JPH033111B2 - - Google Patents
Info
- Publication number
- JPH033111B2 JPH033111B2 JP59182994A JP18299484A JPH033111B2 JP H033111 B2 JPH033111 B2 JP H033111B2 JP 59182994 A JP59182994 A JP 59182994A JP 18299484 A JP18299484 A JP 18299484A JP H033111 B2 JPH033111 B2 JP H033111B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- annular
- hose fitting
- fitting
- annular part
- 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
- 210000002445 nipple Anatomy 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 33
- 238000005304 joining Methods 0.000 description 11
- 238000000465 moulding Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Supports For Pipes And Cables (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はホースの中間部を保持するために使用
するホースとホース用金具との結合方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for connecting a hose and a hose fitting used to hold the intermediate portion of the hose.
［従来の技術］
ホースに結合される従来のホース用係合金具
は、ホースが挿入され該ホースの外周面に取付け
られる環状部と他の物体に係合するための係合部
とで構成されている。[Prior Art] A conventional hose engagement fitting coupled to a hose is composed of an annular portion into which the hose is inserted and attached to the outer peripheral surface of the hose, and an engaging portion for engaging with another object. ing.
［発明が解決しようとする課題］
前記従来のホース用係合金具は、例えば細長い
板材の一端を円筒状に巻いて環状部をつくり、他
端部を係合部としている。また切削加工等で環状
部、係合部を作り、溶接、ロー付け等で一体化す
るものであつた。細い板材を巻いて環状部を作る
場合には、完全な円形にならず、スリツトが形成
されるために保持力が弱いといつた問題がある。
また、切削した後接合して作るものは、加工コス
トが高く、高価で、かつ溶接部分の強度に不安が
あるものであつた。[Problems to be Solved by the Invention] In the conventional hose engagement fitting, for example, one end of an elongated plate is rolled into a cylindrical shape to form an annular portion, and the other end is used as an engaging portion. In addition, the annular part and the engaging part were created by cutting, etc., and then integrated by welding, brazing, etc. When making an annular part by winding a thin plate, there is a problem that the holding force is weak because it is not perfectly circular and slits are formed.
Moreover, those made by cutting and then joining have high processing costs, are expensive, and there are concerns about the strength of the welded parts.
本発明は軽量で強度が高く、かつ安価に製造で
きるホースとホース用金具との結合構造を得るた
めの結合方法を提供することを目的とする。 An object of the present invention is to provide a connection method for obtaining a connection structure between a hose and a hose fitting that is lightweight, has high strength, and can be manufactured at low cost.
［課題を解決するための手段］
本発明のホースとホース用金具との結合方法
は、金属板材の一部をカツプ状に絞りプレス成形
した後、該カツプ状の底部を取り除いて環状部と
し、該プレス成形時に絞り成形されなかつた部分
からフランジ部を形成するホース用金具の成形工
程と、
ホース内孔に筒状のニツプルを設け、該ホース
用金具の該環状部の貫通孔内に該ホースを挿入し
該ホース内孔の該ニツプルと該環状部とを同軸的
に位置した状態で該環状部の外周面を中心軸方向
にかしめることにより該環状部と該ニツプルの間
で該ホースを固定保持する結合工程とからなる特
徴とするものである。[Means for Solving the Problems] A method for connecting a hose and a hose fitting according to the present invention includes drawing and press forming a part of a metal plate into a cup shape, and then removing the bottom of the cup shape to form an annular part. A process of forming a hose fitting in which a flange portion is formed from a portion that was not drawn during the press forming, and a cylindrical nipple is provided in the inner hole of the hose, and the hose is inserted into the through hole of the annular portion of the hose fitting. The hose is inserted between the annular part and the nipple by crimping the outer peripheral surface of the annular part in the central axis direction with the nipple and the annular part of the hose inner hole positioned coaxially. The method is characterized by a bonding step for fixing and holding.
本発明のホースとホース用金具との結合方法
は、成形工程と、結合工程とからなる。 The method of joining a hose and a hose fitting according to the present invention includes a molding step and a joining step.
