９に沿つて弁板８を傾転させ
て容量可変制御を行う傾転機構で、該傾転機構１
１は弁板８の上方でヘツドケーシング１Ｂの周壁
部に突設されたシリンダ部１２と、該シリンダ部
１２の上側開口部を覆うカバー１３と、シリンダ
部１２に穿設された通油孔１２Ａとカバー１３に
穿設された通油孔１３Ａを介して圧油が給排され
るシリンダ室１４と、該シリンダ室１４内に摺動
可能に挿嵌されたピストン部１５Ａ、ヘツドケー
シング１Ｂのピストン挿通孔を介してケーシング
１内に延びるピストンロツド部１５Ｂ、および該
ピストンロツド部１５Ｂ先端に形成された差込部
１５Ｃからなるサーボピストン１５と、リンク機
構１６とから構成されている。ここで、前記リン
ク機構１６は一端側が一側突起部１７Ａと他側突
起部１７Ｂとからなる二又部１７Ｃに形成され、
他端側が弁板８を跨ぐように半円形状の二又腕部
１７Ｄに分岐したリンク１７と、該リンク１７の
各突起部１７Ａ，１７Ｂとこれらの間に差し込ま
れたピストンロツド１５の差込部１５Ｃとを貫通
して設けられ、ピストンロツド部１５Ｂに対して
リンク１７を回動可能に連結する連結ピン１８と
該連結ピン１８を止める止め軸１９と、リンク１
７の二又腕部１７Ｄ先端に設けられ、弁板８の軸
受孔８Ｄ，８Ｄに回動可能に挿入された連結ピン
２０，２０とから構成されている。 Reference numeral 11 denotes a tilting mechanism that performs variable capacity control by tilting the valve plate 8 along the tilting sliding surface 9;
Reference numeral 1 denotes a cylinder portion 12 projecting from the peripheral wall of the head casing 1B above the valve plate 8, a cover 13 that covers the upper opening of the cylinder portion 12, and an oil hole 12A formed in the cylinder portion 12. A cylinder chamber 14 into which pressure oil is supplied and discharged through an oil passage hole 13A formed in the cover 13, a piston portion 15A slidably inserted into the cylinder chamber 14, and a piston of the head casing 1B. The servo piston 15 is composed of a piston rod portion 15B extending into the casing 1 through an insertion hole, and an insertion portion 15C formed at the tip of the piston rod portion 15B, and a link mechanism 16. Here, one end of the link mechanism 16 is formed into a forked portion 17C consisting of a protrusion 17A on one side and a protrusion 17B on the other side,
A link 17 branched into a semicircular bifurcated arm portion 17D so that the other end straddles the valve plate 8, each protrusion portion 17A, 17B of the link 17, and an insertion portion of the piston rod 15 inserted between these. 15C and rotatably connects the link 17 to the piston rod portion 15B; a stop shaft 19 that stops the connecting pin 18;
The connecting pins 20, 20 are provided at the tip of the fork arm portion 17D of the valve plate 8, and are rotatably inserted into the bearing holes 8D, 8D of the valve plate 8.
従来技術による容量可変型斜軸式油圧ポンプは
前述の構成を有するもので、次にその作動を説明
する。 The variable capacity oblique shaft hydraulic pump according to the prior art has the above-mentioned configuration, and its operation will now be described.
まず、傾転機構１１によつてシリンダブロツク
３と共に弁板８を傾転するには、例えば傾転制御
揺動補助ポンプからの圧油を通油孔１３Ａ，１２
Ａからシリンダ室１４に供給し、サーボピストン
１５を直線運動として変位させる。これにより、
該サーボピストン１５のピストンロツド部１５Ｂ
の先端の差込部１５Ｃに連結ピン１８にて連結さ
れたリンク１７を介して弁板８が傾転摺動面９上
を摺動しつつ傾転する結果、シリンダブロツク３
も傾転し、その回転中心軸は回転軸２の軸線に対
して傾転最大側（傾転最小側）に傾転し、第２図
の状態となる。 First, in order to tilt the valve plate 8 together with the cylinder block 3 by the tilt mechanism 11, for example, pressure oil from a tilt control rocking auxiliary pump is passed through the oil holes 13A, 12.
