JPH0511962Y2 - - Google Patents
Info
- Publication number
- JPH0511962Y2 JPH0511962Y2 JP1987141195U JP14119587U JPH0511962Y2 JP H0511962 Y2 JPH0511962 Y2 JP H0511962Y2 JP 1987141195 U JP1987141195 U JP 1987141195U JP 14119587 U JP14119587 U JP 14119587U JP H0511962 Y2 JPH0511962 Y2 JP H0511962Y2
- Authority
- JP
- Japan
- Prior art keywords
- mounting hole
- grindstone
- flange
- nut body
- recesses
- 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
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、レジノイドオフセツト研削砥石、
レジノイドフレキシブル研削砥石糖の回転砥石に
関し、そのグラインダー駆動軸への取付構造の改
良を図つたものである。[Detailed description of the invention] (Industrial application field) This invention is based on a resinoid offset grinding wheel,
This invention aims to improve the mounting structure of a resinoid flexible grinding wheel sugar rotary grindstone to the grinder drive shaft.
（従来の技術）
従来のこの種回転砥石においては、グラインダ
ー駆動軸の先端に設けられたねじ軸にカラーと砥
石を順に挿通した後、ナツトをねじ軸にねじ込ん
で固定する構造が一般に採用されていた。これで
は、ナツトをグラインダーの付属工具で締緩して
砥石の交換等を行う必要がある。(Prior art) Conventional rotary grindstones of this type generally have a structure in which the collar and the grindstone are sequentially inserted into a threaded shaft provided at the tip of the grinder drive shaft, and then a nut is screwed into the threaded shaft to fix the collar and the grindstone. Ta. In this case, it is necessary to tighten and loosen the nut with the tool attached to the grinder and replace the grindstone.
この砥石の交換をより簡単に行えるようにする
ために、第４図に示すように前記ナツトに相当す
る座付ナツト３０を砥石３１と一体化したもの
が、本出願人によつて提案されている（実公昭61
−40465号公報）。このものでは、座付ナツト３０
は筒軸状のボス部３２の一端に座部３３を有し、
このボス部３２の内面にグラインダー駆動軸２０
のねじ軸２１に対応するねじ穴３４が形成されて
いる。この座付ナツト３０のボス部３２を砥石３
１の取付穴３５に嵌め込んで、その嵌め込み始端
側のボス部開口縁をかしめることにより、座付ナ
ツト３０を砥石３１と一体化している。符号３６
はかしめ部を示している。このような回転砥石で
は、砥石３１全体を手で捻り操作して駆動軸２０
に簡単に着脱することができる。 In order to make this grindstone replacement easier, the applicant has proposed a system in which a seated nut 30 corresponding to the aforementioned nut is integrated with a grindstone 31, as shown in FIG. There is (Jikko 61)
-40465). This one has a nut with a seat of 30
has a seat portion 33 at one end of a cylindrical shaft-shaped boss portion 32;
The grinder drive shaft 20 is attached to the inner surface of this boss portion 32.
A screw hole 34 corresponding to the screw shaft 21 is formed. The boss part 32 of this seated nut 30 is
The seat nut 30 is integrated with the grinding wheel 31 by fitting it into the mounting hole 35 of No. 1 and caulking the opening edge of the boss portion on the starting end of the fitting. code 36
The crimped part is shown. In such a rotary grindstone, the entire grindstone 31 is twisted by hand to rotate the drive shaft 20.
can be easily attached and detached.
（考案が解決しようとする課題）
上記の従来砥石では、座付ナツト３０の砥石３
１への固定をかしめによつて行つている。そのた
め、かしめ強度を越える負荷が作用すると、かし
め構造が破壊されて使用できなくなるおそれがあ
り、比較的小さな駆動トルクのグラインダーにし
か適用できない不利があつた。この点、前記公報
には、座付ナツト３０のボス部３２と取付穴３５
との断面形を非円形にして、座付ナツト３０から
砥石３１へのトルク伝達を確実化することが開示
されている。しかし、ボス３２の断面形が非円形
にした場合、かしめ加工が困難化することが予想
され、加工上の不利が避けられない。(Problem to be solved by the invention) In the above conventional whetstone, the whetstone 3 of the seated nut 30
1 is fixed by caulking. Therefore, if a load exceeding the caulking strength is applied, there is a risk that the caulking structure will be destroyed and become unusable, which has the disadvantage that it can only be applied to grinders with a relatively small drive torque. In this regard, the above publication describes the boss portion 32 of the seat nut 30 and the mounting hole 35.
