JPH058290Y2 - - Google Patents
Info
- Publication number
- JPH058290Y2 JPH058290Y2 JP1985132377U JP13237785U JPH058290Y2 JP H058290 Y2 JPH058290 Y2 JP H058290Y2 JP 1985132377 U JP1985132377 U JP 1985132377U JP 13237785 U JP13237785 U JP 13237785U JP H058290 Y2 JPH058290 Y2 JP H058290Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- rollers
- guide
- recording paper
- paper ejection
- 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
- 230000000694 effects Effects 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、複写機やプリンタ等の画像形成装置
における排紙装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper ejecting device in an image forming apparatus such as a copying machine or a printer.
例えば複写機の排紙装置として、第7図に示す
ように、記録紙の巾方向両側の縁部と中間部をニ
ツプして搬送する複数組の排紙ローラ25,26
対を軸芯方向に所定間隔をへだてて設けると共
に、該排紙ローラ25,26対に熱定着後の記録
紙を案内する上下の給紙案内具27,28を、少
なくとも上方の給紙案内具27を隣り合うローラ
25,25間で縦リブ状になるように配置(図示
する例では、下方の給紙案内具28も縦リブ状に
配置されている)した排紙装置Aが知られてい
る。
For example, as shown in FIG. 7, a copying machine's sheet ejecting device includes a plurality of sets of sheet ejecting rollers 25 and 26 that nip and convey the edges and intermediate portions of recording paper on both sides in the width direction.
A pair of upper and lower paper feed guides 27 and 28 are provided at a predetermined distance in the axial direction, and upper and lower paper feed guides 27 and 28 are provided to guide the recording paper after heat fixation to the pair of paper ejection rollers 25 and 26. 27 is arranged in a vertical rib shape between adjacent rollers 25, 25 (in the illustrated example, the lower paper feed guide 28 is also arranged in a vertical rib shape). There is.
上記の排紙装置Aにおいて、上方の給紙案内具
27を面板状にすると、熱定着によつて生じる記
録紙aからの水蒸気が放散し難くなつて、該給紙
案内具27に結露を生じることがあるが、給紙案
内具27を縦リブ状にすることによつて前記水蒸
気を効果的に放散でき、結露の防止を図ることが
できる利点がある。 In the above paper ejection device A, if the upper paper feed guide 27 is shaped like a face plate, it becomes difficult for water vapor from the recording paper a generated by heat fixing to dissipate, resulting in dew condensation on the paper feed guide 27. However, by forming the paper feed guide 27 in the form of vertical ribs, the water vapor can be effectively dissipated, and there is an advantage that dew condensation can be prevented.
ところで、かかる排紙装置Aに導入される記録
紙aは、前段の熱定着装置13による熱的影響に
よつて、第8図に示すように、その角部前端が上
向きにカールする傾向にある。
By the way, the front edge of the corner of the recording paper a introduced into the paper discharge device A tends to curl upward due to the thermal influence of the thermal fixing device 13 in the previous stage, as shown in FIG. .
そして、この角部前端のカール部分a1が、記録
紙の巾方向両側の縁部をニツプして搬送する左右
両側の排紙ローラ25,26対のニツプ部分を通
過する状況にある場合に、そのカール部分a1が折
り込まれた状態で排紙ローラ25,26によつて
挟持搬送されることがあつて、いわゆる角折れを
生じやすい欠点があつたのである。 When the curled portion a1 at the front end of the corner passes through the nip portions of the pair of left and right paper ejection rollers 25 and 26, which nip and convey the recording paper by nipping the edges on both sides in the width direction, The curled portion a1 is sometimes held and conveyed by the paper discharge rollers 25 and 26 in a folded state, resulting in a drawback that so-called corner folds are likely to occur.
あるいは、重送防止の爪を前端両側に備えたカ
セツトケースから記録紙aが給紙される際に、当
該記録紙aの角部前端が下方にカール気味になる
ことがあり、かつ、搬送や定着の影響で該カール
が増長されることがあつて、かかる場合に、排紙
ローラ25,26による挟持搬送作用によつて下
方への角折れを生じることもあつたのである。 Alternatively, when recording paper a is fed from a cassette case that has claws on both sides of the front end to prevent double feeding, the front edge of the corner of the recording paper a may curl downward, and The curl may be increased due to the effect of fixing, and in such a case, the nipping and conveying action of the paper ejection rollers 25 and 26 may cause downward corner bending.
本考案は、上記の角折れを簡単な改良によつて
解消せんことを目的としている。 The present invention aims to eliminate the above-mentioned corner folds through simple improvements.