A is supplied to the cylinder chamber 14, and the servo piston 15 is displaced as a linear motion. This results in
Piston rod portion 15B of the servo piston 15
As a result, the valve plate 8 is tilted while sliding on the tilting sliding surface 9 via the link 17 connected to the insertion portion 15C at the tip end of the cylinder block 3 by the connecting pin 18.
The rotary shaft 2 is also tilted, and its rotation center axis is tilted to the maximum tilt side (minimum tilt side) with respect to the axis of the rotating shaft 2, resulting in the state shown in FIG.
この際、サーボピストン１５が直線運動するの
に対して、弁板８は傾転摺動面９に案内されて円
弧運動するが、該サーボピストン１５とリンク１
７は連結ピン１８を介して回動可能に連結され、
該リンク１７と弁板８は連結ピン２０を介して回
動可能に連結されているから、直線運動と円弧運
動の変換を円滑に行うことができる。 At this time, while the servo piston 15 moves linearly, the valve plate 8 moves in a circular arc guided by the tilting sliding surface 9.
7 are rotatably connected via a connecting pin 18,
Since the link 17 and the valve plate 8 are rotatably connected via the connecting pin 20, it is possible to smoothly convert between linear motion and circular arc motion.
次に、エンジン、電動機等の駆動源を回転し、
回転軸２を回転駆動すると、該回転軸２と共にシ
リンダブロツク３が回転せしめられる、すると、
シリンダブロツク３の回転中に各ピストン５はシ
リンダ４内を往復動する。そして、各ピストン５
がシリンダ４内から退行する時はヘツドケーシン
グ１Ｂの傾転摺動面９に開口する給排通路から給
排ポート８Ｂ，８Ｃを介してシリンダ４内に作動
油を吸入する吸入行程となり、ピストン５がシリ
ンダ４内に進入する時は該シリンダ４内の作動油
を加圧し、給排ポート８Ｃ，８Ｂを介して給排通
路から吐出させる吐出行程となる。 Next, a drive source such as an engine or electric motor is rotated,
When the rotating shaft 2 is driven to rotate, the cylinder block 3 is rotated together with the rotating shaft 2. Then,
While the cylinder block 3 is rotating, each piston 5 reciprocates within the cylinder 4. And each piston 5
When the piston 5 retracts from inside the cylinder 4, the piston 5 enters a suction stroke in which hydraulic oil is sucked into the cylinder 4 from the supply/discharge passage opened on the tilting sliding surface 9 of the head casing 1B via the supply/discharge ports 8B, 8C. When the oil enters the cylinder 4, the hydraulic oil in the cylinder 4 is pressurized and is discharged from the supply and discharge passage through the supply and discharge ports 8C and 8B, resulting in a discharge stroke.
ところで、上述した従来技術にあつては、リン
ク機構１６は、直線運動をする相手方部材として
の先端が差込部１５Ｃに形成されたピストンロツ
ド部１５Ｂと、円弧運動をするリンク部材として
の一端側が二又部１７Ｃに形成されたリンク１７
と、前記差込部１５Ｃと前記二又部１７Ｃとを貫
通して前記ピストンロツド部１５Ｂと前記リンク
１７とを連結する連結ピン１８と、該連結ピン１
８を止める止め輪１９とから構成されている。し
たがつて、ピストンロツド部１５Ｂとリンク１７
とを連結ピン１８によつて連結させる場合は、第
３図において、リンク１７の二又部１７Ｃを構成
する一側突起部１７Ａと他側突起部１７Ｂとに
各々同軸に穿設されたピン穴と、ピストンロツド
部１５Ｂの差し込部１５Ｃに穿設されたピン穴と
に連結ピン１８を貫通させるため、右側から頭部
を持って連結ピン１８を差し込み、差し込み完了
後、左側において止め輪１９の取付作業を行う。
この結果、連結ピン１８の左右両側には取付作業
のための空間が必要となり、スペースを取るとい
う欠点がある。また、サーボピストン１５または
連結ピン１８等を交換する必要が生じた場合は、
外部からの止め輪１９および連結ピン１８の取り
外しは不可能で、分解、組立が困難であるという
欠点がある。
By the way, in the above-mentioned prior art, the link mechanism 16 has a piston rod part 15B whose tip is formed in the insertion part 15C as a counterpart member that moves linearly, and a piston rod part 15B that is a link member that moves in an arc and has two ends. Link 17 formed in the additional portion 17C
, a connecting pin 18 that passes through the insertion portion 15C and the forked portion 17C and connects the piston rod portion 15B and the link 17, and the connecting pin 1
8. Therefore, the piston rod portion 15B and the link 17
In the case of connecting the two by means of a connecting pin 18, in FIG. In order to pass the connecting pin 18 through the pin hole drilled in the insertion portion 15C of the piston rod portion 15B, insert the connecting pin 18 from the right side by holding the head. After insertion is completed, insert the retaining ring 19 on the left side. Perform installation work.
