JP2539875Y2 - Planer knife fixing device - Google Patents

Planer knife fixing device

Info

Publication number
JP2539875Y2
JP2539875Y2 JP7754591U JP7754591U JP2539875Y2 JP 2539875 Y2 JP2539875 Y2 JP 2539875Y2 JP 7754591 U JP7754591 U JP 7754591U JP 7754591 U JP7754591 U JP 7754591U JP 2539875 Y2 JP2539875 Y2 JP 2539875Y2
Authority
JP
Japan
Prior art keywords
blade
centrifugal
groove
fixing plate
slope
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
Application number
JP7754591U
Other languages
Japanese (ja)
Other versions
JPH0518802U (en
Inventor
寿徳 松下
Original Assignee
株式会社日立工機原町
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 株式会社日立工機原町 filed Critical 株式会社日立工機原町
Priority to JP7754591U priority Critical patent/JP2539875Y2/en
Publication of JPH0518802U publication Critical patent/JPH0518802U/en
Application granted granted Critical
Publication of JP2539875Y2 publication Critical patent/JP2539875Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は、遠心力により刃物を固
定するかんな盤の刃物固定装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knife fixing device for a planer board which fixes a knife by centrifugal force.

【0002】[0002]

【従来の技術】従来技術を図3を用いて説明する。従
来、刃物をかんな胴に固定する刃物固定装置に実開平3
−20104号公報がある。かんな胴11の外周面の開
口部に向かうにつれ狭くなる刃物収納溝12を形成し、
刃物収納溝12内には左側面に当接する刃物13と、刃
物13の裏面と当接する裏刃14と、開口部12dに向
かうにつれ狭くなる斜面を持ち、この 斜面の一方が裏刃
14の側面に摺動自在に当接する遠心固定板15が埋設
されている。裏刃14の下端に横方向に突出するよう形
成したあご部14aを、刃物収納溝12に形成したT溝
12aに挿入することにより、外周方向に裏刃14が抜
け出さないように保持される。T溝12aの上面12b
はあご部14aの上面14bが当接したとき、刃物13
の刃先が所定の位置に位置決めされるように構成されて
いる。つまり、T溝12aの上面12bが刃物13の出
張り量の基準面となる。裏刃14、遠心固定板15下端
に収納したバネ17,18で、裏刃14、遠心固定板1
5を開口部12dに向けて付勢している。従って、あご
部14aの上面14bは、T溝12aの上面12bに位
置決めされるとともに、裏刃14は遠心固定板15の斜
面からの押圧力を受けて刃物13を刃物収納溝12の左
側面に押し付ける。かんな胴11が回転すると、遠心力
が発生し、遠心固定板15により刃物13の固定力は増
大する。
2. Description of the Related Art A conventional technique will be described with reference to FIG . Conventionally, the blade fixing device that fixes the blade to the planer trunk has
No. -20104. Opening the outer peripheral surface of the plane 11
Forming a blade storage groove 12 that becomes narrower toward the mouth,
A blade 13 that contacts the left side surface and a blade
The back blade 14 that contacts the back surface of the object 13 and the opening 12d.
It has a slope that gradually narrows, and one of the slopes is a back blade
A centrifugal fixing plate 15 slidably abutting on the side surface of 14 is embedded
Have been. Shaped to project laterally at the lower end of the back blade 14
A T-groove formed with the formed jaw portion 14a in the blade storage groove 12.
12a, the back blade 14 is pulled out in the outer circumferential direction.
It is held so that it does not break out. Upper surface 12b of T groove 12a
When the upper surface 14b of the jaw portion 14a comes into contact, the blade 13
Is configured so that the cutting edge of the
I have. That is, the upper surface 12b of the T groove 12a
This is the reference plane for the amount of tension. Back blade 14, centrifugal fixing plate 15 lower end
Back blade 14, centrifugal fixing plate 1 with springs 17 and 18 stored in
5 is urged toward the opening 12d. Therefore, the chin
The upper surface 14b of the portion 14a is located on the upper surface 12b of the T groove 12a.
In addition to being fixed, the back blade 14 is
The blade 13 is moved to the left of the blade storage groove 12
Press against the side. When the plane 11 rotates, the centrifugal force
Is generated, and the fixing force of the blade 13 is increased by the centrifugal fixing plate 15.
Great.

