JP2012255536A - Holding device - Google Patents
Holding device Download PDFInfo
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- JP2012255536A JP2012255536A JP2011191171A JP2011191171A JP2012255536A JP 2012255536 A JP2012255536 A JP 2012255536A JP 2011191171 A JP2011191171 A JP 2011191171A JP 2011191171 A JP2011191171 A JP 2011191171A JP 2012255536 A JP2012255536 A JP 2012255536A
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- slit
- shaft hole
- shaft
- penetrating
- female screw
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000470 constituent Substances 0.000 abstract 1
- 230000005489 elastic deformation Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
- F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
- F16B7/0493—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming a crossed-over connection
Abstract
Description
本発明は、干渉せずに交差する2本の軸にそれぞれ摺動可能に嵌合した2つの軸を1箇所の締付け手段により差動的に二段階で前記2本の軸を把持する装置に関する。 The present invention relates to an apparatus for gripping two shafts differentially in two stages by two fastening shafts slidably fitted to two shafts intersecting each other without interference. .
計測機器の位置決め装置や工作機械の加工基準設定装置、あるいは棒状材からなる構造物において、交差する軸上を摺動可能な連結部品によって、それぞれの軸を所定の位置関係で固定する方法が多く用いられている。
しかし通常はそれぞれの軸を個別のねじで締付ける構造なので作業効率が悪いという問題があった。
There are many methods to fix each axis in a predetermined positional relationship by connecting parts that can slide on intersecting axes in a positioning device of a measuring instrument, a processing standard setting device of a machine tool, or a structure made of rod-shaped materials. It is used.
However, there is a problem that work efficiency is poor because each shaft is usually tightened with individual screws.
上記問題を解決する方法として、例えば特許文献1では、1個のねじによって並列する2個の支持軸を回動及び固定可能に連結した把持装置が考案されている。
しかし特許文献1の構造では、部品点数が多く高価になる点、2本の軸径が同一の場合でも基筒体5と第1締付筒12を太くする必要があるので無駄な大きさになる点、ほぼ同時に両方の軸が把持されるので、例えば、先ず高さを調節してその後水平方向の位置を調整する等の順を追った締付け作業ができないという問題があった。
As a method for solving the above problem, for example, Patent Document 1 has devised a gripping device in which two support shafts arranged in parallel by one screw are connected so as to be rotatable and fixed.
However, in the structure of Patent Document 1, the number of parts is high and the cost becomes high. Even when the two shaft diameters are the same, it is necessary to make the base cylinder 5 and the first fastening cylinder 12 thick, so that the size is wasted. Since both shafts are gripped at almost the same time, there is a problem in that it is impossible to perform a tightening operation in order such as first adjusting the height and then adjusting the horizontal position.
また特許文献2では、本発明とほぼ同じ作用効果を発揮するが、構成する部品(特にケース10)が製造しにくい形状であり、専用型による鋳造・鍛造以外では、加工時間も多大となり、少・中量生産には適していなかった。 In Patent Document 2, the same effects as those of the present invention are exhibited, but the components (particularly, the case 10) are difficult to manufacture, and the processing time is large except for casting / forging by a dedicated die, and the amount is small. -Not suitable for medium volume production.
本発明は1個のねじを締付けることによって、先ず第1の軸を把持し、更に前記のねじを締付けることによって第2の軸を把持する装置において、構成する部品の加工精度を向上し、かつ製造コストを低減したものである。 According to the present invention, in a device for first gripping the first shaft by tightening one screw and further gripping the second shaft by tightening the screw, the processing accuracy of the components to be configured is improved, and The manufacturing cost is reduced.