As a result, a space is required on both the left and right sides of the connecting pin 18 for attachment work, which has the disadvantage of taking up space. In addition, if it becomes necessary to replace the servo piston 15 or the connecting pin 18, etc.,
There is a drawback that it is impossible to remove the retaining ring 19 and the connecting pin 18 from the outside, and disassembly and assembly are difficult.
本考案は前述した従来技術の欠点に鑑みなされ
たもので、取付作業のためのスペースを減少でき
ると共に、分解、組立を容易とすることができる
リンク部材の連結装置を提供することを目的とす
るものである。 The present invention was devised in view of the above-mentioned shortcomings of the prior art, and it is an object of the present invention to provide a link member connecting device that can reduce the space for installation work and can be easily disassembled and assembled. It is something.
前述した課題を解決するために、本考案が採用
する構成は、先端側が一側突起部と他側突起部と
からなる二又部となつたリンク部材と、先端部が
該リンク部材の二又部に差し込まれる差込部とな
つた相手方部材と、前記リンク部材の二又部と相
手方部材の差込部とを連結する連結ピンとからな
るリンク部材の連結装置において、前記リンク部
材の二又部は一側突起部にはねじ穴を形成すると
共に、他側突起部には該ねじ穴と同軸に嵌合穴を
形成し、前記相手方部材の差込部には嵌合穴を形
成し、前記連結ピンは頭部と軸部とからなり、該
軸部を前記リンク部材のねじ穴に螺合すべく、該
軸部を前記頭部側に位置したねじ部と該リンク部
材の嵌合穴と相手方部材の嵌合穴とに嵌合される
ピン部とから形成し、前記リンク部材の二又部は
ねじ穴が形成された一側突起部の長さ寸法を嵌合
穴が形成された他側突起部の長さ寸法よりも大と
なし、前記連結ピンはねじ部の長さをピン部の長
さよりも大となし、相手方部材の分解時には前記
ねじ穴とねじ部との噛み合いを外さなくても、リ
ンク部材との連結を解除しうるようにしたことに
ある。
In order to solve the above-mentioned problems, the configuration adopted by the present invention includes a link member whose distal end is a forked part consisting of a protrusion on one side and a protrusion on the other side, and a link member whose distal end is a bifurcated part consisting of a protrusion on one side and a protrusion on the other side. In a linking device for a link member, the linking device includes a mating member that serves as an insertion part that is inserted into the link member, and a connecting pin that connects the fork part of the link member and the insertion part of the mating member, wherein the fork part of the link member A screw hole is formed in the protrusion on one side, a fitting hole is formed in the protrusion on the other side coaxially with the screw hole, a fitting hole is formed in the insertion portion of the mating member, and the protrusion on the other side has a fitting hole coaxially formed with the screw hole. The connecting pin consists of a head and a shaft, and in order to screw the shaft into the threaded hole of the link member, the shaft is connected to the threaded part located on the head side and the fitting hole of the link member. and a pin portion to be fitted into the fitting hole of the counterpart member, and the forked portion of the link member has a length dimension of one side protrusion in which a screw hole is formed, and the other side has a fitting hole formed therein. The length of the connecting pin is larger than the length of the side protrusion, and the length of the threaded part of the connecting pin is larger than the length of the pin part, so that the engagement between the threaded hole and the threaded part does not need to be removed when disassembling the other member. Another advantage is that the connection with the link member can be released.