上記目的を達成するために本考案は、記録紙の
巾方向両側の縁部と中間部をニツプして搬送する
上下の排紙ローラ対の複数組を設けると共に、当
該複数組の排紙ローラ対に向けて記録紙を案内す
る上下の給紙案内具を、少なくとも上方のものを
ローラ間で縦リブ状になるように配置した画像形
成装置の排紙装置において、前記記録紙の角部前
端を前記一対の排紙ローラ対のニツプ部に案内す
るガイド部材を設けた点に特徴がある。
In order to achieve the above object, the present invention provides a plurality of pairs of upper and lower paper ejection rollers that nip and convey the edges and intermediate portions of recording paper on both sides in the width direction, and also In a paper ejecting device of an image forming apparatus, in which upper and lower paper feeding guides for guiding the recording paper toward the rollers are arranged so that at least the upper one forms a vertical rib between the rollers, the front edge of the corner of the recording paper is The present invention is characterized in that a guide member is provided to guide the paper to the nip portion of the pair of paper ejection rollers.
上記の特徴構成によれば、上下の排紙ローラ対
によつて記録紙の角部前端がニツプされる状況に
ある場合、熱的な影響などによつてカール気味に
なつた角部前端が排紙ローラ対に送り込まれる前
に、その角部前端のカール部分がガイド部材に沿
つて移送されることで偏平に矯正される。
According to the characteristic structure described above, when the front edge of the corner of the recording paper is nipped by the pair of upper and lower paper ejection rollers, the front edge of the corner that has become slightly curled due to thermal effects is ejected. Before the paper is fed into the pair of paper rollers, the curled portion at the front end of the corner is moved along a guide member and flattened.
以下、本考案の実施例を図面に基づいて説明す
ると、第1図及び第2図は排紙装置Aを示し、第
5図は複写機全体の概略を示すものであつて、こ
の複写機は、コンタクトガラス1に対する原稿押
え2を上部に備えた複写機本体3に感光体4を横
架すると共に、該感光体4まわりに、帯電部5、
現像部6、転写部7、記録紙分離部8、クリーニ
ング部9を、その順に感光体の回転方向Rに配置
し、かつ、前記コンタクトガラス1の下部空間に
光学系移動式の露光装置10を設けると共に、カ
セツトケース11内の記録紙aを前記転写部7に
搬送する給紙搬送装置12と、分離後の記録紙a
を熱定着装置13に搬送する排紙搬送装置14、
及び、熱定着後の記録紙aをトレイ15に排出す
る排紙装置Aを設けて成る。
Hereinafter, embodiments of the present invention will be described based on the drawings. FIGS. 1 and 2 show a paper ejecting device A, and FIG. 5 schematically shows the entire copying machine. , a photoreceptor 4 is horizontally mounted on a copying machine main body 3 equipped with a document holder 2 on the upper part for contact glass 1, and a charging section 5,
A developing section 6, a transfer section 7, a recording paper separating section 8, and a cleaning section 9 are arranged in this order in the rotation direction R of the photoreceptor, and an exposure device 10 with a moving optical system is installed in the space below the contact glass 1. A paper feeding and conveying device 12 is provided for conveying the recording paper a in the cassette case 11 to the transfer section 7, and a recording paper a after separation is provided.
a discharge paper conveyance device 14 that conveys the paper to the heat fixing device 13;
Further, a paper ejecting device A is provided to eject the recording paper a after thermal fixation onto the tray 15.
前記定着装置13は、上下一対の加熱ローラ1
6と加圧ローラ17とから成り、一方の加熱ロー
ラ16は、フツ素系樹脂等を表面にコーテイング
した金属製の筒状ローラ本体18の内部に、発熱
ランプやコイル等のヒータ19を内蔵したもので
あり、他方の加圧ローラ17は、金属製のローラ
本体20にシリコンゴム等の厚肉の弾性筒体21
を外嵌したものであつて、何れも側板22,22
に架設されている。 The fixing device 13 includes a pair of upper and lower heating rollers 1.