It is disclosed that torque transmission from the seat nut 30 to the grindstone 31 is ensured by making the cross-sectional shape of the seat nut 30 non-circular. However, if the cross-sectional shape of the boss 32 is non-circular, it is expected that caulking will become difficult, and disadvantages in machining cannot be avoided.
この考案はナツト体を砥石と一体化した回転砥
石において、ナツト体の固定構造を改善すること
により、ナツト体から砥石へのトルク伝達を確実
化し、駆動トルクが大きいグラインダーにでも適
用できるようにした回転砥石を得ることを目的と
する。 This idea improves the fixing structure of the nut body in a rotating whetstone that integrates the nut body with the whetstone, thereby ensuring torque transmission from the nut body to the whetstone, making it applicable even to grinders with large drive torque. The purpose is to obtain a rotating grindstone.
（課題を解決するための手段）
上記の目的を達成するため、この考案では、ナ
ツト体を砥石にかしめにより固定することに加え
て、ナツト体と砥石とを両者の接合面で機械的に
係合連結するとともに接着剤で接着し、主にこの
機械的係合箇所でトルク伝達を行うようにする。(Means for solving the problem) In order to achieve the above object, in this invention, in addition to fixing the nut body to the grindstone by caulking, the nut body and the grindstone are mechanically engaged at the joint surface of the two. They are connected and bonded with adhesive, and torque is transmitted mainly at this mechanically engaged point.
具体的に、この考案の解決手段は、盤面中央に
取付穴を有するとともに該取付穴の周辺下面に研
削面を有する円盤状の砥石に対し、筒壁と該筒壁
の下端から張り出したフランジと該フランジの上
面に切り起し形成された複数の抜止め突起とから
なり、上記筒壁を上記取付穴の内面にインサート
し上記抜止め突起を上記砥石に喰い込ませた状態
でかつ上記フランジ下面を露出せしめた状態で上
記砥石の取付穴の下面周縁部に埋設固定された金
属薄板製の口金を備えるとともに、グラインダー
駆動軸の雄ねじ部に対して締り勝手に螺合される
雌ねじ穴を有し上記口金のフランジ下面に当接さ
れる座部と、該座部の上面から立上つて上記取付
穴に嵌挿される中空ボス部と、該中空ボス部の上
端部に上記取付穴の上面周縁部へかしめてなるか
しめ部とからなるナツト体を備える。上記砥石の
取付穴の下面周縁部には、上記口金のフランジを
貫通して形成された複数の凹部が設けられている
一方、上記ナツト体の座部上面には、上記凹部に
対応して該凹部に嵌合可能な複数の突起が設けら
れている。上記ナツト体は、上記突起を上記凹部
に嵌合せしめかつ上記座部とかしめ部とで上記取
付穴の上下周縁部に挟持された状態で接着剤によ
り上記口金のフランジに接着固定されているもの
とする。 Specifically, the solution of this invention is to provide a disc-shaped grindstone that has a mounting hole in the center of the board surface and a grinding surface on the lower surface around the mounting hole, and a cylindrical wall and a flange extending from the lower end of the cylindrical wall. It consists of a plurality of retaining protrusions cut and formed on the upper surface of the flange, and when the cylindrical wall is inserted into the inner surface of the mounting hole and the retaining protrusions are bitten into the grindstone, and the lower surface of the flange is It has a base made of a thin metal plate that is buried and fixed to the lower peripheral edge of the mounting hole of the grindstone with the part exposed, and also has a female threaded hole that is screwed into the male threaded part of the grinder drive shaft. A seat portion that comes into contact with the lower surface of the flange of the cap, a hollow boss portion that rises from the upper surface of the seat portion and is fitted into the mounting hole, and a peripheral edge of the upper surface of the mounting hole at the upper end of the hollow boss portion. It has a nut body consisting of a caulked part and a caulked part. A plurality of recesses formed through the flange of the mouthpiece are provided on the lower peripheral edge of the mounting hole of the grindstone, while a plurality of recesses are formed on the upper surface of the seat of the nut body in correspondence with the recesses. A plurality of protrusions are provided that can fit into the recesses. The nut body is fixed to the flange of the cap with an adhesive, with the protrusion fitted into the recess and sandwiched between the seat and the caulking portion at the upper and lower peripheral edges of the mounting hole. shall be.