このように構成することにより、リンク部材の
二又部の一側突起部のねじ穴に連結ピンの軸部の
ねじ部を螺合させると共に、リンク部材の二又部
の他側突起部の嵌合穴と相手方部材の差込部の嵌
合穴とに連結ピンのピン部を嵌合させれば、リン
ク部材と相手方部材は連結ピンを介して連結され
る。この結果、連結ピンの取付作業はリンク部材
の一側のみから行うことができ、かつ止め輪等の
締着作業が不要となるから、周辺の作業空間が狭
い場所でも容易に分解、組立を行うことができ
る。
With this configuration, the threaded portion of the shaft portion of the connecting pin is screwed into the threaded hole of the protrusion on one side of the forked portion of the link member, and the protrusion on the other side of the forked portion of the link member is fitted. By fitting the pin portion of the connecting pin into the matching hole and the fitting hole of the insertion portion of the counterpart member, the link member and the counterpart member are connected via the connecting pin. As a result, the connecting pin can be installed from only one side of the link member, and there is no need to tighten retaining rings, etc., making it easy to disassemble and assemble even in places with limited surrounding work space. be able to.
また、二又部の一側突起部の長さ寸法を他側突
起部の長さ寸法よりも大となし、連結ピンのねじ
部の長さをピン部の長さよりも大とすることで、
連結を解除するときには、ねじのねじ部をねじ穴
に噛み合わせた状態で行なうことができ、ねじを
リンク部材から取り外す必要がなくなる。 In addition, by making the length of the protrusion on one side of the forked part larger than the length of the protrusion on the other side, and making the length of the threaded part of the connecting pin larger than the length of the pin part,
When the connection is released, the threaded portion of the screw can be engaged with the screw hole, and there is no need to remove the screw from the link member.
以下、本考案の実施例を第１図に基づいて説明
する。なお、前述した従来技術と同一の構成要素
に同一の符合を付し、その説明は省略するものと
する。
Hereinafter, an embodiment of the present invention will be described based on FIG. Note that the same reference numerals are given to the same components as in the prior art described above, and the explanation thereof will be omitted.
図において、３１は本実施例におけるリンク部
材としてのリンクで、該リンク３１は一端側が一
側突起部３１Ａと他側突起部３１Ｂとからなる二
又部３１Ｃに形成されており、他端側が弁板８を
跨ぐように半円形状の二又腕部３１Ｄに形成され
ている。リンク３１の二又腕部３１Ｄ先端には弁
板８０の軸受孔８Ｄに回動可能に挿入された連結
ピン２０が設けられている。 In the figure, 31 is a link as a link member in this embodiment, and one end of the link 31 is formed into a forked part 31C consisting of a protrusion 31A on one side and a protrusion 31B on the other side, and the other end is a valve. It is formed into a semicircular bifurcated arm portion 31D so as to straddle the plate 8. A connecting pin 20 rotatably inserted into a bearing hole 8D of a valve plate 80 is provided at the tip of the fork arm portion 31D of the link 31.
ここで、前記リンク３１の一側突起部３１Ａの
軸方向の長さ寸法l1は他側突起部３１Ｂの軸方向
の長さ寸法l2よりも大きく（l1＞l2）設定されて
いる。３２は１側突起部３１Ａを貫通して設けら
れたねじ穴、３３は該ねじ穴３２と同軸で他側突
起部３１Ｂを貫通して設けられた嵌合穴である。 Here, the axial length l 1 of the one side protrusion 31A of the link 31 is set larger than the axial length l 2 of the other side protrusion 31B (l 1 > l 2 ). . Reference numeral 32 denotes a screw hole provided through the first side protrusion 31A, and numeral 33 is a fitting hole coaxial with the screw hole 32 and provided through the other side protrusion 31B.
３４は相手方部材としてのピストンロツドで、
該ピストンロツド３４は先端部がリンク３１の二
又部３１Ｃに差し込まれる差込部３４Ａに形成さ
れている。３５は差込部３４Ａを貫通して設けら
れた嵌合穴である。 34 is a piston rod as a counterpart member;
The piston rod 34 has an insertion portion 34A whose tip end is inserted into the forked portion 31C of the link 31. 35 is a fitting hole provided through the insertion portion 34A.