【0003】[0003]

【考案が解決しようとする課題】従来、刃物13セット
時の取付精度(刃物13の突出量、軸心に対する平行
度)は、あご部14aの上面14b及びT溝12aの上
面12bの加工精度で決まるが、裏刃14、T溝12a
の形状が複雑なため、上面12b,14bは研削加工な
どの精度出し加工が困難なため、加工精度のばらつきで
刃物のセット高さに誤差が生じていた。また、裏刃14
は摩耗するので定期的な交換が必要だが、従来構成では
T溝12aにあご部14aがひっかかり、裏刃14を外
周方向へ取り外すことができない。したがって、交換時
には、かんな胴11を機体から外し、かんな胴11の軸
方向に引き出して交換しなければならなかった。本考案
の目的は、裏刃及び刃物取付溝の基準面の加工を容易に
できる形状にして刃物の取付精度を向上させ、また、裏
刃を外周方向から取り出せる刃物固定装置を提供するも
のである
[Problems to be Solved by the Invention] Conventionally, 13 sets of blades
Mounting accuracy at the time (projection of the blade 13, parallel to the axis)
Degree) is above the upper surface 14b of the jaw portion 14a and the T groove 12a.
Although determined by the processing accuracy of the surface 12b, the back blade 14, the T-groove 12a
The upper surface 12b, 14b is not ground because the shape of
Because it is difficult to perform any precision processing,
An error occurred in the setting height of the blade. Also, the back blade 14
Is worn and needs to be replaced regularly, but with the conventional configuration
The jaw portion 14a is caught in the T groove 12a, and the back blade 14 is removed.
Cannot be removed in the circumferential direction. Therefore, when replacing
, Remove the planer trunk 11 from the fuselage
Had to be pulled out and replaced in the direction. An object of the present invention may have a shape capable of processing the reference surface of the back edge and the cutter fitting groove easily improve the mounting accuracy of the tool also provides a tool fixing device put out take back edge from the outer peripheral direction
It is .

【0004】[0004]

【課題を解決するための手段】上記目的を達成するため
に、本考案は、かんな胴の軸方向に形成した刃物収納溝
を複数個外周上に設け、前記刃物収納溝内に裏刃を介し
て遠心固定板の遠心力で刃物を圧接して固定するかんな
盤の刃物固定装置において、前記刃物収納溝は、第1側
面と、前記第1側面に対向しかんな胴の外周面の開口部
に向かうにつれて狭くなる方向に傾斜させた第2側面
と、刃物の位置決めをする基準面となる底面とからな
り、前記刃物収納溝内には開口部に向かうにつれて相互
間隔が小さくなる一対の対向斜面を持ち、一方の斜面は
第2側面に、もう一方の斜面を裏刃に当接し、バネで外
周方向へ付勢された遠心固定板と、前記遠心固定板に当
接する面と刃物に係合する係合部を形成するととも
その同じ面に刃物収納溝の第1側面に当接する面
前記刃物収納溝の底面と当接する底面とからなる裏
刃と、前記裏刃の係合部に係合し第1側面に当接する刃
物とを備え、第1側面と、裏刃に当接する遠心固定板の
斜面とからなる角度θ 1 はかんな胴の外周方向に頂点を
持つ鋭角とし、角度θ 1 と前記遠心固定板の一対の対向
斜面の角度θ 2 との関係をθ 1 <θ 2 としたものである。
In order to achieve the above object, the present invention provides a plurality of blade storage grooves formed in the planer cylinder in the axial direction on the outer periphery, and a back blade is inserted into the blade storage groove. In the knife fixing device for a planer board which presses and fixes the knife by the centrifugal force of the centrifugal fixing plate, the knife accommodating groove is provided on the first side.
Surface and an opening in the outer peripheral surface of the plane body facing the first side surface
Second side inclined in a direction that becomes narrower toward
Mutual As the consists of a bottom surface serving as a reference surface for the positioning of the blade, the said blade receiving groove toward the opening
It has a pair of opposing slopes where the distance is small, and one slope is
On the second side, abut the other slope against the back blade and use a spring to
A centrifugal wedge which is urged in the circumferential direction, and the surface contacting with the centrifugal wedge, so as to form an engagement portion engaged on the tool, surface contacting the first side of the blade housing groove to the same plane And a back blade comprising a bottom surface in contact with the bottom surface of the blade storage groove, and a blade engaged with the engaging portion of the back blade and in contact with the first side surface.
The first side and the centrifugal fixing plate abutting against the back blade
The angle theta 1 formed of a slope vertex in the outer circumferential direction of the planing cylinder
And acute angle with the pair of opposed angles theta 1 and the centrifugal wedge
The relationship with the angle θ 2 of the slope is θ 1 2 .