（作用）
このことにより、この考案では、固定状態にお
いて、ナツト体は砥石に対して座部とかしめ部と
の挟持により固定されているとともに接着剤１７
で分離不能に固定されており、またナツト体から
砥石へのトルク伝達は、突起と凹部との機械的な
嵌合構造によつて行う。つまり、ナツト体の脱落
を防ぐための接合構造とは別にトルク伝達用の嵌
合構造を設けるので、駆動トルクが大きい場合で
も確実に砥石を回転駆動できる。(Function) As a result, in this invention, in the fixed state, the nut body is fixed to the grindstone by being held between the seat part and the caulking part, and the adhesive 17
Torque is transmitted from the nut body to the grindstone by a mechanical fitting structure between the protrusion and the recess. That is, since the fitting structure for torque transmission is provided separately from the joining structure for preventing the nut body from falling off, the grindstone can be reliably rotated even when the driving torque is large.
この場合、上記突起と凹部との嵌合構造は、砥
石の取付穴の下面周縁部に一体的に埋設された口
金のフランジに設けられる貫通穴の突起が嵌入す
ることで補強され、より大きなトルクの伝達を可
能にする。さらに、接着剤は、上記口金のフラン
ジにおける抜止め突起の切起し跡に浸入するの
で、この接着剤のアンカー作用により、上記接着
強度をより高めることができ、トルク伝達の増大
化にも寄与できる。 In this case, the fitting structure between the protrusion and the recess is reinforced by the fitting of the protrusion of the through hole provided on the flange of the mouthpiece, which is integrally embedded in the lower peripheral edge of the mounting hole of the grindstone, and the torque is increased. communication. Furthermore, since the adhesive penetrates into the cut and raised marks of the retaining protrusion on the flange of the cap, the anchoring effect of this adhesive can further increase the adhesive strength, which also contributes to increased torque transmission. can.
（実施例）
第１図ないし第３図はこの考案をオフセツト型
の回転砥石に適用した実施例を示している。(Embodiment) FIGS. 1 to 3 show an embodiment in which this invention is applied to an offset type rotary grindstone.
第２図において、回転砥石１は、円盤上の砥石
２と、その盤面中央の取付穴３に固定されるナツ
ト体４とからなる。砥石２は下面が研削面となる
リング状の研削部５を有し、この研削部５の内側
に連続して円錐台状の取付部６が膨出形成され、
研削部５に対してオフセツト（隆起）された取付
部６の上端壁７に前記取付穴３が通設されてい
る。 In FIG. 2, the rotary grindstone 1 consists of a disk-shaped grindstone 2 and a nut body 4 fixed to a mounting hole 3 in the center of the disk surface. The grinding wheel 2 has a ring-shaped grinding part 5 whose lower surface is a grinding surface, and a truncated cone-shaped mounting part 6 is formed continuously on the inside of this grinding part 5,
The mounting hole 3 passes through the upper end wall 7 of the mounting portion 6 which is offset (raised) with respect to the grinding portion 5 .
第１図の拡大表示部に示したように、取付穴３
の内面には金属薄板製の口金８がインサートされ
ている。この口金８は、筒壁８ａとその下端に張
り出されたフランジ８ｂとからなり、砥石２の上
端壁７の下面側においてフランジ８ｂの下面のみ
が露出する状態で埋設固定されている。図示して
いないが、フランジ８ｂの板面数個所には、上端
壁７に喰い込む抜止め突起が切り起し形成されて
いる。 As shown in the enlarged display of Fig. 1, the mounting hole 3
A cap 8 made of a thin metal plate is inserted into the inner surface of the cap. This mouthpiece 8 consists of a cylindrical wall 8a and a flange 8b projecting from the lower end thereof, and is embedded and fixed on the lower surface side of the upper end wall 7 of the grindstone 2 with only the lower surface of the flange 8b exposed. Although not shown, retaining protrusions that bite into the upper end wall 7 are cut and raised at several locations on the plate surface of the flange 8b.