３６は頭部３６Ａと軸部３６Ｂとからなる連結
ピンで、該連結ピン３６の頭部３６Ａには締付部
としての六角穴（場合によつては頭部３６Ａは六
角頭でもよい）が形成されている。３７は連結ピ
ン３６の軸部３６Ｂの基端側に設けられたねじ部
で、該ねじ部３７はリンク３１のねじ穴３２に螺
合可能に形成されている。３８は連結ピン３６の
軸部３６Ｂの先端側に設けられたピン部で、該ピ
ン部３８は突起部３１Ｂの嵌合穴３３と差込部３
４Ａの嵌合穴３５に嵌合可能に形成されている。
そして、ねじ部３７の長さL1はピン部３８の長
さL2よりも大きく（L1＞L2）設定されている。
また、連結ピン３６を螺合した状態では、ピン部
３８と差込部３４Ａの嵌合穴３５とは遊嵌状態
に、ピン部３８と突起部３１Ｂの嵌合穴３３とは
締りばめ状態に設定されている。 36 is a connecting pin consisting of a head 36A and a shaft portion 36B, and the head 36A of the connecting pin 36 has a hexagonal hole (in some cases, the head 36A may be a hexagonal head) as a tightening portion. has been done. Reference numeral 37 denotes a threaded portion provided on the proximal end side of the shaft portion 36B of the connecting pin 36, and the threaded portion 37 is formed to be able to be screwed into the threaded hole 32 of the link 31. Reference numeral 38 denotes a pin portion provided on the distal end side of the shaft portion 36B of the connecting pin 36, and the pin portion 38 is connected to the fitting hole 33 of the projection portion 31B and the insertion portion 3.
It is formed to be able to fit into the fitting hole 35 of 4A.
The length L 1 of the threaded portion 37 is set to be larger than the length L 2 of the pin portion 38 (L 1 >L 2 ).
Furthermore, when the connecting pin 36 is screwed together, the pin portion 38 and the fitting hole 35 of the insertion portion 34A are loosely fitted, and the pin portion 38 and the fitting hole 33 of the protrusion 31B are tightly fitted. is set to .
３９は本実施例のヘツドケーシングで、該ヘツ
ドケーシング３９には連結ピン３６と同軸延長上
で頭部３６Ａ側に連結ピン挿入用ねじ穴４０が形
成され、該ねじ穴４０はプラグ（図示せず）によ
つて施蓋されている。 Reference numeral 39 designates the head casing of this embodiment, and the head casing 39 has a connecting pin insertion screw hole 40 formed on the head 36A side on a coaxial extension with the connecting pin 36, and the screw hole 40 has a plug (not shown). ) is covered by.
本実施例は前述の如く構成されるもので、その
基本的作動については従来技術によるものと格別
差異はない。 This embodiment is constructed as described above, and there is no particular difference in its basic operation from that of the prior art.
然るに、本実施例では連結ピン挿入用ねじ穴４
０を介して外部から連結ピン３６を挿入し、該連
結ピン３６のねじ部３７を一側突起部３１Ａのね
じ穴３２に螺合させ、次に、ピン部３８を差込部
３４Ａの嵌合穴３５に嵌合させると共に他側突起
部３１Ｂの嵌合穴３３に嵌合させれば、リンク３
１の一側突起部３１Ａは連結ピン３６のピン部３
８とねじ部３７を介して、他側突起部３１Ｂは連
結ピン３６のピン部３８を介してピストンロツド
３４に回動可能に連結される。 However, in this embodiment, the connecting pin insertion screw hole 4
Insert the connecting pin 36 from the outside through 0, screw the threaded portion 37 of the connecting pin 36 into the screw hole 32 of the one side protrusion 31A, and then insert the pin portion 38 into the insertion portion 34A. If the link 3 is fitted into the hole 35 and also fitted into the fitting hole 33 of the other side protrusion 31B, the link 3
1 is the pin portion 3 of the connecting pin 36.
8 and the threaded portion 37, the other side protrusion 31B is rotatably connected to the piston rod 34 via the pin portion 38 of the connecting pin 36.
従つて、ヘツドケーシング３９の外部から、一
方向側への操作のみで、連結ピン３６を取付け、
取外しすることができるから、該連結ピン３６の
取付作業のためのスペースが少ない場合でも、ピ
ストンロツド３４を有するサーボピストン１５等
の交換時における分解、組立は、連結ピン３６の
外部からの取外し、取付けの他に、傾転機構のシ
リンダ室を覆うカバーの取外し、取付け程度の作
業を極めて容易に行える。 Therefore, the connecting pin 36 can be installed by only operating in one direction from the outside of the head casing 39.
Since the connecting pin 36 can be removed, even if the space for installing the connecting pin 36 is small, disassembly and assembly when replacing the servo piston 15 etc. having the piston rod 34 can be done by removing and installing the connecting pin 36 from the outside. In addition, operations such as removing and attaching the cover covering the cylinder chamber of the tilting mechanism can be performed extremely easily.