成形工程では、金属板材の一部をカツプ状に絞
りプレス成形した後、カツプ状の底部を取り除い
て環状部とし、プレス成形時に絞り成形されなか
つた部分からフランジ部を形成する。すなわち絞
りプレス成形により、一面より他面にかけて、カ
ツプ状に絞り成形を行ない、周縁部をフランジ部
として残しつつ有底のカツプを形成する。所定の
深さに成形した後、底の部分を打ち抜き、環状部
とするものである。このため、環状部は、フラン
ジ部に近い部分が厚く、他端部側が薄肉となつて
いる。フランジ部は適当に打ち抜きし、最終的に
は必要な肉しろを残して打ち抜く。この時に同時
にフランジ部の一部に係合部を形成することがで
きる。係合部は例えば係合穴を設けることによつ
て形成される。この係合部は絞り加工を受けてい
ないために比較的に肉厚である。 In the forming process, a part of the metal plate material is drawn and press-formed into a cup shape, the bottom of the cup shape is removed to form an annular part, and a flange part is formed from the part that was not drawn during press-forming. That is, draw press forming is performed to form a cup shape from one side to the other side, thereby forming a bottomed cup while leaving the peripheral edge part as a flange part. After molding to a predetermined depth, the bottom part is punched out to form an annular part. For this reason, the annular portion is thick at a portion close to the flange portion and thin at the other end. The flange part is punched out appropriately, and finally punched out leaving the necessary filler allowance. At this time, an engaging portion can be formed on a part of the flange portion at the same time. The engaging portion is formed, for example, by providing an engaging hole. This engaging portion is relatively thick because it has not been subjected to drawing processing.
結合工程では、ホース内孔に筒状のニツプルを
設け、前記成形工程で形成されたホース用金具の
環状部の貫通孔内にホースを挿入しホース内孔の
ニツプルと環状部とを同軸的に位置した状態で環
状部の外周面を中心軸方向にかしめることにより
環状部と該ニツプルの間でホースを固定保持す
る。 In the joining process, a cylindrical nipple is provided in the hose inner hole, the hose is inserted into the through hole of the annular part of the hose fitting formed in the molding process, and the nipple of the hose inner hole and the annular part are coaxially connected. The hose is held fixed between the annular part and the nipple by caulking the outer peripheral surface of the annular part in the direction of the central axis in the positioned state.
本発明のホースとホース用金具との結合方法に
用いるホース用金具は、成形工程で鋼板より所定
の形状に打ち抜き、次に絞り加工を行ない、カツ
プ状に形成する。絞り加工の回数は、深絞りとす
るほど多数回を必要とするが、目的とする環状部
の長さ、直径等により絞り加工回数を選択するこ
とができる。所定の深さに絞り加工をし終えた
後、底部の穴抜き加工及びフランジ部のツバ切り
ならびに係合部の穴抜き等を行なう。なお、底部
の穴抜きとフランジ部のツバ切りは、いずれを先
に行なつても、又可能ならば同時に行なつてもよ
い。この後、必要がある場合は、バレル研磨等で
鋭角部を取り除いたり、クロメート処理等の表面
処理を行なう。 The hose fitting used in the method of joining a hose and a hose fitting according to the present invention is punched into a predetermined shape from a steel plate in a forming process, and then drawn into a cup shape. The deeper the drawing, the more times the drawing process is required, but the number of drawing processes can be selected depending on the length, diameter, etc. of the intended annular part. After drawing to a predetermined depth, the bottom is punched, the flange is cut, and the engaging portion is punched. It should be noted that either the bottom hole punching or the flange collar cutting may be done first, or they may be done at the same time if possible. After this, if necessary, sharp edges are removed by barrel polishing or the like, or surface treatment such as chromate treatment is performed.
［実施例］
本発明のホースとホース用金具との結合方法の
代表的な実施例を説明する。[Example] A typical example of a method for connecting a hose and a hose fitting according to the present invention will be described.
本実施例のホースとホース用金具との結合方法
は、ホース用金具を製造する成形工程と、ホース
とホース成形工程で得られたホース用金具とを結
合する結合工程とからなる。本実施例に用いるホ
ース用金具Ａの平面図を第１図に、その中央縦断
面図を第２図に示す。このホース用金具Ａは環状
部１とフランジ部２とで構成されている。環状部
１は一端が環状口部１１となり、他端部１２は先
端にいくほど薄肉となつている。フランジ部２は
環状口部１１と連続しており、環状口部１１の外
周方向に突出した部分で構成されている。このフ
ランジ部２には係合穴よりなる係合部２ａが形成
されている。 The method of joining a hose and a hose fitting according to this embodiment includes a molding step of manufacturing a hose fitting, and a joining step of joining a hose and a hose fitting obtained in the hose forming step. A plan view of the hose fitting A used in this example is shown in FIG. 1, and a longitudinal cross-sectional view at the center thereof is shown in FIG. This hose fitting A is composed of an annular portion 1 and a flange portion 2. One end of the annular portion 1 serves as an annular mouth portion 11, and the other end portion 12 becomes thinner toward the tip. The flange portion 2 is continuous with the annular mouth portion 11 and is constituted by a portion protruding toward the outer circumferential direction of the annular mouth portion 11 . This flange portion 2 is formed with an engaging portion 2a consisting of an engaging hole.