上記ナツト体４はアルミニウム等の金属または
プラスチツク成形体からなり、円形の座部１０の
上面から筒状の中空ボス部１１が突設され、この
ボス部１１から座部１０にわたつて、かしめ穴１
２と、このかしめ穴１２よりやや小径でグライン
ダー駆動軸の雄ねじ部に締り勝手に螺合される雌
ねじ穴１３が形成され、上記ボス部１１の上端を
取付穴３の上面周縁部へかしめてなる。また、座
部１０の下面の周方向４個所に締緩操作用の操作
穴１０ａが形成されている。 The nut body 4 is made of a metal such as aluminum or a plastic molded body, and has a cylindrical hollow boss portion 11 projecting from the top surface of a circular seat portion 10, and a caulking hole extending from the boss portion 11 to the seat portion 10. 1
2, a female screw hole 13 is formed which has a slightly smaller diameter than the caulking hole 12 and is screwed into the male screw portion of the grinder drive shaft, and the upper end of the boss portion 11 is caulked to the upper peripheral edge of the mounting hole 3. . Further, operation holes 10a for tightening/loosening operations are formed at four locations in the circumferential direction on the lower surface of the seat portion 10.
第１図に示すように、上記ナツト体４はボス部
１１を取付穴３に下側から嵌め込んで砥石２と一
体化する。このとき、取付穴３と口金８のフラン
ジ８ｂとの外表面とに例えばエポキシ系の接着剤
１７を塗布して、ナツト体４を砥石２に接着固定
する。さらに、ナツト体４が取付穴３から抜外れ
るのをより確実に防ぐために、かしめ穴１２の上
端開口縁を拡開変形させてかしめ固定する。 As shown in FIG. 1, the nut body 4 is integrated with the grindstone 2 by fitting the boss portion 11 into the mounting hole 3 from below. At this time, an epoxy adhesive 17, for example, is applied to the attachment hole 3 and the outer surface of the flange 8b of the base 8 to adhesively fix the nut body 4 to the grindstone 2. Further, in order to more reliably prevent the nut body 4 from coming off from the mounting hole 3, the upper opening edge of the caulking hole 12 is expanded and deformed and caulked and fixed.
上記ナツト体４から砥石２へのトルク伝達を確
実化するために、両部材２，４の接合面１８に機
械的な連結手段１４を設ける。詳しくは、ナツト
体４の座部１０の上面にピン形状の突起１５を等
間隔おきに４個立設する。また、砥石２の上端壁
７の下面に、前記突起１５に対応する４個の凹部
１６を形成する。そして、各突起１５がそれぞれ
凹部１６に嵌合した状態で、前述のようにナツト
体４を砥石２に接着及びかしめ固定する。なお、
上記凹部１６の開口縁は口金８のフランジ８ｂに
貫通された貫通穴８ｃで構成されることで補強さ
れている。 In order to ensure torque transmission from the nut body 4 to the grinding wheel 2, a mechanical coupling means 14 is provided at the joint surface 18 of both members 2, 4. Specifically, four pin-shaped protrusions 15 are provided at equal intervals on the upper surface of the seat 10 of the nut body 4. Furthermore, four recesses 16 corresponding to the projections 15 are formed on the lower surface of the upper end wall 7 of the grindstone 2 . Then, with each protrusion 15 fitted into the recess 16, the nut body 4 is bonded and caulked to the grindstone 2 as described above. In addition,
The opening edge of the recess 16 is reinforced by a through hole 8c penetrated by the flange 8b of the base 8.