6 and a pressure roller 17, one heating roller 16 has a heater 19 such as a heating lamp or a coil built inside a metal cylindrical roller body 18 whose surface is coated with fluorocarbon resin or the like. The other pressure roller 17 has a metal roller body 20 and a thick elastic cylinder 21 made of silicone rubber or the like.
are fitted externally, and both side plates 22, 22
It is constructed in
前記排紙装置Aは次の如く構成されている。即
ち、第1図及び第2図に示すように、軸芯が前記
定着用ローラ16,17の軸芯に平行な上下一対
の回転軸23,24を回転自在に前記側板22,
22に取付けると共に、上方の回転軸23を側板
22,22に形成の長孔bに沿つて上下変位自在
とし、かつ、巾狭の上部排紙ローラ25と巾広の
下部排紙ローラ26との対の複数組(4組を例示
する。)を、軸芯方向に所定間隔をへだてて前記
回転軸23,24に取付けると共に、当該上下の
排紙ローラ25,26対に熱定着後の記録紙aを
案内するための上下の給紙案内具27…,28と
ガイド部材29とを配置してある。 The paper ejecting device A is constructed as follows. That is, as shown in FIGS. 1 and 2, the side plates 22,
22, the upper rotating shaft 23 is vertically movable along the long holes b formed in the side plates 22, 22, and a narrow upper paper ejection roller 25 and a wider lower paper ejection roller 26 are installed. A plurality of pairs (four pairs are exemplified) are attached to the rotating shafts 23 and 24 at a predetermined interval in the axial direction, and the recording paper after being thermally fixed is attached to the pair of upper and lower paper ejection rollers 25 and 26. Upper and lower paper feeding guides 27..., 28 and a guide member 29 are arranged for guiding the paper.
尚、下部排紙ローラ26…のうち中央側のもの
は片フランジ付きであり、両側のものは両フラン
ジ付きのものであつて、排紙すべき記録紙aを巾
方向で屈曲させて、記録紙aの腰を強くした状態
で排紙できるようにしてある。 Note that among the lower paper ejection rollers 26, the one on the center side has one flange, and the one on both sides has both flanges, and the recording paper a to be ejected is bent in the width direction and recorded. Paper a is made stiff so that it can be ejected.
前記上部給紙案内具27…は、第1,2図及び
第4図に示すように、プレス加工によつてH字状
に打ち抜いた板状素材を、プレスによる打ち抜き
バリiを上方に位置させた状態で、かつ、取付面
部27aに対する折り返し角θが鋭角になるよう
に、その両側を下方に折り返して、その折り返し
による縦リブ状の部分を給紙案内具27としたも
ので、該縦リブ状の給紙案内具27が上方の排紙
ローラ25,25間に位置するように、前記取付
面部27aを側板22,22にわたる連設部材3
0に止着させてある。 As shown in FIGS. 1, 2, and 4, the upper paper feed guide 27 is made of a plate-shaped material punched into an H-shape by press processing, with the punching burr i formed by the press positioned above. In this state, both sides are folded downward so that the folding angle θ with respect to the mounting surface portion 27a becomes an acute angle, and the vertical rib-shaped portion formed by the folding is used as the paper feeding guide 27. The mounting surface portion 27a is connected to the connecting member 3 that spans the side plates 22, 22 so that the paper feeding guide 27 is located between the upper paper ejection rollers 25, 25.
It is fixed at 0.
この構成によれば、従来は、縦リブ状の給紙案
内具27を鉛直に垂下連設させていた為に、前記
打ち抜きバリiの除去加工を要したものである
が、上述のように、折り返し角を鋭角にしたこと
によつて、前記バリiが記録紙aの案内面より上
方に位置することになり、従つて、バリ除去の加
工が不要になる利点がある。 According to this configuration, conventionally, the vertical rib-shaped sheet feeding guide 27 was arranged vertically and downwardly, so that the punching burr i had to be removed, but as described above, By making the folding angle acute, the burr i is located above the guide surface of the recording paper a, which has the advantage of eliminating the need for burr removal.
他方の下部給紙案内具28は、下部排紙ローラ
26…に対応する部分を切除した面板部材から成
り、かつ、該切除部間の下方に湾曲する部分28
aを下部排紙ローラ26,26間に位置させてあ
る。 The other lower paper feed guide 28 is made of a face plate member with a portion corresponding to the lower paper ejection rollers 26 cut out, and a portion 28 that curves downward between the cut portions.
a is located between the lower paper ejection rollers 26, 26.