また、リンク３１の二又部３１Ｃをなす一側突
起部３１Ａの長さl1と他側突起部３１Ｂの長さl2
の関係はl1＞l2となり、連結ピン３６のねじ部３
７の長さl1とピン部３８の長さL2の関係はL1＞L2
となるように設定されている。これにより、連結
を解除するときには、連結ピン３６を一側に移動
させてピン部３８が一側突起部３１Ａの他側面か
ら突出しないようにすれば、ねじ部３７をねじ穴
３２に噛み合わせて連結ピン３２をリンク３１に
取付けたままの状態で、ピストンロツド３４の差
込部３４Ａを二又部３１Ｃから解除することがで
きる。 Furthermore, the length l 1 of the protrusion 31A on one side forming the fork 31C of the link 31 and the length l 2 of the protrusion 31B on the other side
The relationship is l 1 > l 2 , and the threaded portion 3 of the connecting pin 36
The relationship between the length l 1 of 7 and the length L 2 of the pin part 38 is L 1 > L 2
It is set so that As a result, when releasing the connection, if the connecting pin 36 is moved to one side so that the pin part 38 does not protrude from the other side of the protrusion 31A, the threaded part 37 can be engaged with the screw hole 32. The insertion portion 34A of the piston rod 34 can be released from the forked portion 31C while the connecting pin 32 remains attached to the link 31.
一方、連結解除した後の、再組立においても、
ピストンロツド３４の差込部３４Ａをリンク３１
の二又部３１Ｃに差し込み、連結ピン３６を他側
に移動させることで、連結作業を行なうことがで
きる。そして、連結ピン３６のねじ穴３２への再
挿入を不要とすることができると共に、嵌合穴３
３と嵌合穴３５との位置決めも容易に行うことが
でき、作業性を向上させることができる。 On the other hand, even when reassembling after uncoupling,
Connect the insertion part 34A of the piston rod 34 to the link 31
The connecting operation can be performed by inserting the connecting pin 36 into the forked portion 31C of the connecting pin 36 and moving the connecting pin 36 to the other side. Therefore, it is not necessary to reinsert the connecting pin 36 into the screw hole 32, and the fitting hole 32 can be omitted.
3 and the fitting hole 35 can be easily positioned, and work efficiency can be improved.
さらに、本実施例のようにヘツドケーシング３
９に形成した連結ピン挿入用ねじ穴４０からの作
業のみで、解除，連結作業を行なうことができ、
解除作業中に前記ヘツドケーシング３９内に連結
ピン３６が落ちるのを防止でき、作業性を著しく
向上できる。 Furthermore, as in this embodiment, the head casing 3
The release and connection work can be performed only by working through the connecting pin insertion screw hole 40 formed in 9.
The connecting pin 36 can be prevented from falling into the head casing 39 during the release operation, and work efficiency can be significantly improved.
又、連結ピン３６のピン部３８と他側突起部３
１Ｂの嵌合穴３３との嵌合状態は締りばめである
から、ねじ部３７の緩みを確実に防止することが
できる。 Also, the pin portion 38 of the connecting pin 36 and the other side protrusion 3
Since the fitting state of the fitting hole 33 of 1B is a tight fit, loosening of the threaded portion 37 can be reliably prevented.
なお、本実施例では、連結ピン挿入用ねじ穴４
０は通常時は該ねじ穴４０に締着するプラグ等で
閉塞させればよい。また、該ねじ穴４０をドレー
ン穴と兼用させれば無駄がなく、好適な構成とな
る。さらに、容量可変型斜軸式油圧ポンプに限る
ものでなく、本考案は先端部が二又部となつたリ
ンク部材と、先端部が該二又部に差し込まれる差
込部となつた相手方部材と、前記二又部と前記差
込部とを連結する連結ピンとからなるリンク部材
の連結装置に広く適用可能である。 In addition, in this embodiment, the connecting pin insertion screw hole 4
0 may be normally closed with a plug or the like that is fastened to the screw hole 40. Moreover, if the screw hole 40 is also used as a drain hole, there will be no waste and a suitable configuration will be achieved. Furthermore, the present invention is not limited to variable capacity oblique shaft type hydraulic pumps, and the present invention includes a link member whose distal end is a forked part, and a counterpart member whose distal end is an insertion part inserted into the forked part. and a connecting pin that connects the forked portion and the insertion portion.