2本の軸を軸穴にそれぞれ摺動可能に挿入し、1つの締付け手段により、差動的に二段階で前記2本の軸を把持する装置であり、略四角柱状の部材(10)と、前記部材に螺合した締付けボルト(33)からなり、
前記部材には、上面(11)のほぼ中央に設けた前記締付けボルトと螺合するめねじ(18)と、正面(12)と背面(13)間を貫通する第2の軸穴(17)と、前記第2の軸穴より前記めねじから遠い側に、前記第2の軸穴と干渉しない位置に設けた、左側面(14)と右側面(15)間を貫通する第1の軸穴(16)と、前記正面と前記背面間を貫通するスリット群(20)が設けられ、該スリット群は、前記めねじと前記第2の軸穴の間を通り、かつ前記第2の軸穴の両横外側を通り下方に伸び、左右の下端部(22、23)が前記第1の軸穴の軸心近傍まで達する略門形スリット(21)と、前記第2の軸穴の一方の側部内周面(17a)と前記略門形スリットを繋ぐ短スリット(26)と、前記略門形スリット左部の第1軸穴干渉領域(24)から右に向かい、前記略門形スリット右部に達しない少なくとも1つの左スリット(27)と、前記略門形スリット右部の第1軸穴干渉領域(25)から左に向かい、前記略門形スリット左部に達しない少なくとも1つの右スリット(28)から成ることを特徴とする把持装置である。
A device that slidably inserts two shafts into shaft holes, and grips the two shafts differentially in two stages by one tightening means, and has a substantially square columnar member (10) , Comprising a fastening bolt (33) screwed onto the member,
The member includes a female screw (18) threadedly engaged with the fastening bolt provided substantially at the center of the upper surface (11), and a second shaft hole (17) penetrating between the front surface (12) and the rear surface (13). The first shaft hole penetrating between the left side surface (14) and the right side surface (15) is provided on the side farther from the female screw than the second shaft hole and at a position not interfering with the second shaft hole. (16) and a slit group (20) penetrating between the front surface and the back surface is provided, and the slit group passes between the female screw and the second shaft hole, and the second shaft hole. A substantially gate-shaped slit (21) extending downward through both lateral outer sides of the first and second lower ends (22, 23) to the vicinity of the axial center of the first shaft hole, and one of the second shaft holes A short slit (26) connecting the inner peripheral surface of the side portion (17a) and the substantially portal slit, and a first shaft hole at the left of the approximately portal slit. From the region (24) to the right, at least one left slit (27) that does not reach the right part of the substantially portal slit, and to the left from the first axial hole interference region (25) at the right part of the approximately portal slit The gripping device comprises at least one right slit (28) that does not reach the left part of the substantially portal slit.
1本の締付けボルトを締付けることにより、2本の軸を差動的に締付け固定することができるので、作業性が良い。 Since the two shafts can be differentially tightened and fixed by tightening one tightening bolt, workability is good.
2本の軸に対する位置決めを、順次行うことができるので、例えば、先ず左右方向位置を正確に決めてから、次に前後方向の位置を決める作業ができるので、1本のねじで二方向の位置決めが可能でありながら、精度の高い位置決めができる。 Positioning with respect to the two axes can be performed sequentially. For example, first, the position in the left-right direction can be accurately determined, and then the position in the front-rear direction can be determined next. Can be positioned with high accuracy.
専用部品が1個のため、軸間距離の精度、軸間角度の精度、軸穴精度を高めることが容易であり、低コストで製作可能である。
また、多品種少量生産にも容易に対応できる。
Since there is only one dedicated part, it is easy to increase the accuracy of the distance between the shafts, the accuracy of the angle between the shafts, and the shaft hole accuracy, and it can be manufactured at low cost.
In addition, it can easily handle high-mix low-volume production.
図1〜5を用いて本発明の基本的な構成を説明する。
図1は、本発明による把持装置によってほぼ直交する二軸を固定している状態を示した斜視図、図2は本把持装置の主要部材の正面図と右側面図である。
The basic configuration of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing a state in which two axes substantially orthogonal to each other are fixed by a gripping device according to the present invention, and FIG. 2 is a front view and a right side view of main members of the gripping device.
直方体状の部材10の下部に、第1の軸穴16が左側面14と右側面15間を貫通して設けられており、第1の軸穴の上部に第2の軸穴17が正面12と背面13間を貫通して設けられている。
また、第2の軸穴17と同じ方向に、第2の軸穴17からワイヤ放電加工装置等によりスリット群20の加工が行われ、斜線で示す弾性変形部19が構成される。
A first shaft hole 16 is provided in the lower part of the rectangular parallelepiped member 10 so as to penetrate between the left side surface 14 and the right side surface 15, and a second shaft hole 17 is formed on the front surface 12 above the first shaft hole. And the back surface 13 is provided.
Further, the slit group 20 is processed from the second shaft hole 17 in the same direction as the second shaft hole 17 by a wire electric discharge machine or the like, and an elastic deformation portion 19 indicated by oblique lines is configured.