次にこのホース用金具Ａの製造方法として成形
工程を説明する。まず、成形工程では第１工程と
して厚さ１〜３mm程度の鋼板より第３図に示す鋼
材ａ１をプレスを用いた打ち抜きにより前方側が
小円、後方側が大円で両円の円周端を直線で結ん
だ形状に形成した。この素材は完成品であるホー
ス用金具Ａの外周形状より僅かに大きな形状を有
するものである。次に第２工程で、素材の大きい
後方円形部分を中心にして通常の方法で絞り加工
を行なう。なお、この絞り加工はフランジ部に相
当する部分を押さえつつ中央部をポンチで絞り加
工をするものである。この絞り加工は通常のカツ
プ成形のカツプ状絞り加工と同一のものである。
この第１絞り加工により第４図にその断面を示す
形状に加工して一次半製品ａ２となした。次に第
２の絞り加工を行ない、そのカツプ状の直径およ
び絞りを深くし、第５図に示す形状に加工して二
次半製品ａ３となした。なお、この場合、絞り加
工回数は限定されるものではなく必要に応じて絞
り加工の回数を多くするこにより板厚の変化が僅
かなカツプ状あるいは板厚が一定なカツプ状に近
い形状とすることも可能である。この後、フラン
ジ部のツバ切りおよび外周面形状の打ち抜き、お
よび係合部となる穴抜きを行ない第１図に示す平
面形状に仕上げた。最後に第５図の底部の打ち抜
きを行ない、第１図および第２図に示すホース用
金具Ａとしたものである。 Next, a molding process will be explained as a method for manufacturing this hose fitting A. First, in the forming process, in the first step, steel material a1 shown in Fig. 3 is punched out from a steel plate with a thickness of about 1 to 3 mm using a press, with a small circle on the front side and a large circle on the rear side, and the circumferential ends of both circles are made into a straight line. It was formed into a tied shape. This material has a shape slightly larger than the outer circumferential shape of the finished hose fitting A. Next, in the second step, drawing is performed in the usual manner, focusing on the large rear circular part of the material. Note that this drawing process involves drawing the center part with a punch while holding down the part corresponding to the flange part. This drawing process is the same as the cup-shaped drawing process used in ordinary cup forming.
This first drawing process produced a primary semi-finished product a2 into the shape whose cross section is shown in FIG. Next, a second drawing process was performed to increase the diameter and depth of the cup shape and form the shape shown in FIG. 5 to form a secondary semi-finished product a3. In this case, the number of drawing operations is not limited, and by increasing the number of drawing operations as necessary, it is possible to create a cup shape with a slight change in plate thickness or a shape close to a cup shape with a constant plate thickness. It is also possible. Thereafter, the flange portion was trimmed, the outer peripheral surface shape was punched out, and a hole was punched to form the engaging portion, resulting in the planar shape shown in FIG. 1. Finally, the bottom part shown in FIG. 5 was punched out to form the hose fitting A shown in FIGS. 1 and 2.
このホース用金具Ａは結合工程により第６図に
示すように環状部１の貫通孔１４内にホース３を
挿入した後、第７図に示すように環状部１の外周
側よりかしめ加工し、ホース３とホース用金具Ａ
とを一体的に固定して結合する。この後、環状部
１でホース３の外周面を保持すると共にフランジ
部２の係合部２ａにボルト等を通し、他の部品に
ホース用金具Ａ部分を取り付け、ホース３の中間
を保持させて使用するものである。なお、環状部
１のかしめ加工に先立ち、予めホース３の外周面
と環状部１の貫通孔１４内周面とを接着剤等で接
着固定するとともに、第７図に示すようにホース
３の内周面にニツプル部４を挿入し、ホース３の
外周面に保持されたホース用金具Ａの環状部１の
外周側よりかしめ加工し、ホース３とホース用金
具Ａとを一体的に固定して結合構造としてもよ
い。また、必要に応じフランジ部２を折り曲げ適
当な方向にホース３を案内することも可能であ
る。 This hose fitting A is made by inserting the hose 3 into the through hole 14 of the annular portion 1 as shown in FIG. 6 in the joining process, and then caulking it from the outer circumferential side of the annular portion 1 as shown in FIG. Hose 3 and hose fitting A
and are integrally fixed and combined. After that, hold the outer peripheral surface of the hose 3 with the annular part 1, pass a bolt or the like through the engaging part 2a of the flange part 2, attach the hose fitting A part to other parts, and hold the middle of the hose 3. It is what you use. Before caulking the annular portion 1, the outer circumferential surface of the hose 3 and the inner circumferential surface of the through hole 14 of the annular portion 1 are adhesively fixed in advance with an adhesive or the like, and the inner circumferential surface of the hose 3 is fixed as shown in FIG. The nipple part 4 is inserted into the circumferential surface, and caulking is performed from the outer circumferential side of the annular part 1 of the hose fitting A held on the outer circumferential surface of the hose 3 to integrally fix the hose 3 and the hose fitting A. It may also be a bonded structure. Furthermore, it is also possible to guide the hose 3 in an appropriate direction by bending the flange portion 2 if necessary.