【0005】[0005]

【作用】上記のように構成された刃物固定装置は、かん
な胴を回転すると、遠心固定板は遠心力で外方に飛び出
す。その時、遠心固定板は裏刃を刃物収納溝の基準面側
と刃物側へ押圧するので、刃物は位置決め固定される。
刃物及び裏刃を取外す場合は、遠心固定板を上方からた
たき、刃物の固定を解除し、遠心固定板を固定装置で押
し下げ、裏刃と刃物収納溝の刃物当接面の間に空間を設
けて、刃物を外周方向から取り出し、その次に、裏刃を
取り出す。
In the blade fixing device constructed as described above, when the planer cylinder is rotated, the centrifugal fixing plate jumps out by centrifugal force. At this time, the centrifugal fixing plate presses the back blade toward the reference surface side and the blade side of the blade accommodating groove, so that the blade is positioned and fixed.
To remove the blade and back blade, tap the centrifugal fixing plate from above, release the fixing of the blade, push down the centrifugal fixing plate with the fixing device, and provide a space between the back blade and the blade contact surface of the blade storage groove. Then, the blade is taken out from the outer peripheral direction, and then the back blade is taken out.

【0006】[0006]

【実施例】本考案の実施例を図1及び図2により説明す
る。図1はかんな胴の刃物取付け部の断面図、図2は図
1で遠心固定板を押し下げた断面図である。図におい
て、かんな胴1の軸方向に刃物収納溝2を複数個外周上
に形成する。刃物収納溝2は、第1側面2aと、この第
1側面2aに対面し、かつ、かんな胴1の軸心から外周
面の開口部2dに向かうにつれて、第1側面2aとの間
隔が狭くなる傾斜面を持つ第2側面2b、基準面2c
(底面)とからなり、ほぼ凹形に 形成されている。な
お、第1側面2aと基準面2cは直角に成形している。
刃物収納溝2中には、第1側面2aに当接する刃物3
と、この刃物3の裏面の係合溝3aに当接して、刃物3
を位置決めする係合部4a、下部に第1側面2aと当接
する側面4bと、基準面2cに当接する底面4cを備え
た裏刃4と、開口部2dに向かうにつれて、相互間隔が
小さくなる一対の対向斜面5a,5bを持ち、一方の斜
面5aは裏刃4に摺動自在に当接し、他方の斜面5bは
第2側面2bに当接する遠心固定板5とを収納してい
る。刃物3は裏刃4の底面4cと当接した基準面2cか
らの寸法で刃物3の突出量が規定される。遠心固定板5
の底面と基準面2cとの間にはバネ6が配設され、遠心
固定板5を外周方向へ向けて付勢している。 裏刃背面角
θ 1 (第1側面2aと遠心固定板5の斜面5aとからな
る角度)は外周方向に頂点を持つ鋭角とし、また、裏刃
背面角θ 1 と遠心固定板背面角θ 2 (遠心固定板5の一対
の対向斜面5a,5bの角度)は、遠心固定板5の遠心
力で遠心固定板5が外方に飛び出したとき、遠心固定板
5が裏刃4を基準面2c側と刃物3側へ押圧するよう
に、θ 1 とθ 2 との関係をθ 1 <θ 2 としている。上記構成
において、刃物3の固定方法について説明すると、遠心
固定板5と裏刃4を刃物収納溝2内へ入れ、遠心固定板
5を図示しないマグネット式の固定装置で押し下げた状
態で、刃物収納溝2の第1側面2aと裏刃4との間に刃
物3を入れ、係合溝3aに係合部4aを係止する。係止
後、マグネット式固定装置を解除すると、遠心固定板5
はバネ6により押し上げられ、遠心固定板5は裏刃4を
刃物収納溝2の基準面2c側と刃物3側へ押圧し、裏刃
4は遠心固定板5の斜面5aからの押圧力を受けて刃物
3を刃物収納溝2の第1側面2aに押し付け、刃物3は
仮固定される。次に、かんな胴1を回転すると、遠心力
で遠心固定板5はさらに外周方向に飛び出し、刃物3は
裏刃4を介し固定される。これにより、裏刃4は基準面
2cに押し付けられているため、刃物3は所定の突出量
で位置決めされる。刃物3を取外す場合は、遠心固定板
5を上方からたたき、刃物3の固定を解除し、図2に示
すように、固定装置で遠心固定板5を軸心側へ押し込む
と、裏刃4と第1側面2aとの間に空間ができ、その隙
間量は係合溝3aの溝深さより大き くなる。裏刃4と第
1側面2aとの間に空間ができた状態で、刃物3を外周
方向(図2において矢印A方向)から取り出す。また、
裏刃4を定期的な交換でかんな胴1から取外す場合は、
刃物3を取外せば、そのまま、裏刃4も外周方向から抜
き取ることができる。 刃物収納溝2はほぼ凹形に形成さ
れ、刃物収納溝2の底面が刃物3の基準面2cとなり、
また、裏刃4は略ロ形で基準面2cと当接する底面も平
らに形成されているので、基準面2cの研削加工を容易
に行えるため、刃物3突出量の寸法誤差を小さくでき、
刃物3の取付精度の高くすることができる。
Example of Embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of a blade mounting portion of a planer trunk , and FIG. 2 is a diagram.
It is sectional drawing which pushed down the centrifugal fixing plate in FIG. In the drawing, a plurality of blade storage grooves 2 are provided on the outer circumference in the axial direction of the planer trunk 1.
Formed. The blade storage groove 2 has a first side surface 2a and the
One side surface 2a, and the outer periphery from the axis of the plane 1
Between the first side surface 2a toward the opening 2d of the surface
The second side surface 2b and the reference surface 2c each having an inclined surface with a narrow gap.
(Bottom surface), and is formed in a substantially concave shape . What
The first side surface 2a and the reference surface 2c are formed at right angles.
In the blade storage groove 2, the blade 3 is in contact with the first side surface 2 a.
Abuts on the engagement groove 3a on the back surface of the blade 3 so that the blade 3
Engaging portion 4a for positioning the first side surface 2a at the lower portion