第３図において、グラインダーの駆動軸２０の
下部に雄ねじ部を有するねじ軸２１が突設されて
いる。このねじ軸２１にカラー２２を挿通した
後、上端壁７がカラー２２に対向した状態でナツ
ト体４をねじ軸２１にねじ込む。このとき、砥石
２を手で捻り操作するだけで、回転砥石１を駆動
軸２０の強固に装着できる。また、回転砥石１の
交換時も、砥石２を手で捻り操作することによつ
て回転砥石１を駆動軸２０から容易に取外すこと
ができる。なお、駆動軸２０の回転方向と、雌ね
じ穴１３及びねじ軸２１の螺進方向との関係は、
使用時に砥石２が受ける研削反力によつてナツト
体４が締まり勝手にねじ軸２１上を螺進するよう
に設定しておく。また、回転砥石１の交換時、ナ
ツト体４のねじ軸２１へのねじ込み強度が極端に
大きい場合は、付属工具で操作穴１４を操作して
回転砥石１の取外しを行うこともある。こうした
事例を除き、通常は手で砥石２を直接捻り操作し
てその着脱を行うことができる。 In FIG. 3, a screw shaft 21 having a male threaded portion is provided protruding from the lower part of a drive shaft 20 of the grinder. After inserting the collar 22 into the screw shaft 21, the nut body 4 is screwed into the screw shaft 21 with the upper end wall 7 facing the collar 22. At this time, the rotary grindstone 1 can be firmly attached to the drive shaft 20 simply by twisting the grindstone 2 by hand. Furthermore, when replacing the rotary whetstone 1, the rotary whetstone 1 can be easily removed from the drive shaft 20 by twisting the whetstone 2 by hand. The relationship between the rotational direction of the drive shaft 20 and the spiral direction of the female screw hole 13 and the screw shaft 21 is as follows.
The nut body 4 is tightened by the grinding reaction force applied to the grindstone 2 during use, and is set so as to freely spiral on the screw shaft 21. Furthermore, when replacing the whetstone 1, if the strength with which the nut body 4 is screwed into the screw shaft 21 is extremely strong, the whetstone 1 may be removed by operating the operation hole 14 with an attached tool. Except for such cases, the grindstone 2 can usually be attached or detached by directly twisting it by hand.
（考案の効果）
以上の如く、この考案では、ナツト体を砥石と
一体化するについて、両部材の接合面に突起と凹
部とを設け、突起が凹部に嵌合した状態でナツト
体を砥石に接着及びかしめ固定し、突起と凹部と
の機械的な嵌合構造によつてナツト体から砥石へ
駆動トルクを伝達するようにしたので、かしめ構
造によつてトルク伝達を行つていた従来砥石に比
べて、より大きな駆動トルクで回転砥石を使用で
きることとなつた。これにより、グラインダーの
駆動回転数を増加させ、あるいは大径の砥石を用
いて効率良く研削作業を行うことが可能となる。(Effects of the invention) As described above, in this invention, in order to integrate the nut body with the whetstone, a protrusion and a recess are provided on the joint surfaces of both members, and the nut body is attached to the whetstone with the protrusion fitted into the recess. The drive torque is transmitted from the nut body to the grinding wheel by adhesive and caulking, and the mechanical fitting structure between the protrusion and the recess allows the drive torque to be transmitted from the nut body to the grinding wheel. In comparison, it is now possible to use a rotating grindstone with a larger drive torque. This makes it possible to increase the drive rotation speed of the grinder or use a large-diameter grindstone to perform grinding work efficiently.
さらに、上記突起と凹部との嵌合構造は、砥石
の取付穴の下面周縁部に一体的に埋設された口金
のフランジに設けられる貫通穴に突起が嵌入する
ことで補強されるので、より大きなトルクの伝達
が可能である。さらに、接着剤は、上記口金のフ
ランジにおける抜止め突起の切起し跡に浸入する
ので、この接着剤のアンカー作用により、上記接
着強度をより高めることができ、トルク伝達の増
大化に寄与できる。 Furthermore, the fitting structure between the protrusion and the recess is reinforced by the protrusion fitting into the through-hole provided in the flange of the mouthpiece, which is integrally embedded in the lower peripheral edge of the grindstone's mounting hole. Torque transmission is possible. Furthermore, since the adhesive penetrates into the cut and raised marks of the retaining protrusion on the flange of the cap, the anchoring action of this adhesive can further increase the adhesive strength and contribute to increasing torque transmission. .
第１図ないし第３図はこの考案の実施例を示し
ており、第１図は回転砥石の縦断面図、第２図は
一部を切欠いた分解斜視図、第３図は駆動軸に装
着した状態の縦断面図である。第４図は従来砥石
を示す分離状態の縦断面図である。
１……回転砥石、２……砥石、３……取付穴、
４……ナツト体、８……口金、８ｃ……貫通穴、
１３……雌ねじ穴、１５……突起、１６……凹
部、１７……接着剤。
Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a longitudinal cross-sectional view of the rotating grindstone, Figure 2 being an exploded perspective view with a portion cut away, and Figure 3 being attached to the drive shaft. FIG. FIG. 4 is a longitudinal sectional view of a conventional grindstone in a separated state. 1...Rotating whetstone, 2...Whetstone, 3...Mounting hole,
4... Nut body, 8... Cap, 8c... Through hole,
13...Female screw hole, 15...Protrusion, 16...Recess, 17...Adhesive.