以上詳述した通り、本考案によれば、リンク部
材の二又部の一側突起部にねじ穴を形成し、他側
突起部に嵌合穴を形成し、前記二又部の各突起部
間に差し込まれる相手方部材の差込部に前記ねじ
穴および嵌合穴と同軸の嵌合穴を形成し、前記各
穴には、一側から順に頭部とねじ部、ピン部から
なる軸部とを有し、前記ねじ部がねじ穴に螺合
し、ピン部が各嵌合穴に嵌合することで、リンク
部材と相手方部材を連結する連結ピンを一側から
挿入し、前記一側突起部の長さ寸法は他側突起部
の長さ寸法よりも大となり、連結ピンのねじ部は
ピン部よりも大となるように形成したから、一方
向から操作で連結ピンを各穴の軸方向に移動させ
ることで、連結解除を容易に行うことができ、連
結ピンの取付作業のためのスペースが狭い場所で
も楽に作業を行うことができる。
As detailed above, according to the present invention, a threaded hole is formed in one protrusion of the forked part of the link member, a fitting hole is formed in the other protrusion, and each protrusion of the forked part A fitting hole coaxial with the screw hole and the fitting hole is formed in the insertion portion of the mating member to be inserted between the holes, and a shaft portion consisting of a head, a screw portion, and a pin portion is formed in each hole in order from one side. The threaded portion is screwed into the screw hole, and the pin portion is fitted into each fitting hole, so that a connecting pin that connects the link member and the other member is inserted from one side, and the one side The length of the protrusion is larger than the length of the protrusion on the other side, and the threaded portion of the connecting pin is larger than the pin, so the connecting pin can be inserted into each hole by operating from one direction. By moving in the axial direction, the connection can be easily disconnected, and the work can be carried out easily even in places where the space for attaching the connection pin is narrow.
さらに、一側突起部の名さ寸法が他側突起部の
長さ寸法よりも大となり、連結ピンのねじ部がピ
ン部よりも大となるようにしたから、連結の解除
作業は連結ピンを一側突起部のねじ穴に取付けた
ままの状態で行なうことができ、相手方部材等の
交換時における分解、組立作業が容易となる。 Furthermore, since the length of the protrusion on one side is larger than the length of the protrusion on the other side, and the threaded part of the connecting pin is larger than the pin part, the work of releasing the connection is done using the connecting pin. This can be done while it is still attached to the screw hole of the protrusion on one side, making it easy to disassemble and assemble when replacing the mating member, etc.
第１図は本考案の実施例に係る一部破断の要部
側面図、第２図および第３図は従来技術に係り、
第２図は容量可変型斜軸式油圧ポンプの縦断面
図、第３図は第２図中の弁板とリンク機構を示す
一部破断の側面図である。
３１……リンク（リンク部材）、３１Ａ……一
側突起部、３１Ｂ……他側突起部、３１Ｃ……二
又部、３４……ピストンロツド（相手方部材）、
３４Ａ……差込部、３６……連結ピン、３２……
ねじ穴、３３……嵌合穴、３７……ねじ部、３８
……ピン部。
FIG. 1 is a side view of a partially broken main part according to an embodiment of the present invention, and FIGS. 2 and 3 are related to the prior art.
FIG. 2 is a longitudinal sectional view of the variable displacement oblique shaft type hydraulic pump, and FIG. 3 is a partially cutaway side view showing the valve plate and link mechanism in FIG. 2. 31...Link (link member), 31A...Protrusion on one side, 31B...Protrusion on the other side, 31C...Forked part, 34...Piston rod (opposite member),
34A...Insert part, 36...Connection pin, 32...
Screw hole, 33... Fitting hole, 37... Threaded part, 38
...Pin section.