And a bottom surface 4c contacting the reference surface 2c.
The distance between the back blade 4 and the opening 2d
It has a pair of opposed slopes 5a and 5b that become smaller,
The surface 5a slidably abuts the back blade 4 and the other slope 5b is
The centrifugal fixing plate 5 that contacts the second side surface 2b is housed.
You. The protrusion amount of the blade 3 is defined by a dimension from the reference surface 2c in contact with the bottom surface 4c of the back blade 4. Centrifugal fixed plate 5
A spring 6 is disposed between the bottom surface of the
The fixing plate 5 is urged toward the outer periphery. Back blade back angle
θ 1 (from the first side surface 2a and the slope 5a of the centrifugal fixing plate 5).
Angle) is an acute angle with a vertex in the outer circumferential direction.
Back angle θ 1 and centrifugal fixing plate back angle θ 2 (a pair of centrifugal fixing plates 5
Angle of the opposing slopes 5a, 5b)
When the centrifugal fixing plate 5 protrudes outward by force, the centrifugal fixing plate 5
5 presses the back blade 4 toward the reference surface 2 c and the blade 3.
In addition, the relationship between θ 1 and θ 2 is set to θ 1 2 . In the above configuration, a method of fixing the blade 3 will be described. The centrifugal fixing plate 5 and the back blade 4 are put into the blade storing groove 2, and the centrifugal fixing plate 5 is pushed down by a magnet type fixing device (not shown). The blade 3 is inserted between the first side surface 2a of the groove 2 and the back blade 4, and the engaging portion 4a is locked in the engaging groove 3a. After locking, when the magnet type fixing device is released, the centrifugal fixing plate 5
Is pushed up by a spring 6, and the centrifugal fixing plate 5
Pressing the blade storage groove 2 toward the reference surface 2c and the blade 3 side,
4 is a blade receiving a pressing force from a slope 5a of the centrifugal fixing plate 5.
3 is pressed against the first side surface 2a of the blade storage groove 2.
Temporarily fixed. Next, when the planer trunk 1 is rotated, the centrifugal force
As a result, the centrifugal fixing plate 5 protrudes further in the outer peripheral direction, and the blade 3 is fixed via the back blade 4 . As a result, the back blade 4 is
2c, the blade 3 has a predetermined protrusion amount.
Is positioned. When the blade 3 is to be removed, the centrifugal fixing plate 5 is tapped from above to release the fixing of the blade 3, and as shown in FIG.
Push the centrifugal fixing plate 5 toward the shaft center with the fixing device
And a space is formed between the back blade 4 and the first side surface 2a,
During amount greater than the groove depth of the engagement groove 3a Kunar. Back blade 4 and No.
With the space between the first side surface 2a and the cutting tool 3,
It is taken out from the direction (the direction of arrow A in FIG. 2). Also,
When removing the back blade 4 from the plane 1 by regular replacement,
If the blade 3 is removed, the back blade 4 is also pulled out from the outer peripheral direction.
Can be wiped. The blade storage groove 2 is formed in a substantially concave shape.
The bottom surface of the blade storage groove 2 becomes the reference surface 2c of the blade 3,
In addition, the back blade 4 has a substantially rectangular shape, and the bottom surface in contact with the reference surface 2c is flat.
Are formed so that the reference surface 2c can be easily ground.
Can reduce the dimensional error of the blade 3 protrusion amount,
The mounting accuracy of the blade 3 can be increased.