Claims (1)
周辺下面に研削面を有する円盤状の砥石と、 筒壁と該筒壁の下端から張り出したフランジと
該フランジの上面に切り起し形成された複数の抜
止め突起とからなり、上記筒壁を上記取付穴の内
面にインサートし上記抜止め突起を上記砥石に喰
い込ませた状態でかつ上記フランジ下面に露出せ
しめた状態で上記砥石の取付穴の下面周縁部に埋
設固定された金属薄板製の口金と、 グラインダー駆動軸の雄ねじ部に対して締り勝
手に螺合される雌ねじ穴を有し上記口金のフラン
ジ下面に当接される座部と、該座部の上面から立
上つて上記取付穴に嵌挿される中空ボス部と、該
中空ボス部の上端部を上記取付穴の上面周縁部へ
かしめてなるかしめ部とからなるナツト体とを備
え、 上記砥石の取付穴の下面周縁部には、上記口金
のフランジを貫通して形成された複数の凹部が設
けられている一方、上記ナツト体の座部上面に
は、上記凹部に対応して該凹部に嵌合可能な複数
の突起が設けられており、 上記ナツト体は、上記突起を上記凹部に嵌合せ
しめかつ上記座部とかしめ部とで上記取付穴の上
下面周縁部に挟持された状態で接着剤により上記
口金のフランジに接着固定されていることを特徴
とする回転砥石。[Scope of Claim for Utility Model Registration] A disc-shaped grindstone having a mounting hole in the center of the board surface and a grinding surface on the lower surface around the mounting hole, a cylindrical wall, a flange protruding from the lower end of the cylindrical wall, and an upper surface of the flange. The cylindrical wall is inserted into the inner surface of the mounting hole, and the retaining protrusions are bitten into the grindstone and exposed on the lower surface of the flange. In this state, there is a base made of a thin metal plate embedded and fixed in the lower peripheral edge of the mounting hole of the grindstone, and a female threaded hole that is screwed into the male threaded part of the grinder drive shaft, and the lower surface of the flange of the said base has a a seat to be brought into contact; a hollow boss that rises from the upper surface of the seat and is fitted into the mounting hole; and a caulking portion that is formed by caulking the upper end of the hollow boss to the periphery of the upper surface of the mounting hole. A nut body consisting of a nut body, a plurality of recesses formed through the flange of the mouthpiece are provided at the lower peripheral edge of the mounting hole of the grindstone, and a plurality of recesses are formed at the upper surface of the seat part of the nut body. is provided with a plurality of protrusions corresponding to the recesses that can be fitted into the recesses, and the nut body is configured to fit the protrusions into the recesses, and the seat portion and the caulking portion engage the mounting hole. A rotating whetstone, characterized in that the whetstone is fixed to the flange of the mouthpiece with an adhesive while being held between the peripheral edges of the upper and lower surfaces of the whetstone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141195U JPH0511962Y2 (en) | 1987-09-16 | 1987-09-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141195U JPH0511962Y2 (en) | 1987-09-16 | 1987-09-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446165U JPS6446165U (en) | 1989-03-22 |
| JPH0511962Y2 true JPH0511962Y2 (en) | 1993-03-25 |
Family
ID=31406051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987141195U Expired - Lifetime JPH0511962Y2 (en) | 1987-09-16 | 1987-09-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511962Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT502285B1 (en) * | 2004-10-19 | 2008-12-15 | Gissing Gerhard | CIRCUIT RING WITH DOUBLE BOLTING DEVICE |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6140465U (en) * | 1984-08-09 | 1986-03-14 | 株式会社彦間製作所 | Double swing type backhoe ladder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH039976Y2 (en) * | 1985-12-11 | 1991-03-12 |
-
1987
- 1987-09-16 JP JP1987141195U patent/JPH0511962Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6140465U (en) * | 1984-08-09 | 1986-03-14 | 株式会社彦間製作所 | Double swing type backhoe ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6446165U (en) | 1989-03-22 |
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