Claims (1)
又部となつたリンク部材と、先端部が該リンク部
材の二又部に差し込まれる差込部となつた相手方
部材と、前記リンク部材の二又部と相手方部材の
差込部とを連結する連結ピンとからなるリンク部
材の連結装置において、前記リンク部材の二又部
は一側突起部にはねじ穴を形成すると共に、他側
突起部には該ねじ穴と同軸に嵌合穴を形成し、前
記相手方部材の差込部には嵌合穴を形成し、前記
連結ピンは頭部と軸部とからなり、該軸部を前記
リンク部材のねじ穴に螺合すべく、該軸部を前記
頭部側に位置したねじ部と該リンク部材の嵌合穴
と相手方部材の嵌合穴とに嵌合されるピン部とか
ら形成し、前記リンク部材の二又部はねじ穴が形
成された一側突起部の長さ寸法を嵌合穴が形成さ
れた他側突起部の長さ寸法よりも大となし、前記
連結ピンはねじ部の長さをピン部の長さよりも大
となし、相手方部材の分解時には前記ねじ穴とね
じ部との噛み合いを外さなくても、リンク部材と
の連結を解除しうるようにしたことを特徴とする
リンク部材の連結装置。 A link member whose distal end is a fork consisting of a protrusion on one side and a protrusion on the other side, a counterpart member whose distal end is an insertion portion that is inserted into the fork of the link member, and the link member. In a link member connecting device comprising a connecting pin that connects the forked portion of the link member and the insertion portion of the other member, the forked portion of the link member has a threaded hole formed in the protrusion on one side, and a screw hole formed in the protrusion on the other side. A fitting hole is formed in the part coaxially with the screw hole, and a fitting hole is formed in the insertion part of the mating member, and the connecting pin consists of a head and a shaft part, and the shaft part is connected to the shaft part. In order to be screwed into the threaded hole of the link member, the shaft portion is formed from a threaded portion located on the head side and a pin portion that is fitted into the fitting hole of the link member and the fitting hole of the mating member. In the bifurcated portion of the link member, the length of the protrusion on one side in which the screw hole is formed is larger than the length of the protrusion on the other side in which the fitting hole is formed, and the connecting pin has a screw hole. The length of the part is larger than the length of the pin part, so that the connection with the link member can be released without disengaging the threaded hole and the threaded part when disassembling the other member. A connecting device for link members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134116U JPH0542258Y2 (en) | 1988-10-14 | 1988-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988134116U JPH0542258Y2 (en) | 1988-10-14 | 1988-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0254916U JPH0254916U (en) | 1990-04-20 |
| JPH0542258Y2 true JPH0542258Y2 (en) | 1993-10-25 |
Family
ID=31392578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988134116U Expired - Lifetime JPH0542258Y2 (en) | 1988-10-14 | 1988-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542258Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156715A (en) * | 1981-07-16 | 1983-09-17 | リ−ヌ・トウロレ・エ・フイル | Pivotal support pin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59147334U (en) * | 1983-03-22 | 1984-10-02 | ソニー株式会社 | Pivotal structure for electronic equipment, etc. |
-
1988
- 1988-10-14 JP JP1988134116U patent/JPH0542258Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156715A (en) * | 1981-07-16 | 1983-09-17 | リ−ヌ・トウロレ・エ・フイル | Pivotal support pin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254916U (en) | 1990-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8347979B2 (en) | Motor assembly for pneumatic tool | |
| JPS63164584U (en) | ||
| JPH0565908A (en) | Linear driving device | |
| JPH0542258Y2 (en) | ||
| JP3414991B2 (en) | Disassembly jig for valve actuator | |
| EP1917450A2 (en) | Self aligning brake kit | |
| US2834297A (en) | Power transmission | |
| BR0107361A (en) | Inclined rotary shaft gas compressor | |
| KR20040073964A (en) | Actuator for driving valve | |
| JPH0428911B2 (en) | ||
| KR880000983B1 (en) | Oscillating piston motor | |
| JPH0156242B2 (en) | ||
| JP3836240B2 (en) | Actuator | |
| CN2174595Y (en) | Mechanical seal | |
| JP2002322903A (en) | Locker arm assembly body | |
| JP2005028478A (en) | Hand actuator | |
| US5775199A (en) | Rotary valve and directional valve combination | |
| KR100288941B1 (en) | Split type connecting rod of hermetic type compressor | |
| JPH0528390Y2 (en) | ||
| JPH0518481Y2 (en) | ||
| JP3350522B2 (en) | Single acting oscillating actuator | |
| KR960003357Y1 (en) | Manually operating device for air-pressure valve | |
| JP2005256793A (en) | Vacuum pump | |
| JPH0382881U (en) | ||
| KR19980034707A (en) | Compressor connecting rod and piston structure |