図3は、弾性変形部19の作動説明図である。
締付ボルト33を締めると、荷重Wが弾性変形部の上面ほぼ中央に、下方向に作用する。
荷重Wにより、第2の軸穴17は短スリット26の存在により上下方向の内径が減少しやすくなっているので、挿入された第2軸とのクリアランス(通常は0.05mm程度)が無くなると第2軸が固定される。
荷重に対する上下方向の内径の変化量は、例えば、軸穴直径が16mmで、短スリット26の反対側面の肉厚Aが3.5mmで、部材10の厚さが24mmとすると、等価ばね定数は、21000N/mm程度になる。
すなわち、荷重Wが約1050Nに達すると、第2の軸穴の上下方向の内径が約0.05mm減少し、第2軸が固定され始める。
FIG. 3 is an operation explanatory view of the elastic deformation portion 19.
When the tightening bolt 33 is tightened, the load W acts downward on the substantially upper surface of the elastic deformation portion.
Due to the load W, the second shaft hole 17 is likely to have a reduced inner diameter in the vertical direction due to the presence of the short slit 26, so that there is no clearance (usually about 0.05 mm) from the inserted second shaft. The second shaft is fixed.
For example, if the shaft hole diameter is 16 mm, the wall thickness A on the opposite side of the short slit 26 is 3.5 mm, and the thickness of the member 10 is 24 mm, the equivalent spring constant is: 21000 N / mm.
That is, when the load W reaches about 1050 N, the vertical inner diameter of the second shaft hole decreases by about 0.05 mm, and the second shaft starts to be fixed.
第1の軸穴部分には、左スリット27と右スリット28が、ほぼ水平方向に、左右交互に段違いに設けられている。
左右のスリットが設けられた部分は、コイルばねのような作用をする。
例えば図3に於いて、左右のスリットの長さがそれぞれ21mm、肉厚Bが2mm、スリットの間隔Cが1.5mmで、第1の軸穴16の両側部の肉厚を片側4mmとみなすと、等価ばね定数は、180N/mm程度になる。
すなわち、荷重Wが約9Nに達すると、第1の軸穴の上下方向の内径が約0.05mm減少し、第1軸が固定され始める。
In the first shaft hole portion, left slits 27 and right slits 28 are provided in steps that are alternately left and right in a substantially horizontal direction.
The portion provided with the left and right slits acts like a coil spring.
For example, in FIG. 3, the length of the left and right slits is 21 mm, the thickness B is 2 mm, the slit interval C is 1.5 mm, and the thickness of both sides of the first shaft hole 16 is 4 mm on one side. The equivalent spring constant is about 180 N / mm.
That is, when the load W reaches about 9N, the inner diameter in the vertical direction of the first shaft hole decreases by about 0.05 mm, and the first shaft starts to be fixed.
部材10の上部には、めねじ18が加工されている。
加工の都合上、弾性変形部19の上面には、めねじの下穴加工による凹部(図示しない)が残るので、めねじ加工後に凹部の内径を広げるか、締付ボルト33の先端部径を細くする必要がある。
A female screw 18 is processed on the upper part of the member 10.
For the convenience of processing, a concave portion (not shown) is formed on the upper surface of the elastic deformation portion 19 by machining a female screw, so that the inner diameter of the concave portion is increased after the female screw processing or the tip portion diameter of the tightening bolt 33 is increased. It is necessary to make it thinner.
以上の構成において、図1に示したように、部材10に設けた第1の軸穴16に第1軸31を通し、第2の軸穴17に第2軸32を通した状態で、締付けボルト33を締めると、まず第1の軸穴16周囲の左右スリット部が弾性変形し、ボルトの軸力が9N以上になると、部材10の第1の軸穴の上面部と下面部の間で第1軸31を把持する。 In the above configuration, as shown in FIG. 1, the first shaft 31 is passed through the first shaft hole 16 provided in the member 10 and the second shaft 32 is passed through the second shaft hole 17. When the bolt 33 is tightened, first, the left and right slit portions around the first shaft hole 16 are elastically deformed. When the axial force of the bolt becomes 9 N or more, the first shaft hole of the member 10 is between the upper surface portion and the lower surface portion. The first shaft 31 is gripped.
さらに締付けボルト33を締めると、弾性変形部19における短スリットの反対側の部分が弾性変形し、第2の軸穴17の上下方向の内径が小さくなり、ボルトの軸力が1050N以上になると、第2軸32を締付け、これを把持する。 When the tightening bolt 33 is further tightened, the portion on the opposite side of the short slit in the elastic deformation portion 19 is elastically deformed, the inner diameter in the vertical direction of the second shaft hole 17 is reduced, and when the axial force of the bolt becomes 1050 N or more, The second shaft 32 is tightened and gripped.