【0007】[0007]

【考案の効果】本考案は、上記した構成により、刃物収
納溝は凹形に形成され、裏刃は略ロ形に形成されている
ので、基準面の加工が容易に行え、刃物突出量の寸法誤
差を小さくでき、精度の高い刃物固定装置を提供するこ
とができる。また、遠心固定板を押し下げることによ
り、裏刃を外周方向から出入れができるので、かんな胴
を機体から取り外す必要はなく、交換を簡単にすること
ができる。
[Effect of the invention The present invention is, with the configuration described above, tool receiving groove is formed in a concave, Uraha so formed in substantially square shape, processing of the reference surface can be easily performed, the blade protruding amount A dimensional error can be reduced, and a highly accurate blade fixing device can be provided. In addition, by pushing down the centrifugal fixing plate, the back blade can be moved in and out from the outer peripheral direction, so that it is not necessary to remove the planer trunk from the body, and the replacement can be simplified.

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

【図1】本考案のかんな胴の刃物取付部の断面図であ
る。
FIG. 1 is a cross-sectional view of a knife mounting portion of a planer trunk according to the present invention.

【図2】図1で遠心固定板を押し下げた断面図である。 FIG. 2 is a cross-sectional view of FIG . 1 in which a centrifugal fixing plate is pushed down.

【図3】FIG. 3 従来の刃物取付部の断面図である。It is sectional drawing of the conventional blade attachment part.