さて、前記ガイド部材29は、左右一対の排紙
ローラ対25,26に対応させて記録紙aの導入
部側に設けられており、当該上下の排紙ローラ2
5,26対が記録紙aの巾方向両側の縁部をニツ
プして搬送する際に、その記録紙aの角部前端の
上面側を下方に向けて排紙ローラ25,26対の
ニツプ部分に案内するもので、第1図乃至第3図
に示すように、Lの字状の板状素材を折曲して、
前記連設部材30に対する取付面部cと、該面部
cから下方に折れた垂下面部dと、この面部dの
下端から水平に折れた水平面部e、及び、該水平
面部eから前記ニツプ部分に向かつて延びる傾斜
ガイド面部fを形成して成り、かつ、前記傾斜ガ
イド面部fの巾Lが、前記排紙ローラ25,26
対間のニツプ巾つまり前記巾狭の上部排紙ローラ
25の巾lよりも巾広であつて、上下排紙ローラ
25,26によつてニツプされる記録紙aの角部
前端が上方にカール気味であつても、これのカー
ルを戻しながら偏平に矯正して排紙ローラ25,
26間に供給できるようにしてある。 Now, the guide member 29 is provided on the introduction section side of the recording paper a in correspondence with the left and right pair of paper ejection rollers 25 and 26, and
When the pairs of paper ejecting rollers 25 and 26 nip the edges on both sides in the width direction of the recording paper a and convey it, the upper surface side of the front edge of the corner of the recording paper a is directed downward to the nip portion of the pair of paper ejection rollers 25 and 26. As shown in Figures 1 to 3, the L-shaped plate material is bent,
A mounting surface c for the continuous member 30, a hanging surface d bent downward from the surface c, a horizontal surface e bent horizontally from the lower end of the surface d, and a direction from the horizontal surface e toward the nip portion. The width L of the inclined guide surface portion f is the same as that of the paper ejection rollers 25 and 26.
The nip width between the pair is wider than the width l of the narrow upper paper ejection roller 25, and the front edge of the corner of the recording paper a nipped by the upper and lower paper ejection rollers 25 and 26 curls upward. Even if the paper is slightly curled, uncurl it and straighten it to make it flat.
It is designed to be supplied for 26 days.
第6図にガイド部材29の別実施例を示す。こ
のものは、Lの字状の板状素材を折曲させて、前
記連設部材30に対する取付面部gと、この面部
gから上下排紙ローラ25,26側に延びるリブ
状の傾斜ガイド部hとを形成し、かつ、傾斜ガイ
ド部hを排紙ローラ25,26対間のニツプ巾内
つまり巾狭の上部排紙ローラ25の巾内に配置し
たもので、この場合も取付面部gに対する折り返
し角θ1を鋭角にすることによつて、プレス加工に
よるバリ除去を不要にすることができる。 Another embodiment of the guide member 29 is shown in FIG. This is made by bending an L-shaped plate material to form a mounting surface g for the continuous member 30, and a rib-shaped inclined guide portion h extending from this surface g toward the upper and lower paper discharge rollers 25 and 26. In addition, the inclined guide portion h is arranged within the nip width between the pair of paper ejection rollers 25 and 26, that is, within the width of the narrow upper paper ejection roller 25, and in this case also, the folded guide portion h with respect to the mounting surface portion g is By making the angle θ 1 acute, removing burrs by press working can be made unnecessary.
尚、記録紙aの角部前端が下方に向かつてカー
ル気味になることがあり、かかる場合は、該記録
紙aの角部前端の下面側を上方に向けて排紙ロー
ラ25,26のニツプ部分に案内するように、ガ
イド部材29を設ければ良く、あるいは、記録紙
aの角部前端の上下両面をニツプ部分に案内する
ように、ガイド部材29を上下で対にして配置す
る構成にするも良い。 Note that the front edge of the corner of the recording paper a may curl slightly as it moves downward; in such a case, the front edge of the corner of the recording paper Alternatively, the guide members 29 may be arranged in pairs, upper and lower, so as to guide both the top and bottom of the front edge of the corner of the recording paper a to the nip part. It's okay to do that.
以上説明したように本考案による画像形成装置
の排紙装置は、記録紙の巾方向両側の縁部をニツ
プして搬送する排紙ローラ対のニツプ部分に記録
紙の角部前端が導入される前に、当該記録紙の角
部前端をガイド部材に沿わせて移送させて、これ
によつてカール気味になつた角部前端を偏平に矯
正させつつ、当該記録紙の角部前端を排紙ローラ
対のニツプ部分に供給させるものであつて、これ
によつて、排紙ローラ対が角部前端のカール部分
を折り込むようにニツプする事態が回避され、い
わゆる記録紙の角折れが効果的に防止される。
As explained above, in the paper ejecting device of the image forming apparatus according to the present invention, the front edge of the corner of the recording paper is introduced into the nip portion of the pair of paper ejection rollers that nip and convey the edges of the recording paper on both sides in the width direction. Before transporting the front edge of the corner of the recording paper along the guide member, the front edge of the corner that has become slightly curled is flattened, and the front edge of the corner of the recording paper is ejected. The paper is supplied to the nip portion of the roller pair, thereby preventing the paper ejection roller pair from nipping the curled portion at the front end of the corner, effectively preventing the so-called corner folding of the recording paper. Prevented.