本実施例のホースとホース用金具との結合方法
に用いるホース用金具は、比較的薄肉の鋼板を素
材として、プレス成形で形成されているために、
環状部が比較的薄肉である。このために比較的軽
量である。また、強度を必要とするフランジ部及
び環状口部はプレス成形等により薄肉化がされて
いないために他の部分に比較して、肉厚となり、
他の部分に比較して機械的強度が高い。特にフラ
ンジ部及び環状口部は大きな力が作用する部分で
あり、機械的にも強いものとなつている。また、
ホース用金具の環状部はフランジ部および環状口
部より薄くすることにより軸方向に長くでき、環
状部を外周より半径方向に向つてかしめる面積を
大きくとり、ホースを安定保持することができ
る。 The hose fitting used in the method of connecting the hose and the hose fitting in this embodiment is formed by press molding from a relatively thin steel plate.
The annular portion is relatively thin. This makes it relatively lightweight. In addition, the flange part and annular mouth part, which require strength, are thicker than other parts because they are not made thinner by press forming, etc.
High mechanical strength compared to other parts. In particular, the flange portion and the annular mouth portion are areas on which large forces act, and are mechanically strong. Also,
By making the annular part of the hose fitting thinner than the flange part and the annular mouth part, it can be made longer in the axial direction, and the area of the annular part to be caulked in the radial direction is larger than the outer circumference, so that the hose can be stably held.
［発明の効果］
本発明のホースとホース用金具との結合方法に
用いるホース用金具は、成形工程で板状部材をプ
レス成形で製造するために、比較的薄い板材を使
用できる。このために必然的に得られるホース用
金具そのものは軽量なものとなるとともに、全体
の打抜き形状を必要に応じて自由に選択できる。
また、前記成形工程では、主として、絞り加工お
よび打ち抜き加工により成される。このために生
産性が極めて高く、製造コストが極めて安くな
る。このため安価に多量に供給できる。また、ホ
ースとホース用金具との結合構造として強度が要
求されるフランジ部およびフランジ部に連設する
環状部の環状口部は、絞り加工等によつて加工を
あまり受けない部分である。このために素材の厚
さがほぼ維持され、環状部の他端部側に比べて肉
厚が維持でき強度の高いものとなる。環状部の他
端部側は、絞り加工により必然的に薄肉となるが
環状部の他端部側にいくほど強度はあまり必要と
しないために強度上の問題は少ない。また、環状
部分は、結合工程でかしめ加工等を行なうため、
比較的薄肉でかしめ加工の容易なものであるのが
好ましく、この意味で適切な環状部となつてい
る。すなわち、環状部は絞り加工によつて形成さ
れるのでかしめ加工に必要とする適切な肉厚、寸
法が得られる。[Effects of the Invention] For the hose fitting used in the method of joining a hose and a hose fitting of the present invention, a relatively thin plate material can be used because the plate-like member is manufactured by press molding in the forming process. For this reason, the hose fitting itself inevitably becomes lightweight, and the overall punched shape can be freely selected as required.
Further, the forming process is mainly performed by drawing and punching. For this reason, productivity is extremely high and manufacturing costs are extremely low. Therefore, it can be supplied in large quantities at low cost. Further, the flange portion, which requires strength as a connection structure between the hose and the hose fitting, and the annular mouth portion of the annular portion connected to the flange portion are portions that are not subjected to much processing by drawing or the like. For this reason, the thickness of the material is almost maintained, and compared to the other end of the annular part, the thickness can be maintained and the strength can be increased. The other end of the annular portion inevitably becomes thinner due to the drawing process, but the closer to the other end of the annular portion the less strength is required, so there are fewer problems with strength. In addition, the annular part is caulked during the joining process, so
It is preferable that it be relatively thin and easy to caulk, and in this sense it is a suitable annular portion. That is, since the annular portion is formed by drawing, an appropriate wall thickness and dimensions required for caulking can be obtained.