上記のように締付けボルトを締めることにより、第1軸と第2軸の両方を締付けることができ、しかも、わずかな締付力で先ず第1軸が固定されて、さらにボルトを締付けることにより第2軸が固定されるので、順次位置を調節しながら高精度の位置決めをすることができる。 By tightening the tightening bolt as described above, both the first shaft and the second shaft can be tightened, and the first shaft is first fixed with a slight tightening force, and then the bolt is further tightened. Since the two axes are fixed, high-accuracy positioning can be performed while sequentially adjusting the positions.
図4に示したように、略門形スリット21は、上部の水平部分と、左右の垂直部分の間は円弧で結んでもよい。また円弧の代わりに斜線で結んでもよい。
また、左スリット22と右スリット23は各1つでも良く、スリット長さや、スリット間隔を選べば、等価ばね定数を適切に設定することができる
また、スリットの幅は、ワイヤ放電加工機で加工可能な0.3mm程度とすることにより、万が一、軸を挿入せずに締付ボルトを締め付けても、材料が降伏点に達する前に変形量を制限することもできる。
As shown in FIG. 4, the substantially portal slit 21 may be connected by an arc between the upper horizontal portion and the left and right vertical portions. Moreover, you may connect with a diagonal line instead of a circular arc.
The left slit 22 and the right slit 23 may be one each, and if the slit length and the slit interval are selected, the equivalent spring constant can be set appropriately. The slit width is processed by a wire electric discharge machine. Even if the fastening bolt is tightened without inserting the shaft, the amount of deformation can be limited before the material reaches the yield point.
図5は、第1軸と第2軸の交差角度を75度程度に設定した場合の平面図である。
本発明による把持装置の主要部品は1つであるため、直角以外の交差角度にも、比較的容易に、かつ精度良く対応することができる。
すなわち、2つの軸穴とめねじ加工を行った後、ワイヤ放電加工機に傾斜した状態でセットし、自動運転することで、セット換えすることなしに、図5に示した直交以外の2軸把持装置を容易に製作することができる。
FIG. 5 is a plan view when the intersection angle between the first axis and the second axis is set to about 75 degrees.
Since there is one main part of the gripping device according to the present invention, it is possible to deal with crossing angles other than a right angle relatively easily and with high accuracy.
In other words, after two shaft holes and female threads are machined, they are set in an inclined state on a wire electric discharge machine and automatically operated, so that the two-axis grips other than orthogonal shown in FIG. The device can be easily manufactured.
1 本発明による把持装置
10 部材
11 部材の上面
12 部材の正面
13 部材の背面
14 部材の左側面
15 部材の右側面
16 第1の軸穴
17 第2の軸穴
17a 第2の軸穴の側部内周面
18 めねじ
19 弾性変形部
20 スリット群
21 略門形スリット
22 略門形スリットの左下端部
23 略門形スリットの右下端部
24 略門形スリット左部の第1軸穴干渉領域
25 略門形スリット右部の第1軸穴干渉領域
26 短スリット
27 左スリット
28 右スリット
31 第1軸
32 第2軸
33 締付けボルト
W ボルトによる締付荷重
A 第2の軸穴の短スリットの反対側面の厚さ
B 左スリットの端部と略門形スリット右部との距離
C 左スリットと右スリットの距離
θ 第1軸と第2軸の交差角度
DESCRIPTION OF SYMBOLS 1 Grasping apparatus 10 by this invention Member 11 Upper surface 12 Member front 13 Member back 14 Member left side 15 Member right side 16 Member right side 16 First axial hole 17 Second axial hole 17a Second axial hole side Internal peripheral surface 18 Internal thread 19 Elastic deformation portion 20 Slit group 21 Substantially portal slit 22 Lower left end 23 of approximately portal slit 23 Right lower end 24 of approximately portal slit First shaft hole interference region at approximately left end of approximately slit 25 The first shaft hole interference area 26 at the right portion of the substantially portal slit 26 The short slit 27 The left slit 28 The right slit 31 The first shaft 32 The second shaft 33 The tightening bolt W The tightening load W by the bolt A The short slit of the second shaft hole Opposite side thickness B Distance between the end of the left slit and the right part of the substantially portal slit C Distance between the left slit and the right slit θ Crossing angle between the first axis and the second axis
Claims (1)
前記部材には、上面(11)のほぼ中央に設けた前記締付けボルトと螺合するめねじ(18)と、正面(12)と背面(13)間を貫通する第2の軸穴(17)と、前記第2の軸穴より前記めねじから遠い側に、前記第2の軸穴と干渉しない位置に設けた、左側面(14)と右側面(15)間を貫通する第1の軸穴(16)と、前記正面と前記背面間を貫通するスリット群(20)が設けられ、該スリット群は、前記めねじと前記第2の軸穴の間を通り、かつ前記第2の軸穴の両横外側を通り下方に伸び、左右の下端部(22、23)が前記第1の軸穴の軸心近傍まで達する略門形スリット(21)と、前記第2の軸穴の一方の側部内周面(17a)と前記略門形スリットを繋ぐ短スリット(26)と、前記略門形スリット左部の第1軸穴干渉領域(24)から右に向かい、前記略門形スリット右部に達しない少なくとも1つの左スリット(27)と、前記略門形スリット右部の第1軸穴干渉領域(25)から左に向かい、前記略門形スリット左部に達しない少なくとも1つの右スリット(28)から成ることを特徴とする把持装置。 A device that slidably inserts two shafts into shaft holes, and grips the two shafts differentially in two stages by one tightening means, and has a substantially square columnar member (10) , Comprising a fastening bolt (33) screwed onto the member,