第1図は熱転写装置ならびに排紙装置の断面
図、第2図は排紙装置の後面図、第3図はガイド
部材の斜視図、第4図は要部を取出して拡大図示
した上部給紙案内具の詳細斜視図、第5図は複写
機全体の概略縦断面図、第6図は別実施例の斜視
図である。第7図は従来例の排紙装置の斜視図、
第8図は記録紙の角部前端の角折れ状態の説明図
である。
25,26……排紙ローラ、27,28……給
紙案内具、29……ガイド部材、a……記録紙、
l,L……巾。
Fig. 1 is a cross-sectional view of the thermal transfer device and paper ejection device, Fig. 2 is a rear view of the paper ejection device, Fig. 3 is a perspective view of the guide member, and Fig. 4 is an enlarged view of the main parts of the upper paper feeder. FIG. 5 is a schematic vertical sectional view of the entire copying machine, and FIG. 6 is a perspective view of another embodiment. FIG. 7 is a perspective view of a conventional paper ejecting device;
FIG. 8 is an explanatory diagram of a state in which the front edge of the corner of the recording paper is folded. 25, 26... Paper discharge roller, 27, 28... Paper feed guide, 29... Guide member, a... Recording paper,
l, L...width.
Claims (1)
して搬送する上下の排紙ローラ対の複数組を設
けると共に、当該複数組の排紙ローラ対に向け
て記録紙を案内する上下の給紙案内具を、少な
くとも上方のものをローラ間で縦リブ状になる
ように配置した画像形成装置の排紙装置におい
て、前記記録紙の角部前端を前記一対の排紙ロ
ーラ対のニツプ部に案内するガイド部材を設け
てあることを特徴とする画像形成装置の排紙装
置。 (2) 前記ガイド部材の案内巾が、前記排紙ローラ
対のニツプ巾よりも大であることを特徴とする
実用新案登録請求の範囲第(1)項に記載の画像形
成装置の排紙装置。 (3) 前記ガイド部材の案内巾が、前記排紙ローラ
対のニツプ巾内に納められていることを特徴と
する実用新案登録請求の範囲第(1)項に記載の画
像形成装置の排紙装置。 (4) 前記ガイド部材が、記録紙の角部前端の上面
側を案内するように構成されていることを特徴
とする実用新案登録請求の範囲第(1)項に記載の
画像形成装置の排紙装置。[Scope of Claim for Utility Model Registration] (1) A plurality of pairs of upper and lower paper ejection rollers are provided to nip and convey the recording paper at both edges and an intermediate portion in the width direction, and the plurality of pairs of paper ejection rollers are provided. In a paper ejecting device of an image forming apparatus, in which upper and lower paper feeding guides for guiding the recording paper toward the rollers are arranged so that at least the upper one forms a vertical rib between the rollers, the front edge of the corner of the recording paper is A paper ejection device for an image forming apparatus, characterized in that a guide member is provided to guide the nip portion of the pair of paper ejection rollers. (2) A paper ejection device for an image forming apparatus according to claim (1), wherein the guide width of the guide member is larger than the nip width of the pair of paper ejection rollers. . (3) Paper ejection of the image forming apparatus according to claim (1), wherein the guide width of the guide member is accommodated within the nip width of the pair of paper ejection rollers. Device. (4) The image forming apparatus according to claim 1, wherein the guide member is configured to guide the upper surface side of the front end of the corner of the recording paper. paper equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985132377U JPH058290Y2 (en) | 1985-08-28 | 1985-08-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985132377U JPH058290Y2 (en) | 1985-08-28 | 1985-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6241772U JPS6241772U (en) | 1987-03-12 |
JPH058290Y2 true JPH058290Y2 (en) | 1993-03-02 |
Family
ID=31031705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985132377U Expired - Lifetime JPH058290Y2 (en) | 1985-08-28 | 1985-08-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH058290Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0644933Y2 (en) * | 1986-02-21 | 1994-11-16 | オリンパス光学工業株式会社 | Paper ejection device |
JP2017024843A (en) * | 2015-07-21 | 2017-02-02 | 株式会社東芝 | Image forming apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760160B2 (en) * | 1974-08-26 | 1982-12-17 | Minoru Kuroda |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630827Y2 (en) * | 1977-12-20 | 1981-07-22 | ||
JPS5760160U (en) * | 1980-09-29 | 1982-04-09 |
-
1985
- 1985-08-28 JP JP1985132377U patent/JPH058290Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760160B2 (en) * | 1974-08-26 | 1982-12-17 | Minoru Kuroda |
Also Published As
Publication number | Publication date |
---|---|
JPS6241772U (en) | 1987-03-12 |
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