【符号の説明】1…かんな胴、2…刃物収納溝、2a…第1側面、2b
…第2側面、2c…基準面、3…刃物、4…裏刃、4c
…底面、5…遠心固定板、5a,5b…斜面、6…バ
ネ。
[Description of Signs ] 1 ... Planer trunk, 2 ... Blade storage groove, 2a ... First side surface, 2b
... Second side surface, 2c ... Reference surface, 3 ... Cutter, 4 ... Back blade, 4c
... bottom surface, 5 ... centrifugal fixing plate, 5a, 5b ... slope, 6 ... bar
Ne.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 かんな胴の軸方向に形成した刃物収納溝
を複数個外周上に設け、前記刃物収納溝内に裏刃を介し
て遠心固定板の遠心力で刃物を圧接して固定するかんな
盤の刃物固定装置において、前記刃物収納溝は、第1側
面と、前記第1側面に対向しかんな胴の外周面の開口部
に向かうにつれて狭くなる方向に傾斜させた第2側面
と、刃物の位置決めをする基準面となる底面とからな
り、前記刃物収納溝内には開口部に向かうにつれて相互
間隔が小さくなる一対の対向斜面を持ち、一方の斜面は
第2側面に、もう一方の斜面を裏刃に当接し、バネで外
周方向へ付勢された遠心固定板と、前記遠心固定板に当
接する面と刃物に係合する係合部を形成するととも
その同じ面に刃物収納溝の第1側面に当接する面
前記刃物収納溝の底面と当接する底面とからなる裏
刃と、前記裏刃の係合部に係合し第1側面に当接する刃
物とを備え、第1側面と、裏刃に当接する遠心固定板の
斜面とからなる角度θ 1 はかんな胴の外周方向に頂点を
持つ鋭角とし、角度θ 1 と前記遠心固定板の一対の対向
斜面の角度θ 2 との関係をθ 1 <θ 2 としたことを特徴と
するかんな盤の刃物固定装置。
1. A planer in which a plurality of blade accommodating grooves formed in an axial direction of a planer cylinder are provided on the outer periphery, and the blades are pressed into and fixed to the blade accommodating grooves by a centrifugal force of a centrifugal fixing plate via a back blade. In the blade fixing device for a board, the blade accommodating groove is provided on a first side.
Surface and an opening in the outer peripheral surface of the plane body facing the first side surface
Second side inclined in a direction that becomes narrower toward
Mutual As the consists of a bottom surface serving as a reference surface for the positioning of the blade, the said blade receiving groove toward the opening
It has a pair of opposing slopes where the distance is small, and one slope is
On the second side, abut the other slope against the back blade and use a spring to
A centrifugal wedge which is urged in the circumferential direction, and the surface contacting with the centrifugal wedge, so as to form an engagement portion engaged on the tool, surface contacting the first side of the blade housing groove to the same plane And a back blade comprising a bottom surface in contact with the bottom surface of the blade storage groove, and a blade engaged with the engaging portion of the back blade and in contact with the first side surface.
The first side and the centrifugal fixing plate abutting against the back blade
The angle theta 1 formed of a slope vertex in the outer circumferential direction of the planing cylinder
And acute angle with the pair of opposed angles theta 1 and the centrifugal wedge
A planer knife fixing device , characterized in that the relationship with the slope angle θ 2 is θ 1 2 .
JP7754591U 1991-08-30 1991-08-30 Planer knife fixing device Expired - Lifetime JP2539875Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7754591U JP2539875Y2 (en) 1991-08-30 1991-08-30 Planer knife fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7754591U JP2539875Y2 (en) 1991-08-30 1991-08-30 Planer knife fixing device

Publications (2)

Publication Number Publication Date
JPH0518802U JPH0518802U (en) 1993-03-09
JP2539875Y2 true JP2539875Y2 (en) 1997-07-02

Family

ID=13636980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7754591U Expired - Lifetime JP2539875Y2 (en) 1991-08-30 1991-08-30 Planer knife fixing device

Country Status (1)

Country Link
JP (1) JP2539875Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2742498B2 (en) * 1993-10-06 1998-04-22 株式会社松岡カッター製作所 Method of fixing blade of rotary blade device

Also Published As

Publication number Publication date
JPH0518802U (en) 1993-03-09

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