The member includes a female screw (18) threadedly engaged with the fastening bolt provided substantially at the center of the upper surface (11), and a second shaft hole (17) penetrating between the front surface (12) and the rear surface (13). The first shaft hole penetrating between the left side surface (14) and the right side surface (15) is provided on the side farther from the female screw than the second shaft hole and at a position not interfering with the second shaft hole. (16) and a slit group (20) penetrating between the front surface and the back surface is provided, and the slit group passes between the female screw and the second shaft hole, and the second shaft hole. A substantially gate-shaped slit (21) extending downward through both lateral outer sides of the first and second lower ends (22, 23) to the vicinity of the axial center of the first shaft hole, and one of the second shaft holes A short slit (26) connecting the inner peripheral surface of the side portion (17a) and the substantially portal slit, and a first shaft hole at the left of the approximately portal slit. From the region (24) to the right, at least one left slit (27) that does not reach the right part of the substantially portal slit, and to the left from the first axial hole interference region (25) at the right part of the approximately portal slit The gripping device comprises at least one right slit (28) which does not reach the left part of the substantially portal slit.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011191171A JP5322015B2 (en) | 2011-09-02 | 2011-09-02 | Gripping device |
PCT/JP2012/072154 WO2013031945A1 (en) | 2011-09-02 | 2012-08-31 | Holding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2011191171A JP5322015B2 (en) | 2011-09-02 | 2011-09-02 | Gripping device |
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JP2012255536A true JP2012255536A (en) | 2012-12-27 |
JP5322015B2 JP5322015B2 (en) | 2013-10-23 |
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JP2011191171A Active JP5322015B2 (en) | 2011-09-02 | 2011-09-02 | Gripping device |
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JP (1) | JP5322015B2 (en) |
WO (1) | WO2013031945A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105531512A (en) * | 2013-10-23 | 2016-04-27 | 加特可株式会社 | Control device for continuously variable transmission |
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GB2568216A (en) * | 2017-08-04 | 2019-05-15 | Earls Michael | Neck rail systems for animal stalls |
CN109386523A (en) * | 2018-10-10 | 2019-02-26 | 高飞 | A kind of wet type repairs a mouthful machine angle coupling |
CN114483733A (en) * | 2022-02-10 | 2022-05-13 | 浙江奥展航空科技有限公司 | High mechanical anti-loosening fastening structure of security |
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JPS581433U (en) * | 1981-06-24 | 1983-01-07 | 株式会社島津製作所 | Fixture |
JPS60128009U (en) * | 1984-02-06 | 1985-08-28 | 名古屋機工株式会社 | Rod clamp device |
JP3158309U (en) * | 2010-01-13 | 2010-03-25 | 智司 山本 | Biaxial clamping device |
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JPS581433U (en) * | 1981-06-24 | 1983-01-07 | 株式会社島津製作所 | Fixture |
JPS60128009U (en) * | 1984-02-06 | 1985-08-28 | 名古屋機工株式会社 | Rod clamp device |
JP3158309U (en) * | 2010-01-13 | 2010-03-25 | 智司 山本 | Biaxial clamping device |
WO2011086835A1 (en) * | 2010-01-13 | 2011-07-21 | Yamamoto Satoshi | Two-shaft clamp device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105531512A (en) * | 2013-10-23 | 2016-04-27 | 加特可株式会社 | Control device for continuously variable transmission |
CN105531512B (en) * | 2013-10-23 | 2017-07-07 | 加特可株式会社 | The control device of buncher |
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JP5322015B2 (en) | 2013-10-23 |
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