図は本発明の実施例のホースとホース用金具と
の結合方法に用いるホースと、ホース用金具とを
示し、第１図はホース用金具の平面図、第２図は
ホース用金具の縦断面図、第３図はホース用金具
を製造するための素材の平面図、第４図は第１絞
り加工終了時の一次半製品断面図、第５図は第２
加工絞り終了時の二次半製品断面図、第６図はホ
ース用金具をホースに取付けた状態を示す縦断面
図、第７図はホース用金具をホースに取付けかし
め加工した状態を示す縦断面図である。
Ａ……ホース用金具、１……環状部、１１……
環状口部、１２……他端部、１３……かしめ部、
１４……貫通孔、２……フランジ部、２ａ……係
合部、３……ホース、４……ニツプル部。
The figures show a hose and a hose fitting used in the method of connecting a hose and a hose fitting according to an embodiment of the present invention, FIG. 1 is a plan view of the hose fitting, and FIG. 2 is a longitudinal cross-section of the hose fitting. Figure 3 is a plan view of the raw material for manufacturing hose fittings, Figure 4 is a sectional view of the primary semi-finished product after the first drawing process, and Figure 5 is the second
A cross-sectional view of the secondary semi-finished product at the end of drawing process, Figure 6 is a vertical cross-sectional view showing the state in which the hose fitting is attached to the hose, and Figure 7 is a vertical cross-sectional view showing the state in which the hose fitting is attached to the hose and caulked. It is a diagram. A... Hose fitting, 1... Annular part, 11...
Annular mouth part, 12...other end part, 13... caulking part,
14...Through hole, 2...Flange part, 2a...Engagement part, 3...Hose, 4...Nipple part.
Claims (1)
した後、該カツプ状の底部を取り除いて環状部と
し、該プレス成形時に絞り成形されなかつた部分
からフランジ部を形成するホース用金具の成形工
程と、 ホース内孔に筒状のニツプルを設け、該ホース
用金具の該環状部の貫通孔内に該ホースを挿入し
該ホース内孔の該ニツプルと該環状部とを同軸的
に位置した状態で該環状部の外周面を中心軸方向
にかしめることにより該環状部と該ニツプルの間
で該ホースを固定保持する結合工程とからなるこ
とを特徴とするホースとホース用金具との結合方
法。[Scope of Claims] 1. After drawing and press forming a part of a metal plate material into a cup shape, the bottom of the cup shape is removed to form an annular part, and a flange part is formed from the part that was not drawn during the press forming. A step of forming a hose fitting, a cylindrical nipple is provided in the inner hole of the hose, the hose is inserted into a through hole of the annular part of the hose fitting, and the nipple of the hose inner hole and the annular part are connected. A hose characterized by a coupling step of fixing and holding the hose between the annular part and the nipple by caulking the outer peripheral surface of the annular part in the direction of the central axis while the hose is coaxially positioned. How to connect with metal fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18299484A JPS6162692A (en) | 1984-08-31 | 1984-08-31 | Connecting fitting for hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18299484A JPS6162692A (en) | 1984-08-31 | 1984-08-31 | Connecting fitting for hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6162692A JPS6162692A (en) | 1986-03-31 |
| JPH033111B2 true JPH033111B2 (en) | 1991-01-17 |
Family
ID=16127892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18299484A Granted JPS6162692A (en) | 1984-08-31 | 1984-08-31 | Connecting fitting for hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6162692A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2689267B2 (en) * | 1988-10-20 | 1997-12-10 | 臼井国際産業株式会社 | Fixing method of piping with clamp body |
| JPH0280129A (en) * | 1988-09-13 | 1990-03-20 | Toyoda Gosei Co Ltd | Manufacture of hose fittings |
| JP2882810B2 (en) * | 1989-05-17 | 1999-04-12 | 臼井国際産業株式会社 | How to fix small-diameter pipes with flange members |
| US5482086A (en) * | 1994-07-18 | 1996-01-09 | Toyoda Gosei Co., Ltd. | Hose with intermediate coupling |
| KR101159229B1 (en) * | 2010-10-18 | 2012-06-26 | 삼성중공업 주식회사 | Parachute unit and internal pipe inspection apparatus having the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536920U (en) * | 1976-07-05 | 1978-01-21 |
-
1984
- 1984-08-31 JP JP18299484A patent/JPS6162692A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536920U (en) * | 1976-07-05 | 1978-01-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6162692A (en) | 1986-03-31 |
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